Ricoh B132 Service Manual page 428

SERVICE CALL CONDITIONS
SC144 D SBU communication error
When the machine is switched
on, or when the machine returns
to full operation from the energy
save mode, the machine can not
access the SBU register, or the
SBU register values are
abnormal.
SC161 D IDU error
After the command is written into the DFID
self-diagnosis startup register, the correct
value is not stored in the register for the
prescribed length of time after power on.
-or-
After the negate interruption of FGATE
occurs, IDU is not recognized within the
prescribed time during scanning.
Scanner fan lock
SC180 D
001
002
SC195 D Machine serial number error
The number registered for the machine
serial number does not match.
B132/B200
One of the fan motors next to the
exposure lamp did not switch on
within 0.5 sec after the CPU issued
the ON signal.
The scanner fan motor next to the
SIOB did not switch on within 0.5 sec.
after the CPU issued the ON signal.
• Dirty exposure glass or optics
• SBU board defective
• SBU harness disconnected, defective
• IPU board defective
(defective connection
between ASIC and DFID,
defective LSYNC)
• Fan defective
• Foreign object interfering
with operation of fan
• Motor harness loose,
disconnected, or broken
• SIOB defective
• SBU defective
• Confirm the correct serial
number of the machine in the
specifications
Important!
W
SERIAL NUMBER MUST BE
INPUT
YOUR TECHNICAL
SUPERVISOR
.
4-28
SC195 ,
HEN OCCURS THE
. P
LEASE CONTACT
.
SM