GB1448385A - Electrophotographic apparatus and transfer method - Google Patents

Electrophotographic apparatus and transfer method

Info

Publication number
GB1448385A
GB1448385A GB5422973A GB5422973A GB1448385A GB 1448385 A GB1448385 A GB 1448385A GB 5422973 A GB5422973 A GB 5422973A GB 5422973 A GB5422973 A GB 5422973A GB 1448385 A GB1448385 A GB 1448385A
Authority
GB
United Kingdom
Prior art keywords
nip
roller electrode
relaxible
nov
roller
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
Application number
GB5422973A
Other languages
English (en)
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.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of GB1448385A publication Critical patent/GB1448385A/en
Expired 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
    • G03G15/14—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
    • G03G15/1665—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 by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat
    • G03G15/167—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 by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat at least one of the recording member or the transfer member being rotatable during the transfer
    • G03G15/1675—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 by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat at least one of the recording member or the transfer member being rotatable during the transfer with means for controlling the bias applied in the transfer nip

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Fixing For Electrophotography (AREA)
GB5422973A 1972-11-24 1973-11-22 Electrophotographic apparatus and transfer method Expired GB1448385A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30956272A 1972-11-24 1972-11-24

Publications (1)

Publication Number Publication Date
GB1448385A true GB1448385A (en) 1976-09-08

Family

ID=23198720

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5422973A Expired GB1448385A (en) 1972-11-24 1973-11-22 Electrophotographic apparatus and transfer method

Country Status (8)

Country Link
US (1) US3781105A (ja)
JP (1) JPS5233494B2 (ja)
BR (1) BR7308055D0 (ja)
CA (1) CA1030009A (ja)
DE (1) DE2342856C3 (ja)
FR (1) FR2213519B1 (ja)
GB (1) GB1448385A (ja)
NL (1) NL161899C (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127230A (en) * 1982-09-20 1984-04-04 Konishiroku Photo Ind Corona discharge device for separating recording paper from image retaining member

