Diagnostics-E340 And E342N 50; Power-On Self Test (Post) Sequence - Lexmark E238 Service Manual

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Diagnostics—E340 and E342n
Power–On Self Test (POST) sequence
The following is an example of the events that occur during the POR
sequence when the printer is turned on.
1. Diamonds are displayed on the operator panel.
2. While code is being loaded into DRAM, dots scroll across the operator
panel.
3. A screen is displayed with the memory and processor speed. A typical
example of this message is:
*
32 Mb
4. Performing Self Test is displayed.
5. Busy is displayed.
6. Close Door will be displayed if the cover is open.
7. Any cartridge errors, such as Defective Cartridge, are displayed.
8. Applicable maintenance messages are displayed.
9. Applicable toner low messages are displayed.
10. The printer displays Ready.
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