: This happens if the printer is not successfully booted into Service Mode, or if you opened the software before plugging in the USB cable. Close the tool, restart the printer into Service Mode, and try again. Error Code: 005
: Initiates deep cleaning cycles directly from your PC.
: Turn the printer off and back on to finalize the reset. Safety and Download Warnings
If your model is not listed, try an earlier tool (V.3400) or later tool (V.5204).
There are dozens of Canon service tool versions (V.3400, V.3600, V.4000, V.4720, etc.). So why target ?
Right-click on ServiceTool.exe and select .
He selected the USB port. The software blinked, handshake initiating.
The is a proprietary service utility used to perform maintenance on Canon inkjet printers, most commonly to reset the "waste ink absorber full" counter (Error 5B00). Availability and Legality
: Commonly used for G-series printers like the G1000, G2000, and .
Connection failed.
The interface popped up. It was ugly—tabs labeled "Main," "Ink Absorber," and "EEPROM." It looked like the dashboard of a nuclear power plant designed by a budget conscious accountant. It spoke in raw hexadecimal and obscure abbreviations. This wasn't software meant for consumers; this was the backdoor key used by authorized technicians to reset the machine's memory.
Turn off the printer using its physical Power button. (It may take a few seconds to shut down completely while it saves the new EEPROM state).