also: いんさつぼんし
noun
actual printing stock; paper for final print run
Technical term in printing and publishing. Refers to the paper actually used for the final production run, as opposed to proofing or test stock.
校正刷りが終わったら、印刷本紙に刷ります。
After proofreading, we print on the actual printing stock.
このカタログの印刷本紙は上質紙を使っています。
The actual printing stock for this catalog uses high-quality paper.
Compound of 印刷 (printing) and 本紙 (main/actual paper). The reading ほんし for 本紙 is standard; the variant ぼんし is a rare rendaku-like voicing.