HP C7769B Service Manual - Page 25

Switch the Printer OFF and remove the LAN Card. Switch ON

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Troubleshooting Formatter/Accessory Card. If the green LED is NOT lit and the LED in the Power Switch is ON, then it could mean that the Formatter/Accessory Card is badly connected or that the Printer if switched OFF. If after reseating the Formatter/Accessory Card, the problem persists, try the following: 1 Switch the Printer OFF and remove the Formatter/Accessory Card BUT leaving the LAN Card installed (if available). Switch the Printer ON. If the Printer powers up correctly and the LAN Card works properly, then try step 2. If the LAN Card doesn't work, then try step 3. 2 Switch the Printer OFF and remove the LAN Card from the current slot and install the Formatter/Accessory Card in the same slot (that was previously used by the LAN Card). Switch the Printer ON and check if the green LED in the Formatter/Accessory Card is lit. If the green LED is NOT lit, it means that the Formatter/Accessory Card is faulty and should be replaced. If the green LED is lit, then switch the Printer OFF and install the LAN Card in the vacant slot. Switch ON the Printer and check if the LAN Card works properly. If the LAN Card does NOT work, then there is a problem with the Electronics Module and should be replaced ⇒ Page 8-24. 3 Switch the Printer OFF and remove the LAN Card. Switch ON the Printer and check if it initializes completely. If it initializes correctly without any problems, then the problem could be with the Electronics Module and should be replaced ⇒ Page 8-24. 4 If the Printer does not even start to power up (i.e. nothing seen on the Front Panel and the LED in the Power Switch is NOT flashing) without the LAN Card nor the Formatter/Accessory Card, but the power switch LED is ON (all the time) the problem could be with the Electronics Module or the Power Supply Unit. n The red LED will flash a few times when the Printer is started up but if it stays lit (all the time) or flashes continuously, then this indicates that the Formatter/Accessory Card is faulty and should be replaced. HP DesignJets 500 and 800 Series Printers Service Manual 1-15

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Troubleshooting
1-15
HP DesignJets 500 and 800 Series Printers Service Manual
Formatter/Accessory Card. If the green LED is NOT lit and the
LED in the Power Switch is ON, then it could mean that the
Formatter/Accessory Card is badly connected or that the Printer if
switched OFF. If after reseating the Formatter/Accessory Card, the
problem persists, try the following:
1
Switch the Printer OFF and remove the Formatter/Accessory Card
BUT leaving the LAN Card installed (if available). Switch the
Printer ON. If the Printer powers up correctly and the LAN Card
works properly, then try
step 2
. If the LAN Card doesn’t work, then
try
step 3
.
2
Switch the Printer OFF and remove the LAN Card from the current
slot and install the Formatter/Accessory Card in the same slot (that
was previously used by the LAN Card). Switch the Printer ON and
check if the green LED in the Formatter/Accessory Card is lit. If the
green LED is NOT lit, it means that the Formatter/Accessory Card
is faulty and should be replaced.
If the green LED is lit, then switch the Printer OFF and install the
LAN Card in the vacant slot. Switch ON the Printer and check if the
LAN Card works properly. If the LAN Card does NOT work, then
there is a problem with the Electronics Module and should be
replaced
⇒
Page
8-24
.
3
Switch the Printer OFF and remove the LAN Card. Switch ON the
Printer and check if it initializes completely. If it initializes correctly
without any problems, then the problem could be with the
Electronics Module and should be replaced
⇒
Page
8-24
.
4
If the Printer does not even start to power up (i.e. nothing seen on
the Front Panel and the LED in the Power Switch is NOT flashing)
without
the LAN Card nor the Formatter/Accessory Card, but the
power switch LED is ON (all the time) the problem could be with
the Electronics Module or the Power Supply Unit.
n
The red LED will flash a few times when the Printer is started up
but if it stays lit (all the time) or flashes continuously, then this
indicates that the Formatter/Accessory Card is faulty and should
be replaced.