JPS5799675A - Controller for amount of transfer charging of transfer copying machine - Google Patents

Controller for amount of transfer charging of transfer copying machine

Info

Publication number
JPS5799675A
JPS5799675A JP55176196A JP17619680A JPS5799675A JP S5799675 A JPS5799675 A JP S5799675A JP 55176196 A JP55176196 A JP 55176196A JP 17619680 A JP17619680 A JP 17619680A JP S5799675 A JPS5799675 A JP S5799675A
Authority
JP
Japan
Prior art keywords
transfer
amount
charging
transfer paper
surface potential
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.)
Pending
Application number
JP55176196A
Other languages
Japanese (ja)
Inventor
Hiroaki Tsuchiya
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 JP55176196A priority Critical patent/JPS5799675A/en
Publication of JPS5799675A publication Critical patent/JPS5799675A/en
Pending 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
    • G03G15/50—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
    • G03G15/5037—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 the characteristics being an electrical parameter, e.g. voltage
    • 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)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To obtain a transfer rate which is stable to the material change of transfer paper, dirtying of a charger, environmental variation, etc., by controlling the amount of transfer charging so that the surface potential of a photoreceptor, etc., after the transfer charging has a prescribed value. CONSTITUTION:The surface potential of a photoreceptor 1 after an image is transferred to transfer paper P after transfer charge is detected by a potential sensor 8. Through a measuring circuit 9, a control circuit 10 whose set values are switches according to the thickness, etc., of the transfer paper P, a holding circuit 11, etc., the amount of transfer charging by a transfer charge 4 is controlled as prescribed. Under the said control, copied image of uniform density are formed at a transfer rate which is stable to the material change of the transfer paper, dirtying of the charger, environmental variation, etc. Further, the same effect is obtained by performing control by detecting the surface potential of the transfer paper.
JP55176196A 1980-12-12 1980-12-12 Controller for amount of transfer charging of transfer copying machine Pending JPS5799675A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55176196A JPS5799675A (en) 1980-12-12 1980-12-12 Controller for amount of transfer charging of transfer copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55176196A JPS5799675A (en) 1980-12-12 1980-12-12 Controller for amount of transfer charging of transfer copying machine

Publications (1)

Publication Number Publication Date
JPS5799675A true JPS5799675A (en) 1982-06-21

Family

ID=16009305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55176196A Pending JPS5799675A (en) 1980-12-12 1980-12-12 Controller for amount of transfer charging of transfer copying machine

Country Status (1)

Country Link
JP (1) JPS5799675A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0376732A2 (en) * 1988-12-28 1990-07-04 Canon Kabushiki Kaisha Image forming apparatus
JP2002224470A (en) * 2001-01-30 2002-08-13 Kaijirushi Hamono Kaihatsu Center:Kk Protective cap for head of safety razor
JP2014119706A (en) * 2012-12-19 2014-06-30 Ricoh Co Ltd Image forming apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0376732A2 (en) * 1988-12-28 1990-07-04 Canon Kabushiki Kaisha Image forming apparatus
US5041877A (en) * 1988-12-28 1991-08-20 Canon Kabushiki Kaisha Image forming apparatus
JP2002224470A (en) * 2001-01-30 2002-08-13 Kaijirushi Hamono Kaihatsu Center:Kk Protective cap for head of safety razor
JP2014119706A (en) * 2012-12-19 2014-06-30 Ricoh Co Ltd Image forming apparatus

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