JPS5722276A - Detecting method for fatigue level of photoreceptor - Google Patents

Detecting method for fatigue level of photoreceptor

Info

Publication number
JPS5722276A
JPS5722276A JP9776780A JP9776780A JPS5722276A JP S5722276 A JPS5722276 A JP S5722276A JP 9776780 A JP9776780 A JP 9776780A JP 9776780 A JP9776780 A JP 9776780A JP S5722276 A JPS5722276 A JP S5722276A
Authority
JP
Japan
Prior art keywords
potential
pattern
detecting
photoreceptor
fatigue level
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
JP9776780A
Other languages
Japanese (ja)
Inventor
Yoshitaka Fujikawa
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 JP9776780A priority Critical patent/JPS5722276A/en
Publication of JPS5722276A publication Critical patent/JPS5722276A/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
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0094—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge fatigue treatment of the photoconductor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:The find an exhaustness of a photosensitive body by detecting an electric potential difference between a higher potential domain and a lower potential domain by use of a surface electrometer. CONSTITUTION:Two surface electrometers are disposed near the surface of a photosensitive drum 3 in front of a developing device 13 in order to detecting each one of surface potential of pattern latent images 22, 23. And, each one of the voltages of the pattern lat end images 22, 23 is detected by use of a surface electrometer 25 detecting a potential of a pattern latent image of a tint reference pattern 19. On this pattern latent image, its potential changes corresponding to a fatigue level of the photoreceptor of the drum 3 even if the others are in the same conditions.
JP9776780A 1980-07-17 1980-07-17 Detecting method for fatigue level of photoreceptor Pending JPS5722276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9776780A JPS5722276A (en) 1980-07-17 1980-07-17 Detecting method for fatigue level of photoreceptor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9776780A JPS5722276A (en) 1980-07-17 1980-07-17 Detecting method for fatigue level of photoreceptor

Publications (1)

Publication Number Publication Date
JPS5722276A true JPS5722276A (en) 1982-02-05

Family

ID=14201007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9776780A Pending JPS5722276A (en) 1980-07-17 1980-07-17 Detecting method for fatigue level of photoreceptor

Country Status (1)

Country Link
JP (1) JPS5722276A (en)

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