CN100567115C - Paper transferrer and method, Device for treating paper and image processing system - Google Patents

Abstract

The present invention relates to paper transferrer, paper transports method, Device for treating paper, and image processing system and paper that described Device for treating paper is set transport method.Under comprising, transports paper transferrer passage (2b), (2c), pre-stored channel (2d), second transports roller (6), and the 3rd transports roller (7), and switches pawl (9).Transport passage (2b) under described, (2c) paper is led bookbinding dish (14), described pre-stored channel (2d) under transport passage (2b), (2c) bifurcated makes described paper temporarily keep out of the way wherein, described second transport roller (6) and the 3rd transport roller (7) along under transport passage (2b), (2c) be provided with, transport roller (6) and the 3rd by second and transport roller (7) and make described paper drive in the wrong direction, at this moment, described switching pawl (9) is with described paper guiding pre-stored channel (2d).This paper transferrer can transport with afterwards a piece of paper is superimposed keeping out of the way in the preceding sheet of pre-stored channel (2d), it is characterized in that, according to the size of paper along carriage direction, transport the driving that roller (6) and the 3rd transports roller (7) to second and switch, paper is transported towards bookbinding dish (14) direction or pre-stored channel (2d) direction.

Description

Paper transferrer and method, Device for treating paper and image processing system

Technical field

The present invention relates to paper (sheet offset medium, sheet-shaped recording medium such as transfer paper) conveyer, described paper is carried out paging, order and sew, the Device for treating paper of handling such as pile up, one or the image processing system of described Device for treating paper is set separately, and paper transports method.

Background technology

In the past, can exemplify as the spy and open 2004-001998 communique (following brief note is " patent documentation 1 "), the spy opens 2001-097631 communique (following brief note is " patent documentation 2 "), and it is the known invention of people that the spy opens disclosed in the flat 11-199128 communique (following brief note is " patent documentation 3 ").

Put down in writing a kind of Device for treating paper in the patent documentation 1, configuration bifurcated pawl in paper-delivering path, the paper rear end is transported roller by after this bifurcated pawl by reverse, can make paper stop guiding paper incorporating section, paper rear end, closes with next quires and transports.In this Device for treating paper,, the quires more than two can be closed and transport by repeating above-mentioned action.

Put down in writing a kind of Device for treating paper in the patent documentation 2, it comprises the means of transporting, the stop means, and judging means stops the number limiting means.The described means of transporting are transported to discharge orifice with paper along transporting passage, described stop means make described paper temporarily rest on described transporting on the means, described judging means judges whether the paper that is transported by the described means of transporting is special paper, judge that when described paper was special paper, described stop number limiting means limited the paper number that stops by described stop means.

Put down in writing a kind of Device for treating paper in the patent documentation 3, it comprises row's paper disc, the post-processing dish, and first transports passage, and second transports passage.Described row's paper disc is directly piled up the paper of discharging from image processing system, or pile up a stacker through post-processing, described post-processing dish is used for a described stacker is carried out post-processing, described first transports passage leads to described row's paper disc from inlet portion, and described second transports passage transports the passage bifurcated from described first.This Device for treating paper is characterised in that: transport passage described first the switching pawl is set, simultaneously, transport the stop that the passage setting converges with it and transport passage transporting second of road bifurcated by described switching pawl from described first.

But, in patent documentation 1 disclosed technology, with paper rear end guiding paper incorporating section, and when it is stopped, expose up to the paper front end and to transport only several millimeters on roller, that is to say, be in the state that soon does not pass through, reverse and transport, it is stopped in suitable position.Instantly a piece of paper front end is about to arrive and transports before the roller, just changes once more, reduces the skew between each paper as far as possible, and with its superimposed transporting.But if all paper of size inequality are carried out same action, with its superimposed transporting, then along the long more paper of the size of carriage direction, it reverses apart from also long more.Therefore, elongated from beginning to reverse to the time that stops to transport, have to prolong the pitch time between itself and following a piece of paper.

On the other hand, in recent years, along with the high speed of image processing system and the development of high life technology, make the interval of paper of the various sizes be used to form image, promptly the time between paper and the paper shortens.Like this, when long size paper was transported in reverse, before the paper rear end arrived institute's allocation, following a piece of paper was transported to, and causes carrying out above-mentioned superimposed transporting.Therefore, need to increase the interval between paper and the paper, that is to say, need to prolong the time between paper and the paper.Like this, just produced the problem that reduces the image processing system productive capacity.In the patent documentation 2,3 invention disclosed can not corresponding paper and paper between haulage time cripetura technology.

Summary of the invention

The present invention puts forward for solving the existing problem of above-mentioned prior art, the objective of the invention is to, a kind of image processing system is provided, even along the occasion of the long paper of carriage direction size, also can corresponding paper and paper between time cripeturaization, image forms the speed high speed.

To achieve these goals, the present invention proposes following scheme:

(1) a kind of paper transferrer is provided with:

First transports passage, and paper is sent to Device for treating paper;

Second transports passage, transports the passage bifurcated from described first, and temporary transient storage is transported to described first paper that transports passage;

Paper transports means, selectively the reversing sense of described paper towards described Device for treating paper direction or described Device for treating paper is transported;

The guiding means are arranged at described the first, the second crotch that transports passage, when make described paper be transported to second when transporting passage towards reversing sense by the described means of transporting, paper are led;

Control assembly is used to control described paper and transports means, according to the size of described paper along carriage direction, changes described tapping point and described distance of transporting between means.

(2) in (1) described paper transferrer, it is characterized in that:

Described paper bag is drawn together and temporarily is stored in second a piece of paper that transports passage, and closes second paper that transports with described first quires.

(3) in (2) described paper transferrer, it is characterized in that:

When described a piece of paper is transported to described second when transporting passage towards reversing sense, described control assembly makes the paper means of transporting change the stop position of this paper front end according to the size of paper along carriage direction.

(4) in (1) described paper transferrer, it is characterized in that:

The described paper means of transporting comprise along first transports the some to transporting roller of each position configuration of passage;

Described control assembly is according to the size of paper, and that determines to be arranged on each position, tapping point downstream is some to transporting a pair of in the roller, makes described paper transport the front end of means at the described paper of tapping point downstream clamping.

(5) in (4) described paper transferrer, it is characterized in that:

Somely comprise and connecing from means to transporting in the roller at least one pair of, this connect from means with described at least one pair of transport first state that roller switches to the described paper of clamping, and the described paper of not clamping, second state that it is passed through.

(6) in (5) described paper transferrer, it is characterized in that:

The described paper means of transporting comprise that be arranged on described tapping point downstream some transport roller to transporting a pair of first of upstream side in the roller, and described first transports roller is arranged on and separates crunode B5 paper lateral dimension (182mm) with interior position.

(7) in (6) described paper transferrer, it is characterized in that:

The described paper means of transporting comprise that being arranged on described a pair of first transports a pair of second of roller downstream and transport roller, and described second transports roller is arranged on and separates crunode B5 paper longitudinal size (257mm) with interior position.

(8) in (7) described paper transferrer, it is characterized in that:

When the paper that transports is equal to or greater than B5 paper lateral dimension (182mm) along the size of carriage direction, during less than B5 paper longitudinal size (257mm), described first transports roller is switched to first state.

(9) in (7) described paper transferrer, it is characterized in that:

When the paper that transports when the size of carriage direction is equal to or greater than B5 paper longitudinal size (257mm), described first transports roller is switched to second state.

(10) in (5) described paper transferrer, it is characterized in that:

When the paper that transports, transports roller with described first and switches to first state during less than document paper size (355.6mm) along the size of carriage direction;

When the paper that transports when the size of carriage direction is equal to or greater than document paper size (355.6mm), transport roller with described first and switch to second state.

(11) in (7) described paper transferrer, it is characterized in that:

When described first transported roller and keep second state, described second transports roller can select to transport described paper towards described Device for treating paper working direction or reversing sense.

(12) in (2) described paper transferrer, it is characterized in that:

When paper transports means a piece of paper and second quires are closed when being transported to described Device for treating paper, control described second paper and stop at and arrive described paper and transport institute's allocation before the means.

(13) in (12) described paper transferrer, it is characterized in that:

Described institute allocation is that described second paper front end and described paper transport the means position contacting.

(14) in (2) described paper transferrer, it is characterized in that:

Be provided with bending and allow means, when the described paper means of transporting are closed fortune to Device for treating paper with described a piece of paper and second quires, allow second paper arrive produce after described paper transports means crooked.

(15) in (14) described paper transferrer, it is characterized in that:

When described paper transports means described a piece of paper and described second quires are closed when being sent to Device for treating paper, control makes second paper slow down before transporting means arriving described paper.

In (14) described paper transferrer, it is characterized in that (16) described bending allows that means comprise:

Guide plate is set to facing to by described first paper that transports passage;

Fulcrum is arranged on the upstream of described guide plate, supports described guide plate revolution freely;

Elastomeric element often transports passage towards described first described guide plate is energized;

At least one block limits the free-ended position of described guide plate, guarantees to carry out that paper transports first transports width of channel.

(17) in (16) described paper transferrer, it is characterized in that:

Described bending allows that means are arranged on described first upstream position along the paper carriage direction that transports roller.

(18) a kind of Device for treating paper is characterized in that, be provided with (1)-(17) in each described paper transferrer.

(19) a kind of image processing system is characterized in that, be provided with (1)-(17) in each described paper transferrer.

(20) a kind of image processing system is characterized in that, is provided with the Device for treating paper described in (18).

(21) a kind of paper transports method, carries out in paper transferrer, it is characterized in that, comprising:

Accept step, accept a piece of paper that obtains from image processing system;

Determining step according to the size of described a piece of paper along carriage direction, determines that first transports passage and second and transport the tapping point of passage and paper and transport distance between the means;

A piece of paper transports step, and described a piece of paper is transported towards the direction of advancing, and transports towards reversing sense then;

Storing step is stored in pre-stored channel with described a piece of paper;

Second paper transports step, and second paper is transported towards the direction of advancing;

The superimposed step of transporting is closed described a piece of paper and second quires and is transported.

(22) transport in the method at (21) described paper, it is characterized in that:

By selecting a pair of roller that transports the roller to transporting, carry out described determining step from some.According to paper transferrer of the present invention, Device for treating paper, image processing system, paper transports method, according to paper size along carriage direction, change is transported tapping point that passage and second transports passage to described distance of transporting means from first, perhaps makes when paper drives in the wrong direction in advance, according to the paper size along carriage direction, change makes the position that described paper stops, even use the long paper occasion of carriage direction paper size, also can shorten the paper interbody spacer, can to form the speed high speed corresponding with image.

Description of drawings

Fig. 1 represents the summary pie graph of the image formation system that the Device for treating paper that related to by the embodiment of the invention and image processing system constitute;

Fig. 2 A, the block scheme that the image formation system control of 2B presentation graphs 1 constitutes;

Fig. 3 A-3D represents that along the length of carriage direction be more than the B5 width (182mm), B5 length (257mm) less than paper transport the instruction diagram of action;

Fig. 4 represents to carry out the action occasion of Fig. 3 A-3D, the motion time table of second paper front end and rear end;

Fig. 5 represents and the cooresponding inlet roller of time schedule shown in Figure 4 that first transports the motion time table that roller and second transports roller;

Fig. 6 represents that second paper front end stops at second and transport after the roller holding part, when being transported once more with a piece of paper, and the motion time table of this a piece of paper front end and rear end;

Fig. 7 represents and the cooresponding inlet roller of the time diagram of Fig. 6 that first transports the motion time table that roller and second transports roller;

Fig. 8 A-8D represents the above paper of B5 length (257mm) is transported the instruction diagram of action;

Fig. 9 represents that the second, the three transports the driver train of roller and the front elevation of pressure cancel system;

Figure 10 represents that the second, the three transports the driver train of roller and the lateral plan of pressure cancel system;

Figure 11 A, 11B represent that the second, the three transports the driver train of roller and the action specification figure of pressure cancel system;

Figure 12 represents to transport with Figure 10 cooresponding the second, the three figure of the driver train of roller;

Figure 13 represents that second transports the oblique drawing of the pressure cancel system of roller;

Figure 14 represents the front elevation of the pressure cancel system of Figure 13;

Figure 15 A-15C represents the diagram of circuit of the action controlled step in the first embodiment of the invention;

Figure 16 A-16C represents that second embodiment of the invention relates to the instruction diagram of the action of paper transferrer;

The Q direction of arrow view of Figure 17 presentation graphs 16A;

Figure 18 represents to carry out the action occasion of Figure 16, the motion time table of second paper front end and rear end;

Figure 19 represents and the cooresponding inlet roller of the time schedule of Figure 18 that first transports roller, and second transports the motion time table of roller;

Figure 20 A-20H represents the instruction diagram of the paper transferrer action that third embodiment of the invention relates to;

Figure 21 represents to make second paper to rest on pre-stored channel, closes the linear velocity figure of an example when transporting with next quires;

