JPS55113072A - Electrophotographic copier - Google Patents
Electrophotographic copierInfo
- Publication number
- JPS55113072A JPS55113072A JP2157779A JP2157779A JPS55113072A JP S55113072 A JPS55113072 A JP S55113072A JP 2157779 A JP2157779 A JP 2157779A JP 2157779 A JP2157779 A JP 2157779A JP S55113072 A JPS55113072 A JP S55113072A
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- charger
- developing device
- constant speed
- magnetic
- 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.)
- Granted
Links
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE: To eliminate the uneven revolutions owing to the variations in the driving torque of a rotating sleeve and minimize the production of noise by driving the rotating sleeve of the magnetic brush type developing device to rotate at a constant speed by a motor equipped with a rotating speed detecting means.
CONSTITUTION: A charger 13, exposure slit 14, developing device 15, transfer charger 16, paper-destaticizing charger 17, photoreceptor-destaticizing charger 18 and cleaner 19 are subsequently disposed aroung the photosensitive drum 12. The developing device 15 is constituted by the magnet roll provided with the stationary magnetic pole group by permanent magnet 33 in a rotary sleeve 32 made of non- magnetic material. The developer composed of toner and carrier is lifted by the magnetic force of the magnet 33 along with the rotation of the sleeve 32 to form a magnetic brush which then lightly rubs the surface of the drum 12, whereby the electrostatic latent images are developed and the toner images obtained. In this case, the sleeve 32 is driven to rotate at a constant speed by the constant speed control motor provided with a rotating speed detecting means.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54021577A JPS6035063B2 (en) | 1979-02-26 | 1979-02-26 | electrophotographic copying device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54021577A JPS6035063B2 (en) | 1979-02-26 | 1979-02-26 | electrophotographic copying device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55113072A true JPS55113072A (en) | 1980-09-01 |
JPS6035063B2 JPS6035063B2 (en) | 1985-08-12 |
Family
ID=12058879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54021577A Expired JPS6035063B2 (en) | 1979-02-26 | 1979-02-26 | electrophotographic copying device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6035063B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4561771A (en) * | 1982-08-10 | 1985-12-31 | Minolta Camera Kabushiki Kaisha | System for controlling the reciprocation of a scanning apparatus |
US4568171A (en) * | 1982-07-05 | 1986-02-04 | Minolta Camera Kabushiki Kaisha | System for controlling the reciprocation of a scanning arrangement |
JPS62115472A (en) * | 1985-11-14 | 1987-05-27 | Sharp Corp | Abnormality detector for image forming device |
-
1979
- 1979-02-26 JP JP54021577A patent/JPS6035063B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4568171A (en) * | 1982-07-05 | 1986-02-04 | Minolta Camera Kabushiki Kaisha | System for controlling the reciprocation of a scanning arrangement |
US4561771A (en) * | 1982-08-10 | 1985-12-31 | Minolta Camera Kabushiki Kaisha | System for controlling the reciprocation of a scanning apparatus |
JPS62115472A (en) * | 1985-11-14 | 1987-05-27 | Sharp Corp | Abnormality detector for image forming device |
Also Published As
Publication number | Publication date |
---|---|
JPS6035063B2 (en) | 1985-08-12 |
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