FARGO electronic Pro-LX Laminating Card Printer/Encoder - Manual (Page 52)

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Pro-LX Laminating Card Printer/Encoder User Guide (Rev. 5.0) 52
Resolving the Blank Output issues (continued)
Step Procedure
4 Check the Printhead connections.
a. Open the top print cover.
b. Remove the two (2) thumbscrews from the Printhead cover plate and
remove the cover plate.
c. Check to ensure that Power and Data Cables (that connect to the
Printhead) are properly seated.
d. Remove the Back Cover.
e. Ensure that the Printhead Power Cable is properly seated on J15 on the
main board.
f. Ensure that the Printhead Data Cable is properly seated on J16 on the
main board.
5 Ensure that the proper voltage is being applied to the Printhead.
a. Remove the back cover.
b. Using a Digital Voltmeter, connect the negative lead to ground.
c. Probe Pins 1 to 5 of the Printhead power connection on J15.
d. Ensure that a voltage between 22 to 23 VDC is read on each pin.
e. If less than 22 volts is read on any of the pins, ensure that the Power
Supply for the Printer is outputting 23 to 24 VDC by testing the power
connection to the Printer with a voltmeter.
f. If the power supply is operating properly, the Main Board may need to be
replaced.
g. If 22 to 23 volts is read from Pins 1 to 5 on J15, check to ensure that the
wires from the Printhead Harness cable are in good condition and are
not pinched.
h. If the Printhead harness cable is in good condition, replace the Printhead
(as needed).