The DEC LP20B Line Printer

Photo

Mechanism:             Rotating drum, ribbon, and hammers
Paper:                 Fanfold, pinfeed, 1 to 6 parts
Speed:                 240 lines/minute, 2 drum revolutions per line
Columns:               132
Spacing:               10 characters/inch horizontal, 6 vertical
Character set:         96 ASCII printing characters
Interface:             UNIBUS

Date: About 1975.


Frank da Cruz / fdc@columbia.edu / Columbia University Computing History / Jan 2001