User`s manual

10–5Graphics
When printing Quadruple Density graphics, the printer pairs
adjacent quadruple density bit image bytes. The compounded data
are then printed in the Double Density mode. Printing at quadruple
density reduces the printing speed by half.
Bit Image Programming Format
The Bit Image command format is:
ESC CC(n1)(n2)DATA
where:
ESC = the Proprinter compatible header
CC = K, L, Y or Z to select dot density
(K=single, L=double, Y=double–density, double
speed, Z=quadruple density)
n1, = (Number of DATA bytes) – 256(n2)
n2 = (Number of DATA bytes)/256
DATA = the dot pattern bytes
The syntax of the Bit Image expression must be correct.
The number of data bytes and the n1, n2 definition must be equal.
Any characters following n1 and n2 will be interpreted and plotted as data
until the n1, n2 definition is satisfied.
If n1 = n2 = 0, then control codes K, L, Y, or Z are ignored.
The maximum number of data bytes that can be included in the DATA
portion of the program statement (when using 132 column paper) varies
according to the dot density:
At 60 dpi, Single Density = 792 bytes;
Double Density = 1584 bytes
Quadruple Density = 3168 bytes
Data in excess of the right margin are discarded.