The green light should blink for a few seconds and then stay permanently lit. Your computer may play a sound indicating a new USB device has been found. Your printer is now in Service Mode. Step-by-Step Guide to Resetting Waste Ink Counters
Here's how to use the tool once your printer is in service mode: canon service tool 4905
Press the (or 6 times for certain G-series models) in rhythmic succession. Each press will toggle the LED light between orange and green. Release the Power button . The green light should blink for a few
: Supports deep head cleaning, nozzle alignment, and region setting changes. Supported Printer Models and their variants.
Includes models like G1000, G2000, G3000, and their variants.