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JPS56150762A - Control method for surface potential of photoreceptor of electrophotographic copier - Google Patents

Control method for surface potential of photoreceptor of electrophotographic copier

Info

Publication number
JPS56150762A
JPS56150762A JP5473180A JP5473180A JPS56150762A JP S56150762 A JPS56150762 A JP S56150762A JP 5473180 A JP5473180 A JP 5473180A JP 5473180 A JP5473180 A JP 5473180A JP S56150762 A JPS56150762 A JP S56150762A
Authority
JP
Japan
Prior art keywords
potential
photoreceptor
detected
reference potential
charger
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
JP5473180A
Other languages
Japanese (ja)
Inventor
Masayoshi Furuichi
Takashi Amano
Shizuo Tsuchiya
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 Finetech Nisca Inc
Original Assignee
Copyer 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 Copyer Co Ltd filed Critical Copyer Co Ltd
Priority to JP5473180A priority Critical patent/JPS56150762A/en
Publication of JPS56150762A publication Critical patent/JPS56150762A/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
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0266—Arrangements for controlling the amount of charge
    • 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
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0291—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices corona discharge devices, e.g. wires, pointed electrodes, means for cleaning the corona discharge device

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To sufficiently prevent the degradation in image quality by providing a detector which detects the surface potential of a photoreceptor between a charger and developer provided near the photoreceptor, and controlling the reference potential for converging the potential detected with this device. CONSTITUTION:The potential of the surface of a photoreceptor which is uniformly charged by a charger (corona discharger) 6 is detected by a photoreceptor surface potential detector 8. When the detected potential deviates from the reference potential, a comparator 18 applies the control signal (g) to a corona discharge regulator 22 which in turn controls the potential to be applied from a power source 24 to a charger 26, thereby controlling the potential detected at the detecting position B in a manner as to be made equal to the reference potential. On the other hand, when an arithmetic circuit 28 receives the equil. signal (k) from the comparator 18, it applies the compensation potential (m) to a compensating circuit 16, which in turn changes the reference potential from b1 to b2. In this way the potential is returned to desired C1 at the detecting position C by determining the new reference potential, whereby the degradation in image quality is prevented.
JP5473180A 1980-04-24 1980-04-24 Control method for surface potential of photoreceptor of electrophotographic copier Pending JPS56150762A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5473180A JPS56150762A (en) 1980-04-24 1980-04-24 Control method for surface potential of photoreceptor of electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5473180A JPS56150762A (en) 1980-04-24 1980-04-24 Control method for surface potential of photoreceptor of electrophotographic copier

Publications (1)

Publication Number Publication Date
JPS56150762A true JPS56150762A (en) 1981-11-21

Family

ID=12978940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5473180A Pending JPS56150762A (en) 1980-04-24 1980-04-24 Control method for surface potential of photoreceptor of electrophotographic copier

Country Status (1)

Country Link
JP (1) JPS56150762A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58211669A (en) * 1982-06-03 1983-12-09 Canon Inc Calibration of surface potential meter
JPS61281259A (en) * 1985-06-07 1986-12-11 Canon Inc Picture forming device
JPS62284371A (en) * 1986-06-03 1987-12-10 Canon Inc Image forming device
JPH06198275A (en) * 1992-12-28 1994-07-19 Ogawa Kankyo Kenkyusho:Kk Method and device for waste liquid treatment
US20160103408A1 (en) * 2014-10-09 2016-04-14 Keita Sone Image forming apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53116158A (en) * 1977-03-19 1978-10-11 Ricoh Co Ltd Program control device for electrophotographic copier
JPS53136838A (en) * 1977-05-04 1978-11-29 Ricoh Co Ltd Automatic controlling method of image quality in transfer type electrostatic copier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53116158A (en) * 1977-03-19 1978-10-11 Ricoh Co Ltd Program control device for electrophotographic copier
JPS53136838A (en) * 1977-05-04 1978-11-29 Ricoh Co Ltd Automatic controlling method of image quality in transfer type electrostatic copier

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58211669A (en) * 1982-06-03 1983-12-09 Canon Inc Calibration of surface potential meter
JPH0456262B2 (en) * 1982-06-03 1992-09-07 Canon Kk
JPS61281259A (en) * 1985-06-07 1986-12-11 Canon Inc Picture forming device
JPS62284371A (en) * 1986-06-03 1987-12-10 Canon Inc Image forming device
JPH06198275A (en) * 1992-12-28 1994-07-19 Ogawa Kankyo Kenkyusho:Kk Method and device for waste liquid treatment
US20160103408A1 (en) * 2014-10-09 2016-04-14 Keita Sone Image forming apparatus
US9513585B2 (en) * 2014-10-09 2016-12-06 Ricoh Company, Ltd. Image forming apparatus which sets image forming condition based on calculated exposed area potential

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