Found the solution, thanks to Juan Cabello.
Tray needs to be configured as TYPE: Preprinted, so the printer makes the correct sequence to print duplex pages in order.
Hope it helps.
Workcenter 7855i, System software 073.040.075.34540. No Finisher.
PC running Windows 7 & Word 2007 SP3.
3 Print drivers tested: PrintSetup.WC78XX_5.433.16.0.exe, Postscript, Global Print Driver v5.469.9.0 PS and PCL.
Simptom: printing any 3 pages document double sided, 7855i prints page 1 and 2 correctly in 1st sheet, but page 3 is printed in back side of 2nd sheet (paper is preprinted).
Problem is present using any of the three drivers tested.
Problem is NOT present if we print from another application such as Acrobat.
Problem is NOT present if documents are larger that 3 pages.
Has anyone seen this behaviour before?
Thank you very much in advance
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