Bematech MP-2100 TH - Manual (Page 25)

25
MP-2100 TH · Revision 1.1
Appendix I
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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
The printer does not turn on.
The printer does not respond
to the commands sent.
Parallel communication is
faulty.
Serial communication is faulty.
The printer stops printing
Possible Cause
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.
Overheating of the print head
Possible Cause
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
RTS/CTS 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.
Wait until the temperature of the
print head goes below 140°F. The
printer will continue to print from
where it stopped. Open the covers
to help the printer to cool down
faster.