Manual
140
Chapter 7
Diagnosing Problems
620:POWER VOLT
CHECK*
No Power Supply Voltage. The
power supply has failed.
Replace power supply board.
622:SHUTTLE
DRIVER CRCUIT*
No The shuttle driver circuit on
the controller board is
drawing too much current.
Contact your authorized service
representative.
1
623:STACKER FAULT Yes Stacker is not functioning
correctly.
Check for obstructions in the
stacker area. If fault persists,
contact your authorized service
representative.
1
624:UPPER DRIVER
SHORT*
No Upper Driver Short. Hammer
driver circuits on the boards
shorted to ground.
Cycle power to see if the
message clears, if not, contact
your authorized service
representative.
1
625:WRONG E-NET
Remove NIC
Yes Incompatible network
interface card (NIC) is
installed.
Install a compatible NIC to the
printer then reboot. If this
message still appears, contact
your authorized service
representative.
1
700:A TO D OVERUN* No Analog to Digital Overrun.
The analog-to-digital
converter overflowed.
Contact your authorized service
representative.
1
701:ACCESS NULL
POINTER*
No Access Null Pointer: The
processor tried to access a
pointer that contains nothing
(null).
Contact your authorized service
representative.
1
702:FIRMWARE
ERROR*
No Application software tried to
perform an illegal printer
function or damaged
memory detected on the
controller board.
Contact your authorized service
representative.
1
703:ILLEGAL
EXTERNAL BUS ACC*
No Illegal External Bus Access.
Firmware error on the
controller board.
Contact your authorized service
representative.
1
704:ILLEGAL
INSTRUCTION ACC*
No Illegal Instruction Accessed.
Firmware error on the
controller board.
Contact your authorized service
representative.
1
705:ILLEGAL
OPERAND ACCESS*
No Illegal Operand Accessed.
Firmware error on controller
board.
Contact your authorized service
representative.
1
706:PAP BAD TABLE* No Paper Bad Table. The paper
feed process on the
controller board has a
corrupted table.
Contact your authorized service
representative.
1
Table 10. LCD Message Troubleshooting Table
Displayed Message
Can User
Correct?
Explanation Solution