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Error code Description
121.20
Fuser did not reach the required temperature
during steady state control.
121.21
Fuser low power trace heating rate exceeded error
threshold.
121.22
Open fuser relay was detected.
121.23
Fuser reached the required temperature during
final EWC/line voltage detection too late.
121.24
Fuser did not reach the required temperature
during final EWC/line voltage detection.
121.25
Control did not roll over to steady state control after
line voltage detection.
121.26
Fuser did not reach the required temperature
during warm up.
121.28
Fuser did not reach the required temperature
during EP warm up.
121.31
Fuser too hot.
121.32
Fuser did not reach the required temperature at
100% power.
121.33
Fuser did not reach the required temperature while
the page is in the fuser.
121.34
Fuser did not reach the required temperature
during steady state control.
121.35
Fuser too warm to power up and execute EWC/line
voltage detection after a wrong fuser was installed.
121.36
Open fuser relay was detected in very cold or
unknown ambient temperature.
121.37
Fuser heated too fast during final EWC/lline voltage
detection.
Diagnostics and troubleshooting
201
Action
See
"Fuser service check" on page
5028
203.
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