JPS5723986A - Cleaner for copying machine - Google Patents
Cleaner for copying machineInfo
- Publication number
- JPS5723986A JPS5723986A JP9762280A JP9762280A JPS5723986A JP S5723986 A JPS5723986 A JP S5723986A JP 9762280 A JP9762280 A JP 9762280A JP 9762280 A JP9762280 A JP 9762280A JP S5723986 A JPS5723986 A JP S5723986A
- Authority
- JP
- Japan
- Prior art keywords
- bias
- roll
- cleaner
- toner
- time
- 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
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
- G03G21/0047—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using electrostatic or magnetic means; Details thereof, e.g. magnetic pole arrangement of magnetic devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
PURPOSE:To reject toner of opposite polarity and to clean up residual toner, by giving a delay to ON of a bias B(¦B¦>¦A¦) of a bias roll than ON of a bias A of a magnet cleaning roll 2 for a prescribed time and making earlier OFF for a given time. CONSTITUTION:The switching relation between a bias A of a magnet cleaning roll 2 of a cleaner and a bias B of a bias roll 3 is as ¦B¦>¦A¦. The ON of the bias B of the bias roll 3 is delayed by time ts than the ON of the bias A of the magnet cleaning roll 2. On the other hand, the OFF is made earlier than time ts'. With the constitution like this, the toner of opposite polarity in the cleaner is rejected at the ON/OFF of the cleaner, the toner remained on the bias roll 3 is cleaned, the bias roll 3 can be cleaned at all times and the life of the bias roll 3 can be extended remarkably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9762280A JPS5723986A (en) | 1980-07-18 | 1980-07-18 | Cleaner for copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9762280A JPS5723986A (en) | 1980-07-18 | 1980-07-18 | Cleaner for copying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5723986A true JPS5723986A (en) | 1982-02-08 |
Family
ID=14197292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9762280A Pending JPS5723986A (en) | 1980-07-18 | 1980-07-18 | Cleaner for copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5723986A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5298949A (en) * | 1991-04-16 | 1994-03-29 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for removing a portion of a developing material deposited on a non-image area of a surface of a latent image carrier |
| US5488465A (en) * | 1991-07-26 | 1996-01-30 | Matsushita Electric Industrial Co., Ltd. | Electrophotographic developing method using magnetic developing material and apparatus employed therefor |
| TWI777037B (en) * | 2018-02-27 | 2022-09-11 | 日商德山股份有限公司 | hammer |
-
1980
- 1980-07-18 JP JP9762280A patent/JPS5723986A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5298949A (en) * | 1991-04-16 | 1994-03-29 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for removing a portion of a developing material deposited on a non-image area of a surface of a latent image carrier |
| US5488465A (en) * | 1991-07-26 | 1996-01-30 | Matsushita Electric Industrial Co., Ltd. | Electrophotographic developing method using magnetic developing material and apparatus employed therefor |
| US5543901A (en) * | 1991-07-26 | 1996-08-06 | Matsushita Electric Industrial Co., Ltd. | Electrophotographic developing method using magnetic developing material and apparatus employed therefor |
| TWI777037B (en) * | 2018-02-27 | 2022-09-11 | 日商德山股份有限公司 | hammer |
| US11794330B2 (en) | 2018-02-27 | 2023-10-24 | Tokuyama Corporation | Hammer |
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