Adding Printer
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5. Accessing Ubuntu SettingsThen Open Ubuntu Settings:   Simply Hit Cmd/Win and Search for ‘Settings’. 
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6. Installing Epson L3100/L3110 PrinterAnd Add Epson L3100/L3110 on Ubuntu   Click the ‘Add Printer’ Button:   
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$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }