Some Canon printers allow resetting via a backdoor button combination without software:
Using an incompatible or corrupted version of the tool can "brick" your printer's logic board, making it permanently unusable. Step 1: Entering Service Mode canon service tool v6000 free download without password work
This article is for informational purposes only. The authors and publishers disclaim any responsibility for damages or losses resulting from the use of unauthorized software or methods. Users are advised to respect Canon's intellectual property rights and follow authorized procedures for accessing and utilizing Canon Service Tool V6000. Some Canon printers allow resetting via a backdoor