Graphics Functions; Eight-Pin Graphics Modes; Select Graphics Mode - Intermec 6820 User Manual

Chapter 4 — Control Code Definitions

Graphics Functions

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For the character value 127 (7Fh):
• When the default SBCS code page is selected, a space is printed
• When other SBCS code pages are selected, the character graphics
symbol is printed.
For character values from 128 to 255 (80h to FFh):
• When the default SBCS code page is selected, the FX-86e Epson
Character Graphics set is printed.
• When other SBCS code pages are selected, the corresponding
character is printed.

Eight-Pin Graphics Modes

All 8-pin graphics functions require parameters, n1 and n2, which
represent the length of the graphics string that follows the select
graphics mode command, and are calculated using a temporary
variable, n.
• n = total number of graphics dots needed for the graphic string
• n2 = integer of (n divided by 256)
• n1 = remainder of the n2 calculation
The simplest calculation, is to divide n (total number of dots needed
for the graphics string) by 256. Then n2 is the quotient (the whole
number) and n1 is the remainder. If you require less than 256 dots
(columns), then n1 indicates the number of dots and n2 is set to zero.

Select Graphics Mode

Enables the graphics mode represented by the variable m in the
Graphic Modes table. The total number of dot columns to print is
represented by n1 and n2. Any graphic string that exceeds the length
of the print line is discarded.
Format
Decimal
27 42 m n1 n2
Hex
1B 2A m n1 n2
6820 Series 80-Column Printer User Manual
ASCII
ESC "*" m n1 n2