Brother
CalComp
Canon
Citizen
Compaq
Digital Equipment Corp.
Eltron
Encad
Epson
Fujitsu
GCC Technologies
Hewlett Packard
IBM
LaserMaster
Lexmark
Minolta
NEC
Okidata
Olivetti Lexikon
Panasonic
Ricoh
Sharp Electronics
Tektronix
Texas Instruments
Xerox