= cups =
Common Unix Printing System
 * http://localhost:631/
 * http://localhost:631/admin
 * HP ENVY Photo 7800 All-in-One Printer series
  * Description:	HP ENVY Photo 7800 series
  * Driver:	ENVY Photo 7800 series - IPP Everywhere (color, 2-sided printing)

https://192.168.0.104/#hId-pgDevServ
 * Clean Smear Remove buildup in the printer that can cause smearing on printed pages. 
 * Clean Printhead Activate printhead cleaning and print progress report.
  * Level 2 cleaning 

HP 303 ink cartridge

== Slackware 14.2 configuration ==
{{{#!highlight sh
activate /etc/rc.d/rc.cups
chmod 755 /etc/rc.d/rc.cups
/etc/rc.d/rc.cups start
# http://localhost:631
# Admin
# add printer
# socket://192.168.1.2:9100
# HP Officejet Pro X451-X551 Postscript
# Media size a4 two sided off maintenance print test page 
}}}