JPS57135965A - Electrophotographic transfer device - Google Patents
Electrophotographic transfer deviceInfo
- Publication number
- JPS57135965A JPS57135965A JP2123881A JP2123881A JPS57135965A JP S57135965 A JPS57135965 A JP S57135965A JP 2123881 A JP2123881 A JP 2123881A JP 2123881 A JP2123881 A JP 2123881A JP S57135965 A JPS57135965 A JP S57135965A
- Authority
- JP
- Japan
- Prior art keywords
- transfer
- supporting body
- image supporting
- voltage
- images
- 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
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
- G03G15/163—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 using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap
- G03G15/1635—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 using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap the field being produced by laying down an electrostatic charge behind the base or the recording member, e.g. by a corona device
- G03G15/1645—Arrangements for controlling the amount of charge
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
PURPOSE:To obtain always an adequate transfer state and stable transferred images in spite of the change in humidity by controlling an electric power source for transfer voltage which transfers the images on an image supporting body onto a transfer material according to the moisture absorption condition of the transfer material. CONSTITUTION:An image supporting body 1 has a photoconductive layer and an insulation layer on the circumferential surface of a drum and has electrostatic latent images on the circumferential surface thereof. A transfer material 4 contacts the photosensitive surface of the body 1 in a transfer position and transfer voltage is applied between the image supporting body and the material 4 by a transfer electrostatic charger 5. A humidity sensor 6 is provided near the material 4 to detect the moisture adsorption condition of the material 4 by detecting the humidity around the same. The detection signal thereof is inputted via an amplifier 7 to a high voltage power source 8, and the supply voltage from here to the charger 5 is so controlled as to assume always the adequate transfer state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2123881A JPS57135965A (en) | 1981-02-16 | 1981-02-16 | Electrophotographic transfer device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2123881A JPS57135965A (en) | 1981-02-16 | 1981-02-16 | Electrophotographic transfer device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57135965A true JPS57135965A (en) | 1982-08-21 |
Family
ID=12049463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2123881A Pending JPS57135965A (en) | 1981-02-16 | 1981-02-16 | Electrophotographic transfer device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57135965A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62287271A (en) * | 1986-06-05 | 1987-12-14 | Canon Inc | Multiplex transfer device |
JPS6341170U (en) * | 1986-09-03 | 1988-03-17 | ||
EP0298506A2 (en) * | 1987-07-09 | 1989-01-11 | Canon Kabushiki Kaisha | An image forming apparatus |
-
1981
- 1981-02-16 JP JP2123881A patent/JPS57135965A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62287271A (en) * | 1986-06-05 | 1987-12-14 | Canon Inc | Multiplex transfer device |
JPS6341170U (en) * | 1986-09-03 | 1988-03-17 | ||
EP0298506A2 (en) * | 1987-07-09 | 1989-01-11 | Canon Kabushiki Kaisha | An image forming apparatus |
US4912515A (en) * | 1987-07-09 | 1990-03-27 | Canon Kabushiki Kaisha | Image forming apparatus |
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