JPS57120970A - Process control system of electrophotographic printer - Google Patents

Process control system of electrophotographic printer

Info

Publication number
JPS57120970A
JPS57120970A JP56006658A JP665881A JPS57120970A JP S57120970 A JPS57120970 A JP S57120970A JP 56006658 A JP56006658 A JP 56006658A JP 665881 A JP665881 A JP 665881A JP S57120970 A JPS57120970 A JP S57120970A
Authority
JP
Japan
Prior art keywords
mark
photoreceptor
joint
control system
detection
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
JP56006658A
Other languages
Japanese (ja)
Inventor
Shigeru Yamazaki
Masakazu Niro
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 JP56006658A priority Critical patent/JPS57120970A/en
Publication of JPS57120970A publication Critical patent/JPS57120970A/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
    • G03G21/14—Electronic sequencing control
    • G03G21/145—Electronic sequencing control wherein control pulses are generated by the mechanical movement of parts of the machine, e.g. the photoconductor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To form always an image from a prescribed position independently of the stop position and the slippage of a photoreceptor, by putting a mark on the belt-shaped photoreceptor having a joint and by starting the process after detecting the mark. CONSTITUTION:A mark M is put on a part of a belt-shaped photoreceptor 4 which is stretched between a driving roller 1 and an idle roller 2 and has a joint 3, and a detecting sensor 5 is provided. In this constitution, the time from the start of driving of the roller 1 to the detection of the mark M is ineffective, and the process is started by the time elapse from the detection of the mark M. Thus, since the process is started on a basis of the detection time of the mark M independently of the position of the joint 3 and the slippage between the photoreceptor 4 and rollers 1 and 2, an image is always formed from a prescribed position of the photoreceptor 4.
JP56006658A 1981-01-20 1981-01-20 Process control system of electrophotographic printer Pending JPS57120970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56006658A JPS57120970A (en) 1981-01-20 1981-01-20 Process control system of electrophotographic printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56006658A JPS57120970A (en) 1981-01-20 1981-01-20 Process control system of electrophotographic printer

Publications (1)

Publication Number Publication Date
JPS57120970A true JPS57120970A (en) 1982-07-28

Family

ID=11644468

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56006658A Pending JPS57120970A (en) 1981-01-20 1981-01-20 Process control system of electrophotographic printer

Country Status (1)

Country Link
JP (1) JPS57120970A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59212853A (en) * 1983-05-18 1984-12-01 Fuji Xerox Co Ltd Abnormality detector of copying machine
JPS59212852A (en) * 1983-05-18 1984-12-01 Fuji Xerox Co Ltd Abnormality detector of copying machine
JPS6064374A (en) * 1983-09-20 1985-04-12 Ricoh Co Ltd Image formation positioning system of photosensitive belt
JPS62150267A (en) * 1985-12-24 1987-07-04 Ricoh Co Ltd Device for controlling stop position of belt-like photosensitive body
US5341194A (en) * 1989-11-07 1994-08-23 Konica Corporation Belt type image forming unit
JP2001134000A (en) * 1999-11-05 2001-05-18 Mitsubishi Chemicals Corp Endless belt-shaped electrophotographic photoreceptor
EP1432230A2 (en) * 2002-12-20 2004-06-23 Ricoh Company, Ltd. Belt driver, image forming apparatus, and method that can reduce the time until speed control of a belt is provided

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59212853A (en) * 1983-05-18 1984-12-01 Fuji Xerox Co Ltd Abnormality detector of copying machine
JPS59212852A (en) * 1983-05-18 1984-12-01 Fuji Xerox Co Ltd Abnormality detector of copying machine
JPS6064374A (en) * 1983-09-20 1985-04-12 Ricoh Co Ltd Image formation positioning system of photosensitive belt
JPS62150267A (en) * 1985-12-24 1987-07-04 Ricoh Co Ltd Device for controlling stop position of belt-like photosensitive body
US5341194A (en) * 1989-11-07 1994-08-23 Konica Corporation Belt type image forming unit
JP2001134000A (en) * 1999-11-05 2001-05-18 Mitsubishi Chemicals Corp Endless belt-shaped electrophotographic photoreceptor
EP1432230A2 (en) * 2002-12-20 2004-06-23 Ricoh Company, Ltd. Belt driver, image forming apparatus, and method that can reduce the time until speed control of a belt is provided
EP1432230A3 (en) * 2002-12-20 2005-03-30 Ricoh Company, Ltd. Belt driver, image forming apparatus, and method that can reduce the time until speed control of a belt is provided
US7133627B2 (en) 2002-12-20 2006-11-07 Ricoh Company, Ltd. Belt driver, image forming apparatus, and method that can reduce the time until speed control of a belt is performed

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