JPS5737357A - Method for adjusting electrophotographic image - Google Patents

Method for adjusting electrophotographic image

Info

Publication number
JPS5737357A
JPS5737357A JP11419680A JP11419680A JPS5737357A JP S5737357 A JPS5737357 A JP S5737357A JP 11419680 A JP11419680 A JP 11419680A JP 11419680 A JP11419680 A JP 11419680A JP S5737357 A JPS5737357 A JP S5737357A
Authority
JP
Japan
Prior art keywords
photoreceptor
preexposure
width
light
ghost
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
JP11419680A
Other languages
Japanese (ja)
Inventor
Wahei Tokuda
Kenzo Takayama
Tatsuo Negishi
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 JP11419680A priority Critical patent/JPS5737357A/en
Publication of JPS5737357A publication Critical patent/JPS5737357A/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
    • G03G21/06—Eliminating residual charges from a reusable imaging member
    • G03G21/08—Eliminating residual charges from a reusable imaging member using optical radiation

Landscapes

  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To prevent either positive or negative ghost, by extending exposure width of a photoreceptor at preexposure to be operated before a charging step, and changing a light intensity in accordance with the memory characteristics of a photoreceptor. CONSTITUTION:Preexposure is conducted with a remaining charge erasion lamp 9 before charging the photoreceptor of a photosensitive drum 1 with a primary charger in order to remove an after image effect of the photoreceptor, and a few kinds of plates different from one another in light transmittance are provided as controlling plates 11 between the lamp 9 and the drum 1 to select them in accordance with the photoreceptor. A positive ghost tends to occur in strong preexposure, but it can be erased by weakening the light. Preexposure width of the photoreceptor is preferably made equal to the whole width of a predestaticizer 10 or the width A+B, thus permitting an image freed of a ghost and a fringe effect to be obtaned by extending an exposing time even when the light is weak.
JP11419680A 1980-08-19 1980-08-19 Method for adjusting electrophotographic image Pending JPS5737357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11419680A JPS5737357A (en) 1980-08-19 1980-08-19 Method for adjusting electrophotographic image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11419680A JPS5737357A (en) 1980-08-19 1980-08-19 Method for adjusting electrophotographic image

Publications (1)

Publication Number Publication Date
JPS5737357A true JPS5737357A (en) 1982-03-01

Family

ID=14631599

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11419680A Pending JPS5737357A (en) 1980-08-19 1980-08-19 Method for adjusting electrophotographic image

Country Status (1)

Country Link
JP (1) JPS5737357A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114568A (en) * 1982-12-21 1984-07-02 Canon Inc Electrophotographic method
JPS62146183U (en) * 1986-03-11 1987-09-16
JP2010049190A (en) * 2008-08-25 2010-03-04 Ricoh Co Ltd Electrophotographic image forming apparatus
JP2016031527A (en) * 2014-07-25 2016-03-07 株式会社リコー Image forming apparatus
JP2016114686A (en) * 2014-12-12 2016-06-23 株式会社リコー Charging device, imaging unit, and image forming apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114568A (en) * 1982-12-21 1984-07-02 Canon Inc Electrophotographic method
JPS62146183U (en) * 1986-03-11 1987-09-16
JP2010049190A (en) * 2008-08-25 2010-03-04 Ricoh Co Ltd Electrophotographic image forming apparatus
JP2016031527A (en) * 2014-07-25 2016-03-07 株式会社リコー Image forming apparatus
JP2016114686A (en) * 2014-12-12 2016-06-23 株式会社リコー Charging device, imaging unit, and image forming apparatus

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