$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install Canon PIXMA Printer on Gnu/Linux Distros

GNU/Linux Canon PIXMA Printer Setup – Step by step Guide

How to Install Canon PIXMA Printer/Scanner on GNU/Linux desktops – Step by step Tutorials.

And the Canon PIXMA Setup on Linux is Quick and Easy, it involves at most some basic Shell commands execution.

Especially relevant: after the Canon PIXMA Driver Linux Installation to achieve the Printer Setup follow the included instructions to Add Printer!

Finally, in case to know how you dispose of a valid Alternative to the Canon Proprietary Driver as the Gutenprint Driver Suite.

How to Install Canon PIXMA Printer Driver on GNU/Linux Distros

GNU/Linux Canon PIXMA Printer Driver Installation