JPS6429881A - Developing device - Google Patents
Developing deviceInfo
- Publication number
- JPS6429881A JPS6429881A JP18643087A JP18643087A JPS6429881A JP S6429881 A JPS6429881 A JP S6429881A JP 18643087 A JP18643087 A JP 18643087A JP 18643087 A JP18643087 A JP 18643087A JP S6429881 A JPS6429881 A JP S6429881A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- development
- development part
- replenished
- replenishing
- 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
Landscapes
- Dry Development In Electrophotography (AREA)
Abstract
PURPOSE:To start development immediately even when a development part is switched by operating the toner density detecting means of a development part which is not used and replenishing toner by a corresponding toner replenishing means when detecting the toner concentration of the development part being low. CONSTITUTION:Even when toner is supplied from a either of development parts 6 and 7 at the time of development, toner sensors 13 and 14 detect the toner concentration in both development parts 6 and 7 and input the results to a microcomputer 17. The microcomputer 17 operates a corresponding toner replenishing motor 15 or 16 when the toner density in the development part 6 or 7 is lower than a specific value, thereby toner is replenished. Thus, even when the development part is not used for the development, the toner is replenished, so when the specification of a color is changed, the development part 6 or 7 which is used newly is already replenished with a necessary amount of toner at all times.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18643087A JPS6429881A (en) | 1987-07-24 | 1987-07-24 | Developing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18643087A JPS6429881A (en) | 1987-07-24 | 1987-07-24 | Developing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6429881A true JPS6429881A (en) | 1989-01-31 |
Family
ID=16188294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18643087A Pending JPS6429881A (en) | 1987-07-24 | 1987-07-24 | Developing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6429881A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5518761A (en) * | 1992-08-28 | 1996-05-21 | Nippon Shokubai Co., Ltd. | Absorbent material absorbent article, and method for production thereof |
-
1987
- 1987-07-24 JP JP18643087A patent/JPS6429881A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5518761A (en) * | 1992-08-28 | 1996-05-21 | Nippon Shokubai Co., Ltd. | Absorbent material absorbent article, and method for production thereof |
US5720736A (en) * | 1992-08-28 | 1998-02-24 | Nippon Shokubai Co., Ltd. | Absorbent material, absorbent article, and method for production thereof |
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