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Data Dump Mode
3.
Run any program that causes the printer to print (either an
application program or one in any programming language). The
printer prints out all the codes sent from your computer. An
example of a data dump printed in LQ emulation mode is
shown below.
On the left side of the printout all the codes are printed in
hexadecimal format. On the right side of the printout all
printable characters are printed, and the others, such as control
codes, are represented by dots.
4.
To turn off the data dump mode, press ON LINE to set the printer
off line. If the display reads FF, press FORM FEED to print any
remaining data in the printer’s memory.
5. Turn off the printer.
By reading the characters printed in the text field on the right side of
the data dump printout (see step 3) or the printout of hex codes, you
can check which codes are being sent to the printer.
To interpret the sample data dump printout, examine the first three
hex codes on the second line of the printout sample (20 20 54). Each
hex code 20 represents a space; hex code 54 represents the letter T.
Check the second line of the text field on the right side of the
printout and you will find the letter T preceded by two spaces.
Troubleshooting
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