JPS5714863A - Method for replenishing developing powder of electrostatic printer - Google Patents
Method for replenishing developing powder of electrostatic printerInfo
- Publication number
- JPS5714863A JPS5714863A JP8865480A JP8865480A JPS5714863A JP S5714863 A JPS5714863 A JP S5714863A JP 8865480 A JP8865480 A JP 8865480A JP 8865480 A JP8865480 A JP 8865480A JP S5714863 A JPS5714863 A JP S5714863A
- Authority
- JP
- Japan
- Prior art keywords
- printing
- amount
- developing powder
- developing
- roller
- 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
- 239000000843 powder Substances 0.000 title abstract 7
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
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
- G03G15/0849—Detection or control means for the developer concentration
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE:To performing printing of constant density regardless of the varying amounts of printing by adding the amount of developing powder consumption corresponding to the amount of printing and the amount of the developing powder consumed in correspondence to the number of revolutions of a developing roller thereby controlling the replenishing amount. CONSTITUTION:A printing signal indicating the amount of printing is inputted from the upper device 9 of a central processing unit or the like to a counter 10. On the other hand, the count value corresponding to the number of revolutions of the developing roller is inputted to a counter 14 via an encoder 15 connected to a develoing roller driving source 16. In an adder 11, the count values of both counters 10, 14 are added and the output thereof is inputted to a developing powder hopper driving part 12 which in turn controls a developing powder feed roller, thereby replenishing the required amount of the developing powder. Since the developing powder consumed in correspondence to the number of revolutions of the developing roller other than the amount of printing is replenished by this, the density of printing does not lower even in case when the amount of printing is small, thus good printing of always constant quality is accomplished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8865480A JPS5714863A (en) | 1980-06-30 | 1980-06-30 | Method for replenishing developing powder of electrostatic printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8865480A JPS5714863A (en) | 1980-06-30 | 1980-06-30 | Method for replenishing developing powder of electrostatic printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5714863A true JPS5714863A (en) | 1982-01-26 |
| JPS6333704B2 JPS6333704B2 (en) | 1988-07-06 |
Family
ID=13948804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8865480A Granted JPS5714863A (en) | 1980-06-30 | 1980-06-30 | Method for replenishing developing powder of electrostatic printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5714863A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57146263A (en) * | 1981-03-05 | 1982-09-09 | Fujitsu Ltd | Control method for toner density |
| JPS62292181A (en) * | 1986-06-06 | 1987-12-18 | ケイ−ツ−、コ−ポレ−シヨン | Core of ski board reinforced by fiber and apparatus and method for producing the same |
-
1980
- 1980-06-30 JP JP8865480A patent/JPS5714863A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57146263A (en) * | 1981-03-05 | 1982-09-09 | Fujitsu Ltd | Control method for toner density |
| JPH0239791B2 (en) * | 1981-03-05 | 1990-09-07 | Fujitsu Kk | |
| JPS62292181A (en) * | 1986-06-06 | 1987-12-18 | ケイ−ツ−、コ−ポレ−シヨン | Core of ski board reinforced by fiber and apparatus and method for producing the same |
| JPH0374594B2 (en) * | 1986-06-06 | 1991-11-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6333704B2 (en) | 1988-07-06 |
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