6000 Broken fuser heater lamp wire
The temperature does not reach 100°C/
212°F after the fuser heater lamp has
been turned on continuously for 30 s.
30/31 ppm printer (EUR/USA model):
The temperature does not rise by 1°C/
1.8°F after the fuser heater lamp has
been turned on continuously for 5 s during
printing.
35/37 and 45/47 ppm printers (EUR/USA
model):
Fuser thermistor M detection
temperature does not rise by 1°C/1.8°F
after the fuser heater lamp has been
turned on continuously for 10 s during
warm-up or at standby.
Fuser thermistor S detection
temperature does not rise by 1°C/1.8°F
after the fuser heater lamp has been
turned on continuously for 5 s during
warm-up or at standby.
The temperature does not rise by 1°C/
1.8°F after the fuser heater lamp has
been turned on continuously for 5 s during
printing.
Poor contact in the
fuser thermistor M
connector terminals.
Reinsert the connector (See page P.1-5-19).
Fuser thermistor M
installed incorrectly.
Check and reinstall if necessary (See page
P.1-5-19).
Thermal cutout
triggered.
Check for continuity. If none, replace the
thermal cutout (See page P.1-5-19).
Fuser heater lamp
installed incorrectly.
Check and reinstall if necessary (See page
P.1-5-19).
Broken fuser
heater lamp wire.
Check for continuity. If none, replace the
fuser heater lamp (See page P.1-5-15).

You need to replace the fuser. 6000 means fuser error 0098269 is your page count