After purchasing a Samsung CLP-315, I decided to write an article explaining the difference between this and the CLP-310. Therefore, I visited Samsung.com and looked at the specifications for both.
After a thorough side-by-side comparison, I have come to a conclusion. They are both exactly the same. The only difference is the color, and that there is a CLP-310N and a CLP-315W version available.
Therefore, only 1 hardware driver is required to make both machines work. If one has the 310N, an ethernet cable, or the 315W, a wireless, version, then one may have to get the exact driver to get them working.
For those wondering why I decided to write this, I have several people visiting my site doing a search for difference between the CLP-315 and the CLP-310. Therefore, I decided to do them a favor.
For those that want to see for themselves, here are the links.
My comparison chart at http://aprivatebeach.com/blog/wp-content/uploads/2010/03/CLP-315-310-Comparison.pdf