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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).
To resolve this without hardware replacement, a "Service Tool" is required to reset the counter to zero.
The most critical risk involves the EEPROM data corruption. Using a PIXMA-oriented tool on a MAXIFY printer can overwrite critical header data (such as the USB serial number). If the serial number is corrupted, the printer may lose the ability to communicate with the computer entirely, rendering it irreparable without advanced JTAG hardware repair.
Given the incompatibility of generic Service Tools with the MAXIFY series, the following alternatives are the recommended industry standards:
This is a gray area. Canon does not officially distribute the service tool to end users. It is intended for authorized service centers. However, the tool has been leaked online by technicians and enthusiasts.
Safety considerations for 2021 users:
Legal note: Resetting the counter does not physically replace the waste ink pads. If the pads are truly saturated, ink may leak inside the printer, causing damage or electrical shorts. Use this tool at your own risk.
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