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US3960556A (en) * 1973-03-01 1976-06-01 Addressograph Multigraph Corporation Constant current toner transfer
US3861861A (en) * 1973-08-10 1975-01-21 Xerox Corp Fuser roll cleaning apparatus
US3861860A (en) * 1973-10-01 1975-01-21 Xerox Corp Dry fuser roll cleaning apparatus
US4023894A (en) * 1973-11-30 1977-05-17 Xerox Corporation Transfer apparatus
US3879121A (en) * 1973-12-13 1975-04-22 Ibm Transfer system
JPS5826026B2 (ja) * 1974-02-01 1983-05-31 京セラミタ株式会社 転写方法
US3917881A (en) * 1974-04-01 1975-11-04 Addressograph Multigraph Electrostatic toner transfer
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US3959573A (en) * 1974-04-26 1976-05-25 Xerox Corporation Biasable member and method for making
CA1053968A (en) * 1974-09-09 1979-05-08 Joseph A. Swift Moisture stable bias transfer roll
US3920325A (en) * 1974-09-09 1975-11-18 Xerox Corp Moisture stable bias transfer roll
NL179517C (nl) * 1974-11-18 1986-09-16 Oce Van Der Grinten N V P A Oc Inrichting voor het elektrostatisch overdragen van een poederbeeld vanaf een drager naar een ontvangstmateriaal.
US3935517A (en) * 1975-01-02 1976-01-27 Xerox Corporation Constant current charging device
US3954332A (en) * 1975-01-10 1976-05-04 Xerox Corporation Reproduction machine with improved transfer roll
US3954333A (en) * 1975-01-10 1976-05-04 Xerox Corporation Transfer roll having means for monitoring and controlling the resistivity thereof
US4183655A (en) * 1975-10-07 1980-01-15 Ricoh Company, Ltd. Cleaning means for image transfer unit in electrophotographic copying machines
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DE2935491A1 (de) * 1979-09-03 1981-03-19 Hoechst Ag, 6000 Frankfurt Ausgabeeinrichtung eines kopiergeraets
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US4382673A (en) * 1980-03-25 1983-05-10 Tokyo Shibaura Denki Kabushiki Kaisha Transfer device
US4309803A (en) * 1980-09-29 1982-01-12 Xerox Corporation Low cost foam roll for electrostatographic reproduction machine
US4371251A (en) * 1981-02-27 1983-02-01 Eastman Kodak Company Electrographic method and apparatus providing improved transfer of non-insulative toner
US4607935A (en) * 1984-04-18 1986-08-26 Eastman Kodak Company Roller transfer apparatus
US4796047A (en) * 1987-03-23 1989-01-03 Eastman Kodak Company Roller transfer apparatus having an extended nip exhibiting low pressure
JPS63187273A (ja) * 1987-01-30 1988-08-02 Hitachi Ltd 電子写真プリンタ
US5168313A (en) * 1988-04-28 1992-12-01 Kabushiki Kaisha Toshiba Toner image transfer method and device for electrophotographic printing apparatus
US4977430A (en) * 1988-06-24 1990-12-11 Eastman Kodak Company Transfer roller power supply
US4998143A (en) * 1988-09-20 1991-03-05 Hitachi, Ltd. Electrophotographic image transfer member, electrophotographic image transfer device and electrophotographic recording apparatus
DE68925344T2 (de) * 1988-11-02 1996-06-27 Canon Kk Bilderzeugungsgerät
US5179397A (en) * 1989-04-03 1993-01-12 Canon Kabushiki Kaisha Image forming apparatus with constant voltage and constant current control
JP2717574B2 (ja) * 1989-04-27 1998-02-18 キヤノン株式会社 画像形成装置
JP2614317B2 (ja) * 1989-06-20 1997-05-28 キヤノン株式会社 画像形成装置
US5119550A (en) * 1989-07-03 1992-06-09 Eastman Kodak Company Method of making transfer apparatus having vacuum holes
US4941020A (en) * 1989-07-03 1990-07-10 Eastman Kodak Company Transfer apparatus having vacuum holes for holding a receiving sheet
US5006900A (en) * 1989-07-03 1991-04-09 Eastman Kodak Company Transfer apparatus having vacuum holes and method of making such apparatus
US5155535A (en) * 1989-07-03 1992-10-13 Eastman Kodak Company Transfer apparatus having a transfer member with vacuum means
US5287144A (en) * 1989-07-05 1994-02-15 Canon Kabushiki Kaisha Image forming apparatus having transfer charger which is controlled according to ambient conditions
US5011739A (en) * 1989-10-02 1991-04-30 Eastman Kodak Company Moisture stable biasable transfer members and method for making same
US5084737A (en) * 1990-09-24 1992-01-28 Eastman Kodak Company Image transfer method and apparatus wherein the application of the transfer bias is delayed as a function of humidity
US5040029A (en) * 1989-11-01 1991-08-13 Eastman Kodak Company Multicolor image transfer method and apparatus
EP0428172B1 (en) * 1989-11-16 1996-03-27 Canon Kabushiki Kaisha An image forming apparatus
US5264902A (en) * 1990-02-07 1993-11-23 Canon Kabushiki Kaisha Image forming device
EP0442527B1 (en) * 1990-02-16 1998-11-25 Canon Kabushiki Kaisha An image forming apparatus
US5036360A (en) * 1990-02-21 1991-07-30 Eastman Kodak Company Moisture compensation for electrostatographic apparatus
US5243392A (en) * 1990-04-23 1993-09-07 Xerox Corporation Imaging apparatus and process with intermediate transfer element
US5119141A (en) * 1991-01-31 1992-06-02 Compaq Computer Corporation Electrostatic roller transfer of toned images from a photoconductor member to a sheet substrate
EP0520819B1 (en) * 1991-06-28 1998-08-19 Canon Kabushiki Kaisha Image forming apparatus having charging member
KR960001957B1 (ko) * 1991-07-06 1996-02-08 후지쓰 가부시끼가이샤 도전성 롤러형 토너상 전사 장치
US5187526A (en) * 1991-09-23 1993-02-16 Eastman Kodak Company Method and apparatus of forming a toner image on a receiving sheet using an intermediate image member
JPH05107957A (ja) * 1991-10-15 1993-04-30 Mita Ind Co Ltd 画像形成装置
US5420677A (en) * 1991-11-08 1995-05-30 Xerox Corporation Method and apparatus for extending material life in a bias transfer roll
US5217838A (en) * 1991-11-26 1993-06-08 Eastman Kodak Company Moisture stable biasable transfer members
US5156915A (en) * 1991-11-26 1992-10-20 Eastman Kodak Company Moisture stable polyurethane biasable members
US5250357A (en) * 1991-11-26 1993-10-05 Eastman Kodak Company Moisture stable elastomeric polyurethane biasable transfer members
