Duplex Unit ____________________
This option provides automatic two-sided printing on the same
range of paper sizes as tray 2 (i.e. all cassette sizes except A6),
using paper stocks from:
• MPS610c: 17-32 lb. US Bond (64-120 g/m²)
• MPS711c: 17-59 lb. US Bond (64-220 g/m²)
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– MPS610c/MPS711c User's Guide