CN85107677B - Copy device - Google Patents

Abstract

A kind of copy device disposes light-emitting component on it, be used to refer to be placed on the dull and stereotyped specialized range that goes up original paper, also has a light-emitting component to be used for erasing the electric charge on photosensitive body surface, and the indicated specialized range of the part of being erased and light-emitting component is corresponding.Send a luminous point with light-emitting component and shine on the original paper, and removable scope to determine to erase.In imaging procedures, use " scope of erasing is determined key " to determine the scope of inside, border, and by developing device black developing agent developing.In addition, " erase the model circle and determine key " scope of determining the outside, border with another and by another developing device with red agent developing.

Description

Copy device

The invention relates to a kind of copy device that can realize two kinds of developing modes at least.

In general, common electronic copier can dwindle original paper or amplify, and can only obtain monochromatic copy.

Recently proposed to develop a kind of requirement that certain part of the original paper of monochrome can be duplicated into the duplicating machine of other colors.Such as, can only required part be duplicated into redness and remainder still keeps black with this duplicating machine, perhaps when original paper has photo, literal and photo can be duplicated respectively clearly and the striped that blurs.But for electronic copier in the past, it is difficult satisfying this requirement.

The present invention designs in this case, is to want to provide a kind of copy device, and it can duplicate certain part of original paper, makes the part of being duplicated carry out developing in a different manner.

According to the present invention,, the photographic developer of different colours is housed in these two developing devices such as using two developing devices.These two developing devices can be used alternatingly so that obtain the image of a polychrome on a piece of paper.In addition, any part of original paper can be erased.Like this, any part of original paper can change color.

Fig. 1-shown in Figure 20 is an embodiment according to copy device of the present invention, wherein:

Fig. 1 is a skeleton view of this device;

Fig. 2 is a side view of this device of explanation;

Shown in Figure 3 is the planimetric map of console panel;

Shown in Figure 4 is the skeleton view of gearing configuration;

Fig. 5 is a skeleton view of expression optical system gear train;

Fig. 6 is a skeleton view of expression indicating device gear train;

Shown in Figure 7 is the block scheme of control system;

Shown in Figure 8 is the fragmentary, perspective view that comprises pointolite;

Shown in Figure 9 is the partial side view that comprises pointolite;

Figure 10, Figure 11 and floor plan shown in Figure 12 explanation utilize pointolite to determine that original paper erases the operating process of scope;

It shown in Figure 13 A and Figure 13 B diagram of expression storage;

Shown in Figure 14 is the partial side view that the configuration of system is erased in explanation;

Figure 15 and Figure 16 represent to erase the skeleton view and the front elevation of system's major part respectively, and the relation between device and the photosensitive se drum is erased in expression;

It shown in Figure 17 A a side view erasing device;

It shown in Figure 17 B the partial elevation view of erasing device;

Figure 18 is the wiring diagram that device driving system is erased in expression;

It shown in Figure 19 A, 19B, 19C, 19D and the 19E example of copy device operation;

Shown in Figure 20 is the partial side view of erasing the another kind of configuration of device.

With reference to the accompanying drawings one embodiment of the present of invention are described in detail.

Duplicating machine illustrated in figures 1 and 2 is as a copy device by the present invention's design, in Fig. 1 and Fig. 2, and the body of label 1 expression duplicating machine.A dull and stereotyped 2(clear glass is housed) on the top of body 1.Side dull and stereotyped 2 has disposed a cover plate that can stir 1 ₁With a worktable l ₂Be placed on original paper above dull and stereotyped 2 and below optical system dull and stereotyped 2, be scanned during along the to-and-fro movement of arrow a direction and carry out image and expose, exposure lamp 4 and catoptron 5,6 and 7 are housed on the optical system.In this case, catoptron 6 and 7 movement velocity are half of catoptron 5, to keep the light path of a regular length.

The light beam that reflects from original paper be that is to say by optical system scans, is exposed the original paper beam reflected of lamp 4 irradiations, through catoptron 5,6 and 7 reflections and the camera lens 8 by amplifying or dwindling, then by mirror 9 ₁, 9 ₂With 9 ₃Reflex on the photosensitive se drum 10.Like this, the image on the original paper just forms on the surface of photosensitive se drum 10.

