How do you fix error 5b04 in canon printer?

Error 5B04 on a Canon printer typically indicates that the ink absorber is full and needs to be reset or replaced. To fix this, you can try resetting the printer by turning it off, unplugging it, and then holding the "Stop" button while plugging it back in. If the error persists, you may need to clean or replace the ink absorber pads, which usually requires disassembling the printer or seeking professional service. Always consult your printer's manual for specific instructions related to your model.