Epson FX-80 Specifications download pdf (Page 79)

The way Double-Strike gets this result is rather clever: the FX prints

each character in the regular fashion until it reaches either the end of

the line or the point at which you have Double-Strike turn off. Then

the FX shifts the paper up slightly and prints the Double-Strike pas-

sage again. This means that every dot in each row of the character gets

a shadow (see Figure 4-1). Double-Strike Mode fills in some of the

more visible gaps between the dots of a character. The end result is

better looking print.

Figure 4-1. Single-Strike and Double-Strike letters

Differences between Double-Strike and Single-Strike printing don’t

stop with the quality of print. Since each passage prints twice, the

throughput of the Double-Strike Mode is less than that of Single-

Strike. It’s the old trade-off between speed and print quality. With

normal print speed of 160 characters per second (cps), the FX still

moves along pretty quickly in the Double-Strike Mode.

Emphasized Mode

There is yet another way you can increase the boldness of your

printed characters. ESCape “E” produces what we call Emphasized

print. As in Double-Strike, each character gets two sets of dots. In

Emphasized, however, the print head does not make two passes and

does not move down the page. Instead, it slows down so that it can

print overlapping dots, and prints each dot twice, the second time

slightly to the right of the first, as illustrated in Figure 4-2.

To see Emphasized, add these lines to your program:

LPRINT CHR$(27)"EEMPHASIZED ADDS A TOUCH OF

CLASS"

LPRINT CHR$(27)"@"

1 2 ... 74 75 76 77 78 79 80 81 82 83 84 ... 267 268

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Epson FX-80 Specifications Page 79