Summary: i picked up one of these 7 or so years ago due to the awful performance and very high cost of a lexmark all in one ink jet. i don't use it a whole lot and it has worked fairly well for 7 years and samsung is generally a good brand.
Summary: Just plugged it into my laptop and it fired off perfect documents quietly and effortlessly. I already love this printer. I am so happy I purchased it. It was refurbished and looks new and was very nicely packed. Arrived promply.
Summary: This printer is like an old Ford Festiva. If you bought it thinking you were getting a Cadillac someone lied to you. It's pretty basic, it's dependable, it runs cheap. It is my workhorse printer. If I want high quality or color I have an inkjet that cost more than this printer did I can use.
Summary:  For those that said this printer jams a lot, they are exaggerating. I've found the best way to avoid this is to always use new paper and keep it full. Or you could do what I do - simply feed one page at a time (through the front slot) .
Summary: I bought this with an extra toner cartridge a year or two ago. I never really used it (I have another perfectly good laser printer), but my mother has been using it. Recently I switched laser printers with her and I noticed the left side of pages printed with the SCX-4100 fade terribly.
Summary: I've owned the Samsung SCX4100 Laser Multifunction printer for 5 years now. It prints, it copies, it scans. It does everything it's supposed to do. The drivers and software work fine in Windows XP. The print quality is mediocre at best.
Summary: I bought this almost 4 years ago and it is the BEST printer I have ever owned! Update: 11/04/2011 - This is still the best laser printer I've ever owned and I recommend it to everyone who is looking for a very easy to use all-in-one printer/scanner/copier.
Great price, now fully working on Mac (scan + print) - UPDATE - FAILS AT 2 YEARS!!!!
V. Patel, Amazon
19 January 2009
Summary: Mac printer drivers have been out on the web for a while, so that takes care of that issue. Scanning was a big challenge, but thanks to a clever guy on Mac Rumors, that issue is now solved as well. So, the SCX-4100 is now fully functional on a Mac!
Summary: Worst printer I have ever used. From the very first day it started to give me paper jams. The scanning unit is OK. The print quality is not bad either. But this paper jam thing will run you nuts.