Figure 22 A-22E represents the instruction diagram of the paper transferrer action that fourth embodiment of the invention relates to;

The pre-stored channel 2d that Figure 23 A-23E is illustrated in Figure 22 A-22E sets up the figure of guide plate;

Figure 24 A, 24B represent that the main portion of the paper transferrer that fifth embodiment of the invention relates to constitutes and the instruction diagram of action;

Figure 25 represents that the main portion of the paper transferrer that another example relates in the fifth embodiment of the invention constitutes and the instruction diagram of action;

Figure 26 A, 26B represent the main portion pie graph of the paper transferrer that sixth embodiment of the invention relates to;

Figure 27 A, 27B presentation graphs 26A, the variation of 26B;

Figure 28 represents the block scheme that the control of sixth embodiment of the invention constitutes;

Figure 29 A-29D represents to control in the sixth embodiment of the invention occasion (1), the instruction diagram of the mobile status of paper;

Figure 30 A-30D represents to control in the sixth embodiment of the invention occasion (2), the instruction diagram of the mobile status of paper;

Figure 31 represents the diagram of circuit of action step shown in Figure 30 A-30D;

Figure 32 A, 32B represent as controlling occasion (2), the instruction diagram of another mobile status of paper in the sixth embodiment of the invention;

Figure 33 presentation graphs 32A controls the diagram of circuit of another action step of occasion (2) shown in the 32B;

Figure 34 A, 34B represent to control in the sixth embodiment of the invention occasion (3), the mobile status instruction diagram of paper;

Figure 35 A-35H represents to control in the sixth embodiment of the invention occasion (4), the mobile status instruction diagram of paper;

Figure 36 A, the diagram of circuit of action step shown in the 36B presentation graphs 35A-35H;

Figure 37 A-37D represents the instruction diagram of the mobile status of paper in the seventh embodiment of the invention;

Figure 38 represents the time schedule of beginning paper action shown in Figure 37 A-37D;

The diagram of circuit of the action step shown in Figure 39 presentation graphs 37A-37D;

Figure 40 A-40G represents the figure of other actions in the seventh embodiment of the invention;

Figure 41 A, the diagram of circuit of the action step of 41B presentation graphs 40A-40G.

The specific embodiment

Below, present invention will be described in detail with reference to the accompanying embodiment, in following examples, though to inscape, kind, combination, shape, configuration waits and has done various qualifications relatively,, these only exemplify, and the present invention is not limited thereto.In the following description, to the additional same-sign of the same section of each embodiment, the repetitive description thereof will be omitted.

First embodiment

Fig. 1 represents the summary pie graph of the image formation system that the Device for treating paper (sheet processing equipment) that related to by the embodiment of the invention and image processing system constitute.

The image formation system that present embodiment relates to mainly is to be made of image processing system 1 and Device for treating paper (being also referred to as sheet post-processing apparatus) 2.Described image processing system 1 forms image on the paper as sheet-shaped recording medium, the paper that 2 pairs of described Device for treating paper are discharged by image processing system 1 are adjusted, and orders and post-processing such as sews.Image processing system 1 has on paper the function that forms image, be in duplicator, chopping machine, facsimile apparatus or the compounding machine that makes up these functions any one.Here, be that people are known because the image that this image processing system has forms function, not main points of the present invention, omission is described.In addition, Device for treating paper 2 is sewed outside the function except having described adjustment, ordering, and can also have the known for example perforation for people, and is folding, and functions such as paging can be set according to the specification of Device for treating paper 2.

Device for treating paper 2 mainly comprises paper transferrer 50 and paper handling part 18.More particularly, this sheet post-processing apparatus 2 comprises receiving port 2a, transports down passage 2b, 2c, on transport passage 2f, pre-stored channel 2d, paper handling part 18, exit roller 16, ejection port 15, row's paper disc 3 etc.Receiving port 2a accepts the paper by the ejection port 1a discharge of image processing system 1 as accepting opening.With this receiving port 2a bonded assembly paper-delivering path 2g inlet porting sensor S1 and a pair of inlet roller 4.

The paper-delivering path 2g that is positioned at a pair of inlet roller 4 downstreams with under transport passage 2b, 2c and on transport passage 2f bifurcated, set bifurcated pawl 2e at this tapping point.Transport passage 2b, 2c under described with paper paper handling part 18 sides that lead, transport passage 2b, 2c and pre-stored channel 2d crotch under described, be provided with switch pawl 9 (below, the upstream side that the tapping point 2h that switches pawl 9 is set is called " first time transport passage 2b ", the downstream of this tapping point 2h is called " second time transport passage 2c "), transport passage 2f on described with paper ejection port 15 sides (among the figure not in detail expression) that directly lead, drive described bifurcated pawl 2e by stepper motor (not diagram), switch paper-delivering path.

Sensor S2 and first is set transports roller 5 transporting passage 2b for first time.Described sensor S2 detects be transported to the described paper that transports the passage 2b for first time from paper carriage direction upstream side.In first bottom of transporting passage 2b, pre-stored channel 2d is with decided angle bifurcated, so that can accept and the retrograde paper of carriage direction.At tapping point 2h the switching pawl 9 with guide function is set, when paper and carriage direction were retrograde, pre-stored channel 2d can lead paper.Transport passage 2c for second time and lead to paper handling part 18 from described tapping point 2h.Set a pair of second and transport roller 6 and transport roller 7 transporting passage 2c for second time, simultaneously, set a pair of exit roller 8 in the described second downstream of transporting passage 2c with a pair of the 3rd.

Paper handling part 18 is by bookbinding dish 14, adjusts hurdle 10, and hurdle, rear end 11 knocks roller 14a, bookbinding portion 12, and output mechanism constitutes.The 14 stacked paper that are discharged from are coiled in described bookbinding, 10 pairs on described adjustment hurdle is stacked in the position vertical with carriage direction of the paper on the bookbinding dish 14 and adjusts, the position of paper along carriage direction adjusted on hurdle, described rear end 11, the described roller 14a that knocks makes that a stacker rearward end hurdle 11 sides of discharging on bookbinding dish 14 are close, the stacker that process is adjusted on 12 pairs of bookbinding dishes 14 of described bookbinding portion is ordered and is sewed, described output mechanism be by discharge be with 13 with a pair of discharge pawl 13a, 13b constitutes, and discharges with 13 and is discharged ordering a stacker of sewing on the bookbinding dish 14.Discharge is with 13 to be erected between distributing roller 19 and the driven voller 19a, by discharging pawl 13a or 13b, a described stacker is discharged on the paper disc 3 from ejection port 15.In row's paper bar 17 free end side exit roller 16 is set, described row's paper bar 17 can rotate by bolster 17a supporting.With decided thrust pressure exit roller 16 is pushed away up on one side, can reliably carry out the transporting of a described stacker on one side.

Fig. 2 represents the block scheme that the control of the image formation system that the present invention relates to constitutes, owing to be restricted, can't be illustrated on one page paper, is divided into Fig. 2 A and 2B and represents.In Fig. 2, control setup 31 is by having CPU32, the microcomputer formation of I/O interface 33 grades.By I/O interface 33, will be from each switch of the guidance panel of image processing system 1 body, and inlet sensor S1, sensor S2 and other sensors send signal and are input to CPU32.CPU32 controls each motor and magnet coil etc. according to the signal of input.In addition, bookbinding portion 12 controls by bookbinding portion CD-ROM drive motor and bookbinding portion being moved motor (not diagram), and binding needle is squeezed into institute's allocation by the CPU32 indication, carries out ordering of a stacker and sews action.

CPU32 uses random access memory (Random Access Memory, be designated hereinafter simply as " RAM ", do not illustrate) as the work area, carry out read-only memory (ROM) (Read Only Memory, be designated hereinafter simply as " ROM ", do not have diagram) in the program that write, to carry out the control of sheet post-processing apparatus 2.And, will control and handle required data storage in described RAM and electrically erasable programmable ROM (Electrically-erasable Programmable Read Only Memory is designated hereinafter simply as " EPROM ").

Below, to sheet-fed transport the action describe.

Paper by the ejection port 1a of image processing system 1 output is transported to sheet post-processing apparatus 2 from receiving port 2a.Be transported to the paper of sheet post-processing apparatus 2, S1 is detected by the inlet sensor, is transported to paper-delivering path 2g by inlet roller 4.Handle indication by the CPU32 in the control setup 31 according to the paper that sends from image processing system 1, the switching direction of indication bifurcated pawl 2e.Paper is transported to paper treatment channel 18 side occasions,, the paper guiding is transported passage 2b first time by driving bifurcated pawl 2e towards graphic counterclockwise (state of Fig. 1) revolution.Be imported into the paper that transports passage 2b for first time,, drive switching pawl 9 and turn round, guarantee that paper transports the space towards graphic counterclockwise by transporting the paper transport force that roller 5 obtains from inlet roller 4 and first.Thus, paper is directed to and transports passage 2c side for second time from the space of transporting that obtains by above-mentioned steps, transports roller 6, the three through second and transports roller 7, is discharged to bookbinding dish 14 by exit roller 8.

The paper that is discharged from breaks away from from the holding part of exit roller 8, fall bookbinding dish 14 after, temporarily fall towards the arrow B direction by deadweight, simultaneously, fall by knocking knocking of roller 14a towards the below, make the rear end alignment of paper carriage direction by hurdle, rear end 11.By sensor S2 test paper rear end,, after the alignment of rear end, make the Width of paper align in advance by adjusting hurdle 10 along the paper carriage direction.Adjust plurality of sheets of paper one by one by repeating above-mentioned action.

Below, to two or two above paper transport the action describe.

Certain by being spaced apart between the paper of image processing system 1 output and the paper, between each operation also with certain interval output.When a piece of paper during, send the size of paper, number, transportation speed, signals such as processing form by image processing system 1 from image processing system 1 output.Sheet post-processing apparatus 2 is by accepting described signal, the paper number that decision is piled up, speedup point, speedup linear velocity, the point that drives in the wrong direction, the halt point when piling up.Described decision is the CPU execution by control circuit.

In the present embodiment, setting paper is X along the length of carriage direction, below to the length different occasions of paper along carriage direction, the action of transporting of paper describes.

(1) 182mm (lateral dimension of B5 paper)≤X＜257mm (longitudinal size of B5 paper) occasion describes with reference to Fig. 3 A-3D.

From image processing system 1 output a piece of paper P1, transporting roller 5 by the inlet roller 4 and first of sheet post-processing apparatus 2 transports, its rear end is by switching pawl 9, be transported to as shown in Figure 3A position (with the distance of tapping point 2h be α, this tapping point 2h is roughly corresponding with the front end of switching pawl 9).At this moment, according to the information that image processing system 1 sends, need make a paper P1 that the wins occasion of driving in the wrong direction, second transports roller 6 and the 3rd transports roller 7 and temporarily shuts down, and afterwards, begins reverse.At this moment, switch pawl 9 and play a role, a piece of paper P1 is imported among the pre-stored channel 2d, prestore.All the time energize to switching pawl 9 with weak pressure by elastomeric element, (as mentioned above, be subjected to by inlet roller 4 when switching pawl 9, transport the paper pushing that roller 5 transports, can be towards graphic counterclockwise revolution, guarantee paper is transported the space of transporting passage 2c by second time), when making paper by reverse transporting, open pre-stored channel 2d.A piece of paper P1 is transported into the pre-stored channel 2d fixed distance of transporting, by being configured in the sensor S2 test paper P1 that transports roller 5 carriage direction upstream sides, according to step-by-step counting or timing from sensor S2, ask for the period, when (is reversing when transporting the paper rear end, when the front end that transports as paper) arriving institute's allocation, stop to transport.

At this moment, shown in Fig. 3 B, folder is held in second holding part that transports roller 6, exposes several millimeters (distance beta in the present embodiment, is roughly 5 millimeters) from described holding part.In order to reduce the amount of exposing β as far as possible, at position configuration sensor S2, transport error as far as possible with minimizing near inversion point, can precision stop to transport of paper well.If can precision stop to transport of paper well, then the amount of exposing β also can minimize.Thus,, can reduce the deviation of paper, more fitly be stacked in bookbinding dish 14 when closing when transporting with next quires.

Shown in Fig. 3 C, transport roller 5 by first and transport second paper P2.Detection information according to sensor S2, if second paper P2 front end is transported to second upstream side that transports roller 6 holding parts, has the set a distance γ of institute with described holding part, the position of 20mm for example, at this moment, make second to transport roller 6, the three and transport roller 7, begin to transport second paper P2 transporting for second time among the passage 2c and a piece of paper P1 among the pre-stored channel 2d towards the direction revolution opposite with Fig. 3 B occasion.

At this moment, pawl 9 is switched in a piece of paper P1 pushing, still, switches pawl 9 and also can not hinder second paper P2 to move.

Shown in Fig. 3 D, a piece of paper P1 is transported once more to be clamped in the 3rd state that transports roller 7 holding parts.Therefore, with a piece of paper P1 front end state more outstanding than second paper P2 front end, two pieces of paper are discharged on the bookbinding dish 14 simultaneously.

