I used to have no problem buying after market (non-HP) print cartridges and printing with my PSC2355 all-in-one. Now the printer responds "Remove and check [colour/black] cartridge. This is particularly a problem with the colour 344 cartridge. The black 338 cartridge doesn't seem to be a problem. I have used various after market manufacturer's cartridges, but the problem is consistent.
I have tried carefully cleaning the cartridge and printer connectors, and the ink exit.
I have tried to reset the printer. [1. turn. on, 2. disconnect power cord while on, 3. disconnect mains plug, 4. wait 15-20 seconds, 5. reconnect mains plus, 6. reconnect power cord]. The printer comes on, shows the thinking bar, then returns to it's previous state and asks for the cartridge to be checked.
I think the problem may be related to HP issuing driver/software updates that 'mandated' only original equipment (HP) manufacturer cartridges. Is there a way I can remove the updated software and return to the previous setup? This is an old printer now, but it scans and prints well (in B&W), and I don't want to replace it unnecessarily.
All ideas appreciated!