I tried to download the 310 Manual to SBO but it was way to big. Even breaking it down to smaller parts would prompt an error message. Since I also couldn't send it on request because my emal server limits the size of attachments, i set out to figure out a way to pass it on. I found the yousendit website and was able to send out what I needed. It provided a link to the document which is valid until May 11, 2011. Here is the link if anyoone would like an electronic copy of the owner's manual (it's for a 2000-HN0045 but I'm sure a lot of the info is applicable to later models).
http://www.yousendit.com/download/MEtUV284R3NwM2swTVE9PQ
http://www.yousendit.com/download/MEtUV284R3NwM2swTVE9PQ