Feed Manually from Multipurpose Tray
Select this if you want the printer to wait until you press the ONLINE button when feeding from the Multipurpose Tray.
This can be useful if printing on envelopes.
Always Create 100% Black (K) Toner
Select this if you want the printer to always use only black (K) toner when printing pure black (RGB = 0,0,0).
This is effective even when Composite Black (CMYK) is selected in the color options.
Run Maintenance Cycle Before Printing
Depending on printing habits and usage patterns, running the maintenance cycle before printing may ensure the best possible print quality.
This feature uses the printer's image drums and transfer belt; the life of these printer parts may be shortened if the maintenance cycle is run frequently.
Adjust Character Spacing
Select this if you are having problems with the spacing between characters when printing text. For example, spacing is too wide or characters appear printed over the top of each other.
This feature can slow down printing, so only use it if you are having problems.
Printer settings in Mac> 38