Release both buttons. The power light should blink and then stay lit. Your computer may notify you that "New Hardware" has been found. Using the ST5510 Resetter
Printers have internal sponges that collect excess ink during head cleanings. Once the printer’s software calculates that these pads are "full," it locks the printer to prevent ink from leaking. The ST5510 allows you to reset that internal counter back to 0% so you can continue printing. Key Features: Free Download Canon Resetter Service Tool St 5510
Once your printer is in Service Mode and connected via USB (Wi-Fi resets are not supported), follow these steps: Open ST5510.exe . Release both buttons
When searching for a "Free Download Canon Resetter Service Tool ST5510," proceed with extreme caution. Because this is official technician software, it is not publicly distributed by Canon. Using the ST5510 Resetter Printers have internal sponges