JPS5767968A - Transcription device of electrophotographic copier - Google Patents

Transcription device of electrophotographic copier

Info

Publication number
JPS5767968A
JPS5767968A JP14369380A JP14369380A JPS5767968A JP S5767968 A JPS5767968 A JP S5767968A JP 14369380 A JP14369380 A JP 14369380A JP 14369380 A JP14369380 A JP 14369380A JP S5767968 A JPS5767968 A JP S5767968A
Authority
JP
Japan
Prior art keywords
roller
transcribed
high humidity
bias voltage
stabilizing member
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
JP14369380A
Other languages
Japanese (ja)
Inventor
Tadahiro Yasuda
Yoshiro Suzuki
Masaharu Nishikawa
Eiichi Sato
Tadashi Aoki
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.)
Olympus Corp
Original Assignee
Olympus Corp
Olympus Optical 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 Olympus Corp, Olympus Optical Co Ltd filed Critical Olympus Corp
Priority to JP14369380A priority Critical patent/JPS5767968A/en
Publication of JPS5767968A publication Critical patent/JPS5767968A/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)

Abstract

PURPOSE:To always ensure the stable and uniform transcription of a good quality picture, by setting the impedance of a power source for stabilizing member of transcribed electric field at a prescribed level and applying a high level of bias voltage to the stabilizing member even at high humidity. CONSTITUTION:A high level of bias voltage equal to a transcription roller 15 is applied also to a transport roller 31 of a transcribed electric field stabilizing member although a transfer paper 1 has low resistance at high humidity. As a result, the electric charge for transcribed field given from the roller 15 is prevented from scattering to an earthed body 32. While the resistance value of impedance 35 of a power source Eo that applies the bias voltage to the roller 31 is selected at a proper level lower than the resistance value of a resistance 34 which is applied to the body 32 at high humidity. Accordingly the roller 31 is set at a prescribed high level of bias potential although the current flows via the paper 12 at high humidity. As a result, a high-quality picture can always be transcribed in a stable and uniform way.
JP14369380A 1980-10-16 1980-10-16 Transcription device of electrophotographic copier Pending JPS5767968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14369380A JPS5767968A (en) 1980-10-16 1980-10-16 Transcription device of electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14369380A JPS5767968A (en) 1980-10-16 1980-10-16 Transcription device of electrophotographic copier

Publications (1)

Publication Number Publication Date
JPS5767968A true JPS5767968A (en) 1982-04-24

Family

ID=15344759

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14369380A Pending JPS5767968A (en) 1980-10-16 1980-10-16 Transcription device of electrophotographic copier

Country Status (1)

Country Link
JP (1) JPS5767968A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5934570A (en) * 1982-08-23 1984-02-24 Canon Inc Picture forming device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5934570A (en) * 1982-08-23 1984-02-24 Canon Inc Picture forming device

Similar Documents

Publication Publication Date Title
JPS5767968A (en) Transcription device of electrophotographic copier
JPS57151976A (en) Developing device
JPS576856A (en) Developing method
JPS5484738A (en) Developing device for variable magnification copier
JPS56104363A (en) Transfer paper separating device in powder image transfer type electrophotographic copier
JPS53144341A (en) Toner content controlling device
JPS5692555A (en) Transfer device of electrophotographic copier
JPS55106478A (en) Electrostatic latent image developing unit
JPS54155043A (en) Method of developing electrostatic latent image
JPS5793371A (en) Developing method
JPS5660452A (en) Electrophotographic device
JPS57128352A (en) Developing method for electrostatic latent image
JPS5762066A (en) Image recorder
JPS5699357A (en) Charging voltage stabilization method for copying machine
JPS5669669A (en) One component developing apparatus
JPS547335A (en) Transfer paper separating method
JPS56168673A (en) Developing device
JPS5727265A (en) Copying apparatus
JPS5381129A (en) Electrophotographic printer
JPS56143473A (en) Transfer device
JPS55127583A (en) Dry type developing device
JPS54111830A (en) Transfer process for insulating film belt
JPS5764759A (en) Developing device
JPS53149034A (en) Image reproduction for zerographic copying apparatus of electrostatic latent image transfer type
JPS55120061A (en) Transfer device