Question about Office Equipment & Supplies

2 Answers

Fuser error on the hp 3700dn printer

When I try to print on my 3700dn series hp printer it says fuser error 51 what do I do?

Posted by on


2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I have also run into this issue and have found a couple of ways that sometimes fixes the error and sometimes not. I am batting about 60/40 for fixing.

The easist one is to turn the printer off oh say when you go home and then thurn it on when you get in the next morning, or even during the day if it is not printing now.

You can also try to reseat the fuser and see if that works

if you happen to have another printer the same you can swap fusers and see if they both work.

here is what i got from an HP tech when I was having so many with the same issue, I have about 25 of these printers and the batch I got seemed to have had a batch of bad fusers because once I replaced the fusers I have noit had mostly no issues with them execpt for using generic toner cartridges.

they also highly suggest that the printer not be plugged into a power strip but to the wall

here is the steps from HP tech

3700 cold reset
All right. Let's perform a cold reset on the printer control panel to restore the factory default settings. To do that, steps:
NOTE: Please remove the network cable while performing the steps.
1. Turn the printer on.
2. As the printer performs its power-on sequence wait until the printer starts counting its memory.
3. Press and hold the SELECT button until all three lights on the control panel are lit.
4. When SELECT LANGUAGE appears on the display, press the arrow button until COLD RESET appears on the display.
5. Press the SELECT button. The printer will perform a cold reset and then continue its power-on sequence.

Posted on Mar 31, 2010

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 54 Answers

You need to replace the fuser since it is most likely caused by a bad fuser. The 50.1 error indicates a low fuser temperature which can be caused by a fuser failure or a DC controller failure. The HP part number for the fuser is Q3655-69001 for a 120V printer. You can also get the fuser as a replacement supply from your toner supplier the item number is Q3655A. Depending on how long you have owned your printer, the fuser needs to be replaced at 50 months or 75,000 pages which ever comes first.

Posted on Apr 13, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Issue With The Printer Sprinting Smiley Faces and Failing To Print.

The printer might not be Window 8 compatible. Please go to and check for compatibility.

May 20, 2015 | HP LaserJet 3700dn Printer

1 Answer

Reseat the fuser

Remove the fuser, reseat it, reset count.


Mar 06, 2015 | HP LaserJet 3700dn Printer

1 Answer

Printer hp 2055 fuser error 50.3

Re: hp laserjet 4100tn - 50.3 fuser error

A 50.3 error means that the temperature of the fuser got to high.
Just try switching it of for 20 minutes and try again.
If it happens during a large print job, this may help, if the error returns when powering up the machine, the fuser is faulty, but if so, that means it would have to be replaced.

If you are printing narrow media (A5, envelopes) etc. try printing them in small batches,, and allow the printer to cool of in between batches.

Apr 16, 2014 | HP Office Equipment & Supplies

1 Answer

Hp t1100 error 50.2

  1. Remove the printer from any UPS supplies, additional power supplies, or power strips.
  2. Plug the printer into a wall outlet to check whether this resolves the problem.
  3. If the printer is already plugged in, try another power source in the building independent of the one being used.
  4. The line voltage and current source at the printer location might need to be inspected to make sure that it meets the printer's electrical specifications.
  5. Turn the printer off then on.WARNING: Be careful when removing or reseating the fuser. Temperatures can reach 400+ degrees Fahrenheit.
  6. If the message persists, turn the printer off for 30 minutes to allow it to cool, then reseat the fuser after checking the internal wiring connections on the right and left side, ensuring that these connections are properly seated.
  7. If the 50.1 or 50.2 error recurs after power-cycling the printer or when trying to print, try installing a known good fuser from another HP LaserJet 4100 series printer, if available.
  8. If the fuser is near or at the end of its estimated life expectancy (approximately 200,000 pages), then replace the fuser. After replacing the fuser, print a Configuration page, a Menu map (shows fuser settings), an Event log, a Supplies status page, and a Usage page, to reference the status of the new fuser and to ensure that the previous fuser settings are in place with the replacement fuser. To print an Information page on the HP LaserJet 4100, perform the following steps
    1. Press the MENU rocker key until INFORMATION MENU appears on the printer display.
    2. Press the ITEM rocker key until PRINT CONFIGURATION (or until PRINT MENU MAP, etc, appears in the printer display.
    3. Press the SELECT button to print the selected information page.
    To print an information page on the HP LaserJet 4100MFP, perform the following steps
    1. Press the MENU button.
    2. Press the DOWN Navigation button until INFORMATION is highlighted.
    3. Press the RIGHT Navigation button.
    4. Press the DOWN Navigation button to highlight PRINT CONFIGURATION (or PRINT MENU MAP, etc, appears in the printer display.
    5. Press the SELECT button, the button with the checkmark on it to print the selected Information page.
  9. If 50.x errors persist after properly installing a known good fuser, or if the errors follow the questionable fuser (provided it is not near the end of its estimated life expectancy), contact HP for further assistance.
Removing and replacing the fuser

Mar 23, 2013 | HP Designjet T1100 Photo Printer

1 Answer

Jam in tray 2

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:

HP LaserJet P4014 Printer series, HP LaserJet P4015 Printer series, HP LaserJet P4510 Printer series.

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.

Hope it helps..

Thanks for using fixya......

Nov 08, 2010 | HP LaserJet P4014n Printer

4 Answers

What does 50.2 fuser error mean

The 50.2 error means your fuser is not heating up. You will need to order either just the fuser HP Part # RG5-7060 or the maintenance kit HP part # Q1860-69002. Check your local computer store or we can ship the parts to you. If you need additional information contact me at our web site below.

I hope this helps, if so please rate my solution.

Corporate Computer

Jul 17, 2009 | HP LaserJet 5100tn Printer

1 Answer

50.4 fuser error

     This fuser error can lead up to a series of solutions, and I will list them in order of easiest to hardest.

1) Unplug your printer from the wall, wait 5 minutes and plug it directly into the wall, UPS battery backups and Surge Protectors can trigger this type of error.

2) If you have another one of these printers, try swapping the fuser roller with another one while the power is off and see if the error persists upon startup.

3) Last and least desirable, you may have a failed Engine Controller Board, which is responsible for among many things, making sure the fuser is at the proper temperature and has no tears. Be aware that this repair requires a pretty serious disassembly, and can be daunting to a newcomer.

     The fuser is actually considered a part replaced with routine maintenance, around every 100,000 to 150,000 pages. It is what is responsible for the carrying the charged toner particles and heating them up to melt them onto the target paper (New HP Laserjets use a wax based toner for better environmental impact) Problems with the fuser generally show themselves as lines or splitting images on printed paper, but if serious enough (as in a tear on the roller) can cause the printer to cease printing to prevent serious damage to the interior of the machine.

May 06, 2009 | HP LaserJet 2420 Printer

1 Answer

HPLaserjet4P - printer service 50 -


A 50 Service error is a fuser error. Turn the printer off for 5 to 10 minutes, then turn it back on. If the error is still there, I think your going to need to make a service call you can try reseating the fuser, but be sure to let the fuser cool completely before touching it.
Good Luck the HP Laserjet 4p is a great printer.

Jan 28, 2009 | HP LaserJet 4 plus Printer

2 Answers

Hp laserjet 2840 all in one gives FUSER ERROR

For any fuser error, the first thing that should be done is replacing the fuser. If the error still shows up after wards, it could be the LVPS (Low voltage power supply) or a board.

May 26, 2008 | HP LaserJet 2840 All-In-One Printer

1 Answer

When you print it cimes on 50.1 fuser error and won't print

Your fuser lamp is not coming on. Reseat the fuser. If that does not help, your fuser will need to be replaced.

Mar 03, 2008 | HP LaserJet 2840 Printer

Not finding what you are looking for?
Office Equipment & Supplies Logo

Related Topics:

542 people viewed this question

Ask a Question

Usually answered in minutes!

Top Office Equipment & Supplies Experts


Level 3 Expert

102366 Answers


Level 3 Expert

2237 Answers


Level 3 Expert

76846 Answers

Are you an Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides