CN204790315U - Developer replenishing device and image forming device - Google Patents

Abstract

Problem to just unable supply developer under the condition at the electric power in drive developer replenishing device of no use provides one kind and uses the developer to form the developer replenishing device and image forming device of the image forming device supply developer of the development means of image to having. This developer replenishing device include: the developer is carried to image forming device in transport means (54, 55), conveyer pipe (56), connection diagram pictograph become device and transport means (54, 55), constitute the transport route of developer, operational means (40) drive the operation through manual to transport means (54, 55), carry the developer to image forming device.

Description

Developer supply device and image processing system

Technical field

The utility model relates to a kind of developer supply device to image processing system filling developer and comprises the image formation system of developer supply device and image processing system.

Background technology

The developer supply device [for example, referring to patent documentation 1 (Jap.P. No. 3734092 publication)] of filling developer when now the existing developer when being formed for image in the image processing systems such as duplicating machine, printer, facsimile recorder or its multi-function peripheral is consumed.

Generally speaking, developer supply device possesses for supply units such as the pumps to supply object conveying developer and for driving the driver elements such as the motor of this supply unit.

< prior art document >

< patent documentation >

Patent documentation 1:(Japan) patent No. 3734092 publication

Utility model content

< problem > to be solved in the utility model

But, according to image processing system by the environment used, also have the environment that power condition is bad.In this environment, though the electric power for driving image processing system sometimes can be obtained, the electric power being also enough to drive developer supply device cannot be obtained.In addition, because having a power failure, the situation that cannot drive developer supply device is also had.In these cases, also existing cannot the problem of filling developer.

< solves the means > of above-mentioned problem

In order to solve above-mentioned problem, the utility model provides a kind of developer supply device, it uses developer to form the image processing system filling developer of the developing cell of image to having, the feature of this developer supply device is to comprise: supply unit, to described image processing system conveying developer; Delivery pipe, connects described image processing system and described supply unit, forms the transport path of developer; Operating unit, manually carries out driving operation to described supply unit, to described image processing system conveying developer.The effect > of < utility model

By making developer supply device possess operating unit as above, manually can drive supply unit by operating unit, to image processing system conveying developer.

Accompanying drawing explanation

Fig. 1 is the figure of the outward appearance of the monochromatic laser printer of the image processing system represented as embodiment of the present utility model.

Fig. 2 is the figure of the inner structure representing described printer.

Fig. 3 represents at the other figure being provided with the image formation system of developer supply device of described printer.

Fig. 4 is the figure of the inner structure representing developer supply device.

Fig. 5 is the figure of the structure representing driving force accumulation releasing unit.

Fig. 6 is the exploded view of driving force accumulation releasing unit.

(a) ~ (c) of Fig. 7 is the figure of the action representing driving force accumulation releasing unit.

Fig. 8 is the sectional view of developer recovery unit.

Fig. 9 is the sectional view of developer recovery unit.

Figure 10 is outside drawing when observing developer supply device from face side.

Figure 11 is outside drawing when observing developer supply device from rear side.

Figure 12 is outside drawing when observing image processing system from face side.

Figure 13 is outside drawing when observing image processing system from rear side.

Figure 14 is the figure of the toner transport path represented from developer supply device to processing unit.

Figure 15 represents the figure by the structure of holding division and gear unit.

Figure 16 is the figure of the shell eliminating Figure 15.

Figure 17 represents the peristome of the left surface being arranged on developer supply device main body and it is carried out to the figure of structure of the cover of opening and closing.

Figure 18 represents to make gear unit enter the figure of the state in developer supply device main body from peristome.

Figure 19 is the figure representing the state that the gear in gear unit and developer supply device main body is meshed.

Figure 20 represents the figure by the state fixed before pawl fixes by holding division.

Figure 21 represents the figure by the state fixed after pawl fixes by holding division.

Figure 22 is the figure representing the situation that toner leaks from connecting portion when unloading delivery pipe.

Figure 23 (a) represents that toner in delivery pipe is represent that toner in delivery pipe is by the figure of the state after loopback by the figure of the state before loopback, Figure 23 (b).

Figure 24 is can the visual figure confirming the delivery pipe of inner toner.

Figure 25 is the figure of the structure representing interlock lifting unit.

Figure 26 is the figure of the variation representing operating unit.

Figure 27 is the figure of other variation representing operating unit.

Figure 28 is the figure representing the outward appearance can applying color laser printer of the present utility model.

Figure 29 is the figure of the inner structure representing described color laser printer.

Symbol description

5 developing apparatuss (developing cell)

27 developer recovery units

28 developer collecting receiving parts

28a introducing port

29 lids

29b guide portion

40 operating units

45 driving force accumulation releasing units

46 volute springs

50 developer supply devices

54 screw rods (supply unit, loopback cell)

55 pumps (supply unit, loopback cell)

56 delivery pipes

90 interlock lifting unit

T toner (developer)

Embodiment

Referring to accompanying drawing, embodiment of the present utility model is described.It should be noted that, in the various figures, for having the composed components such as the parts of identical function or shape or constituent part, in the scope that can differentiate, giving same-sign and only illustrating once, omitting repeat specification thereafter.

The figure of Fig. 1 to be the figure of the outward appearance of the monochromatic laser printer of the image processing system represented as embodiment of the present utility model, Fig. 2 be inner structure representing this monochromatic laser printer.

It should be noted that, " image processing system " that below illustrate means the sheet material making to be attached to the recording medium as record image as the toner of developer or ink, thus carries out the device of image formation.In addition, " image formation " not only means and gives the tool such as word or figure significant image for medium, also means and gives to medium the image that pattern etc. do not have meaning.In addition, " sheet material " is not limited to paper (paper), also comprises OHP sheet material, cloth etc., means the medium or original copy that developer can be made to adhere to.In addition, " paper " also comprises ground paper, postcard, envelope, thin paper, coated paper (coated paper or art paper etc.), tracing paper etc. except common paper.In following embodiment, be toner with " developer ", sheet material is described for " paper ", in addition, the size provided when each constituent part is described, material, shape, its relative configuration etc. belong to citing, recording if there is no particular limitation, is not just the purport limiting the utility model scope.

The bottom of the apparatus main body (image processing system main body) 100 of the monochromatic laser printer (hereinafter also referred to as " printer ") shown in Fig. 1, as the sheet material placement section of stacked placement many pieces of paper being configured with paper supply tray 26.Paper supply tray 26 be can centered by the not shown turning axle being configured in the bottom of apparatus main body 100 (the arrow A direction in figure) structure of rotating along the longitudinal direction.In addition, on the top of apparatus main body 100, be configured with the discharge tray 44 for placing the paper be discharged to outside device.

Below, be described with reference to the major part of Fig. 2 to printer.

Printer has the processing unit 1 for forming image with the developer of black at its image forming part.Processing unit 1 has the photoreceptor (photoconductor drum) 2 as the image-carrier at surperficial load image, as the not shown bulging cleaning device of the cleaning unit cleaned the surface of photoreceptor 2, the surface of photoreceptor 2 is carried out to the not shown Destaticizing device of electrostatic removal, as the charging device 4 of the charhing unit making the surface of photoreceptor 2 charge, as supplying the toner as developer to photoreceptor 2 and forming the developing apparatus 5 etc. of the developing cell of image (developer image).In addition, untapped toner T is accommodated in developing apparatus 5.Processing unit 1 is the structure can carrying out dismounting relative to apparatus main body 100, and can disposable replacing consumable product.

Relative to processing unit 1, be configured with the exposer 7 that the surface of photoreceptor 2 is exposed in the left side of figure.Exposer 7 is based on view data, and the surface from laser diode to photoreceptor 2 sends the structure of laser L.In addition, relative to processing unit 1, be configured with the transfer roll 23 as the image on photoreceptor 2 being transferred to the transfer printing unit on paper on the right side of figure.Transfer roll 23 is configured in the position that can abut with photoreceptor 2, forms transfer printing crack at both abutting parts.

In the bottom of apparatus main body 100, be configured with the donor rollers 32 of the feed unit being placed on the paper P on paper supply tray 26 as conveying.In addition, be configured with timing roller to 14 in the sheet transport direction downstream of this donor rollers 32 at the upstream side of above-mentioned transfer printing crack, this timing roller makes the paper carried by donor rollers 32 suspend to 14, and carries this paper in predetermined time.

In addition, in sheet transport direction than transfer printing crack more downstream, to be configured with for making the fixing device 34 of image fixing on paper be transferred, and in its downstream, to be configured with exit roller as the deliverying unit of discharging paper outside device to 37.Fixing device 34 have comprise the pyrotoxins such as not shown Halogen lamp LED fixing roller 34a, abut and the backer roll 34b rotated with this fixing roller 34a with predetermined pressure.

