The Canon Service Mode Tool Version 1.050 is a legacy utility primarily used to reset waste ink counters (absorber full errors) on older Canon printer models. While functional for its time, it carries significant risks and is generally considered obsolete compared to newer versions or alternative methods. Core Functionality

Modern inkjet printers use internal pads to collect waste ink during cleaning cycles. When these pads are estimated to be full, the printer locks itself to prevent physical ink overflow. The Service Tool v1.050 allows a user to: Reset Waste Ink Counters

• WIC Reset Utility — Paid, but trusted for Canon waste ink counters.
• Service manual + button combo — Many newer printers let you enter service mode via button presses (e.g., hold Stop+Power). Then you can reset counters through a hidden menu.
• Use a repair shop — Often cheaper than a new printer, and they have the real SST.

The primary role of Service Tool v1.050 is to interface with a printer while it is in a dedicated "Service Mode".

While holding Power, release Stop and press it 5 times (some models require 6 times).