Question about HP LaserJet 4250n Printer
I have been getting a 51.20 error message on my printer. It tells me to turn it off and then back on again. I have done that and it still won't work. Also, I just replaced the fusor because that is what the error message is suppose to be. Is there something else I should be doing? Thanks.
It is an error with the laser scanner unit
1 Press ( SELECT button) to continue.
2 Turn the printer off and then on.
3 Reseat the connectors between the
laser/scanner and dc controller
PCA (J83 and J84).
4 Replace the laser/scanner assembly.
See Laser/scanner assembly.
5 Replace the dc controller PCA. See
Dc controller PCA.
If nothing from above works and the printer is no longer in warranty, it is possible if the printer is being used in a very dirty or dusty enviornment that the lens and optics of the laser/scanner are so full of debris that the beam detect error occurs. You can remove the top cover and the big black box in the center is the laser scanner assembly. Remove the screws securing the top cover of the laser scanner and remove and clean up all the optics to include the main mirror in the front. I usually use a damp q tip and for the mirror I slide up from toner cartrdige shutter area and observe from the top as it cleans the mirror. Removing the complete assembly on this model is not easy since there are a couple of cables going to the dc controller which are difficult to remove so removing the top of the assembly is easier.
Here is the service manual:
Click on this link or copy and paste the complete link into your browser.
If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Posted on May 26, 2009
Hi i m virendra yadav hp engineer hp 4250 printer 51.20 error , this error fuser, dc, Replace
Posted on May 05, 2014
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Posted on Jan 02, 2017
According to the manual: "A 13.01.00 error message indicates that the media did not arrive at the pre-feed sensor (PS102) within the specified time." That usually means that the rollers fail to pickup the paper from Tray 2. Usually, cleaning the paper feed roller in the 500 sheet tray should fix this. While blowing out dust, you may have coated this roller with paper dust. A quick way to double check this is to power cycle the printer & try to print from Tray 1, the MP feeder tray (unless Tray1 has rarely or never been used...it might be a little tempermental as well). Regardless, this error is very common & is usually fixed by cleaning. Depending on usage, this roller is considered a customer replacable item (Part # RM1-0037-000CN) with a life expectancy of more than 200,000 pages. There are 3 of that type roller in the printer, but the one in the tray is usually the 1st one to fail. Hope this helps!
Posted on Jun 02, 2008
Replace the fuser unit (they last about 75K pages in my experience)
1. Power down the printer and unplug it
2. Remove the fuser from the back side of the printer
3. Replace the fuser unit with a new one
4. Turn the printer back on
Posted on Dec 24, 2009
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