Add Printer Ubuntu 14.04 Trusty
The tutorial shows you step-by-step How to Add Printer Ubuntu 14.04 Trusty LTS GNU/Linux desktop – Step by step Tutorial.
And to Successfully Add Printer on Ubuntu 14.04 you have First, to Download and Install the Printer Driver.
So this Guide Includes Instructions on How to Download and Setup Printer Drivers on Ubuntu.

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Download and Install Ubuntu Printer Driver
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Then Connect and Power On the Printer!
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Next Open Ubuntu System Settings.
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Finally, Go to Printers >> Add Printer.
And if you Installed the Printer Driver then it should Successfully Installed!