JPS6421467A - Sheet detector - Google Patents
Sheet detectorInfo
- Publication number
- JPS6421467A JPS6421467A JP62178443A JP17844387A JPS6421467A JP S6421467 A JPS6421467 A JP S6421467A JP 62178443 A JP62178443 A JP 62178443A JP 17844387 A JP17844387 A JP 17844387A JP S6421467 A JPS6421467 A JP S6421467A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- carrying
- discriminating means
- pulse
- generates
- 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 1
- 230000003287 optical effect Effects 0.000 abstract 1
Landscapes
- Counters In Electrophotography And Two-Sided Copying (AREA)
- Controlling Sheets Or Webs (AREA)
Abstract
PURPOSE:To accurately discriminate the carrying number of sheets, by arranging a detector in a direction orthogonal to the carrying direction of the sheet, and providing a sheet carrying number discriminating means consisting of a pulse generating means which generates a prescribed time pulse corresponding to the detection of the sheet and a circuit which takes the OR of pulses. CONSTITUTION:For example, three reflection type optical sheet detects 10-12 which detect the sheet P to be carried are arranged in line in the direction orthogonal to the sheet carrying direction between carrying belts 4 and 5, and are connected to the sheet carrying number discriminating means 14. The sheet carrying number discriminating means 14 is constituted of the pulse generating means 15-17 consisting of a monostable multivibrator which generates the pulse of time T replying to each rise of the output of the sheet detectors 10-12 and the OR circuit 18 which takes the sum of those pulses. In such a way, it is possible to count the number of carried sheets P by a counter 9 accurately.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62178443A JPH0786913B2 (en) | 1987-07-17 | 1987-07-17 | Sheet detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62178443A JPH0786913B2 (en) | 1987-07-17 | 1987-07-17 | Sheet detection device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6421467A true JPS6421467A (en) | 1989-01-24 |
JPH0786913B2 JPH0786913B2 (en) | 1995-09-20 |
Family
ID=16048611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62178443A Expired - Fee Related JPH0786913B2 (en) | 1987-07-17 | 1987-07-17 | Sheet detection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0786913B2 (en) |
-
1987
- 1987-07-17 JP JP62178443A patent/JPH0786913B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0786913B2 (en) | 1995-09-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |