Keep Perforating Rule from Printing.
This procedure can help save your rollers and add to productivity only when running Perforating or Cutting Rule perpendicular to roller travel. Simply place a Ramp made of several layers of Duct Tape as pictured on the Roller Bearers at the point where the Rollers cross the Rule. When finished job take ramps off and stick on the press for use next time.
Below shows Numbering and Perforating raffle tickets 2 on without printing Perf rule.
Be careful when using ramp at the top or bottom of chase because the roller springs are already pulled out and there will not be enough spring travel left to lift rollers and you could damage your press.