Mar. 1999 © TOSHIBA TEC
9 - 11
6570/5570 PAPER FEED SYSTEM
3
Separation roller
This roller is responsible for allowing only one copy paper to pass through during a paper feeding
process. When more than one sheet of paper is present at the feed roller area, the tendency for
more than one paper to feed through. The separation roller reverse-rotates and that action pushes
the paper that is below the sheet that is to be fed, backwards thus not allowing it to be fed. Only
the top paper is fed through. The principle of co-efficient of friction is what allows the top sheet of
paper to be fed and not the lower sheet.
The following explains the switches for detecting paper presence, height of the tray and paper feed-
ing position to control the respective rollers ON and OFF.
4
Manual-feed switch
Detects if paper is set in the manual feed tray. If so, manual paper feeding takes priority over
cassette paper feeding.
5
Paper-empty switch
This photointerruptor sensor detects paper in the LCF. If there is paper in the LCF, the actuator is
lifted by the paper and the sensor detects the presence of paper.
6
Tray-up switch
When the tray is lifted to allow the paper set in the LCF to contact with the LCF pick-up roller, the
tray-up switch detects the height of the tray.
7
Paper-feed switch
Detects the leading/trailing edge of paper passing through the feed roller.
The switch is also used for paper jam detection.
Summary of Contents for 4580
Page 1: ...SERVICE MANUAL DIGITAL PLAIN PAPER COPIER 8070 6570 5570 4580 ...
Page 231: ...6570 5570 DEVELOPER UNIT 12 28 Mar 1999 TOSHIBA TEC 3 Draw out the toner filter ...
Page 252: ...8070 6570 5570 4580 FUSER UNIT 14 6A Mar 1999 TOSHIBA TEC ...
Page 369: ...8070 6570 5570 4580 ADF 16 78 Mar 2000 TOSHIBA TEC 16 13 PC Board 1 PWA F LGC 794 ...
Page 370: ...Mar 2000 TOSHIBA TEC 16 79 8070 6570 5570 4580 ADF 2 PWA F SEN 794 ...
Page 374: ...Mar 1999 TOSHIBA TEC 18 1 6570 5570 PC BOARD 18 PC BOARD 1 PWA F SYS 300 ...
Page 375: ...6570 5570 PC BOARD 18 2 Mar 1999 TOSHIBA TEC 2 PWA F MTB 300 ...
Page 376: ...Mar 1999 TOSHIBA TEC 18 3 6570 5570 PC BOARD 3 PWA F LGC 300 ...
Page 377: ...6570 5570 PC BOARD 18 4 Mar 1999 TOSHIBA TEC 5 PWA F MOT 300 4 PWA F ADU 300 ...
Page 378: ...Mar 1999 TOSHIBA TEC 18 5 6570 5570 PC BOARD 6 PWA F SLG 300 7 PWA F SDV 300 ...
Page 379: ...6570 5570 PC BOARD 18 6 Mar 1999 TOSHIBA TEC 8 PWA F PLG 300 ...