JPS5768878A - Image formation device - Google Patents
Image formation deviceInfo
- Publication number
- JPS5768878A JPS5768878A JP14527380A JP14527380A JPS5768878A JP S5768878 A JPS5768878 A JP S5768878A JP 14527380 A JP14527380 A JP 14527380A JP 14527380 A JP14527380 A JP 14527380A JP S5768878 A JPS5768878 A JP S5768878A
- Authority
- JP
- Japan
- Prior art keywords
- course
- detecting
- copying
- lamp
- image formation
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/20—Humidity or temperature control also ozone evacuation; Internal apparatus environment control
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Atmospheric Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
PURPOSE:To minimize heat generation in the inside of a copying machine, by constituting a device so that a detecting operation by a detecting means is not operated, in the course of a process operation by an image formation means, and the detecting operation by the detecting means is operated in the course of stand-by in case of non-operation of the process. CONSTITUTION:Since a COPY signal is ''0'' in the course of stand-by, an inverter Q34 outputs ''1''. Therefore, an AND gate Q33 generates an output in accordance with an output of an oscillator OSC, a transistor Q32 repeats its turn-on and turn- off, and drives a lamp LA intermittently. On the other hand, in the course of copying, lighting of the lamp is stopped by ''1'' of the signal COPY. In this way, since a toner detecting function is stopped repeatedly when copying is being executed, heat generation is minimized although a tungsten lamp LA is placed in the proximity of a developing device. Also, it is possible to prevent a detecting malfunction due to a pulse noise from a clutch, a solenoid, etc., which is apt to occur in the course of the copying operation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14527380A JPS5768878A (en) | 1980-10-17 | 1980-10-17 | Image formation device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14527380A JPS5768878A (en) | 1980-10-17 | 1980-10-17 | Image formation device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5768878A true JPS5768878A (en) | 1982-04-27 |
JPS645710B2 JPS645710B2 (en) | 1989-01-31 |
Family
ID=15381316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14527380A Granted JPS5768878A (en) | 1980-10-17 | 1980-10-17 | Image formation device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5768878A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5835564A (en) * | 1981-08-28 | 1983-03-02 | Fujitsu Ltd | Detection for residual quantity of toner |
JP4876184B1 (en) * | 2010-10-18 | 2012-02-15 | シャープ株式会社 | refrigerator |
CN106927282B (en) * | 2015-10-14 | 2019-07-02 | 夏普株式会社 | Sheet material conveyor and the image forming apparatus for having it |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53108440A (en) * | 1977-03-04 | 1978-09-21 | Ricoh Co Ltd | Toner remainder detector |
JPS53129657A (en) * | 1977-04-19 | 1978-11-11 | Ricoh Co Ltd | Detecting method of quanity of one component type magnetic developer |
JPS53136844A (en) * | 1977-05-04 | 1978-11-29 | Ricoh Co Ltd | Toner residual quantity detector |
-
1980
- 1980-10-17 JP JP14527380A patent/JPS5768878A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53108440A (en) * | 1977-03-04 | 1978-09-21 | Ricoh Co Ltd | Toner remainder detector |
JPS53129657A (en) * | 1977-04-19 | 1978-11-11 | Ricoh Co Ltd | Detecting method of quanity of one component type magnetic developer |
JPS53136844A (en) * | 1977-05-04 | 1978-11-29 | Ricoh Co Ltd | Toner residual quantity detector |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5835564A (en) * | 1981-08-28 | 1983-03-02 | Fujitsu Ltd | Detection for residual quantity of toner |
JPH0226229B2 (en) * | 1981-08-28 | 1990-06-08 | Fujitsu Ltd | |
JP4876184B1 (en) * | 2010-10-18 | 2012-02-15 | シャープ株式会社 | refrigerator |
CN106927282B (en) * | 2015-10-14 | 2019-07-02 | 夏普株式会社 | Sheet material conveyor and the image forming apparatus for having it |
Also Published As
Publication number | Publication date |
---|---|
JPS645710B2 (en) | 1989-01-31 |
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