Method for transferring a sheet between two conveyors

摘要

A method for transferring a sheet in a sheet transport assembly from a supplying conveyor to a receiving conveyor. The method includes arranging a contact side of a sheet in contact with a transport belt of the supplying conveyor, advancing the sheet on the transport belt in a transport direction along a process unit, which applies a process to a process side of the sheet opposite to the contact side, and to a transfer area where the sheet is transferred to a receiving conveyor. To correct for curl deformation of the sheet, air flow is directed onto the process side of sheet, which urges the sheet towards a supporting element. The air flow is controlled in response to a curl deformation behavior of the sheet.

主权项

1. A method for transferring a sheet in a sheet transport assembly from a supplying conveyor to a receiving conveyor, the method comprising the steps of:
a) arranging a contact side of a sheet in contact with a transport belt of the supplying conveyor; b) advancing the sheet on the transport belt of the supplying conveyor in a transport direction along a process unit, which is arranged for applying a process to a process side of the sheet, the process side being opposite to the contact side, to a transfer area where the sheet is transferred to a transport belt of the receiving conveyor, the transfer area comprising a supporting element for supporting the sheet during transport in the transfer area; c) acquiring a media characteristic of the sheet, said media characteristic defining a curl deformation behavior of the sheet; and d) controlling a sheet blowing unit in the transfer area to direct an air flow onto the process side of sheet for urging the sheet towards the transport belt of the supplying conveyor, thereby correcting a curl deformation of the sheet, the air flow being controlled in response to the media characteristic of the sheet.