JPS5737356A - Retention type electrostatic recording apparatus - Google Patents

Retention type electrostatic recording apparatus

Info

Publication number
JPS5737356A
JPS5737356A JP11162380A JP11162380A JPS5737356A JP S5737356 A JPS5737356 A JP S5737356A JP 11162380 A JP11162380 A JP 11162380A JP 11162380 A JP11162380 A JP 11162380A JP S5737356 A JPS5737356 A JP S5737356A
Authority
JP
Japan
Prior art keywords
surface potential
nonimage areas
bias voltage
electrometer
recording apparatus
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
JP11162380A
Other languages
Japanese (ja)
Inventor
Noriyoshi Tarumi
Kiyoshi Kimura
Haruo Iwahashi
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta 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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP11162380A priority Critical patent/JPS5737356A/en
Publication of JPS5737356A publication Critical patent/JPS5737356A/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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/065—Arrangements for controlling the potential of the developing electrode

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Developing For Electrophotography (AREA)

Abstract

PURPOSE:To prevent fog on nonimage areas and a fringe phenomenon, by detecting surface potential on a prescribed position of a charge retaining member prior to development of an electrostatic latent image, and controlling bias voltage to be applied to a developing means. CONSTITUTION:An electrometer 24 for detecting surface potential of nonimage areas on a photoreceptor 11a is arranged between a developing device 13 and the point on which a light reflected from an original M is projected on the receptor 11a near this. A surface potential detection signal obtained with the electrometer 24 is sent through a switch 25 to a memory circuit 26, stored for one cycle, amplified, and applied to the magnetic sleeve 13a of the device 13 as a bias voltage, thus permitting surface potential of the nonimage areas to rise gradually as a copying cycle proceeds, therefore, the bias voltage to be increased gradually in accordance with the surface potential of the nonimage areas.
JP11162380A 1980-08-15 1980-08-15 Retention type electrostatic recording apparatus Pending JPS5737356A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11162380A JPS5737356A (en) 1980-08-15 1980-08-15 Retention type electrostatic recording apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11162380A JPS5737356A (en) 1980-08-15 1980-08-15 Retention type electrostatic recording apparatus

Publications (1)

Publication Number Publication Date
JPS5737356A true JPS5737356A (en) 1982-03-01

Family

ID=14566004

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11162380A Pending JPS5737356A (en) 1980-08-15 1980-08-15 Retention type electrostatic recording apparatus

Country Status (1)

Country Link
JP (1) JPS5737356A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0411479A2 (en) * 1989-08-02 1991-02-06 ISHIHARA SANGYO KAISHA, Ltd. Method for electrophotographic image formation
EP0475334A2 (en) * 1990-09-11 1992-03-18 Mita Industrial Co. Ltd. Image forming device and method of forming images
JPH07261513A (en) * 1994-03-18 1995-10-13 Canon Inc Image forming device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0411479A2 (en) * 1989-08-02 1991-02-06 ISHIHARA SANGYO KAISHA, Ltd. Method for electrophotographic image formation
US5304442A (en) * 1989-08-02 1994-04-19 Ishihara Sangyo Kaisha, Ltd. Method for electrophotographic image formation
EP0475334A2 (en) * 1990-09-11 1992-03-18 Mita Industrial Co. Ltd. Image forming device and method of forming images
JPH07261513A (en) * 1994-03-18 1995-10-13 Canon Inc Image forming device

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