The machine only prints when the paper drawer is inserted, even if paper is loaded in the multi-purpose tray. An error message is displayed if you attempt to print without inserting the paper drawer.
When loading custom size paper (Touch panel model) If you frequently need to change the paper to be loaded, set to <Free Size>; this will reduce the number of steps required to change the setting each time. You can also display an error message when the setting in the printer driver is significantly different from the size of the loaded paper.
A toner cartridge may not be installed correctly or may be faulty. Re-install the toner cartridge. If re-installing the toner cartridge fails to clear the error message , the toner cartridge may be faulty. Contact the store where you purchased the toner cartridge or consult the Canon Customer Help Center.