Abstract: A document-endorse arrangement has a document transport mechanism wherein documents are advanced down a track past one or more print stations where a jet-print nozzle array projects an ink stream to the document. One or more angled air streams arise from the track. Each air stream is directed downstream of the track at an acute angle of approximately 20 degrees with respect to the track. At least one of the airstreams is upstream of the nozzles and is adapted to pneumatically float each document past the nozzles so as to maintain a prescribed gap between the document and both the track and nozzles. This inhibits contamination of the nozzle from surplus ink and dust.

Abstract: A sheet transport array for advancing sheets along a track at a desired speed past a process station. A sheet speed measuring device is coupled to the process station. A drive roller assembly includes at least a drive roller and a drive idler, with the drive roller driving the advancing sheet at the desired speed toward the process station. A second roller assembly includes at least a second roller and a second idler, with the second idler moving at the speed of the advancing sheet. A floating roller assembly includes at least a floating roller and a floating idler. The floating idler is coupled to the second idler to move at the same speed as the second idler and the advancing sheet. The floating roller and the floating idler define a pinch point with a pinch force such that the floating roller and the floating idler move at the same speed.