Paper won't pick up on Color Laser 150nw

[Kaperz]

I'm really struggling to solve my printer's problem (HP Color Laser 150nw). When I send something to print, the printer makes all the right noises, and the rollers start moving around, but it doesn't seem to pick up the paper. The rollers go through a couple of rotations, nothing comes out, it pauses then tries again. Same thing happens again, so the printer tries a third time. Then it gives up, and the attention light comes up and my print dialogue says there's a paper jam. There is never a jam. I have tried replacing the waste toner unit, as well as taking out all the cartridges/toners/imaging drum and cleaning the inside thoroughly. I have also cleaned the pick-up rollers. I have done all this twice. I have turned off and on again a million times and every time I try to print, the same thing happens. This was not a cheap home printer, and having purchased a new waste toner unit, as well as a couple of spare toner cartridges, I want to be able to fix this printer. I have only had this printer for two years and have only ever used genuine HP parts and cartridges for it. HP doesn't seem to offer service agents who can repair it in the UK. I have also tried the online diagnostic tool, but every time the HP Smart app finds my printer, I have to then register my product (done this 3 times), and then when I register my printer disappears from the app and I have to repeat the whole thing again. I'm at my wits end after spending a lot of time and some money on this. Please help.

[Repairatrooper]

If they are turning but not grabbing the paper either the roller is worn or the tray is not lifting properly to ensure the paper is in position. I have also seen this behavior when the paper backstop is in the wrong position and the paper slips back slightly and does sit right under the pickup roller. The pickup roller part number according to HP PartSurfer is JC73-00309A

[Kaperz]

Thank you for taking the time to reply to my problem. I can see from HP part surfer that the part number you quoted was correct, but when I searched to buy that part it kept saying it was for a Samsung printer. I'm a little reluctant to buy this part though, as I cannot see how to remove the pick-up roller. I've searched so many clips and there are none for my model of printer. All other videos I have found show release tabs, or unlocking tabs, but my model doesn't seem to have these tabs to release the pick-up roller so I can't even get it out. I attempted to clean it again using a thin specimen swab to get to the area of the roller I cannot access, but again this has not worked. Do you have any guidance on how to remove this roller, so I can attempt to clean it properly, before spending more money on a new part?

Many thanks