Photosensitive se drum 10 rotates along the direction of arrow C indication, therefore the whole surface of toner cartridge can be at first by main charger 11 chargings, the image of original paper projects on the surface of the photosensitive se drum 10 that has charged by slit exposure, forms an electrostatic latent image from the teeth outwards.Then, this electrostatic latent image is by two developing devices 12 ₁With 12 ₂Developing obtains a visible image (image of colouring), can each self-chambering on these two developing devices with red and black on toner, can be used alternatingly it as required.

The paper P of recording picture can be by getting paper bowl 14 ₁, 14 ₂Or 14 ₃, pinch roll 15 ₁, 15 ₂Or 15 ₃Respectively from last carton 13 ₁, middle carton 13 ₂With following carton 13 ₃In take out page by page, and by pinch roll 16 ₁, 16 ₂Or 16 ₃Deliver to a pair of registration roller 17 places.Then, by this a pair of registration roller 17 each page paper P is delivered to one and transmit the district, just in time be in step with formation visible image on photosensitive se drum 10.

The box 13 of dress paper ₁, 13 ₂With 13 ₃All be placed in the lower right of duplicating machine body 1, carton can take out, and can operate on console panel and arbitrarily select for use, and this point will at length be illustrated in the back.Carton 13 ₁, 13 ₂With 13 ₃All is furnished with corresponding indicator cock 60 respectively ₁, 60 ₂With 60 ₃Be used to refer to selected carton size.Each indicator cock 60 ₁, 60 ₂With 60 ₃All be made up of some microswitches, these microswitches carry out open and close according to the different size of the carton that is inserted.

Deliver to the paper P that transmits the district and directly contact with the surface of photosensitive se drum 10, paper is in and transmits between charger 18 and the toner cartridge 10.As a result, the last color picture on the photosensitive se drum 10 is just transferred on the paper P by the effect that transmits charger 18.After image transfer finishes, make paper P leave photosensitive se drum 10 and send out by a travelling belt 20 by means of a separating charger 19.Then, paper P is sent in a pair of fixation roller 21, and this color-fixing device is arranged in the end of travelling belt 20.Through after the fixation, paper P is delivered in the pallet 25 of body 1 outside by a pair of discharge roller 22, middle through a flopgate 23 and a pair of outlet nip rolls 24, this moment, flopgate was in the position shown in the solid line among Fig. 2.

In addition, after transmitting, photosensitive se drum 10 will discharge with clarifier 26, and toner will be got rid of with clarifier 26 on residual on toner cartridge 10 surfaces simultaneously.After this, with a discharge tube 27 image remaining on the photosensitive se drum 10 is erased again, recover original situation.In Fig. 2, cooling fan is closed in 29 expressions one, is used for preventing that the temperature in the body from rising.

Simultaneously, below duplicating machine body 1, have a double-sided copying and multicolour copying this device of device 28 usefulness can the two sides of every page of paper duplicate or same one side at paper on carry out multicolour copying.This device 28 comprises a flopgate 23, discharge roller 24 and much pinch roll is used for the paper that flopgate 23 is sent back is delivered among the collection carton 28a.

Collecting carton 28a is equipped with and gets paper bowl 28e and be used for the paper that temporarily leaves among the collection carton 28a is taken out.Getting paper bowl 28e can move up and down in the direction of arrow indication according to the thickness of collecting a stacker of being deposited in the carton number of pages of paper (or according to).From collect carton 28a, import a control gate 28g via a pair of pinch roll 28f,, promptly paper is fed page by page so that individually by the paper of getting paper bowl 28e taking-up.

When carrying out multicolour copying, control gate 28g makes paper deliver to a pair of registration roller 17 by a pair of paper feeding roller 28h and a guide plate arrangement 28i towards the direction swing of arrow M indication.When carrying out double-sided copying, control gate 28g then will be transformed into and make paper enter a paper return device 28K by a pair of pinch roll 28j on that position shown in Figure 2, after paper has arrived on the return mechanism 28K, control gate 28g just swings to the direction of arrow T indication, thereby paper is returned through pinch roll 28j, and deliver to a pair of registration roller 17 by paper feeding roller 28h and guide plate arrangement 28i.

