WO2014010130A1 - Cartouche à corps photosensible, cartouche de traitement et dispositif de formation d'image - Google Patents

Cartouche à corps photosensible, cartouche de traitement et dispositif de formation d'image Download PDF

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Publication number
WO2014010130A1
WO2014010130A1 PCT/JP2012/080842 JP2012080842W WO2014010130A1 WO 2014010130 A1 WO2014010130 A1 WO 2014010130A1 JP 2012080842 W JP2012080842 W JP 2012080842W WO 2014010130 A1 WO2014010130 A1 WO 2014010130A1
Authority
WO
WIPO (PCT)
Prior art keywords
cartridge
charger
photoconductor
transfer member
drum
Prior art date
Application number
PCT/JP2012/080842
Other languages
English (en)
Japanese (ja)
Inventor
進 佐久間
Original Assignee
ブラザー工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ブラザー工業株式会社 filed Critical ブラザー工業株式会社
Priority to CN201280074541.8A priority Critical patent/CN104428722B/zh
Publication of WO2014010130A1 publication Critical patent/WO2014010130A1/fr

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0291—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices corona discharge devices, e.g. wires, pointed electrodes, means for cleaning the corona discharge device
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1803—Arrangements or disposition of the complete process cartridge or parts thereof
    • G03G21/1814—Details of parts of process cartridge, e.g. for charging, transfer, cleaning, developing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0258—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices provided with means for the maintenance of the charging apparatus, e.g. cleaning devices, ozone removing devices G03G15/0225, G03G15/0291 takes precedence

