2-68 Service Manual
4500
Controller card assembly
(continued)
Note: With all cables connected, the
printer should complete
POST within approximately
12–15 seconds in the
following sequence:
1. All operator panel lights on solid
momentarily.
2. Lights then flash on and off
sequentially.
After lights quit flashing, the
Ready/Data light turns on solid.
3. The cooling fan comes on.
4. The fuser lamp comes on.
5. The drive motor runs.
6. The printhead motor runs.
7. The printer cycles down into
standby mode/ready.
If immediately following power–on
the operator panel lights are active
but the printer does not go through
steps 1 and 2 above, replace the
controller card assembly.
Note: U.S. versus non–U.S. and the
printer configuration ID can
be reset. See “Printer
diagnostics mode ” on
page 3-40 for more
information.
If some lights are on or flashing,
see “Status information light
patterns ” on page 2-38 to
determine a course of action.
FRU Action
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