The console panel 30 that is mounted on the duplicating machine body 1 shown in Figure 3." duplicating key " 30 is housed on console panel 30 ₁Be used for beginning copying operation: ten " printing keys " 30 ₂Be used for setting the umber that is duplicated; A display segment 30 ₃Be used to refer to the working condition of each several part and whether paper jam phenomenon is arranged; Carton " options button " 30 ₄Be used for selecting three cartons 13 of upper, middle and lower ₁, 13 ₂Or 13 ₃In one, also have carton to show 30 in addition ₅Be used to refer to selected carton size." ratio adjustment key " 30 also is housed on console panel 30 ₆Be used for predefined several dwindle or magnification ratio in select " velocity modulation key " 30 ₇Be used for adjusting the ratio of amplifying or dwindling, have one to show 30 simultaneously ₈Be used to refer to the ratio of being adjusted, also have a liquid degree to adjust 30 in addition ₉Be used for regulating the concentration that goes up toner when duplicating.

" operating key " 30a, 30b, 30c and 30d also are housed on console panel 30 are used for transfer point light source (below retell), pointolite is used to refer to the position of erasing on the original paper, there is " position indication key " 30e to be used for importing the coordinate position of indicating by pointolite, in addition, also have " erasing the scope indication key " 30f and 30g to be used to refer to the scope of erasing in assigned address." multicolour copying indication key " 30h also is housed on console panel 30, " double-sided copying indication key " 30i, " red indication key " 30j is used to refer at developing device 12 ₁In dress be red last toner (just representing a certain color), " black indication key " 30K is used to refer at developing device 12 in addition ₂In the dress be the last toner (just representing a certain color) of black.If do not lift " duplicating the mode indication key " 30h and 30i when duplicating machine starts, duplicating machine body 1 just carries out automatic setting general single-sided copying operation so.

Shown in Figure 4 is the gearing arrangement plan of each running part on the duplicating machine of said structure.Gearing comprises following some motors like this.31 expression lens drive motors among the figure.This lens drive motor 31 is used for the position of moving lens 8 so that amplify or dwindle.32 expression catoptron drive motors.This catoptron drive motor 32 is used for changing distance (being the length of light path) between catoptron 5 and catoptron 6 and 7 so that zoom in or out.33 expression scanning motors.This scanning motor 33 is used for moving exposure lamp 4 and catoptron 5,6 and 7 so that original paper is scanned.34 expression optical gate drive motors.This optical gate drive motor 34 is used for moving an optical gate (not showing on the figure) so that be adjusted in the width that amplifies or charge with 11 pairs of photosensitive se drums 10 of charger when dwindling.

The motor that 35 expression developings are used among Fig. 4.This developing is used for the motor of transmission developing roller and similar developing device 12,36 expression transmission toner cartridges with motor 35, and this toner cartridge drive motor 36 is used for the motor that transmission photosensitive se drum 10,37 expression fixation are used.The motor 37 that this fixation is used is used for transmission sheet-transport belt 20, the motor that a pair of fixation roller 21 and 24, the 38 expression paper feedings of a pair of outlet nip rolls are used.The motor 38 that this paper feeding is used is used for transmission pinch roll 15 and 16,39 and represents to feed the motor that paper is used.This is fed altar and reaches 39 and be used for transmission registration roller 17,40 expression fan drive motors.This fan drive motor 40 is used for transmission cooling fan 29.

Shown in Figure 5 is the reciprocating gear train of optical system.Catoptron 5 and exposure lamp 4 are installed in first dolly 41 ₁On, catoptron 6 and 7 then is installed in second dolly 41 ₂On.These two dollies 41 ₁With 41 ₂Can be parallel mobile in the direction of arrow a indication, by guide rail 42 ₁With 42 ₂Lead, belt pulley 43 is by one four phase pulse motor 33 transmissions, the belt 45 of dress between belt pulley 43 and loose pulley 44, first dolly 41＜` of supporting reflex mirror 5; ; * `〉an end promptly be fixed on the middle part of this belt 45.

On the other hand, there are two pulleys 47 can be contained in second dolly 41 rotationally ₂Guide block 46 on (be used for guide rail 42 ₂) and at guide rail 42 ₂Axial direction catoptron 6 separated by a distance and 7 promptly be installed on second dolly.Put a rope 48 between two pulleys 47, a rope end of 48 directly is connected on the fixture 49, its other end is then by a coil spring 50 〈 ﹠﹠ that link to each other〉end is fixed on the rope 48.

〈 ﹠﹠ in this configuration〉belt 45 begins to rotate and driven first dolly 41 ₁When first dolly 41 ₁When mobile, second dolly 41 ₂Also together move.Because pulley 47 is as movably pulley work, so second dolly 41 ₂Move but its translational speed is first dolly 41 in same direction ₁Half, first and second dolly 41 ₁With 41 ₂Moving direction be to control by the gyratory directions of conversion pulse motor 33.

