Abstract: A digital printing process for printing an image (I) including a white area (W) and/or a coloured area (C) on a packaging material includes selecting a packaging material with a substantially white side, and preparing print data to be sent to a printing means taking into account that the side of the packaging material is substantially white. The print data represents one or more first image areas (A1) representing the image (I), and one or more second image areas (A2) representing a packaging look (L), to be printed on the substantially white side of the packaging material, outside the one or more first image areas (A1) where the image (I) is to be located. The method further includes printing by the printing means on the substantially white side of the packaging material using the print data.

Abstract: A contact-less liquid application apparatus, and in particular a printing apparatus, for applying a liquid in a contact-less manner on a moving medium. The liquid application apparatus includes a liquid application means configured for applying a liquid on a moving medium, a media transport system configured for moving the medium in a movement direction at a distance of the liquid application means, and a flow control means configured to evacuate at least a portion of the air displaced by the moving of the medium, at least before the medium is in a liquid application position, where the liquid application position is a position in which the liquid application means is applying liquid on the medium.

Abstract: Image processing system for generating control signals for printing means, from source image data from an image source, comprising a raster image processing and layout module configured to convert said source image data into a first lane bitmap element and a second lane bitmap element; a streaming processor arranged to receive said first lane bitmap element and said second lane bitmap element, and position signals comprising position data for said first and/or said second lane image in the printed image; said streaming processor being configured to generate control signals for the printing means based on said first lane bitmap element, said second lane bitmap element, and said position signals in order to be able to adjust the position of said first lane image and/or the position of the second lane image in the printed image.

Abstract: A digital printing apparatus comprising a developing roller (102) and an image carrying roller (101); the developing roller (102) being arranged to transfer liquid toner (107) onto the image carrying roller (101) in accordance with a charge pattern; an upstream charger (111) upstream of an area (108) of rotational contact between the developing roller (102) and the image carrying roller (101); a downstream discharger (112, 122, 132) downstream of the area (108); a sensor (200) downstream of the area (108) to detect a property representative of the charge of a liquid toner residue; and a controller (210) to receive sensor data from the sensor (200) and to provide a control signal to control the downstream discharger.

Abstract: Image processing system for generating control signals for printing means, from source image data from an image source, comprising a raster image processing and layout module configured to convert said source image data into a first lane bitmap element and a second lane bitmap element; a streaming processor arranged to receive said first lane bitmap element and said second lane bitmap element, and position signals comprising position data for said first and/or said second lane image in the printed image; said streaming processor being configured to generate control signals for the printing means based on said first lane bitmap element, said second lane bitmap element, and said position signals in order to be able to adjust the position of said first lane image and/or the position of the second lane image in the printed image.

Abstract: A digital printing apparatus comprising a developing roller (102) and an image carrying roller (101); the developing roller (102) being arranged to transfer liquid toner (107) onto the image carrying roller (101) in accordance with a charge pattern; an upstream charger (111) upstream of an area (108) of rotational contact between the developing roller (102) and the image carrying roller (101); a downstream discharger (112, 122, 132) downstream of the area (108); a sensor (200) downstream of the area (108) to detect a property representative of the charge of a liquid toner residue; and a controller (210) to receive sensor data from the sensor (200) and to provide a control signal to control the downstream discharger.

Abstract: A digital printing apparatus using liquid toner comprising chargeable imaging particles and carrier liquid, comprising an imaging member (140) to sustain a pattern of electric charge forming a latent image on its surface, a development member (130) to receive toner (100) from a reservoir (110), and to develop the image by transferring toner onto the imaging member (140) in accordance with the pattern, leaving a remaining fraction of the toner on the development member (130), an electrical field generating means to compact the particles by applying a field before transfer onto the imaging member (140), means (150, 160) for depositing the toner onto a substrate (199), and means (133) for removing remaining toner from the development member (130), comprising an integrated source for generating an oscillating electric field, arranged to decompactify the chargeable imaging particles and mechanical removal means for removing the liquid toner.