JPS56126846A - Picture forming equipment - Google Patents

Picture forming equipment

Info

Publication number
JPS56126846A
JPS56126846A JP3063980A JP3063980A JPS56126846A JP S56126846 A JPS56126846 A JP S56126846A JP 3063980 A JP3063980 A JP 3063980A JP 3063980 A JP3063980 A JP 3063980A JP S56126846 A JPS56126846 A JP S56126846A
Authority
JP
Japan
Prior art keywords
positive
process apparatus
copying
corona charger
apparatuses
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
JP3063980A
Other languages
Japanese (ja)
Inventor
Nagao Hosono
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 JP3063980A priority Critical patent/JPS56126846A/en
Publication of JPS56126846A publication Critical patent/JPS56126846A/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
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/045—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To selectively execute both the positive copying and the negative copying, by switching the latent image forming process by means of a switch. CONSTITUTION:The swit has provided a photo conductive material layer 1b and an electric insulating layer 1c on the drum cylinder 1a made of aluminum is used as a photo sensitive body 1. Around the photosensitive body 1, apparatuses of the first- the sixth process are placed in accordance with its copying process. That is to say, the apparatuses to be placed are a primary corona charger (positive polarity) 2 as the first process apparatus, a corona charger 3 as the second process apparatus which executes charging of the opposite polarity to the first process, a short focus lens array 4 as the third process apparatus for exposing optical image on the photo sensitive body, a corona charger 5 as the fourth process apparatus which executes charging of the same polarity as the second process, the fifth process apparatus 6 for equally exposing the whole surface, and a developing equipment (positive charging insulating toner is used) 7 as the sixth process. A negative or positive visible image is used by selecting the processes 1-6, and the processes 1, 2, 3, 6 by switching the switch 12.
JP3063980A 1980-03-11 1980-03-11 Picture forming equipment Pending JPS56126846A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3063980A JPS56126846A (en) 1980-03-11 1980-03-11 Picture forming equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3063980A JPS56126846A (en) 1980-03-11 1980-03-11 Picture forming equipment

Publications (1)

Publication Number Publication Date
JPS56126846A true JPS56126846A (en) 1981-10-05

Family

ID=12309401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3063980A Pending JPS56126846A (en) 1980-03-11 1980-03-11 Picture forming equipment

Country Status (1)

Country Link
JP (1) JPS56126846A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526179A1 (en) * 1982-04-30 1983-11-04 Canon Kk TREATMENT UNIT MOUNTED ON IMAGE TRAINING APPARATUS AND APPARATUS
US5456117A (en) * 1993-04-21 1995-10-10 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Pressure sensor apparatus and method of manufacturing wherein the silicon-crystal substrate of the sensor has inclined crystallographic axes and gage resistors formed in a cavity of the substrate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526179A1 (en) * 1982-04-30 1983-11-04 Canon Kk TREATMENT UNIT MOUNTED ON IMAGE TRAINING APPARATUS AND APPARATUS
US5456117A (en) * 1993-04-21 1995-10-10 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Pressure sensor apparatus and method of manufacturing wherein the silicon-crystal substrate of the sensor has inclined crystallographic axes and gage resistors formed in a cavity of the substrate

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