JPH03103447U - - Google Patents

Info

Publication number
JPH03103447U
JPH03103447U JP1990020494U JP2049490U JPH03103447U JP H03103447 U JPH03103447 U JP H03103447U JP 1990020494 U JP1990020494 U JP 1990020494U JP 2049490 U JP2049490 U JP 2049490U JP H03103447 U JPH03103447 U JP H03103447U
Authority
JP
Japan
Prior art keywords
transfer
toner concentration
transfer paper
detection sensor
toner
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
JP1990020494U
Other languages
English (en)
Japanese (ja)
Other versions
JP2536713Y2 (ja
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 filed Critical
Priority to JP1990020494U priority Critical patent/JP2536713Y2/ja
Priority to US07/619,607 priority patent/US5124759A/en
Publication of JPH03103447U publication Critical patent/JPH03103447U/ja
Application granted granted Critical
Publication of JP2536713Y2 publication Critical patent/JP2536713Y2/ja
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
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/70—Detecting malfunctions relating to paper handling, e.g. jams
    • 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
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0849—Detection or control means for the developer concentration
    • G03G15/0855—Detection or control means for the developer concentration the concentration being measured by optical means
    • 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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5033—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor
    • G03G15/5041—Detecting a toner image, e.g. density, toner coverage, using a test patch

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Control Or Security For Electrophotography (AREA)
JP1990020494U 1989-11-29 1990-03-02 電子写真装置 Expired - Lifetime JP2536713Y2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1990020494U JP2536713Y2 (ja) 1989-11-29 1990-03-02 電子写真装置
US07/619,607 US5124759A (en) 1989-11-29 1990-11-29 Control method for detecting a paper jam using a toner density sensor

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1-137312 1989-11-29
JP13731289 1989-11-29
JP1990020494U JP2536713Y2 (ja) 1989-11-29 1990-03-02 電子写真装置

Publications (2)

Publication Number Publication Date
JPH03103447U true JPH03103447U (US07413550-20080819-C00001.png) 1991-10-28
JP2536713Y2 JP2536713Y2 (ja) 1997-05-28

Family

ID=26357456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990020494U Expired - Lifetime JP2536713Y2 (ja) 1989-11-29 1990-03-02 電子写真装置

Country Status (2)

Country Link
US (1) US5124759A (US07413550-20080819-C00001.png)
JP (1) JP2536713Y2 (US07413550-20080819-C00001.png)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237378A (en) * 1992-05-26 1993-08-17 Xerox Corporation Copier/printer employing a roll media feed apparatus and dual functions sensors
US5689764A (en) * 1995-05-24 1997-11-18 Ricoh Company, Ltd. Image forming apparatus and device for driving a contact type charging member
US6576177B2 (en) 1997-12-29 2003-06-10 Ricoh Company, Ltd. System and method for molding a plastic gear suppressing shrinkage
KR100371598B1 (ko) 1999-10-29 2003-02-11 가부시키가이샤 리코 회전체 구동 장치 및 화상 형성 장치
JP2002193497A (ja) 2000-10-20 2002-07-10 Ricoh Co Ltd 給紙装置及びその給紙装置を備えた画像形成装置
JP4382310B2 (ja) 2001-08-17 2009-12-09 株式会社リコー 画像形成装置及びその制御方法
US6834850B2 (en) 2001-10-26 2004-12-28 Ricoh Company, Ltd. Percussive noises supressing sheet feeding method and apparatus
CN1206113C (zh) * 2002-04-17 2005-06-15 株式会社理光 纸输送装置及设有该纸输送装置的图像形成装置
JP3825759B2 (ja) * 2002-06-17 2006-09-27 株式会社リコー 粉体回収装置、現像装置、画像形成装置、および粉体回収方法
JP4076427B2 (ja) * 2002-10-30 2008-04-16 株式会社リコー 画像形成装置
JP2004157595A (ja) * 2002-11-01 2004-06-03 Ricoh Co Ltd 画像処理装置およびそのジョブ結果通知方法
JP2004220002A (ja) * 2002-12-27 2004-08-05 Ricoh Co Ltd 両面画像形成装置及び方法
US7016629B2 (en) * 2003-04-17 2006-03-21 Ricoh Company, Ltd. Image forming apparatus with discharging unit of increased capacity
EP1482385A3 (en) * 2003-05-20 2005-04-06 Ricoh Company, Ltd. Image forming apparatus
JP4444719B2 (ja) * 2003-07-07 2010-03-31 株式会社リコー 画像形成装置
JP4102794B2 (ja) 2003-09-19 2008-06-18 株式会社リコー 画像形成装置、画像処理装置、画像形成方法、およびその方法をコンピュータに実行させるプログラム
JP2005249832A (ja) * 2004-03-01 2005-09-15 Canon Inc 画像形成装置
US7418222B2 (en) * 2004-07-28 2008-08-26 Xerox Corporation Photoreceptor module
KR20060117065A (ko) * 2005-05-12 2006-11-16 삼성전자주식회사 토너 절약모드를 이용한 인쇄용지 걸림 제거 방법 및화상형성 장치
US8244168B2 (en) * 2007-06-25 2012-08-14 Ricoh Company, Ltd. Image forming apparatus with movable transfer device
JP5822131B2 (ja) * 2011-11-30 2015-11-24 株式会社リコー 処理手順報知装置及び画像形成装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5461938A (en) * 1977-10-27 1979-05-18 Konishiroku Photo Ind Co Ltd Copy concentration controller/paper clogging detector
JPS5660943U (US07413550-20080819-C00001.png) * 1979-10-15 1981-05-23
JPS595261A (ja) * 1982-06-30 1984-01-12 Minolta Camera Co Ltd 異常検出装置
JPS62127852A (ja) * 1985-11-29 1987-06-10 Mita Ind Co Ltd トナ−濃度および転写紙巻付き検出装置
JPS63212676A (ja) * 1987-02-28 1988-09-05 Ricoh Co Ltd 複写制御装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54143144A (en) * 1978-04-14 1979-11-08 Konishiroku Photo Ind Co Ltd Image density detecting method and apparatus for zerographic copier
JPH0789250B2 (ja) * 1986-02-04 1995-09-27 ミノルタ株式会社 画像記録装置
JPS63206785A (ja) * 1987-02-24 1988-08-26 Konica Corp トナ−濃度制御装置
JP2667440B2 (ja) * 1988-05-18 1997-10-27 株式会社東芝 画像形成装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5461938A (en) * 1977-10-27 1979-05-18 Konishiroku Photo Ind Co Ltd Copy concentration controller/paper clogging detector
JPS5660943U (US07413550-20080819-C00001.png) * 1979-10-15 1981-05-23
JPS595261A (ja) * 1982-06-30 1984-01-12 Minolta Camera Co Ltd 異常検出装置
JPS62127852A (ja) * 1985-11-29 1987-06-10 Mita Ind Co Ltd トナ−濃度および転写紙巻付き検出装置
JPS63212676A (ja) * 1987-02-28 1988-09-05 Ricoh Co Ltd 複写制御装置

Also Published As

Publication number Publication date
JP2536713Y2 (ja) 1997-05-28
US5124759A (en) 1992-06-23

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term