Abstract: This invention discloses a method of producing a light source compensating element for adjusting the brightness distribution of light projected from a light source of a scanner onto a scanned object. The light source compensating element produced in accordance with this invention can be arranged between the scanner light source and the scanned object, thereby obtaining an even (or uniform) brightness distribution on the scanned object. In addition, compensating element with specific transmittance distribution can also be produced and placed between the light source of the scanner and the scanned object, whereby the light emitted from the light source through the compensating element has a specific brightness distribution on the scanned object.

Abstract: A lens motor and a conjugate length motor are driven to move a lens unit and a reading section to positions, respectively, which positions corresponding with a set magnification, autofocusing is carried out, and an actual focusing magnification is determined. It is then determined whether the actual focusing magnification is within a standard range corresponding to the set magnification. When the actual focusing magnification is outside the standard range, a number of pulses of the lens motor for changing the actual focusing magnification to the set magnification is calculated, the lens unit is moved again, autofocusing is carried out, and an actual focusing magnification is determined. This movement of the lens unit and autofocusing is carried out repeatedly until the actual focusing magnification falls within the standard range.

Abstract: Image calibration is performed for an image display apparatus. A known image is scanned with the image scanning apparatus using a first scanning resolution of the image scanning apparatus to obtain a scanned known image. The scanned known image is displayed on the image display apparatus using the first scanning resolution as a displayed known image. The image display apparatus is adjusted such that the displayed known image is an exact replica of the known image.

Abstract: A method and an apparatus for measuring linearity in a reproduction appliance includes an operating carriage bearing a scanning or recording device. The operating carriage is able to be moved in discrete steps in a given direction along a straight line. The operating carriage is successively moved along partial segments of the line. Each of the partial segments is longer than a travel corresponding to one of the steps and is shorter than the entire length of the line. The partial segments each have an exactly defined length defined by an additional carriage moveable along the given direction. The number of steps needed for each partial segment are counted and deviations between values for a travel of the operating carriage resulting from the partial segment and values for the travel of the operating carriage resulting from counting the steps are calculated.

Abstract: The present invention provides a system and method to effectively suppress idle fax signals. In one embodiment, the method includes detecting a fax indicator signal. The method further includes calculating a short term energy of the fax indicator signal. The method also includes calculating a short term energy of fax data subsequent to the fax indicator signal. In addition, the method includes discarding the fax data when the short term energy of the fax data fails to exceed the short term energy of the fax indicator signal.

Abstract: A process is provided to prepare production data for a print job. In one embodiment of the present invention, the production data includes an electronic document defined by a page description language (PDL). The electronic document is stored in a PDL image file, such as a Postscript file, a PDF file, or the like. A still image format proxy, which may be a JPEG file, a GIF file, a PNG file, or the like, is created of the PDL image file. The still image format proxy is electronically manipulated. In addition, production specifications may be appended to the still image format proxy. Information about the manipulations and production specifications are recorded and subsequently used to revise the PDL image file so as to match the PDL image file to the manipulations made to the still image format proxy and to match the production specifications appended to the still image format proxy.

Abstract: Apparatus for image capture via a blemished sensor, comprising: a large area pixel based image sensor being actuatable to move between a first image capture position and a second image capture position, an image capture controller for controlling said sensor to move between said image capture positions during an image capture operation thereby to take a sub-image at each one of said positions so that each part of an image subject is captured by at least two separate pixels of said sensor, and an integrator, associated with said sensor, for integrating said sub-images into a single full image. Preferably, the sensor is tested to find blemish positions and a shift is calculated that minimizes the number of blemish positions that superimpose between the two pixel positions.

Abstract: An operator of a printer may choose a maximum decomposition time for a page of a print job. Each page in the print job must fully decompose before the maximum decomposition time is reached. If a page does not fully decompose before the maximum decomposition time is reached, the print job may be terminated. In addition, a notification may be generated advising the operator that a page of the print job did not fully compose before the maximum decomposition time was reached. The establishment of maximum decomposition times helps to ensure that a single print job does not monopolize a printer or other output device.

Abstract: A method is provided for substantially matching a first output produced by a first marking device with a second output produced by a second marking device. A first set of sample tone levels is produced using the first marking device. A second set of sample tone levels is then produced using the second marking device. The first and second sets of sample tone levels are then compared and one or more calibration set points are determined. A custom tone transfer function associated with the first marking device is generated in accordance with the calibration set points. The first output is then produced from the first marking device using the custom tone transfer function.

Abstract: Apparatus and method for monitoring print quality produced by a digital printing mechanism in real-time. Print quality is measured by: generating a background reflectance signal representative of the reflectance of a substrate; scanning the image to generate a post-print reflectance signal; comparing the reflectance signal with the post-print reflectance signal; and, if the post-print reflectance signal is greater than a predetermined fraction of said reflectance signal, generating an output signal indicative of poor quality. In one embodiment of the invention, the output signal is also generated if the post-print reflectance signal is less than a predetermined minimum value.

Abstract: An error detection apparatus and method for use with engravers, such as gravure engravers. An error value E corresponding to the difference between a set of predetermined setup parameters and actual measurement of a portion of an engraved area on the cylinder is determined. The error value E is then used to adjust the engraver to engrave an actual cut or etch in accordance with the set of predetermined setup parameters. Advantageously, an error detection and correction system is suitable for providing a closed-loop system for engraving a cylinder. The apparatus and method may be used during initial setup or during normal operation of the engraver. Other features include an autofocus routine to facilitate the auto-focus procedure. Also, image processing is further enhanced by gap filling, discontinuity removal, and light calibration methods which may be used alone, in combination with each other, or in combination with the automatic focus system and/or automatic shoe system.

Abstract: This invention specifically covers one of the many image quality (IQ) metrics that can be part of an overall image quality (IQ) analysis engine. The specific problem with image quality addressed with this metric is that of printed text. Analytical outline font characters are used to represent certain traits of existing text characters, allowing proper image quality analysis while simplifying image processing. Preferably, a set of analytical outline font characters are used, with each representing a different trait.

Abstract: In an image processing apparatus using a four-channel output CCD, a deviation in left-and-right CCD characteristics is detected and the deviation is corrected, thereby to reproduce uniform image density free from a density error between left and right portions of a screen with respect to a center of the screen. A gray-scale pattern image is read by a scanner in a gray-scale pattern read-out mode. Deviations in left and right CCD portions are detected for respective gray scales of the gray-scale pattern image. In accordance with the magnitude of the deviations, a correction amount is determined. The correction amount is set in a left-and-right correction circuit whereby image density correction is made for each gray scale.

Abstract: A facsimile transmission relay apparatus, referred to as an Intelligent Facsimile Relay (IFR) for improving call success rates in long delay environment such as terrestrial cellular, fixed wireless, and geostationary mobile satellite systems and the like. A first bi-directional telecommunications interface is provided for receiving facsimile signals from a transmitting facsimile device via a first network such as a Public Switch Telephone Network (PSTN). A buffer memory is used by the IFR for storing the facsimile signal, and a second bi-directional telecommunications interface retransmits the facsimile signal via the second network.

Abstract: A clock dividing section receives a system clock and generates and outputs clock signals of two or more types. Selectors select any of the clock signals of two or more types outputted by the clock dividing section and feed it to a printing control block or reading control block. A decision divider monitors operational states of each block and gives control so that a frequency to be supplied to a functional block in an idle state where any operation is not required is lower than that to be supplied to a functional block being in an active state. Power consumption of the whole custom IC can be more reduced compared with a configuration wherein a clock of fixed frequency is constantly supplied to each functional block and a noise can be controlled.

Abstract: In an apparatus for point-by-point and line-by-line, opto-electronic scanning of masters chucked on a scanner drum, an illumination unit is provided for generating an illumination spot on the master. A scanner objective, a scanner element and a feed support is provided at which the illumination unit, the scanner objective and the scanner element are arranged. The illumination unit comprises a light conductor that is aligned in the direction of the rotational axis of the scanner drum and has a light exit face for generating a light spot and has optical elements for imaging the light spot onto the master as an illumination spot. At least a sub-section of the light conductor in the region of the light exit face can be inclined by small angles relative to the rotational axis with a Cardanic bearing for fine adjustment of optical beam paths, as a result whereof the illumination spot is displaced on the scanner drum. The slope of the light conductor that has been found to be optimum is then fixed.

