JPS57101873A - Electrophotographic copier - Google Patents
Electrophotographic copierInfo
- Publication number
- JPS57101873A JPS57101873A JP55179223A JP17922380A JPS57101873A JP S57101873 A JPS57101873 A JP S57101873A JP 55179223 A JP55179223 A JP 55179223A JP 17922380 A JP17922380 A JP 17922380A JP S57101873 A JPS57101873 A JP S57101873A
- Authority
- JP
- Japan
- Prior art keywords
- transfer
- paper
- port
- duct
- toner
- 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
- G03G15/1695—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 paper base before the transfer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
PURPOSE:To improve the transfer efficiency of a toner by blowing heated dry air to the transfer paper prior to transfer thereby dehumidifying and drying the same. CONSTITUTION:A blast duct 34 mounted to a housing 1 is disposed wit a suction port 36 near a heating roller 22, and through said port it sucks the dry air heated with a heater 21 and sicharges the same through two discharge ports 36, 37. One port 36 of the duct 34 is directed toward the top surface of transfer paper 12 prior to transfer, and the other port 37 opens in a toner box 9. A blast fan 38 is disposed in the duct 34. While the dry air discharged through the port 36 of the duct 34, it is blown to the top surface of the paper 12, and further it falls onto the paper 12 on a paper feed table 14. The paper 12 is dehumidified to have higher insulation characteristic, so that the electric charge of a toner 8 is attracted to a transfer means 11 without neutralizing with the electric charge of a transfer corotron 11. Thereby, the transfer efficiency of the toner is improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55179223A JPS57101873A (en) | 1980-12-17 | 1980-12-17 | Electrophotographic copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55179223A JPS57101873A (en) | 1980-12-17 | 1980-12-17 | Electrophotographic copier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57101873A true JPS57101873A (en) | 1982-06-24 |
Family
ID=16062081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55179223A Pending JPS57101873A (en) | 1980-12-17 | 1980-12-17 | Electrophotographic copier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57101873A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60232558A (en) * | 1984-05-01 | 1985-11-19 | Canon Inc | Image forming device with preventing function against dew condensation |
JP2004093581A (en) * | 2002-07-11 | 2004-03-25 | Ricoh Co Ltd | Image forming apparatus |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5093652A (en) * | 1973-12-20 | 1975-07-25 | ||
JPS53143405A (en) * | 1977-05-20 | 1978-12-13 | Origin Electric | Electrostatic printer |
JPS5574570A (en) * | 1978-11-30 | 1980-06-05 | Hitachi Metals Ltd | Image recording method |
-
1980
- 1980-12-17 JP JP55179223A patent/JPS57101873A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5093652A (en) * | 1973-12-20 | 1975-07-25 | ||
JPS53143405A (en) * | 1977-05-20 | 1978-12-13 | Origin Electric | Electrostatic printer |
JPS5574570A (en) * | 1978-11-30 | 1980-06-05 | Hitachi Metals Ltd | Image recording method |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60232558A (en) * | 1984-05-01 | 1985-11-19 | Canon Inc | Image forming device with preventing function against dew condensation |
JP2004093581A (en) * | 2002-07-11 | 2004-03-25 | Ricoh Co Ltd | Image forming apparatus |
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