Canon Community

Is there any way to approach this problem with a hard factory reset, as with some other models?  The issue lies with the fact that there is no reset button on this printer at all - everything is controlled via the touchscreen, and once that displays ...

I have error code 903 after it has worked perfectly. I think I caused a problem while hurriedly changing an ink cartridge. The problem is there are no reset buttons on the touchscreen surround so the usual method of working power and reset together j...