While the tool is available for download on sites like 2Manuals.com or through community resources on Scribd , users should exercise caution.
Release both buttons. The power light should stay green, indicating it is in Service Mode. Canon Service Tool V3400 -v 3.4 0.0 Download- Extra Quality
Many "free" downloads found online may contain viruses; always scan files with Microsoft Defender before execution. While the tool is available for download on
Press and hold the button, then press and hold the Power button. Canon Service Tool V3400 -v 3.4 0.0 Download- Extra Quality
Resets the internal counter that tracks waste ink levels, allowing the printer to continue operating after the physical absorber has been cleaned or replaced.
Using V3400 on incompatible newer models (like the MG3500 series) can permanently lock the printer's service mode.