JPS57181561A - Picture adjusting device - Google Patents

Picture adjusting device

Info

Publication number
JPS57181561A
JPS57181561A JP56067427A JP6742781A JPS57181561A JP S57181561 A JPS57181561 A JP S57181561A JP 56067427 A JP56067427 A JP 56067427A JP 6742781 A JP6742781 A JP 6742781A JP S57181561 A JPS57181561 A JP S57181561A
Authority
JP
Japan
Prior art keywords
picture
electrometer
carrier
power source
electrode
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
JP56067427A
Other languages
Japanese (ja)
Inventor
Tsutomu Imai
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 JP56067427A priority Critical patent/JPS57181561A/en
Publication of JPS57181561A publication Critical patent/JPS57181561A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To make the state of the picture of copies easily changeable by providing an electrode for adjustment to an electrometer which measures the potential in the bright part in a carrier for electrostatic latent images. CONSTITUTION:An electrode Ec for adjustment is provided between a detecting electrode Ed of an electrometer EM and a carrier 1 for electrostatic latent images. While the movable contact (d) of a selection switch SW is at a fixed contact (a), this device operates as a picture adjusting device which is automatically controlled in accordance with the measured value of the potential in the bright parts in the prescribed part on the carrier. If the contact (d) is changed over to a fixed contact (b), and a variable electric power source V is regulated, the output value from the electrometer EM changes depending upon the voltage value set by an electric power source V. It is possible to change the state of the picture of copies easily by regulating the power source V according to the picture contents of the original.
JP56067427A 1981-05-05 1981-05-05 Picture adjusting device Pending JPS57181561A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56067427A JPS57181561A (en) 1981-05-05 1981-05-05 Picture adjusting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56067427A JPS57181561A (en) 1981-05-05 1981-05-05 Picture adjusting device

Publications (1)

Publication Number Publication Date
JPS57181561A true JPS57181561A (en) 1982-11-09

Family

ID=13344598

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56067427A Pending JPS57181561A (en) 1981-05-05 1981-05-05 Picture adjusting device

Country Status (1)

Country Link
JP (1) JPS57181561A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60103364A (en) * 1983-11-11 1985-06-07 Fuji Xerox Co Ltd Abnormality detector for electrostatic electrometer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60103364A (en) * 1983-11-11 1985-06-07 Fuji Xerox Co Ltd Abnormality detector for electrostatic electrometer

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