Lexmark Z31 Color Jetprinter, Service Manual

Page: 16 / 62

2-2
Service Manual
4099
Power-On Self Test (POST) Sequence
Turn the printer on and check for a correct POST operation by
observing the following:
1. The power light comes on.
2. The carrier moves over the maintenance station three times and
seals the printheads.
3. The paper feed gears turn.
4. All motors stop and the power light stays on.
If your printer completes POST with no errors, go to the “Symptom
Tables” on page 2-3 , locate the symptom and take the indicated
action.
If your printer does not complete POST, locate the symptom in the
following table and take the indicated action.
POST Symptom Table
Symptom Action
No power light
and 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 Go to the “Carrier Transport Service Check” on
page 2-5 .
Carrier slams
side frame Go to the “Carrier Transport Service Check” on
page 2-5 .