Normally the Printer would have a static IP. This would be especially true if the network is not using something like active directory. Set the printer up with a static IP and configure your DHCP Server to provide IP addresses in a pool outside of the static IP range.
DHCP Pool 192.168.0.5 to 192.168.0.20 for example.
This leaves addresses free to assign more static IP's later. Resources like printers and servers require static IP addresses so the wider network can be configured with consistency.