Then, be described with reference to the elemental motion of Fig. 2 to the printer of present embodiment.

When donor rollers 32 is rotated according to the paper supply signal from not shown control part, the paper being only placed on the superiors of the paper P on paper supply tray 26 is separated and pass out to paper supply road 31.When the front end of paper P arrives the crack portion of timing roller to 14, in order to the toner image that photoreceptor 2 is formed unified regularly (synchronous) and to revise the front end of paper P crooked, standby under the state that paper P is formed flaccid part.

Below imaging action is described, first utilizes the surface of charging device 4 pairs of photoreceptors 2 to carry out uniform noble potential charging.According to the image information from not shown reading device or computing machine etc., the surperficial irradiating laser line from exposer 7 to photoreceptor 2, the current potential of illuminated part reduces and forms electrostatic latent image.For this electrostatic latent image, supply toner T by developing apparatus 5, thus form (developing) toner image (developer image).

After photoreceptor 2 forms toner image, timing roller starts to drive to 14 and donor rollers 32, and timing (synchronous) unified with the toner image on photoreceptor 2, is transported to transfer printing crack by paper P.Then, utilize transfer roll 23, the toner image on photoreceptor 2 is transferred on carried paper P.It should be noted that, being removed by not shown bulging cleaning device because failing to be transferred to the remaining toner that paper P residues on photoreceptor 2 completely, then, by not shown Destaticizing device, electrostatic removal being carried out to the surface of photoreceptor 2.

Paper P transferred with toner image is transported to fixing device 34 by transport road after transfer printing 33.The paper P being admitted to fixing device 34 is fixed roller 34a and backer roll 34b and clamps, and this unfixed toner image is heated, pressurize and fixing on paper P.Then, fixing have the paper P of toner image to be sent to fixing rear transport road 35 from fixing device 34, and be discharged to discharge tray 44 by exit roller 37.

Fig. 3 represents at the other figure being provided with the image formation system of the developer supply device that can hold a large amount of toner of the printer of present embodiment.

In figure 3, developer supply device 50 is arranged on the right side of the apparatus main body 100 of printer, but is not limited to this position, also left side in the drawings, rear side, upside or downside can be set relative to the apparatus main body 100 of printer.

Fig. 4 illustrates the inner structure of described developer supply device 50.

As shown in Figure 4, developer supply device 50 comprise there is shell 51 apparatus main body (developer supply device main body) 200, as the storage portion of storage toner T tank 52, support tank 52 tank bracket 53, as the screw rod 54 of the supply unit to the toner T in image processing system side transfer pot 52 and pump 55, the delivery pipe 56 etc. being configured for the toner carried by screw rod 54 and pump 55 to be supplied to the transport path of image processing system side.

Be provided with lid 57 on the top of apparatus main body 200, lid 57 can rotate along the vertical direction centered by fulcrum 58.When making lid 57 (the arrow B direction of Fig. 4) rotating upward, the upper opening of apparatus main body 200, can supplement toner by tank 52 internally.In addition, tank 52 can be fixed in apparatus main body 200, also can be the structure can carrying out dismounting., when can carry out the structure of dismounting relative to apparatus main body 200, be easy to carry out toner filling operation, therefore can improve workability at tank 52.

Tank 52 within it surface has the dip plane 52a tilted in mode close to each other downward.Therefore, the toner T in tank 52 can flow in tank bracket 53 along dip plane 52a because of self gravitation.

Screw rod 54 is configured with in tank bracket 53.On an end 54a of the axis of screw rod 54, the gear 60 being provided with turning axle 59 and being supported by this turning axle 59.Gear 60 plays the effect as passive side connecting portion, and it can be connected with the following driving side connecting portion being arranged on image processing system side.When the driving force of the driver element from image processing system side is delivered to rotation axis 59 via gear 60, screw rod 54 rotates, and the toner in stirred pot support 53 is while toner is carried in the left side to Fig. 4.It should be noted that, gear 60 can with turning axle 59 integrative-structure, also can Split type structure.

In the present embodiment, as said pump 55, use the Uniaxial eccentric screw pump being called as Mono pump (mohnopump) of the pressure sending type conveying of rotary displacement type.Specifically, pump 55 by being formed as the rotor 61 of screw shaped, stator 62 and pump support 63 etc. form.Rotor 61 is connected with the end 54b being provided with the opposition side of the end 54a of said gear 60 of screw rod 54, and when screw rod 54 rotates, rotor 61 also rotates integrally with it.Particularly, in the present embodiment, be coaxial mode by the rotation center (turning axle 59) of said gear 60 is configured to screw rod 54 and rotor 61 (rotation center of pump 55), thus the abatement of parts count can be realized, cost reduces and drives the reduction of transmitting force loss.

Around rotor 61, be provided with by the elastic bodys such as elastomeric material or the stator 62 that formed as the metal material of rigid body in the mode of wrapping up rotor 61.Be formed in stator 62 and rotor 61 can be made to rotate while carry the path of toner.In addition, stator 62 supported by pump support 63 and tank bracket 53.In the toner throughput direction leading section of pump support 63, be connected with the delivery pipe 56 be made up of flexible tubing.By this delivery pipe 56, carry toner by pump 55 to developing apparatus side.

Because Mono pump utilizes the high solid-gas ratio of minimum air to carry, therefore riddle in delivery pipe 56 as the toner of powder and be fed continuously.Therefore, it is possible to carry out high quantitatively to control with the high-precision flow of continus convergence.In addition, owing to being low speed Rich thickness transportation, therefore toner can not be broken, adopts minor diameter pipe arrangement, and there is not the problem that delivery pipe 56 weares and teares, noise is also little.Also there is the advantages such as structure is simple, economy, reliability, maintainable excellence.It should be noted that, as pump 55, be not limited to Mono pump, the reciprocating pump such as gear-type pump or membrane pump etc. can also be used.

In addition, developer supply device 50 has as the screw rod 54 of above-mentioned supply unit and the operating unit 40 for carrying out manual driving operation to pump 55.Operating unit 40 has the grip part 41 in the outside of the shell 51 being configured in apparatus main body 200.Grip part 41 is configured to one in the end of the above-mentioned turning axle 59 of shell 51 outside with exposing.The operators such as user grip this grip part 41, by making grip part 41 rotate, turning axle 59 can be made to rotate, and carry out manual actuation to screw rod 54 and pump 55.

In the present embodiment, on coaxial, grip part 41 is integrally constituted relative to turning axle 59.Form grip part 41 and turning axle 59 by one, its advantage is can cut down parts count thus reduce costs, and can prevent grip part 41 from losing.In addition, also grip part 41 and turning axle 59 split can be formed, and make to be configured in non-coaxial by gear etc.By grip part 41 being configured to turning axle 59 split and the mode of dismounting can being carried out, be easy to carry out upkeep operation.In addition, grip part 41 can be pulled down keeping when not using.

In addition, the rotor 61 of screw rod 54 and pump 55 being configured to, after having carried out the positive rotation for toner being transported to developing apparatus, then rotating with contrary direction.Specifically, developer supply device 50 has driving force accumulation releasing unit 45, and this driving force accumulation releasing unit 45 accumulates driving force when screw rod 54 and rotor 61 positive rotation, and discharges the driving force of this accumulation, thus makes screw rod 54 and rotor 61 despining.About the structure of this driving force accumulation releasing unit 45, refer to aftermentioned.

In addition, developer supply device 50 possesses developer recovery unit 27 between pump 55 and delivery pipe 56, and this developer recovery unit 27 reclaims the toner be sent back to from developing apparatus side in the delivery pipe 56 of pump 55 side.Developer recovery unit 27 comprises and being formed for importing by the developer collecting receiving part 28 of the introducing port 28a of the toner of loopback and the lid 29 for opening and closing introducing port 28a.

In addition, in the present embodiment, for the ease of carrying out the transport operation of developer supply device 50 and arranging operation, developer supply device main body 200 is provided with a pair handle 64.The bight 64a of handle 64 is formed as curved, to improve security during contact handle 64.In addition, in the present embodiment, form handle 64 by the mode making shell 51 be recessed into the inside, can avoiding device main body 200 size increase.In addition, by making handle 64 be integrally formed with shell 51, manufacturing cost is reduced.

Below, with reference to Fig. 5 and Fig. 6, the structure of above-mentioned driving force accumulation releasing unit 45 is described.

Driving force accumulation releasing unit 45 is volute spring mechanisms, it comprise volute spring 46, support helix spring 46 spring suppport 47 and be provided with the spring resettlement section 49 of multiple rotation limiting units 48 that the rotation for the end to volute spring 46 limits.

