JPS56106256A - Exposure device of electrophotographic copier - Google Patents

Exposure device of electrophotographic copier

Info

Publication number
JPS56106256A
JPS56106256A JP893280A JP893280A JPS56106256A JP S56106256 A JPS56106256 A JP S56106256A JP 893280 A JP893280 A JP 893280A JP 893280 A JP893280 A JP 893280A JP S56106256 A JPS56106256 A JP S56106256A
Authority
JP
Japan
Prior art keywords
light source
reflector
original
plate
exposure device
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
JP893280A
Other languages
Japanese (ja)
Inventor
Kohachi Uchida
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP893280A priority Critical patent/JPS56106256A/en
Publication of JPS56106256A publication Critical patent/JPS56106256A/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
    • G03G15/04036—Details of illuminating systems, e.g. lamps, reflectors
    • 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
    • G03G15/043—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 controlling illumination or exposure

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)

Abstract

PURPOSE:To simplify a control circuit and to make a halogen lamp unnecessary, by providig a mobile part for controllig light quantity from a light source at least on one part of a reflective plate provided in the light source, and enabling the light quantity from the light source to be optionally adjusted. CONSTITUTION:Light source 20 having reflective plate 19 is provided in exposure device 18 of a copier, and scans original 15 moving together with original platen 14. Plate 19 consists of fixed refector 24 and mobile reflector 29, and one side of reflector 29 is fixed to drive shaft 31 having a dial 30. The openig angle of plate 19 can be changed by rotating dial 30 and turning reflector 29 in the direction of arrows (a) or (b), thus permitting illumination quantity to be controlled in accordance with density of original 15.
JP893280A 1980-01-29 1980-01-29 Exposure device of electrophotographic copier Pending JPS56106256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP893280A JPS56106256A (en) 1980-01-29 1980-01-29 Exposure device of electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP893280A JPS56106256A (en) 1980-01-29 1980-01-29 Exposure device of electrophotographic copier

Publications (1)

Publication Number Publication Date
JPS56106256A true JPS56106256A (en) 1981-08-24

Family

ID=11706430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP893280A Pending JPS56106256A (en) 1980-01-29 1980-01-29 Exposure device of electrophotographic copier

Country Status (1)

Country Link
JP (1) JPS56106256A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62188756U (en) * 1986-05-20 1987-12-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62188756U (en) * 1986-05-20 1987-12-01

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