HP PN1050 - Manual (Page 13)

ENWW TCP/IP Configuration 13
Default IP Address
When in a factory-default state (for example, when shipped from the factory
or after a cold-reset), the HP Jetdirect projector server has no IP address. A
default IP address may or may not be assigned depending on the network
environment.
Default IP Address Will Not Be Assigned
A default IP address will not be assigned if a server-based method (such as
BOOTP or DHCP) is successful. And if the server is powered off/on, the same
method will again be used to retrieve IP configuration settings. If this method
now fails to retrieve the IP configuration settings (for example, the BOOTP
or DHCP server is no longer available), a default IP address will not be
assigned. Instead, the server will continue to send IP configuration requests
indefinitely. You must cold-reset the server to change this behavior.
In addition, a default IP address will not be assigned if a network cable is not
attached.
Default IP Address Will Be Assigned
A default IP address will be assigned if the factory-default methods fail, or if
the server has just been reconfigured by an administrator to use a server-based
method (such as BOOTP or DHCP) that fails.
If a default IP address is assigned, the address will depend on the network to
which the server is connected. The server senses broadcast packets on the
network to determine the appropriate default IP settings:
● On small private networks that adhere to automated, standards-based IP
address assignments, the server uses a link-local addressing technique to
assign a unique IP address. Link-local addressing is limited to a local IP
subnet (not routed) and may be referenced as Auto IP. The IP address
assigned will be in the range of 169.254.1.0 to 169.254.254.255
(commonly referenced as 169.254/16). However, it can be further
modified for your network using supported TCP/IP configuration tools if
necessary.
With link-local addresses, subnetting is not used. The subnet mask will
be 255.255.0.0, and cannot be changed.