Abstract: A modular printer system includes a number of modules that are capable of being logically and physically connected together. The modules include a printer module having a body that defines a print media feed path extending from an input end to an output end and a pagewidth printing mechanism positioned adjacent the media feed path between the input end and the output end for printing onto print media in the media feed path. At least one modular connector is arranged on the body to permit at least an image processing module to be connected to the body. A bus interconnects the printing mechanism and the image processing module to facilitate communication between the printing mechanism and the image processing module.

Abstract: Gamut-mapping from a source device to a destination device is performed in a perceptually linear color space such as CIECAM02 by separating a source image into primary color components and processing each primary component separately by mapping a source primary hue leaf with a destination primary hue leaf. The mapped primary components are then summed and a resultant destination image is obtained. Alternatively, hue rotation is performed by determining a relative position of an input color between the nearest primary and the nearest secondary color in a source hue wheel. The determined relative position in the source hue wheel is used to find a corresponding location in a destination hue wheel so that the hue angle for obtaining the destination hue leaf can be determined. In both processes, the source and destination hue leafs are mapped using a cusp-to-cusp mapping with a shear mapping process being used to pull in the remaining colors.

Abstract: An image processing apparatus is provided in which the frequency of undesired delay of the image output can be reduced. The image processing apparatus comprises an image processor for performing a process defined by a parameter on the image data of the received job, a decision portion for deciding a state of the image data of the received job, and a controller for setting a parameter in accordance with the state that is decided by the decision portion if an interval between the received job and the previously received job is longer than a predetermined time, and for setting the parameter that was used in the last job despite the state that is decided by the decision portion if the interval is not longer than the predetermined time.

Abstract: A system or method for managing devices (collectively “device management system”) is disclosed. The device management system uses a matrix, table or other data structure technique (collectively “data structure”) to configure the input parameter(s) for one or more devices. The data structure can be modified in a dynamic or static fashion to accommodate different device configurations and different device interactions. Use of the data structure can eliminate the need for multi-level “nested if” statements that are complex, deep, and difficult to modify without causing an unforeseen error. The data structure can encapsulate the hardware specific characteristics of the various devices so that the application software written for the various devices can be written independent of the hardware-specific characteristics of the devices. Thus, the data structure can act as an interface between hardware-specific characteristics relating to the various devices and various user interactions and other related factors.

Abstract: An image forming apparatus determines whether or not facsimile data with transmission terminal identification data added thereto is transferred on the basis of received transmission terminal identification data when receiving the facsimile data with the identification data. The apparatus retrieves whether or not a box to which the identification data is put as a name and to which a setting to transfer the received facsimile data is set is created in a storage unit when determining to transfer the received facsimile data. The apparatus transfers the received facsimile data in accordance with the setting of the box, when it is determined that the box is present.

Abstract: An image forming apparatus includes an image forming mechanism configured to perform an image processing operation for forming a plurality of elementary-color images, superposing the plurality of elementary-color images sequentially and accurately into a single color image on a transfer medium, and transferring the single color image onto a recording sheet. An error correction mechanism is configured to perform a plurality of different recording error corrections for correcting different recording errors in a main scanning direction and a sub scanning direction during a time interval between the image processing operations on the recording sheet and on a following recording sheet. And, a selector is configured to activate at least two of the plurality of different recording error corrections.

Abstract: A graphical scanner for scanning a graphical image includes a source for producing an optical beam, a monochromator for dividing the optical beam into a plurality of component beams for hyperspectral bandpasses, a director for directing the component beams to illuminate portions of the graphical image, a sensor for measuring a light intensity for the one or illuminated portions, and a translator for transforming the measured light intensities for each of the one or more portions into hyperspectral traces each representing a spectral power distribution. The translator further transforms the hyperspectral traces into one or more device-independent representations of color.

Abstract: A Micro-Electro-Mechanical System (MEMS) based Fabry-Perot array may be used as a spectral filter to light sensing array, such as a CCD or CMOS photodetector. Applying different voltages to the electrodes of individual Fabry-Perot cells within the array allows a gradient in the Fabry-Perot air gap across the Fabry-Perot array. In this manner the MEMS Fabry-Perot array serves as a spectral filter of light passing through the Fabry-Perot array to the photodetector array. Embodiments of the disclosed sensor, used with LEDs that emit light outside the photosensitivity range of a photoreceptor belt, may be used to measure spectral information from toned patches and/or images placed upon a photoreceptor belt within a marking system. Other embodiments of the disclosed senor, used with LEDs that emit light of any wavelength, may be used to measure spectral information from toned patches or images placed by a marking system upon a non-photosensitive output substrate, such as an intermediate belt or paper.

Abstract: The invention relates to a color image processing apparatus and, more particularly, to adjusting means of a color tone and a sharpness. According to the invention, there is provided a color image processing apparatus characterized by having processing means for performing processes to given color image data; memory means which can store a plurality of processing parameters of the processing means together with peculiar names, and means for searching the registered processing parameters from the memory means.

Abstract: This communicator makes it possible for the user to do telephone, facsimile, and data communication at any location. On a pen input device, a space eye 2, a telephone control system, a facsimile control system, and a data transmission system are mounted. All of them are operated by an input pen 55 or the space eye 2. The pen input device is connected to a wireless telephone equipment 7, and can be connected to a desired party through the public communication channel. In order to make the most of the equipment of a GPS user, the GPS user device 8 is connected to the pen input device 3. The current location of the GPS user is found through the GPS user device 8, and the data on the current location is transmitted to the party. Further. to make this communicator usable in any country, it is provided with means to connect it to a wireless telephone network of an individual service area of the country.

