JPS5773758A - Protector for screen-shaped photoreceptor - Google Patents

Protector for screen-shaped photoreceptor

Info

Publication number
JPS5773758A
JPS5773758A JP14964880A JP14964880A JPS5773758A JP S5773758 A JPS5773758 A JP S5773758A JP 14964880 A JP14964880 A JP 14964880A JP 14964880 A JP14964880 A JP 14964880A JP S5773758 A JPS5773758 A JP S5773758A
Authority
JP
Japan
Prior art keywords
screen
toner developer
image
modulation
photoreceptor
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
JP14964880A
Other languages
Japanese (ja)
Inventor
Noboru Narita
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 JP14964880A priority Critical patent/JPS5773758A/en
Priority to DE19813142120 priority patent/DE3142120C2/en
Priority to GB8132158A priority patent/GB2090015B/en
Publication of JPS5773758A publication Critical patent/JPS5773758A/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
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
    • 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
    • G03G15/05—Apparatus for electrographic processes using a charge pattern for imagewise charging, e.g. photoconductive control screen or optically activated charging means
    • G03G15/051—Apparatus for electrographic processes using a charge pattern for imagewise charging, e.g. photoconductive control screen or optically activated charging means by modulating an ion flow through a photoconductive screen onto which a charge image has been formed

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)

Abstract

PURPOSE:To improve the durability of a screen-shaped photoreceptor by stabilizing its modulation characteristics by preventing the screen from being stained, by giving the surface potential of the photoreceptor the same polarity with the potential of toner developer fine grains after the completion of modulation. CONSTITUTION:On a drum-shaped screen 13 turning as shown by the arrow, a latent image of an original is formed by a primary latent-image forming means 14, and the image is transferred to an insulating drum 16 turning as shown by another arrow; and the obtained secondary latent image is developed by a developing means 17 with a toner developer (charged coloring fine grains), and then transferred to a transfer material 23, thus obtaining a copy image of the original. In the said device, a corona discharger 24 is arranged for the screen 13, which after modulation ends, is charged with the same polarity with the toner developer, thus preventing the toner developer from sticking the screen.
JP14964880A 1980-10-24 1980-10-24 Protector for screen-shaped photoreceptor Pending JPS5773758A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP14964880A JPS5773758A (en) 1980-10-24 1980-10-24 Protector for screen-shaped photoreceptor
DE19813142120 DE3142120C2 (en) 1980-10-24 1981-10-23 Method and device for keeping a control grid clean from toner
GB8132158A GB2090015B (en) 1980-10-24 1981-10-26 Method and apparatus for protecting photosensitive screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14964880A JPS5773758A (en) 1980-10-24 1980-10-24 Protector for screen-shaped photoreceptor

Publications (1)

Publication Number Publication Date
JPS5773758A true JPS5773758A (en) 1982-05-08

Family

ID=15479810

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14964880A Pending JPS5773758A (en) 1980-10-24 1980-10-24 Protector for screen-shaped photoreceptor

Country Status (3)

Country Link
JP (1) JPS5773758A (en)
DE (1) DE3142120C2 (en)
GB (1) GB2090015B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6319296B1 (en) 1999-08-13 2001-11-20 Alliedsignal Truck Brake Systems Company Air system bypass for oil separator
USD945810S1 (en) * 2019-06-28 2022-03-15 Malcolm Fontier Coffee-making kit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1480841A (en) * 1973-06-19 1977-07-27 Canon Kk Electrophotography
JPS5276036A (en) * 1975-12-22 1977-06-25 Canon Inc Method for image formation
GB1603181A (en) * 1977-03-26 1981-11-18 Canon Kk Copying or printing apparatus

Also Published As

Publication number Publication date
GB2090015B (en) 1985-06-12
GB2090015A (en) 1982-06-30
DE3142120C2 (en) 1986-04-24
DE3142120A1 (en) 1982-05-13

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