JPS56128962A - Latent image forming method of variable magnification device - Google Patents

Latent image forming method of variable magnification device

Info

Publication number
JPS56128962A
JPS56128962A JP3226080A JP3226080A JPS56128962A JP S56128962 A JPS56128962 A JP S56128962A JP 3226080 A JP3226080 A JP 3226080A JP 3226080 A JP3226080 A JP 3226080A JP S56128962 A JPS56128962 A JP S56128962A
Authority
JP
Japan
Prior art keywords
potential
photoreceptor
latent image
variable magnification
values
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.)
Granted
Application number
JP3226080A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0318183B2 (enrdf_load_stackoverflow
Inventor
Hiroaki Tsuchiya
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP3226080A priority Critical patent/JPS56128962A/ja
Priority to GB8107988A priority patent/GB2075224B/en
Priority to DE19813109812 priority patent/DE3109812A1/de
Publication of JPS56128962A publication Critical patent/JPS56128962A/ja
Priority to US06/459,690 priority patent/US4480909A/en
Publication of JPH0318183B2 publication Critical patent/JPH0318183B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/02Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0266Arrangements for controlling the amount of charge
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/02Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0291Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices corona discharge devices, e.g. wires, pointed electrodes, means for cleaning the corona discharge device

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Control Or Security For Electrophotography (AREA)
JP3226080A 1980-03-13 1980-03-13 Latent image forming method of variable magnification device Granted JPS56128962A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP3226080A JPS56128962A (en) 1980-03-13 1980-03-13 Latent image forming method of variable magnification device
GB8107988A GB2075224B (en) 1980-03-13 1981-03-13 Potential control in electrophotographic process
DE19813109812 DE3109812A1 (de) 1980-03-13 1981-03-13 "elektrofotografisches verfahren"
US06/459,690 US4480909A (en) 1980-03-13 1983-01-20 Potential control on photosensitive member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3226080A JPS56128962A (en) 1980-03-13 1980-03-13 Latent image forming method of variable magnification device

Publications (2)

Publication Number Publication Date
JPS56128962A true JPS56128962A (en) 1981-10-08
JPH0318183B2 JPH0318183B2 (enrdf_load_stackoverflow) 1991-03-11

Family

ID=12354034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3226080A Granted JPS56128962A (en) 1980-03-13 1980-03-13 Latent image forming method of variable magnification device

Country Status (1)

Country Link
JP (1) JPS56128962A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58208739A (ja) * 1982-05-31 1983-12-05 Canon Inc 画像形成装置
JPS61228468A (ja) * 1985-04-01 1986-10-11 Mitsubishi Electric Corp 電子写真装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3105426A (en) * 1960-04-04 1963-10-01 Xerox Corp Xerographic apparatus
JPS53105230A (en) * 1977-02-25 1978-09-13 Ricoh Co Ltd Optimum maintaining method of electrophotographical duplication images
JPS53123132A (en) * 1977-04-04 1978-10-27 Ricoh Co Ltd Compensation for registration of magnifying copying machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3105426A (en) * 1960-04-04 1963-10-01 Xerox Corp Xerographic apparatus
JPS53105230A (en) * 1977-02-25 1978-09-13 Ricoh Co Ltd Optimum maintaining method of electrophotographical duplication images
JPS53123132A (en) * 1977-04-04 1978-10-27 Ricoh Co Ltd Compensation for registration of magnifying copying machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58208739A (ja) * 1982-05-31 1983-12-05 Canon Inc 画像形成装置
JPS61228468A (ja) * 1985-04-01 1986-10-11 Mitsubishi Electric Corp 電子写真装置

Also Published As

Publication number Publication date
JPH0318183B2 (enrdf_load_stackoverflow) 1991-03-11

Similar Documents

Publication Publication Date Title
JPS5497038A (en) Image density controller for zerographic copier
JPS53115233A (en) Control for electrophotogtaphic copier
JPS5393030A (en) Copying process control method of electrophotographic copying machine
JPS53136838A (en) Automatic controlling method of image quality in transfer type electrostatic copier
JPS57200054A (en) Picture forming device
JPS56128962A (en) Latent image forming method of variable magnification device
DE3567295D1 (en) Method and device for getting a predetermined value of potential by the illumination of electrostatically charged photoconductive layers
JPS5393835A (en) Copy picture quality controller of electrostatic copying machine
JPS56113160A (en) Electrophotographic method
JPS56113159A (en) Electrophotographic method
JPS5483437A (en) Electrophotographic copying apparatus
JPS5214422A (en) Automatic control method of exposure for the electrophotographic copying machine
JPS56138747A (en) Control method for potential of photoreceptor
JPS53102745A (en) Correcting method of degrees of fatigue of photosensitive body of electrophotographic copying machine
JPS5741671A (en) Copying device
JPS56113161A (en) Electrophotographic method
JPS57164739A (en) Copying apparatus
EP0103843A1 (en) Method of making color images
JPS5497034A (en) Image quality controller for electrostatic copier
JPS57664A (en) Image form
JPS5770551A (en) Copy image adjustment method
JPS54137340A (en) Characteristic deterioration compensating control device for photosensitive element of copier
JPS5722272A (en) Electrophotographic method
JPS5557858A (en) Transfer bias control method of electrophotographic copier
JPS5710170A (en) Electrophotography method