| 摘要 |
A method and a device for further processing of sheets to produce multi-page printed products, several initial sheets ( 19 ) are each folded into a folded sheet ( 20 ) and subsequently collated one on top of the other such that the fold areas lie at the top and the folded sheets ( 20 ) open downwardly. A grooved line ( 30 ) is formed in each initial sheet ( 19 ) before folding, around which grooved line ( 30 ) the initial sheet ( 19 ) is subsequently folded, the depth and the width of the grooved line ( 30 ) being increased, initial sheet ( 19 ) by initial sheet ( 19 ), by a predetermined amount.
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