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

How to Install Printer Canon I-SENSYS on Debian Gnu/Linux Distro

GNU/Linux Debian Canon i-SENSYS Printer Setup – Step by step Guide

How to Install Canon i-SENSYS Printer on Debian GNU/Linux desktops – Step by step Tutorials.

Especially relevant: for the Canon i-SENSYS Debian Setup is recommended when available the default CQue Driver.

Elsewhere choose the UFRII Driver that is the 2nd version of UFR (Ultra Fast Render) functionally similar to Postscript and PCL.

But for some LBP Printer you may need instead see the: CAPT Driver Setup on GNU/Linux desktops.

Finally, after the Driver Installation to achieve the Setup follow the included instructions to Add Printer!

How to Install Canon i-SENSYS Debian - Featured

Debian Printer Canon i-SENSYS Installation Guides