Abstract: A method and apparatus using a duplex printer to print indicia on the back side of a printed page to provide privacy for confidential information appearing on the front side and/or indicia to indicate that information which previously appeared on the back side of a printed sheet is not relevant to the information appearing on the front side of the printed sheet.

Abstract: An apparatus for providing prioritized data to a printer and PHD includes a print preview application on a host computer for displaying a print job and the total number of pages in the print job. A scan application on the host computer obtains the total number of pages of the print job from the print preview. A printer driver connected to the host computer, to the print preview application, and the scan application, transforms the print job into printer acceptable format, the format starting with the total number of pages of the print job. A printer is connected to the printer driver and a PHD is connected to the printer and the printer driver so that together the printer and PHD receive the print job from the printer driver starting with the total number of pages of the print job.

Abstract: Paper decurling is achieved at the output of a printer or other paper handling machine by discharging sequential sheets of the paper into an angled tray. Upon sensing of the paper at a predetermined height, paper curling is presumed and the tray is caused to drop. This causes the sheets to slide against an end stop and drop down with the tray. The tray then returns back upward, whereupon the sheets, which are sliding against the end stop are decurled at an end of the tray facing the discharge portion of the paper handling machine. The movement of the tray is further controlled so as to establish the stack at a uniform predetermined height at the end of each print job.