Simple and easy to use
This is a very light, easy-to-carry and easy-to-use scanner. You plug directly on the USB port (2.0) for power, to avoid carrying a lot of plugs and wires. The user interface is very simple, and even non-technical persons will be able to use it without problems.
The manual says that it doesn't work on Windows 2003, but I was able to install and use it without problems.
The only problem I found is that I was not able to OCR documents. There is this option, but the provided software does not perform OCR on the scanned documents.
Maybe some additional software is missing... but I have not read the manual or done extensive research on this matter.
Overall, a very good option if you need to quickly scan documents.

Pentax Scanner Review
This is an excellent product for the price. Works well and is very compact!

good product; cheesy packaging and support
On first use it does a good job of scanning business documents and photographs. However, when you ask it to OCR an English document it complains because you don't have Japanese/Far East language support. If you email the email address ontheir web site the email bounces, no such domain. The device was supposed to come with a sheet protector for full size pages and does not.

Pentax Scanner
Love it. It works great. Easy to use. Is helping create a paperless office.

Disappointed
After reading all the reviews on this product, I decided to order one. It was delivered today. Setup worked fine, but the scanner would not work. It would not even feed the calibration sheet. I called Pentax customer support, and he could hear the noise the scanner was making. He immediately said the feed rollers are hung up. I asked him if this was a common problem, and he said it does happen. I thought it was odd that they were hung up before I even used it. However, he said they would ship out a replacement right away. I'm not sure I even want it now, but decided to give it a try. Hopefully, this is an unusual case.