Canon iR4570 Series Service Manual page 737

Code Detail Name
code
E537 0001
alignment
0002
(Finisher-Q3/
E540 8002
Stack tray
8003
motor error
(Finisher-S1)
Detection
The home
position sensor
does not go on
within 2000
msec after the
start of
operation
when the read
aligning plate
Rear
is moved to
home position.
error
The home
position sensor
Q4)
does not go off
within 1000
msec after the
start of
operation
when the rear
aligning plate
is moved form
home position.
The operation
to detect the
paper surface
of the stack
tray does not
end within 1.0
sec.
An abnormal
combination of
sensor states
has been
detected.
Remedy
Replace the finisher
controller PCB.
Replace the rear
alignment motor.
Check the rear aligning
plate drive mechanism.
Check the rear
alignment home
position sensor.
Replace the finisher
controller PCB.
Replace the tray ascent/
descent motor. Check
the stack tray drive
mechanism. Check the
paper surface sensor.
Replace the finisher
controller PCB. Check
the stack tray upper
limit sensor. Check the
stack tray lower limit
sensor. Check the stack
tray upper paper
surface sensor. Check
the stack tray lower
paper surface sensor.