Abstract: Two-dimensional blocks of line-work image data are subjected to: fractal reordering; run length encoding of the pixel values of the fractal re-ordered data, index encoding of the run length encoded pixel values; and entropy encoding of the index encoded pixel values and run lengths. This lossless, but in case of applying a quantisation step, lossy image data compression and decompression method is particularly suitable for handling image data in a printer environment, and more particularly for handling image data comprising line work data or both raster images and line work data.

Abstract: The invention relates to a method and apparatus for merging page elements according to a layout signal into one page for reproduction on a reproduction device. The page elements are segmented into smaller segments before storage into memory. Due to the particular format of the page elements, data required for the merging of page elements can be retrieved, decompressed an processed quickly so merging can be done in real time during printing. The format used for the segments enables easy and fast execution of various image operations such as mirroring, clipping, rotation, etc . . .

Abstract: The present invention relates to a dry toner composition suited for development of electrostatic charge images, magnetic patterns or DEP (Direct Electrostatic Printing). More specifically the present invention relates to a specific toner composition allowing fusing of the toner image to the final substrate at low temperature.

Abstract: The present invention relates to a liquid toner composition suited for development of electrostatic charge images, magnetic patterns or DEP (Direct Electrostatic Printing). More specifically the present invention relates to a specific liquid toner composition allowing transfusing of the toner image from a temporary carrier to the final substrate at low temperature.

Abstract: Various embodiments of a system and method for forming coated toner images on a web are disclosed. The coating unit can be employed off-line or in-line with a digital printing system. The coating is applied on already fused toner images and is subsequently cured by means of UV radiation. The resulting coated fused toner images have a reduced sensitivity towards mechanical interaction, e.g., rubbing, and towards water, solvents and sunlight. In addition, they yield a smooth surface with an even tunable gloss, independent of the amount of superimposed toner layers.

Abstract: A fixing device and method for transfusing toner on a receptor material is disclosed. Particularly, the fixing device comprises a heated transfuse member having an outermost layer of a material selected from the group of polyorganosiloxanes, fluorosilicones, fluoro-elastomers, phenylsilicones, and mixtures or hybrid compositions thereof. In operation, this outermost layer releases an amount of release agent corresponding to an amount of release agent of 0.05 mg per printed side of A4 paper or below, measured on NopaColor 100 gsm paper at an operating temperature for the transfuse member of 120 degrees Centigrade. Preferably, this outermost layer has a peel force, being measured according to Finat No. 3, with tape TESA 4163 at a peeling speed of 30 cm/min, above 7 N/m.

Abstract: The printer comprises image-forming stations at which developed toner images are formed and electrostatically transferred in register to an endless primary belt. A heat transfer minimizing nip contact is formed between the primary belt and an intermediate belt. The intermediate belt is heated downstream of the nip to heat the image thereon and to transfer the image from the intermediate belt to a substrate.

Abstract: The present invention is related to slipless drive image reproduction systems, such as printers and copiers, having one or more intermediate transfer members between the image-forming member and the receptor material. In operation, images are formed on the image-forming member and transferred via the intermediate transfer member to a face of the receptor material. These subsequent transfers are executed in transfer contact zones where the respective image-carrying members contact each other. The respective image-carrying members are coupled and driven such that the losses created in the transfer contact zones are balanced over the respective drive device.

Abstract: A cleaning device, being part of a copying or printing system, for removing residual developer from the surface of an image-delivering member is described. The device includes a cleaning brush in rolling contact with the surface of the image-delivering member for removing residual developer therefrom. A biased collecting roller is in rolling contact with the revolving brush. The collecting roller is biased such as to attract the residual developer from the cleaning brush and to collect it onto its surface. A trailing cleaning blade has a forward end portion in frictional contact with the collecting roller. The trailing cleaning blade is in contact with the cleaning roller at a contact position where the collecting roller is moving in an upward direction. Also disclosed is a method for removing developer from a surface of an image-delivering member.

Abstract: The image reproduction system includes a light exposure unit and a photosensitive member having an outer surface. The exposure unit includes a staggered plurality of linear LED arrays and a staggered plurality of discrete objectives associated therewith which focus the light generated by the LED arrays on the outer surface of the photosensitive member.

Abstract: Carrier particles having a coating comprising a polycondensation network containing a chemical compound selected from the group consisting of a monomeric polyfunctional organosilane, an hydrolysis product of a monomeric polyfunctional organosilane, a reaction product of a monomeric polyfunctional organosilane with an organosilane containing an hetero-atom and a reaction product of a monomeric polyfunctional organosilane with an alkoxide, characterized in that the coating further comprises between 5% and 50%, by weight, both limits included, of a polymeric compound not containing silicon atoms.