WO2014010122A1 - Cartouche - Google Patents

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Publication number
WO2014010122A1
WO2014010122A1 PCT/JP2012/080834 JP2012080834W WO2014010122A1 WO 2014010122 A1 WO2014010122 A1 WO 2014010122A1 JP 2012080834 W JP2012080834 W JP 2012080834W WO 2014010122 A1 WO2014010122 A1 WO 2014010122A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
drum
cartridge
transfer roller
wall
Prior art date
Application number
PCT/JP2012/080834
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 CN201280074639.3A priority Critical patent/CN104583878B/zh
Publication of WO2014010122A1 publication Critical patent/WO2014010122A1/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
    • 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

Definitions

  • the present invention relates to a cartridge mounted on an image forming apparatus employing an electrophotographic system.
  • a photosensitive member cartridge for example, a drum cartridge that is assembled so that an upper casing in which a scorotron charger and a cleaning member are assembled is covered from above on a lower casing in which a photosensitive drum is assembled. It has been proposed (see, for example, Patent Document 1).
  • the upper housing is formed in a longitudinal direction in the left-right direction.
  • an object of the present invention is to provide a cartridge capable of ensuring the positioning accuracy of the first frame relative to the second frame even when the first frame is distorted.
  • the cartridge of the present invention has a first axis, is configured to rotate about the first axis, and is configured to carry a developer image.
  • a second frame combined with the first frame.
  • the first frame includes a first positioned portion provided at one end portion in the axial direction in which the first axis extends and a second positioned portion provided at the other end portion in the axial direction.
  • the second frame is provided at one end portion in the axial direction, and is provided at a first positioning portion that contacts the first positioned portion of the first frame, and at the other end portion in the axial direction. And a second positioning portion that contacts the positioned portion.
  • the first positioning portion and the second positioning portion are disposed so as to be shifted from each other by approximately 90 ° in the rotation direction of the image carrier when projected in the axial direction.
  • the axial end portions of the first frame are positioned relative to the axial end portions of the second frame at positions that are substantially 90 ° apart from each other in the rotational direction of the image carrier. can do.
  • the first frame when the first frame has an unintended distortion such as warping or twisting, the first frame is positioned with respect to the second frame in two directions substantially orthogonal to each other so as to correct the distortion. Can do.
  • the cartridge of the present invention may further include a transfer member that is pressed against the image carrier.
  • the first frame may support the image carrier in a rotatable manner.
  • the first positioning portion may be disposed opposite to the first positioned portion on the downstream side in the pressure contact direction of the transfer member.
  • the first positioned portion can be positioned on the first positioning portion by using the pressing force of the transfer member to the image carrier.
  • the cartridge of the present invention may further include a passive member that is provided at one end portion in the axial direction of the image carrier so as not to be relatively rotatable and to which an external driving force is input.
  • the 1st frame may be provided with the protrusion part which protrudes to the one side in an orthogonal direction in at least any one of the one side edge part in the axial direction, and the other side edge part in an axial direction.
  • the protrusion may be formed in a semicircular shape with the first axis as the center when viewed from the axial direction, and the image carrier may be rotatably supported at the radial center.
  • the image carrier can be rotatably supported by the protruding portion of the first frame.
  • the positioning accuracy of the first frame relative to the second frame can be ensured even when the first frame is distorted.
  • FIG. 1 is a central sectional view of a printer having a drum cartridge as an embodiment of the cartridge of the present invention.
  • FIG. 2 is an exploded perspective view of the drum cartridge shown in FIG. 1 as viewed from the right front side.
  • FIG. 3 is an exploded perspective view of the drum cartridge shown in FIG. 1 viewed from the left rear side.
  • 4 is a perspective view of the drum cartridge shown in FIG. 1 as viewed from the lower left side.
  • FIG. 5 is a perspective view seen from the lower right side of the cover frame shown in FIG.
  • FIG. 6 is a perspective view of the cover frame shown in FIG. 5 as viewed from the left rear side.
  • FIG. 7 is a plan view of the drum cartridge shown in FIG. 2 and shows a state in which the cover frame is removed.
  • FIG. 8 is a rear view of the drum cartridge shown in FIG.
  • FIG. 9 is a right side view of the drum cartridge shown in FIG.
  • FIG. 10 is a left side view of the drum cartridge shown in FIG.
  • the printer 1 includes a main body casing 2 having a substantially box shape.
  • the printer 1 includes a paper feeding unit 3 for feeding the paper S and an image forming unit 4 for forming an image on the fed paper S in the main body casing 2.
  • 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 paper opening 6 is formed to penetrate in the front-rear direction at the lower end of the front end of the main casing 2.
  • 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 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. (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 process cartridge 15 includes a drum cartridge 18 as an example of a cartridge configured to be detachable from the main casing 2 and a developing cartridge 19 configured to be detachable from the drum cartridge 18.
  • the drum cartridge 18 includes a photosensitive drum 20 as an example of an image carrier, a transfer roller 21 as an example of a transfer member, and a scorotron charger 22.
  • the photosensitive drum 20 is formed in a substantially cylindrical shape that is long in the left-right direction (axial direction), and is provided in the rear portion of the drum cartridge 18.
  • the photosensitive drum 20 is rotatable about the center axis A (first axis) as a rotation center.
  • the transfer roller 21 is formed in a substantially cylindrical shape extending in the left-right direction, and is 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 central axis thereof is positioned slightly below the central axis A 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.
