He knew what that meant. Every forum, every defunct tech blog, every ghost of a YouTube tutorial whispered the same truth: you need the Service Tool. Not the driver. Not the firmware. The tool —a piece of software that lived on the same dark, decrepit corners of the internet as bootleg Windows keys and early Bitcoin wallets.
Warning: Only use on printers you own or are authorized to service. Resetting counters without addressing saturated absorbers can cause leaks. canon mb2140 service tool 2021
The Canon MAXIFY MB2140 is a business-oriented inkjet printer. Like most modern inkjet printers, it contains an internal "absorber counter" that estimates the saturation of the waste ink pad. When this counter reaches a predefined limit, the printer halts operation and displays an error (typically "Support Code 5B00" or a warning regarding the waste ink absorber). Canon MB2140 Service Tool 2021: The Ultimate Guide