As shown in Figure 6, spring suppport 47 by be configured in internal side diameter cylindrical shape inboard cylinder portion 47a, be configured in the cylindrical shape of outside diameter outer side tube part 47b, the connection wall portion 47c that inboard cylinder portion 47a and outer side tube part 47b couples together in an end side of its respective axis is formed.Inboard cylinder portion 47a, within it week is formed with the shaft insertion hole 47d that can insert the turning axle 59 be connected with above-mentioned screw rod 54.In addition, inboard cylinder portion 47a is formed with inboard slots 47e, the projection 59a outstanding from the outer peripheral face of turning axle 59 is inserted into this inboard slots 47e.By turning axle 59 being inserted the shaft insertion hole 47d in inboard cylinder portion 47, and projection 59a is inserted inboard slots 47e, inboard cylinder portion 47 is mounted to relative to the non-rotary mode of turning axle 59.

Outside side tube part 47b is formed with the outboard slot 47f for making volute spring 46 insert.Make volute spring 46 insert this outboard slot 47f, and an end 46a of the internal side diameter of volute spring 46 is configured between inboard cylinder portion 47a and outer side tube part 47b, thus by spring suppport 47 support helix spring 46.That is, volute spring 46 is stuck in outboard slot 47f and is fixed, thus an end 46a of the internal side diameter of volute spring 46 is to be supported relative to the non-rotary mode of spring suppport 47.Then, in this state, by volute spring 46 and spring suppport 47 together being accommodated in the spring resettlement section 49 of tubular, as shown in Figure 5, the other end 46b of the outside diameter of volute spring 46 is configured between spring suppport 47 and spring resettlement section 49.

The recess that multiple rotation limiting unit 48 is formed by the inner peripheral surface in spring resettlement section 49 is formed, and is configured in the circumferential direction all at equal intervals.Volute spring 46 is being accommodated under the state in spring resettlement section 49, and because of the elastic force of volute spring 46 itself, the end 46b of its outside diameter is extruded to the inner peripheral surface of spring resettlement section 49.Therefore, when the end 46b of the outside diameter of volute spring 46 be configured in rotate the relative position of limiting unit 48 with any one time, the end 46b of outside diameter can enter in relative rotation limiting unit 48, fastens.

Next, with reference to Fig. 7, the action of driving force accumulation releasing unit 45 is described.

First, the state shown in Fig. 7 (a) is the state of not carrying out driving force accumulation.From this state, along with the rotation of turning axle 59, spring suppport 47 to press in figure clockwise direction when rotating, and as Suo Shi Fig. 7 (b), the end 46a of the internal side diameter of volute spring 46 also rotates in the same direction.Comparatively speaking, the end 46b of the outside diameter of volute spring 46 then rotates limiting unit 48 with 1 and engages, thus this end 46b is restricted with the rotation that is connected of spring suppport 47.Thus, volute spring 46 is crispaturaed gradually, and driving force is accumulated in volute spring 46.

Then, when volute spring 46 have accumulated predetermined driving force, and when exceeding the end 46b of outside diameter to the power of the end 46b of sense of rotation tractive outside diameter and rotate the engaging power of limiting unit 48, engage and removed.Its result, as shown in Fig. 7 (c), the end 46b of outside diameter starts to be connected with spring suppport 47 to rotate.Like this, when have accumulated predetermined driving force, the end 46b of outside diameter starts to carry out being connected to rotate, thus volute spring 46 can be avoided to be caused breakage by excessively crispaturaing.

Then, when turning axle 59 stops the rotation, the driving force being accumulated in volute spring 46 is released because of the recuperability of volute spring 46.Therefore, turning axle 59 rotates to the opposite direction (counterclockwise) in above-mentioned direction, and when state before crispaturaing shown in Fig. 7 (a) got back to by volute spring 46, turning axle 59 stops despining.

Although eliminate diagram at this, the torque limiter of driving force transmission blocking unit can also be provided as on spring suppport 47.In this case, during accumulation driving force, if there is the torsion of more than predetermined value to put on driving force accumulation releasing unit 45, torque limiter just blocking accumulates the driving force transmission of releasing unit 45 from screw rod 54 and pump 55 to driving force.Thereby, it is possible to avoid excessive torsion put on driving force accumulation releasing unit 45 and cause breakage.Further, in this case, by carrying out driving force blocking by torque limiter, the end 46b of the outside diameter of volute spring 46 can not carry out being connected and rotate, therefore, it is possible to prevent the end 46b of this outside diameter from clashing with rotation limiting unit 48 and sending abnormal sound.

Fig. 8 and Fig. 9 is the sectional view of above-mentioned developer recovery unit 27.

As can be seen from figures 8 and 9, covering 29 is the structures can carrying out rotating centered by the fulcrum 29a being located at one end.On the other hand, in the other end of lid 29, be provided with the guide portion 29b for guiding toner T in developer collecting receiving part 28.Arrow in Fig. 8 represents the throughput direction during conveying toner from pump 55 to developing apparatus, and about this toner throughput direction, above-mentioned fulcrum 29a is configured in the upstream-side-end of lid 29, and guide portion 29b is configured in the end of downstream side of lid 29.Further, guide portion 29b is from the upstream side of described toner throughput direction towards lower trip side Pour tiltedly, close to toner mobile route side (side contrary with developer collecting receiving part 28).

Figure 10 is the outside drawing of the developer supply device observing embodiment of the present utility model from face side, and Figure 11 is the outside drawing observing this developer supply device from rear side.In addition, Figure 12 is the outside drawing of the image processing system observing embodiment of the present utility model from face side, and Figure 13 is the outside drawing observing this image processing system from rear side.

As shown in Figures 10 and 11, in the present embodiment, 1 handles 64 is set respectively at the front 200F of developer supply device main body 200 and back side 200B.Like this, by arranging handle 64 respectively on the front 200F and back side 200B of opposition side facing each other, thus developer supply device main body 200 can firmly be gripped.

In the left surface 200L side of developer supply device main body 200, be configured with for developer supply device main body 200 is fixed the holding division 65 in image processing system main body 100.It should be noted that, this left surface 200L is, under the state that developer supply device main body 200 is arranged on image processing system main body 100 side (state shown in Fig. 3), close to and the shell surface arranged towards the right flank of image processing system main body 100.Holding division 65 is formed as L-shaped, is made up of the arm 65a externally flatly given prominence to from the hole portion 200a be located on left surface 200L and the fixing pawl 65b extended below plummet in the leading section of arm 65a.In addition, holding division 65 is can the mode of movement along the vertical direction be supported.

As shown in figure 11, in the 200B side, the back side of developer supply device main body 200, be configured with the operating portion 66 for moving operation along the vertical direction to above-mentioned holding division 65.Operating portion 66 is externally given prominence to from the hole portion 200c be located at the 200B of the back side.In addition, operating portion 66 is integrally formed with holding division 65 in developer supply device main body 200.Therefore, by making operating portion 66 move along the vertical direction, thus holding division 65 can be made directly to move along the vertical direction.Like this, form operating portion 66 and holding division 65 by one, and when making the movable direction of the direction of operating of operating portion 66 and holding division 65 become equidirectional, operator can understand direction of operating intuitively, is easy to operate.In addition, due to this simple structure, therefore cost degradation, miniaturization can also be realized.

Outside aforesaid operations portion 66, in the 200B side, the back side of developer supply device main body 200, be also configured with the above-mentioned grip part 41 for carrying out manual actuation to the screw rod 54 of inside and pump 55.Grip part 41 is formed discoid, can rotate in the circumferential direction.The bight of grip part 41 is formed the curved same with above-mentioned handle 64, to improve security when touching grip part 41.In addition, at the central portion of grip part 41, be formed with the recess 41a that can insert the instruments such as screwdriver.When being difficult to make grip part 41 rotate, can, at this recess 41a insertion tool, utilize instrument that grip part 41 is rotated.

In addition, on the back side 200B of grip part 41 and developer supply device main body 200 nearby thereof, the index 42 of the direction of operating (sense of rotation) for representing grip part 41 is provided with.Like this, by arranging the index 42 of the direction of operating for representing grip part 41, the direction of operating of grip part 41 can not when operator operates, be mistaken.At this, except the plane form such as printed article or label, index 42 can also be the stereogenic with concaveconvex shape etc.In addition, by the color of grip part 41 is set as the color different from back side 200B, the identity of grip part 41 can be improved.

The left surface 200L of developer supply device main body 200 is formed with peristome 200d, peristome 200d is provided with cover 67.This peristome 200d is configured on the position corresponding with the gear 60 of the end side being arranged on above-mentioned screw rod 54 (see Fig. 4), when opening cover 67, by peristome 200d, following driving side connecting portion can be connected to gear 60.

