Question about HP LaserJet 8150n Printer

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51.1 printer error

Recently replaced lvps, now the printer gets this error:

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  • plittle81359
    plittle81359 Feb 16, 2009

    thank you. I have ordered the laser scanner assembly.



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You still have a LASER problem.

Posted on Feb 16, 2009


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122.10 service fuser error on c772 lexmark printer

It could be one of 3 things. I assume you already tried replacement of the fuser. IF ... that didnt work do the LVPS then the system board last. Also check the 115/220 switch on the LVPS.

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A 927.17 is a LVPS cooling fan failure: LVPS cooling fan is obstructed or has failed.

1. Check for cooling fan obstructions.
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1 Answer

Error 931

In most cases this error has something to do with the printers LVPS (Low Voltage Power Supply ).
If the printer is connected to power surge, try to connect it to an outlet from the wall. Do an An AC power check - check the AC line voltage at the end of the AC line cord. If the Ac line cord is incorrect, replace the cord.
Also check if the cord is in good condition. if not, replace the cord. If you still get the same errror, you may need to replace the printers' LVPS.
For further assistance assistance please contact Lexmark Technical Support.

Feb 09, 2012 | Lexmark C750 Laser Printer

1 Answer

We have an HP color laserjet CM6040 MFP that is displaying an unknown error message of 58.04 I have checked the service manual and that code doesn't exist. The event log shows the error as a device...

I am having error code of question mark (?) from Hp CM6040 MFP printer.... How can I olve this problem and what is the course?

I need your urgent respond
George Sunday
Tel: +234 806 560 7993

Jul 11, 2011 | Office Equipment & Supplies

1 Answer

HP Laserjet 4250 printer black band 1 inch top of page

Before replacing the LVPS, I surely would replace the toner and transfer roller at same time.

Dec 20, 2008 | HP LaserJet 4200n Printer

1 Answer

Low voltage power supply

What is the error message you are getting with the new fuser. Is this the same error you were getting before changing the fuser? If you changed the fuser because the old one was just at EOL ( end of life) but did not give you an error, have you tried to reinstall the old fuser.

It is possible that the new fuser was damaged in shipping, or not properly seated.

If both the new and old fuser give the same error message, then yes, I would agree that the LVPS would be the next part to replace, however, if they have different errors, then you probably have 2 bad fusers ( or one that is EOL, and one that was received damaged).

Before changing the LVPS, make sure you follow the steps below prior to the LVPS steps.
as far as where to purchase it if you do in fact need one, you can always do a google and ebay search for "Dell 5100cn LVPS".

I can provide you with replacement instructions if it comes to that.

See below for the actual troubleshooting needed for the fuser.
The following steps are the troubleshooting steps that should be followed for error code 010 397.
First, the definition of the failure is <IOT Fuser Failure>, and means a Fuser Error is detected.

1) With power off, reseat the fuser by physically removing it from the printer, then reinstalling it and locking it in place. Turn the power back on. ( if the error is still present, proceed to step 2 ).

2) If reseating the fuser did not resolve the problem, Replace the fuser with a known good fuser.
( if problem is not resolved, proceed to step 3)

3) Replace the LVPS ( low voltage power supply ). ( if problem not resolved, proceed to step 4 ).

4) Replace the PWBA MCU ( printed wiring board assembly - machine control unit ).

END of troubleshooting.........

Oct 23, 2008 | Dell 5100cn Laser Printer

1 Answer

IBM Infoprint 1352 won't power on

LVPS (low voltage power supply).
To get to it remove the right side cover (to do this, take the toner cart out and you'll see a screw on the inner right side, remove this. Remove the rear cover, the if you look through the top of the metal frame on the inner right side you'll see another screw, remove this. the cover will then come off.
Remove fuser assembly
Remove the LVPS mounting screws (2) from the rear of the bottom pan.
Pull the LVPS assembly far enough out from the right side of the printer to disconnect the fuser lamp cable.
The LVPS assembly may be difficult to remove from the printer. Do not use excessive force in the removal.
Remove the LVPS access plate.
Disconnect the interconnect card cable from the LVPS.
Remove the LVPS.

Aug 24, 2008 | IBM Infoprint 1352 Laser Printer

1 Answer


I just reviewed both of the above fuser issues (50.2 & 50.3). Both are highly likely (even if recently replaced) fuser damaged. I have included below a link to a free HP service manual for your machines. Start on page 309 using a volt/ohms meter to test the fuser. To address the "Guest" inquiry regarding the HVPS, there is a separate HVPS however please be aware that it is not part of the fusing circuit in this machine. If anything it would be the LVPS (Low Voltage Power Supply) however very remote. Odds are maybe 1 in 200 on your best day. I'd put 10 fusers in the machine before I bought 1 LVPS. This machine is known to eat fusers. The HVPS and LVPS at this time are just about bulletproof. PLEASE TRY TESTING THE FUSER AGAIN USING THE MANUAL PAGE 309 TO 311. If your really want the power supplies though, they are on the part number list at the end of the manual. I just looked it up and we have repaired 74 of machines to date with not one PS ever used. 59 of the 74 have been for fuser issues.

Here's the manual link:,%202830,%202840%20Parts,%20Service%20Manual.pdf

Hope that helps you both. :)

Jul 29, 2008 | HP LaserJet 2840 All-In-One Printer

1 Answer

50.1 Fuser Error on our HP 8150

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

Jun 10, 2008 | HP LaserJet 8150 Printer

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