GB1347138A - Magnetic brush development apparatus - Google Patents
Magnetic brush development apparatusInfo
- Publication number
- GB1347138A GB1347138A GB2249171A GB2249171A GB1347138A GB 1347138 A GB1347138 A GB 1347138A GB 2249171 A GB2249171 A GB 2249171A GB 2249171 A GB2249171 A GB 2249171A GB 1347138 A GB1347138 A GB 1347138A
- Authority
- GB
- United Kingdom
- Prior art keywords
- brush
- magnetic brush
- magnetic
- drum
- development apparatus
- 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
- G03G15/0921—Details concerning the magnetic brush roller structure, e.g. magnet configuration
-
- 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
1347138 Electrographic developing apparatus XEROX CORP 19 April 1971 [24 Feb 1970] 22491/71 Heading G2H Toner is applied to a latent image bearing surface, e.g. a drum 1, by means of a magnetic brush 11 which is inclined to the direction of movement of the surface. It is stated that this minimizes streaking. As described, the magnetic brush is formed by a non-magnetic tube rotating about a stationary magnet or magnets. The brush 11 is formed into a concave shape, e.g. by means of a doctor blade (20), Fig.4 (not shown) or by means of a non-uniform magnetic field distribution, or by appropriately shaping the tube (40), Fig.5 (not shown). The brush may be vibrated transverse to the direction of drum movement.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13543A US3665891A (en) | 1970-02-24 | 1970-02-24 | Magnetic brush development apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1347138A true GB1347138A (en) | 1974-02-27 |
Family
ID=21760486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2249171A Expired GB1347138A (en) | 1970-02-24 | 1971-04-19 | Magnetic brush development apparatus |
Country Status (4)
Country | Link |
---|---|
US (1) | US3665891A (en) |
JP (1) | JPS4940300B1 (en) |
DE (1) | DE2108722A1 (en) |
GB (1) | GB1347138A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4040387A (en) * | 1972-09-24 | 1977-08-09 | Mita Industrial Co. Ltd. | Electrostatic photographic copying apparatus |
JPS5565977A (en) * | 1978-11-10 | 1980-05-17 | Canon Inc | Magnetic powder conveyor |
US4292924A (en) * | 1979-10-03 | 1981-10-06 | Xerox Corporation | Magnetic brush apparatus |
JPS6347361U (en) * | 1986-09-12 | 1988-03-31 | ||
JP2006184556A (en) * | 2004-12-27 | 2006-07-13 | Brother Ind Ltd | Process cartridge and image forming apparatus |
US8007449B2 (en) * | 2005-12-20 | 2011-08-30 | Cytyc Corporation | Method and apparatus for uterine cavity length measurement |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2959153A (en) * | 1955-12-21 | 1960-11-08 | Ibm | Xerographic image developing apparatus |
US3241466A (en) * | 1961-05-01 | 1966-03-22 | Xerox Corp | Electrostatic photography |
US3169887A (en) * | 1961-05-04 | 1965-02-16 | Eastman Kodak Co | Electrophotographic developing apparatus |
DK104091C (en) * | 1961-07-25 | 1966-03-28 | Zindler Lumoprint Kg | Apparatus for making copies using electrophotographic copying material. |
-
1970
- 1970-02-24 US US13543A patent/US3665891A/en not_active Expired - Lifetime
- 1970-12-17 JP JP45112950A patent/JPS4940300B1/ja active Pending
-
1971
- 1971-02-24 DE DE19712108722 patent/DE2108722A1/en active Pending
- 1971-04-19 GB GB2249171A patent/GB1347138A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2108722A1 (en) | 1971-09-02 |
JPS4940300B1 (en) | 1974-11-01 |
US3665891A (en) | 1972-05-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |