Abstract: A jetting device comprising: a fluid chamber connected to a nozzle and containing a fluid to be jetted, and an electrically conductive medium; a magnetic field source arranged to create a magnetic field in the electrically conductive medium; a pair of electrodes contacting the electrically conductive medium; and a controller arranged to control a flow of an electric current through the electrodes and the electrically conductive medium, characterized in that the pair of electrodes is configured to constitute a sonode for generating an ultrasonic acoustic wave in the electrically conductive medium, and the controller is arranged to activate the sonode during a time at which the jetting device does not perform a jetting operation.

Abstract: A method for determining functioning of a print head cooler includes operating the print head cooler, the print head cooler including a first surface in thermal contact with a surface of a print head; providing a predetermined amount of heat to the print head; measuring the temperature of the print head; based on the measured temperature, determining the functioning of the print head cooler. The predetermined amount of heat is provided by applying at least one non-jetting pulse to a liquid present in the print head. An assembly of a print head and a print head cooler is also disclosed. The assembly includes a control that is configured to perform the method for determining functioning of a print head cooler.

Abstract: An inkjet marking module includes an inkjet marking device adapted to jet droplets of an inkjet marking material to form an image on recording substrate; and an evaporation device arranged for evaporating a solvent to a gaseous medium. The evaporation device includes an aerosol generator for creating an aerosol of the solvent in the gaseous medium; and a droplet eliminator for removing droplets from the aerosol, the droplet eliminator being arranged downstream of the aerosol generator. A printing system includes such an inkjet marking module and a method is disclosed for controlling the relative degree of saturation of a solvent vapor in a gaseous medium in an inkjet marking module.

Abstract: An inkjet marking module includes an inkjet marking device adapted to jet droplets of an inkjet marking material to form an image on recording substrate; and an evaporation device arranged for evaporating a solvent to a gaseous medium. The evaporation device includes an aerosol generator for creating an aerosol of the solvent in the gaseous medium; and a droplet eliminator for removing droplets from the aerosol, the droplet eliminator being arranged downstream of the aerosol generator. A printing system includes such an inkjet marking module and a method is disclosed for controlling the relative degree of saturation of a solvent vapor in a gaseous medium in an inkjet marking module.

Abstract: A heat exchange laminate for use as a heat exchange member in a heat exchange unit for a printing system including a base layer extending substantially planar, said base layer being bilaterally coated with an electrical conductive non-metallic contact layer.

Abstract: A heat exchange laminate for use as a heat exchange member in a heat exchange unit for a printing system including a base layer extending substantially planar, said base layer being bilaterally coated with an electrical conductive non-metallic contact layer.

Abstract: A device for positioning an original in sheet form on the exposure platen of a copying machine, comprising abutment strips which extend parallel to each other at opposite sides of the platen and which are displaceable to and from each other for adjusting them to the width of an original fed between the strips on to the exposure platen. In front of each strip and displaceable therewith is at least one pair of rollers disposed with their axis parallel to the strips. A first roller of each pair being closer to the exposure platen and the associated strip than the other roller of that pair. A flexible belt for pressing an original on to the platen is trained between the platen and the said first rollers of each pair and about said first rollers and in opposite direction over said other rollers and then over the strips towards the frame of the device.