Kyocera FS-1028DP Operation Manual page 72

Preparation before Use
2-32
1
Pull the MP tray towards you until it stops.
2
Pull out the subtray.
3
Adjust the position of the paper guides on the MP
tray. Standard paper sizes are marked on the MP
tray or Manual Feed tray. For standard paper sizes,
slide the paper guides to the corresponding mark.
OPERATION GUIDE