Have a question about my printer. I find it copies perfectly when I push the supply to far left but did not when maybe it drifted out of place. But now I notice when turn it on the Black Ink light is lit. Yet I printed two sheets in black and they looked good (maybe slightly less bold though). What does this light mean? Low?, Empty?, Replace?, Low? My manual is not handy so I wanted to see if someone knew. I do need to order some cartridges for have no spares on hand. Thanks for any help. I shall look for the manual now.