JPS5535331A - Transfer method of electrophotographic copier - Google Patents

Transfer method of electrophotographic copier

Info

Publication number
JPS5535331A
JPS5535331A JP10756578A JP10756578A JPS5535331A JP S5535331 A JPS5535331 A JP S5535331A JP 10756578 A JP10756578 A JP 10756578A JP 10756578 A JP10756578 A JP 10756578A JP S5535331 A JPS5535331 A JP S5535331A
Authority
JP
Japan
Prior art keywords
current
discharger
transfer
corona
flowing
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
JP10756578A
Other languages
Japanese (ja)
Inventor
Tomoyuki Yamaguchi
Kan Shiga
Hideya Furuta
Koji Yamanobe
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 JP10756578A priority Critical patent/JPS5535331A/en
Publication of JPS5535331A publication Critical patent/JPS5535331A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE: To perform reproduction of correct images by maintaining the corona current flowing in the a corona discharger for transfer always constant and controlling the toner transferred from photoreceptor to transfer paper to a constant quantity at the set value of transfer voltage.
CONSTITUTION: A detector 23 receives the current IT flowing in the charge wire 5A of a corona discharger 5 for transfer from a power source 20 and the current IC flowing simultaneously in the casing 5B of the discharger 5 as its 2 inputs and detects the difference between said both current values. The output of the detector 23 is inputted to a comparing amplifier 22, where it is compared with a reference value E0. The output of the comparing amplifier 22 is inputted to a controller 21, and the current of the discharger 5 is so corrected and controlled by this controller 21 as to return to the state at the original corona discharge current.
COPYRIGHT: (C)1980,JPO&Japio
JP10756578A 1978-09-04 1978-09-04 Transfer method of electrophotographic copier Pending JPS5535331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10756578A JPS5535331A (en) 1978-09-04 1978-09-04 Transfer method of electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10756578A JPS5535331A (en) 1978-09-04 1978-09-04 Transfer method of electrophotographic copier

Publications (1)

Publication Number Publication Date
JPS5535331A true JPS5535331A (en) 1980-03-12

Family

ID=14462381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10756578A Pending JPS5535331A (en) 1978-09-04 1978-09-04 Transfer method of electrophotographic copier

Country Status (1)

Country Link
JP (1) JPS5535331A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57182761A (en) * 1981-05-05 1982-11-10 Ricoh Co Ltd Corona discharging device
JPS60144765A (en) * 1984-01-07 1985-07-31 Ricoh Co Ltd Transfer control method of multicolor copying method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51131635A (en) * 1975-04-28 1976-11-16 Xerox Corp Electrostatic duplicator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51131635A (en) * 1975-04-28 1976-11-16 Xerox Corp Electrostatic duplicator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57182761A (en) * 1981-05-05 1982-11-10 Ricoh Co Ltd Corona discharging device
JPS60144765A (en) * 1984-01-07 1985-07-31 Ricoh Co Ltd Transfer control method of multicolor copying method

Similar Documents

Publication Publication Date Title
JPS56110968A (en) Electrophotographic device
JPS5535331A (en) Transfer method of electrophotographic copier
JPS5555373A (en) Pulse bias developing system for magnetic toner
JPS5473055A (en) Charge quantity controller in electrophotographic copier
JPS55106478A (en) Electrostatic latent image developing unit
JPS6039234B2 (en) Charging method and device using corona discharge
JPS54155043A (en) Method of developing electrostatic latent image
JPS5830774A (en) Copying device
JPS5529857A (en) Electrostatic recorder
JPS56150762A (en) Control method for surface potential of photoreceptor of electrophotographic copier
JPS55149953A (en) Electric charging control method
JPS5647064A (en) Discharge quantity controlling method of discharger for electrophotography or electrostatic recording
JPS575058A (en) Charging controller
JPS5766445A (en) Controlling method for extent of charging of electrophotographic copying machine
JPS5691254A (en) Electrophotographic apparatus
JPS5557855A (en) Development bias voltage control method of electrophotographic copier
JPH0739352Y2 (en) High voltage power supply for copier
JPS5643648A (en) Electrophotographic apparatus
JPS54154334A (en) Electrophotographic apparatus and nethod thereof
JPS5770570A (en) Method for controlling image density
JPS54126550A (en) Static latent image developing apparatus
JPS57128352A (en) Developing method for electrostatic latent image
JPS5640871A (en) Method and device for electrostatic isolation
JPS55133056A (en) Electrophotographic method
JPH0342690A (en) Image forming device