Patent ID: 7354233

Claim:
A bookbinding machine comprising: a prebinding apparatus which cuts edge portions of at least some of plural sheets of paper continuously supplied thereto, said prebinding apparatus comprising: a feeding section which feeds said supplied sheets of paper one by one; a cutting section which cuts edge portions of those sheets of paper which are on a feeding path for said sheets of paper formed by said feeding section; and a control section which sorts said supplied sheets of paper into cutting-needed sheets of paper whose edge portions should be cut and non-cutting-needed sheets of paper whose edge portions need not be cut, and controls said feeding section and said cutting section based on a result of that sorting in such a way as to cut said edge portions of said cutting-needed sheets of paper and not to cut said edge portions of said non-cutting-needed sheets of paper; and a bookbinding apparatus which is continuously supplied with said plural sheets of paper from said prebinding apparatus by said feeding section, stacks said plural sheets of paper by a predetermined number, and binds and folds said plural sheets of paper.