GB1267383A - Electrophotographic developing device - Google Patents
Electrophotographic developing deviceInfo
- Publication number
- GB1267383A GB1267383A GB29080/69A GB2908069A GB1267383A GB 1267383 A GB1267383 A GB 1267383A GB 29080/69 A GB29080/69 A GB 29080/69A GB 2908069 A GB2908069 A GB 2908069A GB 1267383 A GB1267383 A GB 1267383A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rollers
- magnetic brush
- grooves
- drum
- june
- 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.)
- Expired
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
- G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
1,267,383. Magnetic brush developing apparatus. RICOH K.K. June 9, 1969 [June 8, 1968], No.29080/69. Heading G2H. In a magnetic brush developing apparatus, a sheet guide element is reciprocated perpendicularly to the feed path to stir the magnetic brush. As shown developer falls from hopper 6 on to magnetic drum 1 to form brushes at the two poles. Electrophotographic sheet 23 is fed downwards between continuous belt 8 and rollers 14 and 15 15 and then upwards past the opposite side of drum 1 by similar guide means. Guide elements 18 and 19 comprising a plurality of wires are suspended from grooves in the rollers 14 and 16 with their lower ends in cam grooves in rollers 15 and 17 17 so that they reciprocate along a direction parallel with the drum axis to stir the developer forming the brushes. In a second embodiment Figs.3 and 4 (not shown) wire guides 18 and 19 are replaced by endless nylon filaments 36 wound on grooves in rollers (27, 29, 30, 31) the upper rollers being reciprocated by the camming action of fixed pins (34 and 35).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1968048137U JPS471593Y1 (en) | 1968-06-08 | 1968-06-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1267383A true GB1267383A (en) | 1972-03-15 |
Family
ID=12794934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29080/69A Expired GB1267383A (en) | 1968-06-08 | 1969-06-09 | Electrophotographic developing device |
Country Status (5)
Country | Link |
---|---|
US (1) | US3595208A (en) |
JP (1) | JPS471593Y1 (en) |
DE (1) | DE1928769A1 (en) |
FR (1) | FR2010423A1 (en) |
GB (1) | GB1267383A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3766850A (en) * | 1971-12-30 | 1973-10-23 | Xerox Corp | Developing means for electrostatic printing apparatus |
US3865081A (en) * | 1972-05-22 | 1975-02-11 | Xerox Corp | Magnetic brush developing apparatus |
JP2000158698A (en) * | 1998-11-26 | 2000-06-13 | Seiko Instruments Inc | Optical writing printer head and printer employing it |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3058405A (en) * | 1956-10-22 | 1962-10-16 | Zindler Lumoprint Kg | Device for preparing a copy by means of latent electrostatic images |
GB1006078A (en) * | 1960-09-26 | 1965-09-29 | Rank Xerox Ltd | Improved cascade development of electrostatic latent images |
-
1968
- 1968-06-08 JP JP1968048137U patent/JPS471593Y1/ja not_active Expired
-
1969
- 1969-05-28 US US828581A patent/US3595208A/en not_active Expired - Lifetime
- 1969-06-03 FR FR6918158A patent/FR2010423A1/fr not_active Withdrawn
- 1969-06-06 DE DE19691928769 patent/DE1928769A1/en active Pending
- 1969-06-09 GB GB29080/69A patent/GB1267383A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS471593Y1 (en) | 1972-01-20 |
US3595208A (en) | 1971-07-27 |
FR2010423A1 (en) | 1970-02-13 |
DE1928769A1 (en) | 1969-12-11 |
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