To use the tool, your printer must be in . Follow these steps carefully: 1. Enter Service Mode Turn off the printer but keep it plugged in.

Canon Service Tool V3400 is a specialized software utility used to reset the Waste Ink Absorber Counter

If standard downloads fail, some users create a “universal chip” by combining dumps from multiple versions. This requires hex editing skills and is not recommended for beginners.

The tool can't "see" the printer. Ensure you are in Service Mode with a solid green light before opening the software. A Note of Caution

Now we arrive at the core of the keyword: actually getting the downloaded data onto the chip.