JPS5764267A - Dust figure transfer type electronic copying machine - Google Patents
Dust figure transfer type electronic copying machineInfo
- Publication number
- JPS5764267A JPS5764267A JP14093580A JP14093580A JPS5764267A JP S5764267 A JPS5764267 A JP S5764267A JP 14093580 A JP14093580 A JP 14093580A JP 14093580 A JP14093580 A JP 14093580A JP S5764267 A JPS5764267 A JP S5764267A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- image
- potential
- density
- potential part
- 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
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
Abstract
PURPOSE:To always obtain a copy image having a stable image quality, by providing a means which supplies a toner quantitatively to a developer, and also forms a potential part being capable of making a toner adhere onto a constant area of a non-image part on an electrostatic latent image carrying body. CONSTITUTION:The density of a toner is controlled by supplying a toner quantatively by a toner supply device 7, on the other hand, forming a potential part which is capable of making a toner adhere onto a constant area of a non-image part of a photosensitive drum 1, for instance, a part between image parts, developing this potential part and the image part by a developing device 4, and returning a toner scraped by a cleaning device 10, to the device 7. When forming said potential part, the timing for turning off a charger 2 is delayed for turning off a light source, in accordance with the moving direction and length of this potential part. When the charging potential of the photosensitive body drops, the charging potential of this potential part drops, as well, and the density of a balancing toner rises to an intersection point B and suppresses a drop of the density of the image.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14093580A JPS5764267A (en) | 1980-10-07 | 1980-10-07 | Dust figure transfer type electronic copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14093580A JPS5764267A (en) | 1980-10-07 | 1980-10-07 | Dust figure transfer type electronic copying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5764267A true JPS5764267A (en) | 1982-04-19 |
Family
ID=15280234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14093580A Pending JPS5764267A (en) | 1980-10-07 | 1980-10-07 | Dust figure transfer type electronic copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5764267A (en) |
-
1980
- 1980-10-07 JP JP14093580A patent/JPS5764267A/en active Pending
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