Abstract: Printing systems with a printing apparatus outputting plural regular print job set sheets in a process direction typically have a control system and an output system with a stacking tray in which the print job set sheets are stacked. The printing apparatus may also occasionally output, into the same stacking tray, purge sheets for removal, as determined by the control system. Here the output system includes process direction sheet offsetting apparatus controlled by the control system for automatically substantially offsetting the purge sheets in the process direction in the stacking tray relative to the regular print job set sheets, so that the purge sheets are readily visible and graspable for removal from the regular print job set sheets even from within a regular print job set, and are not stapled. The printing apparatus can thus continue to print and output more regular print job set sheets on top of the purge sheets.