Canon imageCLASS D420 Printer Driver Download. I have had one paper jam earlier and that used to be once handy abundant to relief by the use of following the instructional components listed on the printer show. One component I placed is that nowhere inside the instructions does it’s going to assist you to understand how you can close the scanning platform while you open it and lock it into predicament after replacing the toner cartridge or clearing a paper jam. If you’re going by means of the printer, on the left phase you will find a plastic arm that locks into role at the same time you open the scanning platform. The difficulty I had was once as soon as settling on free up the plastic arm in a whilst to allow the scanning platform to lessen once more into region. While you press your finger on the piece of vivid metallic straight in front of the arm, it’ll allow the arm to liberate.