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HP Color LaserJet 2820

Scanner Error 5 It says turn off and then on, this does not help. It makes a terrible grinding noise and the scanner bulb does not move.

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  • rajetta Feb 19, 2008

    Exact same problem. Please help!

  • agalan Mar 12, 2008

    Same problem. I took it to two different repair people and guess what...the error did not reproduce in their shop! Only when I brought it back to the office did it start again. help!

  • Anonymous Apr 01, 2008

    Turned it off and on several times and unplugged, etc. It has a clicking sound.

  • Anonymous May 07, 2008

    Same problem. is there any way to fix the unit? and not replace it?

  • gfhggdgh May 15, 2008

    Scanner Error 5 It says turn off and then on

  • Anonymous May 22, 2008

    making noise and scanner bulb moving right imitating the noise.I checked the trailing cable,stepper motor they are ok

  • jajiala Dec 01, 2008

    hp colour laserjet 2820 printer prolbems

  • ladihammond Dec 28, 2008

    I have had the same problem for months. Any solutions? And why does the printer suddenly makes callibrating noises?

  • zainb_itteac Feb 08, 2009

    I have the same problem that
    Scanner Error 5 It says turn off and then on
    and i off and then i turned on but still same problem i tried to play with menu and service and system setup but still

    plz help me quickly

  • Anonymous Apr 24, 2009

    hp color lj 2820 scanner error

    5 is displayed on panel

  • Anonymous Apr 24, 2009

    scanner error 5 is displayed on lcd panel,turn off and then on printer,wants to know the home position sensor



6 Answers

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The flat bed scanner assy is bad and needs to be replaced. The part number is Q3948-60191. Hp recomends taking it to a repair center for replacement

Posted on Mar 17, 2008

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I had/have the same problem. Actually my friend has a same printer:-( So i was able to change the stepping motor and it actually solved the problem. The only problem I recently have the HP service station would change the whole scanning bed for a fortune:-( At the same time they are not willing to sell a stan-alone stepping motor so I have been haunting for one since ever..

Posted on Aug 18, 2010

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Looks you have to replace Stepping Motor, m35sp-9t. Problem is where to find?

Posted on Jun 22, 2010

Color laserjet 2820 error scanner 5 étein puis rall

Posted on Nov 05, 2008

Not remplaced now,,, check de wire to connect the flattbed scanner to other side.... a fix the same problem only move the wire ... check this option before buy the flat bed

Posted on Aug 20, 2008


I have the same problem, with the scanner, and sometimes with the printer freezing. for the scanner to work i have to connect the usb and for the printer i have to connect the cat 5. This configuration work for a while until it start freezing up again. I called the HP Support and they blaming the software issue, i was told told to reinstall the drivers. It works for awhile, and I have the same issue all over again. So I called the HP Support and I was on hold for an Hour in half till someone finally answer. And when someone finally answer, they told me the same exact thing. Turn off the printers, restart your PC, and reinstall your software.

I think that this particular model that i have is a lemon, but I been calling them again and let their technician deal with.

Posted on Jun 19, 2008

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Posted on Jan 02, 2017

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1 Answer

5120 code error

Any of these error codes (51.20 51.21 51.22 51.23) points to a failure with one of the laser scanner assemblies on the HP Color LaserJet 4610 an 4650 series. To solve these error codes, replace the corresponding laser scanner. Sometimes when the laser scanner fails you will also hear loud noises (often higher-pitched noises like screeching sounds); the noises can be another sign that the laser scanner needs replacing.

For help press
alternates with
A printer error has occurred.
X Description
1 beam detect error
2 laser error
Y Description
0 no color / black
1 Press to continue.
2 Turn the printer off and then on.
3 Reseat the connectors between the
laser/scanner and DC controller PCA
(J1009 - J1012).
4 Replace the defective laser/scanner
assembly. Calibrate the printer after
replacing the laser/scanner.

Mar 17, 2014 | HP LaserJet 4650n Printer

1 Answer

2820 error 2

Kevin_Trenow is correct with his solution to the HP colour Laserjet 2820 error code 5 problem - Thank you.

The symptoms are that the machine turns on but after initial movement of the lighted up scanner, there is a disturbing ratcheting noise as if the scanner is trying to move but can't. The machine comes up with error 5 and suggests turning off and on again - this is a waste of time.

