JPS57124756A - Illumination method for non-image-forming part - Google Patents

Illumination method for non-image-forming part

Info

Publication number
JPS57124756A
JPS57124756A JP1048781A JP1048781A JPS57124756A JP S57124756 A JPS57124756 A JP S57124756A JP 1048781 A JP1048781 A JP 1048781A JP 1048781 A JP1048781 A JP 1048781A JP S57124756 A JPS57124756 A JP S57124756A
Authority
JP
Japan
Prior art keywords
photoreceptor
peak
distribution
spectral
wave length
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
JP1048781A
Other languages
Japanese (ja)
Inventor
Masami Yokoyama
Tamotsu Umagome
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 JP1048781A priority Critical patent/JPS57124756A/en
Publication of JPS57124756A publication Critical patent/JPS57124756A/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
    • G03G15/047—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 for discharging non-image areas

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)

Abstract

PURPOSE:To prevent stray light due to reflection of a photoreceptor, by using a filter in which a peak of spectral transmission distribution is in existing near the wave length of the peak of spectral sensitivity distribution of the photoreceptor, in the removal of unnecessary charge of non-working part of the photoreceptor. CONSTITUTION:Light of lamps 7A, 7B is incident to a non-working part N of a photoreceptor 1 respectively via openings 10A, 6A or 10B, 6B. Filters 11A, 11B fitted to the openings 6A, 6B are filters which have a peak of spectral transmission distribution near the wave length of the peak of spectral sensitivity distribution of the photoreceptor. Thus, the peak of the spectral distribution of light radiating the non-working part N is closed relating to the wave length with the peak of the spectral sensitivity distribution of the photoreceptor, and illuminated light can be absorbed efficiently to the photoreceptor 1 at the non- working section N. Then, stray light due to reflection of the photoreceptor can be prevented.
JP1048781A 1981-01-27 1981-01-27 Illumination method for non-image-forming part Pending JPS57124756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1048781A JPS57124756A (en) 1981-01-27 1981-01-27 Illumination method for non-image-forming part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1048781A JPS57124756A (en) 1981-01-27 1981-01-27 Illumination method for non-image-forming part

Publications (1)

Publication Number Publication Date
JPS57124756A true JPS57124756A (en) 1982-08-03

Family

ID=11751521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1048781A Pending JPS57124756A (en) 1981-01-27 1981-01-27 Illumination method for non-image-forming part

Country Status (1)

Country Link
JP (1) JPS57124756A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61177475A (en) * 1985-02-01 1986-08-09 Canon Inc Lighting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61177475A (en) * 1985-02-01 1986-08-09 Canon Inc Lighting device

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