SATO M-10e TT/DT Printers Service Manual
PN 9001098
Rev. A
8-4
Section 8. Troubleshooting
8.3 The IEEE1284 Parallel Interface
1. Is the IEEE1284 printer cable connected securely to your parallel port (DB25S
Female) on the PC and to the Centronics connector on the printer?
WARNING: Never connect or disconnect interface cables (or use a switch box) with
power applied to either the printer or the host. This may cause damage to the
interface circuitry and is not covered by warranty.
2. Does the Parallel Interface cable used meet IEEE1284 specifications? If it does not
and you are connected to an IEEE1284 or ECP parallel port on the computer, the
printer may not be able to communicate correctly.
3. Is there more than one parallel interface port on your PC (LPT1, LPT2, etc.)? If so,
make sure you are sending data out the correct port.
4. Is the IEEE1284 Interface Module installed in the printer? Older versions of the
Parallel Interface module will not work correctly in the M-10e printer.
5. When you send the print job 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 printer in ON-LINE.
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
message on the PC.
a. Check your data stream for some of the basics. Is your job framed as follows?
<ESC>A—Data—<ESC>Z
b. Verify that you’ve included all required parameters in the data stream.
c. Verify the following:
• 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.
• Your protocol codes are set for Standard or Non-Standard and data stream is con-
sistent with these.
7. If you’ve checked all the above and the printer still isn’t printing, you may want to try
a Receive Buffer Hex Dump to determine what (if anything) the printer is receiving
from your computer. See Hex Dump Mode in Section 8-11.
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.
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