Lexmark C950 Service Manual page 63

1xx service error codes
Error code
121.01
Service fuser error
121.03
Service fuser error
121.04
Service fuser error
121.05
Service fuser error
121.06
Service fuser error
121.07
Service fuser error
121.08
Service fuser error
121.09
Service fuser error
121.10
Service fuser error
121.11
Service fuser error
121.12
Service fuser error
Description
Encoder pulse fail
Heat belt (center) disconnection error
Heat belt (center) overheat error
Heat belt (rear) disconnection error
Heat belt (rear) overheat error
Heat belt (center) temperature
increase failure
Heat belt (rear) temperature increase
failure
Fuser temperature lag error
Heat belt rotation failure
Fuser temperature recovery failure.
Fuser failure
Action
No change was detected on the speed of
the belt for more than 1 second.
Go to
"121.01 Encoder pulse failure" on
page 2-46.
Open circuit is detected at the fuser heat
belt.
Go to
"121.03 Heat belt (center)
disconnection error" on page
Temperature in the heat belt has exceeded
the limit.
Go to
"121.04 Heat belt (center)
overheat error" on page 2-47.
Open circuit is detected at the fuser heat
belt.
Go to
"121.05 Heat belt (rear)
disconnection error" on page
Temperature in the heat belt has exceeded
the limit.
Go to
"121.06 Heat belt (rear) overheat
error" on page 2-48.
The temperature is late in reaching a
specified temperature within the specified
time.
Go to
"121.07 Heat belt (center)
temperature increase failure" on
page 2-49.
The temperature is late in reaching a
specified temperature within the specified
time.
Go to
"121.08 Heat belt (rear)
temperature increase failure" on
page 2-49.
The temperature is late in reaching a
specified temperature within the specified
time.
Go to
"121.09 Fuser temperature lag
error" on page 2-49.
Speed of belt rotation did not change
within the specified time.
Go to
"121.10 Heat belt rotation failure"
on page 2-50.
The status of the fuser temperature did not
switch at the specified time.
Go to
"121.11 Fuser temperature
recovery failure" on page
Wrong fuser is possibly installed or fuser
drive PCBA has failed.
Go to
"121.12 Fuser failure" on
page 2-51.
Diagnostic information
5058-030
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2-48.
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