JPS5774767A - Electrophotographic device - Google Patents

Electrophotographic device

Info

Publication number
JPS5774767A
JPS5774767A JP13541281A JP13541281A JPS5774767A JP S5774767 A JPS5774767 A JP S5774767A JP 13541281 A JP13541281 A JP 13541281A JP 13541281 A JP13541281 A JP 13541281A JP S5774767 A JPS5774767 A JP S5774767A
Authority
JP
Japan
Prior art keywords
photoreceptor
transfer paper
toner
irradiated
size
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
JP13541281A
Other languages
Japanese (ja)
Inventor
Tsutomu Kubo
Takeshi Ueno
Tsutomu Uehara
Toshihiko Oguchi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP13541281A priority Critical patent/JPS5774767A/en
Publication of JPS5774767A publication Critical patent/JPS5774767A/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
    • G03G15/169—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 with means for preconditioning the toner image before the transfer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)

Abstract

PURPOSE:To prevent the surface of a photoreceptor from being stained with the untransferred toner by making an electrostatic latent image disappear by exposing the entire surface of the photoreceptor, being developed according to the latent image formed on the photoreceptor by image exposure, according to the size of transfer paper. CONSTITUTION:A photoreceptor 1 is discharged by a charger 4 to charge a conductive layer 2 and a photoconductive layer 3 on the photoreceptor 1, which is irradiated with an original image 20; and development is carried out by a magnetic brush developing device with conductive magnetic toner 7. Then, the photoreceptor 1 is irradiated by an exposure lamp according to the size of transfer paper, thereby making a latent image at a part, irradiated with light, disappear. At the same time, the entire surface is charged with the negative polarity to intensify the polarity of the toner 7, and the image is transferred onto the transfer paper 11. Since the entire-surface exposure is performed according to the size of the transfer paper, no excessive toner sticks to a conductive rubber roller.
JP13541281A 1981-08-31 1981-08-31 Electrophotographic device Pending JPS5774767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13541281A JPS5774767A (en) 1981-08-31 1981-08-31 Electrophotographic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13541281A JPS5774767A (en) 1981-08-31 1981-08-31 Electrophotographic device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP1646778A Division JPS54109847A (en) 1978-02-17 1978-02-17 Electrophotographic apparatus

Publications (1)

Publication Number Publication Date
JPS5774767A true JPS5774767A (en) 1982-05-11

Family

ID=15151117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13541281A Pending JPS5774767A (en) 1981-08-31 1981-08-31 Electrophotographic device

Country Status (1)

Country Link
JP (1) JPS5774767A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6296982A (en) * 1986-10-27 1987-05-06 Toshiba Corp Image forming device
FR2687486A1 (en) * 1992-02-19 1993-08-20 Samsung Electronics Co Ltd METHOD AND APPARATUS FOR CONTROLLING EXPOSURE AND PREVENTING REVERSE LOAD IN A PRINTER OF AN ELECTROPHOTOGRAPHIC DEVELOPMENT SYSTEM

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6296982A (en) * 1986-10-27 1987-05-06 Toshiba Corp Image forming device
JPH0569427B2 (en) * 1986-10-27 1993-10-01 Tokyo Shibaura Electric Co
FR2687486A1 (en) * 1992-02-19 1993-08-20 Samsung Electronics Co Ltd METHOD AND APPARATUS FOR CONTROLLING EXPOSURE AND PREVENTING REVERSE LOAD IN A PRINTER OF AN ELECTROPHOTOGRAPHIC DEVELOPMENT SYSTEM
US5444830A (en) * 1992-02-19 1995-08-22 Samsung Electronics Co., Ltd. Method and apparatus for controlling exposure and transference in an electrophotographic recording apparatus

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