JPS55153976A - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JPS55153976A JPS55153976A JP6079079A JP6079079A JPS55153976A JP S55153976 A JPS55153976 A JP S55153976A JP 6079079 A JP6079079 A JP 6079079A JP 6079079 A JP6079079 A JP 6079079A JP S55153976 A JPS55153976 A JP S55153976A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- tep
- toners
- output
- display device
- 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
- Paper Feeding For Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE:To avoid the complexing of the operating part by displaying the toner shortage in the developing device and the overflow of the toner recovery case by a common display device in a dry type electrophotographic copier or the like. CONSTITUTION:A residual toner amount detecting element 61 and overflow detecting element 62 detect the toner level in a case from the presence or not of the toners interposing between lamps and photo detectors and output the signals TEP, OVF respectively. When the toners in the developing device during copying become less, the signal TEP is output by way of an operational amplifier Q50. The signal thereof lights a toner-absence display device 48 by way of a gate G61. When the toners in the toner recovery case increase and become close to an overflow state, the signal OVF is output through an operational amplifier Q51 to light the toner-absence display device 47 through the gate G61 in the same manner as with the TEP. In this case, it may be possible to make the displaying differing from that of the TEP of lighting the device by letting the device flicker.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6079079A JPS55153976A (en) | 1979-05-17 | 1979-05-17 | Image forming device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6079079A JPS55153976A (en) | 1979-05-17 | 1979-05-17 | Image forming device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55153976A true JPS55153976A (en) | 1980-12-01 |
JPS6354179B2 JPS6354179B2 (en) | 1988-10-27 |
Family
ID=13152441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6079079A Granted JPS55153976A (en) | 1979-05-17 | 1979-05-17 | Image forming device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55153976A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5888664U (en) * | 1981-12-04 | 1983-06-16 | 富士通株式会社 | Toner full display device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5040244U (en) * | 1973-07-27 | 1975-04-24 | ||
JPS53131049A (en) * | 1978-04-29 | 1978-11-15 | Ricoh Co Ltd | Copying apparatus for zerography |
JPS53141630A (en) * | 1977-05-17 | 1978-12-09 | Ricoh Co Ltd | Paper feeder |
-
1979
- 1979-05-17 JP JP6079079A patent/JPS55153976A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5040244U (en) * | 1973-07-27 | 1975-04-24 | ||
JPS53141630A (en) * | 1977-05-17 | 1978-12-09 | Ricoh Co Ltd | Paper feeder |
JPS53131049A (en) * | 1978-04-29 | 1978-11-15 | Ricoh Co Ltd | Copying apparatus for zerography |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5888664U (en) * | 1981-12-04 | 1983-06-16 | 富士通株式会社 | Toner full display device |
Also Published As
Publication number | Publication date |
---|---|
JPS6354179B2 (en) | 1988-10-27 |
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