Printer not working MG7550 Code203
Canon printer Pixma MG7550 not working showing code B203
Take a look at this forum to see if any of these help. Printer stopped working Error B203
After a bit of searching seems like a malfunction of the printers printing head.
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Do a hard reset on your printer. To do this you just need to turn off your printer, unplug for a few minutes and then plug the printer again. If that still doesn't work, try turning the printer and your computer off, and then start it back up again. Try uninstalling and then reinstalling your printer driver.
Regards,
Will
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