In addition, above-mentioned delivery pipe 56 externally exposes from the left surface 200L of developer supply device main body 200.The leading section 56a of the delivery pipe 56 that this exposes, can be connected with the connecting portion 68 that the right flank 100R of the image processing system main body 100 shown in Figure 12 and Figure 13 is arranged.

In addition, as shown in figure 14, connecting portion 68 is connected with an end of the supply pipe 69 be arranged in image processing system main body 100, and the other end of supply pipe 69 is connected with processing unit 1.Therefore, when the leading section 56a of delivery pipe 56 is connected to connecting portion 68, delivery pipe 56 is connected with supply pipe 69, can from developer supply device 50 to supply toner in processing unit 1 by these pipes.

In addition, also can not by supply pipe 69, just the direct leading section 56a by delivery pipe 56 is connected to processing unit 1.In addition, in fig. 14, be the position supply toner of the upper right end side from processing unit 1, if there is no what obstacle, also unrestricted to supply position.In addition, when image processing system possess with processing unit be toner bottle (the developer collecting container) of split, also can not by delivery pipe 56 connection handling unit, but be connected to toner bottle and carry out toner replenishing.

In addition, as shown in Figure 12 and Figure 13, the right flank 100R of image processing system main body 100 is provided with the gear unit 71 be connected by holding division 70 and can carrying out with the gear 60 in above-mentioned developer supply device main body 200 that can carry out fixing and dismantle with the holding division 65 of above-mentioned developer supply device main body 200.

Figure 15 illustrates above-mentioned by the structure of holding division 70 and gear unit 71.

As shown in figure 15, the mode of giving prominence to laterally from the right flank 100R of the shell 101 of image processing system main body 100 is configured to by holding division 70.Holding division 70 is being formed with the fixing slot 70a of opening upward, the fixing pawl 65b of above-mentioned holding division 65 can insert this fixing slot 70a.In addition, the right flank 100R of image processing system main body 100 forms porose portion 100a, and be configured to the mode that gear unit 71 externally gives prominence to from this hole portion 100a.

What represent in the Figure 16 eliminating shell 101 is such, and gear unit 71 comprises the 1st gear 72 be made up of spiral gear, 3 gears be made up of spur gear i.e. the 2nd ~ 4th gear 73 ~ 75 and these gears 72 ~ 75 is held in the gear stand 76 of engagement.1st gear 72 and timing roller are connected a side of 14, by this structure, transmit from be arranged on image processing system side, as the driving force of the drive motor M of driver element.Further, driving force is delivered to the 2nd gear 73, the 3rd gear 74, the 4th gear 75 successively from the 1st gear 72.

As mentioned above, in the present embodiment, gear unit 71 obtains driving force by timing roller, but is not limited thereto, and also can obtain driving force by other parts or device.Or, also can be arranged to the mode directly obtaining driving force from drive motor M.In addition, the 2nd ~ 4th gear 73 ~ 75 be made up of spur gear can be integrative-structures with their turning axle 77 ~ 79 of support, also can be Split type structure.When gear 73 ~ 75 and turning axle 77 ~ 79 are Split type structures, be easy to carry out part exchanging or inspection.In addition, replace spur gear, also can use cross helical gear.When using cross helical gear, its advantage is the sound (noise) produced when can reduce tooth engagement compared with horizontal gear.

Figure 17 is the figure of the structure representing peristome 200d on the left surface 200L being arranged on above-mentioned developer supply device main body 200 and it is carried out to the cover 67 of opening and closing.

As shown in figure 17, cover 67 has axle portion 67a at an upper portion thereof and at a lower portion thereof, and each axle portion 67a supported by bearing portion 51a, the 53a be arranged on respectively on the inside surface of shell 51 and tank bracket 53 in the mode that can rotate.Therefore, cover 67 rotates centered by axle portion 67a, carries out opening and closing to peristome 200d.In addition, cover 67 is provided with the force application parts such as volute spring 80, by the force of this force application part 80, cover 67 is biased in (the arrow B direction in Figure 17) to the direction closed.Cover 67 becomes the state abutted with the edge of peristome 200d, thus peristome 200d tegmentum parts 67 are closed.

As mentioned above, because peristome 200d tegmentum parts 67 are closed, therefore, it is possible to the breakage preventing from user from waiting contacting gear 60 by peristome 200d and cause, or the dirt that the foreign matter such as dust enters inside and causes.In addition, because cover 67 is arranged in developer supply device main body 200, therefore without the need to carrying out dismounting to cover 67.In addition, cover 67 utilizes the force of force application part 80 and automatically closes, and therefore without the need to specially closing cap parts 67, operability is excellent.

As shown in figure 18, when making said gear unit 71 enter in developer supply device main body 200 from peristome 200d, cover 67 is squeezed by gear unit 71 and pushes away, and cover 67 rotates to opening direction (the arrow C direction of Figure 18).Then, when making gear unit 71 enter further in developer supply device main body 200, as shown in figure 19, the 4th gear 75 of gear unit 71 is meshed with the gear 60 in developer supply device main body 200.Thus, becoming can the state of transmission of drive force between the gear 60 in gear unit 71 and developer supply device main body 200.That is, the 4th gear 75 of gear unit 71 plays the function as driving side connecting portion, and it can be connected with the gear 60 as the above-mentioned passive side connecting portion be arranged in developer supply device main body 200.

And, holding division 65 is moved downwards, fixing pawl 65b is inserted by the fixing slot 70a of holding division 70, to make to be called the state shown in Figure 21 from the state shown in Figure 20, thus the relative position of developer supply device main body 200 relative to image processing system main body 100 can be fixed.Thereby, it is possible to really keep the connection status of the gear 60 in gear unit 71 and developer supply device main body 200, thus stable driving force transmission can be carried out.At this, when connecting the gear 60 in gear unit 71 and developer supply device main body 200, interfering with each other in order to avoid holding division 65 with by holding division 70, as shown in figure 20, holding division 65 can be made in advance to be moved upward.In addition, when removing the fixing of holding division 65, holding division 65 being moved upward, making fixing pawl 65b depart from fixing slot 70a.In the present embodiment, because operating portion 66 is configured to the mode more outstanding than the shell 51 of developer supply device main body 200, therefore operating portion 66 has good identifiability and operability.

Then, under the state that the gear unit 71 of image processing system is connected with developer supply device 50, when the drive motor M of image processing system main body 100 side is driven, its driving force, by each gear 72 ~ 75 of gear unit 71, is delivered to the gear 60 in developer supply device main body 200.By like this, can drive screw 54 and pump 55, by delivery pipe 56 and supply pipe 69 to the developing apparatus supply toner in processing unit.

In the present embodiment, carry out transmission of drive force by timing roller, therefore, it is possible to when timing roller rotates supply toner.In addition, also can arrange electric clutch in gear unit 71, forming can to transmitting the structure switched from state and the not transferable state of the driving force of timing roller.By like this, when without the need to carrying out toner replenishing, switching to can not the state of transmission of drive force, thus can avoid toner replenishing unnecessary.

When judging noly to carry out toner replenishing, according to the result detected the toner amount in processing unit by toner amount detecting sensor, automatically can be judged by control modules such as the CPU arranged in image processing system.Or also can arrange the indicating member (button, control flow etc.) being used to indicate toner replenishing in image processing system main body, toner replenishing is carried out in the judgement based on user etc.In addition, timing roller be substantially carry paper time drive, but also can make its carry paper time outside timing drive, supply toner.In this case, the constraint of paper sheet delivery timing can not be subject to, can at the timing supply toner of necessity.In addition, by the timing supply toner outside when paper sheet delivery, owing to there is not the rotary load that paper sheet delivery causes, therefore, it is possible to adopt lower-powered miniature motor.

In addition, developer supply device, can also manual actuation except situation about being driven by drive motor M as above.That is, the operator such as user is by the grip part 41 that the direction of arrow rotation process developer supply device 50 to index 42 (with reference to Figure 11) is arranged, and screw rod 54 and rotor 61 can be made to rotate, conveying toner.

As mentioned above, by can the mode of manual actuation developer supply device 50, even if at the bad environment of power condition or when cannot obtain required electric power because to have a power failure etc., developer supply device 50 also can be made to drive, to the developing apparatus supply toner in processing unit.At this, image processing system can not be made to drive although manually carry out toner replenishing when having a power failure, but, the time period driven by making image processing system is as the time of carrying out toner replenishing, can operational use time, can start immediately to carry out image formation after power recovery.In addition, the toner replenishing manually carried out is not limited in the situation that cannot obtain electric power, can certainly carry out when obtaining electric power.Carry out except toner replenishing except obtaining driving force from driver element, manually can also carry out toner replenishing, thus can flexible corresponding diversified demand.

But, when after toner replenishing terminates will to other image processing system supply toner etc., as shown in figure 22, when unloading delivery pipe 56 from connecting portion 68, toner T externally may leak from the first end 56a of the mouth of connecting portion 67 or delivery pipe 56.

For the problem that this toner leaks, in the present embodiment, after supply toner, loopback is carried out to the toner in delivery pipe 56.Specifically, utilize the driving force accumulated by above-mentioned driving force accumulation releasing unit 45, discharged, make screw rod 54 and pump 55 despining.

When to developing apparatus supply toner, if screw rod 54 and pump 55 (rotor 61) rotate, turning axle 59 will rotate integrally with it, thus volute spring 46 is tightened gradually, accumulation driving force [with reference to Fig. 7 (b)].Then, toner replenishing terminates and turning axle 59 stops the rotation time, the driving force accumulated in volute spring 46 is released because of the recuperability of volute spring 46, and turning axle 59 rotates to direction contrary to the above.Thus, screw rod 54 and pump 55 (rotor 61) despining, the toner in delivery pipe 56 is by loopback.Its result, the toner in delivery pipe 56 becomes the state shown in same Figure 23 (b) from the state shown in Figure 23 (a).In addition, after being all released by the driving force accumulated, the despining of screw rod 54 and pump 55 also stops.

As mentioned above, after toner replenishing terminates, by making screw rod 54 and pump 55 despining, carry out the toner in loopback delivery pipe 56, thus can prevent from toner leakage occurs when unloading delivery pipe 56 from connecting portion 68.In addition, when toner replenishing is carried out in the driving by drive motor M and when manually carrying out, the despining of this screw rod 54 and pump 55 is all performed.Therefore, after having carried out toner replenishing, be all the time toner by the state of loopback, therefore, it is possible to really prevent the toner that causes because unloading delivery pipe 56 from leaking.In addition, the amount of the toner of loopback can be adjusted by the thickness of change volute spring 46, width and the number of turns etc.

In the present embodiment, make screw rod 54 and pump 55 automatically carry out despining by driving force accumulation releasing unit 45, also can manually make them carry out despining in addition.That is, rotating to carrying the contrary direction of sense of rotation during toner to developing apparatus by being used in manually operated grip part 41, screw rod 54 and pump 55 can be made to carry out despining, the toner in loopback delivery pipe 56.

In addition, especially when manual loopback toner, as shown in figure 24, by forming delivery pipe 56 with materials such as transparent materials, visually can confirm inner toner T, thus can confirm whether toner T is by the state of loopback (remain the leak free state of toner).In addition, the index 56b representing toner loopback location can also be set on delivery pipe 56.At this, index 56b, except being the plane form such as printed article or label, can also be the stereogenic of concaveconvex shape etc.

In addition, in the present embodiment, screw rod 54 and pump 55 have both as to the developing apparatus side conveying supply unit of toner and the function as the loopback cell from developing apparatus side loopback toner, also can arrange the loopback cell different from supply unit separately in addition.

As mentioned above, in the present embodiment, prevent from that toner occurs when unloading delivery pipe 56 by loopback toner to leak, but according to by the toner of loopback, situation that toner may be occurred the mobility reduction of toner after being compressed, toner solidifies etc. tank 52 in.To in the structure of screw rod 54 movement, (with reference to Fig. 4), toner are by after loopback with himself weight for toner in this tank 52 of especially present embodiment, and the toner in tank 52 is pushed lifting.Usually, toner is transferred with the state containing air, but after toner is sent back to tank 52, toner is caused the air between toner to reduce by compressing, and the mobility that therefore toner occur reduces or toner solidifies.Therefore, preferably avoid to tank 52 loopback toner as far as possible.

To this, in the present embodiment, as mentioned above, be provided with for reclaiming by the developer recovery unit 27 of the toner of loopback.

As shown in Figure 9, when from developing apparatus to pump 55 loopback toner, become negative pressure in delivery pipe 56, lid 29 is pulled up because of this negative pressure and rotates upward, and introducing port 28a is opened.Then, accommodated in developer collecting receiving part 28 by introducing port 28a by the toner T of loopback.In addition, in the present embodiment, the guide portion 29b of lid 29 receives by the toner T of loopback, and is guided in developer collecting receiving part 28 by this toner T, therefore, it is possible to accommodate toner T efficiently in developer collecting receiving part 28.In addition, guide portion 29b is sent back to toner T or the air of pump 55 side by receiving, and can produce the power in open direction at lid 29.Thus, lid 29 becomes and is easy to open, thus can accommodate more toner T in developer collecting receiving part 28.

Then, after the loopback release of toner, lid 29 rotates to closing direction because of himself weight.In addition, as shown in Figure 8, when carrying toner T from pump 55 to developing apparatus, become malleation in delivery pipe 56, lid 29 is pressed down because of this malleation, keeps the state that introducing port 28a closes.Therefore, during to developing apparatus supply toner, toner T can not by collecting to developer collecting receiving part 28, and the increment of toner can not reduce.

As mentioned above, according to the present embodiment, when toner is by loopback, can accommodate by the toner of loopback in developer collecting receiving part 28, therefore, it is possible to reduce the amount being sent back to the toner of tank 52.Thereby, it is possible to suppress the compression of the toner in tank 52 and the reduction of consequential toner fluidity or toner to be solidified.

In addition, can also recycle to the toner in developer collecting receiving part 28 by collecting.Such as, by developer collecting receiving part 28 is configured to removable mode, developer collecting receiving part 28 can be pulled down, move on to tank 52 by by the toner of accommodating.In addition, the developer conveying unit for carrying toner from developer collecting receiving part 28 to tank 52 can also be set.

Figure 25 represents the figure from the structure of above-mentioned different embodiment.

In the embodiment shown in Figure 25, be provided with interlock lifting unit 90 between turning axle 59 and grip part 41, this interlock lifting unit 90 only removes the interlock of turning axle 59 and grip part 41 when loopback developer.At this, adopt as interlock lifting unit 90 one-way clutch 91 only transmitting the driving force that one direction rotates.

In the embodiment shown in Figure 25, when making grip part 41 to rotate to the mode of developing apparatus conveying toner, transmit due to driving can be carried out from grip part 41 to turning axle 59, therefore, same with above-mentioned embodiment, screw rod 54 and pump 55 carry out positive rotation, can to developing apparatus side conveying toner.On the other hand, under screw rod 54 and pump 55 carry out despun situation, the interlock of grip part 41 and turning axle 59 is removed by one-way clutch 91.Therefore, turning axle 59 integrally carries out despining with screw rod 54 and pump 55, but grip part 41 non rotating.That is, even if screw rod 54 and pump 55 carry out despining, but despining can't be carried out in grip part 41 thereupon, therefore, it is possible to prevent grip part 41 from carrying out unnecessary despining.

At this, interlock lifting unit 90 is not limited to one-way clutch 91, such as, also can be the connecting portion of the coupling type that can be connected with grip part 41 turning axle 59 in the axial direction and be separated.

In addition, as shown in figure 25, protuberance 41b can be set on grip part 41.By like this, the identity of grip part 41, operability can be improved.In addition, by the bight of protuberance 41b is formed as curved, security when gripping grip part 41 can be improved.

In addition, as shown in figure 26, the anti-slip part 41c of concaveconvex shape can be set at the outer surface of grip part 41.By like this, can grip grip part 41 on the spot, improve operability.

In addition, as shown in figure 27, operating unit 40 also can be made up of with the grip part 41 of the non-coaxial end of turning axle 59 operating rod portion 43 extended on the direction orthogonal with turning axle 59 and being arranged in operating rod portion 43.By adopting the operating unit 40 of this structure, the spinning movement needed for operation can be reduced, and can operate with light work power, therefore, it is possible to improve operability.In addition, the design freedom of grip part 41 can also be improved.

In addition, operating unit 40 can be configured to the mode can carrying out dismounting relative to developer supply device 50.In this case, can arrange on developer supply device 50 can the resettlement section of housing operational unit 40, the loss of the operating unit 40 pulled down during to prevent from not using.

Above, be illustrated about embodiment of the present utility model, but the utility model is not limited to above-mentioned embodiment.In the above-described embodiment, be illustrated for situation structure of the present utility model being applied to the developer supply device be arranged on outside image processing system, in addition, developer supply device also can be the structure be installed in image processing system.In addition, developer supply device also can be the structure can only carrying out developer supply with manual operation.In addition, developer supply device can also be the structure of the drive source had alone.

In addition, structure of the present utility model, except above-mentioned monochromatic laser printer, can also be applied to color laser printer.

Below, an example of the structure can applying color laser printer of the present utility model is described.

The figure of Figure 28 to be the figure representing the outward appearance can applying color laser printer of the present utility model, Figure 29 be inner structure representing this color laser printer.

