I can't seem to get the printer cartridge holder to stop in the right place to be able to remove/replace the cartridges. I've tried turning the printer off and on, unplugging it, rebooting my machine - and every time the cartridge holder stops about 3/4 of an inch to the right of where it should, so that the black cartidge cannot be accessed at all and the handle/lock for the color cartridge cannot be lowered. Help??
