JPS64968A - Exposure amount setting device - Google Patents

Exposure amount setting device

Info

Publication number
JPS64968A
JPS64968A JP62156752A JP15675287A JPS64968A JP S64968 A JPS64968 A JP S64968A JP 62156752 A JP62156752 A JP 62156752A JP 15675287 A JP15675287 A JP 15675287A JP S64968 A JPS64968 A JP S64968A
Authority
JP
Japan
Prior art keywords
original
photograph
copy
potential
photographing mode
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
JP62156752A
Other languages
Japanese (ja)
Other versions
JPH01968A (en
Inventor
Hiroshi Sasaki
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP62156752A priority Critical patent/JPS64968A/en
Publication of JPH01968A publication Critical patent/JPH01968A/en
Publication of JPS64968A publication Critical patent/JPS64968A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE: To accurately copy original such as photograph and picture by automatically setting a manual exposure mode when a photographing mode is set.
CONSTITUTION: When original having halftone as photograph and picture is copied, a photograph/document switching key 85 is operated to set the photographing mode and afterward, a print switch 86 is operated to copy the original. When the photographing mode is set, an electrifying potential of a photosensitive body 3 by an electrifyer 4, the bias potential of a developing roller 51 and the exposure amount of an exposure lamp 71 are set to prescribed potentials and amounts to copy the original. Namely, the electrifying potential of the photosensitive body 3 and the bias potential of the developing roller 51 are set for photographing and simultaneously the exposure lamp 71 is set to a fixed value to eliminate the fluctuation of original density. Thus, copied image is hardly whitened to be reproduced accurately.
COPYRIGHT: (C)1989,JPO&Japio
JP62156752A 1987-06-24 1987-06-24 Exposure amount setting device Pending JPS64968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62156752A JPS64968A (en) 1987-06-24 1987-06-24 Exposure amount setting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62156752A JPS64968A (en) 1987-06-24 1987-06-24 Exposure amount setting device

Publications (2)

Publication Number Publication Date
JPH01968A JPH01968A (en) 1989-01-05
JPS64968A true JPS64968A (en) 1989-01-05

Family

ID=15634542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62156752A Pending JPS64968A (en) 1987-06-24 1987-06-24 Exposure amount setting device

Country Status (1)

Country Link
JP (1) JPS64968A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH034247A (en) * 1989-05-31 1991-01-10 Toshiba Corp Surface potential controller for photosensitive body
JPH052307A (en) * 1990-07-26 1993-01-08 Canon Inc Image forming device
JP2001318562A (en) * 2001-04-26 2001-11-16 Fuji Xerox Co Ltd Image forming device
JP2002079726A (en) * 2000-06-28 2002-03-19 Katsuragawa Electric Co Ltd Imaging device
JP2007010933A (en) * 2005-06-30 2007-01-18 Konica Minolta Business Technologies Inc Image forming apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5720765A (en) * 1980-07-15 1982-02-03 Ricoh Co Ltd Controller for copying
JPS6134564A (en) * 1984-07-26 1986-02-18 Fuji Xerox Co Ltd Electrostatic recoder
JPS6161143A (en) * 1984-08-31 1986-03-28 Sharp Corp Exposure quantity adjusting system of copying machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5720765A (en) * 1980-07-15 1982-02-03 Ricoh Co Ltd Controller for copying
JPS6134564A (en) * 1984-07-26 1986-02-18 Fuji Xerox Co Ltd Electrostatic recoder
JPS6161143A (en) * 1984-08-31 1986-03-28 Sharp Corp Exposure quantity adjusting system of copying machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH034247A (en) * 1989-05-31 1991-01-10 Toshiba Corp Surface potential controller for photosensitive body
JPH052307A (en) * 1990-07-26 1993-01-08 Canon Inc Image forming device
JP2002079726A (en) * 2000-06-28 2002-03-19 Katsuragawa Electric Co Ltd Imaging device
JP2001318562A (en) * 2001-04-26 2001-11-16 Fuji Xerox Co Ltd Image forming device
JP2007010933A (en) * 2005-06-30 2007-01-18 Konica Minolta Business Technologies Inc Image forming apparatus

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