HP LaserJet Pro M281FDW vs HP LaserJet Pro M428fdw

But when it comes to printing a color picture, the M281 produces better looking and more realistic colors, while the M479 colors are more dull/faded and don't match the original picture. I made sure both printers are using the same color settings and have the newest Firmware and Drivers installed. But no matter what I try, the color pictures from the M479 don't look as good as from the M281. Lastly, for copying Black Text, both models are the same, with the advantage of 2-sided scanning on the M479

It prints nice though and fires out a first page quickly. But it should for 800 or whatever we paid for this black and white printer.

Tech support is ridiculous. Went through the troubleshooting, entered model, answered questions about it printing too light, then it points me to inkjet cartridges. I tried all other options I found on youtube and forums. Now I'm supposed to take the thing apart? After one set of cartridges and less than usual use?

The ink cartridge that came with the printer is malfuctioning; it won't seat properly and the printer door cannot close, so no printing can occur. Would like to reach out to seller but cannot identify (HP already directed me to do so, before they would help me). Any leads?