tree-killer
Free On-line Dictionary of Computing
<jargon, abuse> (Sun) 1. A printer.
2.A person who wastes paper. This epithet should be interpreted in a broad sense; "wasting paper" includes the production of spiffy but content-free documents. Thus, most suits are tree-killers.
This term may derive from {J.R.R. Tolkien's "Lord of the Rings"
(http://sf.www.lysator.liu.se/sf_archive/sf-texts/SF_resource_guide/sfrgft.htm)}. in which Treebeard the Ent uses it to refer to the orcs' master, Saruman of Isengard. Saruman represents, among other things, technology at its most misguided.
See also: dead tree. [Jargon File]
(1999-11-03)
The Jargon File
1.A printer.
2.A person who wastes paper. This epithet should be interpreted in a broad sense; ‘wasting paper’ includes the production of spiffy but content-free documents. Thus, most suits are tree-killers.
It is likely that both senses derive their flavor from the epithet ‘tree-killer’ applied by Treebeard the Ent to the Orcs in J.R.R. Tolkien's Lord of the Rings. See also elvish, elder days, and especially dead-tree version.