2-104 Service Manual
7462
937.81 Main drive motor
assembly failure
Driver over temp
detection.
Motor = type 1
The main drive motor assembly
may be faulty or has failed.
1. Check all connections on
the system card assembly.
2. Check all connections on
the main drive motor
assembly.
3. Replace the main drive
motor assembly. Go to
“Main drive motor
assembly removal” on
page 4-20.
4. Replace the system card
assembly if problem
remains. Go to “System
card assembly removal”
on page 4-47.
940.00 LVPS failure LVPS zero cross test failure Replace the LVPS card
assembly. Go to “LVPS card
assembly removal” on
page 4-45.
945.xxx Image processing unit
failure
The image processing ASIC or
DRAM has failed.
1. POR the machine
2. If the problem remains,
replace the scanner
controller card. Go to
“Scanner controller card
assembly removal (model
X658)” on page 4-127 or
“Scanner controller card
assembly removal
(models X651, X652, X654
and X656)” on
page 4-129.
Error
code or
message
Error contents Description/Action Possible repair actions