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Hexadecimal dump
This feature is useful for programmets who are debugging printing pro-
grams and want to see the actual codes the printer is receiving. (Some
computers change the codes the programmer intended.)
In this mode, all data received will be printed in a hexadecimal dump format,
rather than the control codes being acted on as command codes.
This mode is accessed with the following procedure:
1. While holding both the(PAPER FEEDland ( sE~~ScT Ibuttons down,
turn power ON. A beep tone will be heard.
2. Begin printing. In place of the usual printout you will get a formatted
dump showing exactly what data the printer receives. Each line presents
sixteen characters, their hexadecimal codes to the left and printable char-
acters printed on the right.
3. At the end of the hexadecimal dump, set the printer off-line with the
( ON LINE > button. This is necessary to print the last line.
The following BASIC program is a simple test you can run in hexadecimal
mode:
10 FOR I=0 TO 255
20 LPRINT CHR$(I);
30 NEXT I
40 LPRINT
50 ENP
If your system passes the codes directly to the printer without changing
them, you will get a printout like Figure 2-5.