  • a virtual line segment (not shown) connecting the central axis of the transfer roller 21 and the central axis A of the photosensitive drum 20, and a virtual straight line (not shown) extending horizontally along the front-rear direction.
  • the acute angle formed by 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 gap in the circumferential direction of the photosensitive drum 20 with respect to the transfer roller 21, and connects the central axis A of the photosensitive drum 20 and the central axis of the transfer roller 21.
  • An angle formed by a virtual line segment (not shown) and a virtual line segment (not shown) connecting the central axis A of the photosensitive drum 20 and the charging wire 23 (described later) is about 120 °.
  • 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 rear 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 inner surface (upper surface) of the lower wall.
  • the supply roller groove 30 has a substantially semicircular shape along the peripheral surface of a supply roller 33 (described later), and is formed so as to be recessed downward in the rearward direction.
  • 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 from the rear end portion of the supply roller groove 30 to the rear upper side.
  • 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 attaching surface 32 is disposed to face the lower portion of the photosensitive drum 20 with a space in the vertical direction.
  • the lower film adhering surface 32 is disposed so as to overlap with the central axis A of the photosensitive drum 20 when projected in the vertical direction (orthogonal direction).
  • the developing chamber 27 is provided with a supply roller 33, a developing roller 34, a layer thickness regulating blade 35, and a lower film 36.
  • the supply roller 33 is formed in a substantially cylindrical shape extending in the left-right direction, and is 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 (slightly above the toner storage chamber 26).
  • the supply roller 33 can rotate around its central axis.
  • the developing roller 34 is formed in a substantially cylindrical shape extending in the left-right direction, and is provided in the rear portion of the developing chamber 27 so that the circumferential surface in the lower portion thereof and the developing roller facing surface 31 face each other with a space therebetween. It has been.
  • the developing roller 34 can rotate around its center axis.
  • the developing roller 34 is provided such that the upper and rear portions thereof are exposed from the developing chamber 27.
  • the developing roller 34 contacts the supply roller 33 from the upper rear side and contacts 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 central axis of the supply roller 33, the central axis of the developing roller 34, and the central axis A 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 arranged with a space in the circumferential direction of the photosensitive drum 20 with respect to the scorotron charger 22, and a virtual line segment connecting the central axis A of the photosensitive drum 20 and the charging wire 23. (Not shown) and an imaginary line segment (not shown) connecting the central axis A of the photosensitive drum 20 and the central axis of the developing roller 34 are arranged so that the angle of the angle is about 120 °. ing. 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 on the upper side of 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 rearward from the scanner unit 16 and exposes the peripheral surface at the front end 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 where the photosensitive drum 20 and the transfer roller 21 are in contact with the central axis A of the photosensitive drum 20. Is set to the side.
  • the developing cartridge 19 is arranged below the emission locus of the laser beam L, and the scorotron charger 22 is arranged above the emission locus of the laser beam L.
  • 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 on the upper side of 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 surface of the photosensitive drum 20 is uniformly charged by the scorotron charger 22 and then exposed by the scanner unit 16. Thereby, an electrostatic latent image based on the image data is formed on the peripheral surface of the photosensitive drum 20.
  • the toner carried on the developing roller 34 is supplied to the electrostatic latent image on the circumferential surface of the photosensitive drum 20, so that a toner image (developer image) is carried on the circumferential surface of the photosensitive drum 20.
  • the sheets S stacked on the sheet loading unit 9 are sent between the sheet feeding roller 12 and the sheet feeding pad 13 by the rotation of the pickup roller 11 and are turned one by one by the rotation of the sheet feeding roller 12. Thereafter, the paper S that has been squeezed is conveyed to the paper feed path 14 by the rotation of the paper feed roller 12 and is imaged one by one at a predetermined timing (between the photosensitive drum 20 and the transfer roller 21). Paper is fed to
  • the sheet S is conveyed between the photosensitive drum 20 and the transfer roller 21 from the lower side to the upper side. At this time, the toner image is transferred onto the paper S to form an image.
  • 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 a paper discharge tray 41 formed on the upper surface of the main casing 2 by the paper discharge roller 40.
  • the paper S is fed from the paper placement unit 9, passes between the photosensitive drum 20 and the transfer roller 21 (nip portion), and then passes between the heating roller 38 and the pressure roller 39. After that, the paper is transported through a substantially C-shaped transport path in side view so that the paper is discharged onto the paper discharge tray 41.
  • the drum cartridge 18 includes a drum frame 51.
  • the drum frame 51 includes a base frame 52 as an example of a second frame and a cover frame 53 as an example of a first frame.
  • the side on which the photosensitive drum 20 is disposed is the rear side of the drum cartridge 18, and the side on which the scorotron charger 22 is disposed is the upper side. . That is, the up / down / front / rear direction with respect to the drum cartridge 18 is slightly different from the up / down / front / rear direction with respect to the printer 1, and the drum cartridge 18 has the rear side at the rear upper side of the printer 1 and the front side at the front lower side of the printer 1. It is attached to.
  • the base frame 52 is formed in a bottomed frame shape having a substantially rectangular shape in plan view.
  • the base frame 52 includes a pair of left and right side walls 54, a lower wall 55, a rear wall 57 and a front wall 56.
  • the right side wall 54 (hereinafter referred to as the right wall 54R) is formed in a substantially flat plate shape that is long in the front-rear direction.
