HP CP4525 50.7 fuser error

[myli]

Hello

There CP4525 device. Fuser and fuser drive assy . Despite the change of error 50.7 fuser error. Cables were checked. Reason you think.

Thanks

[redcow]

50.7 error = Fuser pressure-release mechanism failure
1. Reconnect the fuser-pressure release
sensor intermediate connector J60, and
connector J128 on the DC controller
PCA.
2. Run the sensor test in the sensor
monitor mode to verify that the fuser
pressure-release sensor is functioning
properly. If it is not, replace the fuser
pressure-release sensor.
3. Check the fuser pressure-release
sensor flag. If it is damaged, replace the
fuser.
4. Run the fuser pressure-release drive
test in actuator drive mode to verify that
the fuser motor is functioning properly.
If it is not, replace the fuser motor. See
fuser motor on p.200

[myli]

was the so-called service manual. But the problem being solved. Do you Have a different solution?

[myli]

I wonder what the area heat roller thermistor

[Big Al]

The heat roller thermistor is inside the gray roller. You have to disasemble the fuser, release the brass keeper on the end assembly and slide it off. The thermistor sits on the ceramic heater assembly. There are no directions in the service manual. They expect you to replace the fuser, which in your case may be a good idea.

Al