I am a newbie
I posted this question before & received answers, but after attempting to apply the fix (Unsuccessful), I cannot find my original post (or replies).
I recall the suggestion to download the Samsung CLP-315 driver F002qpdl.rkka.com/. when I attempted the download from Samsung, "it" defaulted to Unified Linux Driver _100.tar.gz. Is this correct?.
Here are the step by step actions I performed.
Applications> Accessories> Terminal.
This puts me at the $ (flashing cursor).
Where is the "root terminal"?
I found a note here to disregard the root & to use the sudo command.
I downloaded & unzipped the driver to "Desktop"
When I typed in $ sudo cdroot/autorun,(After password) I received the message "command not found".
Any assistance would be appreciated.
I am a newbie,so please be specific.

[Ubuntu OS Installation]

1. Download and extract the driver.

2. Open ''Root Terminal''

3. Execute installation program.
$ sudo cdroot/autorun

4. After install, PPD path is set again.
$ sudo ln -s /usr/share/cups/model/samsung /usr/share/ppd/custom/samsung

5. Execute Configurator, and Add your printer model name by Add Printer.