Abstract: A color processing apparatus includes an image signal acquisition section, a color conversion matrix storage section, a matrix regularization processing section and a normal color conversion section. The image signal acquisition section acquires an image signal containing a predetermined input color signal. The color conversion matrix storage section stores information of a color conversion matrix which associates the input color signal and an output color signal with each other. The matrix regularization processing section reads the information of the color conversion matrix from the color conversion matrix storage section and converts the color conversion matrix into a nonsingular matrix. The normal color conversion section converts the input color signal acquired by the image signal acquisition section into an output color signal using the nonsingular matrix.

Abstract: Radiation curable phase change ink comprising an ink vehicle that includes at least one curable carrier, at least one gellant, at least one curable wax and at least one photoinitiator. In a method of forming an image with the ink, the radiation curable phase change ink is melted, then jetted onto an image receiving substrate, wherein the radiation curable phase change ink forms a gel state, and exposed to ultraviolet light to cure the curable components of the radiation curable phase change ink. The wax cures into the structure of the ink, thereby generating a robust image of excellent gloss.

Abstract: A production printing system for processing a plurality of print jobs may include a plurality of print job processing resources and a computer-readable storage medium including one or more programming instructions for performing a method of processing a plurality of print jobs in a document production environment. The method may include identifying a print job size distribution for a plurality of print jobs in a document production environment and determining whether the print job size distribution exhibits a heavy-tail characteristic. For each print job size distribution that exhibits a heavy-tail characteristic, the plurality of print jobs may be grouped into a plurality of subgroups such that at least one of the plurality of subgroups exhibits a non-heavy-tail characteristic, and each job in the at least one of the plurality of subgroups exhibiting the non-heavy-tail characteristic may be processed by one or more print job processing resources.

Abstract: A liquid droplet ejection head comprises an ejector, a liquid viscosity-increase prevention structure and a liquid viscosity-increase prevention controller. The ejector includes a nozzle for ejecting a liquid droplet, a pressure chamber communicating with the nozzle through a communication path, and an actuator for applying pressure to a liquid in the pressure chamber. The liquid viscosity-increase prevention structure prevents an increase of viscosity of the liquid in the ejector. The liquid viscosity-increase prevention controller changes the operation frequency of the liquid viscosity-increase prevention structure between when the liquid droplet is ejected from the nozzle and when ejection of the liquid droplet is paused and no liquid droplet is being ejected from the nozzle.

Abstract: A method receives, at a processor of a printing apparatus, a variable information print job. The variable information print job is processed into upper planes of the record-specific objects, upper planes of the reusable objects, lower planes of the record-specific objects, and lower planes of the reusable objects. The method stores such objects within a storage medium of the printing apparatus. The method combines ones of the compressed upper planes of the record-specific objects and the compressed upper planes of the reusable objects corresponding to the record of the variable information print job using the processor to create a single compressed upper plane for the record within an output buffer of the printing apparatus and creates an ordered list (corresponding to the record) of lower plane tiles by assembling the compressed lower planes of the record-specific objects and the compressed lower plane reusable objects.

Abstract: An image processing system includes: a receiving section that receives print information including at least a first printing control command embedded in a print document and a second printing control command relating to a setting condition for the first printing control command; a control command extracting section that extracts the first printing control command and the second printing control command from the print information; and a print executing section that performs the first printing control command according to the setting condition of the second printing control command.

Abstract: Apparatuses useful for printing and methods of cleaning debris from a surface in an apparatus useful for printing are provided. An exemplary embodiment of an apparatus useful for printing includes a first roll, a belt including an inner surface and an outer surface, the first roll and the outer surface of the belt forming a nip, a stripping member located between the inner surface of the belt and the first roll for facilitating stripping of media from the outer surface of the belt after the media is fed through the nip with the belt moving in a first direction, wherein debris builds up on the inner surface of the belt adjacent to the stripping member during stripping of the media, and a cleaning device for cleaning the debris from the inner surface of the belt upon movement of the belt in a second direction opposite to the first direction.

Abstract: When a replaceable unit is mounted, a CPU of an image forming apparatus recognizes whether or not a corresponding machine type code and a corresponding country code are stored in a main body NVM. When the corresponding machine type code and the corresponding country code are not stored in the main body NVM, the CPU reads a machine type code and a country code stored in the unit NVM of the mounted replaceable unit from the unit NVM. The CPU stores the machine type code and the country code read from the unit NVM in the corresponding machine type code and the corresponding country code of the main body NVM.

Abstract: The image forming apparatus includes: a photoconductor including a photoconductive layer and an overcoat layer containing electroconductive particles; a charging unit charging the photoconductor to first potential; an exposure unit setting an exposure region to have second potential smaller than the first potential in absolute values; a development unit including a developer carrier and a power supply setting the developer carrier to have third potential; a potential setting unit setting the third potential smaller than the first potential and larger than the second potential in a first image forming operation, and setting it larger than the first potential in a second image forming operation, in absolute values; a current setting unit setting an inflowing current to a fixed current value in the second image forming operation; a detection unit detecting image density in the second image forming operation; and a controller controlling toner supply according to the image density.

Abstract: Apparatuses useful for printing and methods for controlling the temperature of media in apparatuses useful for printing are disclosed. An embodiment of the apparatuses includes a heated first roll including a first outer surface; a heated second roll including a second outer surface; a third roll including a third outer surface; a temperature sensor for sensing the temperature of the third outer surface; a belt supported on the first roll and the second roll and disposed between the first outer surface and the third outer surface, the belt including an inner surface and an outer surface; a nip between the third outer surface and the outer surface of the belt at which the belt heats media which include a surface, marking material on the surface and an interface between the surface and marking material; and a positioning device coupled to the second roll.

Abstract: Systems and methods are described that facilitate using end-user feedback to automatically distinguish between a normal behavior and a device failure which can be a hard failure (e.g., a device malfunction) or a soft failure. For instance, upon detection of a usage switch from a first device to a second device by a user, a survey message is sent to the user to solicit information regarding the reasons for the switch. If the switch was triggered by a device malfunction, the detected device failure is verified and an alert is sent to an administrator and/or potentially impacted users. If the switch was triggered by the user's need for functionality (e.g., color printing, collation, etc.) not provided by the first device, which is otherwise functioning properly, then the detected failure is determined to be a failure and the failure detection algorithm is updated accordingly.

Abstract: An image forming apparatus includes: an image carrier; a transfer member transfers the image carried on the outer circumferential surface of the image carrier onto a recording medium; a holding member that holds, on an outer circumferential surface of the transfer member, the recording medium fed to the transfer member; and a control unit that performs control so that in first image formation operation in which images of plural colors carried by the image carrier are sequentially transferred onto a single recording medium one color at a time, the holding member holds the recording medium on the transfer member, and in second image formation operation in which an image of a single color carried by the image carrier is transferred onto a single recording medium, the holding member does not hold, the recording medium on the transfer member.

Abstract: Systems and methods are described that facilitate validating electronic document conversion chain design in real time, as a designer edits a conversion chain that converts a document collection between formats. Waypoints are inserted into the document conversion chain by associating validation specifications with selected conversion components in the chain. AS the conversion chain is executed on a document collection, the validation specification is executed on all documents in the collection when a selected conversion component is executed. Validation results are returned to indicate to the designer which documents were successfully converted by the component and which were not. The designer can then modify the conversion chain, which is re-executed, and validation results are again presented to the designer for comparison to the pre-modification validation results. The designer can then approve or reject the modification(s) depending on whether document validation is improved thereby.

Abstract: A droplet discharging head comprises a pressure chamber in which fluid is filled through a channel, and a nozzle that is connected to the pressure chamber and which discharges the fluid as a droplet. After the droplet discharging head is assembled, at least the wall surfaces contacting the fluid are coated with a carbonized silicon film.

Abstract: An electrophotographic photoreceptor includes a conductive support; a photosensitive layer; and a surface protective layer as an outermost layer of the electrophotographic photoreceptor, wherein the electrophotographic photoreceptor satisfies following formulas (a) and (b): 3.6?(A+B)/C×100?6??(a) B?0.3??(b) wherein A (?m) represents a ten-point-averaged surface roughness RZJIS94 of the conductive support, B (?m) represents a ten-point-averaged surface roughness RZJIS94 of the surface protective layer, and C (%) represents a reflectivity of the surface protective layer against the conductive support.

Abstract: The sheet processing apparatus is provided with: a sheet aligning part that accumulates and aligns sheets so as to generate a bundle of sheets; an edge stitching processor that performs an edge stitching process by which the generated bundle of sheets is stitched together at one edge of the bundle of sheets; an apparatus housing that includes an opening portion through which the bundle of sheets is discharged to an outside of the apparatus housing; a saddle stitching processor that performs, outside of the apparatus housing, a saddle stitching process by which the discharged bundle of sheets is stitched together at a center portion of the bundle of sheets in a transporting direction of the bundle of sheets; and a stacking tray that is provided below the opening portion and outside the apparatus housing, and on which the bundles of sheets subjected to the edge stitching process and the saddle stitching process are capable of being stacked.

Abstract: A system of scheduling a plurality of print jobs in a document production environment may include resources and a computer-readable storage medium including programming instructions for performing a method of processing print jobs. The method may include receiving print jobs and setup characteristics corresponding to each print job. Each print job may have a corresponding job size. The print jobs may be grouped into sets based on a common characteristic and each set may be identified as a fast job set or a slow job set based on setup characteristics associated with the set and the job sizes of the print jobs in the set. The fast job set may be routed to a fast job autonomous cell and the slow job set may be routed to a slow job autonomous cell.

Abstract: An image forming apparatus includes an image forming device, a time detection unit, a humidity measurement unit and a controller. The image forming device includes a photoconductive body, a developing device and a transfer device. The time detection unit detects information concerning a stop time period of the developing device. The humidity measurement unit is provided in a casing in which the image forming device is provided and measures a humidity. The controller controls a developer supply member in the developing device based on the information concerning the stop time period detected by the time detection unit and information concerning the humidity measured by the humidity measurement unit, so as to rotate at a lower speed than a rotation speed at a normal time before the developing device starts a first developing operation after the developing device stopped.

Abstract: An information processing device includes a digital-information generating unit, an identifier assigning unit, an attribute setting unit and an electronic signing unit. The digital-information generating unit serially generates pieces of first digital information. The identifier assigning unit assigns different identifiers to the respective pieces of first digital information generated by the digital-information generating unit. The attribute setting unit sets an attribute of each first digital information so as to include the identifier assigned to each first digital information. The electronic signing unit electronically signs each first digital information to which the attribute setting unit sets the attribute including the corresponding identifier.

Abstract: A monitoring apparatus includes: a reception section that receives information including first use mode information from an first information processing apparatus; a storage section that stores the first use mode information received by the reception section; and a transmission section, when the reception section receives fault information together with the first use mode information from the first information processing apparatus, that transmits information concerning countermeasures against a fault to the first information processing apparatus based on the first use mode information and pieces of second use mode information, stored in the storage section, of second information processing apparatuses which normally operate.