Lexmark 5060-00x, Service Manual

Page: 80 / 490

2-46
Service Manual
5060-00 x
122 Error code
The printer has detected a problem in the fuser hot roll lamp circuitry, backup roll fuser circuitry, fuser hot roll
thermistor, backup roll thermistor, engine board, or LVPS fuser control circuits.
Replace the FRUs in the order shown:
1.
Fuser assembly. See “Fuser assembly removal” on page 4-31 .
2.
LVPS assembly. See “Low voltage power supply (LVPS) removal” on page 4-38 .
3.
Engine board. See “Engine board removal” on page 4-29 .
123 Error code
Cold fuser
The printer has detected a problem in the fuser hot roll lamp circuits, backup roll fuser lamp circuits, fuser hot roll
thermistor, backup roll thermistor, engine board, or LVPS fuser control circuits.
Replace the FRUs in the order shown:
1.
Fuser assembly. See “Fuser assembly removal” on page 4-31 .
2.
LVPS assembly. See “Low voltage power supply (LVPS) removal” on page 4-38 .
3.
Engine board. See “Engine board removal” on page 4-29 .
124 Error code
Hot fuser
The printer detects a problem with the fuser running over temperature or the hot roll fuser lamp has been on too
long. A problem may exist in the fuser assembly with the hot roll bearings, the hot roll thermistor, or other hot roll
parts. The LVPS or engine board assembly can also be failing.
Step Action and questions Yes No
1 Open the right fuser access door. Observe the fuser
and see if the hot roll lamp turns on and off. You may
have to observe the fuser for a few minutes.
Does the hot roll lamp turn off and on?
Go to step 2 Replace the LVPS
assembly. See
“Low voltage
power supply
(LVPS) removal”
on page 4-38
.
2 Turn the printer on and measure the voltage on
connector J10-11 on the engine board. The voltage
should measure approxi0.13 V dc to
+0.64 V dc as the hot roll lamp turns on and off.
Is the voltage correct?
Replace the fuser
assembly. See
“Fuser assembly
removal” on
page 4-31
.
Replace the engine
board assembly.
See
“Engine
board removal”
on page 4-29
.