NET 4000 Chapter Notes - Chapter 9.4.4: Init, Zypp, Internet Printing Protocol
Document Summary
Cups (common unix print system) is widely deployed. Nearly every current linux distribution uses cups by default to manage printing. The cups service is provided by the cupsd daemon. The cups scheduler is a specialized web server created by the cupsd daemon that handles internet printing protocol (ipp) print requests on ip port 631. The scheduler can process print requests that originate from the local computer system or from remote systems over the network. The scheduler also provides a web-based administration interface that is used to manage all of the components in the cups system. Cups filters convert print jobs from the default printer description language (pdl) into languages used and understood by specific printers. By default, linux creates print jobs using adobe"s postscript pdl. Cups filters convert print jobs into a pdl supported by the printer. A cups backend provides the interface between the scheduler and the printer hardware.
