Hello Jake,
Sorry for the delay. When I got your massage yesterday I go to work and then forget it.
To install new drivers is very simple.
First go to System Preferences.
Second choose Print & Scan and go the the printer preferences.
Then you see the keylock you have to unchange it, because you want to make changes. Type your password and your Username to make the changes. When this is finished you can see the button with the "+" to add a new printer or scanner. So click there and you get to the next screen.
A new menu will open where you can add a new printer. As you can see there is a printer SCX-4100, because the printer is powered on and pluged into my iMac so MAC OS X will recognize this. But we want to change the printer software because SCX-4100 is not working. So we select our printer SCX-4100 obove and in the drop down menu where you can see it in the screenshot we choose to select another driver software.
You can see this here on the other screenshot, what I have done. I have selected the SCX-4100 Multifunction printer in the print selecting menu and then choose "Select Printer Software" this will lead you to another menu where you can choose the right driver.
Another menu "Printer Software" opens and you can choose here the driver. There are all drivers for all kind of printers. You can type to find the right one. I typed SCX and find the right driver. I choose Samsung SCX-4200 Driver and click OK and then the driver will be installed.
Then when everything is finished in the next menu you have to click "ADD" and "CONTINUE" to install the driver.
And you have installed for SCX-4100 another driver such as the SCX-4200.
And thats it. Thats the whole magic to install another driver for your printer. When SCX-4200 is not working you can try another drivers. For me it works. Hope it works for you too. Hope this helped.
P.S. Sorry for my english. Tried to explained it well.