Technical information

2.5.1 LA75 Companion Printer
The LA75 is a high-speed, dot matrix printer designed for the office
environment.
Performance
Printing speed
Print technology
Print density
Character spacing
Line spacing
Graphics
Character sets
Buffer capacity
Communications
Baud rates
Character code
Interfaces
Paper
Type
Draft mode: 250 characters/second
Memo mode: 125 characters/second
Near-letter-quality mode: 42 characters/second
Letter-quality mode:
32 characters/second
Bidirectional,
dot matrix
Draft mode: 12 x 9 matrix
Memo mode: 24 x 9 matrix
Near-letter-quality mode
Letter-quality mode:
36 x 18 matrix
Bit-map graphics mode
10, 12, 16.5, 17.1 characters/inch (standard-width
characters)
5, 6, 8.25, 8.55 characters/inch (double-width
characters)
2, 3, 4, 6, 8, 12 lines/inch
Digital sixel protocol
Nine built-in character sets: U.S. ASCII, National
Replacement (NRC), ISO 8-bit Supplemental,
DEC Supplemental, VT100 Special Graphic, DEC
Technical, plus IBM Proprinter Line Drawing,
Chart Drawing, and Symbol Drawing sets.
2047-character
input buffer
11 0 to 9600 bits/second
7- or 8-bit ASCII with odd, even, mark, space, or
no parity
EIARS-423
EIA RS-232-C parallel
Fanfold. Form width: 11.4 cm to 25.4 cm (4.25 in
to 10 in)
Single-sheets: 21.6
cm x 27.9 cm (8.5 in x 11 in)
Envelopes
2-62 VAX 4000 Model 300 Technical Information