Abstract: In a method and an apparatus for point-by-point and line-by-line scanning of a master chucked on a scanner drum, for pixel-by-pixel illumination of the master, a light spot is generated in a light conductor and is imaged onto the master as illumination spot. The light conductor is arranged displaceable with an actuating drive for the purpose of modifying the imaging scale of the illumination spot. For setting the illumination, the luminance of the illumination spot is measured with the opto-electronic scanner element. In a computer, control signals for the actuating drive are generated dependent on the measured luminance. For setting the optimum illumination of the master, the imaging scale of the illumination spot is modified such by displacing the light conductor that the measured luminance of the illumination spot is maximum.

Abstract: An image processing apparatus for correction on mounting shifts among sensor chips in a contact image sensor. The apparatus has plural sensor chips each having plural pixels, arrayed in a main scanning direction, and a correction device which performs correction on a shift in the main scanning direction and/or a subscanning direction between adjacent sensor chips in a signal outputted from the plural sensor chips. The correction device performs different processing in a first sensor chip interval and a second sensor chip interval.

Abstract: A dual digitizer for digitizing both transparent and reflective data mediums is provided where light from the reflective illuminator reflects off the transparent illuminator when the transparent illuminator is off to provide a white reference signal for use in calibrating the dual digitizer. A method of calibrating a dual digitizer for reflective scans includes: digitizing a transparent data medium; calibrating the dual digitizer to establish a white reference signal, the calibrating step including generating a light beam, reflecting a first portion of the light beam off a transparent illuminator, and utilizing the first portion of said light beam to establish the white reference signal; and digitizing a reflective data medium. The dual digitizer may be used in medical applications to digitize a transparent data medium such as an X-ray film.

Abstract: A laser printer develops print data into first image data having a resolution of 1200×1200 dpi in the fine mode. Then, the laser printer breaks the first image data into blocks of two consecutive lines, retrieves image data A0, B0, A1, and B1 from the two consecutive lines of image data, and rearranges the retrieved image data alternately. As a result, two lines of image data are rearranged into one line of image data having a resolution of 2400×600 dpi. Based on the rearranged image data, the laser printer having an intrinsic resolution of 600×600 dpi executes printing while performing pulse width modulation of a laser beam. On the other hand, in the normal mode, the laser printer develops print data into second image data having a resolution of 600×600 dpi, and executes printing based on the second image data. Accordingly, the print mode can be changed appropriately between the fine mode and the normal mode.

Abstract: A non-coplanar calibration system exists when the calibration reference plane is offset from a document plane. Due to size, shape, or other factors attributable to a scanning system, it may not be feasible to place the calibration reference plane on the document plane, i.e., the platen glass. Lamp-fall off represents an effect that occurs as you get closer to the ends of the lamp and light energy is diminished. The profile difference between the calibration plane and the document plane in a non-coplanar system can be corrected for on a pixel by pixel basis. Illumination fall off due to the change in the distance from calibration plane to the document plane represents the main effect that must be corrected for. Also, the platen glass must be taken into account. A single calibration correction factor can be applied to each CCD element in a scanning system to account for the shift from calibration plane to document plane.

Abstract: A method of calculating engraving parameters for a gravure cylinder at a desired raster, cell shape and stylus angle given an estimate of the engraving parameters. The method includes inputting a set of initial parameters including an initial raster, an initial cell shape, an initial stylus angle, an initial highlight width, an initial shadow width, an initial channel width and an initial space. The method proceeds by calculating an initial value of a cell volume from the initial parameters. Next, a set of new parameters are inputted including a desired raster, an estimate of a desired highlight width, an estimate of a desired shadow width, an estimate of a desired channel width and an estimate of a desired space. Then, a new value of the cell volume is calculated from the new parameters.

Abstract: Print picture quality of an image processing apparatus is diagnosed, thereby enabling whether it is necessary to perform maintenance of the image processing apparatus or not to be monitored even from a remote location. For this purpose, a system for diagnosing the print picture quality of the image processing apparatus has: transfer means for transferring test data which is necessary for a test print from a server to the image processing apparatus; image input means for scanning an image which was print-outputted by the image processing apparatus in accordance with the test data and inputting image data; discriminating means for examining the image data and discriminating the print picture quality of the image processing apparatus; and notifying means for controlling whether the server is notified of the discrimination result in the discriminating means or not in accordance with this discrimination result.

Abstract: A scanner includes a housing, a transparent platform, a scanning module, a motor and a calibration paper. The transparent platform is installed on the housing for a document to be placed on. The scanning module is moveably installed inside the housing for scanning the document. The motor is installed inside the housing for driving the scanning module. The calibration paper is installed at a front end of the housing and has a graph for calibrating step angle errors of the motor.

Abstract: A method embodiment of the invention tests revisions made to printer graphics interpreter software. A test suite of POSTSCRIPT, PCL, or other high-level printer language is input to a production version of a printer's internal interpreter software. A first bit-map is generated by the interpreter that is normally used to control each pixel in the printing of a page. The same test suite is fed to a work-in-progress revision of the printer's internal interpreter software. A second bit-map is generated. The first and second bit-maps are subtracted from one another. A difference bit-map is inspected. If only minor shifts of objects are noted, or if no differences at all are apparent, the work-in-progress revision is accepted as the new production standard. The second bit-map is used to replace the first. Otherwise, the work-in-progress revision of the printer's internal interpreter software is reworked to correct the printing interpretation errors it was making.

Abstract: An optical scanner equipped with plug-in calibration film, which the optical scanner provides light incident upon a transmission-typed document and catches the image signals of the transmission-typed document by an optical chassis. The optical scanner equipped with plug-in calibration film includes a scanning zone and at least one attachment. The scanning zone is capable of providing for placing the transmission-typed document. The attachment is capable of providing a calibration film for enabling the optical chassis to retrieve the image signals so as to improve the image brightness.

Abstract: A white reference image is inputted to an image sensor with a light source lit up, and white reference data is set every effective photosensor element by inspecting the output signals of the image sensor as to the white reference image (steps S305 and S310). After the input of the white reference image, the light source is extinguished (point e in FIG. 1), a black reference image is inputted to the image sensor (step S315), and black reference data is set every effective photosensor element by inspecting the output signals of the image sensor as to the black reference image (step S320). After the light source is lit up (point f in FIG.

Abstract: A control system having device units removably attachable to a control device such as a computer is arranged to optimize the allocation and distribution of electric power to the device units. Each device unit of the system includes a communication circuit arranged to transmit information of electric power consumption and an operating state of the device unit detachably connected to the control device such as a computer, a stopping circuit for partly stopping a function of the device unit according to a control signal sent in reply from the control device on the basis of information of varied kinds transmitted through the transmission circuit to the control device. The control device is arranged to receive information on the device unit from the device unit, and a control circuit arranged to compare the information of electric power consumption and the operating state received by the communication circuit with information of the amount of electric power which can be supplied to the device unit.

Abstract: A method for determining dimensions of an engraved cell formed by an electronic engraving machine, is described. During a test engraving period, test cells are engraved with desired dimensions defining predefined desired tonal values. An engraving element controlled by an engraving control signal is used for engraving a sequence of cells into a rotating printing cylinder resulting in engraved cells. Actual dimensions of the engraved cells represent actual tonal values. A measuring apparatus constructed as a mobile cell measuring instrument is placed on the printing cylinder to be measured. The actual dimensions of the engraved cells are measured and the actual dimensions are compared with the desired dimensions to obtain setting values for calibrating the engraving control signal such that the actual tonal values correspond to the desired tonal values. The actual dimensions of the engraved cells are transmitted wirelessly to a measured value receiver for further processing.

Abstract: A visual sensor has a first portion and a second portion. The sensor is able to detect the state of one or more imaging parameters such as exposure setting, pulse width modulation, focus, balance, spot ellipticity, sidelobe size, shape, and intensity, media gamma, edge sharpness, dot gain, uniformity, ink receptivity, physical changes in the media, pattern dependent effects such as dot gain or tone resolution compared to the type of halftone used, and sensitivity to calibrated position or exposure errors. The first image portion has a first imaging characteristic, and the second image portion has a second imaging characteristic. Imaging characteristics are characteristics of an image, including, but not limited to apparent density level, tint, color, reflectivity, absorption, granularity or microstructure, size, shape, distribution, degree of randomness, structure, edge sharpness, and depth or dimension.

