JPS56151969A - Image formation apparatus - Google Patents

Image formation apparatus

Info

Publication number
JPS56151969A
JPS56151969A JP5570980A JP5570980A JPS56151969A JP S56151969 A JPS56151969 A JP S56151969A JP 5570980 A JP5570980 A JP 5570980A JP 5570980 A JP5570980 A JP 5570980A JP S56151969 A JPS56151969 A JP S56151969A
Authority
JP
Japan
Prior art keywords
transfer
voltage application
transfer material
sensor
plate
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
JP5570980A
Other languages
Japanese (ja)
Inventor
Yoshinori Yasuguro
Tsutomu Toyono
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 JP5570980A priority Critical patent/JPS56151969A/en
Publication of JPS56151969A publication Critical patent/JPS56151969A/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
    • G03G15/14—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
    • G03G15/165—Arrangements for supporting or transporting the second base in the transfer area, e.g. guides

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To prevent toner stains even under high humidity and to improve image transfer, by providing voltage application means and a transfer material sensor on a transfer guide plate, and applying bias voltage only when the transfer material passes. CONSTITUTION:Transfer material sensor 11 is provided on the middle part of transfer guide plate 4, and voltage application of voltage application means 13 is controlled by the signal of sensor 11 via control circuit 12. When a transfer material passes along plate 4, the bias volatage is applied, and when it is absent, the voltage application is cut off, thus permitting toner particles not to attach to plate 4 at all, even if the particles are present on the surface of a photoreceptor, toner stains to be remarkably alleviated, and superior transfer to be made under high humidity.
JP5570980A 1980-04-26 1980-04-26 Image formation apparatus Pending JPS56151969A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5570980A JPS56151969A (en) 1980-04-26 1980-04-26 Image formation apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5570980A JPS56151969A (en) 1980-04-26 1980-04-26 Image formation apparatus

Publications (1)

Publication Number Publication Date
JPS56151969A true JPS56151969A (en) 1981-11-25

Family

ID=13006403

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5570980A Pending JPS56151969A (en) 1980-04-26 1980-04-26 Image formation apparatus

Country Status (1)

Country Link
JP (1) JPS56151969A (en)

Similar Documents

Publication Publication Date Title
JPS5337025A (en) Stabilizing method for electrostatic latent
JPS5242125A (en) Transfer process for toner image and device therefor
JPS5754962A (en) Development device
GB2014748B (en) Electrophotographic material for obtaining toner image and process for forming printing plate by using the same
DE3169041D1 (en) Developing material supplying control device for electrostatic copying apparatus
ATE30972T1 (en) TONER SYSTEM.
AU541409B2 (en) Electrophotographic recording material
JPS5393835A (en) Copy picture quality controller of electrostatic copying machine
JPS56151969A (en) Image formation apparatus
JPS543546A (en) Exposure device
DE3482621D1 (en) ELECTROPHOTOGRAPHIC PRINT PLATE MATERIAL.
JPS56156846A (en) Recording device
JPS64582A (en) Picture density controller
JPS5799675A (en) Controller for amount of transfer charging of transfer copying machine
JPS52110046A (en) Electrophotographic image control
SU702355A1 (en) Flow control apparatus
JPS5271240A (en) Electrophotography
JPS57196266A (en) Controlling method and device for electronic copying machine
JPS5357843A (en) Simultaneous exposure and charging device
JPS5312623A (en) Electrophotographic light sensitive layer
JPS542138A (en) Wet type developing device for malticolor copier
JPS5268425A (en) Corona charging means
JPS5742064A (en) Control device for toner density in dry type developing device
JPS537236A (en) Cleaning time control for copying machine for electronic photography
JPS6460177A (en) Image pick-up device