HP LaserJet 4100TN

A 52 error on a 4100 indicates the laser scanner speed is incorrect.
Reseat the cables to the laser scanner, and if that doesn't cure it, replace the laser scanner assembly.
If you do replace the laser scanner assembly, it is a good idea to also replace the cables to it.

HtH
[email protected]

A well known fault. HP deny it of course, but.........

Paul is spot on with his answer

Trev

Remove the top cover and the scanner is the black box with a metal cover in the center. Look at all the cables going to it and pull one at a time out and put it back in. I have never had this error solved by reseating the cables and I have had about 30 of them. Always had to replace the laser/scanner.

Refer to this link. It shows the laser/scanner assembly. Your confusion is based on the name. In fact lexmark calls them a printhead. Just termenology. A scanner is a device which converts a document into digital data which can then be used in what ever way is needed. A laser/scanner in a printer takes a image constructed by a formatter and writes it to a drum and depending on the printer leads to the eventual laying of toner of the image on media.

http://partsurfer.hp.com

Can someone please tell me how to reseat the cables to the laser scanner?

Having problems finding anything out about this printer. It is a LaserJet 4100TN. It does not have a scanner built in. HP tells me that a laser scanner assembly only comes in printers that have a scanner. They also tell us that the 52.0 error should go away if you turn the printer off then turn it back on. This has not fixed the problem. Anyone gotta clue on this?

Thanks,
Jake

http://www.fixyourownprinter.com/reference/manuals

Jake go here scroll down to removing internal assemblies. Click on scanner/laser and follow the instructions. This should help. On this site they have put alot of service manuals for our help. Good luck

Jake, Sorry when you click on this link you have to scroll down first to hp laserjet 4100 then follow to removing internal assemblies.

Gene

HP told you that? All laser printers have laser scanner assemblies. That's how they form an image. I sure hope you didn't have to pay them their $30 fee to get that useless piece of information. I know I would be awfully upset and write a nasty letter to Carly personally, demanding a refund.

I showed my boss the Part Surfer page, and showed him the Laser/Scanner assembly. The only problem we have is this. How can the laser scanner stop the paper from rolling on up through the top of the printer? It's like the paper stops as soon as get comes in below the toner. How does that have anything to do with the laser scanner, which is located up on top of the printer?

Not trying to be a wiseguy, and not questioning anyone's knowledge.....just wanna make sure that we're spending the $265 on the right part.

Like I said, it's a 52.0 error. Thanks again for all of your help, you all have been a major assistance!!!

Thanks,
Jake

It stops the paper because the unit senses that no image is being transferred to the Toner cartridge from the Laser and therefore on to the paper.

Tell your boss, it's like a car running out of petrol (gas), no gas, car stops. No image from laser, paper stops.

Believe me, we do 6 to 7 4100's every day. The scanner Assy is defective and has to be changed.

PS The new scanner is supplied (in UK) without the metal shutter (and it's spring) at the front of the assy, you have to swap the shutter yourself (very easy).

Trev

Just because the advice you get here is free, doesn't mean it's not any good. In fact, it's a lot better than the advice HP dispenses for $30. Here you get real techs advising you, over the phone you get someone who doesn't even know how to open a printer. They read from a script. Trev is right in his diagnosis. The paper stops at registration which is under the toner cartridge. There it looks for the rotational speed signal from the laser scanner motor. If it doesn't see it, the printer shuts down with the 52 error. HP isn't the only one supplying the scanner assy. $265 is a bit much. If you want one, I can probably save you some money over the cost from HP and cheaper shipping as well. So talk to your boss and tell him you got the best advice on the web and 100\% the part will fix it. Would we lie?

Wow, it really chewed up your link there, dmz. Umm.. Try again, same way, I think I have it fixed (it was recursing on your anchor tag).

It sure did. Here it is again.

http://partsurfer.hp.com=


If it messes up again, try this link:

http://makeashorterlink.com/?Z3591255A

Hello,

I have an HP LaserJet 4100tn that has print fading on the left side. I have changed the fuser, transfer roller and tried a different toner cartridge. I ran the engine test and the print fades also. We use refurbished toner cartridges, so I will buy a genuine HP toner cartridge to see if it makes a difference. If not, could it be the scanner/laser assembly? Thanks.

Richard

The laser scanner will have faint images. It won't necessarily fade. Sounds to me like the cartridge. If you have an extra printer around try and swap the toner.

Do a half-stop test. Feed a page from the manual feed tray. When the end just disappears into the printer, open the lid and take out the toner cartridge. Flip it over and open the shutter. Is the image across the drum consistent. If it is, then it is a problem with the charge transfer roller. If not, could be dirty optics in the laser scanner assembly.