JPS57207269A - Copying machine having two drums - Google Patents

Copying machine having two drums

Info

Publication number
JPS57207269A
JPS57207269A JP9200981A JP9200981A JPS57207269A JP S57207269 A JPS57207269 A JP S57207269A JP 9200981 A JP9200981 A JP 9200981A JP 9200981 A JP9200981 A JP 9200981A JP S57207269 A JPS57207269 A JP S57207269A
Authority
JP
Japan
Prior art keywords
lens
drum
illuminator
reflecting mirror
memory
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.)
Granted
Application number
JP9200981A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0332064B2 (enrdf_load_stackoverflow
Inventor
Ryota Ogawa
Michio Oishi
Yasunori Arai
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP9200981A priority Critical patent/JPS57207269A/ja
Priority to US06/304,469 priority patent/US4400080A/en
Priority to GB8128867A priority patent/GB2087574B/en
Priority to DE3138037A priority patent/DE3138037C2/de
Publication of JPS57207269A publication Critical patent/JPS57207269A/ja
Publication of JPH0332064B2 publication Critical patent/JPH0332064B2/ja
Granted 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
    • 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
    • G03G15/0435—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 by introducing an optical element in the optical path, e.g. a filter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Projection-Type Copiers In General (AREA)
JP9200981A 1980-09-24 1981-06-15 Copying machine having two drums Granted JPS57207269A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP9200981A JPS57207269A (en) 1981-06-15 1981-06-15 Copying machine having two drums
US06/304,469 US4400080A (en) 1980-09-24 1981-09-22 Two-drum type copying machine having improved illumination efficiency
GB8128867A GB2087574B (en) 1980-09-24 1981-09-24 Line-by-line photocopying
DE3138037A DE3138037C2 (de) 1980-09-24 1981-09-24 Elektrofotografisches Kopiergerät

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9200981A JPS57207269A (en) 1981-06-15 1981-06-15 Copying machine having two drums

Publications (2)

Publication Number Publication Date
JPS57207269A true JPS57207269A (en) 1982-12-18
JPH0332064B2 JPH0332064B2 (enrdf_load_stackoverflow) 1991-05-09

Family

ID=14042463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9200981A Granted JPS57207269A (en) 1980-09-24 1981-06-15 Copying machine having two drums

Country Status (1)

Country Link
JP (1) JPS57207269A (enrdf_load_stackoverflow)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50122241A (enrdf_load_stackoverflow) * 1974-01-12 1975-09-25
JPS5341976A (en) * 1976-09-29 1978-04-15 Fujitsu Ltd Measuring method of thickness of semiconducjtor wafer
JPS54171340U (enrdf_load_stackoverflow) * 1978-05-23 1979-12-04

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50122241A (enrdf_load_stackoverflow) * 1974-01-12 1975-09-25
JPS5341976A (en) * 1976-09-29 1978-04-15 Fujitsu Ltd Measuring method of thickness of semiconducjtor wafer
JPS54171340U (enrdf_load_stackoverflow) * 1978-05-23 1979-12-04

Also Published As

Publication number Publication date
JPH0332064B2 (enrdf_load_stackoverflow) 1991-05-09

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