Profile: The Printer Works produces printer repair kits, maintenance kits, roller kits, fusers & fuser kits, memory kits, hp laserjet fusers and hp printers. We sell a variety of HP laserjet printer models and deskjets. Our TPW roller kit for HP laserjet IIISi & laserjet 4si features transfer corona assembly, separation pad, paper pickup roller, delivery coupler assembly, upper fan assembly and gloves.