Im looking to set up a home business printer and I will admit my knowledge with these big business class units is negligible. Would a black & white printer/copier/scanner be more reliable than a color unit? How big of a difference is the maintenance and down time between the two? Also who make the most "reliable" machines? I will be buying a used machine anywhere from 4-10 years old. What do I need to look for when purchasing? Ive seen everything from the xerox 3535, xerox C2128, kyocera 3035 to the Ricoh 3260c all in my price range... I will be buying third party so any maint. and issues with said printer will have to be sorted out and fixed by myself. Are there any units out there you would consider "old faithful" as in just a good built reliable setup? reliability is my main concern, cost of toner and maintenance is second, and image quality is last.