Lexmark P122 Photo Jetprinter Service Manual - Page 17

Diagnostic Information, Start

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4102-P01 2. Diagnostic Information Start If no error appears, go to "Power-On-Self-Test (POST) Sequence" 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 Action No motors run Go to the "Power Service Check" on page 2-11. Paper feed gears do not turn Go to the "Paper Feed Service Check" on page 2-8. • Carrier does not move • Carrier slams side frame Go to the "Transport Service Check" on page 2-14. • Blank display • All diamonds displayed after POST • Display difficult to read • Display OK, buttons do not function • One or more buttons do not function Go to the "LCD Assembly Display Service Check" on page 2-7. Diagnostic Information 2-1

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Diagnostic Information
2-1
4102-P01
2.
Diagnostic Information
Start
If no error appears, go to
“
Power-On-Self-Test (POST) Sequence
”
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
Action
No motors run
Go to the
“
Power Service Check
”
on
page 2-11
.
Paper feed gears do not turn
Go to the
“
Paper Feed Service
Check
”
on page 2-8
.
•
Carrier does not move
•
Carrier slams side frame
Go to the
“
Transport Service Check
”
on page 2-14
.
•
Blank display
•
All diamonds displayed after POST
•
Display difficult to read
•
Display OK, buttons do not function
•
One or more buttons do not function
Go to the
“
LCD Assembly Display
Service Check
”
on page 2-7
.