JPS5711360A - Surface potential stabilization method - Google Patents

Surface potential stabilization method

Info

Publication number
JPS5711360A
JPS5711360A JP8583880A JP8583880A JPS5711360A JP S5711360 A JPS5711360 A JP S5711360A JP 8583880 A JP8583880 A JP 8583880A JP 8583880 A JP8583880 A JP 8583880A JP S5711360 A JPS5711360 A JP S5711360A
Authority
JP
Japan
Prior art keywords
uniform charging
charger
grid voltage
controlled
potential
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
JP8583880A
Other languages
Japanese (ja)
Inventor
Moriyoshi Nakamura
Masatoshi Kimura
Isao Kondo
Masakatsu Horie
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8583880A priority Critical patent/JPS5711360A/en
Publication of JPS5711360A publication Critical patent/JPS5711360A/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

Landscapes

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

Abstract

PURPOSE:To effectively obtain always uniform charging potential, by detecting the surface potential of a photoreceptor before uniform charging, substiuting this for a control function set in advance, and controlling a charger by this calculated result. CONSTITUTION:A surface potential detector 9 is installed between a primary charger 2 controlled with a grid voltage and a cleaner 7, surface potentials before and after uniform charging are detected, and this is digitized with an A/D converter 10 to feed it to a controller 11. A control function represented by the equation (1) is stored in the controller 11, where surface potentials before and after uniform charging are Vso, Vs, respectively; grid voltage is Vg; and A, B, C are constants, so the grid voltage Vg is calculated from the above mentioned surface potentials Vso, Vs on the basis of the equation (1), and the charger 2 is controlled through the converter 13, thus permitting the charger to be effectively controlled from the first copying sheet, and uniform charging potential to be secured.
JP8583880A 1980-06-26 1980-06-26 Surface potential stabilization method Pending JPS5711360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8583880A JPS5711360A (en) 1980-06-26 1980-06-26 Surface potential stabilization method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8583880A JPS5711360A (en) 1980-06-26 1980-06-26 Surface potential stabilization method

Publications (1)

Publication Number Publication Date
JPS5711360A true JPS5711360A (en) 1982-01-21

Family

ID=13869994

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8583880A Pending JPS5711360A (en) 1980-06-26 1980-06-26 Surface potential stabilization method

Country Status (1)

Country Link
JP (1) JPS5711360A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5337025A (en) * 1976-09-17 1978-04-05 Canon Inc Stabilizing method for electrostatic latent

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5337025A (en) * 1976-09-17 1978-04-05 Canon Inc Stabilizing method for electrostatic latent

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