April, 2007 SERVICE CALL CONDITIONS 4-29
SBU (Sensor Board Unit) communication error SC144 D
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.
• Dirty exposure glass or optics
• SBU board defective
• SBU harness disconnected, defective
IDU (Image Discrimination Unit) error SC161 D
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.
• IPU board defective
(defective connection
between ASIC and DFID,
defective LSYNC-signal)
Scanner fan lock SC180 D
001
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.
002
The scanner fan motor next to the
SIOB did not switch ON within 0.5
sec. after the CPU issued the ON
signal.
• Fan defective
• Foreign object interfering
with operation of fan
• Motor harness loose,
disconnected, or broken
• SIOB defective
• SBU defective
Machine serial number error SC195 D
The number registered for the machine
serial number does not match. • Confirm the correct serial
number of the machine in the
specifications
Important!
WHEN SC195 OCCURS, THE
SERIAL NUMBER MUST BE
INPUT. PLEASE CONTACT
YOUR TECHNICAL
SUPERVISOR.
.