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JPS57163254A - Electrophotographic copier - Google Patents

Electrophotographic copier

Info

Publication number
JPS57163254A
JPS57163254A JP56049711A JP4971181A JPS57163254A JP S57163254 A JPS57163254 A JP S57163254A JP 56049711 A JP56049711 A JP 56049711A JP 4971181 A JP4971181 A JP 4971181A JP S57163254 A JPS57163254 A JP S57163254A
Authority
JP
Japan
Prior art keywords
original
region
indicator
copy
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
JP56049711A
Other languages
Japanese (ja)
Inventor
Fukusaburo Ito
Takashi Shimada
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP56049711A priority Critical patent/JPS57163254A/en
Publication of JPS57163254A publication Critical patent/JPS57163254A/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
    • G03G15/0275—Arrangements for controlling the area of the photoconductor to be charged
    • 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)
  • Holders For Sensitive Materials And Originals (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To obtain a copy of the desired region of an original in an assured way, by providing a charged region control means that applies the electric charge only to the part corresponding to the copy desired region of the original to a photoreceptor according to an indicator that indicates the desired copying region of the original. CONSTITUTION:A slidable indicator 44 contains an original platen 4 of an original 5 at the upper part plus a pointer 45 that indicates the copying region of the original 5. A corona charger 2 is provided to the indicator 44 to apply the electric charger only to the region on the photoreceptor surface corresponding to the designated region on the original. At the same time, a illuminating device 18 is provided between the charger 2 and a development part 7. The device 18 controls the region of illumination through a light source 6 by the control of a control circuit and as indicated by the indicator 44. Thus the copy is obtained only for the desired region of an original.
JP56049711A 1981-04-01 1981-04-01 Electrophotographic copier Pending JPS57163254A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56049711A JPS57163254A (en) 1981-04-01 1981-04-01 Electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56049711A JPS57163254A (en) 1981-04-01 1981-04-01 Electrophotographic copier

Publications (1)

Publication Number Publication Date
JPS57163254A true JPS57163254A (en) 1982-10-07

Family

ID=12838766

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56049711A Pending JPS57163254A (en) 1981-04-01 1981-04-01 Electrophotographic copier

Country Status (1)

Country Link
JP (1) JPS57163254A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4912829A (en) * 1972-04-17 1974-02-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4912829A (en) * 1972-04-17 1974-02-04

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