User`s manual

10–4 Graphics
=A65=
MSB
=
ASCII
CHARACTER
DECIMAL
VALUE
BINARY
CODE
EQUIVALENT
TO
VERTICALLY
ROTATED DATA
BYTE
BIT IMAGE
PATTERN
128
64
32
16
8
4
2
1
PRINTED
Figure 10–3. Bit Image Pattern from an ASCII Character
Bit Image Density
You can print bit image graphics in different dot densities. Select dot
densities by sending a control code in the datastream:
• ESC K selects the Single Density mode.
Single Density bit image graphics are printed at 60 dots per inch
(dpi) horizontally and 75 dpi vertically.
• ESC L selects the Double Density mode.
The Double Density mode prints up to twice the number of dots per
inch horizontally in the same space as used for Single Density. The
vertical dot density remains the same as in the Single Density mode.
Double horizontal density requires twice the number of input data
bytes to print the same length line as for Single Density. Printing
double density reduces the printing speed by half.
• ESC Y selects the Double Speed, Double Density mode.
When the Double Density, Double Speed control code is received,
the data will be printed at double the horizontal dot density of single
density graphics, but adjacent dots are not printed. Since Double
Density graphics are printed at half speed, Double Speed, Double
Density graphics are printed at the same speed as are Single Density
graphics.
• ESC Z selects the Quadruple Density mode.