proofer

Noun

 * 1) A chamber used in baking that encourages fermentation of dough by yeast through warm temperatures and controlled humidity.
 * 2) One who proofs.
 * 3) A printer used to make proofing copies that look like how it will come out of the press.
 * 1) A printer used to make proofing copies that look like how it will come out of the press.
 * 1) A printer used to make proofing copies that look like how it will come out of the press.