I fix roll laminators for a living around the pittsburgh area. the 4250 red heat rollers arent driven at all. fold the film over the threading card and turn the rollers by hand untill the film & card reaches the back rollers which are driven, insert the film and card turn drive on and the machine will pull the film thru the machine. do this when the machine is cold so you dont burn your hands. if you have any questions feel free to give me a call, telephone tech support is always free;0
bob haller service and sales pittsburgh pa 412 366 4906, November 2013