CA2088237A1 - Helical gears for a process cartridge - Google Patents

Helical gears for a process cartridge

Info

Publication number
CA2088237A1
CA2088237A1 CA002088237A CA2088237A CA2088237A1 CA 2088237 A1 CA2088237 A1 CA 2088237A1 CA 002088237 A CA002088237 A CA 002088237A CA 2088237 A CA2088237 A CA 2088237A CA 2088237 A1 CA2088237 A1 CA 2088237A1
Authority
CA
Canada
Prior art keywords
gear
photosensitive drum
cylindrical member
image forming
forming apparatus
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002088237A
Other languages
French (fr)
Other versions
CA2088237C (en
Inventor
Atsushi Nishibata
Morikazu Mizutani
Kazumi Sekine
Tadayuki Tsuda
Isao Ikemoto
Kazushi Watanabe
Yoshikazu Sasago
Yasushi Shimizu
Shinya Noda
Kazunori Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
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
Priority claimed from JP4194661A external-priority patent/JPH0619230A/en
Priority claimed from JP1785193A external-priority patent/JP3599354B2/en
Application filed by Canon Inc filed Critical Canon Inc
Publication of CA2088237A1 publication Critical patent/CA2088237A1/en
Application granted granted Critical
Publication of CA2088237C publication Critical patent/CA2088237C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • G03G21/1839—Means for handling the process cartridge in the apparatus body
    • G03G21/1857—Means for handling the process cartridge in the apparatus body for transmitting mechanical drive power to the process cartridge, drive mechanisms, gears, couplings, braking mechanisms
    • 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
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • 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
    • G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
    • G03G15/751—Details relating to xerographic drum, band or plate, e.g. replacing, testing relating to drum
    • 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
    • G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
    • G03G15/757—Drive mechanisms for photosensitive medium, e.g. gears
    • 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
    • G03G21/1604—Arrangement or disposition of the entire apparatus
    • G03G21/1623—Means to access the interior of the apparatus
    • G03G21/1633—Means to access the interior of the apparatus using doors or covers
    • 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
    • G03G21/1642—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements for connecting the different parts of the apparatus
    • G03G21/1647—Mechanical connection means
    • 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
    • G03G21/1661—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus
    • G03G21/1666—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus for the exposure unit
    • 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
    • G03G21/1839—Means for handling the process cartridge in the apparatus body
    • G03G21/1857—Means for handling the process cartridge in the apparatus body for transmitting mechanical drive power to the process cartridge, drive mechanisms, gears, couplings, braking mechanisms
    • G03G21/1864—Means for handling the process cartridge in the apparatus body for transmitting mechanical drive power to the process cartridge, drive mechanisms, gears, couplings, braking mechanisms associated with a positioning function
    • 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
    • G03G21/1839—Means for handling the process cartridge in the apparatus body
    • G03G21/1867—Means for handling the process cartridge in the apparatus body for electrically connecting the process cartridge to the apparatus, electrical connectors, power supply
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/1606—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the photosensitive element
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/1651—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts
    • G03G2221/1657—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts transmitting mechanical drive power
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/18—Cartridge systems
    • G03G2221/183—Process cartridge
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/18—Cartridge systems
    • G03G2221/183—Process cartridge
    • G03G2221/1853—Process cartridge having a submodular arrangement

Abstract

A photosensitive drum for use in an image forming apparatus has a cylindrical member with a photosensitive layer thereon; a first gear provided at one end of said cylindrical member in an axial direction thereof; and a helical gear as a second gear provided at said one end of said cylindrical member adjacent to and outside of said first gear in the axial direction of said cylindrical member, said helical gear having a diameter larger than a diameter of said first gear. The helical gear meshes with a drive gear provided in a main body of the image forming apparatus to receive the drive force of a motor provided in the main body for rotating said photosensitive drum when said photosensitive drum is used for the image forming apparatus, and said first gear meshes with a gear of the transfer roller provided in the main body to transmit the drive force of said photosensitive drum to the transfer roller. The first gear and said helical gear are integrally formed as a gear portion, said integrally-formed gear portion comprising a through-bore portion having a first portion, and a second portion, said first portion being disposed outside of said second portion in the axial direction of said cylindrical member and having an inner diameter that is smaller than an inner diameter of said second portion, said first portion being fitted on a drum shaft when said photosensitive drum is mounted in the image forming apparatus.
The drive force of the motor acts on a root portion of the shaft which supports one end of the photosensitive drum. Therefore, the inclination of the shaft can be reduced such that, when the photosensitive drum is rotated, it does not vibrate with respect to the shaft, allowing the drum to be smoothly rotated with high accuracy.
CA002088237A 1992-06-30 1993-01-27 Helical gears for a process cartridge Expired - Fee Related CA2088237C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP4194661A JPH0619230A (en) 1992-06-30 1992-06-30 Process cartridge and image forming device
JP4-194661 1992-06-30
JP4-217421 1992-07-24
JP21742192 1992-07-24
JP1785193A JP3599354B2 (en) 1992-07-24 1993-01-11 Process cartridge and image forming apparatus
JP5-017851 1993-01-11

Publications (2)

Publication Number Publication Date
CA2088237A1 true CA2088237A1 (en) 1993-12-31
CA2088237C CA2088237C (en) 2001-06-05

Family

ID=27281991

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002088237A Expired - Fee Related CA2088237C (en) 1992-06-30 1993-01-27 Helical gears for a process cartridge

Country Status (8)

Country Link
US (2) US5602623A (en)
EP (2) EP0586033B1 (en)
KR (1) KR0132555B1 (en)
CN (1) CN1058794C (en)
CA (1) CA2088237C (en)
DE (2) DE69330145T2 (en)
HK (1) HK1005105A1 (en)
MX (1) MX9300509A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9957667B2 (en) 2013-11-14 2018-05-01 Gpcp Ip Holdings Llc Absorbent sheets having high absorbency and high caliper, and methods of making soft, absorbent sheets
CN111433684A (en) * 2017-12-13 2020-07-17 佳能株式会社 Cartridge and image forming apparatus
CN111433684B (en) * 2017-12-13 2022-12-13 佳能株式会社 Cartridge and image forming apparatus

Also Published As

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DE69330145D1 (en) 2001-05-17
EP0813119A1 (en) 1997-12-17
MX9300509A (en) 1994-07-29
DE69317607T2 (en) 1998-08-20
EP0586033A2 (en) 1994-03-09
CN1083228A (en) 1994-03-02
EP0586033B1 (en) 1998-03-25
KR0132555B1 (en) 1998-11-16
EP0813119B1 (en) 2001-04-11
DE69330145T2 (en) 2001-08-30
KR940006009A (en) 1994-03-22
CA2088237C (en) 2001-06-05
DE69317607D1 (en) 1998-04-30
US5926672A (en) 1999-07-20
EP0586033A3 (en) 1994-04-06
US5602623A (en) 1997-02-11
HK1005105A1 (en) 1998-12-24
CN1058794C (en) 2000-11-22

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