JPS5699143A - Feeding error sensor of paper feeder device - Google Patents
Feeding error sensor of paper feeder deviceInfo
- Publication number
- JPS5699143A JPS5699143A JP17109479A JP17109479A JPS5699143A JP S5699143 A JPS5699143 A JP S5699143A JP 17109479 A JP17109479 A JP 17109479A JP 17109479 A JP17109479 A JP 17109479A JP S5699143 A JPS5699143 A JP S5699143A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- unit
- feeding
- feeder device
- drop
- 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.)
- Pending
Links
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Controlling Sheets Or Webs (AREA)
Abstract
PURPOSE: To sense off error in feeding sheets of paper by a pneumatic attraction type paper feeder device and to allow the unit to stand by, taking the initial position in the sequence of the unit, when any error in feeding is sensed by such an arrangement as sensing the drop of suction pressure for attraction of sheets of paper, i.e. the drop of vacuum.
CONSTITUTION: In this paper feeder device, the leading edge of a sheet of paper attracted by a suction cup 2 is transported to and held by a leading edge suction hole 3a excavated in a rotary drum 3, and the whole sheet is wound round this drum 3, where the trailing edge of the sheet in held by another suction hole 3b. Now, the device is equipped with a pressure switch 6 to sense off the drop of pressure in a vacuum pump 1, and paper feeding condition can be estimated by actuation/deactuation of this pressure switch 6 --- that is to say, actuation of the pressure switch 6 will inform us that any miss-feeding has arisen and we must stop the unit and give an alarm, and replace the unit to the initial position in the sequence of the unit.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17109479A JPS5699143A (en) | 1979-12-31 | 1979-12-31 | Feeding error sensor of paper feeder device |
US06/219,757 US4369964A (en) | 1979-12-31 | 1980-12-23 | Sheet feed apparatus for printer or the like |
DE19803049621 DE3049621A1 (en) | 1979-12-31 | 1980-12-31 | SHEET FEEDER FOR PRINTER |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17109479A JPS5699143A (en) | 1979-12-31 | 1979-12-31 | Feeding error sensor of paper feeder device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5699143A true JPS5699143A (en) | 1981-08-10 |
Family
ID=15916870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17109479A Pending JPS5699143A (en) | 1979-12-31 | 1979-12-31 | Feeding error sensor of paper feeder device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5699143A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6360843A (en) * | 1986-08-29 | 1988-03-16 | Toyota Motor Corp | Method and device for transporting workpiece by using adsorbing pad |
JPS6342645U (en) * | 1986-09-04 | 1988-03-22 |
-
1979
- 1979-12-31 JP JP17109479A patent/JPS5699143A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6360843A (en) * | 1986-08-29 | 1988-03-16 | Toyota Motor Corp | Method and device for transporting workpiece by using adsorbing pad |
JPS6342645U (en) * | 1986-09-04 | 1988-03-22 |
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