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Hp lj 8150 error 50.1fuser error

Dear sir, i got hp lj 8150 printer, problem with 50.1 fuser error , for this matter i all ready installed new fuser unit , but still , i received the same error massage. so pls help me to fix this problem, as iseach in net i found problem of law voltage , so found some dry soldering in power board , i fix that also, still received the same masage , pls help me on this which component i need to replace thanks , sanjaya

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Re: hp lj 8150 error 50.1fuser error

Replace the LVPS and the fusing unit, you will also need to leave the machine off for 20 minutes to reset the error
(If anyone is in need of a free service manual, send me an email with info to reply and ill send you one)

Posted on Mar 05, 2010

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Re: hp lj 8150 error 50.1fuser error

I had the same message in the lj8150 and when I looked up in the manual it pointed me to the LVPS I replaced it and it is working fine

Posted on Jul 22, 2008

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Re: hp lj 8150 error 50.1fuser error

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.

Posted on Sep 23, 2007

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This is an update to:

HP LaserJet P4015 - Not Picking Up Paper

HP now recognise this as a manufacturing fault and have released a service note for it and will send you a new fuser free of charge. The description of the fault is:

When a print job is sent to the printer, the printer will display processing job on the control panel, and will continually ramp up and down attempting to print the job. After several minutes the printer will return to ready without posting any error messages. Occasionally, after several minutes the print job will print.

The fix for the fault is:

The fuser needs to be replaced and firmware needs to be upgraded to version 04.060.7 or higher.

The customer will need to download the latest firmware from, version 4.060.7 or higher. The firmware can be downloaded from hp at "" . Select Download drivers and software (and firmware) in step 1 and in step 2 type in the printer name, LJ P4014, LJ P4015 or LJ P4515

It's probably best to update the firmware before you phone HP to report the fault, or at least tell them you have. If you do update the firmware, you will notice some extra numbers and letters on the display when the printer initialises. This is normal, it's probably used by HP staff for diagnosis.

The fuser is a customer replaceable part, and does not require a service technician to install. If the customer requests a service technician to install the fuser the customer will be responsible for the labor. The fuser can be sent directly to the customer with instructions to upgrade their firmware.

What this means is that HP will send you a new fuser to fit yourself.

The models covered by this service note are:

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Start: 2010-01-01

Expiration: 2010-12-31

What this means, is that HP will send you a new fuser for this fault until the end of 2010, although they do sometimes extend the active time period for service notes.

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