Magnetic, magneto-optical and laser-servoed diskettes and drives; computer tape and computer tape cartridges and drives; rewritable optical disks and drives; recordable optical drives; pre-recorded optical disks and drives; removable and non-removable disk drives, audio and video tape cassettes; dictating cassettes; computer tape diskette drive head cleaning systems; reels, collars, lock-out rings,hold down sponges, splicing tape, label holders, canisters, cases, magazines and stands for diskettes, computer tapes and computer cartridges; imaging, photographic, thermographic, photothermographic, and conventional and digital proofing apparatus including transfer sheets, plates, cameras, enlargers, duplicators and printers; imagesetting plates; metal and polymeric plates; dampening sleeves, developing pads; ductor sleeves; ultrasound imagers; micrographics printers and readers; paper, card and bar code readers, scanners and printers; laser imagers, plotters and printers and associated sheet feeders, stackers and collators; cassettes, magazines, screens, splicers and holders for film; film processors; colour image processors; impact printers; graphics printers; dye sublimation printers; laminators; heat fusers; platemakers; computers; electronic and optical cables; crimpers; digital memory; input-output controller boards and graphics controller boards; keyboards; modems; printing and lithographic plates; cutter clamp pad; software; toners