Question about HP LaserJet 8150 Printer

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50.1 Fuser Error on our HP 8150

We're getting a message 50.1 Fuser Error on our HP 8150. In researching this problem we read that it might not be the Fuser at all but a disintegrated solder joint on the middle pin of the Q600 voltage regulator.

Our question is how do we identify the Q600 voltage regulator now that we have the LVPS power supply disassembled.

We would appreciate any assistants that you can offer.

Please contact us at art.guns@bfmarketing.com

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1 Answer

You should replace the whole LVPS and not just the voltage regulator.

Posted on Jul 07, 2008

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The printer is HP LaserJet III . Please - what means the message "50 service " on the panel ? Thank you! MP


A 50.4 code is bad line voltage. Don't plug it in a surge protector.
Any other 50 error is a fuser problem. Turn the printer off for at least 10 minutes. Power it back on. If the error returns, replace the fuser.

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50.X FUSER ERROR Description A fuser error has occurred. Action
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Hello


A 50 Service error is a fuser error. Turn the printer off for at least 10 minutes, then turn it back on. If the error is still there, you can try reseating the fuser, but be sure to let the fuser cool completely before touching it.
If you still have the 50 Service error after reseating the fuser, you might need a new fuser.
You can access the fuser by opening the rear door. It's located directly above the paper tray. There are two screws that hold it in place. Remove those two screws, and the fuser slides outs.
Hope this helps.

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Unless someone else replies with the identical fault and remedy, my best suggestion is to get a copy of the service manual. There may be a fee but you will be sure of following the correct diagnostic procedure. It sounds like you are capable of this. Good luck.

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