JPS5448254A - Method and device for replenishing of developer - Google Patents
Method and device for replenishing of developerInfo
- Publication number
- JPS5448254A JPS5448254A JP11416377A JP11416377A JPS5448254A JP S5448254 A JPS5448254 A JP S5448254A JP 11416377 A JP11416377 A JP 11416377A JP 11416377 A JP11416377 A JP 11416377A JP S5448254 A JPS5448254 A JP S5448254A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- carrier
- screw
- developer
- 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 maintain developing effect constant by respectively controlling the toner of the mixed developer of toner and carrier according to its concentration and carrier according to the change in developer volume and replenishing these respectively independently.
CONSTITUTION: A toner replenching device 3 is provided with mixers 13, 14 in a hopper 3c and a feed screw 3b in the lower part. A toner concentration decrease signal causes its driving part 9 to respond to revolve the screw 3b, which in turn charges toner into the opening 2a of a developing device 2 through replenishment hole 3a. A carrier replenishing device 4 is provided with a feed screw 4a in the lower part of a hopper 4c and its driving part 5 responds to the replenishment signal having detected the change in devoloper volume and causes the screw 4a to revolve, thus charging carrier into the opening 2b of the developing device through replenishment hole 4b. The toner and carrier having been charged are mixed and agitated by the screw 2c of the developing device. Hence, the toner and carrier of the two component type developer are replenished respectively separately and the developing effect is maintained constant
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11416377A JPS5448254A (en) | 1977-09-22 | 1977-09-22 | Method and device for replenishing of developer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11416377A JPS5448254A (en) | 1977-09-22 | 1977-09-22 | Method and device for replenishing of developer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5448254A true JPS5448254A (en) | 1979-04-16 |
Family
ID=14630731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11416377A Pending JPS5448254A (en) | 1977-09-22 | 1977-09-22 | Method and device for replenishing of developer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5448254A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56159654A (en) * | 1980-05-14 | 1981-12-09 | Fuji Xerox Co Ltd | Developing method |
JPH0394560U (en) * | 1990-01-19 | 1991-09-26 | ||
WO2004081669A1 (en) * | 2003-03-10 | 2004-09-23 | Mitsubishi Chemical Corporation | Toner for developing electrostatic charge image and process for producing the same |
-
1977
- 1977-09-22 JP JP11416377A patent/JPS5448254A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56159654A (en) * | 1980-05-14 | 1981-12-09 | Fuji Xerox Co Ltd | Developing method |
JPH0143301B2 (en) * | 1980-05-14 | 1989-09-20 | Fuji Xerox Co Ltd | |
JPH0394560U (en) * | 1990-01-19 | 1991-09-26 | ||
WO2004081669A1 (en) * | 2003-03-10 | 2004-09-23 | Mitsubishi Chemical Corporation | Toner for developing electrostatic charge image and process for producing the same |
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