JPS5659277A - Destaticization device - Google Patents

Destaticization device

Info

Publication number
JPS5659277A
JPS5659277A JP13487379A JP13487379A JPS5659277A JP S5659277 A JPS5659277 A JP S5659277A JP 13487379 A JP13487379 A JP 13487379A JP 13487379 A JP13487379 A JP 13487379A JP S5659277 A JPS5659277 A JP S5659277A
Authority
JP
Japan
Prior art keywords
size
latent image
destaticization
recording paper
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
JP13487379A
Other languages
English (en)
Other versions
JPH0359437B2 (ja
Inventor
Shunji Kato
Hidefumi Nishitsuji
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP13487379A priority Critical patent/JPS5659277A/ja
Priority to US06/194,230 priority patent/US4384785A/en
Publication of JPS5659277A publication Critical patent/JPS5659277A/ja
Publication of JPH0359437B2 publication Critical patent/JPH0359437B2/ja
Granted 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
    • G03G15/04—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
    • G03G15/045—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 with means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas
    • G03G15/047—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 with means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas for discharging non-image areas
    • 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
    • G03G2215/04—Arrangements for exposing and producing an image
    • G03G2215/0429—Changing or enhancing the image
    • G03G2215/0431—Producing a clean non-image area, i.e. avoiding show-around effects
    • G03G2215/0434—Parameters defining the non-image area to be cleaned
    • G03G2215/0436—Document properties at the scanning position, e.g. position and density
    • 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
    • G03G2215/04—Arrangements for exposing and producing an image
    • G03G2215/0429—Changing or enhancing the image
    • G03G2215/0431—Producing a clean non-image area, i.e. avoiding show-around effects
    • G03G2215/0434—Parameters defining the non-image area to be cleaned
    • G03G2215/0443—Copy medium outline relative to the charge image
    • 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
    • G03G2215/04—Arrangements for exposing and producing an image
    • G03G2215/0429—Changing or enhancing the image
    • G03G2215/0431—Producing a clean non-image area, i.e. avoiding show-around effects
    • G03G2215/0434—Parameters defining the non-image area to be cleaned
    • G03G2215/0446—Magnification degree
    • 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
    • G03G2215/04—Arrangements for exposing and producing an image
    • G03G2215/0429—Changing or enhancing the image
    • G03G2215/0431—Producing a clean non-image area, i.e. avoiding show-around effects
    • G03G2215/0448—Charge-erasing means for the non-image area

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
JP13487379A 1979-10-19 1979-10-19 Destaticization device Granted JPS5659277A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP13487379A JPS5659277A (en) 1979-10-19 1979-10-19 Destaticization device
US06/194,230 US4384785A (en) 1979-10-19 1980-10-06 Charge quenching apparatus for electrophotographic copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13487379A JPS5659277A (en) 1979-10-19 1979-10-19 Destaticization device

Publications (2)

Publication Number Publication Date
JPS5659277A true JPS5659277A (en) 1981-05-22
JPH0359437B2 JPH0359437B2 (ja) 1991-09-10

Family

ID=15138467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13487379A Granted JPS5659277A (en) 1979-10-19 1979-10-19 Destaticization device

Country Status (2)

Country Link
US (1) US4384785A (ja)
JP (1) JPS5659277A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3341774A1 (de) * 1982-11-20 1984-05-24 Canon K.K., Tokio/Tokyo Bilderzeugungseinrichtung
JPS60247662A (ja) * 1984-05-24 1985-12-07 Fuji Xerox Co Ltd 原稿台を有する複写機
US7113715B2 (en) 2003-11-14 2006-09-26 Cheol-Ju Yang Method and apparatus to prevent a transfer roller from being contaminated in image forming systems
US7239780B2 (en) 2005-06-06 2007-07-03 Trumpf Laser Gmbh + Co. Kg Coupling device for a solid-state laser instrument

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS619671A (ja) * 1984-06-25 1986-01-17 Dainippon Screen Mfg Co Ltd 電子写真複写機における複写画像の部分撮り方法およびそのための装置
NL8500197A (nl) * 1985-01-25 1986-08-18 Oce Nederland Bv Reproductieinrichting waarin de breedte van de beeldvrije randzones op een kopie kan worden gevarieerd.
JPH0697365B2 (ja) * 1985-11-29 1994-11-30 三田工業株式会社 感光体の帯電領域制御装置
US4745438A (en) * 1986-09-16 1988-05-17 Xerox Corporation Automatic copier show-around erase system
US5528350A (en) * 1992-11-24 1996-06-18 Minolta Co., Ltd. Image forming apparatus with removal of excess toner
US5642145A (en) * 1992-11-24 1997-06-24 Minolta Co., Ltd. Image forming apparatus
US6118951A (en) * 1997-01-13 2000-09-12 Ricoh Company, Ltd. Image forming apparatus and toner replenishing device therefor
US5950055A (en) * 1997-04-18 1999-09-07 Ricoh Company, Ltd. Powder pump and image forming apparatus having the powder pump and method therefor
US6097903A (en) * 1997-08-18 2000-08-01 Ricoh Company, Ltd. Toner supplying device, toner container therefor and image forming apparatus using same toner supplying device and toner container
KR100324102B1 (ko) * 1998-01-26 2002-02-20 이토가 미찌야 개선된 토너공급장치 및 이를 이용한 화상형성장치
DE19923898B4 (de) * 1998-05-25 2007-07-19 Ricoh Co., Ltd. Tonerversorgungseinrichtung und -verfahren sowie Bilderzeugungsvorrichtung und -verfahren

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967896A (en) * 1975-05-14 1976-07-06 Rank Xerox Ltd. Variable edge fadeout apparatus for electrostatic reproduction machines
JPS5494038A (en) * 1978-01-07 1979-07-25 Ricoh Co Ltd Copier for zerography

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3341774A1 (de) * 1982-11-20 1984-05-24 Canon K.K., Tokio/Tokyo Bilderzeugungseinrichtung
US5072259A (en) * 1982-11-20 1991-12-10 Canon Kabushiki Kaisha Image forming apparatus having magnification capabilities with charge removal outside image area
JPS60247662A (ja) * 1984-05-24 1985-12-07 Fuji Xerox Co Ltd 原稿台を有する複写機
JPH0542675B2 (ja) * 1984-05-24 1993-06-29 Fuji Xerox Co Ltd
US7113715B2 (en) 2003-11-14 2006-09-26 Cheol-Ju Yang Method and apparatus to prevent a transfer roller from being contaminated in image forming systems
US7239780B2 (en) 2005-06-06 2007-07-03 Trumpf Laser Gmbh + Co. Kg Coupling device for a solid-state laser instrument

Also Published As

Publication number Publication date
US4384785A (en) 1983-05-24
JPH0359437B2 (ja) 1991-09-10

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