Power-On Self Test (Post) Sequence; Light Patterns And Error Messages - Lexmark E250D - E B/W Laser Printer Service Manual

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Power-On Self Test (POST) sequence

When the printer is turned on, it performs a POST. Check for correct POST functioning of the base printer by
observing the following process:
1.
All operator panel lights on momentarily
2.
Lights then flash on and off sequentially.
3.
After the lights quit flashing, the
seconds, depending on the initial temperature of the fuser) and then stays on.
4.
If there is a problem in the printer such as a paper jam, the panel lights indicate the problem. See
"Common primary light patterns" on page 2-3
5.
The printer cycles down into standby mode, and

Light patterns and error messages

User attendance messages, paper jam errors, and service errors display a light pattern. This may be all the
information that is needed. However, if
more detailed information. If
patterns have secondary patterns; when double-clicking, the pattern does not change.
All service errors are indicated by all lights flashing as the primary notification or code. The secondary code
indicates an area or function which has the error. Additional tertiary codes used for service (see
tertiary error codes" on page
Note: If data is sent to the printer and all lights flash immediately, and double-clicking does not change the
display, there may be a code problem. Contact the next level of support.
2-2
Lexmark™ E250d and E250dn
light flashes until the fuser comes up to temperature (5—20 additional
for more information.
is double-clicked on the panel, a second pattern may appear with
is double-clicked again, the first pattern usually returns. Not all initial level light
2-25) indicate specific errors. See
lights solid.
"Service codes" on page
"Service
2-23.