  • a fitting recess 60, a facing portion 59, and a receiving portion 61 as an example of a second positioning portion are formed at the rear end portion of the right wall 54R.
  • the fitting recess 60 is cut out from the upper edge of the right wall 54R toward the lower side, and has a substantially semicircular cutout in a side view with the upper side opened.
  • the facing portion 59 is formed in a substantially flat plate shape extending upward from the inner peripheral surface of the fitting recess 60 and the upper end edge of the right wall 54R in the left half of the right wall 54R.
  • a drum shaft insertion hole 62 is formed in the facing portion 59.
  • the drum shaft insertion hole 62 is disposed at the center in the front-rear direction of the facing portion 59 so as to correspond to the center of the fitting recess 60, and is formed in a substantially circular shape when viewed from the side.
  • the inner diameter of the drum shaft insertion hole 62 is slightly larger (substantially the same diameter) than the outer diameter of the drum shaft 80 of the photosensitive drum 20.
  • the receiving portion 61 is formed in a substantially rectangular shape in a side view extending in the front-rear direction so that the receiving portion 61 slightly bulges upward from the upper edge of the right half of the right wall 54R on the front side of the fitting recess 60. Yes.
  • the left side wall 54 (hereinafter referred to as the left wall 54L) is formed in a substantially flat plate shape that is long in the front-rear direction. At the rear end portion of the left wall 54L, a fitting recess 63, a protruding portion 66, a facing portion 64, and a drum gear exposed portion 69 are formed.
  • the fitting recess 63 has a notch that is cut out from the upper end edge of the left wall 54L toward the lower side and has a substantially rectangular shape in side view with the upper side open.
  • the protruding portion 66 is formed in a substantially rectangular flat plate shape that protrudes upward from the front peripheral edge of the fitting recess 63.
  • the protruding portion 66 is provided with a receiving portion 65 as an example of a first positioning portion.
  • the receiving portion 65 is formed in a substantially rectangular shape in a side view extending in the vertical direction so that the rear surface slightly bulges toward the rear side from the rear end edge of the left half at the substantially vertical center of the protruding portion 66. ing. More specifically, the receiving portion 65 is upstream in the counterclockwise direction when viewed from the right side (that is, upstream in the clockwise direction when viewed from the left side) with respect to the receiving portion 61 of the right wall 54R when projected in the left-right direction. ) So as to be displaced by approximately 90 ° (see FIG. 9).
  • the facing portion 64 is provided on the front side of the protruding portion 66.
  • the facing portion 64 is formed in a substantially flat plate shape extending upward from the inner peripheral surface of the fitting recess 63 and the upper end edge of the left wall 54L in the right half of the left wall 54L.
  • the opposed portion 64 is formed with a drum shaft insertion hole 58 and a wire cleaner locking portion 67.
  • the drum shaft insertion hole 58 is disposed at the center in the front-rear direction of the facing portion 64 so as to coincide with the drum shaft insertion hole 62 of the right wall 54R when projected in the left-right direction, and is formed in a substantially circular shape when viewed from the side. Yes.
  • the inner diameter of the drum shaft insertion hole 58 is substantially the same diameter as the drum shaft insertion hole 62 of the right wall 54R.
  • the wire cleaner locking part 67 is formed in a substantially rectangular flat plate shape in side view extending upward from the upper end part of the facing part 64.
  • a locking hole 68 is formed in the upper end portion of the wire cleaner locking portion 67.
  • the locking hole 68 is formed in a substantially rectangular shape in side view extending in the front-rear direction.
  • the drum gear exposed portion 69 is a concave portion having a substantially arc shape when viewed from the side so as to be recessed toward the rear upper side from the rear lower end portion of the left wall 54L on the lower side of the fitting concave portion 63. It is formed as.
  • the lower wall 55 is formed in a substantially flat plate shape that is long in the left-right direction so as to be laid between the lower end portions of the side walls 54.
  • the rear end portion of the lower wall 55 is connected to the front lower end portion of the drum gear exposed portion 69.
  • the rear wall 57 is disposed at a rear side of the rear end portion of the lower wall 55 with an interval, and is spanned between the rear end portions of the side walls 54.
  • a space between the rear wall 57 and the lower wall 55 functions as a paper feed opening for introducing the paper S between the photosensitive drum 20 and the transfer roller 21.
  • a transfer roller support 70 is provided on the rear wall 57.
  • the rear wall 57 has a drum gear exposure opening 72 formed therein.
  • the transfer roller support portion 70 is formed in a substantially partial cylindrical shape extending in the left-right direction so as to bulge from the rear wall 57 to the rear side.
  • the transfer roller support portion 70 is closed at both ends in the left-right direction and is opened toward the upper side and the front side.
  • the right end portion of the transfer roller support portion 70 is disposed on the inner side (left side) in the left-right direction than the right wall 54R.
  • the left end portion of the transfer roller support portion 70 is disposed on the inner side (right side) in the left-right direction than the left wall 54L.
  • one transfer roller bearing support portion 71 is provided at each of both ends of the transfer roller support portion 70 in the left-right direction.
  • the transfer roller bearing support portion 71 extends in a direction connecting the rear lower side and the front upper side, and is formed in a substantially rectangular tube shape in which both ends in the extending direction are opened.
  • a guide opening 73 is formed in the inner wall in the left-right direction of the transfer roller bearing support portion 71.
  • the guide opening 73 extends in a direction connecting the rear lower side and the front upper side (the X direction shown in FIG. 10).
