Abstract: A tray for holding a media roll being fed to a paper path of a copier/printer including a plurality of wall defining a chamber, the chamber including: an open portion thereof for receiving the print media roll; a cover for opening and closing the open portion of the chamber, a first seal associated with the chamber and cover, for preventing air from exiting or entering when the cover closed, a sheet slot defined in one of the plurality of wall, for feeding print media therethrough to the paper path of the copier printer; and a second seal, associated with the sheet slot, for to preventing air from exiting or entering the chamber as roll media is fed.

Abstract: A copier/printer that employs a plurality of roll media includes a paper path monitored by a plurality of dual use sensors. The first use of the sensors is to initialize the lead edge of each media roll and the second use of the sensors is as jam detectors. When media is coming from a position lower than other media rolls, each sensor along the paper path is used in a timing sequence to monitor the media lead edge and indicate a jam if the media does not reach particular sensors in accordance with the timing sequence.

Abstract: A scorotron screen for use in a negative corona scorotron charging device comprises a beryllium copper alloy which reduces the problems associated with parking deletions in elecrophotographic process. The screen is fabricated by stamping from beryllium copper sheet metal. Heating the stamped member to a stress relieving temperature induces a tension on the member which enhances flatness.