Sharp MX-M623 MX-M623 MX-M753 Operation Manual - Page 844

TROUBLESHOOTING Problem Two-sided copying does not take place. The paper size of a tray cannot be set. Point to check Does the paper type setting of the selected tray specify a type of paper that cannot be used for two-sided copying? Solution Check "Tray Settings" in the system settings. If the [Disable Duplex] checkbox is selected , two-sided copying using that tray will not be possible. Change the paper type setting to a type that can be used for two-sided printing. ➞ System Settings > "Paper Tray Settings" > "Tray Settings" > "Change" Are you using a special size or type of paper? For the paper types and sizes that can be used for two-sided copying, see "SPECIFICATIONS" in the Safety Guide. Are you copying using settings that do not allow two-sided copying? Two-sided copying can generally be combined with other special modes, however, some combinations are not possible. If a prohibited combination is selected, a message will appear in the touch panel. Have functions been disabled by the administrator? Check with your administrator. Some functions may have been disabled in the system settings (administrator). When user authentication is enabled, the functions that you can use may be restricted in your user settings. Have functions been disabled by the administrator? Check with your administrator. Some functions may have been disabled in the system settings (administrator). 8-25 Contents