JPS578554A - Method for forming image with copying machine - Google Patents

Method for forming image with copying machine

Info

Publication number
JPS578554A
JPS578554A JP8329880A JP8329880A JPS578554A JP S578554 A JPS578554 A JP S578554A JP 8329880 A JP8329880 A JP 8329880A JP 8329880 A JP8329880 A JP 8329880A JP S578554 A JPS578554 A JP S578554A
Authority
JP
Japan
Prior art keywords
time
paper
transfer paper
charger
photosensor
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
JP8329880A
Other languages
Japanese (ja)
Inventor
Kazuyuki Kato
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 JP8329880A priority Critical patent/JPS578554A/en
Publication of JPS578554A publication Critical patent/JPS578554A/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
    • G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
    • G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To prevent wrinkling and jamming of a transfer paper perfectly, by providing nonimaging regions, forming no toner image, on both the front and rear ends of the transfer paper. CONSTITUTION:A photosensor S2 detects the front end of a transfer paper and a timer T1 turns on a charger 18 through a flip-flop FF and high voltage generators P, P after a time t1 and starts charging. The photosensor S2 detects the rear end of the paper and at that time the timer T2 resets the flip-flop FF after a time t2 to turn off the charger 18. These times t1, t2 of the timers T1, T2 are regulated to t1>t2, thus permitting the operation time of the charger 18 to become a remainder obtained by subtracting t1-t2 from the time of detecting the paper, therefore, the front and rear ends of the transfer paper of a length corresponding to this value to become whited out or nonimaged parts, and wrinkling and jamming of the paper to be prevented.
JP8329880A 1980-06-19 1980-06-19 Method for forming image with copying machine Pending JPS578554A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8329880A JPS578554A (en) 1980-06-19 1980-06-19 Method for forming image with copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8329880A JPS578554A (en) 1980-06-19 1980-06-19 Method for forming image with copying machine

Publications (1)

Publication Number Publication Date
JPS578554A true JPS578554A (en) 1982-01-16

Family

ID=13798489

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8329880A Pending JPS578554A (en) 1980-06-19 1980-06-19 Method for forming image with copying machine

Country Status (1)

Country Link
JP (1) JPS578554A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5778573A (en) * 1980-11-05 1982-05-17 Toshiba Corp Copier
JPS59204863A (en) * 1983-05-09 1984-11-20 Konishiroku Photo Ind Co Ltd Electrostatic recording device
JPS617856A (en) * 1984-06-21 1986-01-14 Dainippon Screen Mfg Co Ltd Method and device for shifting of copying image position in electrophotographic copying device
JPS6234176A (en) * 1985-08-08 1987-02-14 Casio Comput Co Ltd Printing device
JPS6234174A (en) * 1985-08-05 1987-02-14 オセ−ネ−デルランド・ベ−・ヴエ− Copying equipment with adjustable margin setting means
JPS6240480A (en) * 1985-08-16 1987-02-21 Konishiroku Photo Ind Co Ltd Image recording device
JPS63202762A (en) * 1987-02-19 1988-08-22 Canon Inc Image forming device
JPS63318578A (en) * 1987-06-22 1988-12-27 Ricoh Co Ltd Erasing control system for copying machine
US5099283A (en) * 1987-11-28 1992-03-24 Canon Kabushiki Kaisha Electrophotographic apparatus with leading edge blanking
US5450170A (en) * 1989-12-29 1995-09-12 Canon Kabushiki Kaisha Image forming apparatus having transfer means
JP2003058015A (en) * 2001-08-10 2003-02-28 Katsuragawa Electric Co Ltd Image forming device
JP2012137524A (en) * 2010-12-24 2012-07-19 Brother Ind Ltd Image forming apparatus

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49133038A (en) * 1973-04-24 1974-12-20
JPS502548A (en) * 1973-05-08 1975-01-11
JPS5033841A (en) * 1973-07-24 1975-04-01
JPS53127724A (en) * 1977-04-14 1978-11-08 Ricoh Co Ltd Preventing method for unnecessary black solid parts in transfer type copier
JPS5443742A (en) * 1977-08-30 1979-04-06 Xerox Corp Both sides copy fabricating method and apparatus
JPS5468636A (en) * 1977-11-12 1979-06-01 Ricoh Co Ltd Copying method for double-faced copier
JPS5492261A (en) * 1977-12-29 1979-07-21 Konishiroku Photo Ind Co Ltd Destaticizing device in electrophotographic copier
JPS54134638A (en) * 1978-04-11 1979-10-19 Ricoh Co Ltd Electrophotographic copying process

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49133038A (en) * 1973-04-24 1974-12-20
JPS502548A (en) * 1973-05-08 1975-01-11
JPS5033841A (en) * 1973-07-24 1975-04-01
JPS53127724A (en) * 1977-04-14 1978-11-08 Ricoh Co Ltd Preventing method for unnecessary black solid parts in transfer type copier
JPS5443742A (en) * 1977-08-30 1979-04-06 Xerox Corp Both sides copy fabricating method and apparatus
JPS5468636A (en) * 1977-11-12 1979-06-01 Ricoh Co Ltd Copying method for double-faced copier
JPS5492261A (en) * 1977-12-29 1979-07-21 Konishiroku Photo Ind Co Ltd Destaticizing device in electrophotographic copier
JPS54134638A (en) * 1978-04-11 1979-10-19 Ricoh Co Ltd Electrophotographic copying process

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6358356B2 (en) * 1980-11-05 1988-11-15 Tokyo Shibaura Electric Co
JPS5778573A (en) * 1980-11-05 1982-05-17 Toshiba Corp Copier
JPS59204863A (en) * 1983-05-09 1984-11-20 Konishiroku Photo Ind Co Ltd Electrostatic recording device
JPS617856A (en) * 1984-06-21 1986-01-14 Dainippon Screen Mfg Co Ltd Method and device for shifting of copying image position in electrophotographic copying device
JPS6234174A (en) * 1985-08-05 1987-02-14 オセ−ネ−デルランド・ベ−・ヴエ− Copying equipment with adjustable margin setting means
JPS6234176A (en) * 1985-08-08 1987-02-14 Casio Comput Co Ltd Printing device
JPS6240480A (en) * 1985-08-16 1987-02-21 Konishiroku Photo Ind Co Ltd Image recording device
JPS63202762A (en) * 1987-02-19 1988-08-22 Canon Inc Image forming device
JPS63318578A (en) * 1987-06-22 1988-12-27 Ricoh Co Ltd Erasing control system for copying machine
US5099283A (en) * 1987-11-28 1992-03-24 Canon Kabushiki Kaisha Electrophotographic apparatus with leading edge blanking
US5450170A (en) * 1989-12-29 1995-09-12 Canon Kabushiki Kaisha Image forming apparatus having transfer means
JP2003058015A (en) * 2001-08-10 2003-02-28 Katsuragawa Electric Co Ltd Image forming device
JP2012137524A (en) * 2010-12-24 2012-07-19 Brother Ind Ltd Image forming apparatus
US8750742B2 (en) 2010-12-24 2014-06-10 Brother Kogyo Kabushiki Kaisha Image forming apparatus

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