switched to a thicker core and seems to be doing fine. Now on to the other issues with it. keep getting creases in final laminated print. UGH!!! acts like backing paper is crinkling (i think thats a word) under print causing it to crease. I am trying different speed and such and re-loading backing paper, but so far still has issue during first several feet of laminating. trying to solve, but if any extra advice, i would greatly appreciate it as well.
I'm fairly new on this machine too... and had similar problems. It takes practice and you waste alot of material doing it, but a worthwhile investment. My previous machine was manual, and I got so used to it, that it was just easy peasy. Am figuring out new things the last couple of days on it. TENSION plays a huge part in that creasing problem you're talking about on the sacrificial underlay.
Try playing with the tension up top and down bottom. That is, the laminate roll, and the underlay roll.
Also, it's very important that you feed it in right from the start. If it goes in crooked, it's gonna crease. I personally like folding a bit of the leading edge onto itself so it's not sticky, and pop that through to the other end. Some like using a piece of PVC board instead. Whatever works best for you, stick with it I guess.
Then, there is threading... there are a couple of ways you can have it threaded and it can still 'work' so you gotta make sure you've done it the right way, coz you can easily be deceived that you've got it right when in fact you don't.
