std ipp20 20151030 5100.12.pdf

1 1. Introduction 2 The IETF IPP/1.1 protocol specifications [RFC2910] [RFC2911] were published in 3 September 2000. Since the publication of IPP/1.1, dozens of IETF and PWG IPP 4 extension specifications have been approved and published and billions of IPP Clients 5 and Printers are in use. Section