Definitions

  • the present invention relates to an image forming apparatus such as a laser printer, and a process cartridge and a photoreceptor cartridge provided in the image forming apparatus.
  • Patent Document 1 a printer that includes a cartridge that holds a charger detachably is known.
  • a process unit including a photosensitive cartridge that holds a photosensitive drum, a transfer roller, and a charger has been proposed.
  • the sheet is discharged from an opening formed in the photosensitive cartridge after a visible image made of a developer is transferred between the photosensitive drum and the transfer roller.
  • adhering material such as paper dust and dust attached to the charging wire of the charger is moved along the charging wire while the user presses the cleaning member provided on the opposite side of the photosensitive drum against the charging wire with a finger. It is removed by operating.
  • the user when cleaning the charging wire, the user operates while pressing the cleaning member with his / her finger, so that the case supporting the cleaning member bends, a load is applied to the charging wire and grid of the charger, and the charger and the photosensitive member
  • the relative arrangement may change.
  • an object of the present invention is to provide a photosensitive member cartridge and a process cartridge that can clean the charging wire while suppressing the relative arrangement of the charger and the photosensitive member from being changed, and an image forming apparatus including them. There is.
  • a photoconductor cartridge of the present invention includes a casing, a rotatable photoconductor configured to carry a developer image on a peripheral surface, A transfer member disposed opposite to the circumferential surface for transferring the developer image from the circumferential surface of the photosensitive member to the recording medium and opposed to the circumferential surface of the photosensitive member at an interval so as to charge the surface of the photosensitive member.
  • the charger is configured to extend along the axial direction of the photosensitive member, and the charging wire is configured to charge the photosensitive member by corona discharge. The charging wire is rubbed against the charging wire.
  • the first opening is adjacent to the charger support portion on the upstream side in the rotation direction of the photosensitive member, and the gripping portion follows a straight line passing through the axial center of the photosensitive member and the charging wire when projected in the axial direction. It protrudes in the direction that intersects the direction.
  • the housing can be reduced in size.
  • the strength of the charger support portion may decrease.
  • the gripping portion is gripped and the cleaning member is moved along the charging wire. be able to.
  • the charging wire can be cleaned without applying a load to the charger support portion.
  • the direction is an intersecting direction that intersects a direction along a straight line passing through the axial center of the photosensitive member and the charging wire. It is possible to suppress a change in the relative arrangement of the charger and the photoconductor in the direction along the straight line.
  • the housing has a first frame disposed on the charger side in a direction along a straight line passing through the charger and the photoconductor with respect to the photoconductor, and a charger with respect to the photoconductor. And a second frame disposed on the opposite side of the charger in a direction along a straight line passing through the photoconductor, and the first opening may be formed in the first frame.
  • the first frame includes a charger support portion and a first transfer member support portion
  • the second frame includes a second transfer member support portion, and the first transfer member support portion and the second transfer portion.
  • a transfer member support part may be formed by combining with a member support part.
  • the transfer member support portion can be formed with a simple configuration in which the first frame including the charger support portion and the second frame are combined.
  • the charger support portion may include a plate-like member formed over the axial direction of the charging wire so as to be able to face the grip portion.
  • the charger support portion since the charger support portion includes the plate-like member formed over the axial direction of the charging wire, the rigidity of the charger support portion can be improved.
  • the grip portion and the photoconductor are prevented from contacting each other. be able to.
  • the free end portion of the plate-like member is disposed at a position protruding from the charger support portion rather than the photosensitive member, in a direction along a straight line passing through the charger and the photosensitive member. Light from the gripping part side can be shielded.
  • the housing further includes a bottom wall formed on the opposite side of the charger with respect to the photoreceptor, and the bottom wall and the transfer member support portion are supplied to the facing portion between them. A second opening for allowing the recording medium to pass therethrough may be formed.
  • a process cartridge according to the present invention includes the above-described photosensitive cartridge and a developing cartridge that contains a developer and is configured to be detachable from the photosensitive cartridge.
  • the photosensitive cartridge is rotated by the developing cartridge.
  • the developing cartridge includes a contact portion that comes into contact with the plate-like member when detached from the cartridge storage portion.
  • the image forming apparatus of the present invention includes the above-described process cartridge, and a fixing device that fixes the developer image on the recording medium is disposed downstream of the process cartridge in the recording medium conveyance direction.
  • the airflow that has flowed to the upstream side is returned to the airflow toward the fixing device together with the developer scattered near the charger.
  • the charger, the developer carrier, and the transfer member are arranged substantially equally around the photoreceptor, the surface of the photoreceptor is charged by the charger, and the developer carrier is provided.
  • a series of operations of forming a developer image on the surface of the photosensitive member and transferring the developer image to the recording medium together with the transfer member can be stably performed with good balance.
  • FIG. 1 is a side sectional view showing a printer according to a first embodiment of an image forming apparatus of the present invention.
  • FIG. 2 is an explanatory view for explaining attachment and detachment of the developing cartridge shown in FIG. 1 with respect to the drum cartridge, wherein (a) is a left sectional view in a state where the developing cartridge is mounted, and (b) FIG. 4 is a left side view of the developing cartridge mounted.
  • FIG. 3 is an explanatory view for explaining attachment and detachment of the developing cartridge to / from the drum cartridge following FIG. 2, wherein (a) is a left side sectional view in a state where the developing cartridge is detached, and (b) FIG. 4 is a left side view of the developing cartridge in a detached state.
  • the printer 1 includes a sheet feeding unit 3 for feeding a sheet S as an example of a recording medium and an image forming unit 4 for forming an image on the fed sheet S in the main body casing 2. It has.
  • Main Body Casing The main body casing 2 is formed with a cartridge opening 5 for attaching / detaching a process cartridge 15 (described later) and a paper opening 6 for introducing the paper S.
  • the cartridge opening 5 is formed through the upper end of the main casing 2 in the vertical direction.
  • the main body casing 2 is provided with a top cover 7 at its upper end and a paper feed cover 8 at its front end.
  • the top cover 7 is provided with a paper discharge tray 41 from which the paper S is discharged.
  • the top cover 7 is provided to be swingable (movable) between a closed position for closing the cartridge opening 5 and an open position for opening the cartridge opening 5 with the rear end as a fulcrum.
  • the paper feed cover 8 is swingably (moved) between a first position where the paper opening 6 is closed and a second position where the paper opening 6 is opened with the lower end of the paper supply cover 8 as a fulcrum.
  • the paper feed unit 3 includes a paper placement unit 9 provided at the bottom of the main casing 2.
  • the paper stacking portion 9 is communicated with the outside of the main casing 2 through the paper opening 6.
  • the sheet S is stacked on the upper surface of the sheet feed cover 8 while the sheet feed cover 8 is disposed at the second position, and the rear part is loaded on the sheet via the sheet opening 6. Stacked in the placement unit 9.
  • the paper feeding unit 3 includes a pickup roller 11 disposed on the upper side of the rear end portion of the paper placing unit 9, a paper feeding roller 12 disposed on the rear side of the pickup roller 11, and a rear lower side of the paper feeding roller 12.
  • the sheet feeding pad 13 is disposed opposite to the sheet feeding side, and the sheet feeding path 14 extends continuously upward from the rear end portion of the sheet feeding pad 13.
  • (3) Image Forming Unit The image forming unit 4 includes a process cartridge 15, a scanner unit 16, and a fixing unit 17 as an example of a fixing device. (3-1) Process Cartridge
  • the process cartridge 15 is configured to be detachable from the main casing 2 and is mounted on the main casing 2 above the rear portion of the paper feed unit 3.
  • the drum cartridge 18 includes a photosensitive drum 20 as an example of a photosensitive member, a transfer roller 21 as an example of a transfer member, and a scorotron charger 22 as an example of a charger.
  • the photosensitive drum 20 is formed in a substantially cylindrical shape that is long in the left-right direction, and is provided rotatably at the rear portion of the drum cartridge 18.
  • the transfer roller 21 is formed in a substantially cylindrical shape extending in the left-right direction, and is rotatably provided at the rear portion of the drum cartridge 18 so as to be pressed against the photosensitive drum 20 from the rear side.
  • the transfer roller 21 is disposed on the rear side of the photosensitive drum 20 so that the axial center thereof is positioned slightly below the axial center of the photosensitive drum 20.
  • the lower end edge of the transfer roller 21 is disposed above the lower end edge of the photosensitive drum 20.
  • an imaginary line segment (not shown) connecting the axis center of the transfer roller 21 and the axis center of the photosensitive drum 20 and an imaginary straight line (not shown) extending horizontally along the front-rear direction are formed.
  • the acute angle formed is about 3 °. Therefore, the pressure (transfer pressure) at which the transfer roller 21 is pressed against the photosensitive drum 20 is not affected by the weight of the transfer roller 21.
  • the scorotron charger 22 is disposed opposite to the front upper side of the photosensitive drum 20 with an interval.
  • the scorotron charger 22 is disposed with a space in the circumferential direction of the photosensitive drum 20 with respect to the transfer roller 21, and is an imaginary link between the axial center of the photosensitive drum 20 and the axial center of the transfer roller 21. And an imaginary line segment (not shown) connecting the axial center of the photosensitive drum 20 and the charging wire 23 (described later) is about 120 °. Has been placed.
  • the scorotron charger 22 includes a charging wire 23 and a grid 24.
  • the charging wire 23 is stretched so as to extend in the left-right direction, and is opposed to the front upper side of the photosensitive drum 20 with an interval.
  • the grid 24 is formed in a substantially U shape in a side view opened toward the front upper side, and is provided so as to surround the charging wire 23 from the lower back side.
  • the developing cartridge 19 is disposed on the lower front side of the photosensitive drum 20 and includes a developing frame 25.
  • a toner storage chamber 26 and a developing chamber 27 are formed side by side.
  • the toner storage chamber 26 and the developing chamber 27 are formed to have substantially the same volume, and communicate with each other through a communication port 28.
  • the toner storage chamber 26 stores toner (developer), and an agitator 29 is provided at a substantially central portion in the front-rear and vertical directions. That is, the agitator 29 is disposed below the photosensitive drum 20.
  • a supply roller groove 30, a developing roller facing surface 31, and a lower film attaching surface 32 are formed on the upper surface of the lower wall.
  • the developing roller facing surface 31 has a substantially arc shape along the peripheral surface of the developing roller 34 (described later), and is formed so as to continuously extend rearward from the rear end portion of the supply roller groove 30.
  • the lower film attaching surface 32 is formed so as to continuously extend rearward from the rear end portion of the developing roller facing surface 31. That is, the lower film attaching surface 32 is disposed above the developing roller facing surface 31.
  • the lower film attachment surface 32 is disposed to face the lower portion of the photosensitive drum 20 with a space in the vertical direction, and overlaps the axial center of the photosensitive drum 20 when projected in the vertical direction. Is arranged.
  • the supply roller 33 is rotatably provided in the front portion of the developing chamber 27 so that the lower portion thereof is disposed in the supply roller groove 30.
  • the supply roller 33 is disposed on the rear side of the toner storage chamber 26 and is disposed at substantially the same height as the toner storage chamber 26 in the vertical direction.
  • the developing roller 34 includes a metal developing roller shaft 52 extending in the left-right direction and a rubber roller 53 that covers the developing roller shaft 52 so that both left and right ends of the developing roller shaft 52 are exposed.
  • the developing roller 34 is rotatably provided in the rear portion of the developing chamber 27 so that the peripheral surface of the lower portion of the rubber roller 53 and the developing roller facing surface 31 face each other with a space therebetween.
  • the rubber roller 53 of the developing roller 34 is provided so that the upper and rear portions thereof are exposed from the developing chamber 27.
  • the rubber roller 53 is in contact with the supply roller 33 from the upper rear side and is in contact with the photosensitive drum 20 from the lower front side. That is, the developing roller 34 is disposed on the rear upper side of the supply roller 33 and on the front lower side of the photosensitive drum 20.
  • the axial center of the supply roller 33, the axial center of the developing roller 34, and the axial center of the photosensitive drum 20 are located on substantially the same straight line along the radial direction of the photosensitive drum 20.
  • the developing roller 34 is disposed at a distance from the scorotron charger 22 in the circumferential direction of the photosensitive drum 20.
  • the developing roller 34 is a virtual line segment (not shown) connecting the shaft center of the photosensitive drum 20 and the charging wire 23, and a virtual line connecting the shaft center of the photosensitive drum 20 and the shaft center of the developing roller 34.
  • the line segment (not shown) forms an angle of about 120 °. That is, the developing roller 34, the scorotron charger 22, and the transfer roller 21 are arranged at substantially equal intervals (about 120 °) in the circumferential direction of the photosensitive drum 20.
  • the upper end portion of the layer thickness regulating blade 35 is fixed to the rear end portion of the upper wall of the developing chamber 27, and the lower end portion thereof is in contact with the developing roller 34 from the front side.
  • the rear portion of the lower film 36 is fixed to the lower film attaching surface 32, and the front end thereof is in contact with the peripheral surface of the developing roller 34 above the developing roller facing surface 31.
  • (3-2) Scanner Unit The scanner unit 16 is disposed on the front side of the process cartridge 15 so as to face the photosensitive drum 20 with a space in the front-rear direction.
  • the scanner unit 16 emits a laser beam L toward the photosensitive drum 20 based on the image data to expose the peripheral surface of the photosensitive drum 20.
  • the laser beam L is emitted backward from the scanner unit 16 to expose the peripheral surface at the front end portion of the photosensitive drum 20. That is, the exposure point at which the photosensitive drum 20 is exposed (the peripheral surface at the front end of the photosensitive drum 20) is opposite to the nip portion 46 where the photosensitive drum 20 and the transfer roller 21 are in contact with the axial center of the photosensitive drum 20. Is set to the side.
  • a guide portion 37 for guiding the attachment / detachment of the process cartridge 15 is provided on the inner side surface of the main body casing 2 between the scanner unit 16 and the photosensitive drum 20.
  • the process cartridge 15 is guided by the guide portion 37, so that the developing cartridge 19 attached to the drum cartridge 18 has a lower emission locus of the laser beam L. Pass from the top to the top.
  • the fixing unit 17 is disposed above the rear portion of the drum cartridge 18. Specifically, the fixing unit 17 includes a heating roller 38 disposed above the scorotron charger 22 and a pressure roller 39 pressed against the heating roller 38 from the rear upper side.
  • the heating roller 38 is disposed in the vicinity of the upper end portion (open end portion) of the grid 24 of the scorotron charger 22.
  • Image Forming Operation The toner in the toner storage chamber 26 of the developing cartridge 19 is supplied to the supply roller 33 through the communication port 28 by the rotation of the agitator 29, and further supplied to the developing roller 34. Between 33 and the developing roller 34, it is triboelectrically charged to the positive polarity.
  • the toner supplied to the developing roller 34 is regulated by the layer thickness regulating blade 35 as the developing roller 34 rotates, and is carried on the surface of the developing roller 34 as a thin layer having a constant thickness.
  • the sheet S is heated and pressed when it passes between the heating roller 38 and the pressure roller 39. At this time, the image is thermally fixed on the paper S.
  • the paper S is conveyed toward the paper discharge roller 40 and is discharged onto the paper discharge tray 41 of the main casing 2 by the paper discharge roller 40.
  • the sheet S is fed from the sheet placing portion 9 and passes through the nip portion 46 as an example of the facing portion between the photosensitive drum 20 and the transfer roller 21, and then the heating roller 38 and the pressure roller Then, the paper is transported through a substantially C-shaped transport path as viewed from the side so that the paper is discharged onto the paper discharge tray 41.
  • the process cartridge 15 includes a drum cartridge 18 that is detachably attached to the main body casing 2 (see FIG. 1), and a developing cartridge 19 that is detachably attached to the drum cartridge 18. ing.
  • the fitting recess 67 is cut out from the upper edge of the left side wall 61 toward the lower side, and has a notch that is substantially rectangular in a side view with the upper side opened.
  • the protruding wall 68 is formed in a substantially rectangular flat plate shape that protrudes upward from the front peripheral edge of the fitting recess 67.
  • the protruding wall 68 is provided with a receiving portion 71.
  • the receiving portion 71 is formed in a substantially rectangular shape in a side view extending in the vertical direction so as to slightly bulge from the rear edge of the outer (left side) half to the rear side at the substantially vertical center of the protruding wall 68. (See also FIG. 2 (b)).
  • the facing wall 69 is provided on the rear side of the protruding wall 68.
  • the facing wall 69 is formed in a substantially flat plate shape that extends upward from the inner peripheral surface of the fitting recess 67 to substantially the same height as the upper end edge of the protruding wall 68 on the inner side (right side) half of the left side wall 61.
  • a drum shaft insertion hole 72 and a cleaner locking portion 73 are formed in the facing wall 69.
  • the cleaner locking hole 74 is formed in a substantially rectangular shape in side view extending in the front-rear direction.
  • an opposing wall 75 and a protruding wall 76 are formed at the rear end of the right side wall 61.
  • the opposing wall 75 is formed in a substantially flat plate shape extending upward from the upper edge of the right side wall 61.
  • the upper end edge of the facing wall 75 is formed in a substantially arc shape along the peripheral surface of the photosensitive drum 20.
  • a drum shaft insertion hole 77 is formed in the opposing wall 75.
  • the drum shaft insertion hole 77 is disposed at the approximate center of the opposing wall 75 in the front-rear direction so as to coincide with the drum shaft insertion hole 72 of the left side wall 61 when projected in the left-right direction, and is formed in a substantially circular shape when viewed from the side. Has been.
  • the inner diameter of the drum shaft insertion hole 77 is formed to be approximately the same diameter as the drum shaft insertion hole 72 of the left side wall 61.
  • the bottom wall 62 is formed in a substantially flat plate shape that is long in the left-right direction so as to be installed between the lower ends of the side walls 61.
  • the base transfer member support wall 63 is disposed at a rear side of the rear end portion of the bottom wall 62 with an interval, and is laid between the rear end portions of the side walls 61.
  • a lip portion 78 is formed at the front end portion thereof, and a protrusion 79, a plurality of (three) fitting projections 80, and a locking recess portion are formed at the rear upper end portion thereof. 81 is formed.
  • the lip 78 is formed in a substantially flat plate shape that extends from the front end of the base transfer member support wall 63 and extends downward in the left-right direction.
  • the protrusion 79 is formed so as to protrude from the inner surface (front surface) of the rear upper end of the base transfer member support wall 63 toward the front side.
  • An opening region between the lip portion 78 of the base transfer member support wall 63 and the front end portion of the bottom wall 62 serves as a paper feed opening 48 as an example of a second opening that feeds the paper S to the nip portion 46. It is partitioned.
  • the front wall 64 is constructed between the front end portions of the side walls 61 and is formed so as to incline obliquely upward toward the front continuously from the front end portion of the bottom wall 62.
  • the front wall 64 is provided with a plurality (two) of pressing members 83 (FIG. 5) on the rear surface thereof at intervals in the left-right direction.
  • the pressing member 83 always presses the developing cartridge 19 toward the photosensitive drum 20 in a state where the developing cartridge 19 is mounted on the drum cartridge 18 by a spring (not shown) that biases backward. Is provided.
  • the drum gripping portion 85 is provided so as to extend in the left-right direction at a substantially central portion in the left-right direction on the rear surface of the extending portion 84.
  • the drum grip 85 is formed so as to bulge backward as it goes upward.
  • (1-2) Cover Frame The cover frame 59 is disposed above the rear end portion of the base frame 58.
  • the cover frame 59 is formed in a substantially rectangular tube shape that extends in the left-right direction and opens toward the lower side and the front side.
  • the pair of side walls 89 are opposed to each other with an interval in the left-right direction, and are formed in a substantially flat plate shape extending in the up-down direction.
  • the fitting convex portion 95 is formed in a substantially rectangular shape in a side view projecting downward from the lower end portion of the left side wall 89.
  • the vertical length (projection length) of the fitting convex portion 95 is slightly shorter than the vertical length (depth) of the fitting concave portion 67 of the left side wall 61 of the base frame 58.
  • the front-rear direction length of the fitting convex portion 95 is slightly shorter than the front-rear direction length of the fitting concave portion 67 of the left side wall 61 of the base frame 58.
  • a drum shaft insertion hole 97 is formed in the fitting convex portion 95.
  • the drum shaft insertion hole 97 is formed in a substantially circular shape in a side view at the center in the front-rear direction of the fitting convex portion 95.
  • the inner diameter of the drum shaft insertion hole 97 is formed to be substantially the same as the outer diameter of the drum shaft 122 (described later) of the photosensitive drum 20.
  • the positioning portion 96 is formed in a substantially rectangular shape in a side view extending in the vertical direction so as to slightly bulge from the front end edge toward the front side at a substantially vertical center of the left side wall 89 (FIG. 2 ( See also b)). Further, the vertical length of the positioning portion 96 is shorter than the vertical length of the receiving portion 71 of the left side wall 61 of the base frame 58.
  • a fitting convex portion 98 is formed on the right side wall 89.
  • the fitting convex part 98 is formed in a substantially semicircular shape in a side view projecting downward from the lower end part of the right side wall 89.
