If you are experiencing the 'Canon printer offline' problem, follow the steps outlined below to resolve the issue. Inspect to determine whether your Canon printer's lights are flashing in a certain pattern. Make sure the power line is attached to the wall outlet correctly. Restart your computer if it is having problems locating your printer and attempt printing something fresh. Please go to Canon's official website and obtain the most updated software driver. The print queue has stopped responding due to a software fault.