How many sheets can I load in the rear paper feeder for standard plain paper?

For plain paper or copy paper in Letter, Executive, Half Letter, A6, or A4 sizes, you can load up to 100 sheets in the rear paper feeder. For Legal, Mexico-Oficio, and other larger user-defined sizes, you can only load 1 sheet at a time. Always load paper short edge first and do not load paper above the arrow mark inside the edge guides. (Page 50)