Table of Contents
Advertisement
7462
Error
code or
message
937.81
Main drive motor
assembly failure
Driver over temp
detection.
Motor = type 1
945.xxx
Image processing unit
failure
950.xx
NVRAM mismatch
failure
2-104
Service Manual
Error contents
The main drive motor assembly
may be faulty or has failed.
The image processing ASIC or
DRAM has failed.
Mismatch between system
card EEPROM and operator
panel mirror.
".xx" codes:
00-29: mismatch between
system and mirror
30-60: mismatch between
secure and system
Description/Action
Possible repair actions
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
4-50.
1. POR the machine
2. If the problem remains,
replace the scanner
controller card. Go to
"Scanner controller card
assembly removal (model
MB790)" on page 4-129
"Scanner controller card
assembly removal
(MB780
)" on
page
4-132.
Warning: When replacing any
of the following components:
• Scanner interface card
assembly.
• System card assembly
Only replace one component at
a time. Replace the required
component and perform a POR
before replacing a second
component listed above. If this
procedure is not followed, the
printer will be rendered
inoperable. Never replace two
or more of the components
listed above without a POR
after installing each one or the
printer will be rendered
inoperable.
Never install and remove
components listed above as a
method of troubleshooting
components. Once a
component has been installed
in a machine, it can not be
used in another machine. It
must be returned to the
manufacturer.
Go to NVRAM mismatch failure
service check.
See
"NVRAM mismatch
failure (950.00 through
950.29) service check" on
page
2-151.
Previous
Next
Go Back
or
Advertisement
Table of Contents