  • a drum shaft insertion hole 99 is formed in the fitting convex portion 98.
  • the charger support portion 90 is formed in a substantially U-shaped cross section that extends in the left-right direction and is opened downward so as to be installed between the upper ends of both side walls 89. (See FIG. 4).
  • the above-described scorotron charger 22 is supported on the charger support portion 90.
  • the charger support portion 90 is formed with a ventilation opening 100 and a cleaner locking portion insertion hole 101 (see FIG. 6).
  • the cleaner engaging portion insertion hole 101 is formed at the left end portion of the charger support portion 90 at the boundary portion with the left side wall 89.
  • the cleaner engagement portion insertion hole 101 is formed in a substantially rectangular shape in a plan view that is long in the front-rear direction so as to penetrate the charger support portion 90 in the vertical direction.
  • the standing portion 104 is formed in a substantially flat plate shape in front view that protrudes upward from the upper surface in the front-rear direction substantially center of the left end portion of the reinforcing plate 103.
  • the pair of end walls 91 has a substantially rectangular shape in plan view that connects both the left and right ends of the rear end edge of the pair of side walls 89 and the rear end edge of the charger support 90. It is formed in a substantially flat plate shape.
  • the cover transfer member support wall 92 is disposed at a distance from the rear end portion of the charger support portion 90 and is formed in a substantially flat plate shape having a substantially rectangular shape in plan view and extending between the lower end portions of the both end walls 91.
  • an extended portion 107, a plurality of (three) fitting holes 108, and a locking claw 109 are formed at the rear end portion of the cover transfer member support wall 92.
  • the extended portion 107 is formed as a protrusion that protrudes downward from the rear edge of the cover transfer member support wall 92 and extends in the left-right direction.
  • the plurality of fitting holes 108 are arranged in parallel at equal intervals in the left-right direction at approximately the center in the left-right direction of the cover transfer member support wall 92.
  • the fitting hole 108 is formed in a substantially rectangular shape in plan view.
  • the locking claw 109 is arranged at the approximate center in the left-right direction of the cover transfer member support wall 92 so as to overlap the fitting hole 108 arranged in the center in the front-rear direction, and downward from the lower surface of the cover transfer member support wall 92. It protrudes and is formed in a substantially bowl shape that bends forward at its tip (lower end) (see FIG. 4).
  • the outer dimensions in the vertical direction and the left-right direction of the tip (bent portion) of the locking claw 109 are shorter than the vertical dimensions in the vertical direction and the left-right direction of the locking recess 81 (see FIG. 2A). ).
  • An opening area between the charger support section 90, the pair of end walls 91, and the cover transfer member support wall 92 is a discharge as an example of a first opening through which the sheet S is discharged from the nip portion 46.
  • a paper opening 49 is defined.
  • the paper discharge opening 49 is defined in the cover frame 59 and is defined upstream of the charger support portion 90 in the rotation direction of the photosensitive drum 20 (clockwise as viewed from the left side).
  • (1-3) Scorotron Charger and Photosensitive Drum As described above, the scorotron charger 22 and the photosensitive drum 20 are supported on the drum cartridge 18.
  • the scorotron charger 22 includes the above-described charging wire 23 and grid 24 and a wire cleaner 112.
  • the wire cleaner 112 is supported at the upper end of the charger support 90 so as to be slidable in the left-right direction. As shown in FIG. 6, the wire cleaner 112 is formed in a substantially L shape in a side view that is long in the left-right direction. Specifically, the wire cleaner 112 includes a horizontal portion 113 that extends in the front-rear direction and a vertical portion 114 that extends downward from the front end of the horizontal portion.
  • the horizontal portion 113 includes a cleaning unit 115 (see FIG. 2A) and a locking projection 116.
  • the cleaning unit 115 is disposed in the grid 24 through the ventilation opening 100 (see FIG. 2A).
  • the cleaning unit 115 sandwiches the charging wire 23 via a cleaning member 117 such as sponge or non-woven fabric (see FIG. 2A), and is provided so as to be movable in the left-right direction along the charging wire 23.
  • the locking projection 116 is formed in a substantially prismatic shape protruding from the left surface of the horizontal portion 113 to the left side.
  • the vertical dimension and the longitudinal dimension of the locking projection 116 are shorter than the vertical dimension and the longitudinal dimension of the cleaner locking hole 74 of the base frame 58.
  • the vertical portion 114 includes a cleaner grip 118 as an example of a grip that is gripped when the wire cleaner 112 is moved.
  • the cleaner gripping portion 118 extends from the front surface of the vertical portion 114 at the approximate center in the left-right direction toward the front side. That is, the cleaner gripping portion 118 protrudes to the front side, that is, orthogonal to the direction (vertical direction) along the straight line R passing through the axial center of the photosensitive drum 20 and the charging wire 23 when projected in the left-right direction. It protrudes in the direction (front-rear direction) (see FIG. 2A). A rear lower end portion of the cleaner gripping portion 118 is cut out in a substantially rectangular shape in a side view.
  • the drum body 120 is disposed between the facing wall 75 of the left side wall 61 and the facing wall 69 of the right side wall 61 on the front side of the transfer roller 21.
  • the drum body 120 is formed in a substantially cylindrical shape extending in the left-right direction.
  • the drum main body 120 includes a metal base tube formed in a substantially cylindrical shape extending in the left-right direction, and a resin photosensitive layer covering the surface of the base tube.
  • the drum shaft 122 is inserted into the drum main body 120 along the central axis of the photosensitive drum 20.
  • the drum shaft 122 is made of metal and has a substantially cylindrical shape extending in the left-right direction.
  • the drum shaft 122 is formed longer in the left-right direction than the drum main body 120.
  • the left end portion of the drum shaft 122 is rotatably inserted into the drum shaft insertion hole 72 of the left side wall 61 of the base frame 58 and the drum shaft insertion hole 97 of the left side wall 89 of the cover frame 59.
  • the right end of the drum shaft 122 is rotatably inserted into the drum shaft insertion hole 77 of the right side wall 61 of the base frame 58 and the drum shaft insertion hole 99 of the right side wall 89 of the cover frame 59.
  • (1-4) Assembling the Drum Cartridge To assemble the drum cartridge 18, as shown in FIG. 5, first, the transfer roller 21 is rotatably assembled to the base transfer member support wall 63 of the base frame 58, and as described above.
  • the drum main body 120 is disposed in the drum housing portion 86.
  • the reinforcing plate 103 is disposed so as to protrude forward from the cleaner gripping portion 118.
  • a cover frame 59 is combined from above so that the rear end portion of the base frame 58 covers the transfer roller 21 and the photosensitive drum 20.
  • the front end (lower end) of the locking claw 109 of the cover frame 59 is fitted into the locking recess 81 of the base frame 58, and the extended portion 107 of the cover frame 59 is connected to the base of the base frame 58.
  • the transfer member support wall 63 is brought into contact with the upper surface of the rear end portion.
  • the fitting convex portion 98 of the right side wall 89 of the cover frame 59 is brought into contact with the right wall of the opposing wall 75 of the right side wall 61 of the base frame 58 and as shown in FIG. 5. Then, the fitting convex portion 95 of the left side wall 89 of the cover frame 59 is fitted into the fitting concave portion 67 of the left side wall 61 of the base frame 58. At this time, the wire cleaner 112 is disposed in the middle of the cover frame 59 in the left-right direction.
  • the fitting protrusions 80 of the base frame 58 are loosely fitted into the corresponding fitting holes 108 of the cover frame 59, respectively.
