Star Micronics Delta user manual Only Difference Is the way They Are Accessed

-

90

Delta

User’s

Manual

-

One

thing

to

remember

about

defining

proportional

charac-

ters:

a

character

cannot be wider than the specified width. That

seems

obvious

enough!

For

example,

if you

specify

a width

of 6 for

--

a character, the seventh through eleventh columns of dots [if you

specified any) will not print. You must, however, send information

-

(even if it is 0) for those columns when you define a character;

Delta

expects

eleven

characters

following

the (ESC) “*” CHR$(l)

-

nl

n2

sequence.

In most cases, the width you select should actually be one dot

wider

than

the

number

of

columns

that

the

character

actually

_

occupies. This is so that there will be a space (of one dot) between

characters

when

you

print

them. If you

specify

a width

which

is

-

exactly

the same

as the

number

of columns

in the character

defini-

-

tion,

the

characters

will

touch when they print (this is sometimes

desirable-for

border

characters

or

for large download characters

-

that are more than eleven dots wide).

-

Printing

proportional

characters

Printing

with

proportional

download

characters

is much

like

-

using

normal

width

download

characters:

one

command

is used

to

select

the

download

set or the

standard

character

set. Here’s

the

-

command:

(ESC) "X" CHR$(n)

-

If n is 1, then

the

download

character

set

is selected, and pro-

-

portional

widths

are

used.

If n

is

0,

the

standard

character

set

is

selected.

-

It

should

be

noted

that

it is

possible

to

use

the

same

character

-

definitions

for

either

normal

width

or

proportional

download

char-

-

acters

(if a valid

proportional

width

is included

in the attribute

byte).

The only

difference

is the way

they

are

accessed:

(ESC)

I‘$”

CHR$(l)

for

normal

width

or (ESC)

“x”

CHR$(l)

for

proportional

width.

The

two

commands

work

independently

of each

other,

so

-

that (ESC)

“$”

CHR$(O)

will not

turn

off

proportional

download

characters, an-d (ESC) “X” CHR$(O) will not turn off normal width

download

characters.

If you

have

selected

both

normal

and propor-

-.

tional

download

characters,

proportional

will

print

until

you

send

the printer an (ESC) “X” CHR$(O). The printer will then continue to

print with normal width download characters (rather than returning

to the standard character set) until you send an (ESC) “$” CHR$(O).

This can

lead

to

confusion

if you

have

accidentally

specified both

types

of download

characters.