Well, that's just about as incorrect a statement as possible.
23-31-210(6) specifically states;
"Concealable weapon" means a firearm having a length of less than twelve inches measured along its greatest dimension that must be carried in a manner that is hidden from public view in normal wear of clothing except when needed for self-defense, defense of others, and the protection of real or personal property.
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"Hidden from public view" means you can't see it, not that someone knows you you have it or that it prints. Printing in SC is absolutely okay, though perhaps not recommended.
"In normal wear of clothing" means it has to be out of sight as your clothes would normally br worn. If you reach up to take a box of the top shelf at Wal-Mart and your piece is exposed, that is not normal wear and is not illegal. If you walk over a sewer grate like Marilyn Monroe and your skirt blows up and exposes your CC gun on your garter belt, that is also not normal wear and is not unlawful.
P.S. You edited your post while I was typing mine which drastically changed its content. My statements still stand.