Appendix H

Technical Specifications

PrintingPrinting method .. . . . . . . . . Serial impact dot matrixPin configuration . . . . . . . . .. 24 wires (12 X 2 staggered, diameter0.2mm)

Printing speed . . . . . . . . .

. .. . . 180 characters per second per line in

 

draft pica; 60 characters per second per

 

line in Letter Quality pica

Paper feed speed . . . . .. . . .

. . . . . Approximately 100 ms/line at l/6

 

inch/line and approximately 2.2 inches

 

per second during continuous line feed

Printing direction . . .. . Bidirectional, logic seeking

 

Unidirectional (left to right) in graphics

 

mode

Character sets . . . . . . . . . . . . . . .. Epson Letter Quality Roman Epson Letter Quality proportional

RomanEpson Sans Serif draftBuffer . . . . .. . . . . . . . . . . . . . 1K or 7K bytes

Line spacing . . . . .. . . . . . . . . . . . Default is l/6 inch. Programmable in increments of l/180 of an inch

H-1