Epson LQ-2500 User Manual page 151

you can see what codes are being sent to the printer. If characters are
printable, they appear as their true ASCII characters. Non-printable
codes, such as control codes are shown by a dot.
I B 3 2 O A OD OA 0 0 OA OD OA OD OD
1 6 3 8 1 2 1B 5 0
7 0 7 0 6 5 6 E 6 4 6 9
4 1
6 E 7 4 7 3 2 0 7 3 6 F 6 C 7 5 7 4 6 9 6 F 6 E 7 3 2 0 6 6 6 F
7 2 2 0 7 0 6 F 7 3 7 3 6 9 6 2 6 C 6 5 2 0 7 0 7 2 6 F 6 2 6 C
Find the hex code, 41, at the beginning of the second line. Then find
the character, A, at the beginning of the second line in the guide
section. The hex code for A is 4 1.
To interpret the non-printable codes, use the ASCII Conversion Chart
on the Quick Reference card to find the meaning of the hex code and
then look at the Command Summary to find what the control code tells
the printer to do.
In the hex dump above, the first hex code, IB, represented by a dot,
is the ESC code. It is followed bv hex 38, which is printed as 8.
Together, these two codes combine to become ESC 8 which is the
control code that tells the printer to ignore the paper-out sensor
The chart below interprets the first six codes for you.
Hex
codes Command Function
lB 38 ESC8
12 DC2
1B50 ESC P
1B 32 ESC2
OA
OD &
If you find codes in your hex dump that you did not enter in your
program or codes you did not expect your application program to send,
your computer may be changing the codes before sending them to the
printer. You will need to adjust the program.
Hex dump mode can be turned off by turning off the printer: it is also
cancelled by an INIT signal from the computer.
D - 6
7 8 2 0 4 4 2 0 7 0 7 2 6 5
Disable paperout sensor
Cancel condensed mode
Select pica pitch
Select 1 G-inch line spacing
Line Feed
Carriage Return
Problem Solving and Maintenance
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