This will also work on the MX, MX models. Issue Number: Replace the ink cartridge U An error has occurred while scanning the file, or the format is not supported. When your Canon printer gets to a point when it believes the cartridge is empty you will be presented with a 'Check Ink' U or U message. Improper installation of the print tank or damage in the printhead are the possible reasons behind this error code.Ĭanon Pixma MP, MP Hold down the stop button for 5 seconds. If the printer is plugged directly into an outlet and none of the above is working, try the following fix: turn the printer off, press the stop button and hold it down for 2 seconds, press the ON button, hold it and release the stop button, press the stop button five times then release together with the on button.
The 'Check Ink' U or U error message appears when a Canon inkjet printer is not able to read one or more of the installed cartridges.
