Canon MAXIFY MB2140 Service Tool (often associated with 2021-era versions like
The (often version 5004, 5204, or 5404 for the MAXIFY series) contains the updated logic and memory maps necessary to communicate with the MB2140’s motherboard manufactured up to and including 2021. Using the wrong version is one of the most common ways to permanently damage your printer’s logic board. canon mb2140 service tool 2021
This is not a driver or a firmware update. It is a maintenance utility. The "2021" designation typically indicates a version of the tool (e.g., v4720, v3400) that was confirmed to work with the MB2140’s firmware up to the year 2021. Canon MAXIFY MB2140 Service Tool (often associated with
Elias exhaled a breath he didn’t know he was holding. He turned the printer off using the physical switch, waited ten seconds, and turned it back on. Final Release: Release both buttons
Release both buttons. The power light will flash and then remain steady green (the screen will remain blank), indicating you are in Service Mode. Clearing the Canon 'Check Ink' U140 or U150 Error Message