CN100445897C - Electrophotographic image forming apparatus and process cartridge - Google Patents

Electrophotographic image forming apparatus and process cartridge Download PDF

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Publication number
CN100445897C
CN100445897C CNB2005100826328A CN200510082632A CN100445897C CN 100445897 C CN100445897 C CN 100445897C CN B2005100826328 A CNB2005100826328 A CN B2005100826328A CN 200510082632 A CN200510082632 A CN 200510082632A CN 100445897 C CN100445897 C CN 100445897C
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CN
China
Prior art keywords
developer
cartridge
driving force
volume
sealing
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Expired - Fee Related
Application number
CNB2005100826328A
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Chinese (zh)
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CN1725128A (en
Inventor
佐藤昌明
茶谷一夫
宫部滋夫
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Canon Inc
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Canon Inc
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Publication of CN1725128A publication Critical patent/CN1725128A/en
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Publication of CN100445897C publication Critical patent/CN100445897C/en
Expired - Fee Related legal-status Critical Current
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Abstract

The present invention relates to an electrophotographic image forming device; images can be formed on a recording medium; and a treatment box can be disassembled and assembled. The device has a plurality of installation parts to which the treatment box can be disassembled and assembled relatively, a motor and a drive force transmission device. The treatment box is provided with a sensitometric drum for electrophotography, a developing roller that is used for developing electrostatic latent images which are formed on the sensitometric drum for electrophotography, a housing part of developer that is used for housing the developer which is used for developing the electrostatic latent images by the developing roller, a supply mouth of the developer that is used for providing the developer in the housing part for the developing roller, a closing component that is used for closing the supply mouth and that can be opened, and an opening device that is used for removing the closing component from the supply mouth so as to open the supply mouth. In order to open the supply mouth that is arranged in the treatment box on each installation part, the drive force transmission device can selectively transmit the drive force of the motor to the opening device.

Description

Electrophotographic image forms device
Technical field
The present invention relates to a kind of electrophotographic image and form device.
Background technology
In the prior art, form in the device at the electrophotographic image that uses electrophotographic image formation method to form image on recording medium, the handle box form is applied.Described handle box form is meant that Electrophtography photosensor makes it to become one with acting on the treating apparatus boxlikeization of this Electrophtography photosensor, thereby this cartridge can be contained on the image processing system main body, and it can be pulled down from described apparatus main body.Adopt such handle box mode, the user can oneself carry out the maintenance of device and need not rely on the maintenance service personnel, therefore, can obviously improve the operability of device.Just because of this point, this handle box form forms in the device at electrophotographic image and has obtained widespread use.
In addition, Delevoping cartridge is the cartridge that developer roll and developer collecting receiving part boxlikeization are made it to become one, and wherein, described developer collecting receiving part is used to accommodate the developer that the electrostatic latent image that is formed by described developer roll is developed on the electronic photographic sensitive drum.Make this Delevoping cartridge can be installed to that electrophotographic image forms on the apparatus main body and also can be with its form of pulling down from apparatus main body, promptly the Delevoping cartridge form be widely known by the people.
In such handle box and Delevoping cartridge, the developer feeding mouth of being located at described developer collecting receiving part is closed parts and is sealing.Before bringing into use these cartridges, do not supply described developer to described developer roll, remove described packaged unit during use, described supply opening is opened.Thus, give described developer roll with the developer feeding in the described developer collecting receiving part.
In the prior art, utilize the driving force that is located at the motor in the image processing system main body, described packaged unit is removed automatically from described supply opening.This technology that described supply opening is opened has automatically also become known technology (Japanese publication patent disclosure communique spy opens flat 9-114352).
In addition, open Japanese publication patent disclosure communique spy disclose a kind of method that distance piece is set among the flat 2-39169 between photosensitive drum surface and charging unit.
Summary of the invention
The present invention has developed above-mentioned prior art.
The object of the present invention is to provide a kind of color electronography image processing system, it is equipped with a plurality of cartridges (Delevoping cartridge and handle box), and wherein, the packaged unit that each cartridge is had is removed automatically from the developer feeding mouth.
Another object of the present invention is to provide a kind of color electronography image processing system, it is equipped with a plurality of cartridges (Delevoping cartridge and handle box), wherein, need not the operator in the operation of using each cartridge to advance to be about to packaged unit to remove.
Another object of the present invention is to provide a kind of color electronography image processing system, it is equipped with a plurality of cartridges (Delevoping cartridge and handle box), wherein, the packaged unit that each cartridge is had is removed automatically from the developer feeding mouth, and, nonetheless, also can maximize by restraining device.
Another object of the present invention is to provide a kind of color electronography image processing system, it has the installation portion that is used to install a plurality of cartridges (Delevoping cartridge and handle box) on a plurality of positions, only just the packaged unit that each cartridge was had can be removed automatically from the developer feeding mouth with the driving force of a motor.
Another object of the present invention is to provide a kind of color electronography image processing system, it is equipped with a plurality of cartridges (Delevoping cartridge and handle box), wherein, when opening packaged unit, the driving force transfer device optionally is delivered to driving force the opening device that each cartridge has.
Another object of the present invention is to provide a kind of electrophotographic image to form device, it has: (a) a plurality of installation portions, and cartridge can be mounted thereto, also can pull down from it; (b) motor; (c) driving force transfer device, wherein, described cartridge has: developer roll, it is used for the electrostatic latent image that is formed on the electronic photographic sensitive drum is developed; The developer collecting receiving part, it is used to accommodate the developer of using when described developer roll develops to described electrostatic latent image; The developer feeding mouth, it is used for giving described developer roll with the developer feeding that is housed in described developer collecting receiving part; Packaged unit, it seals described developer feeding mouth, and can be unlocked; Opening device, it can be removed described packaged unit from described developer feeding mouth, thereby described developer feeding mouth is opened.
Another object of the present invention is to provide a kind of handle box and a kind of electrophotographic image to form device, it can make bulging the becoming automatically with treating apparatus of the electronic photographic sensitive that is in the released state be in the contact condition.
Another object of the present invention is to provide a kind of handle box and a kind of electrophotographic image to form device, wherein, need not the operation that the operator removes separation, the electronic photographic sensitive drum that was in before bringing into use handle box in the released state is become with treating apparatus be in the contact condition.
Another object of the present invention is to provide a kind of handle box and a kind of electrophotographic image to form device, wherein, link in the breakdown action of the packaged unit that is sealing the developer feeding mouth and can be unlocked, the electronic photographic sensitive drum that is in the released state is become with treating apparatus be in the contact condition.
Another object of the present invention is to provide a kind of handle box and a kind of electrophotographic image to form device, wherein, utilize simply to constitute, the electronic photographic sensitive drum that is in the released state is become with treating apparatus be in the contact condition.
Another object of the present invention is to provide a kind of handle box, it can be contained in electrophotographic image and form on the device, and can pull down from it, and it has: the electronic photographic sensitive drum; Treating apparatus, it acts on described electronic photographic sensitive drum; The developer collecting receiving part, it is used to accommodate to being formed on the develop developer of usefulness of electrostatic latent image on the described electronic photographic sensitive drum; The developer feeding mouth, it is used for giving described electronic photographic sensitive drum with the developer feeding that is housed in described developer collecting receiving part, and this developer feeding mouth is located at described developer collecting receiving part; Packaged unit, it is sealing described developer feeding mouth and can be unlocked; Volume removes portion, and it can be rolled up and remove described packaged unit, is used for described developer feeding mouth is opened; Separating component, it is used to make described electronic photographic sensitive drum to separate with described treating apparatus.Described separating component constitutes: remove action along with described volume removes the volume that parts carried out, described separating component moves to contact position from the separation point position, wherein, described separation point position is the position that described electronic photographic sensitive drum is separated with described treating apparatus, and described contact position is to allow described electronic photographic sensitive drum and the contacted position of described treating apparatus.
Description of drawings
Fig. 1 is the longitudinal section that the summary of image processing system in expression first embodiment constitutes.
Fig. 2 is the cut-open view of the handle box in expression first embodiment.
Fig. 3 is the exploded perspective view of the handle box in expression first embodiment.
The partial sectional view of Fig. 4 state that to be expression install the handle box in first embodiment to image processing system.
Fig. 5 is the partial sectional view that expression is positioned the handle box in first embodiment location division of image processing system.
Fig. 6 is the cut-open view that in expression first embodiment handle box is positioned the location division of image processing system.
Fig. 7 is the exploded perspective key diagram of the developer reservoir opening in expression first embodiment.
Fig. 8 is the key diagram that the expression volume removes the state of the developer strip of paper used for sealing in first embodiment.
Fig. 9 is the key diagram that the developer strip of paper used for sealing volume of expression in first embodiment removes the axle transmission of drive force.
Figure 10 is the block diagram of control system in first embodiment.
Figure 11 is the process flow diagram that the expression volume removes the order of the developer strip of paper used for sealing in first embodiment.
Figure 12 is the key diagram that the developer strip of paper used for sealing volume of expression in second embodiment removes the axle transmission of drive force.
Figure 13 is the key diagram that the developer strip of paper used for sealing volume of expression in the 3rd embodiment removes the axle transmission of drive force.
Figure 14 is the key diagram that the developer strip of paper used for sealing volume of expression in the 4th embodiment removes the axle transmission of drive force.
Figure 15 is the key diagram of mechanical clutch in the 4th embodiment.
Figure 16 is the key diagram of mechanical clutch in the 4th embodiment.
Figure 17 is the key diagram of mechanical clutch in the 4th embodiment.
Figure 18 is the key diagram of mechanical clutch in the 4th embodiment.
Figure 19 be expression in the 6th embodiment handle box and the stereographic map of separating component, wherein, separating/contacting between the photosensitive drums of separating component and handle box and the developer roll is relevant.
Figure 20 is the stereographic map that the volume in expression the 6th embodiment removes the formation of parts and separating component.
Figure 21 is the stereographic map that the volume in expression the 6th embodiment removes parts.
Figure 22 is the stereographic map that the volume in expression the 7th embodiment removes parts.
Figure 23 is the stereographic map of the side cover of the handle box in expression the 8th embodiment.
Figure 24 is the stereographic map that the volume in expression the 9th embodiment removes the parts periphery.
Embodiment
Below, with reference to the color electronography image processing system in description of drawings an embodiment of the invention.In addition, the color electronography image processing system of example respectively is equipped with a handle box shown in the present embodiment on the installation portion at four positions, and this device forms coloured image on recording medium.
[integral body of color electronography image processing system constitutes]
At first, the integral body formation with regard to image processing system describes.Fig. 1 shows the cut-open view of the color laser printer in the present embodiment.
As shown in Figure 1, the electrophotographic image in the present embodiment forms that device 100 has 4 image forming parts and to the conveying device of this image forming part conveying recording medium.Described 4 image forming parts have the electronic photographic sensitive drum (below be referred to as " photosensitive drums ") of 4 cydariforms, and these 4 photosensitive drums are respectively yellow (Y), magenta (M), mazarine (C), black (B), and they are rotated with certain speed.
Image processing system 100 has 4 photosensitive drums 1 (1a, 1b, 1c, 1d) that are set up in parallel in vertical direction.This photosensitive drums 1 is pressed the counter clockwise direction rotation among Fig. 1 by not shown drive unit driving.Around photosensitive drums 1, along its sense of rotation arranged in order charging device 2 (2a, 2b, 2c, 2d), scanning element 3 (3a, 3b, 3c, 3d) as one for the treatment of apparatus arranged, have developing cell 4 (4a, 4b, 4c, 4d) as the developing apparatus of one for the treatment of apparatus, static printing device 5 (5a, 5b, 5c, 5d), as the cleaning device 6 (6a, 6b, 6c, 6d) of one for the treatment of apparatus.Here, charging device 2 makes the surperficial uniform charged of photosensitive drums 1; Scanning element 3 to photosensitive drums 1 illuminating laser beam, forms electrostatic latent image based on image information thus on photosensitive drums 1.In addition, developing apparatus makes developer attached on the electrostatic latent image, thereby with described image development.In addition, transfer device 5 makes the developer that is formed on the photosensitive drums 1 look like to be transferred on the recording medium S (recording chart, OHP thin slice etc.) that is come by transfer belt 11 conveyings.In addition, cleaning device 6 is removed remaining in the residual developer of photosensitive drums 1 lip-deep transfer printing after the transfer printing.
As shown in Figure 1, image processing system 100 is equipped with transfer belt 11.Described transfer belt 11 contacts in opposite directions and with it and moves with all photosensitive drums 1.This transfer belt 11 is bearing on roller 13,14a, the 14b, 15 by 4 axles in vertical direction.And transfer belt 11 is utilized static to be adsorbed among Fig. 1 recording medium S on the outer peripheral face of left side and is made recording medium S contact above-mentioned photosensitive drums 1 and move.Thus, recording medium S is transferred and is with 11 to be transported to transfer position.Then, on transfer position, the developer on the photosensitive drums 1 looks like to be transferred on the recording medium S.
Connect with described transfer belt 11 inboards and with 4 photosensitive drums 1 positions in opposite directions on be set side by side with transfer roll 12 (12a, 12b, 12c, 12d).These transfer rolls 12 are given recording medium S electric charge with positive polarity via transfer belt 11.Utilize the electric field of this charge generation, the developer of the negative polarity on the photosensitive drums 1 is looked like to be transferred on the recording medium S with during photosensitive drums 1 contacts.
Delivery section 16 is the parts to image forming part conveying recording medium S.Many recording medium S are housed in the carton 17.When forming image, conveying roller 18 (semilune roller) and alignment roller form action to 19 according to image and are rotated.Then, described delivery section 16 is carried after the recording medium S in the carton 17 is separated one by one.Afterwards, the front end of recording medium S is run into alignment roller and was once stopped 19.To be transferred form the starting position and reach synchronously with 11 rotation and image after, recording medium S is transported on the transfer belt 11 to 19 by alignment roller.
Photographic fixing portion 20 makes the developer that is transferred to the multiple color on the recording medium S part as photographic fixing.The recording medium S that has been transferred the developer picture on the photosensitive drums 1 is heated, pressurizes during by photographic fixing portion 20, thus, the developer picture of multiple color by photographic fixing on the surface of recording medium S.Then, the developer picture photographic fixing portion 20 by photographic fixing recording medium S be discharged to outside the apparatus main body 100a from row paper portion 24 23 by exit roller.
[integral body of handle box constitutes]
Be elaborated with regard to handle box 7 below with reference to Fig. 2 and Fig. 3.What Fig. 2 was represented is the transversal section that contains the cartridge 7 of developer.Fig. 3 is the exploded perspective view of cartridge 7.In addition, the formation of each cartridge of yellow, magenta, mazarine, black (7a, 7b, 7c, 7d) is identical.
Photosensitive drums above-mentioned 1 and charging device 2, the developing cell 4 with developing apparatus and cleaning device 6 are become one by boxlikeization, thereby constitute cartridge 7 (7a, 7b, 7c, 7d).
Cartridge 7 has photoconductive drum unit 50 and developing cell 4.Here, photoconductive drum unit 50 has photosensitive drums 1, charging device 2 and cleaning device 6.In addition, developing cell 4 has the developing apparatus that the electrostatic latent image that is formed on the photosensitive drums 1 is developed.
Photoconductive drum unit 50 has cleaning frame 51.Here, photosensitive drums 1 be installed on the frame 51 by bearing 31 and relatively frame 51 can rotate freely.Around photosensitive drums 1, dispose charging device 2 and cleaning blade 60.Here, charging device 2 makes the surperficial uniform charged of photosensitive drums 1.In addition, scraping blade 60 developer that will remain on the photosensitive drums 1 is removed.And the residual developer of being removed from the surface of photosensitive drums 1 by scraping blade 60 then is developed agent conveying mechanism 52 and is sent to the developer chamber 51a that is located at frame 51 rears.
Photosensitive drums 1 is the parts that are made of coating organic photoconductor layer (OPC photoreceptor) on the outer peripheral face of aluminum barrel.The both ends of photosensitive drums 1 are by the state of bearing 31 supportings for rotating freely as support unit, and the driving force of CD-ROM drive motor (not shown) is passed on the end of one side, and thus, photosensitive drums 1 is driven along rotation counterclockwise among Fig. 2.
As shown in Figure 2, as charging device 2, use be the device of contact electrification form.Charging device 2 in the present embodiment is to constitute the charging roller 2r that the roller shape has electric conductivity.This charging roller 2r is connected on the surface of photosensitive drums 1, and applies the charging bias voltage from apparatus main body 100a to charging roller 2r.Thus, charging roller 2r makes the surperficial uniform charged of photosensitive drums 1.
Developing cell 4 has developer roll 4 and as the developer reservoir 41 and the development frame 45 of developer collecting receiving part, wherein, contains developer in the developer collecting receiving part.Here, developer roll 40 contacts with photosensitive drums 1 and rotates along arrow Y direction.Developer roll 40 be bearing on the development frame 45 by parts of bearings 47,48 and its relatively this frame 45 rotate freely.In addition, around developer roll 40, dispose developer feeding roller 43 and development scraping blade 44 respectively.Developer feeding roller 43 contacts with developer roll 40 and rotates along arrow Z direction.In addition, in developer reservoir 41, be provided with developer conveying mechanism 42.42 pairs of developer conveying mechanisms are housed in developers in the developer reservoir 41 and stir and it is flowed to developer roll 43.In addition, yellow cartridge 7a contains yellow developer t in described developer reservoir 41; Magenta cartridge 7b contains magenta developer t in described developer reservoir 41; Mazarine cartridge 7c contains mazarine developer t in described developer reservoir 41; Black cartridge 7d contains black reagent t in described developer reservoir 41.
Above-mentioned developer roll 40 with photosensitive drums 1 state of contact under applied the development bias voltage from apparatus main body 100a, thus, developer roll 40 is with latent electrostatic image developing.In addition, the amount of the developer on the development scraping blade 44 restriction developer rolls 40.
Here, in the contact development form that present embodiment adopted, that is, contact with developer roll 40 and in the form of developing, preferably make photosensitive drums 1 be to make developer roll 40 for having elastomeric roller by rigid body at photoreceptor 1.As this elastic body, use the vulcanie of simple layer or consider it to make the charged performance of developer and on vulcanie, applied the elastic body etc. of resin.
In addition, as mentioned above, cartridge 7 is divided into photoconductive drum unit 50 and developing cell 4.And, as shown in Figures 2 and 3, constituting of developing cell 4: its two ends are equipped with parts of bearings 47,48, on this parts of bearings 47,48, be respectively equipped with bolster 47d, 48d, developing cell 4 is bearing on the photoconductive drum unit 50 by bolster 49, and it can be that swing freely with respect to photoconductive drum unit 50 at the center with bolster 47d, 48d.Here, as mentioned above, in the contact development form that present embodiment adopted, when developing, developer roll 40 is contacted with photosensitive drums 1.Therefore, act on loading force by pressing spring 53 on developing cell 4, this pressing spring 53 can produce the torque around bolster 49 rotations, thereby developer roll 40 and photosensitive drums 1 are in contact with one another.
In addition, as shown in Figure 3 and Figure 4, be provided with side cover 72 in the outside of the parts of bearings 48 of developing cell 4.The side cover 72 of the side of photoconductive drum unit 50 and developing cell 4 has constituted the side of cartridge 7.
[formation of handle box installation portion]
Apparatus main body 100a is provided with a plurality of installation portions, described a plurality of cartridges 7 are installed on these a plurality of installation portions, and this cartridge 7 can be pulled down.Below cartridge 7 is described to the structure that apparatus main body 100a installs.Here, length direction refers to the axial of photosensitive drums 1, and the section direction refers to the direction vertical with the sense of rotation of photosensitive drums 1.
As shown in Figure 4, when apparatus main body 100a installs cartridge 7, along the cartridge guide rail 25 that is located on the apparatus main body 100a cartridge 7 is inserted body interior according to the direction of arrow.Then, the bearing 31 that is supporting photosensitive drums 1 is inserted guide-track groove 34.Afterwards, as shown in Figure 5, bearing 31 is pushed into the bearing surface 37,38 of guide-track groove 34.Cartridge 7 is positioned with respect to apparatus main body 100a thus.On the other hand, in the longitudinal direction, cartridge 7 guides roughly with its side guided member 25.After this, by thrust unit (not shown) location division, side of photoconductive drum unit 50 is pushed into the assigned position of apparatus main body 100a in the side of apparatus main body 100a.Finish cartridge 7 location in the longitudinal direction thus.
Cartridge 7 in apparatus main body 100a on the section direction maintenance of structure constitute as shown in Figure 6.Tighten intrinsic axle 39 at left and right side plate 32, torsion spring 30 is arranged in axle 39 upper supports.In addition, the end 30a of torsion spring 30 embeds among the hole 32a on the left and right side plate 32 and is fixed.Under the state that does not have cartridge 7, torsion spring 30 is in the restriction that is subjected to the parts 32b that bending erects from the left and right side plate 32 on the sense of rotation.When inserting cartridge 7, torsion spring 30 overcomes this resistance and rotates towards counter clockwise direction.And torsion spring 30 is crossed the position that is positioned at behind the bearing 31 as shown in Figure 6.Torsion spring 30 is positioned at cartridge 7 on the apparatus main body 100a on described section direction along the side of trying hard to recommend cartridge 7 of the direction of arrow with about 1kgf.
[developer strip of paper used for sealing opening device]
The developer feeding mouth of cartridge 7 is by developer strip of paper used for sealing 46 sealing as packaged unit, and developer in the developer reservoir 41 is unlikely to be leaked out when logistics is medium so that be housed in.This strip of paper used for sealing 46 is removed when bringing into use cartridge 7.In the present embodiment, cartridge 7 constitutes, and it can be rolled up automatically by the following opening device that will illustrate and remove.
Fig. 7 has represented developer reservoir 41 and development frame 45.As shown in Figure 7, be provided with peristome 41a at the place, junction surface of developer reservoir 41 and development frame 45 as the developer feeding mouth.Described peristome 41a is provided with for developer is sent to development frame 45 from developer reservoir 41.Around this peristome 41a, be provided with deposited 41b of the strip of paper used for sealing 46 of the packaged unit that will mention as the back.
On the peristome 41a of developer reservoir 41, strip of paper used for sealing 46 is installed among Fig. 8.Here, strip of paper used for sealing 46 forms laminar, is attached to that deposited 41b goes up and the peristome 41a of the developer reservoir among Fig. 7 41 is blocked by method such as deposited or bonding.Thus, peristome 41a is closed.
In addition, turn back in the end 46a place of this strip of paper used for sealing 46 on peristome 41a length direction, and the volume that an end 9a of its opposite side is fixed on as opening device removes on the parts 54.The volume that this volume is used to except that parts 54 have roll up except that toner strip of paper used for sealing 46 removes 54a of portion and the gear part 54b that is used for accepting from apparatus main body 100a rotary driving force.Here, the front end of strip of paper used for sealing 46 has not shown hole, this hole is hung over volume remove on the pawl of the 54a of portion.Carry out strip of paper used for sealing 46 and volume thus and remove fixing between the parts 54.Spur the end of this strip of paper used for sealing 46 along arrow X1 direction, its peristome 41a from developer reservoir 41 can be opened, peel off in other words.The unlatching of strip of paper used for sealing 46 or peel off and remove parts 54 by volume and rotate along the X2 direction and carry out promptly, is passed on the gear part 54b from the drive source drives power that is located on the apparatus main body 100a, and thus, volume removes parts 54 and is rotated.
In addition, as described strip of paper used for sealing 46, except such as mentioned above so-called easily stripping type that uses that a thin slice is turned back, be used in combination the epiphragma and the mode of tearing band that is used to tear epiphragma of the peristome 41a of closing developer container 41 in addition.Present embodiment is applicable to above-mentioned any mode.If use the band mode of tearing, then remove parts 54 volumes except that tearing band by volume.
At this moment, as shown in Figure 7, toner strip of paper used for sealing 46 is wound on the volume that removes parts 54 and removes on the 54a of portion.Therefore, volume changes because of the strip of paper used for sealing of having reeled except that the diameter of axle of parts 54.
[informing device and inform signal conditioning package]
Cartridge 7 is provided with informing device, the information notifying unit main body that this informing device is sealing peristome 41a or be unlocked by strip of paper used for sealing 46.In the present embodiment, storage unit 67 is carried on cartridge 7 as informing device.On the other hand, on apparatus main body 100a, be equipped with storage control loop 65 as informing signal conditioning package.
