Duplo DP-S Series, Service Manual

Page: 184 / 298

183
z
Troubleshooting Guide
chap.6
(16) Malfunction of Master stepping motor
(17) "MASTER SET ERROR" is displayed
Cause/Detective section Procedures Result Countermeasure Items to be checked
1
Has "MASTER EJECTION ERROR"
actually occurred?
Does eject motor rotate normally?
YES
YES
Follow the procedure
3
.
5
Master clamp dirty.
Master ejection box
4
Is the master clamp section dirty with
ink or oil?
Is stripper finger or springs damaged?
YES Clean master clamp section.
YES Replace any damaged stripper finger or
springs.
Is the drum removal position within
reference value?
C mode
Drum removal position
NO
Adjust the drum removal position.
Check and adjust C mode. YES
6
Main PCB unit
Eject motor
NO
Check bundled wire and connectors
and replace main PCB unit.
Master eject jam sensor
Does replacing the master eject jam
sensor solve the problem?
Finish.
2
3
Refer to "(18) Malfunction of eject motor". NO
Cause/Detective section Procedures Result Countermeasure Items to be checked
24V power supply
1
Measure the voltage between CN2-1
and CN2-5 of the 24V power with the
tester. Is the v24V?
NO Replace the 24V power supply.
Load on drive system
2
Is trouble cleared by adjusting tension
of the master feeding unit timing belt or
supplying oil to bearing?
YES Finish .
Drive PCB Unit
3
Does replacing the drive PCB unit solve
the problem?
YES
YES
Finish.
Main PCB unit
Check bundled wire and connectors
and replace main PCB unit.