Device for guiding sheets from a sheet feeder to lay marks comprises a suction box facing the lay marks and arranged within a distance extending from the lay marks opposite the sheet transporting direction

摘要

Device for guiding sheets from a sheet feeder to lay marks (10) comprises a suction box (9) facing the lay marks and arranged within a distance extending from the lay marks opposite the sheet transporting direction (14). The suction box has regions with a holding force uniformly distributed over the width of the box. The regions are activated and deactivated independently of each other within a working stroke. Preferred Features: The regions of the suction box are activated during transport of a sheet to lay marks and parts of the regions are deactivated before placing a front edge of the sheet.