Method and system for reducing the undulation of a recording medium

#This patent application claims priority to German Patent Application No. 102018121758.7, filed Sep. 6, 2018, which is incorporated herein by reference in its entirety.

#The disclosure relates to methods with which the undulation of a recording medium printed to in an inkjet printer may be reduced, and if possibly may be avoided entirely.

#Inkjet printing devices may be used for printing to recording media (such as paper, for example). For this purpose, one or more nozzles are used in order to fire ink droplets onto the recording medium, and thus to generate a desired print image on the recording medium.

#The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate the embodiments of the present disclosure and, together with the description, further serve to explain the principles of the embodiments and to enable a person skilled in the pertinent art to make and use the embodiments.

#FIG. 1a illustrates a block diagram of an inkjet printer having a dryer according to an exemplary embodiment of the present disclosure.

#FIG. 1b illustrates a block diagram of an example of a dryer for an inkjet printer according to an exemplary embodiment of the present disclosure.

#The exemplary embodiments of the present disclosure will be described with reference to the accompanying drawings. Elements, features and components that are identical, functionally identical and have the same effect are—insofar as is not stated otherwise—respectively provided with the same reference character.

#In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. However, it will be apparent to those skilled in the art that the embodiments, including structures, systems, and methods, may be practiced without these specific details. The description and representation herein are the common means used by those experienced or skilled in the art to most effectively convey the substance of their work to others skilled in the art. In other instances, well-known methods, procedures, components, and circuitry have not been described in detail to avoid unnecessarily obscuring embodiments of the disclosure.

#According to one aspect of the present disclosure, a method is described for reducing the undulation of a recording medium that has been printed to and dried by an inkjet printer. In an exemplary embodiment, the method includes the determination of boundary condition data, where the boundary condition data indicate a property of the recording medium, and/or of a print image that is printed onto the recording medium, or is to be printed onto the recording medium. In an exemplary embodiment, the method further includes the setting of at least one operating parameter of the printer for the printing operation, depending on the boundary condition data, in order to reduce the undulation, or with the goal of reducing the undulation, of the recording medium printed to and dried during the printing operation.