Resetting the password of a Canon printer can be done in a few steps. Here are some general steps you can follow:

1. Open the printer’s status on your web browser. Make sure the printer is turned on during this process.
2. Select the Security tab from the menu.
3. Click on Administrator Password Setting > Change Administrator Password.
4. You will then be prompted to change or set the password.
5. For some Canon models like the PIXMA TS5300 series, you can initialize the printer settings by selecting Device settings > Reset settings > Reset all in the setup menu and then select Yes, restore to default administrator password.