Network Printing

Connected clusters

• Mobile Printing
• Printing History
• Cloud Printing
• Print Servers

In the archive

• History
• Guides
• Troubleshooting

Pages in this cluster

• Linux Printing
• Printer Discovery
• Driverless Printing
• CUPS Architecture
• OpenPrinting
• macOS Printing
• Print Queue Lifecycle
• Early Network Printing Systems
• How Printer Drivers Work
• How Wireless Printing Works
• Universal Print Drivers
• Print Rendering Pipeline
• Cloud Print Architectures
• Printer Shows Offline: A Methodical Guide
• Office Printing in the 1990s
• Early Computer Printing
• The Evolution of Office Printing
• Printing in the 1990s
• AirPrint Not Working
• Printer Shows Offline on Windows 11
• Daisy Wheel Printing
• Line Printing
• Impact Printing
• Enterprise Print Servers

Planned coverage

• What Is IPP (Internet Printing Protocol)? — The IETF/PWG protocol that carries print jobs and status over HTTP, and why it became the modern default.
• How TCP/IP Printing Works — How a print job travels over an IP network from computer to printer, and the role of ports and addresses.
• What Is Raw Port 9100 (JetDirect) Printing? — The socket/AppSocket method that sends data directly to a printer's TCP port 9100 with no protocol negotiation.
• What Is LPD/LPR Printing? — The classic Line Printer Daemon protocol, how the LPR client and LPD service interact, and where it still appears.
• Printing Over SMB (Windows Shared Printers) — How SMB/CIFS exposes a printer shared from one computer to others on the same network.
• How CUPS Works on Linux and macOS — The Common UNIX Printing System's architecture, its IPP foundation, and how it manages queues and back ends.
• What Is Bonjour Printer Discovery? — How zero-configuration networking advertises printers on a local network so devices find them automatically.
• What Are mDNS and DNS-SD? — The multicast DNS and service-discovery standards underneath Bonjour and automatic printer detection.
• What Is WSD (Web Services for Devices) Printing? — Microsoft's device web-services discovery and printing mechanism and how it differs from raw IP or IPP.
• What Is IPPS (Secure IPP over TLS)? — How IPP is encrypted with TLS to protect print jobs and credentials in transit.
• What Is SNMP Printer Monitoring? — How the Simple Network Management Protocol reports printer status, supplies, and errors to management tools.
• Static IP vs DHCP for Network Printers — Why a printer's address can change under DHCP and when a reserved or static IP is preferable.
• What Is a Printer Port? — The concept of a print port (USB, TCP/IP, WSD, LPR) and how the operating system maps a queue to a connection.
• Shared Printer vs Network Printer — The distinction between a printer shared from a host computer and one that connects to the network on its own.
• How to Find a Printer's IP Address — General, vendor-neutral methods to locate a network printer's IP via its panel, config page, or router.
• History of Network Printing Protocols — The path from serial and parallel connections to LPD, raw sockets, and IPP over TCP/IP networks.
• From LPD to IPP: How Network Printing Evolved — Why the industry moved from the older Line Printer Daemon model toward the richer, HTTP-based IPP.
• The History of JetDirect and External Print Servers — How dedicated print-server hardware put printers directly on Ethernet networks and popularized port 9100.
• Network Printer Not Found by IP Address — Vendor-neutral causes when a printer at a known IP is unreachable: address changes, subnet, firewall, discovery.
• Why a Printer's IP Address Keeps Changing — How DHCP lease renewal changes a printer's address and general ways to make it stable.