How is it possible for the pgbk to stop working in two different Canon printers almost simultaneously?Pixma MG7120 & Maxify MB2720. I've tried all the "fixes" to no avail.
I was trying to tread lightly. I'm sitting here looking at a Pixma MG7120 (pgbk will not print) AND a Maxify MB2720 (black prints in streaks). I've given up on the Pixma--flushing the print head did not help (probably time to replace due to age)C...
I may be able to help. I don't mean to insult your intelligence, but have you turned your machine off and on? ...and have you done any of the maintenance items such as nozzle check or head alignment?