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292 DEC LA210 Control Commands
The table below assumes 12.0 or 6.0 set prior to beginning graphics.
Dots/ Aspect Dots/ Inches/
(n) inch Overlap ratio line line
2 240 64.29% 3.36 3168 13.2
3 240 64.29% 3.36 3168 13.2
4 180 52.38% 2.08 2376 13.2
5, 0, or 1 180 40.48% 1.67 2376 13.2
6 120 28.57% 1.39 1584 13.2
7 120 28.57% 1.39 1584 13.2
8 90 04.76% 1.04 1188 13.2
9 90 04.76% 1.04 1188 13.2
Note
: Graphics densities available in the 4100 printer are different than
graphics densities on the DEC LA210 printer. The differences are
mentioned in "Graphics Density Differences" earlier in this section.
d1 through dx are data byte values from 63 decimal to 126 decimal (3F
hexadecimal to 7E hexadecimal), each representing a graphics dot
column. Subtract 63 decimal from each byte and convert the result to an
8-bit binary expression. The bits set to logic 1 in the binary expression
correspond to the printhead pins that fire to create dots in each dot
column. If a bit is set, the corresponding pin fires. If it is not set, the
corresponding pin does not fire. In each line, 6 printhead pins may fire
during graphics. The least significant bit in the binary expression
corresponds to the top pin. See the following examples.