Ricoh D009 Service Manual page 252

SC Tables: SC6xx
disconnected, or damaged
1. Replace the BICU
2. Replace the controller board
BICU error
The model code from the BICU is not correct when the machine is turned
671 D
on.
Install the correct BICU for this model.
Controller-to-operation panel communication error at startup
After the machine is powered on, the communication between the
controller and the operation panel is not established, or communication
with controller is interrupted after a normal startup.
After startup reset of the operation panel, the attention code or the
attention acknowledge code is not sent from the controller within 15
seconds.
After the controller issues a command to check the communication line
with the controller at 30-second intervals, the controller fails to respond
672 D
twice.
Controller stalled
Controller board installed incorrectly
Controller board defective
Operation panel connector loose or defective
The controller is not completely shutdown when you turn the main
switch off.
Check the setting of SP5875-001. If the setting is set to "1 (OFF)", change it
to "0 (ON)".
687 D Memory address (PER) command error
The BICU does not receive a memory address command from the controller
for the prescribed time after the paper has reached the registration sensor.
D009/D011/D012/D013 4-26 SM