WO1990014618A1 - Image forming apparatus - Google Patents

Image forming apparatus Download PDF

Info

Publication number
WO1990014618A1
WO1990014618A1 PCT/JP1990/000619 JP9000619W WO9014618A1 WO 1990014618 A1 WO1990014618 A1 WO 1990014618A1 JP 9000619 W JP9000619 W JP 9000619W WO 9014618 A1 WO9014618 A1 WO 9014618A1
Authority
WO
WIPO (PCT)
Prior art keywords
bevel gear
developing device
bevel
photosensitive drum
image forming
Prior art date
Application number
PCT/JP1990/000619
Other languages
French (fr)
Japanese (ja)
Inventor
Tetsuya Fujimoto
Hiroshi Kishimoto
Tomohiro Nonomura
Original Assignee
Fujitsu Limited
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 Fujitsu Limited filed Critical Fujitsu Limited
Priority to DE69016751T priority Critical patent/DE69016751T2/en
Priority to EP90907452A priority patent/EP0429657B1/en
Publication of WO1990014618A1 publication Critical patent/WO1990014618A1/en

Links

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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0896—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894
    • 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
    • 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
    • G03G2221/1654—Locks and means for positioning or alignment
    • 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

Abstract

A novel transmission gear mechanism for driving a developing device in an image forming apparatus of such a type that the developing device is brought close to or apart from a photosensitive drum while being interlocked with opening/closing action of a cover. This mechanism is composed of a first bevel gear (71) fitted on a revolving shaft (624) on the side of the photosensitive drum unit connected to the driving motor, a second bevel (72) to constantly mesh with the first bevel gear, a third bevel gear (81) fitted on the revolving shaft (635) on the side of the developing device unit, a fourth bevel gear (82) to constantly mesh with the third bevel gear, and rotative connecting means (91) for connecting the second and fourth bevel gears to each other. The rotative connecting means is provided with a connecting structure to transmit the rotation of the second bevel gear (72) to the fourth bevel gear (82) when the developing device approaches the photosensitive drum and to permit displacement of the fourth bevel gear (82) when the developing device performs the approaching/departing action.
PCT/JP1990/000619 1989-05-19 1990-05-16 Image forming apparatus WO1990014618A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE69016751T DE69016751T2 (en) 1989-05-19 1990-05-16 IMAGE FORMING ARRANGEMENT.
EP90907452A EP0429657B1 (en) 1989-05-19 1990-05-16 Image forming apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1/127197 1989-05-19
JP12719789 1989-05-19

Publications (1)

Publication Number Publication Date
WO1990014618A1 true WO1990014618A1 (en) 1990-11-29

Family

ID=14954104

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1990/000619 WO1990014618A1 (en) 1989-05-19 1990-05-16 Image forming apparatus

Country Status (4)

Country Link
EP (1) EP0429657B1 (en)
CA (1) CA2028150C (en)
DE (1) DE69016751T2 (en)
WO (1) WO1990014618A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62280866A (en) * 1986-05-30 1987-12-05 Canon Inc Image forming device
JPH01120458A (en) * 1987-10-31 1989-05-12 Canon Inc Power transmission

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58178038A (en) * 1982-04-13 1983-10-18 Mitsui Eng & Shipbuild Co Ltd High-speed bevel gear transmission apparatus
JPS5987464A (en) * 1982-11-11 1984-05-21 Canon Inc Process cartridge
JPS6415765A (en) * 1987-07-10 1989-01-19 Canon Kk Image forming device
JPH0750372B2 (en) * 1987-10-05 1995-05-31 富士通株式会社 Image forming device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62280866A (en) * 1986-05-30 1987-12-05 Canon Inc Image forming device
JPH01120458A (en) * 1987-10-31 1989-05-12 Canon Inc Power transmission

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0429657A4 *

Also Published As

Publication number Publication date
DE69016751T2 (en) 1995-06-14
CA2028150C (en) 1997-12-02
CA2028150A1 (en) 1990-11-20
DE69016751D1 (en) 1995-03-23
EP0429657A4 (en) 1993-01-20
EP0429657B1 (en) 1995-02-08
EP0429657A1 (en) 1991-06-05

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