They do have a fingerprinting FAQ
Fingerprinting FAQ
Can I use any live scan location?
No. Not all live scan locations are configured to securely transmit fingerprint information to My FBI Report. Only Preferred Live Scan Locations listed on this website can transmit your fingerprints to us.
Where can I get an FD-258 fingerprinting card?
You may download an FD-258 (PDF) from our website and print it on standard paper. Card stock is not required. A4 paper may be used by international users.
Can I fingerprint myself?
No. Fingerprints must be taken by a trained technician. You may consider having two different sets of prints ink-rolled, if the images are questionable.
How many fingerprint cards do I need to mail?
You are required to mail 1 fingerprint card. However, it is helpful to send multiple sets of prints (not just copies of the same fingerprint capture). We choose the best fingerprint capture and submit those prints to the FBI.
What happens if my fingerprint images are rejected?
When having fingerprints ink-rolled, be sure to have a complete set of fingerprints taken by a trained technician. If your fingerprints are rejected, you have the option to submit additional sets of fingerprints and incur additional charges each time.
Please review the fingerprinting instructions (PDF), which illustrates fingerprints that are considered acceptable.
http://myfbireport.com/locations/index.php