2RV/2RW/2RX/2RY/3RA-3
7-85
C6250: Fuser edge thermistor low temperature error
During printing, the fuser edge thermistor detected less than 60°C/140°F for consecutive 3s or more.
4 Checking the connection The connector is not prop-
erly connected or the wire
is faulty.
Clean the terminal of the fol-
lowing wire connectors and
reconnect the connectors. If
there is no continuity, replace
the wire.
• Low voltage PWB (YC103)
- Main/engine PWB (YC20)
5 Replacing the low voltage
PWB.
The low voltage PWB is
faulty.
Replace the low voltage
PWB.
6 Replacing the main/engine
PWB
The main/engine PWB is
faulty.
Replace the main/engine
PWB.
Step Check description Assumed cause Measures Reference
1 Reinstalling the fuser unit The fuser unit drawer con-
nector is not inserted com-
pletely.
Reinstall the fuser unit so that
the drawer connector is con-
nected securely.
2 Checking the connection The connector is not prop-
erly connected or the wire
is faulty.
Clean the terminal of the fol-
lowing wire connectors and
reconnect the connectors. If
there is no continuity, replace
the wire.
• Fuser unit - Main/engine
PWB (YC19)
3 Replacing the fuser unit The fuser edge thermistor
is faulty and cannot detect
correct temperature.
Replace the fuser unit.
4 Checking the connection The connector is not prop-
erly connected or the wire
is faulty.
Clean the terminal of the fol-
lowing wire connectors and
reconnect the connectors. If
there is no continuity, replace
the wire.
• Low voltage PWB (YC103)
- Main/engine PWB (YC20)
5 Replacing the low voltage
PWB.
The low voltage PWB is
faulty.
Replace the low voltage
PWB.
6 Replacing the main/engine
PWB
The main/engine PWB is
faulty.
Replace the main/engine
PWB.
Step Check description Assumed cause Measures Reference