Filter
Top Products
Copying ROM to RAM
In many cases, you will want to redefine only a few of the characters
to suit your needs, and keep the rest of the alphabet. As you have seen,
it is possible to switch back and forth between the normal character set
and the userdefined character set, but it’s inconvenient.
Therefore, the LQ-2500 has a command which allows you to copy all
of the standard characters from ROM to the user-defined character set.
The command format is:
ESCape “:” 0 0 0
Note
This command will cancel any user-defined characters you have
created. You must send this command to the printer before you define
characters.
If you use this command at the beginning of a program, define your
special characters and select the user-defined character set. You can
then print with the user-defined set as your normal character set. You’ll
never need to switch back and forth between sets.
Letter Quality characters
If you select Letter Quality printing with the EC ‘xl” command, you
can design user-defined characters using up to 29 columns of the Letter
Quality/Proportional grid. The dot columns are spaced closer together
horizontally than draftquality dot columns (the horizontal dot spacing is
1/360th of an inch as opposed to 1/120th of an inch for draft
characters).
Proportional mode characters
Selecting the proportional character mode will yield user-defined
characters of the highest resolution. Characters can be designed using
all 37 columns of the Letter Quality/Proportional grid (see Figure 6-S).
Remember that in Letter Quality and proportional, as in draft, you
cannot place dots in adjacent columns. There must be an empty dot
position to the left and right of each dot that prints.
6-18
Graphics and User-defined Characters