1.She went through the typescript carefully to eliminate all errors from it.
她认真地检查了打稿, 从排除所有错误。
2.48. Reader: (1) An abridged term for "proofreader" who checks proofs for accuracy. (2) Device which can "read" from magnetic media or, in the case of OCR, from typescript.
3.You can see problems that aren't appear in a double-spaced Courier typescript. ( Yes, you could do this in the old days on galley proofs, but that was an expensive luxury for most writers).