Technical information

2.5.8 LJ250/LJ252 Companion Color Printers
LJ250ILJ252 companion color printers are disposable-cartridge, thermal
ink-jet printers, available with either serial or parallel interface. These
ink-jet printers provide high-quality color graphics with near-letter-quality
text.
Performance
Printing speed
Print technology
Character spacing
Line spacing
Character sets
Graphics
Character printing attributes
Page printing attributes
Color graphics mode
Aspect ratio
Character code
Communications baud rates
Buffer control
Buffer capacity
Text-print speed
Black: near-Ietter-quality, 167 characters/second
(burst); 90 characters/second (throughput)
Color: near-l etter-quality, 55 characters/second
(burst);
20 characters/second (throughput)
Thermal ink jet drop-on demand
Standard: 10/12118 characters/inch
Double width (DEC mode only): 5/6/9 characters/inch
2, 3, 4, 6, 8, or 12 lines/inch
VT100, US ASCII, DEC Technical, ISO Supple-
mental, 14 National Replacement Character Sets,
DEC Supplemental, Roman-8, PC-8, ECMA-94,
ffiM-EUROPE, and National Character Sets
Digital and HPIPCL protocols
Color,
true descenders, superscript, subscript,
bold, italics, underline, double underline, overline,
strike-through
Margins, tabs, printhead positioning, autowrap,
unidirectionallbidirectional printing, transparency
mode
Solid colors (180 x 180 dots/inch): black, cyan,
magenta, yellow, red, green, and blue
Half-tone dithered colors (90 x 90 dots/inch, with
90 x 45 dotslinch in DEC mode only): 255 colors,
HLS system or RGB
1:1, 2:1,
or 2.5:1
Bit serial, character asynchronous, consisting of a
start bit (space), 7 or 8 data bits (1 = mark, 0 =
space), an optional parity bit, and a stop bit (mark)
4800 or 9600
XONIXOFF
or DTR
2 Kbytes of input buffer space
2-76 VAX 4000 Model 300 Technical Information