I can duplex from the computer. I can scan both sides of a paper using the document feeder and copying or scanning. However, when I want to send a fax and the paper has been printed on both sides, I can't find a setting in the fax send settings to tell it to read both sides of the paper. I wound of having to scan to a PDF on the PC then print to the fax. There is a setting to print received faxes in duplex, but how do you tell the printer to fax a sheet that's been printed on both sides?
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