Be arranged on bookbinding and coil 14 central portions, the discharge parallel with the paper carriage direction is with 13 to begin revolution, be arranged on a pair of discharge pawl 13a that discharges with being in symmetric position on 13,13b moves, and in the drawings, discharges pawl 13a and moves along the arrow B direction, by discharging the bar portion of pawl 13a, knock the front end of an outstanding side in the described two pieces of paper that are discharged from, make two pieces of paper fall into hurdle, rear end 11 together, adjust the skew of its paper carriage direction.Thus, can not influence the productivity and the bookbinding quality of image processing system 1 body, carry out post-processing.

More than, be the action of transporting of two pieces of paper occasion.According to the contents processing of bookbinding dish 14, need prestore two or more than the two pieces of paper, to shorten the time occasion between paper and the paper, by repeating above-mentioned action, can not reduce the per minute of body and print number (Copy Per Minute is designated hereinafter simply as " CPM "), carry out post-processing.

In addition, same as described above in the present embodiment, paper standby in pre-stored channel 2d, its time set that transports again is in distance second position towards upstream side 20mm of transporting roller 6.But the present invention is not limited thereto, also can make second to transport in roller 6 time for accelerations, and the front end of opening paper at N+1 does not enter second and transports under the prerequisite of roller 6 preferred as close as possible second position (for example 5mm) of transporting roller 6.Even N+1 opens paper front end and second and transports and be transported after roller 6 touches, as long as the paper front end is not damaged, or paper do not produce bending, and is just no problem.At this moment, described γ=0mm.

What Fig. 4 represented to carry out Fig. 3 transports the action occasion, the action time figure of second paper P2 front end and rear end.Fig. 5 represents to transport the action time figure that roller 5 and second transports roller 6 with the cooresponding inlet roller 4, the first of the time diagram of Fig. 4.

In Fig. 4, F represents the paper front end, and B represents the paper rear end, and the longitudinal axis is represented the position, and paper is transported into the distance of the receiving port 2a of paper transferrer 50, is unit with mm, and transverse axis is represented the time, be the paper front end entered the mouth sensor S1 detect after elapsed time, be unit with ms.In the present embodiment, paper transports the upstream side of the holding part of roller 6 along the paper carriage direction second, and distance temporarily stops the position as shown in Fig. 3 C for the T1 position of 20mm (from the position of inlet 600-20mm).At this moment, as shown in Figure 4, the inlet roller 4 and first transport roller 5 before being about to arrive standing time a period of time speedup (from 650mm/s to 950mm/s), be restricted to standing time the shortest.When transporting once more, driving inlet roller 4 and first transports roller 5 and turns round once more, and drive second and transport roller 6 and begin revolution from halted state, be transported to bookbinding and coil 14 sides second paper P2 and a piece of paper P1 are superimposed, make that by above-mentioned driving the transportation speed of each paper is 750mm/s.Driving inlet roller 4 and first, to transport roller 5 rotating drive sources identical, is driven revolution with identical time and transportation speed.Because the paper that transports does not produce bending, makes the relative position relation of paper front end F and rear end B remain necessarily.

Fig. 6 represent when second paper P2 front end F after second holding part that transports roller 6 stops, when being transported once more with a piece of paper P1, the action time figure of paper P2 front end and rear end.Fig. 7 represents the action time figure that transports roller 5 and transport roller 6 with the cooresponding inlet roller 4, the first of the time diagram of Fig. 6.

Fig. 6, parameter and Fig. 4 in 7, identical in 5.When second paper P2 front end F arrives as shown in Figure 6 second holding part that transports roller 6, during position shown in T2, paper temporarily stops to transport.Second transports roller 6 began to transport in the time that second paper P2 stops, simultaneously, with reference among the figure 4,5 explanation, in case what stop after the speedup transporting first transports roller 5 and begin to turn round once more from halted state with inlet roller 4, be transported to bookbinding and coil 14 sides second paper P2 and a piece of paper P1 are superimposed.On length velocity relation, make the stop position of second paper extend to second holding part that transports roller 6, in addition other transport action all with Fig. 4,5 explanation is identical.In the present embodiment, the stop position of second paper P2 and second transports the holding part of roller 6 apart from being 0mm.

(2) X 〉=257mm (longitudinal size of B5 paper) occasion describes with reference to Fig. 8 A-8D.

Paper is transported into, and X 〉=257mm occasion makes second to transport roller 6 towards the action of the direction shown in the arrow, pressure relief in advance.With first transport distance setting that roller 5 and the 3rd transports roller 7 than B5 longitudinal size short number mm in the scope of 10mm, therefore,, still can transport even remove second pressure that transports roller 6.In such state, if X＜257mm occasion, then transport roller 7 and carry out above-mentioned second and transport the action of transporting that roller 6 carries out by the 3rd, make its temporary transient storage.

That is to say, according to the signal that image processing system 1 sends, need make the paper occasion of driving in the wrong direction, X 〉=257mm occasion then at first removes second pressure that transports roller 6, and open holding part makes second to transport roller 6 and transport irrelevant with paper.In such state, from a piece of paper P1 of image processing system 1 output, transport roller 5 by the inlet roller 4 and first of paper transferrer 50 and transport, its rear end is by switching pawl 9, be transported to the position shown in Fig. 8 A (with the distance of tapping point 2h be α).The 3rd transports roller 7 temporarily stops to transport, and afterwards, turns round towards reverse the beginning.At this moment, switch pawl 9 and play a role, paper is imported pre-stored channel 2d, store.A piece of paper P1 is transported into this pre-stored channel 2d fixed distance of transporting, by being configured in the sensor S2 test paper P1 that transports roller 5 carriage direction upstream sides, according to step-by-step counting or timing from sensor S2, ask for the period, when (is reversing when transporting the paper rear end, the front end that transports as paper) arrive during fixed position, stop to transport.In the present embodiment, identical with X＜257mm occasion, set the paper front end and stop at the relative the 3rd same position that transports roller 7.That is to say that shown in Fig. 8 B, the paper front end exposes along the downstream of paper carriage direction from the 3rd holding part that transports roller 7, stop to transport for the position of β with described holding part distance.

Shown in Fig. 8 C, transport roller 5 by first and transport second paper P2.Detection information according to sensor S2, if second paper P2 front end is transported to the 3rd and transports the upstream side of roller 7 holding parts along the paper carriage direction, with described holding part apart from the γ position of 20mm for example, then the 3rd transport roller 7 towards beginning revolution with Fig. 8 B opposite states direction, transport to transport the paper P2 among the passage 2c for second time and being pre-stored in paper P1 among the pre-stored channel 2d.

Shown in Fig. 8 D, the front end of a piece of paper P1 is clamped in the 3rd holding part that transports roller 7 and is transported once more, and with a piece of paper P1 state leading than the front end of second paper P2, two pieces of paper are discharged on the bookbinding dish 14 simultaneously.As mentioned above, be arranged on bookbinding and coil 14 central portions, 13 revolutions are with in the discharge parallel with the paper carriage direction, are arranged on a pair of discharge pawl 13a that discharges with being in symmetric position on 13, and 13b moves, in the drawings, discharge pawl 13a and move,, knock the front end of an outstanding side in the two pieces of paper that are discharged from by discharging the bar portion of pawl 13a along the arrow B direction, make two pieces of paper fall into hurdle, rear end 11 together, adjust skew along the paper carriage direction.Thus, can not reduce the productivity and the bookbinding quality of image processing system 1 body, carry out post-processing.

More than, be the action of transporting of two pieces of paper occasion, identical with above-mentioned occasion, in order to shorten the time between paper and the paper, during the above paper of need prestore two or two,, can not reduce the CPM of body by repeating above-mentioned action, carry out post-processing.

Below, the pressure cancel system that driver train and second that second, third transports roller transports roller is described.

X 〉=257mm occasion is when prestoring, if do not remove second pressure that transports roller 6, then identical with X＜257mm occasion, the paper front end need be transported to second and transport the upstream side of roller 6 holding parts along the paper carriage direction, with described holding part distance be the position of 5mm, it is stopped.That is to say that long more its of paper transports apart from also long more, following a piece of paper can not enter second as early as possible and transport roller 6, can not corresponding high productivity.

In the example that above-mentioned (2) illustrate,, remove second pressure that transports roller 6 by making second to transport one of roller 6 (driven voller) and move towards the direction of arrow shown in Figure 8.But the present invention is not limited thereto, also can transport roller (driven roller 6a) pressure relief by moving another.Fig. 9 represents that second transports roller 6 and the 3rd and transport the driver train of roller 7 and the front elevation of pressure cancel system.Figure 10 represents that second transports driver train and the pressure cancel system lateral plan that roller 6 and the 3rd transports roller 7.Figure 11 represents that second transports roller 6 and the 3rd and transport the driver train of roller 7 and the action specification figure of pressure cancel system.

As Fig. 9, shown in 10,, drive second and transport roller 6a revolution by being delivered to idle pulley 20 from belt wheel 21 with 23 propulsive efforts with motor 22, second transports the driven revolution of roller 6a.The 3rd transports roller 7 directly by the band driving rotational.Idle pulley 20 and second transports roller 6a and is connected with connecting rod 24.Transport roller 6a when direction shown in the arrow of Fig. 9 moves when second, second to transport roller 6a be center steering with idle pulley 20.At this moment, transport roller 6a, make both sides' axle base not change because connecting rod 24 connects idle pulley 20 and second.

Make second to transport roller 6 and constitute by cam towards the travel mechanism that the direction of arrow moves.Cam is by belt wheel 26 as shown in figure 11, pin 26a, and bar 25 constitutes.Motor 27 is by being with the revolution of 28 driving pulleys 26, and described pin 26a is arranged on the side of belt wheel 26 with being kept upright, forms slotted hole 25a on the described bar 25, and described pin 26a can slippage in this slotted hole 25a, and the axle 6c that this bar 25 and second transports the driven roller 6a of roller 6 closes.In this constitutes, if by motor 27 driving pulleys 26 towards clockwise or counterclockwise revolution, then sell 26a along with this revolution along the driven slip of slotted hole 25a, make bar 25 drive described 6c and second and transport roller 6a, transport roller 6b relative to second and move towards vertical direction.Figure 11 A is pressurized state, and Figure 11 B is the pressure relief state.Specifically, along with the revolution of belt wheel 26, pin 26a is the driven revolution in center with the center of gyration of belt wheel 26, bar 25 with the cooresponding distance of the diameter of this rotary track, relatively driven voller 6b carry out near or the straight-line motion that breaks away from.The straight-line motion of driven roller 6a distance is to set according to transporting width of channel (with the distance of the vertical direction of paper).Thus, when the paper that prestores more than the B5 longitudinal size, can make second to transport roller 6 and do not move.

Figure 12,13,14 expressions remove Fig. 9, and the driver train and second that transports roller shown in 10,11 transports pressure cancel system other embodiment in addition of roller 6.Figure 12 represents to transport with Figure 10 the cooresponding the 2nd, 3 driver train of roller, by first synchronously band 23a the propulsive effort of motor 22 is delivered to second axle that transports roller 6, by second synchronously band 23b the propulsive effort of motor 22 is delivered to the 3rd axle that transports roller 7.

Figure 13 represents that second transports the oblique drawing of the pressure cancel system of roller.Figure 14 represents that second transports the front elevation of the pressure cancel system of roller.

At Figure 13, in 14, the pressure cancel system is by motor 27, worm screw 26a, and worm gear 26b, axis of revolution 26c, eccentric cam 26d, cam follower 26e, detection lug 26f and optical sensor 26g constitute.Drive described axis of revolution 26c revolution by worm gear 26b, described eccentric cam 26d is arranged on the two ends of axis of revolution 26c, described cam follower 26e is an axle with the second axle 6c that transports roller 6, constitute one, described detection lug 26f and the coaxial setting of described axis of revolution 26c, be semicircle, be used to detect rotary position, described optical sensor 26g carries out optical detection to the position of detection lug 26f.

In the above-described configuration, motor 27 is by being with 28 to drive worm screw 26a revolution synchronously, and worm gear 26b is along with the driven revolution of worm screw 26a.Worm gear 26b makes axle 26c and cam 26d turn round integratedly.Cam 26d is an eccentric cam, and when cam turned round, cam follower 26e and axle 6c moved thereupon, makes that the driven roller 6a that transports roller 6 with axis of revolution 6c one rotating second is approaching or draw back with the axle base of driven voller 6b.Thus, avoid second interference of transporting 6 pairs of paper of roller.

Have or not described detection lug 26f according to detecting, judge the rotary position of cam 26d.For example, when detection lug 26f interdicts the light path of being sent by optical sensor 26g, the second driven roller 6a that transports roller 6 breaks away from from the driven voller 6b with its subtend setting, when detection lug 26f does not interdict light path, makes the second driven roller 6a that transports roller 6 contact with driven voller 6b.By above-mentioned setting, can know that according to detecting output second transports the driven roller 6a of roller 6 and connecing from state of driven voller 6b.Perhaps with time of described detection lug 26f blocking light path as trigger circuit, set initial point, by with the drive pulse relation of motor, can easily grasp second the connecing of pair of rolls of transporting roller 6 from state.Driver train shown in Figure 12 and Figure 13, the action of 14 releasing mechanism is irrelevant.

By such formation, X 〉=257mm occasion when prestoring, can make second to transport roller 6 and do not move.

Figure 15 A-15C represents the diagram of circuit of the controlled step of above-mentioned action.CPU32 is the work area with RAM, carries out this controlled step according to the program that is stored in ROM.

At step S1, each controlling element is carried out initialization.

At step S2, the change action of roller 6 is transported in execution second.

At step S3, transport roller 6 by step S2 with second and switch to shipping situation, afterwards, whether detect inlet sensor S1 connects, if detect sensor S1 for connecting ("Yes" of step S3), then enter step S4, do not have to connect ("No" of step S3), then return step S3 if detect sensor S1.

At step S4, driving inlet roller 4 and first transports roller 5 and transports.

At step S5, whether detection is configured in the sensor S2 that bifurcated pawl 2e and first transports between the roller 5 and connects, if sensor S2 then enters step S6 for connecting ("Yes" of step S5), if sensor S2 does not have to connect ("No" of step S5), then return step S5.

At step S6, detect whether the paper that prestores among the pre-stored channel 2d is a piece of paper,, then enter step S7 if the paper among the pre-stored channel 2d is a piece of paper ("Yes" of step S6), if the paper among the pre-stored channel 2d is not a piece of paper ("No" of step S6), then enter step S16.

At step S7, driving second is transported roller 6, the three and is transported roller 7, makes paper transport passage 2c along second time and moves.

At step S8, the paper rear end is by sensor S2, and whether detecting sensor S2 disconnects, if sensor S2 then enters step S9 for disconnecting ("Yes" of step S8), if sensor S2 connects ("No" of step S8), then returns step S8.

At step S9, whether the test paper rear end is transported to the downstream from the free end (tapping point 2h) that switches pawl 9, with tapping point 2h distance be the position of α, if being transported to tapping point 2h distance, the paper rear end is the position of α ("Yes" of step S9), then enter step S10, otherwise ("No" of step S9) returns step S8.

At step S10, be transported to the downstream in the paper rear end from the free end that switches pawl 9, with tapping point 2h distance be the time of alpha position, make first to transport roller 5, the second and transport roller 6, the three and transport roller 7 and stop to transport.

At step S11, confirm that first transports roller 5, whether second transports roller 6, the three transports roller 7 and stops, if confirm that first transports roller 5, second transports roller 6, the 3rd transports roller 7 stops (step S11 "Yes"), then enters step S12, otherwise ("No" of step S11), then return step S11, rejudge.

At step S12, make second to transport roller 6, the three and transport roller 7 and reverse.

At step S13, transport roller 6 by reversing second, the 3rd transports roller 7, judge whether a piece of paper front end is positioned at second downstream along the paper carriage direction of transporting roller 6 holding parts, with holding part distance be the position of β, if judgement a piece of paper front end arrives described position ("Yes" of step S13), then enter step S14, otherwise ("No" of step S13) then returns step S13.

At step S14, make second to transport roller 6, the three and transport roller 7 and stop.Transport roller 6, the three and transport transporting of roller 7 by stopping second, make a paper rear end of winning in the standby of pre-stored channel 2d side.

At step S15, judge that second transports roller 6, whether the 3rd transports roller 7 stops, if judge that second transports roller 6, the three and transport roller 7 and stop ("Yes" of step S15), then return step S3, a piece of paper is transported down in wait, if judge that second transports roller 6, the three and transport roller 7 and do not stop ("No" of step S15), then return step S15.

In addition, not a piece of paper as if what prestore in step S6 judgement, but second paper, or two above occasions ("No" of step S6), then enter step S16.At step S16, judge whether the paper front end is positioned at second upstream side that transports roller 6 holding parts, with the holding part distance be the position of γ (for example 20mm).If the paper front end is positioned at second upstream side that transports roller 6 holding parts, with holding part distance be the position ("Yes" of step S16) of γ, then enter step S17, otherwise ("No" of step S16), return step S16, continue to judge, be positioned at second upstream side that transports roller 6 holding parts up to the paper front end, with the holding part distance be the position of γ.

At step S17, making wins transports roller 5 and stops.

At step S18, judge that first transports roller 5 and whether stop.If judgement first is transported roller 5 and is stopped ("Yes" of step S18), then enter step S19, otherwise ("No" of step S18) then returns step S18, continue to judge, transport roller 5 up to first and stop.

At step S19, judge whether to require to prestore.If the result prestores for requiring ("Yes" of step S19), then enter step S20, do not require to prestore ("No" of step S19) if be judged as, then enter step S21, driving first is transported roller 5, the second and is transported roller 6, the three and transport roller 7, and distributing roller 8.

At step S20, drive first and transport roller 5, the second and transport roller 6, the three and transport roller 7, enter C, promptly return step S8, the processing that steps performed S8 is later.

At step S21, drive first and transport roller 5, the second and transport roller 6, the three and transport roller 7, and distributing roller 8.Then, enter A, promptly return step S3, the processing that steps performed S3 is later.

As second subprogram of transporting roller 6 change actions, its step is represented at Figure 15 C.

Specifically,, detect paper, judge whether to be X 〉=257mm, if X 〉=257mm ("Yes" of step S201) then enters step S202, if X＜257 ("No" of step S201) then enter step S203 by image processing system 1 input at step S201.

In step 202, X 〉=257mm transports roller 6 with second and switches to disengaged position, does not transport the example of for example above-mentioned (2).So CD-ROM drive motor 27 makes the second driven roller 6a that transports roller 6 break away from driven voller 6b, make a pair of second to transport roller 6 and be in paper and transport irrelevant state.Use the 3rd to transport second function of transporting roller 6 in the diagram of circuit that roller 7 replaces Figure 15 A.Therefore, from step S3, use the 3rd to transport that roller 7 is carried out and second transport the identical processing of roller 6.

At step S203, because X＜257mm, therefore, CD-ROM drive motor 27 makes second driven roller 6a and the driven voller 6b that transports roller 6 join, and exerts pressure, and is able to transport the state that roller 6 transports paper by second.The size of paper was delivered letters by image processing system 1 before transporting as mentioned above.

In the present embodiment, be benchmark with the longitudinal size of B5, as X＜257mm occasion in (1), and as (2) in X 〉=257mm occasion, the action of transporting roller 6,7 is switched, with the stop position of control paper.But this only exemplifies, and the present invention is not limited thereto.For example, can document paper longitudinal size (Legal longitudinal size 355.6mm) be benchmark also, be more than the document paper longitudinal size according to paper size, or not enough, carry out identical control with above-mentioned (1) and (2) middle record.If paper is along the curtailment document paper longitudinal size of carriage direction, then transporting roller 6 to second exerts pressure, make that being clamped in second paper that transports roller 6 stops to transport, if paper is of a size of more than the document paper longitudinal size along carriage direction, then remove a pair of second pressurized state that transports roller, make that being clamped in the 3rd paper that transports roller 7 stops to transport.Identical with described in this first embodiment of other controlled step in addition.

According to present embodiment, transport roller according to what the size Selection of paper reversed.That is to say, according to the size of paper along carriage direction, to give transport force transport roller and the described distance that first, second transports between the tapping point of passage changes, perhaps, a paper of winning is reversed when transporting, according to the size of paper along carriage direction, its stop position of conversion (the long paper of size more the position in downstream stop).Therefore, can shorten making paper reverse to transport as far as possible, or paper is transported to the time of bookbinding dish side, even, also can make and transport the pitch time cripeturaization between the paper along the long paper occasion of the size of carriage direction, can to form high speed corresponding with image.

Second embodiment

In above-mentioned first embodiment, the occasion that prestores makes second paper temporarily stop at second and transports the holding part of roller 6, or stops at the position of the upstream side of this holding part with institute's set a distance.With a piece of paper P1 that prestores among the pre-stored channel 2d and superimposed being transported in the bookbinding dish 14 of second paper P2 that stops at described position.When bookbinding dish 14 when handling the two pieces of paper of first operation, make a piece of paper of second operation not be transported to bookbinding and coil 14 sides.On the other hand, if temporarily stop motor, when driving its running once more, rise to constant speed drive and need spend certain hour.Therefore, as mentioned above, because paper is short at interval, before descending a piece of paper to transport, motor can not rise to constant speed drive sometimes.So, in the present embodiment, do not make second paper stop, but with fixed timed deceleration, close with first quires and to transport.

In the present embodiment, do not make back row paper temporarily stop, but the conversion haulage time, it is identical with the formation put down in writing among first embodiment that in addition other constitute roughly, here, only this difference described.

Figure 16 represents the instruction diagram of paper transferrer 50 actions that present embodiment relates to.Figure 17 represents to allow the mechanism of paper bending.

Figure 16 A represents that a piece of paper P1 rear end temporarily keeps out of the way (storage) in pre-stored channel 2d, and its front end is in second downstream of transporting roller 6 holding parts, with the holding part distance be the position of β, in the present embodiment, this distance beta is roughly about 5mm, is halted state.Second paper P2 do not transport above roller 6 holding parts second, or holding part stops occasion, shown in Figure 16 B, transport roller 6 holding parts or arrive time of described holding part when second paper P2 is about to arrive second, make second transport roller 6 from halted state restart the revolution, and make its acceleration, up to having same line speed with second paper P2, during this period, because the front end of second paper P2 is subjected to second restriction of transporting roller 6, make that being positioned at second part of transporting the upstream side of roller 6 holding parts produces crooked.Only can transport several paper owing to set the space of paper-delivering path, therefore, in transporting passage, produce second paper P2 of bending,, then make to transport to produce the paper obstruction in the passage 2c if the end is further transported forward thereafter.

So, in the present embodiment, shown in Figure 16 C, in transporting passage 2c, be formed for eliminating bending, promptly allow crooked space.Specifically, shown in the lateral plan (Q direction view among Figure 16 A) of Figure 17, this allows bending mechanism by guide plate 100, coil spring 101, and the block 102 of guide plate 100 constitutes.Described guide plate 100 is positioned at the upstream side of paper carriage direction, by bolster 103 supportings, can rotate, and described coil spring 101 is the center with bolster 103, transports passage 2c side at second time and all the time guide plate 100 elasticity is composed gesture.Described allow bending mechanism be arranged on second transport roller 6 transport passage 2c along second time of carriage direction upstream side.Limit position by 102 pairs of described guide plates 100 of described block, and the formation width is the gap about 2mm, guarantees as transporting passage.

In having second embodiment of said mechanism, shown in Figure 16 C, for example, second paper P2 is clamped in second holding part that transports roller 6, drives this once more and second transports roller 6 revolutions, and quicken, arrive decide transportation speed during, described guide plate 100 is because of the bending of second paper P2, and towards the reversing sense revolution of arrow Q, the passage width that transports of passage 2c is transported in increase by second.Like this, second paper P2 can not transport second and produce the paper obstruction in the passage 2c, transports roller 6 by second and transports, and further transports roller 7 and exit roller 8 through the 3rd, is discharged to bookbinding dish 14.

Figure 18, the time diagram that above-mentioned action is carried out in 19 expressions, expression makes inlet roller 4 and first transport roller 5 temporarily to slow down, and afterwards, with second to transport the driving again of roller 6 synchronous, makes its acceleration.Figure 18 represents to carry out the action occasion of Figure 16, the front end of second paper P2 and the opening time of rear end.Figure 19 represents to transport the action time figure that roller 5 and second transports roller 6 with the cooresponding inlet roller 4, the first of the time diagram of Figure 18.

In Figure 18, F represents the front end of paper, and B represents the rear end of paper, and the longitudinal axis is represented the position, with the distance of the receiving port 2a of paper transferrer 50, is unit with mm promptly, and transverse axis is represented the time, is unit with ms.In the present embodiment, the upstream side along the paper carriage direction of roller 6 holding parts is transported in paper arrival second, and with the T3 position (from the position of inlet 600mm-20mm) that described holding part distance is 20mm, beginning drives second once more and transports roller 6.At this moment, as shown in figure 19, be about to arrive T3 before the time, make inlet roller 4 and first transport roller 5 and temporarily quicken (accelerating to 950mm/s), be suppressed to minimum degree the loss of time during with deceleration from 650mm/s at paper.Then, make inlet roller 4 and first transport roller 5 and decelerate to 270mm/s (T3 position), at last,, accelerate to 750mm/s from 270mm/s at short notice with second to transport the driving again of roller 6 synchronous from 950mm/s.In the meantime, before second transports roller 6 and reaches 750mm/s, during T4, little by little eliminate described bending, during T5, the paper rear end is by first holding part that transports roller 5, fully eliminate crooked, win a paper P1 and second paper P2 are overlaped, be transported to first second time of downstream of transporting roller 5 holding parts and transport passage 2b, 2c.Therefore, from second the paper P2 and second holding part that transports roller 6 (starting at the position of 600mm from the inlet) beginning of joining, to surpass described during T5, though paper is crooked, do not produce obstruction, can overlap and transport.

