Xerox B310 Service Manual page 98

Diagnostics and Troubleshooting
Error code
121.53
121.71
F F u u s s e e r r S S e e r r v v i i c c e e C C h h e e c c k k
Action
Step 1
Make sure that the fuser is
properly installed.
Does the problem remain?
Step 2
Check whether the fuser installed
is genuine and supported by the
printer model.
Is the fuser a genuine and
supported Xerox unit?
Step 3
Check if the fuser type is
compatible with the printer model.
Are the fuser and printer
compatible?
Step 4
Check the fuser life.
Has the fuser reached its end of
life?
Step 5
Replace the fuser. See Fuser
removal.
Make sure that the new fuser is
supported by the printer model.
Does the problem remain?
Step 6
Make sure that the voltage output
of the electrical outlet matches
the voltage rating of the printer.
Does the problem remain?
98 Xerox B310 Printer
®
Service Manual
Description
Main thermistor temperature
change rate is out of range.
Open fuser main heater thermistor
was detected.
Yes
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Go to step 6.
Go to step 7.
Action
No
The problem is solved.
Go to step 5.
Go to step 5.
Go to step 6.
The problem is solved.
The problem is solved.