1. The top document feeder is released by detaching the multiplug and simply (carefully) removing the whole section.

2. This allows the removal of 8(?) screws from the second layer which contains the glass platform. The screw heads were removed using a star drive, labelled CR-V T10. (Buy Draper 31 piece Precision Screwdriver and Bit set; part no. PSS31)

3. Carefully lever off the grey surround with button labels on it - probably between 6 and 8 clips attach it.

4. Now lift/gently lever off the glass containing layer.

5. Use a spectacle wipe or erquivalent to wipe the glass over the white strip (This is the problem - the scanner light needs feedback from the white strip to end up in the correct position - the 'ratcheting noise is caused as the stepper motor continually moves the head to find the feedback point)
NB. The glass above the white strip will look perfectly clean - looks can deceive!

6. Replace the glass containing layer, ensuring it is clipped in - don't screw up yet in case more cleaning is required

7. Turn on and the scanner light should end up in the required position.

8. Replace screws, replace lid, push on grey panel and you should have a fully working machine for the price of a spectacle wipe.

Mar 13, 2012 | HP LaserJet 2820 Printer

1 Answer

Hp colour laserjet 2820 keeps coming up with error 5. i've turned off and then on but keeps coming up with the same error. is it the bulb?

Step1: Open flat bed galss & optical scanner assm, clean flat bed glass, as well as clean internal reflecting glasses in optical scanner, ensure that don't use any kind of cleaners to clean the reflecting glasses, use ear buds to clean gently..Step 2: Replace optical scanner assembly..

Oct 24, 2011 | HP LaserJet 2840 All-In-One Printer

1 Answer

HP LaserJet 2840 and the scanner not working it stops suddenly and has some noise it says on the screen error5 I turn it off and again on but still not working, thanks

Scanner 5 error is usually caused by a failed scanner head drive motor. HP does not sell that part by itself, you must buy a new flatbed assembly. Can sometimes be caused by dirty mirrors, check my tips on cleaning the scanner on the 3380 as it is the same procedure.

May 18, 2011 | HP LaserJet 2820 Printer

1 Answer

Scanner error 5 when turned on

scanner assy. needs to be replaced (the upper part with glass)
order from hp scanner assy. and machine will work as new again.

Sep 23, 2010 | HP LaserJet 2820 Printer

2 Answers

Hp 2820 scanner error 5

I'm not sure if this will help or if this is the same as i had but I had been given A laserjet 2820 which keep't coing up scanner error 5 the chap that had it before me contacted hp service & was told to replace scanner unit which he did & it was ok for a while like 6 months & started then started again.
The problem he had was powered up ok till it came to scanner bulb warming up the scanner unit moves back & forth then try's to escape through the right hand side of case.
This is because it cant see the home position white strip under the scanner glass all you have to do is remove top section of the scanner unit complete with scanner glass & clean the under part of the scanner glass the white strip is located under the wide gray panel as you look down on the scanner glass with the lid up. hope this is of some use. my unit has been working for some time now

Dec 29, 2008 | HP LaserJet 2820 Printer

5 Answers

HP Printer Color LaserJet 2840 Printer makes clicking noise and shows on display: Scanner bulb warming up - scanner error 5 Turn off then on but this does not work. Is it mechanical problem or software...

I Have A HP Laserjet 2820 on power up went through to scanner bulb warming up then made a clicking noise comming from scanner unit it was trying to escape the case. if this is the same as yours the problem is that the scanner unit can't find the home position strip mounted betweent the gray case wide piece right hand side as you look down on scanner unit with lid up & the top of the scanner glass inside the scanner unit to get to it you must remove top section of the scanner unit & cleean underside of scanner glass please E-mail me if you want full instruction.

Oct 13, 2008 | HP LaserJet 2820 Printer

2 Answers


Sounds like the scanner bulb mate. There is a post on here already about how to fix the scanner bulb problem.
Hope you fix it

Apr 05, 2008 | HP LaserJet 3330 All-In-One Printer

7 Answers

Scanner error 6

in my network i have hp M1005 printer always i'm getting this msg "scanner error 6 turn off
then turn on"
when i make turn off and turn on again same msg comming

how can i solve this problem...

Jan 16, 2008 | HP LaserJet 3050 All-In-One Printer

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