The company produces printer and copier paper, envelopes, corrugated packaging and pulp. During his tenure, Xerox introduced the Xerox 6500, its first color copier. Haloid introduced the first commercial xerographic copier, the Xerox Model A, in 1949. A longtime copier company, Xerox played to their strengths. Ikon is now part of the copier manufacturer Ricoh. The first electrostatic color copier was released by Xerox (the 6500) in 1973. Canon's largest division in terms of revenue is its multifunction copier division. Imagistics International was spun-off from Pitney Bowes' copier and fax business in 2001. A great advantage of digital copier technology is "automatic digital collation". Its small cabinet could be installed into any "copier room" office environment. In the mid-1970s Pati Hill did art experiments with an IBM copier. The base for this process is conventional copier technology. The 1385 was not actually a viable copier because of its speed of operation. There are also cost advantages over a copier at higher volume. Ten years later in 1973, a basic, analogue, color copier, based on the 914, followed.