Assuming you have cleared the F91 error or the printer works mechanically.
Why go through the trouble of finding and installing a legacy driver for an old machine? The answer lies in sustainability and cost-effectiveness. The Canon F91 5800 series was built to last. Toner cartridges are widely available and relatively inexpensive compared to newer models. By locating and maintaining the correct driver, a business extends the life of a functional asset, keeping electronic waste out of landfills and saving budget funds for other priorities. canon f91 5800 driver
Installing a fresh driver will not fix error F91. The driver only allows communication between PC and printer. However, once you clear the F91 error (through service mode or repair), you will need the driver again. Assuming you have cleared the F91 error or