Canon Service Tool 4905 ((install)) -

: Includes test print patterns and nozzle cleaning routines beyond what is available in standard consumer software.

button. If the green light stays solid, you are in Service Mode. Step 2: Reset the Counter Connect your printer to a PC via (Wi-Fi will not work for this). ServiceTool_V4905.exe In the "Main" tab, look for the Ink Absorber Counter Ensure "Counter Value" is set to 0% and click canon service tool 4905