JPS5639568A - Concentration detector of developing apparatus - Google Patents
Concentration detector of developing apparatusInfo
- Publication number
- JPS5639568A JPS5639568A JP11496179A JP11496179A JPS5639568A JP S5639568 A JPS5639568 A JP S5639568A JP 11496179 A JP11496179 A JP 11496179A JP 11496179 A JP11496179 A JP 11496179A JP S5639568 A JPS5639568 A JP S5639568A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- supplementing
- supply
- intake
- developer
- 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
Landscapes
- Dry Development In Electrophotography (AREA)
Abstract
PURPOSE:To attain high precision developing-agent concentration detection by making uniform the supply of a developer to the detection part consisting of a detecting element and detector, by providing a supply limiting body to the supply intake of a developer supply body that supplies the developer. CONSTITUTION:In supplementing room 10a obtained by sectioning developer supply body 10, a supplementary toner is contained. At the bottom part of supplementing room 10a, supplementary intake 11 obtained by notching upper wall surface 1a of main body 1 is provided in the forward direction and toner supplementing roller 12 is arranged there. Further, supplementing intake 11 is fitted with beltlike shielding plate 13 of width size A as a supply limiting body to cover the outer circumferential surface that corresponds to the detection part of toner supplementing roller 12, limiting the toner to be supplied from the part to the detection part by way of supplementing intake 11 over region A. The toner made even in region A is stuck to the circumferential surface of rotary probe 6 and photocoupler 7 detects its concentration as a change in optical reflection coefficient, so that the quantity of the supply toner from developer supply body 10 will be brought under the variable control of toner supplementing roller 12 on the basis of the detection information.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11496179A JPS5639568A (en) | 1979-09-07 | 1979-09-07 | Concentration detector of developing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11496179A JPS5639568A (en) | 1979-09-07 | 1979-09-07 | Concentration detector of developing apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5639568A true JPS5639568A (en) | 1981-04-15 |
JPS6313541B2 JPS6313541B2 (en) | 1988-03-25 |
Family
ID=14650914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11496179A Granted JPS5639568A (en) | 1979-09-07 | 1979-09-07 | Concentration detector of developing apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5639568A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01161382A (en) * | 1987-12-18 | 1989-06-26 | Konica Corp | Developing device |
-
1979
- 1979-09-07 JP JP11496179A patent/JPS5639568A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01161382A (en) * | 1987-12-18 | 1989-06-26 | Konica Corp | Developing device |
Also Published As
Publication number | Publication date |
---|---|
JPS6313541B2 (en) | 1988-03-25 |
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