While holding Power, release Stop/Reset, then press it (some models may require 2 or 6 presses).
: Provides options for test printing and nozzle checks to verify print head health. Canon Printer Service Tool V3600
This tool allows you to interact directly with the printer's firmware to perform tasks that are typically inaccessible through the standard printer driver: While holding Power, release Stop/Reset, then press it
The counter was reset. The "death" clock had been wound back to zero. While holding Power
Replace the pads (a messy, labor-intensive process) and reset the counter via their proprietary software. This costs $100-$200, often more than the printer is worth.