topic Re: Canon Pixma MG 7120 will not print anything in black. Not the nozzle test. I have cleaned and in Desktop Inkjet Printers

Canon Pixma MG 7120 will not print anything in black. Not the nozzle test. I have cleaned and re-c

catzyaleman — Wed, 18 Jan 2017 06:00:29 GMT

Canon Pixma MG 7120 will not print anything in black. Won't print the black lines for nozzle test. I have made sure all ink cartridges are full, no tape remnants. I have cleaned and deep-cleaned to no avail. It was copying fine and then stopped printing in black between pages. Any ideas?

Re: Canon Pixma MG 7120 will not print anything in black. Not the nozzle test. I have cleaned and

Ramona — Wed, 18 Jan 2017 13:41:01 GMT

Hi catzyaleman,

Please try removing and reseating all of the ink tanks and print head in the unit by following the steps shown here to see if this will help. If the issue continues, we ask that you please contact a Canon technical support representative at one of the methods provided here for further assistance. A representative will be happy to assist you free of charge.

Re: Canon Pixma MG 7120 will not print anything in black. Not the nozzle test. I have cleaned and

gugario — Sun, 21 Oct 2018 17:15:12 GMT

The same happened to me. I was able to fix the problem by cleaning the printhead by:

1. removing all inks
2. removing the printhead (there are several videos on Youtube on how to do it)
3. putting the printhead on a bath of 50/50 water and rubbing alcohol for a few minutes to loosen up any dried paint

4. letting it dry off and reinstalling

Magically, PGBK is now printing again 🙂