This time diagram is to make inlet roller 4 and first transport roller 5 temporary transient deceleration occasions, but present embodiment is not limited to this, and the occasion that do not underspeed fully also can be used above-mentioned mechanism shown in Figure 17 correspondence.But, need with second transport roller 6 transport again the time opening be set at than the time shown in Figure 19 more earlier.Controlled step itself is also identical with the diagram of circuit of Figure 15 among first embodiment, but, if cooperate with the time diagram of Figure 19 with Figure 18, then need not stop first and transport roller 5 at step S17, and make its deceleration, at step S18, when described first transports roller 5 and decelerate to 270mm/s, make its acceleration, and drive second once more and transport roller 6 and the 3rd and transport roller 7.

Other each several parts formations that are not specifically described in the present embodiment are identical with the formation among first embodiment, and have identical function.

According to present embodiment, quires is closed when transporting, do not need to make second paper to stop, therefore, comparing with first embodiment, more can realize the haulage time cripeturaization between paper and the paper, realize that image forms high speed.

The 3rd embodiment

Carry out the processing occasion that prestores described in first embodiment, may add large-sized paper in the paper of general size sometimes, processing occasion together prestores., prestore with transporting the roller for this reason, also need to be provided with prestoring of large scale paper special use with transporting roller except general size paper is set.For cost-cutting, adopt by same motor driven to prestore with the formation of transporting roller for described two kinds.In this constitutes, if transport the linear velocity processing that prestores with common, when one stacker that then will prestore is discharged, before this stacker rear end is transported roller by large scale with prestoring, a piece of paper P1 ' of next operation enters general size paper and prestores with transporting roller, prestore and prestore soon with the transportation speed that transports roller that transports the roller upstream side than this two couple owing to be positioned at described general size paper, so that produce the inconsistent problem of linear velocity with the transportation speed that transports roller.If cooperating this two couple to prestore transports with the linear velocity of transporting roller, after waiting for that the rear end of paper is transported roller by large scale with prestoring in advance, change next operation a piece of paper P1 ' transport route, then, cause it to have little time to keep out of the way towards pre-stored channel because the rear end also no show general size paper of this a piece of paper P1 ' prestores with transporting roller.

Present embodiment can corresponding the problems referred to above, and the sheet post-processing apparatus 2 that relates in the present embodiment identical with described in first embodiment omitted explanation here.

Shown in Figure 20 A, a piece of paper P1 rear end of first operation is by switching pawl 9.Shown in Figure 20 B, make that transporting roller 6,7 reverses transports (drive source that transports roller 6,7 is identical), is transported to a piece of paper P1 as the pre-stored channel 2d that stops passage.Shown in Figure 20 C, when a piece of paper P1 front end transports roller 6 by second or is clamped in second when transporting the holding part of roller 6, second transports roller 6 stops to transport, and a paper P1 that wins is rested in the pre-stored channel 2d, prestores.Then, shown in Figure 20 D, second paper P2 carried out same the transporting with a piece of paper P1,, touch with the roller 6 that transports that stops by switching pawl 9.Shown in Figure 20 E, when transporting roller 6 and touch, transport roller 6 beginnings and just change, a piece of paper P1 and second superimposed transporting of paper P2 at second paper P2.In advance according to transporting passage and transporting linear velocity, ask for from detect second paper P2 front end by the paper detection sensor S2 that is configured in the pre-stored channel upstream side, arrive the time of transporting roller 6 to a piece of paper P1 front end, transport the time that roller 6 beginnings are just being changeed according to this time set.Here, if be detained the paper number, then the paper bundle is transported to pre-stored channel 2d, the action that paper is detained by being decided the following occasion of number.Decide the number occasion if the paper number that prestores reaches institute, then the paper bundle pressed this state, arrange to bookbinding dish 14 by exit roller shown in Figure 18.Be transported into first time and transport passage 2b when the paper P1 ' of second operation transports roller 5 by first, second when transporting passage 2c, the paper P1 of first operation, and P2 is transported roller 7 by the 3rd and transports, shown in Figure 20 F.The paper P1 ' of second operation enters second and transports roller 6, as Figure 20 G, shown in the 20H by switching pawl 9.

Here, above-mentioned haulage time is described.By the linear velocity of transporting as shown in figure 21, the paper handled of will prestoring is transported to the pre-stored channel 2d as the paper incorporating section, carries out this processings with the common linear velocity of transporting, up to the number arrival that prestores decide number till.

Figure 21 represents to make two pieces of paper to rest on pre-stored channel 2d, with overlap a routine linear velocity figure when transporting of the 3rd paper P3.When the paper that stops arrive when deciding number, when converging with the 3rd paper P3, superimposed transporting as first operation, is discharged to bookbinding dish 14.Then, a piece of paper P1 ' of second operation being transported into second time transports among the passage 2c.Here, prestore after the stacker of first operation to transport linear velocity usually, if transport a piece of paper P1 ' of second operation immediately, when one stacker of first operation that then will be detained was discharged, its rear end was by transporting before the roller 7, and a piece of paper P1 ' of described second operation enters and transports roller 6, be positioned at second roller that transports that transports roller 6 upstream sides, the roller 4 and first that promptly enters the mouth transports the linear velocity ratio that transports of roller 5, and to transport roller 6,7 fast, causes linear velocity inconsistent.If all by transporting roller 6,7 jogging speed is transported, and waits for that roller 7 is transported in a stacker rear end of first operation by prestoring, and makes a piece of paper P1 ' of second operation turn to, but since this first P1 ' rear end also no show transport roller 6, cause it to have little time to keep out of the way towards pre-stored channel 2d.

In order to address the above problem, only a piece of paper P1 ' to described second operation uses and the common different linear velocity of linear speed, transports.Stopping the time that passage 2d converges, stop to transport a piece of paper P1 ' of second operation in a stacker of first operation, with the actions such as (punch block is not expressions in Figure 20, represents) of for example boring a hole in Figure 23.When a stacker of first operation was discharged from stopping passage 2d, a piece of paper P1 ' of second operation transported roller 6 by transporting roller 5, entering.As mentioned above, it is identical to transport the drive source of roller 6,7.Therefore, a piece of paper P1 ' of second operation enter transport roller 6 before, to transporting roller 6,7 phase steady accelerations, accelerate to discharge the discharge linear velocity of a stacker of first operation.Transport roller 7 and transport a stacker of first operation, transport a piece of paper P1 ' that roller 6 transports second operation, both transport with the speed that equates.When the rear end of a stacker of first operation by transporting roller 7, when a piece of paper P1 ' rear end of second operation is passed through to switch pawl 9, transport roller 6 and shut down, and begin to reverse, make a piece of paper P1 ' of second operation turn to route, be transported to pre-stored channel 2d and be detained.In the speed line chart of Figure 21, conclusively show and transport roller 4,5,6,7 and switch relation between the pawl 9.In order to ensure productivity, be necessary the paper of different size is carried out the control of different linear velocities.

Other each several parts formations that do not describe are identical with the formation among first embodiment, have identical function.

In the present embodiment, identical even the paper that prestores transports the drive source of roller 6,7, also can avoid producing the problem of transporting between paper and the paper, handle.In addition, control, can keep the efficient of each size paper by each size paper being carried out the different linear velocities of transporting.

The 4th embodiment

Use pre-stored channel 2d to stop several paper occasions because the counter transport paper feeding rests on it and departs from original other passages that transport passage, therefore, with the length setting of pre-stored channel for can stop maximum sized paper.But, if the usage frequency of upperlimit paper is low, then consider equipment miniaturization and simplification, mostly be the space of waste with the shared space of the cooresponding passage of maximum sized paper.Present embodiment can address the above problem, and what illustrate among the formation of sheet post-processing apparatus 2 itself and first embodiment is identical, omission explanation here.

According to Figure 22 A-22E and Figure 23 A-23E, the formation of the pre-stored channel 2d of the sheet post-processing apparatus 2 that the expression fourth embodiment of the invention relates to.

In the present embodiment, transport passage 2c when a piece of paper P1 is transported to second time, its rear end is positioned at second when transporting the holding part of roller 6, stops second and transports transporting of roller 6, shown in Figure 22 A.Make second to transport roller 6 reverses, a piece of paper P1 is transported among the pre-stored channel 2d, shown in Figure 22 B.When second paper P2 is transported into when transporting passage 2b first time, shown in Figure 22 C, a piece of paper P1 rests on pre-stored channel 2d.Shown in Figure 22 D, second paper P2 is by switching pawl 9.Shown in Figure 22 E, a piece of paper P1 among itself and the pre-stored channel 2d is overlaped, a piece of paper P1 and second paper P2 are transported to bookbinding dish 14 overlappingly.

Figure 23 A-23E represents to take in the pre-stored channel 2d of various sizes paper, and it is provided with the guide plate B1 that can load and unload.4a among the figure, 4b represent two pairs of inlet rollers.For the miniaturization purpose of implement device own, the space situations of dwindling mechanism might can't guarantee enough big pre-stored channel.For example,, punch block is set between the 4b, in such Device for treating paper (with reference to figure 23B),, then interferes with punch block if guarantee enough big pre-stored channel 2d at inlet roller 4a.

So, use being used to shown in Figure 23 A stored the pre-stored channel 2d of small size paper (till the lateral dimension from LTY to the letter paper), when storage large scale paper occasion, at pre-stored channel 2d the guide plate B1 (shown in Figure 23 B) that large scale paper is detained is set, to guarantee the passage length of pre-stored channel 2d.The special size paper occasion that need prestore by punch block 3 is unloaded, is provided with special size paper with pre-stored channel B2 (shown in Figure 23 C), to guarantee the length of pre-stored channel 2d in the space that obtains.Further,, the sliding type guide plate B3 that can extract out is set, to guarantee the length (as Figure 23 D, shown in the 23E) of pre-stored channel 2d at pre-stored channel 2d according to the size of the paper that prestores.In the present embodiment, at 4a, the punch block 3 between the 4b can be provided with as required.

Other do not have the each several part of explanation constitute with first embodiment in identical, have identical functions.

Like this, if the paper incorporating section that prestores that can load and unload is set, the device of miniaturization then can be provided, and can changes by easy transfer pair device according to user's application target.

The 5th embodiment

A piece of paper P1 rear end stops immediately by switching pawl 9, after this, is reversed and is transported to pre-stored channel 2d.If CPM increases, then the pitch time between paper and the paper shortens.Reverse is transported first paper P1 and is entered fully after the pre-stored channel 2d, and second paper P2 arrives at once and switch pawl 9, makes that switching pawl 9 changes direction.

If the pitch time between paper and the paper shortens, or the CPM of image processing system 1 increases, and then because the direction of pawl 9 is switched in second paper P2 conversion, a piece of paper P1 that causes reversing is transported into first time and transports passage 2b, contact with second paper P2, produce and block the possibility change greatly.If towards the front bending of switching pawl 9, then further increasing, the rear end of a piece of paper P1 produces the danger that paper blocks.Transporting controls such as carrying out speedup midway, though can be at the pitch time of to a certain degree striving between paper and the paper, also limited.

So, in the present embodiment, near the downstream of switching pawl 9, the platen parts are set, to solve the problem that is produced when CPM increases.Identical among the formation of sheet post-processing apparatus 2 itself and first embodiment, omission explanation here.

In Figure 24, when after a piece of paper P1 is by switching pawl 9, stopping immediately, paper P1 rear end is pressed towards the guide plate 2d1 thruster that constitutes pre-stored channel 2d by flexure strip 110.If transport with described pushing state reverse, even the state of pawl 9 is switched in conversion, a piece of paper P1 also can be transported to pre-stored channel 2d along guide plate 2d1.Also can use the claw-like parts to replace described flexure strip 110.No matter use any platen parts,, just can reduce producing the danger of blocking as long as paper P1 rear end can be pressed towards guide plate 2d1 thruster.When a piece of paper P1 stops, if its rear end is positioned at the position by flexure strip 110, then when reverse is transported, the downside that paper P1 may enter flexure strip 110 causes obstruction, therefore, not only need flexure strip 110 is configured in the position that paper P1 rear end stops, also needing to be configured in can be reliably with the position of paper P1 towards guide plate 110 thrusters pressure.As the material of flexure strip 110, can use the materials such as polyester that for example have flexible.

In addition, also can form as shown in Figure 25 formation.In the present embodiment, switch pawl 9 front ends and the passage that transports that transports between the roller 6 is "＞" sigmoid.Form described "＞" sigmoid by the opposition side at pre-stored channel 2d, promptly transport passage and guarantee the θ angle state, make a piece of paper P1 that passes through to switch pawl 9 because self rigidity becomes straight, when reverse was transported, its rear end entered pre-stored channel 2d easily.Therefore, passing through to switch pawl 9 when a piece of paper P1 rear end, be reversed when transporting, even pawl 9 is switched in second paper P2 tip pushing, open first time and transport passage 2b, can not conflict with following a piece of paper P2 front end or with switching pawl 9 front ends easily in a piece of paper P1 rear end yet.

