JPS5711364A - Exposure setting device - Google Patents

Exposure setting device

Info

Publication number
JPS5711364A
JPS5711364A JP8623180A JP8623180A JPS5711364A JP S5711364 A JPS5711364 A JP S5711364A JP 8623180 A JP8623180 A JP 8623180A JP 8623180 A JP8623180 A JP 8623180A JP S5711364 A JPS5711364 A JP S5711364A
Authority
JP
Japan
Prior art keywords
exposure
original
density
setting
microcomputer
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
JP8623180A
Other languages
Japanese (ja)
Inventor
Kozo Matsuyama
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 JP8623180A priority Critical patent/JPS5711364A/en
Publication of JPS5711364A publication Critical patent/JPS5711364A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/04Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/043Apparatus 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)
  • Control Of Exposure In Printing And Copying (AREA)

Abstract

PURPOSE:To set up the quantity of exposure corresponding to the density of an original easily and precisely by shifting and setting the quantity of exposure in stages according to the set operation through a microcomputer to display. CONSTITUTION:The setting resistances 32-36 of an A/D converter 40 are selected through a microcomputer 21 according to the number of times of operation of light setting buttons 11 and 12 corresponding to the density of an original and the quantity of exposure changing in stages is set up as a digital value. Since the emitting diode 43 which forms the photocoupler 42 of a standard voltage generating circuit 57 controlling an exposure lamp is controlled, the original on a copying machine is exposed according to the set value. Simultaneously, any one of LED13-17 is selected and lights according to the set quantity of exposure via a computer 21, so that the set quantity of exposure is displayed. Thus, the quantity of exposure corresponding to the density of the original is precisely set up by the simple operation.
JP8623180A 1980-06-25 1980-06-25 Exposure setting device Pending JPS5711364A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8623180A JPS5711364A (en) 1980-06-25 1980-06-25 Exposure setting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8623180A JPS5711364A (en) 1980-06-25 1980-06-25 Exposure setting device

Publications (1)

Publication Number Publication Date
JPS5711364A true JPS5711364A (en) 1982-01-21

Family

ID=13881012

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8623180A Pending JPS5711364A (en) 1980-06-25 1980-06-25 Exposure setting device

Country Status (1)

Country Link
JP (1) JPS5711364A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58175531U (en) * 1982-05-18 1983-11-24 コピア株式会社 Diazo copying machine with automatic printing level display means
JPS5975240A (en) * 1982-10-24 1984-04-27 Copyer Co Ltd Ziazo copying machine with automatic printing level display means
JPS60163039A (en) * 1984-02-03 1985-08-24 Mita Ind Co Ltd Exposure quantity setting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58175531U (en) * 1982-05-18 1983-11-24 コピア株式会社 Diazo copying machine with automatic printing level display means
JPS5975240A (en) * 1982-10-24 1984-04-27 Copyer Co Ltd Ziazo copying machine with automatic printing level display means
JPS60163039A (en) * 1984-02-03 1985-08-24 Mita Ind Co Ltd Exposure quantity setting device

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