Whilst casinos will reject documents for being "fuzzy", they are hardly EVER able to advise players what they SHOULD do different in order to get a better result.
Often, all you get is "please send them again". This will (if taken literally) make no difference whatsoever.
I have been using a 2.1 Megapixel digital camera for my documents for years now, ever since my scanner and computer had a big falling out, refusing to "speak" with each other, even though I have verified that my scanner is NOT broken, and neither is my PC.
Despite this, these digicam documents always seem OK for casinos. I use a special close-up mode, which does not use a flash, and place the document in bright natural daylight, but NOT direct sunlight. Scanned documents should be even BETTER, yet many complaints are from players who scanned to JPEG, and sent by email. I do NOT believe there is anything "unclear" about these documents, but rather that the problem lies with the CASINO, and it's use of incompatable equipment to view, print, verify, etc the image.
I have noticed that if I view a document on my old PC, it can be very dark, and quite possibly qualify as "unclear"; HOWEVER, this has NOTHING to do with the quality of the file itself, but is down to the fact that my PC is 11 years old, Windows 98, and has a monitor on it's last legs.
View the same "unclear" file on my newer PC, Windows XP & 22" LCD monitor, and there is NOTHING "unclear" about it whatsoever.
The obvious test for players should be to view the file on their monitor before they send it, and ensure that everything on it can be read, and the imagery is in focus, and not "fuzzy". If THEY can see a clear image, yet the casino cannot, it is NOT the file, but the equipment at the other end used by the casino.
I would like to know WHY the casinos are still in the "stone age" when it comes to verifying players, and relying on such outdated systems as FAXES, and then pretending to be surprised when the results are "unclear", what IS clear in such cases is that the staff involved do not understand the technology they are using, and are expecting far too much from it.
Even email, and sending files is "bronze age", the next step, already considered outdated elsewhere, but as "future development" by the casino industry, is direct & secure upload of the documents via a secure client application, usually a secure server, but which could easily be incorporated into downloaded casino clients.
Microgaming Viper clients have had something suitable FOR YEARS (casino mail), so WHY isn't it used to send documents, as well as emailing support?
Next century, the industry might catch up will current technology, used my other internet based merchants, which consists with electronic checks at point of sale. This should be available for the developed world, and properly regulated processors. Only a few deposit options would not be sufficienty covered, such as the cloaked services used in the US market, and "untraceable" methods, such as UKash, used elsewhere.