You must always setup canon driver whenever you want to use Canon Laser Shot LBP1120. Once you missing the driver CD, get the Canon Printer driver with below link and use these drivers to install your Canon Laser Shot LBP1120 printer. Use that CD to deploy Canon Laser Shot LBP1120 printer driver. There is always a DVD came along in the package whenever you purchase it. – You need to setup Canon Laser Shot LBP1120 printer driver before you could use Canon Laser Shot LBP1120 printer.