Canon printer MD 600 - Only black and cyan printing even on printer Test Page. All ink cartridges showing full and have tried deap clean and alignment etc. but to no avail. Expensive Printer only 18 months or so old and I am a retiree so would like to solve problem but find a new set of cartridges expensive if it doesn't solve problem. Any suggest welcomed to solve problem. Should I cut losses scrap printer and purchase new cheaper printer. Thanks, Roger

SOURCE: printer problem

Hi , did you check nozzle what color appear , some ink cartidge are old stock and dry , pullout cartridge clean the contact nozzle .

SOURCE: canon pixma mp780

Try uninstalling/reinstalling the drivers.

Is the error light flashing?

From the printer utility can you print a nozzle check sheet or align the printhead?

Does it seem to be printing (feeding sheet and moving printhead) or nothing happening at all?

Try removing all the tanks, take out the head. If blocked try cleaning manualy by running warm water over the ink ports/printhead jets - dry off and reinstall.

SOURCE: canon ip5000 won't print black

try taking the cartridge out and cleaning it then replace it after that unplug it for a couple minutes and then plug it back in and let me know what happens

SOURCE: Canon Pixma ip3000 printer, changed black ink

i had the same problem and just repeated the cleaning and testing, eventually the black showed up but took more than a few repetitions

SOURCE: Most of Group 1inks,(except red) won't print

Over on the right is not waste ink pads, waste ink is under the print engine covering the whole bottom of the printer. On the right is the purge assembly and there is ink on the filters on top and on the squeegee that wipes the printhead. You may need a new purge assembly, or just re attach a hose in the purge unit that may have come off. That printer is well worth the repair...

Testimonial: "FINALLY,some1!Bit short on techsteps,4 nubees,Solves some issues to try own/prof repairs,or abandon? Worth trying to fixi9900 opinion is helpful."