On the duplicating machine flat board 2 again terrain indicate the scope of designated paper size.If by " paper mold options button " 30 ₄The regulation antiquarian and by " ratio adjustment key " 30 ₆Or 30 ₇Selected reproduction ratio is respectively (PX, PY) and K, and then the range of size that can reproduce (X, Y) will be:

X＝PX/K，

Y＝Py/K。

The coordinate of any of any appointment in the scope that can reproduce (X, Y), as shown in Figure 5, the X coordinate can be indicated with the indicator 51 and 52 that is contained in dull and stereotyped 2 the insides, then available first dolly 41 that is contained in of Y coordinate ₁The scale 53 on top, top is indicated.

As shown in Figure 6, indicator 51 and 52 is installed on the rope 57, and this root rope is enclosed between two pulleys 54 and 55 by a spring 56.Pulley 55 is by motor 58 transmissions.According to paper mold size and amplification or the ratio of dwindling, can change distance between indicator 51 and 52 by drive motor 58.

When motor 33 carries out transmission according to paper mold size and amplification scale down, first dolly 41 ₁Just move on the preposition (original position system is according to the ratio of amplifying or dwindling) when lifting " duplicating key " 30 ₁The time, first dolly 41 ₁At first shift to second dolly 41 ₂, then, exposure lamp 4 is luminous, first dolly 41 ₁From second dolly 41 ₂Remove.After the original paper end of scan, exposure lamp 4 is closed, first dolly 41 ₁Turn back to its original position.

Shown in Figure 7 is total control system figure of electronic copier.This control system mainly comprises a master processor group 71 and the first subprocessor group 72 and the second subprocessor group 73, master processor group 71 is used for detecting the input data from console panel 30 and one group of input media 75, input media 75 comprises various switches and sensor, as carton size detection switch 60 ₁With 60 ₂, simultaneously, the master processor group also is used for controlling a high-tension transformer 76, so that drive charger, discharge tube 27, the chip solenoid valve 26a of purification plant 26, the well heater 21a of fixation roller 21, exposure lamp 4 and motor 31-40, motor 58 and 77, thus copying operation can be finished.Master processor group 71 also be used for controlling a pointolite 91, pulse motor 95, one erase 100, one gearings 110 of device and a storer 120, thereby can erase why not original paper needs if being taken up an official post part.These parts 91,95,100,110 and 120 will explain afterwards.

Motor 35,37 and 40 and on developing device 12 feeds the motor 77 of toner all be connected on the master processor group 71 and control by a motor driver 78.95 in motor 31-34 and motor are connected on first subprocessor group 72 by a pulse motor driver 79 and control.36,38,39 and 58 in motor is connected on second subprocessor group 73 by a pulse motor driver 80 and controls.

In addition, exposure lamp 4 is controlled by master processor group 71 by a light-regulator 81, and well heater 21a is then controlled by master processor group 71 by a heater control device 82.Master processor group 71 is sent the instruction that each motor is opened and stopped to first and second subprocessor group 72 and 73.Subsequently, first feeds back to master processor group 71 with second subprocessor group 72 and 73 indicator signals with each motor operated mode.In addition, position transducer 83 also to original position that first subprocessor group 72 provides indication motor 31-34 for information about.

Pointolite 91 will be described in detail below

In Fig. 8 and Fig. 9, the axis of guide 90 is contained in first dolly 41 that blocking emits beam from lamp 4 ₁On, it is along the direction elongation of lamp 4.The axis of guide 90 is fitted together movably with pointolite 91, and this pointolite 91 is used to refer to the scope that original paper is erased as an indicating device.As shown in Figure 9, pointolite 91 comprises an illuminating part 92, as light emitting diode or lamp, and lens 93, these lens face the flat board 2 of duplicating machine.

The light beam scioptics 93 that send from illuminating part 92 are mapped on the duplicating machine flat board 2, and the diameter d of luminous point is about 2 millimeters.Luminous point has enough brightness, and it can pass one and be placed on and resemble the so thick original paper G of postcard on the duplicating machine flat board 2.Pointolite 91 is connected with a timing tape (toothed belt) 94, and this timing tape is disposing along the axis of guide 90.Timing tape 94 is contained between the pulley 96 and idler sheaves 97 on 95 of the pulse motors.When pulse motor 95 rotated, pointolite 91 was just perpendicular to first dolly 41 ₁The direction of scanning moves.

At first dolly 41 ₁On a position transducer 98 of being made up of microswitch is installed, be used for the original position of check point light source, position transducer is just in the end of the axis of guide 90 by this side of pulse motor 95.For example, thus pointolite 91 at first run into position transducer 98 when moving and detect its original position.

Determine that with pointolite 91 original paper erases the method for scope below with reference to Figure 10-12 explanation.

" operating key " 30a-30d moves pointolite 91.When pressing " operating key " 30b and 30d, motor 33 just starts, first dolly 41 ₁Just (arrow Y direction among Figure 10) moves in the direction of scanning with pointolite 91.When pressing " operating key " 30a and 30c, then motor 95 startings, at this moment, pointolite 91 moves in the direction (direction of arrow X indication among Figure 10) perpendicular to scanning.

The operator simultaneously watches by original paper G and sees through the luminous point of coming, a pressing " operating key " 30a-30d.Such as, certain 1 S on the original paper G shown in luminous point arrival Figure 11 ₁The time, the operator is pressing " key is determined in the position " 30e just, is determined.At this moment, this point S ₁Coordinate position just be stored into master processor group 71(Fig. 7) in go.Equally, if certain 1 S on luminous point arrival original paper ₂The time pressing " key is determined in the position " 30e, this point S so ₂The position will be stored in the master processor group 71.This position of luminous point for example can be detected with the number of drive pulses that pulse motor 33 and 95 sends.After " scope of erasing is determined key " 30f pressing, two relative summits are S ₁And S ₂Rectangle region (being decorated with the zone of shade) be exactly determine the scope (seeing Figure 11) erased.

If determining some the some S on the original paper ₃And S ₄Later pressing " scope of erasing is determined key " 30g, then (promptly two relative summits are S to other parts of original paper ₃And S ₄Square region beyond part) be confirmed as erasing scope.Like this, when pressing " scope of erasing is determined key " 30f or 30g, master processor group 71 will be carried out computing according to determined 2 positions, use high level signal " 1 " and low level signal " 0 " to be stored in those addresses of storer 120 respectively erasing scope and reserve part, Figure 13 A and Figure 13 B represent determined mode among Figure 11 and Figure 12 respectively.

Such as, storer 120 is random access memory (RAM), it equals to remove the numerical value of pointolite 91 at directions X institute displacement gained with the location components of directions X in the storage capacity of the direction of each row substantially, and the storage capacity of its each line direction equals to remove the numerical value of pointolite 91 at Y direction institute displacement gained with the location components of Y direction substantially.Under situation shown in Figure 7, will on the basis of the data that master processor group 71 provides, high level signal and low level signal be stored in those addresses of storer 120, be respectively applied for the zone of picture shade and the zone of remainder.

On the other hand, as shown in figure 14, erase device 100 be configured in photosensitive se drum 10 near, such as being placed between charger 11 and the exposure area ph.As Figure 15 and shown in Figure 16, to erase device 100 and comprise a lot of black unit 101, these black unit are arranged in and the perpendicular direction of photosensitive se drum 10 gyratory directions.Shown in Figure 17 A and 17B, each black unit 101 all comprises a light-emitting component 102, and this light-emitting component can be made of light emitting diode etc.In addition, a convergent lens 103 also is housed in the face of photosensitive se drum 10 at the opening portion of each black unit 101, these lens 103 can be with the convergence of rays of light-emitting component 102 to the surface of photosensitive se drum 10.

Number and the storer 120 of erasing luminous element disposed 102 on the device 100 are suitable in the storage capacity of the direction of row.If the distance of adjacent two light-emitting components 102 is P, the number of light-emitting component 102 is N, so, erases the total length Q=N * P of device 100.

Erase device 100 by gearing 110 transmissions.As shown in figure 18, erase gearing 110 and comprise a shift register 111, a register 112 and an on-off circuit 114, shift register is identical in the figure place of the direction of row with storer 120, register is used for preserving the content of shift register, and on-off circuit comprises that a series of on-off element 113 can carry out Kai Heguan according to the output signal of register 112.The movable contact 113a of on-off element 113 is a ground connection, and its fixed contact 113b is connected with the corresponding negative pole of the light-emitting component 102 of erasing device 100.The positive pole of light-emitting component 102 by current-limiting resistance R individually with a power supply V _CCLink to each other.