The bottom of the apparatus main body (image processing system main body) 100 of the printer shown in Figure 28, is configured with as can be stacked and hold the paper feeding cassette 30 of the sheet material receptacle of many pieces of paper.Paper feeding cassette 30 can be extracted out or insertion along anterior-posterior horizontal direction (in figure arrow Q direction) relative to apparatus main body 100.On the top of paper feeding cassette 30, be configured with the protecgulum 8 for internal check.Protecgulum 8 can relative to apparatus main body 100 (in figure arrow S direction) opening and closing along the longitudinal direction.Specifically, as shown in figure 29, protecgulum 8 is configured to the mode that can rotate centered by the turning axle 12 being configured in apparatus main body 100 bottom.In addition, on the top of apparatus main body 100, be configured with discharge tray 44.

Protecgulum 8 within it mask has double surface unit 9.Described double surface unit 9 has conveying housing 9a, is formed with the reversion transport road 110 of paper in the rear side of this conveying housing 9a.In addition, a part for the paper transportation path of inner face side constituent apparatus main body 100 side of conveying housing 9a, and have as the secondary transfer roller 20 of transfer member, timing roller to 14 a timing driven roller 142.Timing driven roller 142 forms 2 timing rollers in a pair to 14 with the timing driven voller 141 of main body side.

Form The Ru.

Below, be described with reference to the major part of Figure 29 to image processing system.

Image processing system its image forming part have for utilize to decompose with the look of coloured image black corresponding to composition, yellow, magenta, cyan assorted developer to form 4 processing units 1K, 1Y, 1M, 1C of image.Each processing unit 1K, 1Y, 1M, 1C have collecting not homochromy mutually toner bottle 6K, 6Y, 6M, 6C of not using toner.In addition structure is identical.

For 1 processing unit 1K, its structure is described, processing unit 1K has photoreceptor (photoconductor drum) 2K as the image-carrier at surperficial load image, the bulging cleaning device 3K as the cleaning unit cleaned the surface of photoreceptor 2K, the surface of photoreceptor 2K is carried out the not shown Destaticizing device of electrostatic removal, as the charging device 4K of the charhing unit making the surface of photoreceptor 2K charge and as forming the developing apparatus 5K etc. of the developing cell of image (developer image) to supply developer on photoreceptor 2K.Processing unit 1K is arranged in the main body of image processing system in dismounting mode freely, can disposable replacing consumable product.

Manage the top of unit 1K, 1Y, 1M, 1C throughout, be configured with the exposer 7 as the exposing unit making the surface of each photoreceptor 2K, 2Y, 2M, 2C expose.This exposer 7 sends laser based on view data from laser diode.

In addition, manage the below of unit 1K, 1Y, 1M, 1C throughout, be configured with transfer device 15.Transfer device 15 has in the face of 4 primary transfer roller 19K of each photoreceptor 2K, 2Y, 2M, 2C, 19Y, 19M, 19C, the intermediate transfer belt 16 being erected at circular flow between each primary transfer roller 19K, 19Y, 19M, 19C and driven roller 18 and driven voller 17, the secondary transfer roller 20 configure in the face of driven roller 18, is with cleaning device 21 and cleans and support roller 22 etc.If the 1st image-carrier being colors with photoreceptor 2K, 2Y, 2M, 2C, then intermediate transfer belt 16 is the 2nd image-carrier of its image of synthesis.

In the bottom of image processing system, be provided with and can hold the many pieces of paper feeding cassettes 30 as the paper P of sheet material and the donor rollers 32 as the feed unit sent to paper supply road 31 from paper feeding cassette 30 by paper P.Near the end on paper supply road 31, be configured with paper is suspended timing roller to 14.

This timing roller is positioned at the upstream side of intermediate transfer belt 16 near position to 14, in order to make the toner image on intermediate transfer belt 16 and top of form position accurately involutory, paper P is first made to relax, then be formed at the toner image on intermediate transfer belt 16 be about to be transferred on paper P by secondary transfer printing crack before, send paper P with predetermined timing to secondary transfer printing crack.

This secondary transfer roller 20 is generally exerted a force by Compress Spring 25 and to tend to the situation of intermediate transfer belt 16 in the majority.But, operate in the image processing system of (full-frontoperation) type before completely, be mostly, in the side, front of intermediate transfer belt 16 configuration double surface unit 9, to be therefore difficult to realize the miniaturization around Compress Spring 25.Therefore, as shown in figure 29, when oblique configuration transfer printing crack, effectively can utilize the dead angle of double surface unit 9, thus the miniaturization of the fore-and-aft direction of image processing system can be realized.

Above secondary transfer roller 20 with the crack portion of driven roller 18, be configured with transport road 33 after transfer printing.After this transfer printing transport road 33 end near be provided with fixing device 34.Fixing device 34 has the fixing roller 34a that comprises the pyrotoxins such as not shown Halogen lamp LED and abuts and the backer roll 34b rotated with predetermined pressure with this fixing roller 34a.

Above fixing device 34, be configured with fixing rear transport road 35, at the end of fixing rear transport road 35, branch into ADF road 36 and reversion transport road 110.In the side of fixing rear transport road 35, be configured with the switching part 120 of wobble drive centered by axis of swing 120a.Be configured with as paper being discharged to the exit roller of the paper feeder unit outside machine to 37 at the end on ADF road 36.Reversion transport road 110 collaborates at its end and paper supply road 31, is configured with reversion conveying roller to 130 in the midway of reversion transport road 110.In addition, on the top of image processing system, be configured with the discharge tray 44 making its upper cap recessed to the inside.

Between transfer device 15 and paper feeding cassette 30, be configured with the powder receptacle 10 (toner receptacle) holding used toner.Powder receptacle 10 is arranged in image processing system main body in dismounting mode freely.

In the image processing system of present embodiment, due to transfer paper conveying relation, need from donor rollers 32 to secondary transfer roller 20 to a certain degree away from space.Therefore and produce dead angle powder receptacle 10 is set, to realize the miniaturization of image processing system entirety.

It should be noted that, as the image processing system of embodiment of the present utility model, describe about laser printer at this, in addition, the utility model also can be applicable to duplicating machine, facsimile recorder, printer, printing machine, ink-jet recording apparatus any one, or the combination wherein multi-function peripheral of more than at least 2.

Then, the elemental motion of this image processing system is described.

In Figure 29, when donor rollers 32 rotates according to the paper supply signal of the control part from not shown image processing system, what be placed on the paper P on paper feeding cassette 30 is only that the paper of upper is separated and be sent to paper supply road 31.When the front end of paper P arrives the crack portion of timing roller to 14, in order to the unified timing (same period) of toner image that formed on intermediate transfer belt 16, and the front end of correction paper P is crooked, standby under paper P is formed lax state.

About imaging action, be described for 1 processing unit 1K, first, utilize the surface charging of charging device 4K to photoreceptor 2K to make it to become uniform noble potential.Based on the surperficial illuminating laser beam L of view data from exposer 7 to photoreceptor 2K, the current potential of irradiated part declines and forms electrostatic latent image.Untapped black toner is supplied to developing apparatus 5K from toner bottle 6K.

Utilize developing cell 5K toner to be transferred to the surface portion of the photoreceptor 2K being formed with electrostatic latent image, form the toner image (development) of black.Then, the toner image be formed on photoreceptor 2K is transferred on intermediate transfer belt 16.

Drum cleaning device 3K removes the remaining toner be attached on the photoreceptor 2K surface after intermediate transfer step.Removed remaining toner, by not shown used toner supply unit, is transported to the used toner resettlement section being positioned at processing unit 1K and reclaims.In addition, not shown Destaticizing device removes the residual charge of the photoreceptor 2K after cleaning.

At assorted processing unit 1Y, 1M, 1C, on photoreceptor 2Y, 2M, 2C, form toner image too, be transferred on intermediate transfer belt 16 in the mode making assorted toner image overlap each other.

When assorted toner image is transferred on intermediate transfer belt 16 in the mode overlapped each other, timing roller starts to drive to 14 and donor rollers 32, timing (same period) unified with the overlapping toner image be transferred on intermediate transfer belt 16, delivers to secondary transfer roller 20 by paper P.Then, utilize the secondary transfer printing crack of secondary transfer roller 20, the toner image on intermediate transfer belt 16 is transferred on the paper P sent here.

Paper P transferred with toner image is transported to fixing device 34 by transport road after transfer printing 33.The paper P sending into fixing device 34 is clamped between fixing roller 34a and backer roll 34b, and this toner image be not fixed is heated, pressurizes and is fixed on paper P.Fixing have the paper P of toner image to be sent to fixing rear transport road 35 from fixing device 34.

Send the timing of paper P from fixing device 34, switching part 120 is positioned at the position shown in the solid line of Figure 29, is opened near the end of fixing rear transport road 35.Then, the paper P be sent from fixing device 34 after by fixing rear transport road 35, by exit roller to 37 clampings, is discharged to discharge tray 44.

When carrying out printed on both sides, when by exit roller to the rear end of the paper P of 37 conveyings through transport road 35 after fixing after, switching part 120 swings to the dotted line position of Figure 29, is closed near the end of fixing rear transport road 35.Almost meanwhile, exit roller is to 37 despinings, and paper P is entered reversion transport road 110 by counter sending.

The paper P be transported in reversion transport road 110 passes through reversion conveying roller to 130, arrive timing roller to 14, and be sent with the back side toner image time of aiming at be formed on intermediate transfer belt 16, when paper P is by secondary transfer roller 20, toner image is transferred to the back side of paper P.Then, when the toner image at the back side of paper P be fixed device 34 fixing after, be discharged to discharge tray 44 via fixing rear transport road 35, ADF road 36, exit roller to 37 successively.

In addition, after the toner image on intermediate transfer belt 16 is transferred to paper P, intermediate transfer belt 16 is attached with remaining toner.Band cleaning device 21 is utilized to remove this remaining toner from intermediate transfer belt 16.Then, from the toner that intermediate transfer belt 16 is removed, by not shown used toner supply unit, be transported to the not shown entrance of powder receptacle 10, and be recycled in powder receptacle 10.

The utility model at least comprises following structure.

[structure 1]

Structure 1 uses developer to form the developer supply device of the image processing system filling developer of the developing cell of image to having, and it comprises: supply unit, to described image processing system conveying developer; Delivery pipe, connects described image processing system and described supply unit, forms the transport path of developer; Operating unit, manually carries out driving operation to described supply unit, to described image processing system conveying developer.

By possessing this operating unit, can manual actuation supply unit, to image processing system conveying developer.

[structure 2]

Structure 2 is the developer supply devices according to structure 1, and it has loopback cell, and the developer in described delivery pipe is transmitted back to described supply unit side from described image processing system side by this loopback cell.

By utilizing loopback cell that developer is transmitted back to supply unit side from image processing system side, can prevent the developer when unloading delivery pipe from leaking from delivery pipe.

[structure 3]

Structure 3 is the developer supply devices according to structure 2, it has driving force accumulation releasing unit, the accumulation of this driving force accumulation releasing unit is to the driving force of described supply unit during described image processing system conveying developer, and discharge accumulated driving force in stopping to during described image processing system conveying developer thereupon, utilize the driving force being accumulated releasing unit release by described driving force, the developer in described delivery pipe is transmitted back to described supply unit side from described image processing system side by described loopback cell.

In the case, utilize and accumulate by driving force the driving force that releasing unit liberates, loopback cell can loopback developer automatically, therefore can save the time of developer loopback operations.

[structure 4]

Structure 4 is the developer supply devices according to structure 3, wherein, use volute spring mechanism as described driving force accumulation releasing unit, driving force is accumulated by helical spring crispaturaing by this volute spring mechanism, and discharges accumulated driving force by described helical spring recuperability.

Volute spring mechanism can be adopted as driving force accumulation releasing unit.

[structure 5]

Structure 5 is the developer supply devices according to structure 3 or 4, it has driving force transmission blocking unit, if this driving force transmission blocking unit has the torsion of more than predetermined value to put on described driving force accumulation releasing unit when accumulating driving force, just blocking is to the driving force transmission of described driving force accumulation releasing unit.

By possessing this driving force transmission blocking unit, the breakage caused because excessive torsion is applied to driving force accumulation releasing unit can be prevented.

[structure 6]

Structure 6 is the developer supply devices according to any one of structure 2 ~ 5, wherein, uses described transmission unit as described loopback cell.

By supply unit is used as loopback cell, special loopback cell can be set.

[structure 7]

Structure 7 is the developer supply devices according to structure 6, and it has interlock lifting unit, and this interlock lifting unit, when by described supply unit loopback developer, removes the interlock of described supply unit and described operating unit.

By possessing this interlock lifting unit, can prevent developer from being carried out unnecessary driving by operating unit during loopback.

[structure 8]

Structure 8 is the developer supply devices according to any one of structure 2 ~ 7, and it has developer recovery unit, and the recovery of this developer recovery unit is sent back to the developer in the described delivery pipe of described supply unit side from described image processing system side.

By possessing this developer recovery unit, by reclaiming developer, make to be reduced by the developer level of loopback, thus the compression of the developer caused by developer loopback and the mobility reduction thereupon occurred can be suppressed or solidify.

[structure 9]

Structure 9 is the developer supply devices according to structure 8, and wherein, described developer recovery unit has: developer collecting receiving part, has the introducing port be communicated with described delivery pipe, and accommodates the developer be imported into by described introducing port; Lid, closing described introducing port to during the conveying developer of described image processing system side, opening described introducing port to during described supply unit side loopback developer.

By possessing this lid, (only when developer is by loopback) introducing port can be opened only where necessary, and by developer containing in developer collecting receiving part.

[structure 10]

Structure 10 is the developer supply devices according to structure 9, wherein, described lid be to being closed because becoming malleation in described delivery pipe during the conveying developer of described image processing system side to during described supply unit side loopback developer because becoming negative pressure in described delivery pipe by the structure opened.

As mentioned above, by utilizing malleation and negative pressure to make lid carry out opening and closing, lid automatic shutter can be made, therefore, it is possible to save the time of lid opening and closing operations.

[structure 11]

Structure 11 is the developer supply devices according to structure 9 or 10, and wherein, described lid has guide portion, and this guide portion receives the developer being sent back to described supply unit side, and is guided in described developer collecting receiving part by this developer.

By this guide portion, guide portion can be utilized to be guided in developer collecting receiving part by developer, thus developer can be reclaimed efficiently.

[structure 12]

Structure 12 is the developer supply devices according to structure 11, wherein, described guide portion be configured to by receive be sent back to the developer of described supply unit side or air and make described lid generate evolution to the orientation of power.

By guide portion is configured to this orientation, guide portion, by receiving by the developer of loopback or air, can generate the power in the direction making lid open, therefore be easy to uncap.

[structure 13]

Structure 13 is the developer supply devices according to any one of structure 1 ~ 12, and wherein, described supply unit is to described developing cell conveying developer.

According to this structure, compared with the situation to the component feed developer beyond developing cell, the structure of the developer transport path from developer supply device to developing cell can be simplified.

[structure 14]

Structure 14 is the developer supply devices according to any one of structure 1 ~ 13, and wherein, described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

By this structure, when not filling developer, developer supply device can be separated from image processing system main body.Thus, when carrying out printing action (image formation action), there is no need for the space that developer supply device is set, thus printing action can be carried out in little space.In addition, when using multiple stage image processing system, the connecting object of developer supply device can be changed simply.Thereby, it is possible to a developer supply device to multiple stage image processing system filling developer.

[structure 15]

Structure 15 is the developer supply devices according to structure 14, and wherein, described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

By this structure, when use has the multiple stage image processing system of identical connecting portion, the connecting object of the delivery pipe of developer supply device easily can be changed.Thereby, it is possible to a developer supply device to multiple stage image processing system filling developer.

[structure 16]

Structure 16 is a kind of image formation systems, it image processing system comprising the developer supply device according to any one of structure 1 ~ 15 and be connected with described developer supply device.

From the structure of the outside filling developer of image processing system, can provide and image processing system both can be kept not maximize, the image formation system of a large amount of developer can be used again by adopting.In addition, according to image formation system of the present utility model, even if at the bad environment of power condition or when waiting because having a power failure and the electric power of necessity cannot be obtained, developer supply device also manually can be driven, to image processing system filling developer.At this, image processing system can not be made to drive although manually carry out toner replenishing when having a power failure, but, the time period driven by making image processing system is as the time of carrying out toner replenishing, can operational use time, can start immediately to carry out image formation after power recovery.In addition, the toner replenishing manually carried out is not limited in the situation that cannot obtain electric power, can certainly carry out when obtaining electric power.Carry out except toner replenishing except obtaining driving force from driver element, manually can also carry out toner replenishing, thus can flexible corresponding diversified demand.

Claims (81)

1. a developer supply device, it uses developer to form the image processing system filling developer of the developing cell of image to having, and it is characterized in that comprising:

Supply unit, to described image processing system conveying developer;

Delivery pipe, connects described image processing system and described supply unit, forms the transport path of developer; And

Operating unit, manually carries out driving operation to described supply unit, to described image processing system conveying developer.

2. developer supply device according to claim 1, is characterized in that, this developer supply device has:

Loopback cell, is transmitted back to described supply unit side by the developer in described delivery pipe from described image processing system side.

3. developer supply device according to claim 2, is characterized in that, this developer supply device has:

Driving force accumulation releasing unit, accumulates the driving force to described supply unit during described image processing system conveying developer, and discharges accumulated driving force in stopping to during described image processing system conveying developer thereupon,

Utilize the driving force being accumulated releasing unit release by described driving force, the developer in described delivery pipe is transmitted back to described supply unit side from described image processing system side by described loopback cell.

4. developer supply device according to claim 3, is characterized in that,

Use volute spring mechanism as described driving force accumulation releasing unit, driving force is accumulated by helical spring crispaturaing by this volute spring mechanism, and discharges accumulated driving force by described helical spring recuperability.

5. developer supply device according to claim 3, is characterized in that, this developer supply device has,

Driving force transmission blocking unit, if there is the torsion of more than predetermined value to put on described driving force accumulation releasing unit when accumulating driving force, just blocking is to the driving force transmission of described driving force accumulation releasing unit.

6. developer supply device according to claim 4, is characterized in that, this developer supply device has,

Driving force transmission blocking unit, if there is the torsion of more than predetermined value to put on described driving force accumulation releasing unit when accumulating driving force, just blocking is to the driving force transmission of described driving force accumulation releasing unit.

7. the developer supply device according to any one of claim 2 to 6, is characterized in that,

Described transmission unit is used as described loopback cell.

8. developer supply device according to claim 7, is characterized in that, this developer supply device has,

Interlock lifting unit, when by described supply unit loopback developer, removes the interlock of described supply unit and described operating unit.

9. the developer supply device according to any one of claim 2 to 6, is characterized in that, this developer supply device has:

Developer recovery unit, reclaims the developer be sent back to from described image processing system side in the described delivery pipe of described supply unit side.

10. developer supply device according to claim 7, is characterized in that, this developer supply device has:

Developer recovery unit, reclaims the developer be sent back to from described image processing system side in the described delivery pipe of described supply unit side.

11. developer supply devices according to claim 8, is characterized in that, this developer supply device has:

Developer recovery unit, reclaims the developer be sent back to from described image processing system side in the described delivery pipe of described supply unit side.

12. developer supply devices according to claim 9, is characterized in that,

Described developer recovery unit has:

Developer collecting receiving part, has the introducing port be communicated with described delivery pipe, and accommodates the developer be imported into by described introducing port; And

Lid, closing described introducing port to during the conveying developer of described image processing system side, opening described introducing port to during described supply unit side loopback developer.

13. developer supply devices according to claim 10, is characterized in that,

Described developer recovery unit has:

Developer collecting receiving part, has the introducing port be communicated with described delivery pipe, and accommodates the developer be imported into by described introducing port; And

Lid, closing described introducing port to during the conveying developer of described image processing system side, opening described introducing port to during described supply unit side loopback developer.

14. developer supply devices according to claim 11, is characterized in that,

Described developer recovery unit has:

Developer collecting receiving part, has the introducing port be communicated with described delivery pipe, and accommodates the developer be imported into by described introducing port; And

Lid, closing described introducing port to during the conveying developer of described image processing system side, opening described introducing port to during described supply unit side loopback developer.

15. developer supply devices according to claim 12, is characterized in that,

Described lid be to being closed because becoming malleation in described delivery pipe during the conveying developer of described image processing system side to during described supply unit side loopback developer because becoming negative pressure in described delivery pipe by the structure opened.

16. developer supply devices according to claim 13, is characterized in that,

Described lid be to being closed because becoming malleation in described delivery pipe during the conveying developer of described image processing system side to during described supply unit side loopback developer because becoming negative pressure in described delivery pipe by the structure opened.

17. developer supply devices according to claim 14, is characterized in that,

Described lid be to being closed because becoming malleation in described delivery pipe during the conveying developer of described image processing system side to during described supply unit side loopback developer because becoming negative pressure in described delivery pipe by the structure opened.

18. developer supply devices according to claim 12, is characterized in that,

Described lid has guide portion, and this guide portion receives the developer being sent back to described supply unit side, and is guided in described developer collecting receiving part by this developer.

19. developer supply devices according to claim 13, is characterized in that,

Described lid has guide portion, and this guide portion receives the developer being sent back to described supply unit side, and is guided in described developer collecting receiving part by this developer.

20. developer supply devices according to claim 14, is characterized in that,

Described lid has guide portion, and this guide portion receives the developer being sent back to described supply unit side, and is guided in described developer collecting receiving part by this developer.

21. developer supply devices according to claim 15, is characterized in that,

Described lid has guide portion, and this guide portion receives the developer being sent back to described supply unit side, and is guided in described developer collecting receiving part by this developer.

22. developer supply devices according to claim 16, is characterized in that,

Described lid has guide portion, and this guide portion receives the developer being sent back to described supply unit side, and is guided in described developer collecting receiving part by this developer.

23. developer supply devices according to claim 17, is characterized in that,

Described lid has guide portion, and this guide portion receives the developer being sent back to described supply unit side, and is guided in described developer collecting receiving part by this developer.

24. developer supply devices according to claim 18, is characterized in that,

Described guide portion be configured to by receive be sent back to the developer of described supply unit side or air and make described lid generate evolution to the orientation of power.

25. developer supply devices according to claim 19, is characterized in that,

Described guide portion be configured to by receive be sent back to the developer of described supply unit side or air and make described lid generate evolution to the orientation of power.

26. developer supply devices according to claim 20, is characterized in that,

Described guide portion be configured to by receive be sent back to the developer of described supply unit side or air and make described lid generate evolution to the orientation of power.

27. developer supply devices according to claim 21, is characterized in that,

Described guide portion be configured to by receive be sent back to the developer of described supply unit side or air and make described lid generate evolution to the orientation of power.

28. developer supply devices according to claim 22, is characterized in that,

Described guide portion be configured to by receive be sent back to the developer of described supply unit side or air and make described lid generate evolution to the orientation of power.

29. developer supply devices according to claim 23, is characterized in that,

Described guide portion be configured to by receive be sent back to the developer of described supply unit side or air and make described lid generate evolution to the orientation of power.

30. developer supply devices according to any one of claim 1 to 6, is characterized in that,

Described supply unit is to described developing cell conveying developer.

31. developer supply devices according to any one of claim 1 to 6, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

32. developer supply devices according to claim 7, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

33. developer supply devices according to claim 8, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

34. developer supply devices according to claim 9, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

35. developer supply devices according to claim 10, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

36. developer supply devices according to claim 11, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

37. developer supply devices according to claim 12, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

38. developer supply devices according to claim 13, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

39. developer supply devices according to claim 14, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

40. developer supply devices according to claim 15, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

41. developer supply devices according to claim 16, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

42. developer supply devices according to claim 17, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

43. developer supply devices according to claim 18, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

44. developer supply devices according to claim 19, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

45. developer supply devices according to claim 20, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

46. developer supply devices according to claim 21, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

47. developer supply devices according to claim 22, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

48. developer supply devices according to claim 23, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

49. developer supply devices according to claim 24, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

50. developer supply devices according to claim 25, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

51. developer supply devices according to claim 26, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

52. developer supply devices according to claim 27, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

53. developer supply devices according to claim 28, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

54. developer supply devices according to claim 29, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

55. developer supply devices according to claim 30, is characterized in that,

Described developer supply device is configured to the mode can carrying out dismounting relative to described image processing system.

56. developer supply devices according to claim 31, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

57. developer supply devices according to claim 32, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

58. developer supply devices according to claim 33, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

59. developer supply devices according to claim 34, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

60. developer supply devices according to claim 35, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

61. developer supply devices according to claim 36, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

62., according to developer supply device according to claim 37, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

63., according to developer supply device according to claim 38, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

64., according to developer supply device according to claim 39, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

65. developer supply devices according to claim 40, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

66. developer supply devices according to claim 41, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

67. developer supply devices according to claim 42, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

68. developer supply devices according to claim 43, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

69. developer supply devices according to claim 44, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

70. developer supply devices according to claim 45, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

71. developer supply devices according to claim 46, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

72. developer supply devices according to claim 47, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

73. developer supply devices according to claim 48, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

74. developer supply devices according to claim 49, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

75. developer supply devices according to claim 50, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

76. developer supply devices according to claim 51, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

77. developer supply devices according to claim 52, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

78. developer supply devices according to claim 53, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

79. developer supply devices according to claim 54, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

80. developer supply devices according to claim 55, is characterized in that,

Described delivery pipe is configured to the mode can carrying out dismounting relative to the connecting portion for importing developer in described image processing system.

81. 1 kinds of image formation systems, is characterized in that comprising:

Developer supply device according to any one of claim 1 to 80; And

The image processing system be connected with described developer supply device.