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HP LaserJet Quick Reference Service Manual Page 106

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IR Test Tool
If all these elements are properly installed and configured, use the IR
Tester to test the IrDA protocol transmission and device operation.
Designed for troubleshooting IR communication problems, this tool was
developed by Genoa Technology, Inc., in cooperation with Hewlett-
Packard. The part number is 5062-4661. Order it through
HP Parts Direct Ordering (see inside back cover).
To test the peripheral device:
1 Put the LaserJet printer in
2 Press the "Peripheral Test" button on the tester. The LEDs on the
tester will illuminate in sequence.
If the "PASS" LED lights, the test was successful, which indicates that
communication with the printer's IR port is functioning normally. A self-
test page will print as a result of the test.
If the "TEST" LED goes out and the "PASS" LED fails to light, the
printer's IR port is not functioning correctly.
To test the host computer:
1 Place the tester on a table in front of the PC's IR port.
2 Press the "Computer Test" button. The tester will sequence the
LEDs.
If the "PASS" LED lights, the test was successful, which indicates that
communication with the computer's IR port is functioning normally.
If the "TEST" LED goes out and the "PASS" LED fails to light, the host's
IR port is not functioning correctly.
104 – Input/Output (I/O)
mode.
READY
EN

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