http://www.rfc-editor.org/rfc/rfc2567.txt
RFC 2567: Design Goals for an Internet Printing Protocol, F. Wright1999-04-01T23:00:00-00:00This document takes a broad look at distributed printing functionality, and it enumerates real-life scenarios that help to clarify the features that need to be included in a printing protocol for the Internet. It identifies requirements for three types of users: end users, operators, and administrators. This memo defines an Experimental Protocol for the Internet community.