  • the opening width of the guide opening 73 (the length in the direction perpendicular to the horizontal direction and the extending direction of the guide opening 73) is slightly wider (substantially the same width) than the outer diameter of the transfer roller shaft 86 (described later). is there.
  • a protrusion 76, a plurality (three) of fitting protrusions 77, and a locking recess 78 are provided on the rear upper end of the transfer roller support 70. And are formed.
  • the protrusion 76 protrudes toward the front side from the inner surface (front surface) of the transfer roller support portion 70 between the two transfer roller bearing support portions 71 and extends in the left-right direction.
  • the plurality of fitting protrusions 77 are arranged in parallel at equal intervals in the left-right direction at the approximate center in the left-right direction of the transfer roller support portion 70.
  • the fitting protrusion 77 is formed in a substantially rectangular shape in rear view so as to protrude upward from the upper surface of the rear upper end portion of the transfer roller support portion 70.
  • the locking recess 78 is formed in a rectangular shape in rear view that is recessed from the rear surface to the front side of the transfer roller support portion 70 at the approximate center in the left-right direction of the transfer roller support portion 70.
  • the drum gear exposure opening 72 is formed in a substantially rectangular shape in rear view so as to correspond to the drum gear exposure portion 69 between the left end portion of the transfer roller support portion 70 and the left wall 54L (see FIG. 8).
  • the front wall 56 is formed in a substantially flat plate shape extending in the left-right direction so as to continuously extend from the front end portion of the lower wall 55 and extend between the front end portions of the side walls 54.
  • (2) Cover Frame The cover frame 53 is disposed above the rear end portion of the base frame 52 as shown in FIGS. 3 and 4.
  • the cover frame 53 is formed in a substantially rectangular tube shape that extends in the left-right direction and is opened toward the lower side and the front side.
  • the cover frame 53 includes a pair of left and right side walls 91, an upper wall 92, and a rear wall 93.
  • the right side wall 91 (hereinafter referred to as the right wall 91R) is formed in a flat plate shape that is substantially rectangular in side view and extends in the front-rear direction.
  • a fitting convex portion 94 as an example of a protruding portion and a positioned portion 95 as an example of a second positioned portion are formed.
  • the fitting convex portion 94 is formed in a substantially semicircular shape in side view projecting downward from the lower end portion of the right wall 91R.
  • the vertical length (projection length) of the fitting convex portion 94 is slightly shorter than the vertical length (depth) of the fitting concave portion 60 of the right wall 54 ⁇ / b> R of the base frame 52.
  • the front-rear direction length of the fitting convex portion 94 is slightly shorter than the front-rear direction length of the fitting concave portion 60 of the right wall 54R of the base frame 52.
  • a drum shaft insertion hole 96 is formed in the fitting convex portion 94.
  • the drum shaft insertion hole 96 is formed in a substantially circular shape in a side view at the center in the front-rear direction of the fitting convex portion 94 so as to correspond to the center of the fitting convex portion 94.
  • the inner diameter of the drum shaft insertion hole 96 is slightly larger (substantially the same diameter) than the outer diameter of the drum shaft 80 of the photosensitive drum 20.
  • the positioned portion 95 is formed in a substantially rectangular shape in a side view extending in the front-rear direction so that it slightly bulges downward from the lower end edge of the right wall 91R on the front side of the fitting convex portion 94. Yes. Further, the longitudinal length of the positioned portion 95 is shorter than the longitudinal length of the receiving portion 61 of the right wall 54 ⁇ / b> R of the base frame 52.
  • the right wall 91R includes a wire electrode 97, a grid electrode 98, and an electrode cover 99.
  • the wire electrode 97 is disposed at the front upper end of the right wall 91R.
  • the wire electrode 97 is electrically connected to the charging wire 23.
  • the wire electrode 97 has a plurality (two) of contacts 104.
  • the plurality of contacts 104 are arranged in parallel at intervals in the vertical direction.
  • the contact 104 is formed in a substantially linear shape in a side view extending in the front-rear direction so as to protrude rightward.
  • the grid electrode 98 is disposed at the rear upper end portion of the right wall 91R, and is formed in a substantially rectangular flat plate shape that is long in the vertical direction in side view. Note that the right surface of the grid electrode 98 is disposed on the inner side (left side) in the left-right direction than the contact 104 of the wire electrode 97.
  • the grid electrode 98 extends in a direction (vertical direction) substantially orthogonal to a direction (a direction from the front upper side to the rear lower side) in which the contact 104 of the wire electrode 97 extends.
  • the grid electrode 98 is electrically connected to the grid 24. Further, locking claws 102 are provided at both ends of the grid electrode 98 in the vertical direction.
  • the electrode cover 99 is provided at the upper end of the right wall 91R.
  • the electrode cover 99 is formed in a substantially rectangular shape in a side view extending in the front-rear direction so as to cover the wire electrode 97 and the grid electrode 98.
  • the electrode cover 99 is formed with a wire electrode covering portion 100 and a grid electrode exposure opening 101.
  • the wire electrode covering portion 100 is disposed at the front end portion of the electrode cover 99 and is formed in a substantially prismatic shape extending from the right surface of the electrode cover 99 to the right side.
  • a contact exposure opening 103 is formed in the wire electrode covering portion 100.
  • the contact exposure opening 103 is formed in the right wall of the wire electrode covering portion 100 so as to penetrate the plurality of contacts 104 of the wire electrode 97 in a substantially rectangular shape in a side view.
