If you are unable to solve a problem using the solutions in this manual, press the [Power] button and then turn the main power switch to the ""position. Wait at least 10 seconds and then turn the main power switch to the ""position. After the main power indicator color changes from orange to green, press the [POWER] button.
When the background color of the job status display at the upper right corner of the touch panel is not gray, do not switch off the main power switch or unplug the power plug. This may damage the hard drive or cause the data being stored or received to be lost.
Point to check Solution
Does the paper type setting of the selected tray specify a type of paper that cannot be used for 2-sided printing? Check "Paper Tray Settings" in the setting mode.
If the [Disable Duplex] checkbox is , two-sided printing using that tray will not be possible. Change the paper type setting to a type that can be used for 2-sided printing.
"Setting mode" → [Paper Tray Settings] → [Tray Registration]
Are you using a special size or type of paper? For the paper types and sizes that can be used for two-sided printing, see "SPECIFICATIONS" in Quick Start Guide.
Check with your administrator.
Have functions been disabled by the administrator?		 Some functions may have been disabled in the setting mode. Check with your administrator.
When user authentication is enabled, the functions that you can use may be restricted in your user settings. Check with your administrator.