If your Canon printer faces any problem while printing, you need to troubleshoot the issue to solve it. A printer may face issues due to connectivity, low ink level, lack of paper, and hardware or software issues. Try out all the techniques listed in this article and fix your issue without much effort.



Resetting your Canon printer to its factory default settings will help reset all the settings of your printer. Follow the instructions below to reset your Canon printer.

  • On your printer, press the Setup button.
  • From the printer control panel, select the Device Settings option and press OK.
  • Now, choose Reset Settings and select the OK button.
  • The reset settings menu will appear on the printer’s screen.
  • Now, search for the Reset all option from the list of menus.
  • Select the Reset all option and then choose OK.
  • Now, your printer will be reset to the factory default settings.


“Canon printer not printing” is a common issue that may happen for different reasons such as unwanted print jobs, paper jam, empty ink cartridges, or printhead problems. Follow the below instructions to solve the “Canon printer not printing” issue.


Clear the paper jam:

To clear the jammed paper from the printer, follow the instructions.

  • Make sure to press the Stop button and turn off your printer before removing the jammed paper from the printer.
  • Now, open the front door of your printer.
  • Check whether any jammed paper is there below the printhead holder.
  • If you find any jammed paper, then move the printhead holder to the corner and slowly pull out the jammed paper from the Canon Mb2720 printer.
  • Make sure to remove all the jammed paper inside the printer.
  • Now, close the front door and select the OK option on the printer screen to continue printing.

Reinstall the printer driver:

If you want to reinstall the Canon printer driver on your computer, you need to uninstall the existing printer driver and install it again on the computer. Follow the below instructions to reinstall the printer driver on your computer.

  • Select the Start button on the computer’s main screen.
  • Now, search for the Control Panel option in the search bar.
  • Choose the Control Panel option from the search items and select the Programs option.
  • Select the Programs & Features option in the next window.
  • Right-click on your printer driver and choose Uninstall.
  • After uninstalling the printer driver from the computer, you need to reinstall the printer driver for your Canon Mb2720 printer.
  • Now, use the printer’s driver installation CD that came with your printer package and install the printer driver on your computer.
  • If you don’t have the installation CD, visit the official support page of your Canon printer and download the relevant printer driver on your computer.
  • After completing the download, open the driver file and follow the on-screen prompts to complete the driver installation on your computer.

Delete unwanted print jobs:

If you want to delete the unwanted print jobs from your printer, then follow the instructions.

  • Select the Start menu on your computer and open the Canon printer software.
  • Click on the Display Print Queue button from the Canon printer dialog box.
  • Now, choose the Printer tab and select your printer.
  • Click on the Cancel All Documents option from the menu list.
  • Now, a confirmation dialog box will display on the screen.
  • Click on the Yes button to delete all the print jobs on your printer.
  • Now, all the unwanted printing jobs will be removed from your printer’s memory.


The support code B504 will display on your Canon Mb2720 printer screen when there is no ink in the printer. Follow the below instructions to fix this error.

  • If there is a low or empty ink cartridge on your printer, then the ink replacement message will appear on the printer’s screen.
  • In that case, openyour printer’s front door andremove the empty/defective ink cartridge from the respective slot.
  • Unpack the new ink cartridge and discard its protective tapes.
  • Now, insert the new ink cartridge into the respective place on the printer.
  • Check whether the ink cartridge is correctly fitted into the slot.
  • Close the front door of the printer.