JPS5483276A - Sheet feeder - Google Patents
Sheet feederInfo
- Publication number
- JPS5483276A JPS5483276A JP14934377A JP14934377A JPS5483276A JP S5483276 A JPS5483276 A JP S5483276A JP 14934377 A JP14934377 A JP 14934377A JP 14934377 A JP14934377 A JP 14934377A JP S5483276 A JPS5483276 A JP S5483276A
- Authority
- JP
- Japan
- Prior art keywords
- tray
- sheet
- sheets
- finish
- detector
- 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
- Controlling Sheets Or Webs (AREA)
Abstract
PURPOSE: To enable simply judging whether sheet jam or finish exactly by providing first detecting means for detecting existence of sheets on a sheet tray and second detecting means for detecting residual sheets on the tray.
CONSTITUTION: Sheets 2 are stacked on an elevationally movable sheet tray 1. The sheet finish on the tray 1 is detected by the alteration of reflecting light therefrom by a photoelectric sheet existence detector 7 provided to face with the upper surface of the tray 1 while feeding the sheets from the uppermost sheet. A detector piece 15 is further provided at part of an endless elevation belt 9 driven by the movement of the tray 1 for turning a detection switch 16 ON when the sheets on the tray 1 become predetermined number. When a signal from the detector 7 is dispatched before a signal from the switch 16 is dispatched, it is judged as sheet jam, and in inverted case to the above is judged as correct sheet finish.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14934377A JPS5483276A (en) | 1977-12-14 | 1977-12-14 | Sheet feeder |
US05/959,597 US4273323A (en) | 1977-11-24 | 1978-11-13 | Sheet feeding apparatus for copying machine, printing machine, etc. |
DE2850820A DE2850820C2 (en) | 1977-11-24 | 1978-11-23 | Device for feeding the top sheet of a stack of sheets to a processing station |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14934377A JPS5483276A (en) | 1977-12-14 | 1977-12-14 | Sheet feeder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5483276A true JPS5483276A (en) | 1979-07-03 |
Family
ID=15473030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14934377A Pending JPS5483276A (en) | 1977-11-24 | 1977-12-14 | Sheet feeder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5483276A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5713041A (en) * | 1980-06-24 | 1982-01-23 | Toshiba Corp | Paper quantity indicator |
JPS6456426U (en) * | 1987-09-30 | 1989-04-07 |
-
1977
- 1977-12-14 JP JP14934377A patent/JPS5483276A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5713041A (en) * | 1980-06-24 | 1982-01-23 | Toshiba Corp | Paper quantity indicator |
JPS6456426U (en) * | 1987-09-30 | 1989-04-07 | ||
JPH0547157Y2 (en) * | 1987-09-30 | 1993-12-10 |
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