Bematech KF-6580 - Manual (Page 20)

User’s Manual
20
Chapter 6
Troubleshooting
The following table described some of the problems that might occur while using the printer. For every problem
there is a possible cause described here and a suggested procedure to solve the problem.
Problem Possible Cause Procedure
Check if there is a central switch
for the room / outlets. Connect
some other equipment to the
outlet to check its operation.
Turn off the printer, check the
power cord’s continuity and a
perfect connection between the
printer and the electric outlet.
Check for a good connection
between the printer and the
host or change the cable.
The programming sequences
can be checked in the dump
mode. Put the printer in dump
mode and run your application
again. The printer will show the
hexadecimal and ASCII codes of
all bytes being received from the
host.
Check for a good connection
between the printer and the
host or change the parallel
cable.
Check the correct pin layout in
this manual.
Check for a good connection
between the printer and the host
or change the serial cable.
Check if the pin layout used
complies with the protocol being
used for data transmission.
Remember that the printer uses
the DTR/DSR protocol.
If the baud rate set on the printer
is different from the baud rate of
the host, the printer will print
random characters or not print at
all. Check carefully the host’s
serial baud rate configuration as
well as the printer’s DIP switch
settings.
There is no power in the
electric outlet.
A problem with the power
cord – it may be broken or not
well connected to the printer
and / or outlet.
The parallel / serial / USB
cable has one or more lines
with faulty connections /
broken wires.
Wrong programming
sequences.
The parallel cable has one or
more lines with faulty
connections / broken wires.
The pin layout does not follow
the Centronics standard.
The serial cable has one or more
lines with faulty connections /
broken wires.
The pin layout does not follow
the correct protocol.
The baud rate is incorrectly set.
The printer does not turn on.
The printer does not respond to
the commands sent.
Parallel communication is faulty.
Serial communication is faulty.