US5212032A (en) * 1991-11-26 1993-05-18 Eastman Kodak Company Moisture stable polyurethane biasable transfer members
US5284731A (en) * 1992-05-29 1994-02-08 Eastman Kodak Company Method of transfer of small electrostatographic toner particles
US5729810A (en) * 1993-01-22 1998-03-17 Xerox Corporation Overcoated transfer roller for transferring developed images from one surface to another
US5970297A (en) * 1994-03-28 1999-10-19 Xerox Corporation Transfer apparatus and method for removing residual material from a transfer member
US5554474A (en) * 1994-06-30 1996-09-10 Eastman Kodak Company Conductive substrate bearing a elastomeric polyurethane coating containing a conductivity control agent
US5541001A (en) * 1994-06-30 1996-07-30 Eastman Kodak Company Polyurethane biasable transfer members having improved moisture stability
JP3167084B2 (ja) * 1994-08-31 2001-05-14 キヤノン株式会社 画像形成装置
US5571457A (en) 1994-08-31 1996-11-05 Eastman Kodak Company Biasable transfer compositions and members having extended electrical life
US5677022A (en) * 1994-11-14 1997-10-14 Eastman Kodak Company Electrostatographic roller mask
US5536352A (en) * 1994-11-14 1996-07-16 Eastman Kodak Company Methods of making centrifugally cast parts
US5568228A (en) * 1994-12-14 1996-10-22 Eastman Kodak Company Image forming apparatus with controlled transfer
US5702852A (en) * 1995-08-31 1997-12-30 Eastman Kodak Company Multi-color method of toner transfer using non-marking toner and high pigment marking toner
US5796422A (en) * 1995-10-17 1998-08-18 Hewlett-Packard Company Direct toner projection printing using an intermediate transfer medium
US5643706A (en) * 1995-11-30 1997-07-01 Xerox Corporation Process for preparing electroconductive members
US5794111A (en) * 1995-12-14 1998-08-11 Eastman Kodak Company Apparatus and method of transfering toner using non-marking toner and marking toner
US5710964A (en) * 1996-07-29 1998-01-20 Eastman Kodak Company Mechanism for facilitating removal of receiver member from an intermediate image transfer member
US6075965A (en) * 1996-07-29 2000-06-13 Eastman Kodak Company Method and apparatus using an endless web for facilitating transfer of a marking particle image from an intermediate image transfer member to a receiver member
JPH10133496A (ja) * 1996-10-31 1998-05-22 Minolta Co Ltd 画像形成装置
US5724636A (en) * 1996-11-12 1998-03-03 Eastman Kodak Company Method and apparatus for transferring a toner image to a receiver sheet using an electrical bias
US5881347A (en) * 1997-04-21 1999-03-09 Eastman Kodak Company Biasing method and apparatus for electrostatically transferring an image
US6074756A (en) * 1997-04-25 2000-06-13 Eastman Kodak Company Transfer member for electrostatography
FI111475B (fi) 1997-09-24 2003-07-31 Metso Paper Inc Menetelmä ja sovitelma sumun ja pölyn hallitsemiseksi paperin ja kartongin valmistuksessa ja jälkikäsittelyssä
US5937229A (en) * 1997-12-29 1999-08-10 Eastman Kodak Company Image forming apparatus and method with control of electrostatic transfer using constant current
FI105052B (fi) * 1998-07-08 2000-05-31 Valmet Corp Menetelmä paperin valmistamiseksi, sovitelma menetelmän toteuttamiseksi ja menetelmän avulla valmistettu paperituote
US6175711B1 (en) * 1998-10-16 2001-01-16 Fuji Xerox Co., Ltd. Image forming apparatus having a toner diffuser
CN1123805C (zh) * 1998-11-24 2003-10-08 株式会社理光 图像形成装置中的消电技术及清洁技术的改良
US7214757B2 (en) 2000-03-09 2007-05-08 Eastman Kodak Company Polyurethane elastomers and shaped articles prepared therefrom
US6548154B1 (en) 2000-11-28 2003-04-15 Xerox Corporation Electrical charge relaxable wear resistant coating for bias charging or transfer member
JP2003131497A (ja) * 2001-10-29 2003-05-09 Ricoh Co Ltd 転写装置およびそれを用いた画像形成装置
US6606477B2 (en) 2002-01-16 2003-08-12 Xerox Corporation Method to control pre- and post-nip fields for transfer
US6611665B2 (en) 2002-01-18 2003-08-26 Xerox Corporation Method and apparatus using a biased transfer roll as a dynamic electrostatic voltmeter for system diagnostics and closed loop process controls
US7158746B2 (en) * 2004-05-25 2007-01-02 Xerox Corporation Xerographic printer having a semiresistive rotatable brush in the transfer zone
US7177572B2 (en) * 2004-06-25 2007-02-13 Xerox Corporation Biased charge roller with embedded electrodes with post-nip breakdown to enable improved charge uniformity
US7447452B2 (en) * 2006-11-01 2008-11-04 Xerox Corporation Method and system for improving electrophotographic run cost through cyclic efficiency of the charging device
US8396404B2 (en) 2010-08-26 2013-03-12 Xerox Corporation Image transfer nip method and apparatus using constant current controls
US9170518B2 (en) 2010-08-26 2015-10-27 Xerox Corporation Method and system for closed-loop control of nip width and image transfer field uniformity for an image transfer system
US8200136B2 (en) 2010-08-26 2012-06-12 Xerox Corporation Image transfer roller (ITR) utilizing an elastomer crown
US9014585B2 (en) 2013-03-15 2015-04-21 Xerox Corporation System and method for detecting bias transfer roll positions using resistance detection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127230A (en) * 1982-09-20 1984-04-04 Konishiroku Photo Ind Corona discharge device for separating recording paper from image retaining member

Also Published As

Publication number Publication date
JPS4984446A (ja) 1974-08-14
NL161899C (nl) 1980-03-17
CA1030009A (en) 1978-04-25
DE2342856B2 (de) 1979-10-31
NL7315343A (ja) 1974-05-28
JPS5233494B2 (ja) 1977-08-29
DE2342856C3 (de) 1980-07-24
FR2213519A1 (ja) 1974-08-02
BR7308055D0 (pt) 1974-10-22
NL161899B (nl) 1979-10-15
FR2213519B1 (ja) 1976-11-19
US3781105A (en) 1973-12-25
DE2342856A1 (de) 1974-05-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee