AMT Datasouth 41AY89AR777 - Manual (Page 95)

4.5 GRAPHICS
The printer offers dot-addressable raster-scan graphics : Epson MX 80
compatible and DS-180 (Anadex 9500/9501 compatible). This allows the user to
print computer generated charts, graphs, maps and other pictorial images which
help present data in a concise readable form. With Epson graphics the printer can
produce single density graphics with a horizontal resolution of 60 dots per inch
and double density graphics with a horizontal resolution of 120 dots per inch.
Vertical resolution in Epson graphics is determined by the user to a maximum of
144 dots per inch. With DS-180 graphics, the printer can produce graphics with
a horizontal resolution of 75 dots per inch and a maximum vertical resolution of
73 dots per inch (as determhied by user).
As mentioned above, the graphics firmware is compatible with systems which
have Epson or DS-180 graphics software. If the host system is not equipped with
graphics software, the user must purchase or write a graphics driver program.
The prupose of a graphics driver program is to convert information displayed on
the screen to information the printer can use.
4.5.1 EPSON MX-80 GRAPHICS
The printer must be set to Epson mode or IBM Graphics Printer mode to utilize
Epson MX-80 Graphics. When the printer is placed into the Epson graphics
mode it no longer prints characters in predefined groups. In this mode of
operation the user can control each print wire independently. This section will
instmct the user on how to manipulate the print wires in order to “draw” a
specific figure. The user should understand that the following instructions are
intended only to describe the fundamentals of encoding, not to demonstrate the
most efficient way of
programming a particular figure. This is left to the
programming expertise of the user.
The user can control the top eight print wires in Epson graphics. (See 4.8). A
“column” is then eight dots high and one dot wide.
NOTE
The interfacing in some systems will not support eight bits.
These systems can control only seven
print wires, (numbers 2 through 8).
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