EP0312230A3 - An image forming apparatus - Google Patents

An image forming apparatus Download PDF

Info

Publication number
EP0312230A3
EP0312230A3 EP88309163A EP88309163A EP0312230A3 EP 0312230 A3 EP0312230 A3 EP 0312230A3 EP 88309163 A EP88309163 A EP 88309163A EP 88309163 A EP88309163 A EP 88309163A EP 0312230 A3 EP0312230 A3 EP 0312230A3
Authority
EP
European Patent Office
Prior art keywords
image forming
forming apparatus
image
forming
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
EP88309163A
Other versions
EP0312230A2 (en
EP0312230B1 (en
Inventor
Hiroyuki Adachi
Noribumi Canon-Ryo Koitabashi
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 JP25129587A external-priority patent/JPH0193761A/en
Priority claimed from JP25129687A external-priority patent/JPH0193762A/en
Application filed by Canon Inc filed Critical Canon Inc
Publication of EP0312230A2 publication Critical patent/EP0312230A2/en
Publication of EP0312230A3 publication Critical patent/EP0312230A3/en
Application granted granted Critical
Publication of EP0312230B1 publication Critical patent/EP0312230B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03G21/1803—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
    • G03G15/0208—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus
    • G03G15/0216—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers
    • 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
    • G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
    • G03G21/0011—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using a blade; Details of cleaning blades, e.g. blade shape, layer forming
    • 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
    • G03G2221/1618—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the cleaning unit
    • 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
    • G03G2221/1669—Details about used materials
    • 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
    • G03G2221/1693—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for charging
    • 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
EP19880309163 1987-10-05 1988-10-03 An image forming apparatus Expired - Lifetime EP0312230B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP251295/87 1987-10-05
JP25129587A JPH0193761A (en) 1987-10-05 1987-10-05 Image forming device
JP251296/87 1987-10-05
JP25129687A JPH0193762A (en) 1987-10-05 1987-10-05 Image forming device

Publications (3)

Publication Number Publication Date
EP0312230A2 EP0312230A2 (en) 1989-04-19
EP0312230A3 true EP0312230A3 (en) 1989-10-11
EP0312230B1 EP0312230B1 (en) 1994-05-25

Family

ID=26540141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880309163 Expired - Lifetime EP0312230B1 (en) 1987-10-05 1988-10-03 An image forming apparatus

Country Status (3)

Country Link
EP (1) EP0312230B1 (en)
DE (1) DE3889708T2 (en)
FR (1) FR2621405B1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0693150B2 (en) * 1988-04-20 1994-11-16 キヤノン株式会社 Image forming device
JPH02141761A (en) * 1988-11-22 1990-05-31 Canon Inc Electrophotographic device
JP2633016B2 (en) * 1989-04-05 1997-07-23 キヤノン株式会社 Process cartridge and image forming apparatus
US5177534A (en) * 1989-12-04 1993-01-05 Canon Kabushiki Kaisha Image forming apparatus with contact-type charge means
JP2827137B2 (en) * 1989-12-05 1998-11-18 株式会社リコー Cleaner toner magazine and electrophotographic recording device
EP0439143A3 (en) * 1990-01-24 1992-12-09 Canon Kabushiki Kaisha Charging member featureing a cut edge, and charging device employing same for use in a detachable process unit in an image forming apparatus
US5321472A (en) * 1990-01-24 1994-06-14 Canon Kabushiki Kaisha Charging member with a bridging electrode structure and charging device using same in an image forming apparatus
DE69125406T2 (en) * 1990-01-24 1997-10-30 Canon Kk Charger
JP2767951B2 (en) * 1990-01-24 1998-06-25 キヤノン株式会社 Contact charging member
EP0515164A3 (en) * 1991-05-20 1993-11-03 Canon Kk Charger having charging blade, image forming apparatus having same and process cartridge having same
US5619311A (en) * 1993-05-31 1997-04-08 Ricoh Company, Ltd. Roller charging apparatus and image forming apparatus using the same
EP0691594B1 (en) * 1994-07-06 1999-10-06 Canon Kabushiki Kaisha Electrophotographic apparatus and image forming process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4387980A (en) * 1979-12-25 1983-06-14 Tokyo Shibaura Denki Kabushiki Kaisha Charging device for electronic copier
US4540268A (en) * 1983-04-25 1985-09-10 Canon Kabushiki Kaisha Process kit and image forming apparatus using such kit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879277A (en) * 1981-11-06 1983-05-13 Canon Inc Electrophotographing method
JPS60147756A (en) * 1984-01-13 1985-08-03 Toshiba Corp Charging device
JPS61140972A (en) * 1984-12-12 1986-06-28 Konishiroku Photo Ind Co Ltd Cleaning device
JP2519414B2 (en) * 1986-01-30 1996-07-31 三田工業株式会社 Electrophotographic equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4387980A (en) * 1979-12-25 1983-06-14 Tokyo Shibaura Denki Kabushiki Kaisha Charging device for electronic copier
US4540268A (en) * 1983-04-25 1985-09-10 Canon Kabushiki Kaisha Process kit and image forming apparatus using such kit

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 10, no. 338 (P-516)(2394) 15 November 1986; & JP-A-61 140 972 (KONSHIROKU PHOTO IND) 28-06-1986 *
PATENT ABSTRACTS OF JAPAN, vol. 12, no. 19 (P-657)(2866) 21 January 1988; & JP-A-62 175 781 (MITA) 01-08-1987 *
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 176 (P-214)(1321) 4 August 1983; & JP-A-58 079 277 (CANON) 13-05-1983 *
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 320 (P-413)(2043) 14 December 1985; & JP-A-60 147 756 (TOSHIBA) 03-08-1985 *

Also Published As

Publication number Publication date
FR2621405A1 (en) 1989-04-07
EP0312230A2 (en) 1989-04-19
DE3889708D1 (en) 1994-06-30
FR2621405B1 (en) 1990-08-31
DE3889708T2 (en) 1994-09-22
EP0312230B1 (en) 1994-05-25

Similar Documents

Publication Publication Date Title
EP0323226A3 (en) An image forming apparatus
EP0280542A3 (en) An image forming apparatus
EP0285139A3 (en) An image forming apparatus
EP0298506A3 (en) An image forming apparatus
EP0297911A3 (en) An image forming apparatus
EP0318838A3 (en) Image forming apparatus
EP0421806A3 (en) An image forming apparatus
EP0295901A3 (en) An image fixing apparatus
EP0282993A3 (en) Imaging apparatus
EP0333106A3 (en) Image forming apparatus
EP0298505A3 (en) An image forming apparatus
EP0322219A3 (en) Image forming apparatus
EP0415753A3 (en) An image forming apparatus
EP0372813A3 (en) Image forming apparatus
EP0298460A3 (en) Image forming apparatus
EP0301544A3 (en) An image forming apparatus
EP0565213A3 (en) An image forming apparatus
EP0386978A3 (en) An image forming apparatus
EP0341894A3 (en) Image forming apparatus
EP0336366A3 (en) An image forming apparatus
EP0352102A3 (en) An image forming apparatus
EP0357086A3 (en) Image forming apparatus
EP0342704A3 (en) Image forming apparatus
EP0301459A3 (en) Image forming apparatus
EP0316935A3 (en) Image forming apparatus

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE GB IT

17P Request for examination filed

Effective date: 19900228

17Q First examination report despatched

Effective date: 19920430

ITTA It: last paid annual fee
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB IT

REF Corresponds to:

Ref document number: 3889708

Country of ref document: DE

Date of ref document: 19940630

ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20071031

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20071019

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20071005

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20081002

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20081002