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Hacking Canon MegaTank and clearing 5B00 Lock: A Native Waste-Ink Reset over USB with Ghidra, Frida and friends
A complete technical reference for resetting the Canon G-series MegaTank '5B00 ink absorber full' lock from Linux. Recovering the usbprint vendor-control maintenance protocol, the per-session keyword-bound write cipher and correlating payloads against friendly-fire RE dumps from WICReset
Introduction Everything here is implemented in the opensource canonmegatankreset (zlib code; CCBY4.0 docs available in mkdocs here). Note, I am...