HP LaserJet 4250DTN
I have a problem after replacing formatter board, operation panel say’s to (install genuine hp cartridge Q5942A). I have a genuine(Q5942X) installed. Any help would be appreciated. Thank you.

Experienced technical support provide their insights in answering this question :
It seems like it might be a 4240 board. The 4240 was pretty much the same printer, but sold for $200 less. The downside is that it wouldn’t accept the 42X cartridges.

How to Identify and Fix Common printer Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced technical support :

The flag located right of the pick-up roller has a fixed position. If the flag becomes stuck or broken, it will produce a 60.02 tray lift error or a “LOAD PAPER” message. If this flag is broken or if the sensor has failed, the RM2-6368 paper feed guide will need to be replaced.
If your printer is turned on, disconnect the power cord from the printer. Keep the power plug unplugged for 60 seconds, reconnect the power cord to the wall, and turn on the printer. If the error persists, remove the cartridge from the printer, clean the cartridge contacts with a cloth, and reinstall the cartridges.
Error code 59.40 for HP Laserjet 4350 means that your printer has a print cartridge motor error.
A 60. xx error is a tray lift or feed error. Check the paper size guides in the cassette tray to make sure they`re set correctly for the paper size and not too tight or far from the paper as either can cause the error.
generally the error refers to a lifter motor issue with the tray 3 lifter motor.
Most commonly “Cartridge Problem” means that your HP printer simply cannot recognise the colour or black ink cartridges. Thankfully however this error message can usually be cleared with some basic troubleshooting.
If you see this error code 50.5 on an HP LaserJet 4200, 4240, 4250, 4300, or 4350 series printer, the fuser installed in the printer is registering as an incorrect fuser for that model printer.
59.70 is a black developer motor failure. If unit is still under warranty contact tech support and get it repaired. If unit is out of warranty you will need a developer motor RM2–7344–000CN.
The printer might display an error if the ink cartridges are not correctly installed. Remove the ink cartridges, check them for any plastic tape, reinstall the ink cartridges, and then try to print again.
Make sure the back stop of the tray is in the correct position. If the paper is to far foward and tight it could prevent the tray bottom from lifting. Also you could remove all the paper and see if you still get the issue.

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erro message (install genuine hp cartridge)
ANSWER : It seems like it might be a 4240 board. The 4240 was pretty much the same printer, but sold for $200 less. The downside is that it wouldn’t accept the 42X cartridges.

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ANSWER : You can try cleaning the contacts on the back of the cartridge and the ones that they contact in the printer. Other than that, you have to replace the cartridge. I once had one that did the same thing. I swapped the cartridge with another printer of the same model and both printers worked fine. I swapped them back and the original printer got the same error. The other printer had no problem with either cartridge. I swapped them back and left them that way.

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ANSWER : Pretty much nothing else you can do except try another new cartridge. I had 2 identical HP printers once in the shop. One of them didn’t like one of the cartridges. I swapped it over with the other printers cartridge and it was happy. So was the other printer. Swapped the cartridges back and it didn’t like it again. How do you explain that? You don’t.

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