  • the cleaner locking portion 73 of the base frame 58 is inserted into the cleaner locking portion insertion hole 101 of the cover frame 59.
  • the upper end portion of the cleaner locking portion 73 inserted into the cleaner locking portion insertion hole 101 protrudes above the wire cleaner 112 assembled to the charger support portion 90.
  • drum shaft insertion hole 97 in the left side wall 89 of the cover frame 59 is opposed to the drum shaft insertion hole 72 in the left side wall 61 of the base frame 58.
  • the drum shaft insertion hole 99 in the right side wall 89 of the cover frame 59 is opposed to the drum shaft insertion hole 77 in the right side wall 61 of the base frame 58.
  • the positioning portion 96 of the left side wall 89 of the cover frame 59 is disposed opposite to the rear side of the receiving portion 71 of the left side wall 61 of the base frame 58 (see FIG. 2B).
  • the wire cleaner 112 is disposed at the left end portion of the cover frame 59 so that the locking protrusion 116 of the wire cleaner 112 is locked in the cleaner locking hole 74 of the cleaner locking portion 73, and the cleaner gripping portion.
  • the standing portion 104 is slidably disposed in the notch at the rear lower end portion of the 118, and the wire cleaner 112 is disposed at the standby position.
  • the cleaner grip 118 is disposed on the front side with respect to the scorotron charger 22.
  • the cleaning member 117 is moved by the cleaning member 117 by gripping the cleaner gripping portion 118 of the wire cleaner 112 disposed at the standby position and moving the wire cleaner 112 along the charging wire 23 over the entire left and right direction of the charging wire 23. 23 is cleaned. After cleaning the charging wire 23, the wire cleaner 112 is again placed at the standby position.
  • the drum shaft 122 is inserted into the drum main body 120 through the drum shaft insertion holes (72, 77, 97, 99) of the base frame 58 and the cover frame 59.
  • the photosensitive drum 20 is rotatably supported by the base frame 58 and the cover frame 59 at both left and right ends of the drum shaft 122. Further, the base frame 58 and the cover frame 59 are integrally connected via a drum shaft 122.
  • the free end portion (front end portion) of the reinforcing plate 103 is disposed at a position protruding forward from the charger support portion 90 relative to the photosensitive drum 20 when projected in the vertical direction.
  • the base transfer member support wall 63 and the cover transfer member support wall 92 are combined to form an example of a transfer member support portion, and the transfer roller 21 is rotatably supported inside thereof.
  • the right side wall of the drum frame 57 is combined with the side wall 61 of the base frame 58 and the side wall 89 of the cover frame 59, so that a guide rail 125 is defined.
  • a guide rail 125 is defined on the side wall 61 of the base frame 58 on the left side wall of 57.
  • the guide surface 126 is formed at the upper end portion of the front side portion of the side wall 61 so as to be inclined downward toward the rear side.
  • the guide groove 127 is formed in a substantially C shape in a side view in which a front side is opened and a front side is notched toward the rear side under a portion connected to the side wall 89 in the rear side portion of the side wall 61.
  • the groove width (vertical length) of the guide groove 127 is formed to be substantially the same length (slightly longer) as the outer diameter of the collar 137 (described later).
  • the guide groove 127 is formed with a substantially rectangular protruding portion 129 that protrudes rearward and downward from the front end portion on the upper side thereof, and the lower surface thereof is continuous with the guide surface 126.
  • the front end surface of the rear portion of the side wall of the drum cartridge 18 is partitioned as a vertical portion 128 extending in the vertical direction.
  • the lower end portion of the vertical portion 128 is continuous with the upper end portion of the protruding portion 129 of the guide groove 127.
  • (2) Developing Cartridge The developing cartridge 19 is disposed on the right side of the developing frame 25 and is provided on the left side of the developing frame 25 with a power supply unit (not shown) to which electric power is input from the outside. And a gear cover 133 (see FIGS. 2B and 3B) that covers the gear train (not shown).
  • the curved surface 135 is partitioned into a substantially arc shape that curves downward from the upper side surface continuously toward the rear side at the rear end portion of the claw-shaped portion 134.
  • a substantially cylindrical collar 137 is fitted on both ends of the developing roller shaft 52.
  • the gear cover 133 covers the gear train (not shown), and is fixed to the left side wall of the developing frame 25 so that the collar 137 is exposed to the left of the developing cartridge 19 from the rear end. .
  • the rear side portion is defined as a contact portion 140 that protrudes upward from the developing frame 25.
  • the developing grip 25 is provided on the developing frame 25 of the developing cartridge 19.
  • the collar 137 of the developing cartridge 19 is fitted in the guide groove 127 of the drum cartridge 18. That is, the rubber roller 53 of the developing roller 34 is pressed against the drum body 120 of the photosensitive drum 20 from the front side by the collar 137 being guided toward the photosensitive drum 20 by the guide groove 127.
  • the separation of the rear end portion of the developing cartridge 19 is controlled by the contact between the upper end portion of the collar 137 and the lower end portion of the protruding portion 129 of the guide groove 127.
  • the contact portion 140 of the gear cover 133 of the developing cartridge 19 contacts the free end portion (front end portion) of the reinforcing plate 103 of the drum cartridge 18.
  • the developing cartridge 19 when the developing cartridge 19 is rotated along the separation direction Y with the contact portion between the curved surface 135 and the vertical portion 128 as a fulcrum, the developing cartridge 19 is detached from the drum cartridge 18 upward.
  • the developing cartridge 19 and the drum cartridge 18 are operated in reverse to the above-described detachment operation.
  • the rear end portion of the developing cartridge 19 is inserted into the rear end portion of the cartridge mounting portion 87 of the drum cartridge 18 from above.
  • the developing cartridge 19 is attached to and detached from the cartridge mounting portion 87 of the drum cartridge 18 while being rotated. 5. Mounting of Process Cartridge on Main Body Casing To mount the process cartridge 15 on the main body casing 2, first, as shown in FIG. 1 and described above, the top cover 7 of the main body casing 2 is placed in the open position.
  • the cleaner gripping portion 118 is disposed on the front side with respect to the scorotron charger 22, and therefore, when the top cover 7 is opened in a state where the process cartridge 15 is mounted on the main body casing 2, the cleaner gripping portion 118 is brought to the standby position.
  • the cleaner gripping part 118 of a certain wire cleaner 112 can be gripped, and the charging wire 23 can be cleaned. 6). Air Flow Inside the Printer During image formation, as shown in FIG. 1, the sheet S is heated and pressurized as it passes between the heating roller 38 and the pressure roller 39 of the fixing unit 17 as described above. And the image is heat-fixed.
  • the air flow A ⁇ b> 1 toward the heating roller 38 is generated by the heat generated by the heating roller 38.
  • the air flow A ⁇ b> 1 passes between the rear lower end portion of the scanner unit 16 and the upper end portion of the front wall 64 of the process cartridge 15 from the opened paper opening 6.
  • the airflow A1 flows from the front side to the rear side (in the order of the front wall 64, the developing cartridge 19, and the charger support unit 90) above the process cartridge 15, and is on the upper side in the vicinity of the paper feed opening 48 of the process cartridge 15.
  • an air flow A ⁇ b> 2 that flows from the scorotron charger 22 toward the photosensitive drum 20 is generated by the discharge of the charging wire 23. .
  • the air flow A ⁇ b> 2 is sucked from the ventilation opening 100, travels toward the photosensitive drum 20 through the grid 24, and hits the surface of the photosensitive drum 20, thereby scattering transfer residual toner attached to the photosensitive drum 20.
  • the airflow A2 that hits the surface of the photosensitive drum 20 is separated into an airflow A3 that goes to the downstream side (rear side) in the rotation direction of the photosensitive drum 20 and an airflow A4 that goes to the upstream side (front side).