Abstract: A signal processing method for converting input color value information (Lab) represented in a uniform color space into a set of five output color levels of black, light black, and three chromatic colors (CMYKLk) is provided. A black output level (K) is determined based on the input color value information. Then, a light black output level (Lk) is determined based on the black output level and the input color value information. Output levels of the three chromatic colors (CMY) are also determined such that the determined output levels are colorimetrically consistent with the input color value information.

Abstract: When creating recording level specifying data referred to during recording of ink drops of N types (N is an integer of 2 or greater) of different ink levels onto a printing medium by a printing device, standard color value data indicating an association relationship between ink tone values and color values under a standard printing condition is acquired; under a predetermined printing condition, and using at least one type of the aforementioned N types of ink drops for each ink color, patches are printed at a plurality of recording levels, and the color values of the printed patches are acquired; the aforementioned plurality of recording levels are associated with color values; and on the basis of association of the aforementioned plurality of recording levels and color values and of the aforementioned standard color value data, there is created recording level specifying data that specifies, for each ink color, an association relationship recording levels of the aforementioned N types of ink drops and tone v

Abstract: To provide a printer command control apparatus, method and system that can prevent control commands from being sent erroneously to a printer connected to a printer command control apparatus, a printer connected to the printer command control apparatus, and a program and a storage medium. In the printer command control system, a NonPC apparatus is connected to a printer and, at the same time, connected to a web server via the Internet. A tag to be sent from the NonPC apparatus to the printer is constituted by a printer maintenance command header, which consists of a header ID and a manufacturer ID including information indicating to which manufacturer a command is adapted, and a printer maintenance command. When manufacturer information of the manufacturer ID and manufacturer information of the printer do not coincide with each other, the printer maintenance command is controlled not to be sent to the printer.

Abstract: A lighting reproduction apparatus for illuminating a subject includes a reproduction light optical source that generates reproduction light. The optical source includes a plurality of light emitters, each characterized by an individual color channel. There may be nine different color channels. A driver drives the light emitter color channels with intensity values at which a substantial spectral match is achieved between the reproduction light and the desired illuminant, so that the subject appears to be illuminated by the desired illuminant. These channel intensity values may be determined by solving a minimization equation that minimizes a sum of square residuals of the reproduction light spectra to the desired illuminant spectra. The output reproduction light may be metamerically, matched with the desired illuminant, with respect to a particular camera's spectral response. One or more spectral reflectances of the subject may be measured and incorporated into the optimization process.

Abstract: An image forming apparatus using a synchronization signal generator can easily generate a pixel clock that enables both a magnification correction in a main scanning direction and a correction of expansion and contraction of pixel width in the main scanning direction. Each of pixel clock generation units generates a clock signal by dividing a frequency of a high-frequency clock so as to generate pulses of a reference period, a long period longer than the reference period and a short period shorter than the reference period, and outputs, as the pixel clock, one of the pulses that is designated by an output selection signal. A pixel clock correction data synthesizing unit synthesizes a first selection signal, which is generated base on a time-series distribution of the pulses of each period defined by a first set of data, and a second selection signal, which is based on a time-series distribution of the pulses of each period defined by a second set of data, so as to generate the output selection signal.

Abstract: When the printer is off-line and receives a large volume of data, the receive buffer is not filled and the communication interface with the host computer does not enter a busy state. A receive buffer temporarily stores data, including control commands, from the host computer, and the printer operates according to the sequentially interpreted content of data stored to the receive buffer. By detecting whether the printer is on-line or off-line, data in the receive buffer is cleared when the printer goes off-line and data received from the host while the printer is off-line is discarded without being buffered.

Abstract: In an image processing method, on the basis of input image data with respect to a target pixel, independent multi-level data (g0, g1) corresponding to respective plural species of dots which are different in at least one of a density and a diameter are generated, and then data (O0, O1) relating to an amount of generation of the dots with respect to the target pixel are generated on the basis of a relationship between the generated independent multi-level data (g0, g1) corresponding to the plural species of dots. The image processing method is effective in performing design having a high degree of flexibility in proper use of a relatively high power dot (high density dot or large dot) and a relatively low power dot (low density dot or small dot) and can realize obviation or alleviation of an occurrence of granulation or an apparent frame caused due to the relatively high power dot.

Abstract: An image processing method creates a lookup table having a plurality of grids. The image processing method includes the steps of selecting a grid having a small difference from a target grid from among grids whose output values are calculated; setting an output value of the selected grid as an initial value; optimizing an output value of the target grid by using the set initial value; and storing the optimized output value as an output value of the target grid.

Abstract: A method and system which allows a remote monitoring and diagnostic computer or system to communicate using different communication protocols which are stored within a data base. After a communication is received, it is analyzed to determine if there is a protocol identifier. If the protocol identifier exists, a data base is searched to determine the format of the header of the communication. Once the format of the header is determined, the header of the received communication is read to determine the information contained therein. This information is utilized to determine the actual format of the data which follows. If the protocol identifier does not exist, the received communication is examined to determine if it is in a format which matches one of a plurality of previously defined format.

Abstract: A facsimile machine includes a printer unit for printing out data having a predetermined format, and an interface circuit for converting facsimile image data into recording data having a format in which the printer unit can input the recording data and for supplying the recording data to the printer unit. The printer unit includes a printing portion for printing recording data, and a data supply control circuit for supplying the recording data from the interface circuit to the printing portion at predetermined printing intervals.