Epson SQ-2000, Operating Manual

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2. Write a file on diskette and then use the DOS COPY command
with the /B option to send it to the printer (i.e. COPY
PRNTFILE/B PRN). Open the file for random access or the
ASCII decimal 26 may be interpreted as an end-of-file marker.
3. Buy a copy of Compaq DOS 2.1. The BASIC that comes with
this operating system has all of the features of IBM-PC BASIC,
but doesn’t have the problem with ASCII decimal 26.
QX-10 Computers
There are two problems for QX-10 computer users. The first is
sending more than 80 characters per line to the printer and the
second problem is sending the code ASCII 9 (horizontal tab).
To get the printer to accept more than 80 characters, use this
width statement (preferably at the beginning of your program):
WIDTH LPRINT 255
This will reserve extra room and a line feed (with carriage
return) will not be sent after 80 characters.
Microsoft BASIC is one of those languages that has trouble
sending the horizontal tab code (ASCII 9). It automatically con-
verts ASCII 9 into a series of spaces to advance the print head to
the next tab position. Since the SQ-2000 understands tabs, it can
cause problems (i.e. with graphics). One way to avoid this prob-
lem is to use its high-order counterpart ASCII decimal 137. This
is achieved by adding 128 to the problem code (128 + 9 = 137).
Any problem codes you find with the QX-10 can be sent
directly to the printer with OUT statements. The following
routine will send any code (X in the routine) to the printer:
100 IF (INP(&H15) AND &HF8)<>200 THEN 100
110 OUT &H14, X
120 OUT &H17, 0 : OUT &H17, 1
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