JPS5655973A - Toner replenishing method of wet type developing device - Google Patents
Toner replenishing method of wet type developing deviceInfo
- Publication number
- JPS5655973A JPS5655973A JP13142579A JP13142579A JPS5655973A JP S5655973 A JPS5655973 A JP S5655973A JP 13142579 A JP13142579 A JP 13142579A JP 13142579 A JP13142579 A JP 13142579A JP S5655973 A JPS5655973 A JP S5655973A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- sensor
- pipe
- concentration
- light
- 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
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
- G03G15/104—Preparing, mixing, transporting or dispensing developer
- G03G15/105—Detection or control means for the toner concentration
Abstract
PURPOSE:To make the amount of toner replenishiment proper by making toner replenishment in a fixed time, and enabling the toner to be replenished at every fixed time intermittently even when the state that a sensor is detecting the decrease of the toner concentration is being continued. CONSTITUTION:Light emitting element and photodetector 8a, 8b are disposed near a liquid feed pipe 5 so as to oppose to each other with said pipe as a center, and these elements 8a, 8b constitute a concentration sensor 8 which detects the concentration of the toner of the developing soln. which is transferred in the pipe 5. The liquid feed pipe 5 near this sensor 8 is so constituted as to have light transmittance. The light of the light emitting element 8a is irradiated to the developing soln. in the pipe 5, and the quantity of the light incident to the photodetector 8b differs according to the toner concentrations. The sensor 8 applies an output to a control unit 9 according to the concentrations. A toner vessel 11a containing the liquid toner is disposed above the developing tank 3, with its mouth part faced downward. Thereby, the amount of the toner replenishment may be made proper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13142579A JPS5655973A (en) | 1979-10-12 | 1979-10-12 | Toner replenishing method of wet type developing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13142579A JPS5655973A (en) | 1979-10-12 | 1979-10-12 | Toner replenishing method of wet type developing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5655973A true JPS5655973A (en) | 1981-05-16 |
Family
ID=15057655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13142579A Pending JPS5655973A (en) | 1979-10-12 | 1979-10-12 | Toner replenishing method of wet type developing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5655973A (en) |
-
1979
- 1979-10-12 JP JP13142579A patent/JPS5655973A/en active Pending
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