She clicked.

Would you like step-by-step instructions for entering service mode on your specific firmware version?

Using this tool voids your warranty if the printer is still under coverage. However, most G3400 units are out of warranty by now.

| Aspect | Rating | |--------|--------| | Ease of reset (waste ink) | ⭐⭐☆☆☆ (needs tool + service mode) | | Ink level reset | ⭐⭐⭐⭐☆ (button method works often) | | Network reset | ⭐⭐⭐⭐⭐ (simple button hold) | | Risk level | Medium (physical overflow risk) | | Official Canon support | None — Canon will charge for pad replacement |

There are several reasons why you may need to reset your Canon G3400: