Océ´ Printing Systems Gmbh & Co. Kg

Robert Heimbach

Mehrad Biglari

Robert Lang

In a method to operate an ink printing apparatus, and in an ink printing apparatus, a recording medium is directed through a printer. The recording medium is subsequently supplied to a dryer having at least one heating saddle and a drying channel arranged at the heating saddle. In the dryer the recording medium is directed past the heating saddle. A negative pressure is generated in the drying channel via an air exhaust arranged at one end of the drying channel. In the printing operation, in a region of the heating saddle a negative pressure is exerted on the recording medium in a direction of the heating saddle so that the heating saddle is then in contact with the recording medium in order to dry the ink on the recording medium. Upon interruption of the printing operation with braking of the recording medium, the negative pressure in the direction of the heating saddle is deactivated at a beginning of the braking.

Ink printing apparatus, and method to operate an ink printing apparatus

In a method or device to determine a lift state of a recording medium from a surface of a heating saddle of an inkjet printing system, the recording medium being directed past the surface for drying, an index for power consumption of the heating saddle is determined including a determination of a time curve of the electrical power consumed by the heating saddle. The power consumption of the heating saddle depends on a desired temperature of the heating saddle. The lift state of the recording medium is determined based on the index for the power consumption.

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Munich, Germany

Robert Heimbach