JPS6424281A - Device for switching development of developing apparatus - Google Patents
Device for switching development of developing apparatusInfo
- Publication number
- JPS6424281A JPS6424281A JP62181726A JP18172687A JPS6424281A JP S6424281 A JPS6424281 A JP S6424281A JP 62181726 A JP62181726 A JP 62181726A JP 18172687 A JP18172687 A JP 18172687A JP S6424281 A JPS6424281 A JP S6424281A
- Authority
- JP
- Japan
- Prior art keywords
- switching
- developing
- instrument
- reset
- state
- 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)
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE:To easily reset a developing instrument, by restoring a switching driving source to a state before switching it by driving in a reverse direction when the switching is not completed even by operating the driving source over for a prescribed time setting the above state as switching abnormality at the time of switching the switching instrument. CONSTITUTION:When the positioning rollers 45-48 of the developing instruments 12 and 13 are not set correctly at the reception parts 45-52 of guide plates 35 and 36, the collision of a part of the developing instruments 12 and 13 with a holding member 39 is generated on the middle way of a switching operation, and the cam plates 31c and 32c of switching means 31 and 32 are locked, and the switching operation is not completed, thereby, it follows that no ON and OFF signals of a switch 86 can be obtained. In such a case, a state is restored to the one before switching by rotating a motor 83 in the reverse direction, and furthermore, the switching abnormality and an instruction to reset the developing instrument is displayed on a display part. Also, when the developing instrument is not moved from a position before switching in spite of the start of the switching operation in an abnormal state, the motor 83 is turned OFF, then, the switching abnormality is displayed. In such a way, it is possible to reset the developing instrument easily and correctly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62181726A JP2569062B2 (en) | 1987-07-20 | 1987-07-20 | Developing device switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62181726A JP2569062B2 (en) | 1987-07-20 | 1987-07-20 | Developing device switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6424281A true JPS6424281A (en) | 1989-01-26 |
| JP2569062B2 JP2569062B2 (en) | 1997-01-08 |
Family
ID=16105806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62181726A Expired - Fee Related JP2569062B2 (en) | 1987-07-20 | 1987-07-20 | Developing device switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2569062B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61151576A (en) * | 1984-12-26 | 1986-07-10 | Canon Inc | Developing device |
| JPS62115469A (en) * | 1985-11-15 | 1987-05-27 | Canon Inc | Image forming device |
-
1987
- 1987-07-20 JP JP62181726A patent/JP2569062B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61151576A (en) * | 1984-12-26 | 1986-07-10 | Canon Inc | Developing device |
| JPS62115469A (en) * | 1985-11-15 | 1987-05-27 | Canon Inc | Image forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2569062B2 (en) | 1997-01-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |