This...ended up sending them pix from my iPhone because my scanner was on the fritz.  Everything went through in a few days without issue.  The only problem I've run into with MtGox was when I had them send their free Yubikey...they then set my account to require its use before it had arrived, so I was unable to use the account for the week or so it took the Yubikey to get here (they sent it by EMS, but it was stuck in customs for a few days).