Barnstead International Thermolyne 859 Series, Руководство по обслуживанию

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39
Problem Cause Solution
Printer not printing. The red LED will not illuminate Remove the paper roll from
if paper is removed from the printer. the printer, turn the paper roll
The unit uses thermal paper, which over and reinstall in the printer.
means characters will only show if Perform a hidden key routine
the paper roll is installed properly. ENTER or WEIGHT key. (Found
in operation manual section of
this book). The printer is activated
to print the user and balance
variables immediately. If the unit
prints the variables, the printer
itself is most likely not defective
and the paper roll is installed
properly.
Not printing burn results, but will print Check electrical connections on
user variables when a hidden key is backside of switch on older
performed. The 859 and 945 Series models. In the 1087 and 1275
units are equipped with a printer series units this switch is removed in
software on/off key located below the place of a jumper wire. Wire
green power switch on the front control harness part number WH1087X2
panel. If this switch (SWX108) is in the connects to the A/D Converter PC
“Off” position or defective, the printer Board(PC859X3A) on the J1
will not print during a burn, yet print terminal. Check for continuity or
user variable information during a replace this wire harness, as the
hidden key routine. jumper wire is located on the
terminal connector. If the unit still
does not print after verifying
WH1087X2 is good or replaced, the
A/D Converter PC Board may need
to be replaced.
If the printer does not print any Replace wire harness and/or printer.
information during a burn or when a
hidden key ENTER or WEIGHT is
performed, yet the displays of the NCAT
indicate the unit is functioning properly,
then the printer is defective or the wire
harness ribbon connecting the printer to
the Main Logic PC Board (PC859X1A) is
defective. (The wire harness ribbon part
number is dependent on the series of
NCAT.)
P
RINTER
Troubleshooting