Cause of error code B200
See below
Solution for error code B200
This error code refers to a service error that can occur due to a hardware failure with either the printer or the print head. Official Canon advice states that you can: Turn off the printer, Disconnect the power cable, Open the printer cover, Check for any orange protective tape or white polystyrene and remove if necessary, Check that there are no foreign objects in the printer (such as a paper clip) and remove if necessary, Close the cover, Reconnect and turn on. If this hasn't resolved the issue, contact the Canon repair centre.