Epson LX-90 User Manual - IBM PC Jr. 8690 PIC for LX-90 - Page 29

Double-Strike, LX-90, LPRINT This is standard printing., LPRINT CHR$27G

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Page 29 highlights

Emphasized works only in draft pica and NLQ modes. In elite and compressed the dots are already so close together that even with the reduced print speed, the LX-90 cannot fire, retract, and again fire the pins quickly enough to print overlapping dots. You do sacrifice some print speed with emphasized, because the print head slows down and prints twice as many dots, but the increase in print quality is well worth it. Indeed, you may want to use emphasized instead of the NLQ mode for some purposes because emphasized printing is faster than NLQ printing. The code to turn off emphasized is ESCape "F". Double-Strike The other bold mode is double-strike. For this mode the LX-90 prints each line, then moves the paper up slightly and prints the line again. Each dot is printed twice, with the second one slightly below the first as you can see if you run this program, which uses ESCape "G" to turn on double-strike. 10 LPRINT "This is standard printing." 20 LPRINT CHR$(27)"G"; 30 LPRINT "This is double-strike printing." 100 LPRINT CHR$(27)"@" This is standard printing. This is double-strike printing. Unlike emphasized, double-strike combines with any draft pitch (but not with NLQ) because it does not overlap dots horizontally. Since each line in this mode is printed twice, the speed of your printing is slowed. The code to turn off double-strike is ESCape "H". Some users prefer the effect of emphasized, and others prefer double-strike. You can look at the printout below and decide for yourself. This is standard printing ; this is emphasized printing; and this is double-strike printing. 24

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Emphasized works only in draft pica and NLQ modes. In elite and
compressed the dots are already so close together that even with the
reduced print speed, the
LX-90
cannot fire, retract, and again fire the
pins quickly enough to print overlapping dots.
You do sacrifice some print speed with emphasized, because the
print head slows down and prints twice as many dots, but the increase
in print quality is well worth it. Indeed, you may want to use empha-
sized instead of the NLQ mode for some purposes because emphasized
printing is faster than NLQ printing. The code to turn off emphasized
is ESCape “F”.
Double-Strike
The other bold mode is double-strike. For this mode the LX-90
prints each line, then moves the paper up slightly and prints the line
again. Each dot is printed twice, with the second one slightly below
the first as you
can
see if you
run
this program, which uses ESCape
“G” to turn on double-strike.
10 LPRINT "This is standard printing."
20 LPRINT CHR$(27)"G";
30
LPRINT "This is double-strike printing."
100 LPRINT CHR$(27)"@"
This is standard printing.
This is double-strike printing.
Unlike emphasized, double-strike combines with any draft pitch
(but not with NLQ) because it does not overlap dots horizontally.
Since each line in this mode is printed twice, the speed of your printing
is slowed. The code to turn off double-strike is ESCape “H”.
Some users prefer the effect of emphasized, and others prefer
double-strike. You can look at the printout below and decide for your-
self.
This
is standard
printing ;
this is emphasized printing; and
this is double-strike printing.
24