3A6
1-3-4
(1)
The feedshift
solenoid does not
operate.
(2)
The feedshift motor
does not operate.
Broken feedshift solenoid
coil.
Poor contact of the
feedshift solenoid
connector terminals.
Defective main PCB.
Broken feedshift motor coil.
Poor contact of the
feedshift motor connector
terminals.
Defective copier main PCB.
Defective motor driver
PCB.
Check for continuity across the coil. If none, replace the feedshift
solenoid.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Run maintenance item U033 and check if CN16-4 and CN16-5
on the copier main PCB go low. If not, replace the main PCB.
Check for continuity across the coil. If none, replace the feedshift
motor.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Run maintenance item U030 and check if CN18-7 on the copier
main PCB goes low. If not, replace the main PCB.
Run maintenance item U030 and check if motor drive coil
energization signal is output at CN2-1, CN2-2, CN2-6 and CN2-5
on the motor driver PCB. If not, replace the motor driver PCB.
Problem Causes Check procedures/corrective measures
1-3-2 Electrical problems