As a folder operator, your job duties involve working a machine that folds, slits, or scores printed sheets to prepare them for binding. In addition to running the folding, perforating, and cutting equipment and ensuring correct production, your responsibilities may include system set-up for each job including setting rollers, cutters, glue applications, and perforation equipment. You need to be at the machine during the folding run to make adjustments if necessary. You also load sheets into the folder.