Canon iR4570 Series Service Manual page 171

[3]
[2]
[1]
[12]
[7]
[11]
F-5-1
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[5]
[4]
[6]
[10]
Item Notation
Original cover open/ PS501
closed sensor (rear)
Reader controller -
PCB
Original sensor 3 PS506
Original sensor 4 PS507
Original sensor 5 PS508
Reader motor M501
Reader heater* -
Original sensor 1 PS504
Original sensor 2 PS505
[7]
[8]
[9]
T-5-2
Description
photo interrupter: detects the state (open/
closed) of the copyboard cover; starts
original size indication when the original
cover is at 25 deg.
controls the drive of the reader unit, and
controls image processing
helps identify original size (for all
destinations)
helps identify original size (AB, Inch/
AB)
helps identify original size (Inch/A)
pulse motor: controls the drive of the
carriage
prevents condensation on the copyboard
glass
helps identify original size (AB, Inch/A,
Inch/AB)
helps identify original size (AB, A, Inch/
AB)