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

How to Install CUPS Printer Drivers on Ubuntu 18.04 Bionic LTS

November 2, 2019 | By the+gnu+linux+evangelist.

Installing PPD File

  1. 2. Accessing Printers Admin Web UI

    Open on Browser the Address: localhost:631/admin.

  2. 3. Adding Printer

    Then Choose Add Printer.

    How to Install Epson PPD Driver on Ubuntu 18.04 - Adding Printer

    Then Follow the Wizard until you load the suited PPD Driver