Paper Sources to Load PaperPage Sizes and Media Types compatible with the machinePaper can be loaded into two sources, the upper cassette 1 (A) and lower cassette 2 (B).In the upper cassette 1 (A), all sizes of paper compatible with this machine (plain paper, photo paper,envelopes, etc.) can be loaded.In the lower cassette 2 (B), A4, Letter, and Legal-sized plain paper can be loaded.Media Types You Can UseYou can load the same size of plain paper (A4, Letter, and Legal) in both cassettes, then set the machineto automatically switch the paper source and feed paper from the other cassette if paper in one cassetteruns out.Cassette settingsNote• When printing, be sure to select the correct page size and media type. If the wrong page size andmedia type are selected, the machine may feed paper from the wrong paper source or may not printwith the proper print quality.For details on loading paper in a cassette, see below.Loading Plain Paper / Photo PaperLoading EnvelopesAdjusting the cassette according to the PaperThe cassette can be adjusted to three lengths. Press down the lock (C) on the cassette to extend thecassette.158