HP Deskjet 3520 PrinterCopierScanner (Catterall PR3)

PREVIOUSLY POSTED ON GARSTANG/WYRE FREEGLE
This has been a wonderful all round machine, but recently has been giving error messages about the cartridges not being correctly installed. I tried new cartridges, but the fault persisted. I'm giving this away as spare or repair, along with cables and a new set of cartridges.