Reset the printer. Unplug it and leave it disconnected for at least 30 minutes. A good, long reset allows the printer to cool down and restore everything to its proper position before turning the device back on. Remove any obstructions. There's a possibility something is disrupting the connection to the printer head. Open the printer's door and carefully disconnect the print head, then lift it out of the device. Reseat it and see if that resolves the issue. Clean the printer head. Use the device's maintenance options to run its cleaning cycle. This is especially useful if the printer head is clogged. Manually clean the print head. That will also help you to resolve the Canon Printer Error Codes B200.