Lexmark MB790MFP Service Manual page 129

7462
Error
code or
message
923.75 Fuser over
temperature failure.
Fuser type = 2
923.76 Fuser over
temperature failure.
Fuser type = 2
924.00 Open fuser thermistor
check
Fuser type = 1
924.01 Open fuser thermistor
check failure.
Fuser type = 1
924.25 Open fuser thermistor
check
Fuser type = 2
924.26 Open fuser thermistor
check failure.
Fuser type = 2
924.50 Open fuser thermistor
check
Fuser type = 1
Fuser page count has
exceeded life.
924.51 Open fuser thermistor
check failure.
Fuser type = 1
Fuser page count has
exceeded life.
924.75 Open fuser thermistor
check
Fuser type = 2
Fuser page count has
exceeded life.
924.76 Open fuser thermistor
check failure.
Fuser type = 2
Fuser page count has
exceeded life.
2-92
Service Manual
Error contents
The fuser hot roll has
exceeded the proper operating
temperature.
The fuser hot roll has
exceeded the proper operating
temperature.
The fuser thermistor might be
faulty.
The fuser thermistor has failed.
The fuser thermistor might be
faulty.
The fuser thermistor has failed.
The fuser thermistor might be
faulty.
The fuser thermistor has failed.
The fuser thermistor might be
faulty.
The fuser thermistor has failed.
Description/Action Possible repair actions
Replace the fuser unit
assembly if problem remains.
Go to "Fuser unit assembly
removal" on page 4-15.
Replace the fuser unit
assembly if problem remains.
Go to "Fuser unit assembly
removal" on page 4-15.
Replace the fuser unit
assembly if problem remains.
Go to "Fuser unit assembly
removal" on page 4-15.
Replace the fuser unit
assembly if problem remains.
Go to "Fuser unit assembly
removal" on page 4-15.
Replace the fuser unit
assembly if problem remains.
Go to "Fuser unit assembly
removal" on page 4-15.
Replace the fuser unit
assembly if problem remains.
Go to "Fuser unit assembly
removal" on page 4-15.
Replace the fuser unit
assembly if problem remains.
Go to "Fuser unit assembly
removal" on page 4-15.
Replace the fuser unit
assembly if problem remains.
Go to "Fuser unit assembly
removal" on page 4-15.
Replace the fuser unit
assembly if problem remains.
Go to "Fuser unit assembly
removal" on page 4-15.
Replace the fuser unit
assembly if problem remains.
Go to "Fuser unit assembly
removal" on page 4-15.
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