proofer

plural proofers

1. A chamber used in baking that encourages fermentation of dough by yeast through warm temperatures and controlled humidity.
2. One who proofs.

   The proofer would check under “Third” in the T's and find the The Third Annual Pablo Casals Festival.

   1997, John Leverence, And the winner is--: using awards programs to promote your company, →ISBN, page 196

   1 more example

   There was a time when the half-tone photographer received considerable more in wages than did the proofer.

   1913, Louis Fader, “The Cost of Production and its Relation to Salesmanship and Profit”, in Process: the photomechanics of printed illustration, volume 20, number 237, page 238

3. A printer used to make proofing copies that look like how it will come out of the press.

   In graphic arts industry, in order to utilize color effectively, often a proofer is employed to simulate the reproductions of a press that is used to produce high-quality printed matters for clients.

   2003, Mei-Chun Lo, Yui-Liang Chen, Pei-Li Sun, Ya-Hui Chiang., “The Color Rendering Between a Color Proofer and Printing Press”, in Proceedings AIC 2003 Bangkok: Color Communication and Management, →ISBN, page 181