  • the wire electrode 97 is accommodated in the wire electrode covering portion 100 so that the contact 104 is exposed to the right side through the contact exposure opening 103. In other words, the wire electrode 97 is covered from the outside by the wire electrode covering portion 100 in the vertical direction and the front-back direction.
  • the grid electrode exposure opening 101 is formed through the rear end portion of the electrode cover 99 in a substantially rectangular shape in a side view.
  • a grid electrode 98 is supported in the grid electrode exposure opening 101 so that the locking claw 102 is locked to the peripheral edge in the vertical direction. Thereby, the grid electrode 98 is exposed to the right side through the grid electrode exposure opening 101.
  • the left side wall 91 (hereinafter referred to as the left wall 91L) is formed in a substantially flat plate shape extending in the vertical direction. On the left wall 91L, a fitting convex portion 111 and a positioned portion 112 as an example of a first positioned portion are formed.
  • the fitting convex part 111 is formed in a substantially rectangular shape in a side view projecting downward from the lower end part of the left wall 91L.
  • the vertical length (projection length) of the fitting convex portion 111 is slightly shorter than the vertical length (depth) of the fitting concave portion 63 of the left wall 54 ⁇ / b> L of the base frame 52.
  • the front-rear direction length of the fitting convex portion 111 is slightly shorter than the front-rear direction length of the fitting concave portion 63 of the left wall 54 ⁇ / b> L of the base frame 52.
  • a drum shaft insertion hole 113 is formed in the fitting convex portion 111.
  • the drum shaft insertion hole 113 is formed in a substantially circular shape in a side view in the front-rear direction center of the fitting convex portion 111 so as to coincide with the drum shaft insertion hole 96 of the right wall 91R when projected in the left-right direction. Yes.
  • the inner diameter of the drum shaft insertion hole 113 is the same as the inner diameter of the drum shaft insertion hole 96 of the right wall 91R.
  • the positioned portion 112 is formed in a substantially rectangular shape in a side view extending in the vertical direction so that the front wall slightly bulges from the front end edge toward the front side at the approximately vertical center of the left wall 91L. That is, the positioned portion 112 is disposed so as to be displaced by approximately 90 ° in the clockwise direction in the left side view with respect to the positioned portion 95 of the right wall 91R. Further, the vertical length of the positioned portion 112 is shorter than the vertical length of the receiving portion 65 of the left wall 54 ⁇ / b> L of the base frame 52.
  • the positioned portion 112 projects upstream in the counterclockwise direction in the right side view relative to the positioned portion 95 in the right wall 91R when projected in the left-right direction (that is, in the clockwise direction in the left side view). It is arranged so as to be shifted by approximately 90 ° (upstream side) (see FIG. 9).
  • the upper wall 92 is formed in a substantially rectangular tube shape that extends in the left-right direction and is opened toward the lower side so as to be installed between the upper ends of the side walls 91.
  • the scorotron charger 22 is supported inside the upper wall 92.
  • the upper wall 92 is formed with a ventilation opening 110 and a wire cleaner engaging portion insertion hole 114.
  • the ventilation opening 110 is formed in a substantially linear shape extending in the left-right direction along the charging wire 23 (FIG. 1) of the scorotron charger 22 at the upper end portion of the upper wall 92.
  • the wire cleaner engaging portion insertion hole 114 is formed at the left end portion of the upper wall 92 at the boundary portion with the left wall 91L.
  • the wire cleaner engaging portion insertion hole 114 is formed in a substantially rectangular shape in a plan view that is long in the front-rear direction so as to penetrate the upper wall 92 in the up-down direction.
  • the upper wall 92 supports the wire cleaner 115.
  • the wire cleaner 115 is supported at the upper end portion of the upper wall 92 so as to be slidable in the left-right direction.
  • the wire cleaner 115 is formed in a flat plate shape having a substantially rectangular shape in plan view. Note that the wire cleaner 115 is engaged with the charging wire 23 through the ventilation opening 110, and wipes dirt on the charging wire 23 at the engaging portion. Further, the wire cleaner 115 includes a locked portion 116.
  • the locked portion 116 is formed in a substantially prismatic shape protruding from the left surface of the wire cleaner 115 to the left side.
  • the vertical dimension and the longitudinal dimension of the locked portion 116 are shorter than the vertical dimension and the longitudinal dimension of the locking hole 68 (see FIG. 3) of the base frame 52.
  • the rear wall 93 continuously extends from the rear end portion of the upper wall 92 to the lower rear side, and is formed in a substantially flat plate shape that is long in the left-right direction so as to be installed between the rear end portions of the side walls 91. .
  • a paper discharge opening 121 and a covering portion 122 are formed in the rear wall 93.
  • the paper discharge opening 121 is formed in a substantially rectangular shape when viewed from the rear in the left-right direction so as to be cut out from the rear lower end of the rear wall 93 toward the front upper side.
  • the paper discharge opening 121 is formed at the center in the left-right direction of the rear wall 93 so as to correspond to the portion between the two transfer roller bearing support portions 71 of the transfer roller support portion 70 (see FIG. 3) of the base frame 52.
  • the length of the paper discharge opening 121 in the left-right direction is substantially the same as the length in the left-right direction of the portion between the transfer roller bearing support portions 71 of the transfer roller support portion 70 (see FIG. 3).
  • the paper discharge opening 121 is used for discharging the paper S that has passed between the photosensitive drum 20 and the transfer roller 21.
  • the covering portion 122 is installed in the rear lower end portion of the paper discharge opening 121 so as to close the rear lower end portion of the paper discharge opening 121.
  • the covering part 122 is formed in a substantially rectangular flat plate shape extending in the left-right direction in plan view.
  • the length of the covering portion 122 in the left-right direction is substantially the same as the length in the left-right direction of the portion between the transfer roller bearing support portions 71 of the transfer roller support portion 70 (see FIG. 3).
  • a contact portion 125, a plurality of (three) fitting holes 123, and an engaging claw 124 are formed at the rear end portion of the covering portion 122.
  • the contact portion 125 is formed as a protrusion that protrudes downward from the rear end edge of the covering portion 122 and extends in the left-right direction.
  • the plurality of fitting holes 123 are arranged in parallel at equal intervals in the left-right direction at approximately the center in the left-right direction of the covering portion 122.
  • the fitting hole 123 is formed in a substantially rectangular shape in plan view.
  • the engaging claw 124 is formed in a substantially bowl shape that protrudes downward from the lower surface of the covering portion 122 at the substantially center in the left-right direction of the covering portion 122 and bends forward at the lower end portion thereof.
  • (3) Transfer Roller and Photosensitive Drum As shown in FIGS. 3 and 7, the transfer roller 21 and the photosensitive drum 20 are supported on the drum cartridge 18.
  • the transfer roller 21 includes a transfer roller shaft 86, a roller body 85, a transfer roller bearing 87, and a transfer roller electrode 88.
  • the roller body 85 is disposed between the two transfer roller bearing support portions 71.
  • the roller body 85 is formed in a substantially cylindrical shape extending in the left-right direction from a conductive soft resin (for example, rubber).
  • the inner diameter of the roller body 85 is substantially the same as the outer diameter of the transfer roller shaft 86.
  • the transfer roller shaft 86 is inserted into the roller body 85 so as not to be relatively rotatable.
  • the transfer roller shaft 86 is formed in a substantially cylindrical shape extending in the left-right direction from the metal.
  • the transfer roller shaft 86 is longer in the left-right direction than the roller body 85, and both left and right end portions protrude from the roller body 85.
  • the left and right end portions of the transfer roller shaft 86 protrude into the corresponding transfer roller bearing support portion 71 through the guide openings 73 of the corresponding transfer roller bearing support portion 71, respectively.
  • the transfer roller shaft 86 is supported in the guide opening 73 so as to be relatively rotatable, and can move in the extending direction of the guide opening 73 (X direction in FIG. 10).
  • the transfer roller bearing 87 is provided at the left end portion of the transfer roller shaft 86.
  • the transfer roller bearing 87 is made of an insulating hard resin and has a substantially cylindrical shape extending in the left-right direction.
  • the inner diameter of the transfer roller bearing 87 is slightly larger (substantially the same diameter) than the outer diameter of the transfer roller shaft 86.
  • the transfer roller bearing 87 is externally fitted to the transfer roller shaft 86 so as to be rotatable relative to the transfer roller bearing support portion 71 on the left side (fitted from the outside in the radial direction of the transfer roller shaft 86).
  • the transfer roller electrode 88 is provided at the right end of the transfer roller shaft 86.
  • the transfer roller electrode 88 is formed in a semi-cylindrical shape extending from the conductive hard resin in the left-right direction and opened toward the front side.
  • the inner diameter of the transfer roller electrode 88 is slightly larger than the outer diameter of the transfer roller shaft 86 (substantially the same diameter).
  • the transfer roller electrode 88 is externally fitted (fitted from the outside in the radial direction of the transfer roller shaft 86) so as to be relatively rotatable from the rear side with respect to the transfer roller shaft 86 in the right transfer roller bearing support portion 71. .
  • the photosensitive drum 20 includes a drum body 81, a flange member 82, a drum gear 83 as an example of a passive member, and a drum shaft 80.
  • the drum body 81 is disposed between the facing portion 59 of the right wall 54R and the facing portion 64 of the left wall 54L on the front side of the transfer roller 21.
  • the drum body 81 is formed in a substantially cylindrical shape extending in the left-right direction.
  • the drum body 81 includes a metal base tube formed in a substantially cylindrical shape extending in the left-right direction, and a resin photosensitive layer that covers the surface of the base tube.
  • the flange member 82 is fitted to the right end portion of the drum main body 81 so as not to be relatively rotatable.
  • the flange member 82 is formed in a substantially cylindrical shape extending in the left-right direction. Further, an insertion hole (not shown) through which the drum shaft 80 is inserted is formed through the flange member 82 in the central portion in the radial direction.
  • the drum gear 83 is fitted to the left end of the drum body 81 so as not to rotate relative to the left wall 54L of the base frame 52 and the left end of the transfer roller support 70 (see FIG. 4). ing.
  • the drum gear 83 is formed in a substantially cylindrical shape extending in the left-right direction, and has gear teeth on its peripheral surface. Further, the drum gear 83 is formed with a through hole (not shown) through which the drum shaft 80 is inserted in the central portion in the radial direction. Further, the rear lower end portion of the drum gear 83 is exposed to the rear lower side through the drum gear exposure opening 72 so as to be exposed from the drum gear exposure portion 69 of the left wall 54L in the left side view (see FIGS. 8 and 8). (See FIG. 10).
