Initial Checklist; Troubleshooting The Centronics (Parallel) Interface - SATO M5900RV Operation Manual

6. Troubleshooting

6.2 Initial Checklist

If you are unable to produce output on the M-5900RV, check the
following before deciding you are unable to proceed any further.
1. Is the printer powered on and ON-LINE?
2. Is the Print Head and the Label Hold Down in the down and
latched position?
Other areas that may need looking at include:

6.3 Troubleshooting the Centronics (Parallel) Interface

1. Is the IBM parallel printer cable connected securely to your par-
allel port (DB-25S Female) on the PC and to the Centronics con-
nector on the printer?
Warning: Never connect or disconnect interface cables (or
2. Is there more than one parallel interface port on your PC (LPT1,
LPT2, etc.)? If so, make sure you are sending data out the cor-
rect port.
3. 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 is 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 defec-
tive cable may be one of the reasons.
4. 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
48
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.
Operation Manual
M5900RV