JPS5529858A - Electrostatic recorder - Google Patents

Electrostatic recorder

Info

Publication number
JPS5529858A
JPS5529858A JP10303878A JP10303878A JPS5529858A JP S5529858 A JPS5529858 A JP S5529858A JP 10303878 A JP10303878 A JP 10303878A JP 10303878 A JP10303878 A JP 10303878A JP S5529858 A JPS5529858 A JP S5529858A
Authority
JP
Japan
Prior art keywords
output
power source
high voltage
voltage power
surface potentials
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
JP10303878A
Other languages
Japanese (ja)
Other versions
JPH0253789B2 (en
Inventor
Koji Suzuki
Yoshikazu Yokomizo
Yoshitaka Kawamo
Shinkichi Takahashi
Hiroaki Tsuchiya
Shinichi Iwasaki
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 JP10303878A priority Critical patent/JPS5529858A/en
Publication of JPS5529858A publication Critical patent/JPS5529858A/en
Publication of JPH0253789B2 publication Critical patent/JPH0253789B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE: To enable stable images to be formed by repeatedly performing detection of surface potentials on a recording medium and the output controlling of a high voltage power source and resetting the output of the high voltage power source to the recording medium at the specified value at the required timing.
CONSTITUTION: In the electrostatic recorder provided with a high voltage power source of a charging corona discharger which is capable of varying output, a detecting means which detects the surface potentials on a recording medium and a control means which controls the output of the high voltage power source by the output of this detecting means, the detection of the surface potentials by the detecting means and the output controlling of the high voltage power source are repeatedly corrected, wherein, for example, the correction times are made 0 to 4 times according to states 1 thru 4, and in the state 1, the control output current value of the previous time is directly used; in the state 2, the control output current of the previous time is flowed to the photoreceptor and the surface potentials are detected and controlled; and in the states 3 and 4, a reference current is flowed to the photoreceptor and measurement of the surface potentials and controlling of the output current are performed in the first correction.
COPYRIGHT: (C)1980,JPO&Japio
JP10303878A 1978-08-24 1978-08-24 Electrostatic recorder Granted JPS5529858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10303878A JPS5529858A (en) 1978-08-24 1978-08-24 Electrostatic recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10303878A JPS5529858A (en) 1978-08-24 1978-08-24 Electrostatic recorder

Publications (2)

Publication Number Publication Date
JPS5529858A true JPS5529858A (en) 1980-03-03
JPH0253789B2 JPH0253789B2 (en) 1990-11-19

Family

ID=14343485

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10303878A Granted JPS5529858A (en) 1978-08-24 1978-08-24 Electrostatic recorder

Country Status (1)

Country Link
JP (1) JPS5529858A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57102670A (en) * 1980-12-19 1982-06-25 Canon Inc Color copying machine
US8107839B2 (en) * 2006-08-15 2012-01-31 Kyocera Mita Corporation Image forming apparatus with bias applying device for applying a charging bias to a charging roller and with a bias corrector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57102670A (en) * 1980-12-19 1982-06-25 Canon Inc Color copying machine
JPH0158506B2 (en) * 1980-12-19 1989-12-12 Canon Kk
US8107839B2 (en) * 2006-08-15 2012-01-31 Kyocera Mita Corporation Image forming apparatus with bias applying device for applying a charging bias to a charging roller and with a bias corrector

Also Published As

Publication number Publication date
JPH0253789B2 (en) 1990-11-19

Similar Documents

Publication Publication Date Title
JPS56110968A (en) Electrophotographic device
JPS53136838A (en) Automatic controlling method of image quality in transfer type electrostatic copier
JPS5237431A (en) Ink sensor for ink jet recording device
JPS5529858A (en) Electrostatic recorder
JPS5529857A (en) Electrostatic recorder
JPS5662275A (en) Developing method
JPS5484738A (en) Developing device for variable magnification copier
JPS5473055A (en) Charge quantity controller in electrophotographic copier
JPS549631A (en) Automatic control system for charging amount
JPS5688142A (en) Image density control device
JPS55106478A (en) Electrostatic latent image developing unit
JPS56150762A (en) Control method for surface potential of photoreceptor of electrophotographic copier
JPS57164739A (en) Copying apparatus
JPS52119326A (en) Two-color electrostatic recording means
JPS5536856A (en) High voltage power source device for electrophotographic copier
JPS52143833A (en) Method and device for charging by corona discharge
JPS5643648A (en) Electrophotographic apparatus
JPS5236038A (en) Electrostatic latent image transfer device
JPS5557855A (en) Development bias voltage control method of electrophotographic copier
JPS5677850A (en) Method of controlling surface potential of photoreceptor of electrophotographic copier
JPS5290942A (en) Electrostatic printing
JPS575058A (en) Charging controller
JPS52125341A (en) Magnetic brush development device for electrophotographic copier
JPS5483839A (en) Image control
JPS5517174A (en) Image stabilizing method