CA2010623A1 - Toner image transferring device used in electrophotographic field - Google Patents

Toner image transferring device used in electrophotographic field

Info

Publication number
CA2010623A1
CA2010623A1 CA2010623A CA2010623A CA2010623A1 CA 2010623 A1 CA2010623 A1 CA 2010623A1 CA 2010623 A CA2010623 A CA 2010623A CA 2010623 A CA2010623 A CA 2010623A CA 2010623 A1 CA2010623 A1 CA 2010623A1
Authority
CA
Canada
Prior art keywords
toner image
paper
sheet
transferring device
electric
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
CA2010623A
Other languages
French (fr)
Other versions
CA2010623C (en
Inventor
Masatoshi Kimura
Sachio Sasaki
Hideaki Iwasaki
Kunihiko Sato
Masao Konishi
Akiyoshi Iwamasa
Toshio Tooda
Hiroshi Nou
Shigenobu Utaka
Ryo Kitao
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.)
Fujifilm Business Innovation Corp
Original Assignee
Individual
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 JP1044368A external-priority patent/JPH02223980A/en
Priority claimed from JP1044369A external-priority patent/JPH02223978A/en
Priority claimed from JP1044367A external-priority patent/JPH0820815B2/en
Application filed by Individual filed Critical Individual
Publication of CA2010623A1 publication Critical patent/CA2010623A1/en
Application granted granted Critical
Publication of CA2010623C publication Critical patent/CA2010623C/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
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)

Abstract

A toner image transferring device is applied to, for example, an electrophotographic printer for electrostatically transferring a charged toner image from a photosensitive drum to a sheet or paper, and comprises a transfer charger disposed near the drum to form a clearance therebetween for feeding an electric charge to the sheet or paper through which the sheet or paper is passed, an electric source for supplying an electric energy to the transfer charger to give the sheet or paper an electric charge having a polarity opposite to that of the charge of the toner image, and a controller for controlling the electric energy output from the electric source the transfer charger so that a leading edge of the sheet or paper can be prevented from being excessively charged.
CA002010623A 1989-02-25 1990-02-21 Toner image transferring device used in electrophotographic field Expired - Lifetime CA2010623C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP1-44368 1989-02-25
JP1-44367 1989-02-25
JP1044368A JPH02223980A (en) 1989-02-25 1989-02-25 Toner image transfer device
JP1-44369 1989-02-25
JP1044369A JPH02223978A (en) 1989-02-25 1989-02-25 Toner image transfer device
JP1044367A JPH0820815B2 (en) 1989-02-25 1989-02-25 Toner image transfer device

Publications (2)

Publication Number Publication Date
CA2010623A1 true CA2010623A1 (en) 1990-08-25
CA2010623C CA2010623C (en) 1995-01-24

Family

ID=27291867

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002010623A Expired - Lifetime CA2010623C (en) 1989-02-25 1990-02-21 Toner image transferring device used in electrophotographic field

Country Status (4)

Country Link
EP (1) EP0385674B1 (en)
KR (1) KR930010872B1 (en)
CA (1) CA2010623C (en)
DE (1) DE69021411T2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0436306A3 (en) * 1989-12-06 1992-03-18 Konica Corporation Image forming apparatus
US5276491A (en) * 1989-12-06 1994-01-04 Konica Corporation Image forming apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5422837A (en) * 1977-07-21 1979-02-21 Ricoh Co Ltd Charge control of copying apparatus for zerography
JPS6114670A (en) * 1984-06-30 1986-01-22 Ricoh Co Ltd Electrophotographic device
US4728991A (en) * 1984-09-19 1988-03-01 Canon Kabushiki Kaisha Image forming apparatus
JPS61188570A (en) * 1985-02-16 1986-08-22 Canon Inc Transferring and separating device
JPH01201686A (en) * 1988-02-08 1989-08-14 Ricoh Co Ltd Image forming device

Also Published As

Publication number Publication date
EP0385674A2 (en) 1990-09-05
DE69021411D1 (en) 1995-09-14
EP0385674B1 (en) 1995-08-09
CA2010623C (en) 1995-01-24
DE69021411T2 (en) 1996-02-15
KR930010872B1 (en) 1993-11-15
KR910015895A (en) 1991-09-30
EP0385674A3 (en) 1991-09-04

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry
MKEX Expiry

Effective date: 20100221