102
HPIIISi TWINAX CARD
8.5 Self-Diagnostics
You can set up the HPIIISi Laser Card to perform a complete analysis of its
own functions. The Card transmits data to itself and then analyzes how that
data is processed. If the Card detects an error, it prints an error message on
the printer.
Follow the steps below to perform the Card’s self-diagnostic test.
CAUTION!
To avoid damaging your host system, you must disconnect the host
before you run this test.
1.
Turn OFF the printer.
2.
Disconnect all cables from the printer and the Card.
3.
Take the Card out of the printer.
4.
Locate the plastic jumper on the Card’s circuit board, near the paral-
lel port labeled “Parallel In From PC/LAN” (see Figure 8-1).
5.
Remove the plastic jumper from the pin.
6.
Locate the two pins labeled “J8 DIAGNOSTICS”.
7.
Insert the plastic jumper so it covers both pins, shown as “J8 CLOSED”
below.
Figure 8-1. The Card’s jumpers.
J7
J6
J8
DIAGNOSTICS
J8
OPEN
J8
CLOSED