Lexmark E320 Service Manual - Page 62

POST, Symptom tables, E320/E322, POST symptom table

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4500-E320/E322 POST When you turn the printer on, it performs a power-on self test. Check for correct POST functioning of the base printer by observing the following: Symptom tables POST symptom table Symptom The main motor, cooling fan, and fuser do not come on. POST completes except one or more lights do not come on. None of the lights come on. Main motor does not come on. Fan does not come on. Fuser lamp does not come on. Fuser lamp never turns off. The paper feed picks and tries to feed paper. Action See the "Cover interlock switch service check (E320/E322) " on page 2-69. See the "Main motor service check " on page 2-77. See the "Operator panel service check " on page 2-79. See the "Main motor service check " on page 2-77. See the "Cooling fan service check (E320/E322) " on page 2-65. See the "Cold fuser service check " on page 2-64. See the "Hot fuser service check " on page 2-76. See the "Paper feed service checks " on page 2-81. 2-32 Service Manual

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2-32
Service Manual
4500–E320/E322
POST
When you turn the printer on, it performs a power–on self test.
Check for correct POST functioning of the base printer by observing
the following:
Symptom tables
POST symptom table
Symptom
Action
The main motor, cooling fan,
and fuser do not come on.
See the
“Cover interlock switch
service check (E320/E322) ” on
page 2-69
.
POST completes except one or
more lights do not come on.
See the
“Main motor service check ”
on page 2-77
.
None of the lights come on.
See the
“Operator panel service
check ” on page 2-79
.
Main motor does not come on.
See the
“Main motor service check ”
on page 2-77
.
Fan does not come on.
See the
“Cooling fan service check
(E320/E322) ” on page 2-65
.
Fuser lamp does not come on.
See the
“Cold fuser service check ”
on page 2-64
.
Fuser lamp never turns off.
See the
“Hot fuser service check ”
on page 2-76
.
The paper feed picks and tries
to feed paper.
See the
“Paper feed service checks ”
on page 2-81
.