Canon NP6251 Service Manual page 628

24. E243
Cause Step
DC controller
PCB
Control panel
PCB
25. E710/E711
Cause Step
Malfunction
DC controller
PCB
26. E712
Cause Step
Malfunction
Connector
RDF controller
PCB
DC controller
PCB
27. E713
Cause Step
Malfunction
Connector
Sorter controller
PCB
DC controller
PCB
COPYRIGHT © 1997 CANON INC.
Checks
1 Turn on and off the power switch.
Is the problem corrected?
2 Replace the control panel PCB. Is
the problem corrected?
Checks
1 Turn on and off the power switch.
Is the problem corrected?
Checks
1 Turn off and then on the power
switch. Is the problem corrected?
2 Is the connector (J772) connecting
the RDF and the machine
securely connected?
3 Replace the RDF controller PCB.
Is the problem corrected?
Checks
1 Turn on and off the power switch.
Is the problem corrected?
2 Is the connector (J703) connecting
the sorter and the copier securely
connected?
3 Replace the sorter controller PCB.
Is the problem corrected?
CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 11 TROUBLESHOOTING
YES/NO Action
YES End.
NO Replace the DC
controller PCB.
YES End.
YES/NO Action
YES End.
NO Replace the DC
controller PCB.
YES/NO Action
YES End.
NO Replace the DC
controller PCB.
YES End.
NO Replace the DC
controller PCB.
YES/NO Action
YES End.
NO Replace the DC
controller PCB.
YES End.
NO Replace the DC
controller PCB.
11-97