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EMULATION DETAILS
The C82315* interface emulates several IBM printers. However, you should be
aware of slight differences in operation caused by mechanical and other differ-
ences between IBM and Epson printers.
The differences for each emulation are described in the following sections.
4214/5224 EMULATION
Epson printers and 4214/5224 printers have the following differences.
LINE-FEED INCREMENT
A 4214 printer advances paper in 1/120-inch increments for continuous paper, and
1/10-inch increments for single-sheet paper. 5224 printers use a 1/72-inch
increment. Epson O-pin printers advance paper in 1/216-inch increments, and
24/48 printers advance paper in 1/360-inch increments. The C82315* interface
calculates the difference in paper advancing increments and corrects for errors
as printing proceeds.
PAPER BINS
A 4214 printer can select from three paper bins; an Epson printer can select from
two. If you select bin 3, the Epson loads paper from bin 2.
GRAPHICS PRINTING
You can create graphics on the 4214 printer by sending the Load Alternate
Character (LAC) command. This is the command used by the IBM programs APF
and BGU. This command defines a pattern to be printed in place of a certain
character, similar to the Epson ESC/P user-defined character feature.
The C82315* interface accepts two variations of the LAC command: the LAC-1
and LAC-2 commands. The LAC-1 command defines a 9-dot wide by 8-dot high
pattern while the LAC-2 command defines a 10-dot wide by a 8-dot high pattern.
The C82315* interface prints graphics data using the quad-density, 240 dot per
inch graphics mode. In order to maintain the proper pitch, each character should
be defined with the following widths:
10 CPI Graphics - 24 Columns
12 CPI Graphics - 20 Columns
15 CPI Graphics - 16 Columns
17.1 CPI Graphics - 14 Columns
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