You can leave files in your queues, I do it all the time.......actually on any given day, neither of my queues are empty.
I keep stuff there for lots of different reasons
If you don't want to stop and laminate your job after you print it, that's fine
You can keep printing as many other jobs as you want in between and go back to that file later
Just be very careful and remember to leave some room after the last set of reg marks or else you'll need to SECURELY tape a tail piece onto your sheet
And NEVER, NEVER revisit that "get media size" button with that specific file until you get it laminated
Because I have that baby laminator, sometimes I need to get a little creative and rotate my print to get it through the laminator. I've even needed to (because of stupid planning on my part) had to cut my laminated piece lengthwise ....which in turn made me need to move my pinch rollers when feeding it back for cutting
No big deal, our machines will still read those reg marks, even if you move the rollers
But, but, but, if you center on media or if you absentmindedly hit that get media size button, you'll most likely be cooked!
I tested blade force until I got a clean cut-started at 60 and ended up at 175 for the same Oracal 3165RA and the Oracal (can't remember #) laminate. 'Sometimes' with a new blade I can go to 150 but that's rare.
I wouldn't do it Candy
In an effort to save a couple of inches of blank vinyl, you'd need to do an enormous amount of juggling, praying and keeping your fingers crossed........and probably ruin the whole run you're trying to laminate anyway
Even if you could figure out a way to get the piece in there nice and straight while still connected to the BIG, HEAVY roll, cutting the laminate and then reversing the laminated piece to get it back out of the machine.......you'd now be left with sticky laminate flapping in the breeze sticky to everything in sight
You'd waste way more than a few inches of laminate trying to get the machine back to where it would be ready to accept another job
Sometimes it takes a foot or so for a new roll of laminate to get itself set
Don't forget, we're only talking about a couple inches of blank vinyl
None of my business but you shouldn't be figuring your profit that close that a couple of inches makes that big of a difference