Tally Genicom Matrix Printer Oversized Versus Expanded, Setting the Expansion

7265 Programmer’s Manual 66

Oversized Versus Expanded

There are two ANSI functions that print characters scaled according to the Graphics Size Modification

parameters. Both expanded and oversized are standard f eatures with this printer. You can get into expanded

mode accidentally when you send the Graphic Size Modif ication sequence.

100 LPRINT CHR$(27);"[720e"; 'vp_relative

110 LPRINT "Expanded ";

120 LPRINT CHR$(27);"[400;400 B"; 'graphic size mod

130 LPRINT "ABCj" 'drops into expanded

140 LPRINT CHR$(27);"[0t"; 'cancel mode

150 LPRINT "Oversized ";

160 LPRINT CHR$(27);"[1|"; 'set oversized

170 LPRINT "ABCj"

180 LPRINT CHR$(27);"[0t" 'cancel mode

Expanded mode is based on the current font, is limited to 8x the parent font size, and propagates

up from the baseline. Reverse paper motion occurs for vertical expansions. The horizontal

resolution reflects the current font selection. If you send a line feed character while in expanded

mode, then the paper advances by the current vertical ex pansion factor times the current line-

feed increment.

Oversized is based on a unique font, is rotatable, expandab le to 1870x, and propagates down

from the top of the character cell. The resolution is always 120 dpih x 144 dpiv. If you send a line

feed character while in oversized, then paper advances five dot rows for 0o rotation, or

nine dot rows for 270o rotation. The scaling algorithms for the oversized function are

obviously better.

Setting the Expansion

The size of the parent oversized font is 10 points (12 cpi) . You can set the horizontal and vertical

dimensions of oversized characters separately in incr ements of 100% of the parent font size.

Limits are 100% to 18,700%. The larger number corresponds t o an uppercase M about 18.7

inches high. The control sequence that sets the expansion is the ANSI Graphic Size Modification: