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Home Support Printers All-In-Ones WorkForce Series Epson WorkForce Pro WF-4640

2-Sided Printing (Windows) or Two-Sided Printing Settings (Mac) is gray or not available for selection. What should I do?

    Automatic double-sided printing is only available if you have loaded plain paper or other supported paper in these sizes: Letter (8.5 x 11 inches [216 x 279 mm]), Legal (8 1/2 x 14 in.), and A4 (8.3 x 11.7 inches [210 x 297 mm]).
Published:  May 14, 2014 Was this helpful​? Thank you for the feedback!
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