Canon iR4570 Series Service Manual page 686

Code Cause
0002 During motor rotation, detection
is executed every 100 msec;
however, the drive signal is
absent 5 times in sequence.
E014 The rotation of the fixing motor is faulty.
0001 Detection is executed every 100
msec after the start of motor
rotation; however, the drive
detection signal is absent for 2
sec.
0002 During motor rotation, detection
is executed every 100 msec;
however, the drive signal is
absent 5 times in sequence.
E019 The waste toner case is full, or the waste toner case full sensor is faulty.
0000 When the waste toner case is
identified as being full for 2000
prints continuously, an alert is
issued; thereafter, the case is
identified as being full
continuously for 100 prints.
E020 The path between the sub hopper and the developing assembly is
clogged with toner.
0000 The developing assembly toner
sensor detects the absence of
toner, while the sub hopper toner
sensor detects the presence of
toner. With the developing
clutch turned on, the hopper
feedscrew motor is rotated for 1
sec intermittently 194 times;
still, the developing assembly
toner sensor does not detect the
presence of toner.
E024 The developing assembly connector is disconnected.
0000 The connection detection signal
is absent continuously for 100
msec.
Remedy
Replace the main motor. Replace
the DC controller PCB.
Replace the fixing motor. Replace
the DC controller PCB.
Replace the fixing motor. Replace
the DC controller PCB.
Replace the waste toner sensor.
Replace the DC controller PCB.
Replace the developing assembly
toner sensor. Replace the sub
hopper toner sensor. Replace the
DC control PCB.
Replace the developing assembly
toner sensor. Connect the
connector. Replace the DC
controller PCB.