printed publications, namely, user manuals for printers, plotters and digitizers and maintenance manuals for printers and plotters; product catalogs featuring computer graphics peripheral equipment; newsletters in the field of computer graphics peripheral equipment; computer printer ribbons; pens; output media, namely, printing papers, vellums and films used for receiving textual and graphical output from plotters and printers; stationery, namely, printing and writing paper and envelopes; and cardboard containers used for shipping or mailing of various products and printed materials