Summary: Have converted a few folks to Linux and run into this scanner model. There is absolutely NO support from Microtek and evidently, never has been and never will be. No matter its physical condition, it's junk to Linux because of lack of a simple driver.
Summary: Mikrotek is not helpful with problems. The scanning is good but it keeps loosing the connection to the scanner. No help to be had from Mikrotek. I had to repeatedly reconnect the cables and when I am in luck it decides it is connected. But a lot of the time it decides it is not connected. After two years I upgraded to Mac OS 10.8 and Microtek has discontinued drivers and won't support OS 10.7 or 10.8 so it won't work.
Summary: If you're a Mac user, don't buy this scanner if you want to be able to upgrade, or if you're already running Lion. Microtek has discontinued drivers and won't support Lion, so it won't work. In fact, if I were you I'd avoid them entirely. The scanner has been fine for me, which makes it all the more frustrating that I'll have to get rid of it simply because the manufacturer refuses to support their own product. They deserve to go out of business.
Summary: My Microtek i900 arrived on Feb 1. Six WEEKS later is was completely broken and I had to send it in to be replaced. Along the way, Microtek customer "service" was anything but helpful. In fact, they have ONE technical support person on staff--I know because I spoke to him several times. The scanner itself produced fine results. Even if it produced the best scans ever seen, I would avoid Microtek at all costs due to their awful product support and performance.
Summary: I purchased my Microtek i900 in August 2005. This week it decided not to turn on. I may have used to copy 250 pages or negatives in this period of time. I contacted the service department for Microtek who send you to an online repair service that will give you an email response in 48 hours. Turns out that the unit that I paid over $500 for is out of warranty and there is NO repair service for Microtek in the United States!
Summary: I'm a Mac user so software problems might be different then PC. I bought this scanner in 2006. I'll tell you what you will be in for now and a year and more from now. The firewire quit functioning on the first one I got so I sent it back under warranty. The firewire quit working about a week after the warranty expired on the second and I was told I could have the scanner replaced with a refurbished one for $250. Believe me the scanner isn't worth it.
Summary: I have a Microtek scanner and just downloaded the latest drivers. It turns out Microtek wants a program called Scan Finder to load at every start-up, and there is no way to disable this. The product works satisfactorily, but for my money, I will purchase something else. Something that doesn't create such a nuisance, and isn't so invasive.
Summary: One of my principal reasons for purchasing the i900 was to able to scan 8x10 negatives on a reasonably priced flatbed scanner. Its specifications were superior to others then on the market (the Epson 4990 had not yet been introduced when I bought). Unfortunately, the solenoid that reverses the mirror on the scanning light broke (after warranty, of course) and THERE IS NO SERVICE IN THE U.S.!!!
Summary: I almost bought the i900, but wound up buying the i800 instead. You can read my full review under the i800 page, but basically I've had a pretty terrible experience with this company. My scanner suddenly broke after a couple of months, and the only way to contact their tech support is to wait until they email you back which seems like it takes anywhere from three days to two weeks. My replacement scanner had very dirty glass on the inside surface.
Summary: I should have heeded the warning of another reviewer who tried to install this scanner on a Dell XPS with a dual core processor. After being up all night and installing and reinstalling the scanner software innumerable times, I gave up and returned the Microtek i900 to Amazon. Not only would the scanner not preview or scan anything, including documents, photos, transparencies or negatives (I tried them all), but it made such a thunking, jackhammer-like racket that my...