Patent ID: 7266320

Claim:
A dual mode printing method for duplex printing of a print job onto print media sheets in a duplex printer having a sheet input, a duplex sheet recirculation path and a printed sheets output path, wherein the print job is being sent to the printer electronically from a remote user terminal, and wherein said print job contains print media sheet selection information, wherein said duplex printing of print media sheets has a normal first mode of duplex printing by recirculating said print media sheets after they are printed on their first sides through said printer duplex path of the printer for printing their second sides in said printer before feeding said print media sheets to said printed sheets output path, wherein said printer further includes a graphic user interface, a controller, and stored electronic information corresponding to pre-set print media sheet selections for which said normal first mode of duplex printing of print media sheets is undesirable for that printer, wherein, in response said receipt by said printer of a print job from said remote user terminal with said print media selection information corresponding to said pre-set print media sheet selections for which said normal first mode of duplex printing of print media sheets is undesirable for said printer, said printer automatically switches to a second and different mode of duplex printing in which said print media sheets are fed from said sheet input and printed on only one side and fed to said printed sheets output path bypassing said duplex sheet recirculation path and the portion of the print job for printing the other side of those print media sheets is temporarily stored in said printer controller and said printer graphic user interface automatically displays instructions to unload said printed sheets from said printed sheet output path and reload said printed sheets in said sheet input path in the proper orientation to print their opposite sides and the printing of said opposite sides is initiated from said printer graphic user interface rather than from said remote user terminal.