Non-volatile memory device is equipped with in inside in storage unit 67.Carry out data communication between storage unit 67 and the apparatus main body 100a.Can write data and from storage unit 67 sense datas to storage unit 67 thus.
Data communication is closed and is carried out in the noncontact mode by being located at the antenna in the storage unit 67 and being located at magnetic knot between the read-write equipment on the apparatus main body 100a.After being contained in cartridge 7 on the apparatus main body 100a, the antenna part of storage unit 67 is close with the read-write equipment that is located on the apparatus main body 100a, and described antenna part and described read-write equipment promptly are in the state that can communicate each other.
In addition, storage unit 67 inside are provided with electric power loop, and the inner direct supply that uses is supplied with by this electric power loop.In electric power loop, carry out rectification DC voltage takes place by the magnetic knot by 2 antennas being closed the electric current that produces.And, in storage unit 67, store the information of closing cartridge 7.
If there is the peristome 41a of developer reservoir 41 being sealed such information in the storage unit 67, then be used for strip of paper used for sealing 46 being removed from the position volume that is sealing peristome 41a from the driving force of installing main body 100a by strip of paper used for sealing 46.Thus, peristome 41a is by opening.In addition, strip of paper used for sealing 46 makes peristome 41a open once removing from detent position, and open this information of peristome 41a promptly is stored in the storage unit 67.
[opening the driving force transfer device of developer strip of paper used for sealing]
The image processing system 100 of present embodiment constitutes, and cartridge 7 is installed thereon.And this image processing system 100 is behind said memory cells 67 acquired informations, and the volume that can optionally driving force be passed on the cartridge 7 that strip of paper used for sealing 46 is not removed as yet removes parts 54, thereby strip of paper used for sealing 46 is removed.
The employed driving force transfer device of above-mentioned transmission constitutes as shown in Figure 9.That is, be located at as drive source drives motor 81 on the side lateral frame of apparatus main body 100a, can pass to gear row 82a, the 82b of a side, also can pass to gear row 82c, the 82d of opposite side from the driving force of this CD-ROM drive motor of one 81.And this driving force can pass to 4 cartridges, 7 pairing 4 clutch couplinges 83 (83a, 83b, 83c, 83d) by said gear row 82a, 82b, 82c, 82d.
Each clutch coupling 83 is for example electromagnetic clutch.And the control of the engine controller 61 that the image processing system 100 that above-mentioned each clutch coupling 83 will be mentioned by the back is had passes to its downstream gear 84 (84a, 84b, 84c, 84d) with driving force, perhaps transmission of drive force and dallying not.Also be connected with worm gear and worm screw on each gear 84, perhaps conical gear etc.The volume that can adapt to each cartridge 7 like this removes the turning axle direction of parts 54, and the volume that driving force is passed to separately removes parts 54.
Then, optionally make 83 actions of above-mentioned 4 clutch couplinges, whereby optionally to each clutch coupling 83 corresponding 4 cartridge 7 on each volume remove parts 54 transmission of drive force.
[developer strip of paper used for sealing volume removes system]
Here, be used for optionally rolling up the formation of the system that removes described strip of paper used for sealing 46 with the explanation of the system chart among Figure 10.
Among Figure 10 61 is the engine controllers that carry out the total system control of image processing system.There is not shown central arithmetic processing apparatus (CPU) inside of engine controller 61, and a series of system handles of image processing system are carried out according to the program that is stored in central arithmetic processing apparatus inside in advance.
The drive controlling that above-mentioned controller 61 carries out high-voltage power supply 62 or drive division 66 based on detection signal or input signal from each sensor part 63, and with the regulation information be presented at display part 64.So, controller 61 carries out the control that image forms action.And, in the present embodiment, cartridge 7 being contained in after apparatus main body 100a goes up, storage control loop 65 can communicate with the storage unit 67 of this cartridge 7.Thus, removing strip of paper used for sealing 46 grades in cartridge 7 moves controlled.
Removing the action of above-mentioned strip of paper used for sealing 46 carries out according to the order of process flow diagram shown in Figure 11.Promptly, the cartridge in the present embodiment 7 being contained in back (step S1) on the apparatus main body 100a, detect peristome 41a as pick-up unit and promptly read information (step S2) from described storing driver source 67 by the storer control loop 65 of strip of paper used for sealing 46 such information of sealing.
Then, when existing peristome 41a being sealed thereby peristome 41a need be opened such cartridge 7 (step S3) by strip of paper used for sealing 46, select the driving force bang path by controller 61, the volume that will only pass to this cartridge 7 from the driving force of device main body 100a removes parts 54 (step S4).
For example, a cartridge 7a is only arranged among 4 cartridge 7a, 7b in Fig. 1,7c, the 7d, drive CD-ROM drive motor 81 shown in Figure 9 by strip of paper used for sealing 46 sealed up occasions.Meanwhile, make among 4 clutch coupling 83a, 83b, 83c, the 83d and the corresponding clutch coupling 83a action of above-mentioned cartridge 7a (combination).Thus, the volume that is delivered on the cartridge 7a of driving force removes parts 54.Thus, strip of paper used for sealing 46 is removed from peristome 41a volume.At this moment, do not make other clutch coupling 83b, 83c, 83d be failure to actuate (separation).That is, the volume that driving force of CD-ROM drive motor 81 is not passed to other cartridges 7b, 7c, 7d removes parts 54.
Thus, the peristome 41a of selecteed cartridge 7a is by opening (step S5), and open such information is stored into (step S6) in the said memory cells 67.Afterwards, image processing system 100 promptly is in the ready state (step S7) that can form image.
In addition, in the present embodiment, in the occasion that the strip of paper used for sealing 46 of a plurality of cartridges 7 is not removed, the driving force of CD-ROM drive motor 81 is not that the volume that passes to a plurality of cartridges 7 simultaneously removes parts 54, but transmits respectively one by one.
For example, among Fig. 1 among 4 cartridge 7a, 7b, 7c, the 7d strip of paper used for sealing 46 of 2 cartridge 7a, 7b be not removed, in the occasion that detects such information, CD-ROM drive motor 81 begins action.Meanwhile, at first, combine with the corresponding clutch coupling 83a of cartridge 7a, the volume that driving force is passed to cartridge 7a removes parts 54.Thus, the strip of paper used for sealing 46 of cartridge 7a is removed by volume.At this moment driving force does not pass to the volume of cartridge 7b except that parts 54.
After the strip of paper used for sealing 46 of cartridge 7a was removed, clutch coupling 83a separated.Meanwhile, combine with the corresponding clutch coupling 83b of cartridge 7b, the volume that driving force is passed to this cartridge 7b removes parts 54, thereby strip of paper used for sealing 46 volumes are removed.
Therefore, in 4 cartridge 7a, 7b, 7c, 7d all strip of paper used for sealing 46 all sealed occasion, pass to each strip of paper used for sealing volume respectively from the driving force of CD-ROM drive motor 81 and remove parts 54, remove thereby all strip of paper used for sealings 46 are rolled up successively.
As mentioned above, in the present embodiment, can peristome 41a be opened automatically with the drive source that apparatus main body 100a is had.Especially, be inserted in cartridge 7 under the state of apparatus main body 100a, utilize storage unit 67 can optionally driving force only be passed to the cartridge 7 that peristome 41a is being closed.
And, in the occasion that needs are removed the strip of paper used for sealing 46 on a plurality of cartridges 7, also can optionally strip of paper used for sealing 46 be removed one by one by a CD-ROM drive motor 81.Therefore, small-sized CD-ROM drive motor 81 is enough to satisfy the demand, and unlikely cost rising and the device of causing maximizes.
[second embodiment]
Below with reference to Figure 12 device in second embodiment is described.The basic comprising of the device in the present embodiment is identical with above-mentioned first embodiment, therefore omit here it is carried out repeat specification, and only just different with first embodiment formations describes.In addition, give identical mark to having parts with above-mentioned embodiment identical functions etc.
Figure 12 is the key diagram that the volume in second embodiment removes parts 54 transmission of drive force.The driving force of the CD-ROM drive motor 81 that is had from apparatus main body 100a is transmitted to clutch coupling 83a, 83c by gear 82a and gear 82c.Clutch coupling 83a, 83c are for example electromagnetic clutch.And, identical with above-mentioned first embodiment, above-mentioned clutch coupling 83a, 83c are subjected to the control of the controller 61 that image processing system 100 had, driving force transmission (clutch coupling combination) is given wobble gear 85a, the 85c in its downstream, perhaps, transmission of drive force (clutch separation) and dallying not.
