Canon Service Tool v4906 is a professional diagnostic utility for Windows designed to maintain and calibrate specific Canon inkjet printers. It is most commonly used to resolve the 5B00 error
The is a proprietary software application used primarily by technicians to reset the internal maintenance counters of Canon printers, most notably the "Waste Ink Pad" or "Ink Absorber" counter (often indicated by error code 5B00 ). Core Functionality
(for Epson and some Canon) are occasionally used as safer, though sometimes paid, alternatives.
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