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ESC
Y
Dual Density Bit Image
ESC Y
Ln Hn n1 n2 nk
This
command is processed in the same way as the ESC L
(Dual
Density
Bit
Image) command.
ESC Z
High Density Bit Image
ESC Z
Ln Hn n1 n2 ... nk
4-42
This
command changes the printer from text to bit image printing
at horizontal dot density of 240 dpi. Each data byte
(nk}
repres-
ents one column of 8 dots. The vertical dot density is determined
by the active horizontal-to-vertical aspect ratio. The aspect ratio
is
selected by the ESC n command. The default aspect ratio is
5:6. The number of bit image data
bytes
printed is equal to 256
times
Hn
plus
Ln.
All text printing modes are suspended by the
bit image printing mode. Bit image
commands
and text may be
mixed on the same line. The printer ignores any bit image data
which would print beyond the
right margin
or more than 3168
bytes for a line length of 13.2 inches.
5:6 Aspect
Ratio:
When this aspect ratio is selected, the printer
assumes a horizontal dot density of 240 dpi and a vertical density
of 72
dpi. For
a
complete
discussion, see the description for the
5:6
aspect
ratio in the ESC K
(Normal
Density
Bit
Image)
command.
.........
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