JPS57135964A - Electrophotographic transfer device - Google Patents

Electrophotographic transfer device

Info

Publication number
JPS57135964A
JPS57135964A JP56021237A JP2123781A JPS57135964A JP S57135964 A JPS57135964 A JP S57135964A JP 56021237 A JP56021237 A JP 56021237A JP 2123781 A JP2123781 A JP 2123781A JP S57135964 A JPS57135964 A JP S57135964A
Authority
JP
Japan
Prior art keywords
transfer
destaticizing
power source
current value
electric field
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
JP56021237A
Other languages
Japanese (ja)
Other versions
JPH0343624B2 (en
Inventor
Atsushi Takagi
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 JP56021237A priority Critical patent/JPS57135964A/en
Publication of JPS57135964A publication Critical patent/JPS57135964A/en
Publication of JPH0343624B2 publication Critical patent/JPH0343624B2/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
    • G03G15/14—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)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To control a transfer electric field always to correct transfer conditions by controlling an electric power source applying the electric field to a transfer material according to the destaticizing current value flowing the electrostatic charge on the transfer material right after transfer to a grounding electrode. CONSTITUTION:A toner image is formed on the surface of a drum 1 having a photoconductive photosensitive layer 2, and is transferred onto a transfer material 4. The material 4 is fed with a pair of feed rollers 11, 12, a guide roller 13, etc., and receives a transfer electric field by a corona charger 5. After the transfer, the electric charge on the material 4 is destaticized through a grounding electrode 6. The electrode 6 is made of stainless steel or the like of, for example, 0.2mm., detects the destaticizing current value and is connected via an amplifier 9 to a high voltage power source 10. In accordance with the detected value, a high voltage power source 10 is controlled, so that the destaticizing current value flowing to the electrode 6 is made constant in spite of the environmental change of humidity, etc.
JP56021237A 1981-02-16 1981-02-16 Electrophotographic transfer device Granted JPS57135964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56021237A JPS57135964A (en) 1981-02-16 1981-02-16 Electrophotographic transfer device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56021237A JPS57135964A (en) 1981-02-16 1981-02-16 Electrophotographic transfer device

Publications (2)

Publication Number Publication Date
JPS57135964A true JPS57135964A (en) 1982-08-21
JPH0343624B2 JPH0343624B2 (en) 1991-07-03

Family

ID=12049433

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56021237A Granted JPS57135964A (en) 1981-02-16 1981-02-16 Electrophotographic transfer device

Country Status (1)

Country Link
JP (1) JPS57135964A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62170964U (en) * 1986-04-18 1987-10-29
EP0473161A2 (en) * 1990-08-31 1992-03-04 Sharp Kabushiki Kaisha A recording paper separating device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62170964U (en) * 1986-04-18 1987-10-29
EP0473161A2 (en) * 1990-08-31 1992-03-04 Sharp Kabushiki Kaisha A recording paper separating device
US5339144A (en) * 1990-08-31 1994-08-16 Sharp Kabushiki Kaisha Recording paper separating device with constant current control

Also Published As

Publication number Publication date
JPH0343624B2 (en) 1991-07-03

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