SATO M-8485Se - Page 98

Section 7. Troubleshootin
g
5. When you send the print
j
ob to the printer, and it does not respond, do
you get an error message on your PC that says “Device Fault” or something
similar?
This may mean that the computer doesn’t know the printer is there. Verify
that:
a. Both ends of the cable are securely inserted into their respective
connectors.
b. The printe
r
is ONLINE.
c. The cable is not defective. There are other things that can cause this
error
message on your computer, but at this stage, a defective cable may be one
of the reasons.
6.
When you send the print job to the printer and it does not respond, and
there is no error messa
g
e on the PC:
a. Check your data stream for some of the basics. Is your job framed as
follows?
<ESC>
A
—
DAT
A
—
b. Verif
y
that
y
ou’ve included all required parameters in the data stream.
c. Verif
y
the followin
g
:
• You have not typed a “0” (zero) for an “O” (letter) or vice-versa.
• You have not missed any <ESC> characters where they’re needed.
• Make sure all printer command codes are capital letters.
7.
If you’ve checked all of the above and the printer still isn’t printing, you may
want to try a Buffer Hex Dump to determine what (if anything) the
printer is receiving from your computer. See Printing Hex Dump Labels in
Section 3: Confi
g
uration .
The Parallel port is now listening for incoming data. Send your print job.
The printer will now print (only once) a Hexadecimal (Hex) Dump of
everything it received from the host computer. Each 2-digit hexadecimal
character represents a character the printer received. It may be tedious,
but no
w
y
ou can anal
y
ze and troubleshoot the data stream.
7.
While checking the Hex Dump printout, if you notice 0D
H
0A
H
(Carriage
Return and Line Feed) characters throughout. The command string should
be continuous and no CR or LF characters are allowed between the Start
Command ( <ESC>A ) and the Stop Command ( <ESC>Z ). If you are
using BASIC, it may be adding these characters automatically as the line
wraps. Adding a “width” statement to your program can help to suppress
these extra 0D
H
0A
H
characters by expanding the line length up to 255
Pa
g
e 7-2 SATO “Se” Print En
g
ines