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printer with static ip address inaccessible from lan

The Samsung CLP-320 printer's static ip 192.168.1.139 was set about 10 years ago to work on a lan using 192.168.1.x addresses. Last week the lan's router failed and was replaced with a Netgear r6700 router using 192.168.2.x addresses. The printer is now inaccessible from the lan.

Cups Administration says the printer address can be set using its MAC address:

Configuring the IP Address Using DHCP

The DHCP protocol is the usual way of setting the IP address of a printer on a managed network. Using the standard dhcpd(8) program supplied with UNIX you simply need to add a line to the /etc/dhcpd.conf file:

host hostname {
  hardware ethernet mac-address;
  fixed-address ip-address;
}

Make sure that the hostname you use is also listed in the /etc/hosts file or is registered with your DNS server.

apt-cache search dhcpd finds udhcpd. My pc's system is Debian Stretch. There is a file /etc/dhcp/dhclient.conf but no file /etc/dhcpd.

Is it possible to access the printer and change  its address to one in 192.168.2.x or to reset it to use dhcp?

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