  • the drum shaft 80 is inserted into the drum main body 81 along the central axis A of the photosensitive drum 20.
  • the drum shaft 80 is made of metal and has a substantially cylindrical shape extending in the left-right direction.
  • the drum shaft 80 is longer than the drum body 81 in the left-right direction.
  • the right end portion of the drum shaft 80 is rotatably inserted into the drum shaft insertion hole 62 of the right wall 54R of the base frame 52 and the drum shaft insertion hole 96 (see FIG. 9) of the right wall 91R of the cover frame 53. .
  • the left end of the drum shaft 80 is rotatably inserted into the drum shaft insertion hole 58 of the left wall 54L of the base frame 52 and the drum shaft insertion hole 113 (see FIG.
  • a cover frame 53 is combined from above so that the rear end portion of the base frame 52 covers the transfer roller 21 and the photosensitive drum 20.
  • the front end (lower end portion) of the engaging claw 124 of the cover frame 53 is loosely fitted in the locking recess 78 of the base frame 52, and the contact portion 125 of the cover frame 53 is transferred to the base frame 52.
  • the roller support part 70 is brought into contact with the upper surface of the rear end part.
  • the fitting convex portion 94 of the right wall 91R of the cover frame 53 is fitted into the fitting concave portion 60 of the right wall 54R of the base frame 52, and the fitting convex portion 111 of the left wall 91L of the cover frame 53 is used as the base. It fits in the fitting recess 63 of the left wall 54L of the frame 52.
  • the wire cleaner 115 is arranged in the middle of the cover frame 53 in the left-right direction.
  • the fitting protrusions 77 of the base frame 52 are loosely fitted into the corresponding fitting holes 123 of the cover frame 53, respectively. Further, the wire cleaner engaging portion 67 of the base frame 52 is inserted into the wire cleaner engaging portion insertion hole 114 of the cover frame 53.
  • the drum shaft insertion hole 96 of the right wall 91R of the cover frame 53 is opposed to the drum shaft insertion hole 62 of the right wall 54R of the base frame 52.
  • the drum shaft insertion hole 113 in the left wall 91L of the cover frame 53 is opposed to the drum shaft insertion hole 58 in the left wall 54L of the base frame 52.
  • the positioned portion 95 of the right wall 91R of the cover frame 53 is disposed opposite to the upper side of the receiving portion 61 of the right wall 54R of the base frame 52. Further, the positioned portion 112 of the left wall 91L of the cover frame 53 is disposed to face the front side of the receiving portion 65 of the left wall 54L of the base frame 52.
  • the wire cleaner 115 is disposed at the left end portion of the cover frame 53, thereby locking the locked portion 116 of the wire cleaner 115 in the locking hole 68 of the wire cleaner locking portion 67.
  • the drum shaft 80 is attached to the flange member 82, the drum gear 83, and the drum main body 81 through the drum shaft insertion holes (58, 62, 96, 113) of the base frame 52 and the cover frame 53. Is inserted.
  • the photosensitive drum 20 is rotatably supported by the base frame 52 and the cover frame 53 at both ends in the left-right direction of the drum shaft 80. Further, the base frame 52 and the cover frame 53 are integrally connected via a drum shaft 80.
  • the developing cartridge 19 is mounted on the drum cartridge 18 on the front side of the photosensitive drum 20 (part defined by the lower wall 55, the front wall 56, and the front side portions of the right wall 54R and the left wall 54L).
  • the 3. Mounting of Process Cartridge on Main Body Casing (1) Operation of Mounting Process Cartridge on Main Body Casing To mount drum cartridge 18 (that is, process cartridge 15) with developing cartridge 19 mounted on main body casing 2, first, FIG. As shown above, the top cover 7 of the main casing 2 is placed in the open position.
  • the process cartridge 15 is pushed rearward and downward along the guide portion 37, and then rotated counterclockwise as viewed from the right side with the drum shaft 80 of the photosensitive drum 20 as a fulcrum.
  • the main body side grid electrode (not shown) in the main body casing 2 moves relative to the grid electrode 98 as the process cartridge 15 rotates. While being abutted from the rear side, a body-side wire electrode (not shown) in the body casing 2 is abutted against the wire electrode 97 from below.
  • the main body side grid electrode (not shown) and the grid electrode 98 are electrically connected. Further, the main body side wire electrode (not shown) and the wire electrode 97 are electrically connected. Electric power is supplied to the grid electrode 98 or the wire electrode 97 from a power source (not shown) in the main body casing 2 via the main body side grid electrode (not shown) or the main body side wire electrode (not shown). .
  • the drum shaft 80 of the photosensitive drum 20 is disposed in the rear end portion of the guide portion 37, and the front end portion of the process cartridge 15 is disposed below the emission locus of the laser beam L. Then, the mounting of the process cartridge 15 on the main casing 2 is completed.
  • the transfer roller 21 is pressed to the front side toward the photosensitive drum 20 by the urging force of the urging member 131.
  • the receiving portion 65 of the left wall 54L of the base frame 52 is from the front side (downstream side in the pressure contact direction X of the transfer roller 21 to the photosensitive drum 20).
  • the positioning portion 112 of the left wall 54L of the cover frame 53 is received.
  • the photosensitive drum 20 When a driving force is input to the drum gear 83 via a driving gear (not shown), the photosensitive drum 20 is rotated clockwise as viewed from the left side by the driving force (see the arrow in FIG. 10).
  • the receiving portion 65 of the left wall 54L of the base frame 52 receives the positioned portion 112 of the left wall 54L of the cover frame 53 from the downstream side in the rotation direction of the photosensitive drum 20.
  • the transfer roller 21 is rotated counterclockwise as viewed from the left side, following the rotation of the photosensitive drum 20. Specifically, the transfer roller 21 is not provided with a gear or the like, and the transfer roller 21 rotates due to friction generated by pressure contact between the peripheral surface of the transfer roller 21 and the peripheral surface of the photosensitive drum 20. 4). Operation and Effect (1) According to the drum cartridge 18, as shown in FIGS. 9 and 10, the cover frame 53 is located at a position shifted by approximately 90 ° from each other in the rotation direction of the photosensitive drum 20 (clockwise as viewed from the left side).
  • the positioned portions (95, 112) on the left and right sides of the base frame 52 can be positioned with respect to the receiving portions (61, 65) on the left and right sides of the base frame 52, respectively.
  • the receiving portion 61 and the receiving portion 65 are shifted from each other by approximately 90 ° in the rotational direction of the photosensitive drum 20 when projected in the left-right direction (axial direction).
  • the cover frame 53 when the cover frame 53 is unintentionally distorted such as warping or twisting, the cover frame 53 can be positioned with respect to the base frame 52 in the front-rear direction and the vertical direction so as to correct the distortion. .
  • the receiving portion 65 of the left wall 54L of the base frame 52 is located on the front side of the positioned portion 112 of the left wall 54L of the cover frame 53 (transfer roller). 21 on the downstream side in the pressure contact direction X to the photosensitive drum 20.
  • the positioning portion 112 of the left wall 54L of the cover frame 53 can be positioned on the receiving portion 65 of the left wall 54L of the base frame 52 using the pressure contact force of the transfer roller 21 to the photosensitive drum 20.
  • the left end portion of the cover frame 53 can be reliably positioned with respect to the base frame 52.
  • the drum gear 83 to which the driving force from the main body casing 2 is input is provided at the left end portion of the photosensitive drum 20.
  • the positioning accuracy between the left end portion of the cover frame 53 and the base frame 52 is ensured, and then the driving force can be input to the left end portion of the photosensitive drum 20.
  • the fitting convex portion 94 of the right wall 91R of the cover frame 53 is formed in a substantially semicircular shape when viewed from the side, In the drum shaft insertion hole 96, the photosensitive drum 20 is rotatably supported.
  • the photosensitive drum 20 can be rotatably supported by the fitting convex portion 94 of the right wall 91R of the cover frame 53.
  • 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 may be configured as an integral 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.
  • 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 belt or the like can also be applied as the image carrier.
  • 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, a film type transfer device, or a non-contact type such as a corotron type is used.
  • a transfer member or the like 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.
  • drum cartridge 20 photosensitive drum 21 transfer roller 52 base frame 53 cover frame 61 receiving part 65 receiving part 83 drum gear 95 positioning part 111 fitting convex part 112 positioning part

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

Abstract

La présente invention concerne une cartouche qui permet de disposer avec précision un premier cadre sur un second cadre, même si une déformation s'est produite dans le premier cadre. Dans une cartouche à tambour (18) comportant un tambour photosensible (20), un cadre de base (52) situé en regard de la partie inférieure du tambour photosensible (20) et un cadre de protection (53) situé en regard de la partie supérieure dudit tambour photosensible (20) se trouvent à des emplacements décalés d'environ 90° l'un par rapport à l'autre dans le sens de rotation du tambour photosensible (20).
PCT/JP2012/080834 2012-07-09 2012-11-29 Cartouche WO2014010122A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201280074639.3A CN104583878B (zh) 2012-07-09 2012-11-29 盒

Applications Claiming Priority (2)

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JP2012154143A JP6011085B2 (ja) 2012-07-09 2012-07-09 カートリッジ
JP2012-154143 2012-07-09

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WO2014010122A1 true WO2014010122A1 (fr) 2014-01-16

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PCT/JP2012/080834 WO2014010122A1 (fr) 2012-07-09 2012-11-29 Cartouche

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WO (1) WO2014010122A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN206573863U (zh) * 2016-09-21 2017-10-20 纳思达股份有限公司 一种处理盒

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001272838A (ja) * 2000-03-24 2001-10-05 Seiko Epson Corp 画像形成装置
JP2002023441A (ja) * 2000-07-13 2002-01-23 Matsushita Electric Ind Co Ltd 筐体連結装置
JP2006308802A (ja) * 2005-04-27 2006-11-09 Brother Ind Ltd 像担持体カートリッジ、プロセスカートリッジおよび画像形成装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000047450A (ja) * 1998-07-29 2000-02-18 Canon Inc 画像形成装置
JP2009180987A (ja) * 2008-01-31 2009-08-13 Brother Ind Ltd ドラムカートリッジ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001272838A (ja) * 2000-03-24 2001-10-05 Seiko Epson Corp 画像形成装置
JP2002023441A (ja) * 2000-07-13 2002-01-23 Matsushita Electric Ind Co Ltd 筐体連結装置
JP2006308802A (ja) * 2005-04-27 2006-11-09 Brother Ind Ltd 像担持体カートリッジ、プロセスカートリッジおよび画像形成装置

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CN104583878A (zh) 2015-04-29
JP2014016491A (ja) 2014-01-30
CN104583878B (zh) 2019-02-05

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