  • the airflow A3 is discharged from the process cartridge 15 to the fixing unit 17 through the paper feed opening 48 and discharged to the outside of the printer 1 together with the airflow A1.
  • the airflow A4 is generated from the process cartridge 15 to the front end portion of the charger support portion 90 (specifically, the front end portion of the reinforcing plate 103) and the rear upper end portion of the developing cartridge 19 while entraining toner in the atmosphere around the developing roller 34. And the airflow A1 flowing above the process cartridge 15 is joined.
  • the airflow A4 flows together with the airflow A1 above the charger support portion 90 from the front side toward the rear side, and part of the merged airflow (airflow A1 and airflow A4) is discharged to the outside of the printer 1.
  • the remainder of the combined airflow (airflow A1 and airflow A4) is again sucked into the scorotron charger 22 from the ventilation opening 100 and becomes airflow A2 toward the photosensitive drum 20. 7).
  • Operation and Effect (1) According to the drum cartridge 18, as shown in FIG. 5, the drum frame 57 is disposed adjacent to the charger support portion 90 in the drum frame 57. Can be planned.
  • the cleaner holding portion 118 protruding to the front side is held and the charging wire 23 is attached.
  • the cleaning member 117 can be moved along.
  • the charging wire 23 can be cleaned without directly applying a load to the charger support portion 90. .
  • the charging wire 23 can be cleaned while suppressing the relative arrangement of the scorotron charger 22 and the photosensitive drum 20 from being changed.
  • the paper discharge opening 49 is formed in the cover frame 59 of the drum frame 57.
  • the position of the paper discharge opening 49 can be stabilized by combining the cover frame 59 and the base frame 58 as compared with the case where the paper discharge opening 49 is formed.
  • the cover frame 59 includes the charger support portion 90 and the cover transfer member support wall 92
  • the base frame 58 includes the base transfer member.
  • a support wall 63 is provided.
  • the transfer member support portion can be formed from the cover transfer member support wall 92 and the base transfer member support wall 63 with a simple configuration in which the cover frame 59 and the base frame 58 are combined.
  • the charger support portion 90 includes the reinforcing plate 103 formed over the axial direction of the charging wire 23. The rigidity of 90 can be improved.
  • the charging wire 23 can be cleaned while the relative arrangement of the scorotron charger 22 and the photosensitive drum 20 is reliably maintained.
  • the reinforcing plate 103 that protrudes forward from the charger support portion 90 relative to the cleaner gripping portion 118, rather than the cleaner gripping portion 118, as shown in FIG. Since it is arranged on the photosensitive drum 20 side, it is possible to prevent the cleaner gripping portion 118 and the photosensitive drum 20 from contacting each other.
  • the charging wire 23 can be cleaned by gripping the cleaner grip 118 without touching the photosensitive drum 20.
  • the front end portion (free end portion) of the reinforcing plate 103 is more forward than the photosensitive drum 20 from the charger support portion 90. Since it is arranged at the protruding position, it is possible to shield light from the cleaner gripping portion 118 side in the vertical direction.
  • the cleaner gripping portion 118 can be protected by the reinforcing plate 103 when the developing cartridge 19 is detached.
  • the airflow A ⁇ b> 2 generated from the scorotron charger 22 toward the photosensitive drum 20 strikes the surface of the photosensitive drum 20, thereby scattering the toner attached to the photosensitive drum 20.
  • the air current A3 is directed to the downstream side (rear side) in the rotation direction of the photosensitive drum 20, and the air current A4 is directed to the upstream side (front side).
  • the airflow A4 directed to the front side is returned to the vicinity of the scorotron charger 22 again on the airflow A1 flowing above the charger support portion 90 while the toner in the atmosphere around the developing roller 34 is involved.
  • the reinforcing plate 103 is formed on the charger support portion 90, the airflow A4 is guided away from the charger 22. As a result, the airflow A4 can be reduced from entering the charger 22 together with the scattered toner.
  • the scattered toner can be prevented from entering the scorotron charger 22.
  • the scorotron charger 22, the developing roller 34, and the transfer roller 21 are arranged substantially equally around the photosensitive drum 20. A series of operations in which the surface of the photosensitive drum 20 is charged by the scorotron charger 22, a toner image is formed on the surface of the photosensitive drum 20 by the developing roller 34, and the toner image is transferred onto the paper S together with the transfer roller 21 with a good balance. It can be carried out stably. 8).
  • Second Embodiment With reference to FIG. 7, a process cartridge 15 according to a printer 1 of a second embodiment of the image forming apparatus will be described. In the second embodiment, members similar to those in the first embodiment described above are denoted by the same reference numerals, and description thereof is omitted.
  • the reinforcing plate 103 is disposed so as to protrude forward from the cleaner gripping portion 118.
  • the cleaner gripping portion 118 may have a shape protruding forward from the reinforcing plate 103. That is, when the wire cleaner 112 is not positioned at the standby position but at any position in the left-right direction along the charging wire 23, the cleaner gripping portion 118 is brought into contact with the developing cartridge 19. May be projected so as to intersect with the attachment / detachment locus of the developing cartridge 19 (specifically, the attachment / detachment locus T of the rear end portion of the layer thickness regulating blade 35).
  • the layer thickness regulating blade 35 of the developing cartridge 19 and the cleaner gripping portion 118 interfere when the developing cartridge 19 is mounted.
  • the printer 1 described above is an embodiment of the image forming apparatus of the present invention, and the present invention is not limited to the above-described embodiment.
  • the image forming apparatus of the present invention can be configured as a color printer in addition to the above-described monochrome printer.
  • the image forming apparatus When the image forming apparatus is configured as a color printer, the image forming apparatus includes a direct tandem type color printer including a plurality of photosensitive members and a recording medium conveying member, a plurality of photosensitive members, an intermediate transfer member, and a transfer member. It can be configured as an intermediate transfer type tandem color printer.
  • process cartridge 15 of the present invention is configured as an integrated type integrally including the drum cartridge 18 and the developing cartridge 19 in addition to the separation type in which the drum cartridge 18 and the developing cartridge 19 are separated as described above. You can also.
  • the photosensitive drum 20 can be provided in the main casing 2 and only the developing cartridge 19 can be attached to and detached from the main casing 2.
  • the developing cartridge 19 can be configured such that a toner cartridge that contains toner is detachably attached to a frame having the developing roller 34.
  • a photosensitive member such as a photosensitive belt can be applied.
  • a developer carrier such as a developing sleeve, a developing belt, or a brush-like roller can be applied.
  • a supply member such as a supply sleeve, a supply belt, or a brush-like roller can be applied.
  • a conveying member such as an auger screw or a conveying belt can be applied.
  • a contact type transfer member such as a transfer belt, a transfer brush, a transfer blade, or a film type transfer device, or a non-contact type transfer member such as a corotron type is used. It can also be applied.
  • a non-contact charger such as a corotron charger, a sawtooth discharge member, or a contact charger such as a charging roller may be applied. it can.
  • an exposure member such as an LED unit can be applied.
  • the image forming apparatus of the present invention can also be configured as a multi-function machine equipped with an image reading unit and the like.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Electrophotography Configuration And Component (AREA)

