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Action
Step 20
a
Turn off the printer.
b
Replace the components that caused the error.
c
Turn on the printer.
Does the problem remain?
Step 21
Replace the controller board. See
page
247.
Does the problem remain?
912 errors
912 error messages
Error code Description
912.xx
Unrecoverable Engine firmware error
POR the machine. If the error re‑occurs, then
update the firmware. If the error continues
occurring, then check the controller board.
94y errors
94y error messages
Error code Description
940.xx
RIP to engine communication failure—the zero
crossing signal used for fuser control in the low
voltage (LV) power supply has failed, or the wrong
low voltage power supply has been installed.
948.xx
Failed engine card—pel clock check failed.
Replace the controller board.
949.xx
Failed engine card—delay line calibration failure.
Replace the controller board.
"Controller board removals" on
Diagnostics and troubleshooting
152
Yes
Go to step 21.
Contact the next
level of support.
Action
Go to
"Controller board service check" on
page
165.
Action
Go to
"LVPS service check" on page
Go to
"Controller board removals" on
page
247.
4514-6xx
No
The problem is
solved.
The problem is
solved.
140.
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