JPS6461740A - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JPS6461740A JPS6461740A JP62216395A JP21639587A JPS6461740A JP S6461740 A JPS6461740 A JP S6461740A JP 62216395 A JP62216395 A JP 62216395A JP 21639587 A JP21639587 A JP 21639587A JP S6461740 A JPS6461740 A JP S6461740A
- Authority
- JP
- Japan
- Prior art keywords
- document
- ejection
- feeder
- damage
- detection sensor
- 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
- 238000001514 detection method Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 2
- 239000002699 waste material Substances 0.000 abstract 1
Landscapes
- Holders For Sensitive Materials And Originals (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE:To prevent the damage of document and to eliminate the waste of an operating time by detecting whether the document is left or not, driving an automatic document feeder if the document is left and ejecting the document. CONSTITUTION:The detection of the left document is performed with a density detection sensor and a size detection sensor and the existence of the document is judged according to the output value and output difference from both sensors. It the document is left, an ejection sensor installed in the ejection roller part of a document feeder DF detects it and drives the DF so as to perform the ejection process of the left document. When the ejection process is performed, the DF is drive again to feed in the document which is going to be copied. Thus, the damage and the rimple, etc., of the document can be prevented in case where the document is fed in by using an automatic document feeder ADF without noticing the left document.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62216395A JP2582085B2 (en) | 1987-09-01 | 1987-09-01 | Image forming device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62216395A JP2582085B2 (en) | 1987-09-01 | 1987-09-01 | Image forming device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6461740A true JPS6461740A (en) | 1989-03-08 |
JP2582085B2 JP2582085B2 (en) | 1997-02-19 |
Family
ID=16687891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62216395A Expired - Fee Related JP2582085B2 (en) | 1987-09-01 | 1987-09-01 | Image forming device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2582085B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03227855A (en) * | 1990-01-30 | 1991-10-08 | Ricoh Co Ltd | Document read device |
JP2010224241A (en) * | 2009-03-24 | 2010-10-07 | Fuji Xerox Co Ltd | Image reading apparatus, copying machine and program |
-
1987
- 1987-09-01 JP JP62216395A patent/JP2582085B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03227855A (en) * | 1990-01-30 | 1991-10-08 | Ricoh Co Ltd | Document read device |
JP2010224241A (en) * | 2009-03-24 | 2010-10-07 | Fuji Xerox Co Ltd | Image reading apparatus, copying machine and program |
Also Published As
Publication number | Publication date |
---|---|
JP2582085B2 (en) | 1997-02-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |