JPS575062A - Developing device - Google Patents
Developing deviceInfo
- Publication number
- JPS575062A JPS575062A JP7948080A JP7948080A JPS575062A JP S575062 A JPS575062 A JP S575062A JP 7948080 A JP7948080 A JP 7948080A JP 7948080 A JP7948080 A JP 7948080A JP S575062 A JPS575062 A JP S575062A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- chamber
- supplied
- space
- shutter
- 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
- G03G15/08—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
- G03G15/0856—Detection or control means for the developer level
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE:To simplify both the space and the wiring of a toner sensor and at the same time to avoid a residue of old toner, by controlling a toner supply means with the detection signal sent from a detecting means for toner residual quantity, that detect the quantity of toner within a developing chamber and then supplying the toner into the developing chamber from a supplement toner storing chamber. CONSTITUTION:An electrostatic latent image on an electrostatic drum 15 is developed with the toner on a nonmagnetic sleeve 10 made of stainless steel or the like. The toner in a developing chamber 2 is carried on sleeves 8 and 10 on magnetic rollers 7 and 9. A space of about 300mu is secured between the sleeve 10 and the face of the drum 15. Then the toner 4 is supplied by a supply shutter 5 from a toner storing chamber 1 provided at the upper part of the chamber 2. When the exhaustion of toner is detected by a detector S-1 for toner residual quantity, a solenoid provided on the side wall of the chamber 2 works to actuate the shutter 5 via a lever or the like as shown by a dotted line. Thus the toner is supplied into the chamber 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7948080A JPS575062A (en) | 1980-06-12 | 1980-06-12 | Developing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7948080A JPS575062A (en) | 1980-06-12 | 1980-06-12 | Developing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS575062A true JPS575062A (en) | 1982-01-11 |
Family
ID=13691053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7948080A Pending JPS575062A (en) | 1980-06-12 | 1980-06-12 | Developing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS575062A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6278579A (en) * | 1985-09-30 | 1987-04-10 | Mita Ind Co Ltd | Toner replenishing device |
JPS62136676A (en) * | 1985-12-11 | 1987-06-19 | Canon Inc | Recording device |
JPH01222278A (en) * | 1988-03-02 | 1989-09-05 | Canon Inc | Developing device |
JPH01229275A (en) * | 1988-03-08 | 1989-09-12 | Minolta Camera Co Ltd | Toner supply device |
JPH01288876A (en) * | 1988-05-17 | 1989-11-21 | Fuji Xerox Co Ltd | Device and method for image forming |
JPH0572898A (en) * | 1992-02-14 | 1993-03-26 | Mita Ind Co Ltd | Electrostatic latent image developing device |
-
1980
- 1980-06-12 JP JP7948080A patent/JPS575062A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6278579A (en) * | 1985-09-30 | 1987-04-10 | Mita Ind Co Ltd | Toner replenishing device |
JPS62136676A (en) * | 1985-12-11 | 1987-06-19 | Canon Inc | Recording device |
JPH01222278A (en) * | 1988-03-02 | 1989-09-05 | Canon Inc | Developing device |
JPH01229275A (en) * | 1988-03-08 | 1989-09-12 | Minolta Camera Co Ltd | Toner supply device |
JPH01288876A (en) * | 1988-05-17 | 1989-11-21 | Fuji Xerox Co Ltd | Device and method for image forming |
JPH0572898A (en) * | 1992-02-14 | 1993-03-26 | Mita Ind Co Ltd | Electrostatic latent image developing device |
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