Elias groaned. He checked the cable. He re-entered service mode. He tried again. Same error. He went back to the browser, scrolling down the forum page. Buried fifty comments deep, he found the solution.

This time, the USB port was recognized instantly. He hovered over the button again and clicked.

Check your USB cable connection or ensure the printer is turned on. Not in Service Mode

: Resets maintenance tank usage logs and aligns print heads.

Inside every Canon Pixma printer are physical foam pads called waste ink absorbers. Every time your printer cleans its printhead, primes the cartridges, or boots up, it flushes a small amount of ink into these pads.

A small pop-up dialog box will appear on your PC stating Click OK .