If the tool displays an error code, it usually points to a connection or compatibility issue:

If your printer is a newer model (e.g., PIXMA TS series, TR series, G series MegaTank, or Pro-1000), . You would need service tool v4.0 or higher, or Canon’s cloud-based SST.

Note: Newer models like the G-series typically require later versions like V5105 or V6310. General Usage Steps To use the tool, the printer must first be placed into Service Mode

Press the Stop/Reset button exactly 5 times (on most models; some require 2 or 6).

Jamal connected his laptop to the printer’s service USB port (hidden behind a small cover). He launched version 1050. The interface looked like an old Windows 95 program — gray boxes, no mouse support, only keyboard arrows.