After the scope of erasing of element was determined with above-mentioned mode, original paper was placed on the duplicating machine flat board and pressing " duplicating key " 30 ₁, at this moment, first dolly 41 ₁Started with photosensitive se drum 10, and the data D of each row ₁In turn read from the direction of the row of storer 120.

The data D that reads ₁Be sent in the shift register 111 of erasing gearing 110 according to clock signal clk.When device 100 is erased in the arrival of the surface that has been recharged of photosensitive se drum 10, after a column data is sent to shift register 111, master processor group 71 is just sent a locking signal LTH, LTH is corresponding with locking signal, and the data that have been stored in the shift register 111 are stored in the register 112.As previously mentioned, erasing device 100 is configured between charger 11 and the exposure area PH.Therefore, if the angle of erasing between device 100 and the exposure area PH is θ ₁, and the angle of photosensitive se drum 10 speed is ω, the output time of locking signal LTH will be controlled by following condition so: promptly the data of sending from the delegation of storer 120 will be equivalent to send register 112 in this section of θ/ω period to.

Each on-off element 113 of on-off circuit 114 is controlled by the output signal of register 112.If register 112 outputs is high level signal, then on-off element 113 will be connected, if low level signal then disconnects.Like this, the light-emitting component 102 that is connected with on-off element 113 will also switch on and off respectively when its corresponding on-off element switches on and off.Considerably, will be discharged with that a part of surface of having charged of light-emitting component 102 corresponding photosensitive se drums 10.Even expose subsequently, this part of having discharged also is with any electrostatic latent image never again again.Like this, the operation of erasing of original image is finished with regard to accusing.After this, the data in the storer 120 are read out one so that carry out erasing of image with being listed as.

Use the equipment of this structural shape just can obtain one from the original paper G of one page monochrome such as by a part of black image G ₁With the red visual G of a part ₂The copy of forming is shown in Figure 19 A.When duplicating, original paper G is put on the duplicating machine flat board 2, follow at first pressing " multicolour copying is determined key " 30h and " the black image is determined key " 30K, then, pressing " operating key " 30a-30d, " key is determined in the position " 30e and " scope of erasing is determined key " 30f, thereby red image area G ₂The scope that is defined as erasing with coordinate (Sa, Sb) is shown in Figure 19 B.If pressing " duplicating key " 30 in this case ₁Then only at the G of paper P ₁That part runs off with toner on the black, and shown in Figure 19 C, and the paper P after duplicating temporarily leaves among the collection carton 28a.

When pressing " scope of smearing is determined key " 30g, the black image duplicates part G ₁Be confirmed as erasing scope, this part is corresponding to the every other part beyond coordinate (Sa, Sb) the institute restricted portion.In this case, if continuous pressing " red image is determined key " 30j and " duplicating key " 30 ₁, then those have duplicated G ₁This a part of paper P(is shown in Figure 19 C) will from collect carton 28a, be taken out.Then, only with G among Figure 19 D ₂This part is duplicated on the paper P with the red toner of going up.So, the image of original paper is just used black and is gone up toner respectively with G with redness ₁And G ₂These two parts duplicate on the paper P.

Say in this case in the above, only duplicated portion.If duplicate many parts, just can be earlier the black of image be partly duplicated many parts, then with red part G ₂Duplicate up in the mode that overlaps.

Certainly, the color of last toner is not limited to redness and black.

According to the top embodiment that says, this duplicating machine has two kinds of copy functions, and a kind of function is to erase any undesired part of original image selectively, and another kind of function is the copy function of polychrome.Therefore, the original paper of a polychrome can duplicate into the sharp image of band look, and wherein two-part color can be different.

In addition owing to when determining to erase scope, can watch luminous point on the original paper flat board 2 simultaneously, so the operator can operate at a glance, determined when erasing scope and duplicating the actual scope of erasing do not have what error.

Because pointolite 91 is to be installed in first dolly 41 ₁On, so that space utilization gets is very good, can not make equipment become too big.

The embodiment that is said above the invention is not restricted to, for example, erasing device 100 can not be arranged between charger 11 and the exposure area Ph (shown in Figure 180) and be arranged between exposure area Ph and the developing device 12, as shown in figure 20, so also can as required the electrostatic latent image that forms be erased.

In addition, if necessary, the storage capacity of storer 120 also can change.

Should be appreciated that do not leaving scope of the present invention or spirit, the expert of this respect can make different changes and improvements to the present invention.

According to the embodiment that the front is said, this copy device can also be equipped with two developing devices 12 ₁With 12 ₂, they can use two kinds of photographic developers of different colours so that obtain the printing image of dichromatism respectively.But, the present invention also is not limited to this configuration, first and second developing devices 12 ₁With 12 ₂In photographic developer also can be identical color.In this case, such as at first developing device 12 ₁In used photographic developer can select for use dark, and at second developing device 12 ₂Middle use light color, thus the different printing image of the depth can be obtained.According to this improvement to embodiment, just might be according to literal and characteristics of images selectively with a few parts of an original image with first developing device 12 ₁Carry out developing, other part needs the part of shadow tone then to use second developing device 12 such as photo etc. ₂Thereby come developing to obtain the printing image of one page quality improvement.

In above-mentioned improvement example, be the characteristic that changes image by the type that changes photographic developer.But, also can select the characteristic of being duplicated, promptly by two developing devices 12 with following such way ₁With 12 ₂The developing roller method of rotating in different direction change the duplicating mode and needn't change employed photographic developer.

In addition, in the above-described embodiment, two kinds of method of development are by using two different developing devices to realize.But, also can be according to the color or the character of used photographic developer, the developing device of replacing independent outfit with the another one developing device changes visual color or characteristic.

In the embodiment according to the top multicolour copying method of saying, one page automatically sends back to the paper feeder there by two-sided/multicolour copying device 28 through the copy that duplicates for the first time process.But, also can make carton 13 ₁, 13 ₂, and 13 ₃Has a kind of effect of manually feeding paper.In this case, can directly in duplicating machine, come out through the later one page paper of the duplicating process first time, and need not pass through two-sided/multicolour copying device 28.This page paper of sending out in the duplicating machine again with hand by suitable carton 13 ₁, 13 ₂With 13 ₃Carry out multicolour copying in the feeding duplicating machine.

According to the present invention, as mentioned above, can provide certain part of the very high copy device original image of utilization factor can in a developing process, determine and developing, other parts beyond this part then can be carried out developing in another one developing process.The image that can obtain duplicating from a single original paper so just with different developing processes.

Claims (14)

1, copy device is made up of following each several part:

The photosensitive body of a surface charging;

A charging device that is used for carrying out the uniform charging on photosensitive body surface;

A flat board that is used for placing the original paper that duplicates;

An image exposing apparatus that is used for carrying out the photosensitive body face exposure, photosensitive body is charged equably by charging device, and the light beam of exposure is being represented the dull and stereotyped image of going up original paper, the exposure back forms an electric charge figure of representing the original paper image on the photosensitive body surface; And

One is used for display that formed sub-image on the photosensitive body surface is carried out video picture, and this sub-image is determined by the electric charge figure;

An indicating device is used to refer to the dull and stereotyped specialized range that goes up original paper; And

One erase device be used for on the photosensitive body surface with corresponding that part surface of the indicated original paper specialized range of indicating device beyond a part of electric charge erase; And

It is characterized in that:

Above-mentioned indicating device comprises light-emitting device, and what it can be from flat board is following to luminous point of original paper irradiation, thus the border that just can determine specialized range of moving by luminous point; Above-mentioned indicating device also comprises two setting devices, and first setting device is used for setting the border with interior specialized range, and second setting device is used for setting border specialized range in addition.

2, according to the copy device of claim 1, it is characterized in that above-mentioned display is used for to the dissimilar developer of photosensitive body surface feed, and the developer with institute's feed makes that a part of surface of photosensitive body carry out video picture, and this part surface is corresponding to the indicated original paper specialized range of indicating device.

3, according to the copy device of claim 2, it is characterized in that above-mentioned display comprises two displaies that two kinds of developers are housed respectively, can be alternately to first kind and second kind developer of photosensitive body surface feed, carry out video picture with lip-deep that part of the corresponding photosensitive body of specialized range that first setting device sets by first kind of developer, that part on the corresponding photosensitive body of the specialized range surface that sets with second setting device is then carried out video picture by second kind of developer.

4,, it is characterized in that above-mentioned first kind of developer comprises the last toner of first kind of color, and second kind of developer comprises and first kind of last toner that color is different according to the copy device of claim 3.

5,, it is characterized in that above-mentioned first kind and second kind of color are respectively black and redness according to the copy device of claim 4.

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