This video guide describes the process for modifying an Canon OEM/Original CLI-551 XL cartridge for refilling using the Top-Fill method demonstrated in various other videos.
Note: We are looking forward to providing other approaches that equally valid in the future.
Important: This approach is only expected to work for XL (High Capacity) Cartridges of this type due to the physical limitations built in to other cartridge types.
This approach is equally valid for cartridges models:
PGI-550, CLI-551, PGI-570, CLI-571, PGI-580, CLI-581, PGI-250, CLI-251, PGI-270, CLI-271 and all other sales zone references of the X50/X51, X70/X71 and X80,X81 types…