Like this, CPM increases occasion, and by the pliability parts are set, pushing with paper P1 rear end guiding pre-stored channel 2d, can solve the problem that CPM increases generation with the pushing state by switching a piece of paper P1 rear end of pawl 9.In addition, transport passage opposition side bending towards pre-stored channel 2d between the roller 6 by make switching pawl 9 with transporting, pre-stored channel 2d can easily lead the paper rear end.

The 6th embodiment

In the various embodiments described above, make paper transport for example pre-stored channel 2d switching channel occasion of passage towards reverse, paper need be transported into or transport the parts that transport that respectively transport passage.But these parts may cause increasing driver train, and control and treatment becomes complicated.On the other hand,, not only handle the paper of same size, also have various sizes are mixed as handling the object occasion carrying out in the post-treatment procedures such as bookbinding and perforation by sheet post-processing apparatus 2.For this reason, the paper of different size is folded the processing occasion as one, even the size difference also needs to make the log sheet rearward end alignment as the post-processing reference position.Present embodiment can corresponding above-mentioned needs.Below, be elaborated with reference to the accompanying drawings.Identical among the formation of paper transferrer 50 itself and first embodiment, omission explanation here.

Figure 26 is used to represent to keep the formation of paper rear end.Be arranged on and switch near transporting roller 6 and can the carry out positive and negative revolution pawl 9, therefore, it is as the positive and negative parts that transport, has the function that to select shipping situation, described shipping situation comprises: paper P is transported to the state that is transported into that transports for second time in the passage 2c, and make and transport the state that transports that passage 2c transports towards pre-stored channel 2d by second time by paper P switching channel.

On the other hand, in pre-stored channel 2d, be provided as the flexure strip 111 that constitutes by elastomeric element of the parts that keep the paper rear end, keep keeping out of the way paper P rear end in pre-stored channel 2d by switching channel.As shown in figure 26, the free end of flexure strip 111 can join with pre-stored channel 2d inner face, keeps friction.

In addition, as the parts that keep paper P rear end, as shown in figure 27, also can use can be on one side with paper P after end in contact, on one side with its rotatable parts that clamp 112.With reference to Figure 29, wherein, symbol L/2 represents the paper length of half along its length, and the central part that makes its length direction is in falling the summit of " U " word portion, to keep towards the weight balancing of the paper of pre-stored channel 2d internal conversion passage.Keep out of the way by the paper that falls among the pre-stored channel 2d that " U " word shape circuitous channel constitutes, if the central portion of its length direction is not or not the described top of " U " word shape, but be biased in the rear end side occasion, by these flexure strip 110 or rotatable parts 112, can prevent paper P landing owing to length direction two ends weight overbalance as the rear end holding member.Specifically, use flexure strip 111 occasions,, can keep being the paper P rearward end of deflected by simple structure.Use rotatable parts 112 occasions,, can avoid paper P rearward end to produce flexural deformation by skew with low loading condition absorption paper P back-end location.

On the other hand, set the shipping situation of transporting roller 6 by control part shown in Figure 28 200.Described control part 200 is used to control the image formation treatment step of image processing system 2.As the formation relevant with present embodiment, aspect input, be connected with guidance panel 201, inlet sensor S1 (not expression among Figure 28), transport for first time among the 2b of road, the rear end detecting sensor S2 of institute's allocation etc. is passed through in test paper P rear end, at output facet, be connected with the drive division of bookbinding portion 12, transport the drive division of roller 6 etc.

In control part 200, be transported into the time of aliging with second paper rear end in a piece of paper rear end of transporting passage 2c for second time, the bookbinding portion 12 with paper overlaps and delivers to after-treatment device 2 controls.

The control of described control part 200 can be enumerated following several occasion.

(1) by small size, large-sized order, with paper P1, P2 is transported into second time and transports passage 2c occasion.

(2) by small size, large-sized order, and, except that above-mentioned a piece of paper P1 and second paper P2, will be transported into second time with the 3rd the paper P3 of measure-alike (large scale) of above-mentioned second paper and transport passage 2c occasion.

(3) by small size, large scale, undersized order, with paper P1, P2, P3 are transported into second time and transport passage 2c occasion.

(4) by large scale, small size, large-sized order, with paper P1, P2, P3 are transported into second time and transport passage 2c occasion.

When pressing said sequence execution control, in control part 200, the size of transporting paper among the passage 2c second time by guidance panel 201 input, simultaneously, from rear end detecting sensor S2 output detection signal, set the gyratory directions that transports roller 6 according to this detection signal, revolution amount, and the switching setting of carrying out clamping shipping situation or non-clamping shipping situation.

Below, the above-mentioned occasion of respectively controlling is described respectively.

Figure 29 represents to control the instruction diagram of mobile status of the paper of occasion (1).In Figure 29 A, if a piece of paper P1 rear end is transported into second time and transports passage 2c, by switching pawl 9, then setting and transporting roller 6 is clamp position, simultaneously, switches and transports roller 6,7 gyratory directions, direction opposite when making its court and transporting a piece of paper P1 is turned round, and a piece of paper P1 is moved towards pre-stored channel 2d, shown in Figure 29 B.

According to the revolution amount of transporting roller 6,7, make the central part of length direction of a piece of paper P1 of turning to towards pre-stored channel 2d in falling the summit of " U " word portion.Specifically, a piece of paper P1 is 210mm (minor face that is equivalent to an A4) occasion along the length of carriage direction, shown in L/2 among Figure 29 B, is the boundary line to fall the summit of " U " word portion, along the equal in length at the both ends of carriage direction.Thus, make to keep out of the way to keep balance, avoid occurring the state of landing along the weight at carriage direction both ends at a piece of paper P1 of pre-stored channel 2d.In addition, even move a piece of paper P1 rear end, arrive and to make its weight non-equilibrium site occasion along the carriage direction two ends, by Figure 26, the rear end that the holding member 111,112 shown in 27 keeps a piece of paper P1 also can prevent its landing.

On the other hand, when being in, a piece of paper P1 keeps out of the way internal state at pre-stored channel 2d, second the paper P2 bigger than this a piece of paper P1 size is transported into when transporting for second time in the passage 2c, to transport second of parts as positive and negative amount of movement transports roller 6 and switches to non-clamp position, make it possible to transport second paper P2, shown in Figure 29 C.In second paper P2 being transported into the process of transporting in the passage 2c for second time, make from the position of a piece of paper P1 rear end that pre-stored channel 2d is exported once more with in the time of transporting the position consistency of second paper P2 rear end of moving in the passage 2c for second time, promptly, shown in the symbol L1 among Figure 29 D, transporting the length of roller 6 to a piece of paper P1 rear ends from second equates with becoming from second length of transporting 6 to second paper P2 rear ends of roller, at this moment, transport roller 6 with second and switch to clamp position, a piece of paper P1 is transported with second paper P2 clamping from non-clamp position.

By above-mentioned steps, even a piece of paper P1 and the size different occasions of second paper P2 along carriage direction also can make its state in the back-end location unanimity transport towards bookbinding dish 14.Thus, in bookbinding dish 14, even the size difference of paper, its rear end is in consistent state, and therefore, even small size paper below, the large scale paper relative with knocking roller also can carry out post-processing with both states of rear end alignment in the above.And, keep out of the way towards pre-stored channel 2d by transporting roller 6 driving a piece of paper P1, and it is exported once more from pre-stored channel 2d, therefore, can not need to use the parts that transport at pre-stored channel 2d in the past.

Figure 30 represents to control the instruction diagram of the paper mobile status of occasion (2).Figure 30 A represents to continue the step of state shown in Figure 29 D.In Figure 30 A, if shown in Figure 29 D, make the position consistency of win a paper P1 and second paper P2 rear end, transport roller 6 with paper P1 by second, superimposed being transported to of P2 transported for second time in the passage 2c, then shown in Figure 30 B, transports roller 6 by reverse, 7, win a paper P1 and second paper P2 are turned to towards pre-stored channel 2d.Paper P1, P2 is in the state of keeping out of the way in pre-stored channel 2d, transports passage 2c if be transported to second time with measure-alike large-sized the 3rd the paper P3 of second paper P2, then transports roller 6 with second and switches to non-clamp position, carry out transporting of the 3rd paper P3, shown in Figure 30 C.On the other hand, if detect the 3rd paper P3 rear end by rear end detecting sensor S2, detect constantly from this, making the position of the 3rd paper P3 rear end and the time of the position consistency of a piece of paper P1 that is exported once more from pre-stored channel 2d and a piece of paper P2 rear end, switch to clamp position by transporting roller 6, make paper P1, P2, P3 transports towards process disk 14 with the state of back-end location unanimity, shown in Figure 30 D.

Figure 31 represents above-mentioned Figure 30 A-30D controlled step diagram of circuit (the wherein step of " little-big-little " expression control occasion (3)).In Figure 31, the processing from step S21 to step S24 is the processing to a piece of paper and second paper.

At step S21, make a paper P1 that wins consistent with second paper P2 back-end location.

At step S22, whether the carriage direction size of judging the 3rd paper P3 is greater than second paper P2, if the size of judging the 3rd paper P3 is greater than second paper P2 ("Yes" of step S22), then temporarily stop to transport, be equal to or less than second paper P2 ("No" of step S22) if judge the carriage direction size of the 3rd paper P3, then enter step S23.

At step S23, transport roller 6 with second and switch to clamp position, transport a piece of paper P1 and second paper P2 that back-end location becomes consistent state.

At step S24, a piece of paper P1 and second paper P2 are reversed and are transported to pre-stored channel 2d, prestore.

At step S25, whether the carriage direction size of judging the 3rd paper P3 is less than second paper P2, if the 3rd paper P3 is less than second paper P2 ("Yes" of step S25), little-big-little order for described control occasion (3), processing enters step S28, otherwise ("No" of step S25) for little-big-big 1 the order of described control occasion (2), handles entering step S26.

At step S26, transport roller 6 with second and switch to non-clamping shipping situation, the state shown in Figure 30 C.

At step S27, judge the 3rd paper P3 rear end and a piece of paper P1, second paper P2 back-end location becomes the consistent time, determine the 3rd paper P3 rear end whether with a piece of paper P1, the rear end unanimity of second paper P2, if judge the 3rd paper P3 rear end and a piece of paper P1, the rear end unanimity of second paper P2 ("Yes" of step S27), then enter step S28, if judge the 3rd paper P3 rear end and a piece of paper P1, the rear end of second paper P2 inconsistent ("No" of step S27) then returns step S27, rejudge, up to the rear end unanimity.

At step S28, according to the time of determining, transport roller 6 with second and switch to the clamping shipping situation, make paper P1, P2, P3 three transports towards process disk 14 with the state of rear end unanimity, the state shown in Figure 30 D.

Figure 32 A-32D represents to control the another kind of implementation step of occasion (2).In the action shown in Figure 30 A-30D, make large-sized second paper P2 keep out of the way among the pre-stored channel 2d with undersized a piece of paper P1.At Figure 32 A, among the 32B, make second paper P2 rest on second time and transport passage 2c, rather than be transported to pre-stored channel 2d, shown in Figure 29 D.Specifically, transporting roller 6 to being transported into second paper P2 rear end length of transporting passage 2c for second time and transporting roller 6 to the time of keeping out of the way from second in a piece of paper P1 rear end of pre-stored channel 2d equal in length from second, do not switch second shipping situation of transporting roller 6, make it keep original non-clamping shipping situation, shown in Figure 32 A.To be transported into second time with measure-alike large-sized the 3rd the paper P3 of second paper P2 and transport passage 2c, when the 3rd paper P3 front end arrives the position identical with second paper P2 front end, transport roller 6 with second and switch to the clamping shipping situation, make back-end location become consistent paper P1, P2, the superimposed process disk 14 that is transported to of P3 is shown in Figure 32 B.

Figure 33 is the diagram of circuit of the another kind of implementation step of the control occasion (2) represented of Figure 32 A-32D.

In Figure 33, at step S31, it is consistent that a piece of paper P1 rear end and second paper P2 rear end become, and makes rotating transport roller 6 and keep non-clamping shipping situation.

At step S32, whether the carriage direction size of judging the 3rd paper P3 is greater than second paper P2, if the size of the 3rd paper P3 is greater than second paper P2 ("Yes" of step S32), then temporarily stop to transport, if the size of the 3rd paper P3 is equal to or less than second paper P2 ("No" of step S32), then enter step S33.

At step S33, whether the carriage direction size of judging the 3rd paper P3 is less than second paper P2, if the size of the 3rd paper P3 is less than second paper P2 ("Yes" of step S33), little-big-little order for described control occasion (3), processing enters step S35, otherwise ("No" of step S33) for little-big-big 2 the order of described control occasion (2), handles entering step S34.

At step S34, determine the 3rd paper P3 rear end and a piece of paper P1, second paper P2 rear end becomes the consistent time, judge whether the 3rd paper P3 rear end be consistent with the rear end of a piece of paper P1 and second paper P2, if judge the 3rd paper P3 rear end and a piece of paper P1, the rear end unanimity of second paper P2 ("Yes" of step S34), then enter step S35, if judge the 3rd paper P3 rear end and a piece of paper P1, the rear end of second paper P2 inconsistent ("No" of step S34), then return step S34, rejudge, up to unanimity.

At step S35, transport roller 6 with second and switch to clamp position, make the rear end become the paper P1 of consistent state, P2, the superimposed process disk 14 that is transported to of P3 is shown in Figure 32 B.

Figure 34 A, 34B represent to control the paper mobile status of occasion (3).A piece of paper P1 rear end and second paper P2 rear end become consistent state, and a piece of paper P1 and second paper P2 keep out of the way pre-stored channel 2d, shown in Figure 34 A.Under this state, because the size that is transported into the 3rd the paper P3 that transports passage 2c for second time is less than second paper P2, therefore, the 3rd paper P3 front end with keep out of the way the time that is in same position at a piece of paper P1 of pre-stored channel 2d front end, transport roller 6 with second and switch to the clamping shipping situation, transport the paper P1 of back-end location unanimity, P2, P3 is shown in Figure 34 B.The treatment step of control occasion (3) carries out according to the treatment step shown in " little-big-little " in Figure 31 and 33.

Below controlling field being closed (4) describes.

When large-sized a piece of paper P1 is transported into when transporting passage 2c second time, before roller 6 is transported near second in a piece of paper P1 rear end, make second to transport roller 6 and remain the clamping shipping situation, shown in Figure 35 A.Transport when a piece of paper P1 front end transports roller 7 clampings by the 3rd, when its rear end is passed through to switch pawl 9, transport roller 6 with second and switch to non-clamping shipping situation, shown in Figure 35 B.Make the 3rd to transport roller 7 reverses, a piece of paper P1 is turned to towards pre-stored channel 2d transport, shown in Figure 35 C.The amount of keeping out of the way of keeping out of the way pre-stored channel 2d as a piece of paper P1 rear end makes from second and transports roller 6 to a piece of paper P1 rear end length and transport 6 to second paper P2 rear ends of roller equal in length from second, shown in Figure 35 D.In the present embodiment, the length of setting large-sized a piece of paper P1 is 420mm (the long limit that is equivalent to A3), and the length of second paper P2 of small size is 210mm (minor face that is equivalent to A3) occasion, and the amount of keeping out of the way of a piece of paper P1 is roughly 210mm.At this moment, large-sized a piece of paper P1 front end is kept by the 3rd and transported the state of roller 7 clampings.

Become the consistent time in large-sized a piece of paper P1 rear end with undersized second paper P2 rear end, transport roller 6 with second and switch to the clamping shipping situation, with paper P1, the state that P2 aligns with the rear end is transported to and transports for second time in the passage 2c, shown in Figure 35 E.If both back-end locations arrive or transport roller 6 near second, then switch second gyratory directions that transports roller 6, make both rear ends keep out of the way pre-stored channel 2d, shown in Figure 35 F, the amount of keeping out of the way of this moment is equivalent to large-sized a piece of paper P1 and is transported the reverse amount of transporting of roller 7 clampings by the 3rd.The size of the 3rd paper P3 of the large scale that newly is transported into equates with large scale a piece of paper P1, when the 3rd paper P3 is transported into when transporting passage 2c second time, transports roller 6 with second and switches to non-clamping shipping situation, shown in Figure 35 G.Arriving the 3rd with large-sized the 3rd paper P3 front end, to transport time of roller 7 corresponding, and transport roller 6 with second and switch to the clamping shipping situation, simultaneously, and with paper P1, P2, P3 is superimposed to be transported, shown in Figure 35 H.

Figure 36 A, 36B are the diagram of circuits of action step shown in the instruction diagram 35A-35H.

At step S41, judge whether large-sized a piece of paper P1 front end arrives the clip position that transports roller 7, if large-sized a piece of paper P1 front end arrives the 3rd clip position ("Yes" of step S41) that transports roller 7, then enter step S42, if large-sized a piece of paper P1 front end does not arrive the 3rd clip position ("No" of step S41) that transports roller 7, then return step S41, rejudge, wait for large-sized a piece of paper P1 front end arrive the 3rd transport the clip position of roller 7 after, begin to transport action.

At step S42, judge that whether a piece of paper P1 rear end is by switching pawl 9, if a piece of paper P1 rear end is by switching pawl 9 ("Yes" of step S42), then enter step S43, if a piece of paper P1 rear end is not by switching pawl 9 ("No" of step S42), then return step S42, rejudge, pass through to switch pawl 9 up to a piece of paper P1 rear end.

At step S43, transport roller 6 with second and switch to non-clamping shipping situation.

At step S44, when passing through to switch pawl 9 in a piece of paper P1 rear end, transport roller 7 by reverse, make a paper P1 rear end of winning with quantitatively keep out of the way pre-stored channel 2d, judge that whether a piece of paper P1 is with quantitatively keep out of the way pre-stored channel 2d, if a piece of paper P1 with quantitatively keep out of the way ("Yes" of step S44) among the pre-stored channel 2d, then enter step S45, if a piece of paper P1 not with quantitatively keep out of the way ("No" of step S44) among the pre-stored channel 2d, then return step S44, repeat to judge, quantitatively keep out of the way among the pre-stored channel 2d with institute up to a piece of paper P1.

At step S45, begin that undersized second paper P2 is transported into second time and transport passage 2c.

At step S46, second paper P2 rear end when consistent with large-sized a piece of paper P1 back-end location, transport roller 6 with second and switch to the clamping shipping situation, make a paper P1 that wins be transported to second time with the consistent state of back-end location and transport passage 2c, state shown in Figure 35 D with second paper P2.

At step S47, the 3rd new paper P3 transports passage 2b towards second time, 2c transports, the 3rd paper P3 and large-sized a piece of paper P1 are compared, the size of this a piece of paper P1 is the instruction decision of the guidance panel 201 by as shown in figure 28, if the 3rd paper P3 greater than a piece of paper P1 ("Yes" of step S47), then temporarily stops to transport.Otherwise ("No" of step S47) enters step S48.

At step S48, transport roller 6 with second and switch to the clamping shipping situation, make paper P1, the rear end of P2 be clamped in second holding part that transports roller 6.

At step S49, transport the gyratory directions of roller 6,7 by reverse, make paper P1, P2 turns to towards pre-stored channel 2d, and pre-stored channel 2d is kept out of the way in its rear end, as Figure 35 E, state shown in the 35F.

At step S50, a piece of paper P1 and second paper P2 are in and keep out of the way state, and large-sized the 3rd paper P3 is transported into second time and transports passage 2c, and be corresponding therewith, transports roller 6 with second and switch to non-clamping shipping situation.

At step S51, large-sized the 3rd paper P3 transported passage 2c towards second time be transported into.Judge the 3rd paper P3 back-end location whether with paper P1, the P2 unanimity, if judge the 3rd paper P3 back-end location and paper P1, P2 unanimity ("Yes" of step S51) then enters step S52, if judge that the 3rd paper P3 back-end location do not arrive paper P1, the back-end location of P2 ("No" of step S51), then return step S51, repeat to judge, up to unanimity.

At step S52, at the 3rd paper P3 back-end location and paper P1, when the back-end location of P2 is consistent, transports roller 6 with second and switch to clamp position, with the paper P1 of back-end location unanimity, P2, P3 is transported to process disk, state shown in Figure 35 H.

In addition, when a piece of paper P1 is transported into when transporting passage 2c second time, as shown in Figure 35 A-35C, to transport roller 6 be prerequisite for non-clamp position to set second.Can not make a paper of winning consistent though be not set at non-clamp position with the rear end of second paper yet, but, be transported at second paper and arrive second and carry out steering operation when transporting roller 6, owing to connect precision difference from action, can cause the back-end location adjusting accuracy inaccurate, and control is inconvenient, therefore, preferably makes second to transport roller 6 and remain on non-clamping shipping situation.

In the present embodiment,, on a piece of paper and second paper, add the 3rd paper that newly is transported into, set the shipping situation of handling part backwards according to the size of the 3rd paper as transporting step.But the present invention is not limited thereto, for example, if repeat the step of above-mentioned paper with two kinds of sizes as controlled object, then can be with the paper of four kinds of sizes as controlled object.

In the present embodiment, by the combination above-mentioned steps, can also make that the paper more than three is kept out of the way pre-stored channel 2d.For example, make undersized the 3rd paper P3 and paper P1 if replace in the control occasion (3), the step that P2 transports together, continue to be transported into large-sized the 4th paper occasion, be transported into the time of transporting passage 2c second time at undersized the 3rd paper, to keep out of the way first of pre-stored channel 2d, second paper also is transported into second time and transports passage 2c, then, make three paper turn to towards pre-stored channel 2d together, at this moment, the rear end of three paper becomes unanimity, large-sized the 4th paper is transported into second time and transports passage 2c, becomes the consistent time with described three paper rear ends in its back-end, four quires is closed be transported to the process disk side.Thus, in the present embodiment, will transport with various orders, can make the paper rear end that transports into this combination in the after-treatment device become unanimity as the paper of the specific combination of various sizes.

Identical among the formation of other each several parts of explanation and first embodiment do not have identical function.

According to present embodiment, can transport roller 6 with second and switch to clamping shipping situation or non-clamping shipping situation according to the size that is transported into paper, therefore, can handle the paper of the different size that is transported into smoothly, and make its rear end become unanimity.

The 7th embodiment

In the various embodiments described above, make paper turn to, the pre-stored channel 2d that transports passage as counter-rotating towards pre-stored channel 2d for example etc. transports occasion, before a piece of paper P1 is transported into pre-stored channel 2d, for fear of and described a piece of paper P1 between disturb, second paper P2 can not be transported.Therefore, the required time that prestores is elongated, can not improve the efficient of post-treatment procedures.Specifically,, the paper that equates with the rectangular width of paper carriage direction is arranged not only, also have along the different paper of carriage direction length as the paper of the object that prestores.Paper is along the different occasions of carriage direction length, compare less than second paper occasion with the length of a piece of paper along carriage direction, greater than second paper occasion, the standby time of second paper is longer along the length of carriage direction for a piece of paper, and it is also elongated to cause carrying out the required time of the whole operation of post-processing.

So, in the present embodiment, particularly transport in the pattern in mixing, even a piece of paper is along the size of the carriage direction big occasion of size than second paper, also can shorten the time that second paper begins to be transported into, and the required time of post-treatment procedures, thereby raise the efficiency.Below, be elaborated with reference to accompanying drawing.Identical among the formation of paper transferrer 50 itself and first embodiment, control constitutes identical with the formation of Figure 28 among the 6th embodiment, omission explanation here.

Figure 37 A-37D represents the mobile status of paper in the present embodiment.Shown in Figure 37 A, large-sized a piece of paper P1 is transported into second time and transports passage 2c, therefore, transports roller 6 with second and is set at the clamping shipping situation.Large-sized a piece of paper P1, if its front end arrives the 3rd and transports roller 7 and is held by being in the positive and negative roller 6 that transports of clamping shipping situation, then transports roller 6 with second and switches to non-clamp position.Transport roller 7 by reverse, make that be transported into the large-sized a piece of paper P1 that transports passage 2c for second time turns to towards pre-stored channel 2d, keep out of the way in the pre-stored channel 2d its rear end, shown in Figure 37 B.Making large-sized a piece of paper P1 keep out of the way in the process in the pre-stored channel 2d, begin that undersized second paper P2 is transported into second time and transport passage 2c, shown in Figure 37 C.As beginning to be transported into time of undersized second paper P2 this moment, be to be imported in the pre-stored channel 2d from large-sized a piece of paper P1 rear end, transport the holding part of roller 7 to its front end near the 3rd during.

Making large-sized a piece of paper P1 in the pre-stored channel 2d in the steering procedure, undersized second paper P2 is transported into second time transports passage 2c, in this stage, become the consistent time according to both sides' rear end, will keep out of the way large scale a piece of paper P1 in pre-stored channel 2d and transport passage 2c towards second and transport once more.Here, large-sized a piece of paper P1 transports with the consistent state in rear end in the same direction with undersized second paper P2, promptly transports in the passage 2c towards second time and transports, shown in Figure 37 D.

Figure 38 represents that shown in Figure 37 beginning carry out the time diagram that paper transports action.The positive dirction of Figure 38 and reversing sense are represented positive and negative roller 6 and the gyratory directions that transports roller 7 of transporting.In Figure 38,, then make described a piece of paper P1 turn to towards pre-stored channel 2d if a piece of paper P1 is transported into second time and transports passage 2c.In the past, be after turning to end, set second paper P2 is transported into the time (T0) of transporting passage 2c second time.In the present embodiment, different with above-mentioned conventional art, during a paper P1 that wins is turned to towards pre-stored channel 2d, set second paper P2 is transported into the time (T1) of transporting passage 2c second time.Like this, relatively present embodiment and conventional art, the standby time that begins to be transported into second paper has the time difference (T0-T1), thus, can shorten the standby time of waiting for that back row paper P2 begins to be transported into.

Figure 39 represents the diagram of circuit that transports action step of Figure 37.

At step S61, judge whether large-sized a piece of paper P1 front end arrives and transport roller 7 clip positions, if arriving, large-sized a piece of paper P1 front end transports roller 7 clip positions ("Yes" of step S61), then enter step S62, if having to arrive, large-sized a piece of paper P1 front end do not transport roller 7 clip positions ("No" of step S61), then return and rejudge, wait for large-sized a piece of paper P1 front end arrive transport roller 7 clip positions after, begin to transport action.

At step S62, judge that whether large-sized a piece of paper P1 rear end is by switching pawl 9, if large-sized a piece of paper P1 rear end is by switching pawl 9 ("Yes" of step S62), then enter step S63 and step S64, if judge that large-sized a piece of paper P1 rear end is not by switching pawl 9 ("No" of step S62), then return step S62, repeat to judge, pass through to switch pawl 9 up to large-sized a piece of paper P1 rear end.

At step S63, make large-sized a piece of paper P1 turn to towards pre-stored channel 2d, keep out of the way action.

At step S64, transport roller 6 with second and switch to non-clamp position.

At step S65, undersized second paper P2 is transported into second time transports passage 2c.

At step S66, be transported into respectively in the moving process that respectively transports passage at large-sized a piece of paper P1 and undersized second paper P2, whether the position of judging both sides' paper rear end is consistent, at this moment, according to the size of paper, transportation speed judges that be transported to two transports passage whether converge two side's paper rear ends of position consistent, if both sides' paper back-end location unanimity ("Yes" of step S66) then enters step S67.If judge both sides paper rear ends inconsistent ("No" of step S66), then repeat to judge, transport two side's paper rear ends that passage converges the position and become unanimity up to being transported to two.

At step S67,, transport roller 6 with second and switch to clamp position according to the time of two side's paper back-end location unanimities.

At step S68, with two side's paper P1, P2 transports in the same direction with closed state, promptly is transported to second time and transports passage 2c.

Carry out above-mentioned processing, overlap towards the haulage time that respectively transports passage, can shorten transporting the time opening of a piece of paper down owing to making.Specifically, be opposite sense owing to make the direction that is transported into of win a direction that paper P1 turns to and second paper P2, the very fast two side's paper rear ends that can access become the consistent time.Thus, can reduce the amount of movement that a piece of paper P1 turns to.

On the other hand, in mixing the pattern of transporting, not only transport two pieces of paper are superimposed, three or three above quires can also be closed and transport occasion, be described below.

Figure 40 A-40G represents that a piece of paper P1 and second paper P2 are equivalent size along carriage direction, and the 3rd the paper P3 that newly is transported into along the size of carriage direction than described paper P1, the little occasion of P2, the instruction diagram of action step.

Figure 40 A, the state shown in the 40B and Figure 39 A, the state shown in the 39B is identical.Making large-sized a piece of paper P1 transport passage 2c from second time turns to towards pre-stored channel 2d.In this process, large-sized second paper P2 is transported into second time transports passage 2c, as Figure 40 C, shown in the 40D.Then, shown in Figure 40 E, when a piece of paper P1 front end is consistent with second paper P2 front position, transport roller 6 with described second and switch to the clamping shipping situation, and before at this moment, it is set to non-clamping shipping situation, becomes consistent state with the front end of a piece of paper P1 with the front end of second paper P2, in other words, a piece of paper P1 is transported to second time with second paper P2 with the consistent state in rear end and transports in the passage 2c.Then, if paper P1, the rear end of P2 is by switching pawl 9, and roller 6 is transported facing to second in this rear end, then transports roller 6 with second and switches to non-clamping shipping situation, begins that the 3rd paper P3 of new small size transported passage 2c towards second time and transports, shown in Figure 40 F.Thus, when making undersized the 3rd paper P3 be transported into to transport passage 2c second time, can not transported roller 6 and stop and move, transport passage 2c thereby be transported into second time by second.In this process, when undersized the 3rd paper P3 becomes the consistent time with large-sized a piece of paper P1 and the tripartite back-end location of large-sized second paper P2, transport roller 6 with second and switch to shipping situation, with three's paper in the same direction with closed state, promptly transport in the passage 2c and transport, shown in Figure 40 G towards second time.

Figure 41 A, the diagram of circuit of the action step of 41B presentation graphs 40A-40G.In Figure 41 A, the processing from step S61 to step S66 is with identical shown in Figure 39.

At step S66, judge whether a piece of paper P1 is consistent with second paper P2 back-end location, if both sides' paper back-end location unanimity ("Yes" of step S66) then enters step S69.If judge both sides paper rear ends inconsistent ("No" of step S66), then repeat to judge, up to unanimity.

At step S69, the rear end is become consistent a piece of paper P1 and second paper P2 be transported to second time and transport passage 2c.

At step S70, whether the front end of judging a piece of paper P1 and second paper P2 arrives the holding part that transports roller 7, arrive the holding part ("Yes" of step S70) that transports roller 7 if judge the front end of a piece of paper P1 and second paper P2, then enter step S71, there is not to arrive the holding part ("No" of step S70) that transports roller 7 if judge the front end of a piece of paper P1 and second paper P2, then return step S70, repeat to judge, transport the holding part of roller 7 up to arrival.

At step S71, whether the rear end of judging a piece of paper P1 and second paper P2 is by switching pawl 9, if a piece of paper P1 and second paper P2 are by switching pawl 9 ("Yes" of step S71), then enter step 72,73, if a piece of paper P1 and second paper P2 then return step S71 not by switching pawl 9 ("No" of step S71), repeat to judge, up to passing through to switch pawl 9.

Not expression among Figure 41 when a piece of paper P1 is transported into when transporting in the passage 2c second time with second paper P2, is transported roller 6 with second and is set at the clamping shipping situation.

At step S72, a paper P1 that wins is turned to towards pre-stored channel 2d with second paper P2, simultaneously,, begin that the 3rd paper P3 of new small size is transported into second time and transport passage 2c at step S73.

At step S74, judgement make a paper P1 that wins with second paper P2 in pre-stored channel 2d steering procedure, the 3rd paper P3 rear end of the small size that is transported into and above-mentioned paper P1, the rear end of P2 becomes the consistent time, if three's back-end location unanimity ("Yes" of step S74), then enter step S75, otherwise ("No" of step S74) then returns step S74, repeats to judge, arrive paper P1, the back-end location of P2 up to undersized the 3rd paper P3 rear end.

At step S75, with three paper P1, P2, the superimposed process disk that is transported to of P3.

The formation of other each several parts of explanation identical with described in above-mentioned first embodiment do not have identical functions.

According to present embodiment, in the pattern that mixing is transported, even the preceding sheet parts along the size of carriage direction than the big occasion of back a piece of paper parts, also can shorten transporting the time opening of back a piece of paper parts, improve the efficient of post-processing.

Above with reference to description of drawings embodiments of the invention, but the present invention is not limited to the foregoing description.Can do all changes in the technology of the present invention thought range, they all belong to protection scope of the present invention.

Claims (22)

1. paper transferrer is provided with:

First transports passage, and paper is sent to Device for treating paper;

Second transports passage, transports the passage bifurcated from described first, and temporary transient storage is transported to described first paper that transports passage;

Paper transports means, selectively the reversing sense of described paper towards described Device for treating paper direction or described Device for treating paper is transported;

The guiding means are arranged at described the first, the second crotch that transports passage, when make described paper be transported to second when transporting passage towards reversing sense by the described means of transporting, paper are led;

Control assembly is used to control described paper and transports means, according to the size of described paper along carriage direction, changes described tapping point and described distance of transporting between means.

2. according to the paper transferrer of record in the claim 1, it is characterized in that:

Described paper bag is drawn together and temporarily is stored in second a piece of paper that transports passage, and closes second paper that transports with described first quires.

3. according to the paper transferrer of record in the claim 2, it is characterized in that:

When described a piece of paper is transported to described second when transporting passage towards reversing sense, described control assembly makes the paper means of transporting change the stop position of this paper front end according to the size of paper along carriage direction.

4. according to the paper transferrer of record in the claim 1, it is characterized in that:

The described paper means of transporting comprise along first transports the some to transporting roller of each position configuration of passage;

Described control assembly is according to the size of paper, and that determines to be arranged on each position, tapping point downstream is some to transporting a pair of in the roller, makes described paper transport the front end of means at the described paper of tapping point downstream clamping.

5. according to the paper transferrer of record in the claim 4, it is characterized in that:

Somely comprise and connecing from means to transporting in the roller at least one pair of, this connect from means with described at least one pair of transport first state that roller switches to the described paper of clamping, and the described paper of not clamping, second state that it is passed through.

6. according to the paper transferrer of record in the claim 5, it is characterized in that:

The described paper means of transporting comprise that be arranged on described tapping point downstream some transport roller to transporting a pair of first of upstream side in the roller, and described first transports roller is arranged on and separates crunode paper lateral dimension 182mm with interior position.

7. according to the paper transferrer of record in the claim 6, it is characterized in that:

The described paper means of transporting comprise that being arranged on described a pair of first transports a pair of second of roller downstream and transport roller, and described second transports roller is arranged on and separates crunode paper longitudinal size 257mm with interior position.

8. according to the paper transferrer of record in the claim 7, it is characterized in that:

When the paper that transports is equal to or greater than paper lateral dimension 182mm along the size of carriage direction, during less than paper longitudinal size 257mm, described first transports roller is switched to first state.

9. according to the paper transferrer of record in the claim 7, it is characterized in that:

When the paper that transports when the size of carriage direction is equal to or greater than paper longitudinal size 257mm, described first transports roller is switched to second state.

10. according to the paper transferrer of record in the claim 5, it is characterized in that:

When the paper that transports, transports roller with described first and switches to first state during less than paper size 355.6mm along the size of carriage direction;

When the paper that transports when the size of carriage direction is equal to or greater than paper size 355.6mm, transport roller with described first and switch to second state.

11. the paper transferrer according to record in the claim 7 is characterized in that:

When described first transported roller and keep second state, described second transports roller can select to transport described paper towards described Device for treating paper working direction or reversing sense.

12. the paper transferrer according to record in the claim 2 is characterized in that:

When paper transports means a piece of paper and second quires are closed when being transported to described Device for treating paper, control described second paper and stop at and arrive described paper and transport institute's allocation before the means.

13. the paper transferrer according to record in the claim 12 is characterized in that:

Described institute allocation is that described second paper front end and described paper transport the means position contacting.

14. the paper transferrer according to record in the claim 2 is characterized in that:

Be provided with bending and allow means, when the described paper means of transporting are closed fortune to Device for treating paper with described a piece of paper and second quires, allow second paper arrive produce after described paper transports means crooked.

15. the paper transferrer according to record in the claim 14 is characterized in that:

When described paper transports means described a piece of paper and described second quires are closed when being sent to Device for treating paper, control makes second paper slow down before transporting means arriving described paper.

16. the paper transferrer according to record in the claim 14 is characterized in that described bending allows that means comprise:

Guide plate is set to facing to by described first paper that transports passage;

Fulcrum is arranged on the upstream of described guide plate, supports described guide plate revolution freely;

Elastomeric element often transports passage towards described first described guide plate is energized;

At least one block limits the free-ended position of described guide plate, guarantees to carry out that paper transports first transports width of channel.

17. the paper transferrer according to record in the claim 16 is characterized in that:

Described bending allows that means are arranged on described first upstream position along the paper carriage direction that transports roller.

18. a Device for treating paper is characterized in that, is provided with each described paper transferrer among the claim 1-17.

19. an image processing system is characterized in that, is provided with each described paper transferrer among the claim 1-17.

20. an image processing system is characterized in that, is provided with the Device for treating paper described in the claim 18.

21. a paper transports method, carries out in paper transferrer, it is characterized in that, comprising:

Accept step, accept a piece of paper that obtains from image processing system;

Determining step according to the size of described a piece of paper along carriage direction, determines that first transports passage and second and transport the tapping point of passage and paper and transport distance between the means;

A piece of paper transports step, and described a piece of paper is transported towards the direction of advancing, and transports towards reversing sense then;

Storing step is stored in pre-stored channel with described a piece of paper;

Second paper transports step, and second paper is transported towards the direction of advancing;

The superimposed step of transporting is closed described a piece of paper and second quires and is transported.

22. the paper according to record in the claim 21 transports method, it is characterized in that:

By selecting a pair of roller that transports the roller to transporting, carry out described determining step from some.

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