Lexmark MX71X - Page 249

Error code Description Action
121.26 Fuser failed to reach temperature during
warm up
Go to
“Fuser service check” on page 250.
121.28 Fuser failed to reach EP warm-up
temperature in time
121.29 Fuser failed to reach preheat temperature
for motor start during warm up
121.30 Fuser failed to reach printing temperature
by the time a page got to the fuser
121.31 Fuser has gotten too hot
121.35 Attempting to reset the printer after
receiving a 121.34
If the problem remains, replace the
controller board.
Go to
“Controller board removal” on page 422.
121.36 Fuser did not heat to allow compression
jog
Go to
“Fuser service check” on page 250.
121.32 Open fuser main thermistor
If the problem remains, replace the fuser.
Go to
“Fuser removal” on page 556.
121.33 Open fuser edge thermistor
If the problem remains, replace the fuser.
121.34 Open fuser backup roll thermistor
If the problem remains, replace the fuser.
121.37 Fuser heated faster than allowed during
line voltage detection (115V fuser in 220V
machine)
If the problem remains, replace the fuser.
121.48 Fuser Hardware type does not match fuser
driver loaded (for example, lamp hardware
or belt firmware)
If the problem remains, replace the fuser.
121.49 Fuser backup roll too hot while printing
non-wide media
If the problem remains, replace the fuser.
7463
Diagnostic information
249