An ink wastage absorber is made from a flexible polyurethane foam having an air-permeability of 1. The method further includes determining if the file is controlled by DRM through the intermediate interface when a selected application module sends a file request to the file system to access the file, processing the file request using the DRM module to verify if the file is controlled by DRM, and returning a processed result to the selected application module. The method is characterized by calculating a target temperature to attain the predetermined actuating variable at a desired printing speed and initiating the adjustment operations to attain the target temperature by the control computer.