Canon iR4570 Series Service Manual page 739

Code Detail Name
code
E577 8001
Paddle error
(Finisher-S1)
8002
E584 0001
Shutter unit
(Finisher-Q3/
0002
Detection
The paddle
home position
sensor does not
go on within
1.5 sec when
the paddle is
shifted to
home position.
The paddle
home position
sensor does not
go off within
1.0 sec when
the paddle is
moved to
home position.
The shutter
open sensor
does not go off
(i.e., the
shutter does
not close).
error
The shutter
Q4)
open sensor
does not go on
(i.e., the
shutter does
not open).
Remedy
Check the paddle
motor. Check the
paddle home position
sensor. Replace the
finisher controller
PCB.
Check the stack edging
motor. Check the open/
close clutch. Check the
shutter home position
sensor. Replace the
finisher controller
PCB.