Abstract: An ink printing device has a dryer chamber that is connected via two openings with the internal space of the printer. To detect whether operational exhaust air flows, as leakage air, from the drying chamber into the internal space, the temperature in the opening region may be measured and compared with a reference value. Given a temperature difference above a threshold value, an error signal is generated and/or corresponding countermeasures are taken in order to reduce the leakage.

Abstract: Provided is a device for cleaning exhaust air from a printing device by means of a heat exchanger. The device is configured to operate the heat exchanger in a standard phase such that an output temperature of the exhaust air exhibits a standard value such that hydrocarbons are condensed out of the exhaust air. The device is also configured to operate the heat exchanger in a regeneration phase such that the output temperature of the exhaust air exhibits a value. The value is reduced relative to the standard value, such that water is condensed out of the exhaust air.

Abstract: An ink printing device has a dryer chamber that is connected via two openings with the internal space of the printer. To detect whether operational exhaust air flows, as leakage air, from the drying chamber into the internal space, the temperature in the opening region may be measured and compared with a reference value. Given a temperature difference above a threshold value, an error signal is generated and/or corresponding countermeasures are taken in order to reduce the leakage.

Abstract: A method and a controller operable to adjust the field strength of an electrical field for the toner transfer in an electrographic printing process. Current values of framework parameters can be determined and a control loop configured to adjust the electrical field is adapted based on current values of the framework parameters. An electrical reference variable of the control loop can be adapted to the current values of the framework parameters. The electrical reference variable can include, for example, a current and/or a voltage for the toner transfer.

Abstract: A printing arrangement and a printing method for two-sided printing on a recording medium are disclosed, in which conditioning by steam and/or liquid droplets takes place after printing on the first side of the recording medium. Because of the conditioning, damage is avoided to the print image of the first side during subsequent printing on the second side, without the recording medium being impaired by the conditioning.

Abstract: A printing arrangement and printing method are disclosed for two-sided printing on a recording medium, in which intermediate fixing by superheated steam takes place after printing on the first side of the recording medium. Owing to the intermediate fixing, damage to the print image of the first side during subsequent printing on the second side is avoided without the recording medium being impaired by the intermediate fixing.

Abstract: In a device or method to fix print images on a recording material, a printing fluid comprising a carrier fluid and chromophoric solid particles are applied to the recording material, the chromophoric solid particles being applied in a form of the print images to be fixed. Hot waste gas and infrared radiation are generated with aid of a porous burner. The infrared radiation is directed towards the recording material in a drying chamber such that the carrier fluid polymerizes or is vaporized, whereby a gaseous air/oil mixture arises in the drying chamber. The air/oil mixture is influenced with aid of the hot waste gas of the porous burner.

Abstract: A printing arrangement and a printing method for two-sided printing on a recording medium are disclosed, in which conditioning by steam and/or liquid droplets takes place after printing on the first side of the recording medium. Because of the conditioning, damage is avoided to the print image of the first side during subsequent printing on the second side, without the recording medium being impaired by the conditioning.

Abstract: A printing arrangement and printing method are disclosed for two-sided printing on a recording medium, in which intermediate fixing by superheated steam takes place after printing on the first side of the recording medium. Owing to the intermediate fixing, damage to the print image of the first side during subsequent printing on the second side is avoided without the recording medium being impaired by the intermediate fixing.

Abstract: In a device or method to fix print images on a recording material, a printing fluid comprising a carrier fluid and chromophoric solid particles are applied to the recording material, the chromophoric solid particles being applied in a form of the print images to be fixed. Hot waste gas and infrared radiation are generated with aid of a porous burner. The infrared radiation is directed towards the recording material in a drying chamber such that the carrier fluid polymerizes or is vaporized, whereby a gaseous air/oil mixture arises in the drying chamber. The air/oil mixture is influenced with aid of the hot waste gas of the porous burner.