Lexmark Sheet Feeder for C920. Maximum capacity: 550 sheets. Dimensions (WxDxH): 695 x 559 x 129 mm. Standard media sizes: A3 (297 x 420 mm) A4 (210 x 297 mm) JIS-B4 (257 x 364 mm) Ledger (11 x 17" - 279 x 432 mm)