Diagnostic Aids for the HP CP4025 and CP4525 50.2 Fuser Error
The HP CP4025 and CP4525 50.2 Fuser Error means that a warm up issue has occured in the fusing assembly. While this error generally means you will be replacing the fusing assembly, there are a few things you might want to try first. Below you will find what the service manual has to say on the subject along with some advice on my own on the subject. Also, you will see links to the fuser removal and replacement instructions along with links to order in a replacement fuser if you decide that is the next step in getting your machine back up and running.
HP Color Laserjet Fuser Kit CP4025 CP4525
Service Manual Diagnostic Aids for the HP CP4025 and CP4525 50.2 Fuser Error
50.2 FUSER ERROR Fuser warm-up failure
1. Reinstall the fuser.
2. Check the connector J50 between the fuser and the product. If either is damaged, replace the connector or fuser.
3. Reconnect the connectors J160 and J162 on the DC controller PCA and connector J25 on the power line between the low voltage power supply and fuser.
4. Replace the wire harness that connects the fuser.
5. Replace the fuser. Link =Â HP CP4025 and CP4525 Fuser Replacement Procedure
6. If the error persists, replace the low voltage power supply
My Diagnostic Aids for the HP CP4025 and CP4525 50.2 Fuser Error
- Turn the machine off then back. Sometimes these errors can happen for  no apparent reason. Examples : Lightening Storms, Windy Days, and Electrical Work near by. If the machine experiences a sudden loss of power and doesn’t quite turn off it can generate this error.
- Turn the machine off and reseat the fuser. Unplug from the wall outlet and let it sit 15 to 20 minutes.
- If the machine was brought in from a cold environment let it sit for an hour or two to adjust to room temperature.
- Make sure cold air like an air conditioner or fan is not blowing directly on it. I’ve even seen canned air cause similar issues.
- Remove the fuser and check the connectors going into the heating element. I’ve never seen this on OEM units but I have seen poorly seated connectors on reman or third party units.
- Check the power source. Make sure the machine is plugged staight into a wall outlet and not on a powerstrip or battery backup device. I just worked on a machine the other day that was plugged into a power strip that was plugged into another power strip.
- If everything so far has failed then it is probably time to replace the fusing unit.
- Link =Â HP CP4025 and CP4525 Fuser Replacement Procedure
[wwcAmzAffProducts asin=”B00JPNBING”][/wwcAmzAffProducts]
