Abstract: In one example in accordance with the present disclosure, a system is described. The system includes an outsourcing engine to select a contracting print device to which a print job is to be outsourced. A recipe generating engine of the system generates a recipe for a print job. The recipe includes 1) settings for the print job and 2) settings for the contracting print device that is to generate the print job. The system also includes an encoder to encrypt the recipe and an exception processor to respond to requests from the contracting print device to deviate from the recipe.

Abstract: In one example in accordance with the present disclosure, a system is described. The system includes an outsourcing engine to select a contracting print device to which a print job is to be outsourced. A recipe generating engine of the system generates a recipe for a print job. The recipe includes 1) settings for the print job and 2) settings for the contracting print device that is to generate the print job. The system also includes an encoder to encrypt the recipe and an exception processor to respond to requests from the contracting print device to deviate from the recipe.

Abstract: Techniques are disclosed herein for a cloud computing system for backing up a device. The system includes a scheduling manager to schedule a back-up for the device to occur at a time based on a time zone in which the device is located and based on workday customs local to the device. The system also includes a data store for storing identification of the time zone and the workday customs.

Abstract: Systems and methods for cooperative rasterization of print data in an enterprise network are described. In one aspect, a primary printer rasterizes a portion of a print job to input raster bits into a raster buffer associated with the primary printer. During print job processing operations, the primary printer identifies a potential underflow condition of the raster buffer. Thus, the primary printer communicates an un-rasterized portion of the print job to a secondary printer for the secondary printer to rasterize—the primary printer not rasterizing the un-rasterized portion. Subsequently, the primary printer receives raster bits corresponding to the un-rasterized portion from the secondary printer. The primary printer prints all of the raster bits corresponding to the print job.

Abstract: Systems, apparatus, and methods for enhancing management of raster image processing (RIP) resources are described. In one aspect, a printing environment includes a RIP engine and multiple RIP pipelines. The RIP engine is scheduled to perform RIP for a first time period for a first pipeline of the multiple RIP pipelines. Responsive to occurrence of a start time of the first time period, the RIP engine is automatically transferred to the first pipeline for RIP.

Abstract: One embodiment of the invention is directed to a printer that is configured to interleave color plane data. The interleaved data is compressed, thereby forming compressed data having runs, seedrow copies and literals. In the compression process, commands are buffered to enable independent and simultaneous operation of a run module, a seedrow copy module and a literal module used in forming the compressed data.

Abstract: In a laser printer having a plurality of lasers, each of which effectuates the deposition of toner onto lines of a page to be printed, a method of printing several lines substantially simultaneously comprises storing within a single print data buffer, print data compressed using a predetermined compression methodology. The method also includes decompressing a predetermined segment of said compressed print data by one of a plurality of data de-compressors, each of which is operatively coupled to a laser that effectuates the deposition of toner onto a single line of a media.

Abstract: Digital printing technologies often rely on raster image processors (RIPs or RIP engines) to convert vector image data to raster, or bit-map, data, which allows a printer to render the image as a pattern of dots or pixels. One problem that the present inventors recognized with conventional RIPs is that they have limited communications capabilities that can in some circumstances reduce their effective processing speed. Accordingly, at least some embodiments of the present invention allow controlling a RIP engine using two or more different RIP control entities.

Abstract: Systems, apparatus, and methods for enhancing management of raster image processing (RIP) resources are described. In one aspect, a printing environment includes a RIP engine and multiple RIP pipelines. The RIP engine is scheduled to perform RIP for a first time period for a first pipeline of the multiple RIP pipelines. Responsive to occurrence of a start time of the first time period, the RIP engine is automatically transferred to the first pipeline for RIP.

Abstract: To reduce the memory requirements of a printer, it is desirable to compress rendered data of a to-be-printed page. Specific types of data of a to-be-printed page are best compressed using either lossless or lossy data-compression engines. “Text,” “graphics,” and “halftone” images are typically best compressed using a lossless engine. “Natural” images (such as photographs) are typically best compressed using a lossy engine. To select the best compression engine, the fast page analyzer divides the page into multiple horizontal strips of multiple horizontal lines. The fast page analyzer concurrently compresses and analyzes each strip. The analysis of one strip determines which compression engine is used to compress the next strip. In effect, each strip predicts the proper engine to compress the next strip. When printing a page that has been compressed in that manner, the printer will decompress each strip using its associated decompressor.

Abstract: In a laser printer having a plurality of lasers, each of which effectuates the deposition of toner onto lines of a page to be printed, a method of printing several lines substantially simultaneously comprises storing within a single print data buffer, print data compressed using a predetermined compression methodology. The method also includes decompressing a predetermined segment of said compressed print data by one of a plurality of data de-compressors, each of which is operatively coupled to a laser that effectuates the deposition of toner onto a single line of a media.

Abstract: An apparatus includes a memory to store compressed color data and decompressed color data. In addition, the apparatus includes a decompressor arranged to receive the compressed color data from the memory and configured to generate the decompressed color data and store the decompressed color data in the memory. Furthermore, the apparatus includes a color space converter arranged to receive the decompressed color data from the memory and configured to perform a color space conversion on the decompressed color data to form converted color space data. Additionally, the apparatus includes a halftoning device arranged to receive the converted color space data and configured to perform a halftoning operation to generate halftone data. A method includes storing compressed color data in a memory and loading the compressed color data into a decompressor from the memory.

Abstract: A method for halftoning an image to be rendered onto a media sheet includes the steps of: classifying data portions of a received data stream into one of plural image types, each image type to be subjected to a particular halftone procedure; assigning to each data portion of a common image type, a common identifier and then converting the data portions into a raster representation; subjecting segments of the raster representation to individualized halftone procedures, each segment of the raster representation that is assigned a common identifier being subjected to an identical halftone procedure; and rendering the raster representation onto a media sheet, subsequent to the halftone process. The apparatus for performing the halftone method places the halftone operation subsequent to the rasterization operation and thereby avoids anomalies which occurred in the prior art.

Abstract: A pixel processor, for use in conjunction with a color video monitor or an all points addressable color print engine, includes brush logic, mask logic, clip logic, and a multi-pixel logic unit to produce a page map consisting of millions of pixels, each having a color value. To portray a 2D-rasterization of overlapping objects with portions of objects being transparent, and objects shaded with colored pattern, the processor combines source S, brush T, pattern mask, source mask, and prior destination D data. Brush logic combines an RGB color setting with a pattern to provide the brush data, tiled within a source region. Mask logic ensures transparency of portions of the pattern or source as defined by pattern mask data and source mask data, respectively. Clip logic limits pixel updates in regions of the page map not within the source region.

Abstract: A print data processing pipeline for use in a color electrophotographic printer optimizes print quality and minimizes memory usage by separately processing lossy and lossless print data. Lossy print data may include print data for images and lossless print data may include print data for text, line art, and graphics. Partitioning print data into lossy and lossless components allows application of the print data compression operations optimized for each type of print data. High compression ratios can be achieved on lossy print data by applying visually lossless compression operations designed for the lossy print data. In addition, high compression ratios can be achieved on the lossless print data by applying lossless compression operations designed for the lossless print data. A merge unit combines the lossy and lossless print data streams after decompression to reconstruct the original image.