Diagnostic Information; Start; Power-On-Self-Test (Post) Sequence; Post Symptom Table - Lexmark P122 Photo Jetprinter Service Manual

Service manual
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4102-P01

2. Diagnostic Information

Start

If no error appears, go to
on page
2-1.

Power-On-Self-Test (POST) Sequence

Plug the printer in and check for a correct POST operation by
observing the following:
1. One row of squares are displayed.
2. The paper feed motor runs and the gears turn.
3. The carrier moves three times to the left. The carrier returns to
the maintenance station and seals the printhead.
4. Two rows of diamonds are displayed.
5. The code level is displayed.
6. The name is displayed.
7. The date is displayed
8. Ready is displayed.

POST Symptom Table

Symptom
No motors run
Paper feed gears do not turn
• Carrier does not move
• Carrier slams side frame
• Blank display
• All diamonds displayed after POST
• Display difficult to read
• Display OK, buttons do not function
• One or more buttons do not function
"Power-On-Self-Test (POST) Sequence"
Action
Go to the
page
2-11.
Go to the
Check" on page
Go to the
on page
Go to the
Service Check" on page 2-7
"Power Service Check" on
"Paper Feed Service
2-8.
"Transport Service Check"
2-14.
"LCD Assembly Display
Diagnostic Information
.
2-1

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