Canon Service Tool: 4905 !new!

Canon Service Tool 4905: A Comprehensive Review

Alternatives to v4905

1. Turn off the printer.
2. Disconnect the USB cable.
3. Ensure paper is loaded (some service routines require a paper feed).

• Operating System: Windows 7, Windows 8, Windows 10, or Windows 11 (64-bit versions are standard for modern tools).
• Connection: A stable USB 2.0 or 3.0 connection. The printer must be connected directly to the PC; USB hubs are discouraged.
• Printer State: The printer must be in "Service Mode" for the software to recognize it. Standard "Ready" mode will not allow the tool to communicate.

1. Connect the printer to your PC via USB (do not use Wi-Fi).
2. Run ST4905.exe as Administrator (right-click → “Run as administrator”).
3. The main interface will appear – a small grey window with dropdown menus.

Canon Service Tool 4905

While the is generally safe when used correctly, it is not an official Canon product. Using it has implications: