If you have duplex (printing on both sides) enabled on Kyocera copier, even when you print a single page, it will be turned around before printing, which doubles the printing time.

To avoid this, you need to enable print driver option called Smart Duplex:

• Open Devices and Printers
• Right click on your Kyocera Printer
• open Printer Properties
• click on Device Settings tab
• click on PDL
• select PCL XL (or KPDL)
• Click Settings
• Select Enable Smart Duplex Printing
• Save changes

Similar procedure may work for other printers as well, but I tested this with Kyocera TaskAlfa 250ci.