JP4939164B2 - 画像形成装置 - Google Patents

画像形成装置 Download PDF

Info

Publication number
JP4939164B2
JP4939164B2 JP2006284997A JP2006284997A JP4939164B2 JP 4939164 B2 JP4939164 B2 JP 4939164B2 JP 2006284997 A JP2006284997 A JP 2006284997A JP 2006284997 A JP2006284997 A JP 2006284997A JP 4939164 B2 JP4939164 B2 JP 4939164B2
Authority
JP
Japan
Prior art keywords
transfer
charging
image
potential
photosensitive drum
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.)
Expired - Fee Related
Application number
JP2006284997A
Other languages
English (en)
Japanese (ja)
Other versions
JP2008102329A (ja
JP2008102329A5 (enExample
Inventor
順仁 内藤
貴之 並木
聡 居波
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
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2006284997A priority Critical patent/JP4939164B2/ja
Priority to US11/553,730 priority patent/US7444092B2/en
Publication of JP2008102329A publication Critical patent/JP2008102329A/ja
Publication of JP2008102329A5 publication Critical patent/JP2008102329A5/ja
Application granted granted Critical
Publication of JP4939164B2 publication Critical patent/JP4939164B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0266—Arrangements for controlling the amount of charge
    • 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
    • G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
    • G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
    • G03G15/163—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap
    • G03G15/1635—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap the field being produced by laying down an electrostatic charge behind the base or the recording member, e.g. by a corona device
    • G03G15/1645—Arrangements for controlling the amount of charge
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/02—Arrangements for laying down a uniform charge
    • G03G2215/021—Arrangements for laying down a uniform charge by contact, friction or induction
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/16—Transferring device, details
    • G03G2215/1604—Main transfer electrode
    • G03G2215/1614—Transfer roll

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
JP2006284997A 2006-10-19 2006-10-19 画像形成装置 Expired - Fee Related JP4939164B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2006284997A JP4939164B2 (ja) 2006-10-19 2006-10-19 画像形成装置
US11/553,730 US7444092B2 (en) 2006-10-19 2006-10-27 Image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006284997A JP4939164B2 (ja) 2006-10-19 2006-10-19 画像形成装置

Publications (3)

Publication Number Publication Date
JP2008102329A JP2008102329A (ja) 2008-05-01
JP2008102329A5 JP2008102329A5 (enExample) 2009-11-12
JP4939164B2 true JP4939164B2 (ja) 2012-05-23

Family

ID=39318059

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006284997A Expired - Fee Related JP4939164B2 (ja) 2006-10-19 2006-10-19 画像形成装置

Country Status (2)

Country Link
US (1) US7444092B2 (enExample)
JP (1) JP4939164B2 (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3814628B2 (ja) * 2004-05-20 2006-08-30 キヤノン株式会社 画像形成装置
JP5121216B2 (ja) * 2006-12-05 2013-01-16 キヤノン株式会社 画像形成装置
JP5473501B2 (ja) * 2009-09-08 2014-04-16 キヤノン株式会社 画像形成装置
JP5587147B2 (ja) * 2010-01-07 2014-09-10 理想科学工業株式会社 印刷装置
JP5464495B2 (ja) * 2010-07-29 2014-04-09 コニカミノルタ株式会社 画像形成装置
JP6008737B2 (ja) * 2012-12-26 2016-10-19 キヤノン株式会社 画像形成装置
JP6128871B2 (ja) * 2013-02-05 2017-05-17 キヤノン株式会社 画像形成装置
US10054877B2 (en) 2016-06-14 2018-08-21 Canon Kabushiki Kaisha Developing apparatus having varying magnetic flux density and image forming apparatus
JP7030467B2 (ja) 2017-09-29 2022-03-07 キヤノン株式会社 画像形成装置
WO2019064933A1 (ja) * 2017-09-29 2019-04-04 日立オートモティブシステムズ株式会社 物理量検出装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3131353B2 (ja) * 1995-01-23 2001-01-31 キヤノン株式会社 感光体寿命検知装置およびこれを備えた画像形成装置
EP0766146B1 (en) * 1995-09-28 2011-04-06 Canon Kabushiki Kaisha Image forming apparatus
JPH09101652A (ja) * 1995-10-06 1997-04-15 Nec Corp 帯電ローラ及びこれを用いた画像形成装置
JP3847875B2 (ja) 1997-01-14 2006-11-22 キヤノン株式会社 画像形成装置
JP3792902B2 (ja) * 1997-08-04 2006-07-05 キヤノン株式会社 画像形成装置
EP0908792B1 (en) * 1997-10-07 2004-05-19 Canon Kabushiki Kaisha Image forming apparatus
JP3780095B2 (ja) * 1998-04-24 2006-05-31 キヤノン株式会社 画像形成装置
JP2002328545A (ja) * 2001-05-01 2002-11-15 Canon Inc 画像形成装置
JP4047137B2 (ja) * 2002-11-08 2008-02-13 キヤノン株式会社 現像装置及びプロセスカートリッジ
JP2005070311A (ja) * 2003-08-22 2005-03-17 Canon Inc 画像形成装置
JP4585830B2 (ja) * 2004-10-08 2010-11-24 キヤノン株式会社 現像装置、プロセスカートリッジ及び画像形成装置
US7454149B2 (en) * 2004-10-20 2008-11-18 Canon Kabushiki Kaisha Image forming apparatus

Also Published As

Publication number Publication date
JP2008102329A (ja) 2008-05-01
US20080095550A1 (en) 2008-04-24
US7444092B2 (en) 2008-10-28

Similar Documents

Publication Publication Date Title
US6640063B2 (en) Image forming apparatus featuring first and second peak-to-peak charging voltages, respectively, corresponding to first and second image bearing member speeds and voltage frequencies
JP3814628B2 (ja) 画像形成装置
JP4298107B2 (ja) 画像形成装置
JP5546269B2 (ja) 画像形成装置
US9665032B2 (en) Image forming apparatus with exposure controlled in dependence on cumulative operating time and humidity
JP4994650B2 (ja) 帯電装置
JP4939164B2 (ja) 画像形成装置
JP5031343B2 (ja) 画像形成装置
JP2002162801A (ja) 画像形成装置
JP2006221048A (ja) 画像形成装置
JP2000293019A (ja) 画像形成装置
JP2017032777A (ja) 画像形成装置
JP4543989B2 (ja) 画像形成装置
JP2010102074A (ja) 画像形成装置
JP2018004917A (ja) 画像形成装置
JP2001296759A (ja) 画像形成装置
JP4763988B2 (ja) 画像形成装置
JP7115198B2 (ja) 画像形成装置
JP2012132948A (ja) 画像形成装置
JP2006138991A (ja) 画像形成装置
JP4631325B2 (ja) 画像濃度調整装置、及びこれを用いた画像形成装置
JP5328470B2 (ja) 画像形成装置
JP2002162795A (ja) 画像形成装置
JP2009003483A (ja) 画像形成装置
JP4581592B2 (ja) 液体現像装置及び画像形成装置

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090930

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090930

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20100201

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20100630

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110426

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110726

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110907

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120221

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120224

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150302

Year of fee payment: 3

R151 Written notification of patent or utility model registration

Ref document number: 4939164

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150302

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees