Abstract: An image processing apparatus includes an operation unit having a display device, and includes a sensor to detect an abnormality of the operation unit. Where the sensor detects an operation unit abnormality, display data is generated for performing display including an error notification regarding the detected abnormality. The generated display data is provided to at least one of the display device and an information processing apparatus. In a case where (i) first data for performing display includes the error notification, includes an instruction portion to receive an instruction to continuously use the image processing apparatus, and is provided as provided display data, and (ii) an instruction to continuously use the image processing apparatus is received via the instruction portion, screen data is provided, in place of the generated display data, the provided display data for displaying a screen for using an the image processing apparatus function.

Abstract: An image processing apparatus includes an operation unit having a display device, and includes a sensor to detect an abnormality of the operation unit. Where the sensor detects an operation unit abnormality, display data is generated for performing display including an error notification regarding the detected abnormality. The generated display data is provided to at least one of the display device and an information processing apparatus. In a case where (i) first data for performing display includes the error notification, includes an instruction portion to receive an instruction to continuously use the image processing apparatus, and is provided as provided display data, and (ii) an instruction to continuously use the image processing apparatus is received via the instruction portion, screen data is provided, in place of the generated display data, the provided display data for displaying a screen for using an the image processing apparatus function.

Abstract: A printing system includes at least one processor that acts as a storing unit and a determination unit. The storing unit causes history data about a print job to be stored into storage. The determination unit determines whether to cause a user to perform confirmation processing at a time of printing based on the history data about the print job that is stored in the storage.

Abstract: A printing system includes at least one processor that acts as a storing unit and a determination unit. The storing unit causes history data about a print job to be stored into storage. The determination unit determines whether to cause a user to perform confirmation processing at a time of printing based on the history data about the print job that is stored in the storage.

Abstract: A method for producing a positively chargeable toner, including: step 1: melt-kneading a toner raw material composition containing a resin binder, a positively chargeable charge control agent, and fine fluororesin particles, and a recycled powder; step 2: cooling a melt-kneaded mixture obtained in the step 1, and pulverizing a cooled mixture; and step 3: classifying a pulverized product obtained in the step 2, wherein the resin binder in the toner raw material composition contains 50% by mass or more of a polyester having a softening point of 125° C. or higher and 170° C. or lower. The positively chargeable toner obtainable by the method of the present invention is suitably used in developing latent images formed in, for example, an electrophotographic method, an electrostatic recording method, an electrostatic printing method, or the like.

Abstract: A method for producing a positively chargeable toner, including: step 1: melt-kneading a toner raw material composition containing a resin binder, a positively chargeable charge control agent, and fine fluororesin particles, and a recycled powder; step 2: cooling a melt-kneaded mixture obtained in the step 1, and pulverizing a cooled mixture; and step 3: classifying a pulverized product obtained in the step 2, wherein the resin binder in the toner raw material composition contains 50% by mass or more of a polyester having a softening point of 125° C. or higher and 170° C. or lower. The positively chargeable toner obtainable by the method of the present invention is suitably used in developing latent images formed in, for example, an electrophotographic method, an electrostatic recording method, an electrostatic printing method, or the like.

Abstract: To prevent falsification of an attribute of data, a mechanism is provided, which encrypt document/image data while holding the attribute contained in electronic document data as a plain text and make it extremely difficult to decrypt the document/image data if the attribute is falsified. A transmitter receives a public key set including a plurality of public keys from a receiver, encrypts the document/image data using a common key, selects a public key from the public key set based on an attribute of the data, encrypts the common key using the selected public key, and transmits the data including the encrypted document/image data, the encrypted common key, and the attribute to the receiver.

Abstract: An image forming apparatus that is capable of accessing a removable storage medium and automatically starting an operation of calibration thereof without waiting for a user to input a job, on an as-needed basis, when a storage medium is mounted therein. A printer engine performs an image forming operation according to data read from the medium, and a controller executes calibration of the printer engine. The controller detects whether or not the medium is inserted, and determines attributes of data stored in the medium. Based on a result of determination, the controller causes the calibration to be selectively started.

Abstract: A toner for non-contacting fusing containing toner matrix particles containing a resin binder and an external additive having an average particle size of from 10 to 100 nm, wherein the external additive is externally added to the toner matrix particles, wherein the resin binder contains one or more polyesters, wherein a carboxylic acid component of the polyester contains one or more isophthalic acid compounds and one or more fumaric acid/maleic acid compounds, wherein the isophthalic acid compound is contained in an amount of from 10 to 35% by weight, the fumaric acid/maleic acid compound is contained in an amount of from 1 to 15% by weight, and the isophthalic acid compound and the fumaric acid/maleic acid compound are contained in a total amount of from 20 to 36% by weight, of a total amount of the entire raw material monomers of the polyester in the resin binder, and wherein the toner has a softening point of from 90° to 120° C.

Abstract: A toner for electrostatic image development containing toner matrix particles having at least a resin binder and a colorant, and an external additive, the external additive having composite oxide particles (an external additive A) that have titania and silica, wherein the external additive A has a core-shell structure in which a core portion has the titania and a shell portion has the silica, wherein the titania is present in the external additive A in an amount of from 75 to 95% by weight, and the resin binder comprising a polyester obtained by polycondensing a carboxylic acid component comprising an isophthalic acid compound and an alcohol component (a polyester A).

Abstract: A control method for controlling a printing apparatus configured to print image data and capable of conveying a printed sheet to a postprocessing apparatus configured to trim the printed sheet identifies and manages a region to be cut off by trimming and another region not to be cut off by the trimming and allows a user to easily edit an image included in the region to be cut off by the trimming. The control method includes displaying the image data, editing the displayed image data, obtaining information about a trimming position at which the postprocessing apparatus trims the sheet, and executing control for permitting editing of a first region, which is a region to be cut off by the postprocessing apparatus according to the obtained information and for restricting editing of a second region not to be cut off by trimming by the postprocessing apparatus.

Abstract: A toner for electrostatic image development containing a resin binder, a negatively chargeable charge control agent, and a positively chargeable charge control agent, wherein the resin binder contains at least one polyester, wherein a carboxylic acid component of the polyester contains isophthalic acid and/or an ester thereof and fumaric acid and/or an ester thereof, provided that if two or more polyesters are used, the carboxylic acid component is taken as an overall component, and wherein the negatively chargeable charge control agent contains a metal-containing azo dye and/or a metal complex of salicylic acid, and wherein the toner has a softening point of from 90° to 120° C. The toner for electrostatic image development of the present invention can be suitably used in developing latent images formed in, for example, electrophotography, an electrostatic recording method, an electrostatic printing method, or the like.

Abstract: A toner for electrostatic image development, containing a resin binder and a wax, wherein the resin binder contains an amorphous polyester obtained by polycondensing a carboxylic acid component containing fumaric acid in an amount of from 55 to 100% by mole, with an alcohol component, wherein the wax contains an ester of pentaerythritol and a fatty acid having 15 to 25 carbon atoms, and a method of forming fixed images, including the step of applying the toner for electrostatic image development to a non-contact fixing type image-forming apparatus. The toner for electrostatic image development of the present invention is suitably used for, for example, developing a latent image formed in electrophotography, electrostatic recording method, electrostatic printing method, or the like.

Abstract: This presents an image processing apparatus and an image processing method which print and output image data subjected to halftone processing with an appropriate density characteristic. The image processing apparatus generates a halftone image from a multi-value image using a threshold value arrangement, and generates a difference image between the generated halftone image and a second halftone image having the density characteristic different from that of the generated halftone image. The image processing apparatus stores the generated halftone image and the generated difference image.

Abstract: A toner for electrostatic image development containing an external additive comprising composite oxide particles made of titania and silica (external additive A), and hydrophobic silica particles (external additive B), wherein the external additive A has a core-shell structure in which a core portion is made of titania and a shell portion is made of silica, wherein the titania is contained in the external additive A in an amount of from 75 to 95% by weight, and wherein the external additive B has a carbon content of from 2.8 to 6.0% by weight. The toner for electrostatic image development of the present invention is suitably used in, for example, the development or the like of latent image formed in electrophotography, an electrostatic recording method, an electrostatic printing method, or the like.

Abstract: A toner for electrostatic image development containing (a) a toner matrix particle containing a resin binder, and (b) an external additive added to the toner matrix particles, wherein the resin binder contains a polyester A obtained by polycondensing an alcohol component and a carboxylic acid component containing isophthalic acid and/or an ester thereof, and wherein the external additive contains fine silica particles containing a metal or a metal oxide; and A method of forming fixed images including the step of applying the toner for electrostatic image development to an image-forming apparatus according to a non-contact fusing method. The toner for electrostatic image development of the present invention is suitably used in developing latent images formed in, for example, electrophotography, an electrostatic recording method, an electrostatic printing method, or the like.

Abstract: A toner for non-contacting fusing containing toner matrix particles containing a resin binder and an external additive having an average particle size of from 10 to 100 nm, wherein the external additive is externally added to the toner matrix particles, wherein the resin binder contains one or more polyesters, wherein a carboxylic acid component of the polyester contains one or more isophthalic acid compounds and one or more fumaric acid/maleic acid compounds, wherein the isophthalic acid compound is contained in an amount of from 10 to 35% by weight, the fumaric acid/maleic acid compound is contained in an amount of from 1 to 15% by weight, and the isophthalic acid compound and the fumaric acid/maleic acid compound are contained in a total amount of from 20 to 36% by weight, of a total amount of the entire raw material monomers of the polyester in the resin binder, and wherein the toner has a softening point of from 90° to 120° C.

Abstract: A raster image processor (RIP) can process data for one page for each of a plurality of small areas, and handles each individual small area as a display list. Each individual display list holds information required to determine a rendering resolution. The RIP renders a small area including a text object with a high resolution, and a small area which does not include any text object with a low resolution. The RIP renders the respective small areas with the designated resolutions, and temporarily holds the rendering results in a memory for respective small areas. Upon generating a page image, the RIP directly transfers the high-resolution rendering result to a page memory. The RIP transfers the low-resolution rendering result to the page memory with applying an enlarging pixel process to the rendering result.

Abstract: A toner for electrostatic image development containing toner matrix particles having at least a resin binder and a colorant, and an external additive, the external additive having composite oxide particles (an external additive A) that have titania and silica, wherein the external additive A has a core-shell structure in which a core portion has the titania and a shell portion has the silica, wherein the titania is present in the external additive A in an amount of from 75 to 95% by weight, and the resin binder comprising a polyester obtained by polycondensing a carboxylic acid component comprising an isophthalic acid compound and an alcohol component (a polyester A).

Abstract: A toner for electrostatic image development containing an external additive comprising composite oxide particles made of titania and silica (external additive A), and hydrophobic silica particles (external additive B), wherein the external additive A has a core-shell structure in which a core portion is made of titania and a shell portion is made of silica, wherein the titania is contained in the external additive A in an amount of from 75 to 95% by weight, and wherein the external additive B has a carbon content of from 2.8 to 6.0% by weight. The toner for electrostatic image development of the present invention is suitably used in, for example, the development or the like of latent image formed in electrophotography, an electrostatic recording method, an electrostatic printing method, or the like.