Epson EPL-N2000 Network Administrator's Manual page 11

A print spooler is an application that places print jobs or requests
in a queue.
TCP/IP (Transmission Control Protocol/Internet Protocol) is a
suite of protocols that performs a subset of overall networking
communication tasks.
ftp is a UNIX command for file transfer on a TCP/IP network.
lpr is a UNIX command for remote printing on a TCP/IP
network.
Resetting the EPL-N2000 causes it to initialize. You can reset the
printer in the following ways:
Switching the printer off and back on again
Pressing the reset key combination (Alt–Continue) on
the printer's control panel
A zone is a group of users, computers, and devices on an
AppleTalk network. Zones can be grouped according to physical
location, work groups, or departments.
Introduction 5