A USB Cable is mandatory. The tool cannot operate via wireless connection.

Exe files from unknown popup sites, "driver downloaders," or paid services charging more than $10. The tool should be free.

Every time your MB2140 cleans its printheads, it pumps excess ink into a physical absorbent pad inside the machine. The printer estimates this ink volume using a digital counter.

| Step | Action | | :--- | :--- | | 1 | Turn the printer OFF (unplug from mains for 10 seconds). | | 2 | Press and hold the button. | | 3 | While holding RESET, press and hold the POWER button. | | 4 | Wait for the power light to come on, then release RESET but keep POWER held. | | 5 | Tap the RESET button 5 times (press and release each time). | | 6 | Wait 2–3 seconds, then release the POWER button. | | 7 | The screen may remain blank, but the power light should flash slowly — service mode active. |

Canon MAXIFY MB2140 Service Tool is specialized software used primarily to address critical maintenance errors like Support Code 5B00 , which indicates that the waste ink absorber is full. JustAnswer Key Functions of the Service Tool Ink Absorber Reset

While holding Stop, press and hold down the button. Do not release either.