Oki 182 Handbook page 77

_ _ _ _ _ _ _ _ _ _ CHAPTER 3 PROGRAMMING
Maximum Graphics Columns Per Line
<:;raphi~s mo~e
ESC K
(Single Density)
480
816
ESC LIESe
y
(Double Density)
960
1,632
ESC Z
(Quadruple Density)
1,920
3,264
If the value entered is greater than the allowed maximum, the proper
maximum value will automatically be entered.
3. Graph ics Data
The last part of the graphics statement contains numeric data that
tells the printer to print dots at specific positions in each column.
It is easiest to layout your image on graph paper, filling in the
squares where you want a dot to appear. (If you want to use higher­
density graphics, keep in mind that the columns will overlap, and
remember any restrictions that may apply.) Then divide the image in­
to strips of eight rows. Each row will be programmed as a separate
LPRINT statement.
Each position in the column has a numeric value as shown in the
table below. Simply add the values of the column positions where
you want dots to appear, then enter the total in your LPRINT
statement.
IF YOU ARE FAMILIAR WITH BINARY NUMBERS: Each column is represented by an 8-bit
binary number. A dot represents
a
"1" and
a
space is "0"; the top dot is the MSB (most
Significant bit) and the bottom dot is the LSB (least significant bit). The bit positions are shown
in the table for reference. You can use the ASCII code chart in Appendix 0
as a
conversion
table.
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