Sometimes when we need fast troubleshooting a printer, there is a shortcut way to check it which do not need connect to computer.
Now with the latest Canon Printer model, are without the LCD Panel, before I know this trick, I always had to connect to the computer to print the nozzle check or do the deep cleaning. Now with this trick, you can save the time on it.
The trick is very easy, every Canon Printer have a stop/reset button, press and hold it until the Alarm Light flash, then release .
Alarm Light Flash one time : Nozzle Check
Alarm Light Flash three time : Deep Cleaning
Alarm Light Flash five time: System Cleaning (For Canon G series Printer)
So far, i couldn’t find any documentation regarding this trick, if you do, please send a copy to me.