JPS5639556A - Electrophotographic copier - Google Patents

Electrophotographic copier

Info

Publication number
JPS5639556A
JPS5639556A JP11496979A JP11496979A JPS5639556A JP S5639556 A JPS5639556 A JP S5639556A JP 11496979 A JP11496979 A JP 11496979A JP 11496979 A JP11496979 A JP 11496979A JP S5639556 A JPS5639556 A JP S5639556A
Authority
JP
Japan
Prior art keywords
image
heat accumulator
time
control circuit
accordance
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
JP11496979A
Other languages
Japanese (ja)
Inventor
Mitsuaki Kamiyama
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11496979A priority Critical patent/JPS5639556A/en
Publication of JPS5639556A publication Critical patent/JPS5639556A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE: To obtain a high quality image, by detecting temperature change of a heat accumulator, changing charging voltage to a photoreceptor in accordance with its temperature change, and controlling characteristics of a copy image.
CONSTITUTION: A charge potential of a photoreceptor changes with time, temperature detector 36 is contacted to heat accumulator 31 approximate to it in time constant, and voltage of charger 40 is controlled in accordance with its temperature changing with time through image control circuit 38 and charging voltage control circuit 39. As a heat accumulator, a combination of a heater and ceramics, as well as lamps for destaticization or exposure can be used, thus permitting an image to be stabilized securely in a simple manner.
COPYRIGHT: (C)1981,JPO&Japio
JP11496979A 1979-09-07 1979-09-07 Electrophotographic copier Pending JPS5639556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11496979A JPS5639556A (en) 1979-09-07 1979-09-07 Electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11496979A JPS5639556A (en) 1979-09-07 1979-09-07 Electrophotographic copier

Publications (1)

Publication Number Publication Date
JPS5639556A true JPS5639556A (en) 1981-04-15

Family

ID=14651104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11496979A Pending JPS5639556A (en) 1979-09-07 1979-09-07 Electrophotographic copier

Country Status (1)

Country Link
JP (1) JPS5639556A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS638772A (en) * 1986-06-30 1988-01-14 Mita Ind Co Ltd Temperature controller for photosensitive drum

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS638772A (en) * 1986-06-30 1988-01-14 Mita Ind Co Ltd Temperature controller for photosensitive drum

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