Linux Printing Chapter 14

Linux Printing Configuring a local printer Configuring a remote printer Traditional UNIX printing CUPS web Interface CUPS on the command line Integration with Windows

Printing with CUPS The role of printing –Receive print job from application –Get it to the appropriate queue –Format it for printing

LPR / CUPS / IPP LPR & LPD are the traditional Unix/Linux printing systems –Used the Line Printer Daemon for the server –Line Pinter Remote for the client end

LPR / CUPS / IPP CUPS –Common UNIX Printing System is a cross platform print server built around IPP IPP –Internet Printing Protocol (based on http)

LPR / CUPS / IPP CUPS –Contains numerous standard printer drivers –Cross platform – Linux, Windows, & Mac OS X –Supports LPD/LPR, http, SMB, and JetDirect protocols

IPP Project The IPP project began in 1996 when Novell and several other companies decided to design a protocol for printing over the Internet IPP is capable of determining: –the capabilities of a printer –Status of a printer –Status of a print job –As well as submitting and cancelling printjobs

Getting ready for CUPS The following packages need to be installed for CUPS printing: -CUPS -System-config-printer (optional) -Kdebase (provides optional kprinter)

Starting CUPS To start CUPS –/etc/rc.d/init.d/cups start To set CUPS to auto start in Multiuser mode –/sbin/chkconfig cups on

Configuring a local printer The fastest way to add a printer is to use the “system-config-printer” command This will bring up Printer Configuration

Adding a new printer queue

Queue name –The name needs to start with a letter and contains no spaces –Queue description is optional but a good idea Queue Type –By default this will be set to “Locally-connected” –LPT1 port will be displayed as /dev/lp0 –USB ports will be displayed as /dev/usb/lp0 They appear as Line printers inder the USB directory

Adding a new printer queue Printer Model –Standard printers can be chosen from a list of manufacturers and models –If a printer is not listed, check to see if there is a printer that can be emulated Finish

Configuring a Remote Printer CUPS allows you to connect to a printer over the network and manipulate the configuration or check its status. CUPS runs on port 631 –To connect to a host you will need to reference the port. –To connect to your local port you will need to use your browser to get to

Admin of a remote printer

Admin of a remote print server

LPR/LPD printing Command based printing uses the “lp” or “lpr” command. –“lp memo.txt” will send the memo.txt file to the default printer –To specify a printer use the “-d” command ‘lp –d colorlaser memo.txt”

LPR/LPD printing “lpstat” is used to display information about a printer’s queue Each print job is given a job number – you can use the “cancel” command to remove them from a queue –“cancel 15” This is also available through the browser

CUPS on the Command Line lpinfo –Displays the available drivers –Try combining this with a grep search to minimized the list – lpinfo | grep “Brother” Lpadmin –Add, modify or configure printers –Add: “lpadmin –p colourlaser –m hp4150c.ppd.gz Adds an HP 4150C printer called colourlaser

CUPS Files & Services /etc/cups/printers.conf –Printer information /usr/share/cups/model –Printer drivers /etc/cups/cupsd.conf –CUPS configuration /sbin/service cups –Cups daemon

KDE Print Manager Kprinter – GUI manager

Microsoft Integration Printing from Windows –Requires SAMBA (Chapter 23) –Printers are shared and Windows 2000 and later printers can print to the Linux printer via IPP Printing to Windows –Linux treats a Windows IPP printer as any other printer

Linux Printing Configuring a local printer Configuring a remote printer Traditional UNIX printing CUPS web Interface CUPS on the command line Integration with Windows

Today’s Task Install CUPS and get a printer installed Test your install by printing to file or getting your document to show up in the queue