Epson FX Series User Manual page 184

If L is read as zero, line 70 causes the program to ignore line 80. This
enables the printer to print the center portion of the X, where the
diagonal fall meets the diagonal rise at a point and no low section is
required.
Line 90 serves two purposes. It forces a line feed each time a nega-
tive number is read, and it skips the last three steps of the four-step
cycle so that each print line can end on a low.
If your computer system requires a WIDTH statement to prevent
the printer from issuing a carriage return before the graphics line is
complete, add it now:
7 WIDTH LPRINT 255
The format for this statement may be different for your BASIC; see
your software documentation.
To print the program with one line of data, add lines 40 and 190 (the
latter differs for the FX-100):
40 LPRINT G$;
190 DATA 3,20,2,3,12,3,22,14,8,14,6,-1
and RUN it.
The negative number at the end of line 190 signals the end of the
print line.
The last program changes add a loop to print 17 lines and enter the
data statements. (All the data lines differ slightly for the FX-100):
30 FOR D=l
90 IF H<0 THEN LPRINT: GOT0 140
140 NEXT D: GOSUB 160
DATA
200
DATA
210
DATA
220
DATA
230
DATA
240
DATA
250
DATA
260
DATA
270
DATA
280
17:
TO PRINT
3,20,3,3,10,3,21,18,4,18,4,-1
3,20,4,3,8,3,21,5,8,5,2,5,8,5,3,-1
3,3,22,3,6,3,22,3,12,3,2,3,12,3,3,-1
3,3,23,3,4,3,23,3,12,3,2,3,12,3,3,-1
3,3,24,3,2,3,24,3,12,3,2,3,12,3,3,-1
3,3,25,3,0,3,25,3,12,3,2,3,12,3,3,-1
3,20,9,6,5,15,5,18,3,3,12,3,3,-1
3,20,10,4,6,15,7,14,5,3,12,3,3,-1
3,20,9,6,5,15,5,5,6,5,3,3,12,3,3,-1
"ROw;D
167