I just noticed something about my Z3100 that's a bit troubling.
If you lift the lid anytime during a paper cut procedure, either while the head is moving to the left to pick up the cutter blade or moving to the right while cutting it will finish the cut even with the lid up.
Less importantly if you lift the lid while printing the head will continue to the end of its current pass, either left or right before stopping.
On my Roland FJ-500 if I lift the lid at any time during cutting or printing the head stops immediately which is what I believe the proper action should be.
Am I crazy or is this a bug in this printer? I don't know how large format Epsons or Canons work.
Thanks.