Network related SE79:04
Most HP Designjet printers have built-in networking capabilities. Network settings can be set manually,
but in the majority of cases, they are obtained automatically from the printer. These settings include
many different fields, such as IP address and subnet mask, available gateways, host and domain
names, etc.
In some cases, there can be issues in the firmware that can cause a certain value in one of these fields to
be interpreted incorrectly, and this can lead to a 79:04 system error.
Cause Solution
There is no single set of symptoms that can absolutely pinpoint
a network related 79:04 system error. However, the following
guidelines can be applied:
●
It can happen at start up or when accessing the Network
Configuration section of the FP
●
In both cases, repeating the action with the LAN cable
disconnected does not cause the 79:04 to occur
In the majority of cases, these issues will be due to an issue in
the printer’s firmware. As soon as the conditions where the
issue happens can be understood, it should be escalated to
the GBU through the GCC.
At the same time, the following short term solutions and
workarounds can help the customer to get up and running in
the shortest possible time:
1. Disconnect the network cable to be able to boot the
printer and change network settings
2. In the Network configuration menu in the Front Panel,
disable any protocols that you are not using, including
IPv6, SNMP and WebServices.
3. If step “2” does not work, try setting a manual
configuration of the device:
a. Enter the correct subnet mask and an IP in the valid
range
b. In the GateWay field, set the same value as in the
IP address field
c. Do not set a host name or a domain name
4. If step “3” does not work and the customer is using the
network card which is part of the printer, try using an
accessory Jetdirect card instead.
ENWW
How to troubleshoot the 79:04 system error
29
Troubleshooting
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