Abstract

La présente invention concerne : une cartouche à corps photosensible qui peut nettoyer un fil de charge et éviter toute modification du positionnement relatif d'un chargeur et d'un corps photosensible ; une cartouche de traitement ; ainsi qu'un dispositif de formation d'image comportant ces cartouches. Une cartouche à tambour (18) comprend un tambour photosensible (20) et un chargeur du type scorotron (22), et une ouverture (49) pour la sortie du papier se trouve à proximité d'un support de chargeur (90) portant ledit chargeur du type scorotron (22). Une unité de retenue d'organe de nettoyage (118), qui retient un élément de nettoyage (117) conçu pour nettoyer le fil de charge (23) du chargeur du type scorotron (22) lors du déplacement de cet élément de nettoyage (117), dépasse dans une direction perpendiculaire à la direction suivant la ligne (R) qui passe par le fil de charge (23) et par le centre axial du tambour photosensible (20), en formant une saillie dans la direction gauche-droite.
PCT/JP2012/080842 2012-07-09 2012-11-29 Cartouche à corps photosensible, cartouche de traitement et dispositif de formation d'image WO2014010130A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201280074541.8A CN104428722B (zh) 2012-07-09 2012-11-29 感光体盒、处理盒及图像形成装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012154151A JP5900201B2 (ja) 2012-07-09 2012-07-09 感光体カートリッジ、プロセスカートリッジおよび画像形成装置
JP2012-154151 2012-07-09

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WO2014010130A1 true WO2014010130A1 (fr) 2014-01-16

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JP (1) JP5900201B2 (fr)
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Publication number Priority date Publication date Assignee Title
EP3985441A1 (fr) * 2020-10-14 2022-04-20 Canon Kabushiki Kaisha Élément mobile et appareil de formation d'images

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JP6183270B2 (ja) * 2014-03-31 2017-08-23 ブラザー工業株式会社 感光体カートリッジ

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JPH0968851A (ja) * 1995-09-01 1997-03-11 Ricoh Co Ltd 電子写真装置の帯電装置及びプロセスカートリッジ
JP2011018083A (ja) * 2010-10-26 2011-01-27 Brother Industries Ltd 画像形成装置およびプロセスカートリッジ
JP2011065181A (ja) * 2010-11-25 2011-03-31 Brother Industries Ltd プロセスユニット

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JP2009181002A (ja) * 2008-01-31 2009-08-13 Brother Ind Ltd ドラムカートリッジおよび現像カートリッジ
JP4636097B2 (ja) * 2008-03-07 2011-02-23 ブラザー工業株式会社 プロセスユニット
JP2009244555A (ja) * 2008-03-31 2009-10-22 Brother Ind Ltd 現像カートリッジ
JP4978689B2 (ja) * 2009-12-25 2012-07-18 ブラザー工業株式会社 現像ユニット

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JPH0968851A (ja) * 1995-09-01 1997-03-11 Ricoh Co Ltd 電子写真装置の帯電装置及びプロセスカートリッジ
JP2011018083A (ja) * 2010-10-26 2011-01-27 Brother Industries Ltd 画像形成装置およびプロセスカートリッジ
JP2011065181A (ja) * 2010-11-25 2011-03-31 Brother Industries Ltd プロセスユニット

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3985441A1 (fr) * 2020-10-14 2022-04-20 Canon Kabushiki Kaisha Élément mobile et appareil de formation d'images
JP2022064597A (ja) * 2020-10-14 2022-04-26 キヤノン株式会社 移動部材、および、画像形成装置
US11703774B2 (en) 2020-10-14 2023-07-18 Canon Kabushiki Kaisha Movable member and image forming apparatus
JP7314110B2 (ja) 2020-10-14 2023-07-25 キヤノン株式会社 移動部材、および、画像形成装置
US11988974B2 (en) 2020-10-14 2024-05-21 Canon Kabushiki Kaisha Movable member and image forming apparatus
JP7551850B2 (ja) 2020-10-14 2024-09-17 キヤノン株式会社 移動部材、および、画像形成装置

Also Published As

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JP2014016499A (ja) 2014-01-30
JP5900201B2 (ja) 2016-04-06
CN104428722A (zh) 2015-03-18
CN104428722B (zh) 2019-04-19

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