JPS557768A - Adjustment operating device of developing picture quality - Google Patents

Adjustment operating device of developing picture quality

Info

Publication number
JPS557768A
JPS557768A JP8113778A JP8113778A JPS557768A JP S557768 A JPS557768 A JP S557768A JP 8113778 A JP8113778 A JP 8113778A JP 8113778 A JP8113778 A JP 8113778A JP S557768 A JPS557768 A JP S557768A
Authority
JP
Japan
Prior art keywords
picture quality
primary charging
original
operating device
adjustment operating
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
JP8113778A
Other languages
Japanese (ja)
Inventor
Masahide Harada
Manabu Mochizuki
Kazuo Kobayashi
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP8113778A priority Critical patent/JPS557768A/en
Publication of JPS557768A publication Critical patent/JPS557768A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To set primary charging potential quantity at the adequate value based on the picture quality of the original, obtain always distinct visible images and improve the use efficiency of the copying machine as the operator operates the command means corresponding to the kinds of the picture quality of the original.
CONSTITUTION: A transformer 2 changeable to 3 stages of H, M, L is provided to the AC part of the power source circuit of a corona charger 1 for primary charging and the initial potentials to be generated in a photoreceptor 6 are set at M, H, L respectively by selectively operating the operating switches 3, 4, 5 for the characteristic setting modes A, B, C of the primary charging part and exposure part. The residual potential quantities at the respective modes A, B, C are formed at 200V, 220V, 150V respectively.
COPYRIGHT: (C)1980,JPO&Japio
JP8113778A 1978-07-04 1978-07-04 Adjustment operating device of developing picture quality Pending JPS557768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8113778A JPS557768A (en) 1978-07-04 1978-07-04 Adjustment operating device of developing picture quality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8113778A JPS557768A (en) 1978-07-04 1978-07-04 Adjustment operating device of developing picture quality

Publications (1)

Publication Number Publication Date
JPS557768A true JPS557768A (en) 1980-01-19

Family

ID=13738006

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8113778A Pending JPS557768A (en) 1978-07-04 1978-07-04 Adjustment operating device of developing picture quality

Country Status (1)

Country Link
JP (1) JPS557768A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS501213A (en) * 1973-05-12 1975-01-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS501213A (en) * 1973-05-12 1975-01-08

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