Transparencies can be printed on laser printers or copiers. Computers, printers, copiers, scanners, and fax machine services are also available. Even barcode readers, handheld PDAs, and wireless printers and copiers should be secured. Typical applications of flat flexible circuits include plotters, copiers, and printers. Computers, televisions, VCRs, stereos, copiers, and fax machines are common electronic products. Drawings are now reproduced using plotters and large format xerographic copiers. Passive Components includes electrical components for automotive braking, cell phones, copiers, hearing aids, and locomotives. This machine was similar to roller copiers but copied onto loose-leaf paper. Roller copiers competed with carbon paper technology. Organic photoconductors are now widely used in copiers. Meanwhile, a small lab team was borrowing 914 copiers and modifying them. This resulted in a major shift in the industry that had sold only copiers before. Skupin's first job after college was selling copiers for 3M. Soon, Restell's success began to attract copiers and competition.