The TubeScan Portfolio
You are looking for an affordable web monitoring and 100% print inspection solution:
Check out the TubeScan digital strobe here
TubeScan digital strobe seems to be the product you need but you have to go faster than 250m/min (820ft/min):
Check out the TubeScan speed strobe here
You would like to combine 100% print inspection with a detail viewing video camera:
Check out the TubeScan eagle view here