Hp laserjet 4250dtn PROBLEM

Change the cartridge

There is output sensor where the papers come out, make sure its lowered down, be VERY CAREFUL not to break it.

replace the duplexer, or clean the duplexer rolls using alchole

The fuser and swing gear asm (the swing gears drive the fuser) probably needs to be replaced. I rarely see the fuser drive motor cause this kind of problem. Are you hearing any noise coming from the back?

I think what is happening is when you get the error, the printer automaticaly reprints the page it was on when it got an error condition that makes it think it didn't print the page correctly. The clearing paper path message comes up after it thinks it had a jam. Displaying load plain paper could be because either the printer is not configed for the correct type of paper you have in the tray you are trying to prin form(push the green check button, arrow downt to paper handling and see what your trays are set for.) Also there is a blue switch on the tay(looking for front of tray it will be on the right hand side of tray rail) the switch says standard or custom. The switch should be in the standard position.
Are you getting any errors or jams, if so, tell me what they are.

Hello,
This happens when the printer is printing duplex job. i.e. trying to print the other side of the page.
However check the functionality of the printer by performing Paper path test.
This would help us to know whether the printer as a stand alone ... is fine or not.

From the control panel of the printer, scroll to Diagnostic > paper path test.
Select the following in sequence.
Source: All trays
Copies: 10
Duplex: ON
Print Test Page

Check if you get the same error.
If yes, upgrade teh firmware of the printer.

Let me know the end result. We still have more depending on the above test.

- Nikhil

Change the toner cartridge, refilling will not solve the problem.

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Is it a new or refurbished fuser? Where exactly does it jam. By trays, registration or before fuser? Problem can be with various sections. Need to know more.