12 The modem board could
not enable the NIB.
Replace the modem board.
651
Illegal Remote Service Dial-up
An expected error occurred when Cu-
min-M dialed up the NRS Center.
• Software bug
• No action is required because only the
count is logged
670 D
Engine startup error
The machine engine, controlled by the
BICU (Base Image Control Unit), was
operating incorrectly when the ma-
chine was switched on or returned to
normal operation from the energy save
mode.
• Check the connections between BICU and
controller
• BICU defective
• Controller board defective
• PSU defective
672 B
Controller startup error
After power on, the line between the
controller and the operation panel did
not open for normal operation.
After normal startup, communication
with the controller stopped.
• Controller stalled
• Controller installed incorrectly
• Controller board defective
• Operation panel harness disconnected or
defective
SC700: Peripherals
720 D
Finisher transport motor error
The encoder pulse of the finisher trans-
port motor does not change state
(high/low) within 600 ms and does not
change after 2 retries.
• Finisher transport motor defective
• Transport motor harness disconnected, or
defective
• Finisher main board defective
721 B
Finisher jogger motor error
Service Mode
265
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