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3-50 magicolor 330 - Base Engine Service Manual
Primary FIPS: Error Messages
3.45 - Error Message: Call for Service Fuser Temp High
There is a problem with the Fuser.
Based on the Thermistor signal indicating that the Fuser had reached the set overheat temperature, logic control on
the MCU PWB shutdown Fuser operation.
Step Actions and Questions Yes No
SUSPECT COMPONENTS
The following components are associated with this specific prob-
lem. One or more of these components may have failed partially or
completely. If you cannot isolate the problem using this FIP,
replace each component listed below, one at a time, until the prob-
lem disappears.
• Main Fuser Assembly (RRP 9.81)
• Wiring and connectors linking the components
1
PRINTER RESTART
1. Switch off printer main power.
2. Wait 45 minutes for the Fuser to cool.
3. Switch on printer main power.
Does the error message still appear?
Go to step 2 Treat as inter-
mittent. If
problem reoc-
curs, resume
troubleshoot-
ing at step 2.
2
FUSER FAN INSPECTION
Observe the Fuser Fan.
Does the Fan rotate smoothly?
Go to step 4 Go to step 3
3
Replace the Fuser Fan (RRP 9.108)
Does the error message still appear?
Got to step 4 Problem
solved
4
Replace the Temperature Sensor Assembly (RRP 9.88)
Does the error message still appear?
Got to step 5 Problem
solved
5
Replace the LVPS Assembly (RRP 9.119)
Does the error message still appear?
Go to step 6 Problem
solved
6
Replace the MCU PWB (RRP 9.123)
Does the error message still appear?
Go to suspect
components
Problem
Solved