You may have refilled your Canon PG-40 or CL-41 ink cartridges, expecting to continue printing to your hea… | Ink cartridge trick, Printer ink cartridges, Ink reset
Replace imaging drum? How about nahhhhhhhh. Swap chip with chip from used toner and away you go. : r/lifehacks
How to Get a Lot More Use Out of Printer Ink Cartridges « Computer Hardware :: WonderHowTo