This paper examines drivers and software support for the Canon F91-5800, a wristwatch model from Canon’s (note: Canon is primarily known for cameras and printers; the F91-5800 appears to be a digital wristwatch model—if you meant Casio F-91W or a Canon printer model, see Disambiguation). The paper summarizes the device, typical driver needs, available support, methods to interface with similar devices, and recommendations.
: During setup, do not connect the USB cable until the software prompts you. According to Canon India , you should install the driver first, then connect and turn on the device when instructed.
If you need further help, reply with the printed on your Canon device (e.g., "MF5800", "LBP6030w"), and I will provide the direct driver link.