Paper Pickup Operation - Canon LASER CLASS 810 Service Manual

Chapter 5
The relationship between length detection sensor signals, document widths, and initially detected document sizes are as follows:
a. AB type
Size A3
B4
A4R
B5R
A4
A5R
B5
A5
b. INCH type
11 x 17
Size

5.2.4 Paper Pickup Operation

The pickup unit consists of pickup and transport rollers. When the Start Key signal or Document Pickup signal is input, the pickup clutch (CL2001) turns on to turn
the ADF pickup motor (M2001) in the normal direction. The pickup unit lowers and the pickup and transport rollers rotate to feed the paper. The shutter moves up
in conjunction with the pickup unit. A separation pad is used to prevent multiple sheets of paper from being transported at the same time.
After delivering the last sheet, the ADF pickup motor (M2001) turns in the reverse direction to raise the pickup unit to the original position.
5-6
SR2007
Document width sensor 1
ON
OFF
OFF
ON
ON
ON
OFF
OFF
Document width sensor 1
-
LGL -
LTRR -
LTR -
STMT -
SR2010
SR2009
F-5-7
T-5-6
Sensor name
Document width sensor 2 Document length sensor 1
ON
ON
OFF
OFF
ON
OFF
ON
OFF
T-5-7
Sensor name
Document width sensor 2 Document length sensor 1
ON
OFF
OFF
ON
OFF
SR2008
Document length sensor 2
ON ON
ON ON
ON OFF
ON OFF
OFF OFF
OFF OFF
OFF OFF
OFF OFF
Document length sensor 2
ON ON
ON ON
ON OFF
OFF OFF
OFF OFF
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