After cartridge 7 is inserted apparatus main body 100a, when driving force only being passed to peristome 41a, carry out following control with controller 61 by the sealed up cartridge 7 of 46 on strip of paper used for sealing.
For example, when the volume that driving force is only passed to the cartridge 7a among Fig. 1 removed parts 54, the gear 84a that the driving force of CD-ROM drive motor 81 is only passed among Figure 12 got final product.
Therefore, make CD-ROM drive motor 81 arrow B 1 direction rotation in Figure 12.Control with controller 61, clutch coupling 83a is transmitted driving force downstream, and, do not make clutch coupling 83c transmission of drive force downstream.So clutch coupling 83a is positioned at the wobble gear 85a in its downstream and the gear 84a in this wobble gear 85a downstream and meshes and transmission of drive force to the rotation of arrow B 2 directions.According to the sense of rotation of CD-ROM drive motor 81, this wobble gear 85a can with the state of clutch coupling 83a engagement under be that swing at the center with the rotation center of this clutch coupling 83a.That is, clutch coupling 83a optionally meshes with gear 84a and gear 84b.
Therefore, wobble gear 85a leaves gear 84b when meshing with gear 84a, thereby cuts off the transmission to the driving force of gear 84b.In addition, gear 84c, 84d are not rotated because of the clutch coupling 83c of its upstream cuts off the transmission of driving force.
On the other hand, when wobble gear 85a and gear 84b engagement, make clutch coupling 83c keep above-mentioned released state constant, make CD-ROM drive motor 81 to the direction rotation opposite with arrow B 1.
Optionally the situation to gear 84c, 84d transmission of drive force also is same.That is, wobble gear 85a can with the state of clutch coupling 83c engagement under be that swing at the center with the rotation center of this clutch coupling 83c.That is to say that it is arranged to optionally mesh with clutch coupling 83c gear 84c and gear 84d.Like this, can when clutch coupling 83a is separated, make clutch coupling 83c combination,, select any one among gear 84c, the 84d and driving force is passed to this gear by changing the sense of rotation of CD-ROM drive motor 81.
As mentioned above, by controlling, driving force only can be passed to any one in a plurality of cartridges 7 with the sense of rotation of 61 pairs of CD-ROM drive motor 81 of controller and the driving force transmission of clutch coupling.Can obtain thus and the same effect of above-mentioned first embodiment, and can also be with the decreased number to 2 of clutch coupling, thereby device is easily constituted.
[the 3rd embodiment]
Below with reference to Figure 13 device in the 3rd embodiment is described.The basic comprising of the device in the present embodiment is also identical with above-mentioned first embodiment, therefore omit here it is carried out repeat specification, and only just different with first embodiment formations describes.In addition, give identical mark to having parts with above-mentioned embodiment identical functions etc.
Figure 13 is the key diagram that the volume in the 3rd embodiment removes parts 54 transmission of drive force.The situation that is to use 2 motors of example in the present embodiment.
As shown in figure 13, the driving force of 2 CD- ROM drive motor 81a, 81b that had from apparatus main body 100a passes to gear 82a, 82c respectively.And above-mentioned driving force passes to wobble gear 85a, 85c from gear 82a, 82c.In addition, according to the sense of rotation of CD- ROM drive motor 81a, 81b, wobble gear 85a, 85c can with the state of gear 82a, 82c engagement under be that swing at the center with the rotation center of this gear 82a, 82c.That is, wobble gear 85a, 85c can optionally mesh with gear 84a, 84b or gear 84c, 84d.
After cartridge 7 is inserted apparatus main body 100a, when driving force only being passed to peristome 41a, carry out following control with controller 61 by the sealed up cartridge 7 of 46 on strip of paper used for sealing.
For example, when the volume that driving force is only passed to the cartridge 7a among Fig. 1 removed parts 54, the gear 84a that the driving force of CD-ROM drive motor 81a is only passed among Figure 13 got final product.Therefore, make CD-ROM drive motor 81a arrow C 1 direction rotation in Figure 13.So gear 82a is positioned at the wobble gear 85a in its downstream and the gear 84a engagement in this wobble gear 85a downstream to the rotation of arrow C 2 directions.Like this, driving force is passed to gear 84a from CD-ROM drive motor 81a.At this moment, wobble gear 85a leaves gear 84b, thereby cuts off the driving force transmission to gear 84b.And at this moment, CD-ROM drive motor 81b does not drive.
In addition, in the occasion of any one transmission of drive force in gear 84c, 84d, as long as same, CD-ROM drive motor 81b driven get final product with above-mentioned occasion.
As mentioned above, by the rotation of controller 61 couples of CD- ROM drive motor 81a, 81b, stop and sense of rotation is controlled.Thus, driving force only can be passed in a plurality of cartridges 7 any one.Can obtain thus and the same effect of above-mentioned first embodiment, and in the present embodiment,, not need clutch coupling though the number of motor is 2.Therefore, present embodiment has the more or less freely advantage of control formation.
[the 4th embodiment]
Below with reference to the device in Figure 14~18 explanations the 4th embodiment.The basic comprising of the device in the present embodiment is also identical with above-mentioned first embodiment, therefore omit here it is carried out repeat specification, and only just different with first embodiment formations describes.In addition, give identical mark to having parts with above-mentioned embodiment identical functions etc.
Figure 14 is the key diagram that the volume in the 4th embodiment removes parts 54 transmission of drive force.In the present embodiment, the mechanical clutch 86 that the driving force of the CD-ROM drive motor 81 that is had from apparatus main body 100a will be mentioned rearwards by gear 82 transmits.Mechanical clutch 86 has planet wheel 86a, selects one by this planet wheel 86a from gear 84a, 84b, 84c, the 84d that is used for transmission of drive force, and driving force is passed to this gear.
Here, describe with regard to the clutch coupling in the present embodiment 86 with reference to Figure 15~18.Clutch coupling 86 mainly is made of planet wheel 86a, disk 86b, felt member 86d, stepped gear 86e, trigger 86i.Planet wheel 86a is around the axle rotation that is located on the disk 86b, and revolves round the sun around axle 86n.In addition, disk 86b, planet wheel anti-avulsion part 86c, felt member 86d and stepped gear 86e are the center rotation with axle 86n.Felt member 86d is fixed with respect to planet wheel anti-avulsion part 86c.Described planet wheel anti-avulsion part 86c is fixed to such state: it is rotation synchronously with it when keeping right alignment with disk 86b.
The side's of stepped gear 86e gear and gear 82 often mesh, and the opposing party's gear and planet wheel 86a often mesh.Stepped gear 86e is by the arrow P direction application of force of pressure spring 86g in Figure 15.Thus, stepped gear 86e is pushed to the felt member 86d that rotates synchronously with disk 86b all the time.Here, the driving force from CD-ROM drive motor 81 passes to stepped gear 86e by gear 82.So the friction force that produces between stepped gear 86e and the felt member 86d makes that disk 86b, planet wheel anti-avulsion part 86c and planet wheel 86a and stepped gear 86e are the center rotation with axle 86n synchronously.On the other hand, applying mandatoryly when making its acting force that stops to disk 86b from the outside, stepped gear 86e limit is the rotation of slip limit on felt 86d.At this moment, planet wheel 86a does not revolve round the sun around axle 86n, and only carries out rotation around the axle that is located on the disk 86b.
In addition, being provided with at trigger end 86o can be along the 86k of roller in axial sliding of axle 86n.And, roller 86k all the time by spring 86j towards arrow P 1 direction, i.e. the disk 86b direction application of force.Trigger 86i is loaded by spring 86m.Thus, trigger 86i is being loaded along the mode of arrow Q direction rotation around the trigger axle 86l among Figure 15.As a result, trigger face 86p is pushed to the outer peripheral face of disk 86b all the time.
