JPS578553A - Recording device - Google Patents

Recording device

Info

Publication number
JPS578553A
JPS578553A JP8226880A JP8226880A JPS578553A JP S578553 A JPS578553 A JP S578553A JP 8226880 A JP8226880 A JP 8226880A JP 8226880 A JP8226880 A JP 8226880A JP S578553 A JPS578553 A JP S578553A
Authority
JP
Japan
Prior art keywords
exposure
surface potential
potential sensor
copying
initial charging
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
JP8226880A
Other languages
Japanese (ja)
Inventor
Masayuki Hida
Junzo Nakajima
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8226880A priority Critical patent/JPS578553A/en
Publication of JPS578553A publication Critical patent/JPS578553A/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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5033—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor
    • G03G15/5037—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor the characteristics being an electrical parameter, e.g. voltage

Abstract

PURPOSE:To control initial charging quantity, copying exposure, and printing exposure with only one surface potential sensor, by installing a surface potential sensor after the final latent image forming means and providing a feedback controller for controlling a latent inage forming means in accordance with this output. CONSTITUTION:Driving and control circuits 14, 17, and 18 and connected to a corona charger 2 for initial charging of each latent image forming means, copying exposure means 3, 4, 51, 52, and a printing exposure means OFT 6, respectively. A surface potential sensor 21 is installed near a photosensitive drum 1 after the OFT 6, a final exposure level is detected with a detection circuit 22, this is separated into 3 values with a separation circuit 23, compared with each reference value with comparation circuits 241, 242, 243, each difference is sent through an amplifier to a control circuit in the corresponding driving and control circuit 14, 17, 18 and thus the levels of the exposure device, etc. are corrected. The above-mentioned meth od permits initial charging quantity and exposures for copying and printing to be controlled with one surface potential sensor.
JP8226880A 1980-06-18 1980-06-18 Recording device Pending JPS578553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8226880A JPS578553A (en) 1980-06-18 1980-06-18 Recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8226880A JPS578553A (en) 1980-06-18 1980-06-18 Recording device

Publications (1)

Publication Number Publication Date
JPS578553A true JPS578553A (en) 1982-01-16

Family

ID=13769730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8226880A Pending JPS578553A (en) 1980-06-18 1980-06-18 Recording device

Country Status (1)

Country Link
JP (1) JPS578553A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562130A (en) * 1982-09-28 1985-12-31 Minolta Camera Kabushiki Kaisha Method of forming composite images
US4562129A (en) * 1982-09-28 1985-12-31 Minolta Camera Kabushiki Kaisha Method of forming monochromatic or dichromatic copy images
US4640883A (en) * 1983-11-30 1987-02-03 Minolta Camera Kabushiki Kaisha Method of forming composite or dichromatic images

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562130A (en) * 1982-09-28 1985-12-31 Minolta Camera Kabushiki Kaisha Method of forming composite images
US4562129A (en) * 1982-09-28 1985-12-31 Minolta Camera Kabushiki Kaisha Method of forming monochromatic or dichromatic copy images
US4640883A (en) * 1983-11-30 1987-02-03 Minolta Camera Kabushiki Kaisha Method of forming composite or dichromatic images

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