Summary: My friend has a 4670 and loved it. So I checked it out and the reviews were not all favorable. A lot of mention of alternating band of dark and light on color scans. I have not noticed this at all. Of course most the negative comments were early after release of product which maybe were corrected by the time I obtained mine. It scans very fast and the fact you can scan large format items was the deciding factor as I scan maps frequently.
Summary: I've owned the HP 4670 for nearly 3 years and have very few complaints. I don't understand the bad reviews about banding. I've never had anything like that. I work on a iMac G5, do lots of photo work. Only fault I can find is that when the scanner is in the vertical position and I try to set 2 or 3 photos to scan, they tend to slide sideways when I shut the cover. I do find this annoying. Also, it's rather slow to warm up to the first scan.
Summary: I was completely satisfied with this scanner. The only problem I had was a software glitch when I upgraded to Explorer 7.0, but that has since been fixed. Unfortunately, as with most peripheral equipment made for previous operating systems, it does not work with Vista. There is a driver, but it only works with Windows Photo Gallery, which is bundled with the Vista OS and has very few features.
Summary: Like many reviewers here I had a dead one of these things. HP replaced it without a quibble though and the replacement has been just excellent. I do like the machine itself, though I have to say that the HP bloatware scanner software is really very unpleasant. I just use the basic WIA driver, which does everything I need. For scanning large documents, which is what I do a lot, there is nothing better.
Summary: Pretty good for the money. If you are really picky about quality you should get a more professional model - this is economy grade. The versatility of this scanner is awesome since it can be taken off the base and used to scan large items. I also like that it takes up minimal desk space when stored on its base. That was the main selling point for me.
Summary: I'm a network administrator (among other things!!) and my boss decided to buy this scanner for my department. I do a LOT of scanning and I don't have any complaints about this scanner. We've had it for about a year without any problems. It's true it takes a while doing the first scan, because it has to "warm up the lamp", but after that it's very fast.
Summary: Not a bad little scanner. I like its appearance, goes nicely with my iMac. The scan quality is very good and I have had no problems using the scanner (I had been concerned after reading some of the reviews). The scanner utility for quick scanning is very nice. The negatives are that it is not a very quick scanner, although it is better than my old Umax. The other drawback is that I went from a 14 inch bed to this 11 inch bed.
Summary: After looking through the other reviews of this product, it's very clear that there was a design flaw early in it's prodcution. However, I bought my unit from Amazon in Januray of 2005 and experienced none of the issues others have. So, maybe the problem has been fixed. I've found this scanner to be really good at almost everything. Perhaps I have been lucky, but I've had no problems with the software at all.