In Figure 16, make CD-ROM drive motor 81 along arrow R1 direction rotation among the figure, then stepped gear 86e rotates along arrow R2 direction.With the rotation synchronised of this stepped gear 86e, disk 86b also rotates along the R2 direction.Here, each projection 86ba, 86bb on being located at disk 86b outer peripheral face respectively, when any one among 86bc, the 86bd tangles trigger end 86q, disk 86b does not promptly rotate, and planet wheel 86a carries out rotation.Configuration gear 84a, 84b, 84c, 84d, its configuration mode is to make when planet wheel 86a carries out rotation, any one in them and planet wheel 86a mesh together and are rotated.Driving force can be transmitted to the downstream of bang path thus.The selection of the projection 86ba of disk 86b, 86bb, 86bc, 86bd is undertaken by the rotation angle (being the rotation angle of CD-ROM drive motor 81) of the original position that control stepped gear 86e will mention from behind.
Make CD-ROM drive motor 81 when rotating in the opposite direction with arrow R1 side, disk 86b is to the direction rotation opposite with arrow R2.If this rotation continues, then the projection 86be of disk tangles trigger end 86r.The original position that this position is decided to be disk 86b.At this moment, even CD-ROM drive motor 81 is continued to rotating in the opposite direction with arrow R2 side, the position of disk 86b does not change yet.At this moment, the clutch coupling of seeing from the dorsal part direction of Figure 16 86 is shown in Figure 17.
Begin following the carrying out of selection from this state (original position) to the bang path of driving force.Make CD-ROM drive motor 81 to the rotation of arrow R1 direction, then disk 86b arrow R2 direction (arrow S direction among Figure 17) rotation in Figure 16.When the rotation of arrow S direction continued, it was that the center swings to position shown in Figure 180 along arrow Q direction to its loading force that applies with axle 86l that trigger 86i overcomes spring 86m.
Why like this, to be because be located at the roller 86k (with reference to Figure 15) of trigger end 86o along the mobile cause of the groove that is located at the disk 86b back side as shown in figure 18 (86s, 86t, 86u, 86v, 86w, 86x).The degree of depth of groove is respectively: groove 86s and 86v are the darkest, and groove 86u and 86x are the most shallow.And groove 86t and 86w are sloping shape, and the difference of height of groove is connected sleekly.
In the time of in situ (during Figure 17), roller 86k is positioned at groove 86s.Along with disk 86b to arrow S direction rotation, roller 86k is along the cam surface of groove, Yi Bian mark T shape track, Yi Bian from groove 86s arrival slot 86t successively, groove 86u, groove 86v.
From the state of Figure 18, make disk 86b to the direction opposite with arrow S rotate among projection 86ba, 86bb, 86bc, the 86bd any one tangle trigger end 86q till (promptly rotate to desired that is meshed among planet wheel 86a and gear 84a, 84b, 84c, the 84d till).Like this, planet wheel 86a selects any one and the driving force of CD-ROM drive motor 81 is passed to this gear from gear 84a, 84b, 84c, 84d.Thus, can make the volume of from 4 cartridges 7, selecting remove parts 54 rotations, thereby strip of paper used for sealing 46 volumes are removed.
As mentioned above, by the rotation of 61 pairs of CD-ROM drive motor 81 of controller, stop, sense of rotation and the anglec of rotation control.Like this, driving force only can be passed in a plurality of cartridges 7 any one.And, driving force optionally can be passed to and insert peristome 41a that the cartridge 7 among the apparatus main body 100a had by strip of paper used for sealing 46 sealed up those cartridges 7.
[the 5th embodiment]
In the above-described first embodiment, the occasion that the strip of paper used for sealing 46 in a plurality of cartridges 7 is not removed as yet passes to driving force successively each cartridge 7 volume separately respectively and removes parts 54.But, also the driving force of CD-ROM drive motor 81 can be passed to simultaneously each volume and remove parts 54.In the control that this occasion is carried out be: make among 4 clutch coupling 83a, 83b among Figure 12,83c, the 83d with to be removed parts 54 corresponding clutch couplinges by the volume of transmission of drive force and combine simultaneously.When carrying out such control, the situation during with above-mentioned first embodiment transmission of drive force is like that successively compared, though CD-ROM drive motor 81 can maximize, can shorten the volume that carries out strip of paper used for sealing 46 and remove the processing time.
In addition, in the above-described embodiment, as the informing device that carries on cartridge 7, example carry the situation of storage unit 67, but, also can constitute with the projection that is located on the cartridge outside surface as such informing device.For example, when storage control loop 65 detects when having described projection, it is about to this situation and is identified as peristome 41a by strip of paper used for sealing 46 sealed up information.On the other hand, owing to transmitted the driving force from apparatus main body 100a, strip of paper used for sealing 46 is removed peristome 41a thereby by after open, above-mentioned projection is fractureed, above-mentioned storage control loop 65 detects less than above-mentioned projection, and it is about to this situation and is identified as peristome 41a by open information.
In addition, in the above-described embodiment, with what remove is that the developer strip of paper used for sealing that has in the handle box of photosensitive drums and developing apparatus is that example is illustrated, but but as cartridge with respect to the demolition, installation of image processing system main body, even there is not the cartridge of photosensitive drums, for example be with developing apparatus and developer reservoir is integrated and with the Delevoping cartridge that the peristome of this developer reservoir seals, can be suitable for too.
In addition, image processing system also can be such device,, but have only developer reservoir with respect to the apparatus main body demolition, installation, and described developer reservoir does not comprise developing apparatus that is.That is to say that a plurality of developer reservoirs are housed in the image processing system, and the peristome of developer reservoir is developed the agent strip of paper used for sealing and is sealing.In such device, utilize drive transmitting illustrated in the respective embodiments described above to remove above-mentioned developer strip of paper used for sealing, can obtain the effect same with above-mentioned embodiment.
In addition, in the above-described embodiment, as packaged unit, example the developer strip of paper used for sealing, but the packaged unit of closed peristome 41a is not limited to laminar parts.That is, packaged unit also can be tabular, and it opens peristome 41a by sliding on the length direction of cartridge or Width.
According to first~the 5th embodiment, when opening packaged unit, the driving force transfer device optionally passes to driving force the opening device that each cartridge 7 is had.Therefore, the number that is used for producing the motor of the driving force of being transmitted by the driving force transfer device there is no need identical with the number of the cartridge 7 that is contained in apparatus main body 100a.That is to say, can make the number of described motor be less than the number that is contained in the cartridge 7 among the described apparatus main body 100a.
[the 6th embodiment]
The following describes the device in the 6th embodiment.The basic comprising of the device in the present embodiment is identical with above-mentioned first embodiment, therefore omits here it is carried out repeat specification.
[isolating construction of photosensitive drums and developer roll]
Before using beginning, the photosensitive drums 1 and the developer roll 40 of the cartridge 7 in the present embodiment are separated from one another.And, as shown in Figure 3, between the outside of the parts of bearings 48 of developing cell 4 and side cover 72, be provided with separating component 90 as the part of developing cell 4.Described separating component 90 is to be used to make photosensitive drums 1 and developer roll 40 separated components.In addition, referring to image processing system 100 before described use begins uses cartridge 7 to carry out before the image formation action.
Figure 19 is a perspective illustration, and it has represented separating component 90 and developer roll 40, also has photosensitive drums 1 and cleaning frame 51 as the part of photoconductive drum unit 50, and as the bolster 49 of the oscillation centre of developing cell 54.Shown in Figure 19 (a), when cartridge 7 was dispatched from the factory, separating component 90 was against on the projection 51b of cleaning frame 51.
Here, the loading force of above-mentioned pressing spring 53 (elastic force) makes developing cell 4 be middle mind-set arrow P direction swing with respect to photoconductive drum unit 50 with bolster 49.And the direction that the loading force of above-mentioned pressing spring 53 makes developer roll 40 and photosensitive drums 1 desire to contact towards each other moves.Yet before both contacted, separating component 90 promptly contacted with above-mentioned projection 51b, had limited the swing of developing cell 4 thus.Therefore, shown in Figure 19 (a), developer roll 40 keeps released state with photosensitive drums 1.At this moment, separating component 90 is in the position that photosensitive drums 1 is separated with developer roll 40.
Shown in Figure 19 (b), separating component 90 constitutes shape (for example tabular) from the line displacement of going forward side by side to arrow Q direction that can be out of shape.Suppose that this separating component 90 had once carried out displacement (having carried out displacement to contact position) to arrow Q direction, so, the developing cell 4 that swing is restricted among Figure 19 (a) restarts swing with respect to photoconductive drum unit 50 under the effect of the loading force (elastic force) of pressing spring 53.Then, shown in Figure 19 (c), in the position that developer roll 40 and photosensitive drums 1 are in contact with one another, the swing of developer unit 4 stops.At this moment, separating component 90 is in the contact position of allowing that photosensitive drums 1 contacts with developer roll 40.
Therefore, when bringing into use cartridge 7, move like that shown in Figure 19 (c) by making separating component 90, the peristome 41a of cartridge 7 promptly opens, and cartridge 7 just can have been used.
[volume of toner strip of paper used for sealing remove and separating component between relation]
In the cartridge 7 of present embodiment, when using beginning, when volume removed strip of paper used for sealing 46, described separating component 90 moved, thereby photosensitive drums 1 contacts with developer roll 40.
That is, shown in Figure 20 (a), remove on the parts 54 at the volume of present embodiment and to be provided with cam part 54c, this cam part 54c forms cam-like by the fin as cam part with its part and constitutes.Cam part 54c is in and the fin 90a position in opposite directions that is located on the described separating component 90.And when cartridge 7 was dispatched from the factory, the phase place that volume removes parts 54 was adjusted to: with the cam radius on separating component 90 opposites are sizes that separating component 90 is deformed.Then, the user is contained in cartridge 7 on the apparatus main body 100a.Afterwards, the control part (not shown) that is located on the apparatus main body 100a sends electric signal.So, being delivered to volume except that parts 54 from the rotary driving force of apparatus main body 100a, volume removes parts 54 and is rotated.Then, shown in Figure 20 (b), along with this rotation, cam part 54c promotes separating component 90, and it is subjected to displacement.Because this displacement, separating component moves to contact position from the separation point position shown in Figure 19 (a)~Figure 19 (c).Then, separating component 90 is removed the developer roll 40 and the separation limit of photosensitive drums 1.Then, the elastic force of spring 53 makes developer roll 40 contact with photosensitive drums 1.Like this, can constitute, make and bring into use the photosensitive drums 1 that is in before the cartridge 7 in the released state and developer roll 40 to become automatically to be in the contact condition, to need not to remove the operation of separation by the operator as treating apparatus by simple.
As mentioned above, when strip of paper used for sealing 46 being opened, link and remove the rotation of parts 54 in volume, can remove the separation limit of developer roll 40 and photosensitive drums 1 when bringing into use cartridge 7.Therefore, the user's separating component that needn't open the operation of peristome 41a and developer roll 40 will be separated with photosensitive drums 1 such as removes at operation.So, can improve usability.
And, can also make photosensitive drums 1 and developer roll 40 before bringing into use cartridge 7, be in released state always.And, photosensitive drums 1 is contacted automatically with developer roll 40.
In addition, above-mentioned volume removes parts 54 and has cam face in the part.But can not cam face also, but shown in Figure 21 (a), 21 (b), projection 54d is set in the part like that.By this projection 54d separating component 54 is out of shape to arrow Q direction.Can obtain the effect identical thus with above-mentioned effect.
In addition, making in the embodiment of its distortion,, use resilient plastics, rubber etc. as the material of separating component in order to make separating component 90 carry out displacement.
In addition, the basic comprising of present embodiment is substantially the same with first embodiment in the above-mentioned explanation, but also can make this basic comprising and second~and the 5th embodiment is identical.
[the 7th embodiment]
Below with reference to Figure 22 device in the 7th embodiment is described.The basic comprising of the device in the present embodiment is identical with above-mentioned the 6th embodiment, therefore omit here it is carried out repeat specification, and only just different with the 6th embodiment formations describes.In addition, give identical mark to having parts with above-mentioned embodiment identical functions etc.
The volume that Figure 22 (a) expression is rolled up before removing strip of paper used for sealing 46 removes parts 54, strip of paper used for sealing 46, separating component 90 and driven wheel 88, and wherein, driven wheel 88 is located at apparatus main body 100a, and it is used for removing parts 54 transmission of drive force to volume.
The volume that the fin 90a of separating component 90 is located at and rolls up except that strip of paper used for sealing 46 removes the 54a of portion position in opposite directions.Figure 22 (b) represents to make volume to remove parts 54 rotations and strip of paper used for sealing 46 volumes is removed state afterwards.The strip of paper used for sealing 46 owing to reeled, variation has taken place in the diameter of axle that volume removes parts 54.Separating component 90 removed by this volume that part that the diameter of axle of parts 54 taken place to change promotes and in figure arrow Q direction move.Can remove the separation limit of developer roll 40 and photosensitive drums 1 thus.Therefore, the elastic force of spring 53 makes photosensitive drums 1 contact with developer roll 40.
Formation in above-mentioned the 6th embodiment is: volume removes parts 54 and rotates a circle at least and just carry out the releasing that separates of developer roll 40 and photosensitive drums 1.And in the present embodiment, volume removes parts 54 can separate releasing after many weeks of rotation.
This be because, owing to carried out the separate releasing of developer roll 40 with photosensitive drums 1, developing cell 4 is swung rotation with respect to photoconductive drum unit 50, interlock with it, remove parts 54 as the volume of the part of developing cell 4 and also swing rotation, therefore, the engagement of rolling up between the driven wheel 88 that removes parts 54 and should roll up the gear part 54b transmission of drive force of removing parts 54 in apparatus main body 100a side direction may multilated.And the countermeasure that present embodiment adopted is effective.
That is to say, in the present embodiment, make volume remove parts 54 rotations week how, to toner strip of paper used for sealing 46 fully roll up remove and with peristome 41a open after, the separating component 90 that is in the separation point position is moved to contact position.Can carry out the releasing that separates of developer roll 40 and photosensitive drums 1 thus.Therefore, can guarantee to roll up except that the longer time of engagement between parts 54 and the driven wheel 88.So, can effectively strip of paper used for sealing 46 volumes be removed.
In addition,, do not deform, but can obtain same effect yet along the separating component 90 that arrow Q direction moves though separating component 90 is the parts that can deform on arrow Q direction.
[the 8th embodiment]
Below with reference to Figure 23 device in the 8th embodiment is described.The basic comprising of the device in the present embodiment is also identical with above-mentioned the 6th embodiment, therefore omit here it is carried out repeat specification, and only just different with the 6th embodiment formations describes.In addition, give identical mark to having parts with above-mentioned embodiment identical functions etc.
Shown in Figure 23 is the inboard of the side cover (cartridge cover) 72 of cartridge 7.On the side cover 72 of present embodiment, the separating component 90 as shown in above-mentioned embodiment forms as one with this side cover 72.And separating component 90 can be out of shape (being out of shape to contact position from the separation point position) on the Q direction shown in the figure.Here, side cover 72 is the parts that cover the side of cartridge 7.
According to present embodiment, do not need to adopt other parts as separating component, can cut down total component count order of cartridge 7.In addition, follow in this, can cutting down cost, improve the assembling performance.
[the 9th embodiment]
Below with reference to Figure 24 device in the 9th embodiment is described.The basic comprising of the device in the present embodiment is also identical with above-mentioned the 6th embodiment, therefore omit here it is carried out repeat specification, and only just different with the 6th embodiment formations describes.In addition, give identical mark to having parts with above-mentioned embodiment identical functions etc.
In the present embodiment, after volume removed parts 54 and stops the rotation, separating component 90 produced distortion, perhaps was moved and carried out displacement (carrying out displacement from the separation point position to contact position).Thus, can carry out the releasing that separates of developer roll 40 and photosensitive drums 1.
The volume of the strip of paper used for sealing 46 of present embodiment constitutes as Figure 24 (a) except that the displacement with separating component 90.That is, be provided with volume as the part of developing cell 4 in the present embodiment and remove the separating component 90 that parts 54, part are out of shape on the arrow Q direction in the drawings.Be provided with the axle one-tenth parts 55 (55a, 55b) that remove the bearing of parts 90 as volume in addition.Here, parts of bearings 55 has along the slotted hole of arrow T direction.In addition, also be provided with torsion spring 56.Also being provided with on apparatus main body 100a can be at the driven wheel 88 of arrow u direction swing.And, also being provided with input gear 87, this input gear 87 makes this driven wheel 88 swings in driven wheel 88 transmission of drive force.In addition, also be provided with parts of bearings 57 (57a, 57b), 57 pairs of driven wheels 88 of this parts of bearings support, and make its can with the input gear 87 turning axle be that swing at the center.
Shown in Figure 24 (a), when importing gear 87 when arrow X3 direction is rotated, driven wheel 88 is swung to arrow u1 direction.And gear 82 transmission make volume remove the driving force of the gear part 54b of parts 54 to the rotation of arrow X2 direction.Thus, strip of paper used for sealing 46 is removed except that parts 54 volumes by volume.So removing in the process of parts 54 transmission of drive force to volume, and removing in the process of strip of paper used for sealing 46 at volume, volume removes parts 54 and is subjected to engagement force F1 from arrow f1 direction among the figure of driven wheel 88.In addition, tear strip of paper used for sealing 46 roll up except that the time power of the tearing F2 effect that acted in the drawings on the arrow f2 direction.
Therefore, volume is rotated under the state of arrow T1 direction in figure except that the slotted hole inboard of parts 54 at parts of bearings 55 (55a, 55b).Remove under the state of strip of paper used for sealing 46 at Shang Weijuan, shown in Figure 24 (a), volume removes parts 54 and does not contact with loading spring 56.The fin 90a of separating component 90 does not remove parts 54 with volume and contacts, and photosensitive drums 1 is separated from one another with developer roll 40.
Below, Figure 24 (b) is illustrated in strip of paper used for sealing 46 is rolled up under the state after removing fully, and the volume under the state of the input of still accepting driven wheel 88 removes parts 54.
At this moment, because variation (becoming big) except strip of paper used for sealing 46, has taken place so volume removes the diameter of axle of parts 54 in volume.At this moment, because strip of paper used for sealing 46 has been removed by volume, the power of the tearing F2 that tears strip of paper used for sealing 46 is arranged so no longer act on.
Here, because of volume removes parts 54 promote loading spring 56 shown in Figure 24 (b) a end except strip of paper used for sealing 46 makes the volume that the diameter of axle has taken place to change, make spring 56 distortion.Therefore, volume removes the loading force F3 of arrow f3 direction among the figure that parts 54 are subjected to spring 56.
But, volume removes the engagement force F1 that parts 54 still are activated the arrow f1 direction of gear 88, and, F1>F3.Therefore, volume removes the invariant position of parts 54.And at this moment, volume removes parts 54 and does not contact with separating component.Therefore, separating component 90 still is in the separation point position.
Then, from above-mentioned state input gear 87 is stopped the rotation.So volume removes parts 54 and no longer is activated the engagement force F1 of gear 88, and only is subjected to the loading force F3 of the arrow f3 direction of spring 56.As a result, shown in Figure 24 (c), volume removes parts 54 and moves to arrow T2 direction.Be accompanied by this volume and remove moving of parts 54, roll up the fin 90a that removes the strip of paper used for sealing 46 promotion separating components 90 that parts 54 volumes have removed.This thrust makes separating component 90 deform and carries out displacement.Afterwards, identical with above-mentioned embodiment, developer roll 40 carries out along with the distortion of separating component 90 with the releasing that separates of photosensitive drums 1.
Like this, rolling up fully, after the peristome 41a opening with developer reservoir 41, making volume remove parts 54 and stop the rotation except toner strip of paper used for sealing 46.So after this, separating component 90 is subjected to displacement, photosensitive drums 1 was disengaged with separating of developer roll 40.Therefore, when volume was rotated except that parts 54, developing cell 4 was not swung with respect to photoconductive drum unit 50.Thus, can not cause and to carry out the unlatching of strip of paper used for sealing 46 conscientiously by driving force transmission fault phenomenons such as the climbing tooth phenomenon takes place between gear part 54b that volume removes parts 54 and the driven wheel 88.And, also can carry out the releasing that separates of developer roll 40 and photosensitive drums 1 conscientiously.
[the tenth embodiment]
In the above-described embodiment, as the treating apparatus that photosensitive drums is separated by separating component 90 with it, be that example is illustrated with developer roll 40, but such treating apparatus is not limited to developer roll.For example, the treating apparatus that contacts with photosensitive drums as charging roller of charging device etc. also is applicable to the respective embodiments described above.Also can obtain same effect in this occasion.
In addition, handle box has photosensitive drums and at least one treating apparatus.Treating apparatus can be for example charging device, developing apparatus, cleaning device.
In addition, electrophotographic image forms device employing electronics and forms image according to the shape image forming mode on recording medium.Example as electrophotographic image formation device comprises for example electrophotographic copier, electrophotographic printer (for example laser printer, LED printer etc.), facsimile unit and word processor etc.
According to the 6th~the tenth embodiment, the electronic photographic sensitive drum that is in the released state is become automatically with treating apparatus be in the contact condition.
In addition, according to the 6th~the tenth embodiment, the electronic photographic sensitive drum that was in before bringing into use handle box in the released state is become with treating apparatus be in the contact condition, and need not the operation that the operator removes separation.
In addition,, link, the electronic photographic sensitive drum that is in the released state is become with treating apparatus be in the contact condition in the breakdown action of the packaged unit that is sealing the developer feeding mouth and can be unlocked according to the 6th~the tenth embodiment.
In addition,, can constitute, the electronic photographic sensitive drum that is in the released state be become with treating apparatus be in the contact condition by simple according to the 6th~the tenth embodiment.
Thus, can before bringing into use handle box, make photosensitive drums and treating apparatus separated from one another always.And, the electronic photographic sensitive drum that is in released state is contacted when bringing into use handle box automatically with treating apparatus.

Claims (6)

1. an electrophotographic image forms device (100), is used for forming on recording medium image, and cartridge (7) can be loaded on the apparatus main body, and can pull down from it, and described device comprises:
(a) a plurality of installation portions (100a), cartridge (7) can be mounted thereto, also can pull down from it, and wherein, described cartridge (7) has:
Developer roll (40), it is used for the electrostatic latent image that is formed on the electronic photographic sensitive drum (1) is developed;
Developer collecting receiving part (41), it is used to accommodate the developer of using when described developer roll develops to described electrostatic latent image;
Developer feeding mouth (41a), it is used for giving described developer roll with the developer feeding that is housed in described developer collecting receiving part;
Packaged unit (46), it seals described developer feeding mouth, and can be unlocked;
Opening device (54), it is used for described packaged unit is removed from described developer feeding mouth, thereby described developer feeding mouth is opened;
(b) motor (81);
(c) driving force transfer device (82~86) is opened for the described developer feeding mouth that cartridge had that will be installed on described each installation portion, and described driving force transfer device will optionally pass to described opening device from the driving force of described motor.
2. electrophotographic image as claimed in claim 1 forms device, and wherein, described cartridge is a handle box, and it comprises electronic photographic sensitive drum (1).
3. electrophotographic image as claimed in claim 1 forms device, also has pick-up unit (65), this pick-up unit is detected by the sealed up information of described packaged unit the described developer feeding mouth that cartridge had that is installed on described each installation portion, wherein, when described pick-up unit detects the information that described developer feeding mouth is being closed, described driving force transfer device passes to the described opening device that described cartridge has with driving force, thereby this opening device is driven.
4. electrophotographic image as claimed in claim 2 forms device, also has pick-up unit (65), this pick-up unit is detected by the sealed up information of described packaged unit the described developer feeding mouth that handle box had that is installed on described each installation portion, wherein, when described pick-up unit detects the information that described developer feeding mouth is being closed, described driving force transfer device passes to the described opening device that described handle box has with driving force, thereby this opening device is driven.
5. form device as any described electrophotographic image in the claim 1~4, it is characterized in that,
Described motor is common to driving force is applied on the described opening device, and described driving force transfer device passes to described each opening device respectively successively with described driving force, thereby described packaged unit is opened successively.
6. form device as any described electrophotographic image in the claim 1~4, it is characterized in that,
Described driving force transfer device passes to described each opening device simultaneously with driving force, thereby described packaged unit is opened simultaneously.
CNB2005100826328A 2004-07-06 2005-07-06 Electrophotographic image forming apparatus and process cartridge Expired - Fee Related CN100445897C (en)

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JP2004198915A JP3984978B2 (en) 2004-07-06 2004-07-06 Process cartridge and electrophotographic image forming apparatus
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CN101201581B (en) 2010-06-09

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