Error code Description Action
920.56 The fuser hot roll temperature does not increase
while the lamp is turned on.
Fuser page count has exceeded life. Replace the
fuser unit assembly.
Go to
“Fuser unit assembly removal” on
page 331.
920.57 The fuser hot roll temperature is not maintained
properly while the media in the fuser nip.
Fuser page count has exceeded life. Replace the
fuser unit assembly.
920.75 Fuser does not maintain proper operating
temperature within steady state control.
Fuser page count has exceeded life. Replace the
fuser unit assembly.
920.76 The fuser hot roll took too long to heat up after
transitioning to new enhanced mode within
standby control only.
Fuser page count has exceeded life. Replace the
fuser unit assembly.
920.77 The fuser hot roll fell to far below desired
temperature while in standby control.
Fuser page count has exceeded life. Replace the
fuser unit assembly.
920.78 The fuser hot roll is too cool while checking for
slope change in standby.
Fuser page count has exceeded life. Replace the
fuser unit assembly.
Go to
“Fuser unit assembly removal” on
page 331.
920.79 The fuser hot roll is too cool when heating to
desired temperature after slope change within
standby control only.
Fuser page count has exceeded life. Replace the
fuser unit assembly.
920.81 The fuser hot roll temperature does not increase
while the lamp is turned on.
Fuser page count has exceeded life. Replace the
fuser unit assembly.
920.82 The fuser hot roll temperature is not maintained
properly while the media in the fuser nip.
Fuser page count has exceeded life. Replace the
fuser unit assembly.
4062
Diagnostic information
199
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