Abstract: An image reading device includes a control unit for controlling an image reading unit so as to perform a reading operation within a range obtained by adding predetermined widths m and n to a reading range set after prescanning by a setting unit so that the relationship of X2=X1+m and Y2=Y1+n holds at main scanning, where m and n are constants, X1 and Y1 are the lengths of the set reading range in the x-axis and y-axis directions, and X2 and Y2 are the lengths of an actual reading range in the x-axis and y-axis directions, respectively. As a result, it is unnecessary to perform troublesome operations, such as reassigning a reading range, and again performing a reading operation.

Abstract: A method for dynamic calibration uses multi-sampling point distribution to analyze different distributions, then dynamically decides the total number of points counted and the best calculating method for the final calibration in order to get the most stable, accurate, and best calibrating result with different scanners and situation. Method of calculation include direct averaging, weighed average, multi-fixed-range averaging, and standard deviation range averaging.

Abstract: The adjusting apparatus and method of the present invention are used to carry out boundary adjustment, horizontal position adjustment, and resolution adjustment, wherein the track deviations can be detected by showing waveforms corresponding to the illumination of the scanned image of the adjusting apparatus on an oscilloscope. Moreover, the blank block region provided in the center of the adjusting apparatus can be used in conjunction with the blank regions provided at two sides of the adjusting apparatus for analyzing the illuminations of the scanned image at the center and two sides of the image-receiving device.

Abstract: Disclosed is a method for causing a coinciding of resolutions of facsimile devices having different systems of measurement. The different systems of measurement can be a metric system and an English system of measurements. The method according to the present invention includes the steps of: exchanging protocols between a transmission-side facsimile device and a reception-side facsimile and determining a designed unit and a resolution of the reception-side facsimile device; calculating a rotating velocity of a step motor to be adapted to the designed unit and the resolution; driving the step motor at the rotating velocity to scan a document; and transmitting data obtained from the document to the reception-side facsimile device.

Abstract: In a method for measuring cups given the engraving of printing cylinders in an electronic engraving machine, an engraver of an engraving member engraves cups into a printing cylinder. The geometric dimensions of the cups represent actual hue values. A video image of the cups is picked up. The contour of a cup is determined in the video image and the geometric dimensions of the cup are determined in that the cup contour is measured. For this purpose, the cup contour in the picked up video image is smoothed by a simulation with a spline function or a general polynomial function, and the geometric dimensions of the cup are determined on the basis of the smoothed cup contour. The determined geometric dimensions are the transverse diagonal, the longitudinal diagonal, the through-cut, the web width, the cup surface or the cup volume.

Abstract: Image information is re-calibrated based on the type of marking process and materials by which the image corresponding to the image information was marked on a substrate. The marking process is automatically detected by using, for example, at least one spatial characteristic obtained from the image information.

Abstract: A communication apparatus and its control method which assure an execution of a polling communication in a state that an ECM transmit inhibition is selected while an ECM receive inhibition is not selected for communications in the ITU-T Recommendation V.8, V.21, V.27ter, V.29, V.17, or V.34, by executing a V.17 or lower transmission without executing a V.34 transmission if the ECM transmit inhibition is selected, by executing a V.17 or lower reception without executing a V.34 reception if the ECM receive inhibition is selected, and by executing a V.8 protocol for a reception so as to execute a V.34 reception if it is a receive operation or to shift to a V.17 or lower polling transmission if it is a polling operation and executing a V.17 or lower transmission for a transmission in a state that the ECM transmit inhibition is selected while the ECM receive inhibition is not selected.

Abstract: A facsimile communication system includes a calling and a called facsimile machine connected via a communication network. Each of the facsimile machines has a timer value representing a maximum allowable response time for a response signal relative to a signal transmitted to the counterpart facsimile machine. Using the timer value, each of the facsimile machines monitors whether the response signal is received from the counterpart facsimile machine within the timer value. If the response signal is not received within the timer value, retransmission of the transmitted signal is required. The called facsimile machine transmits all timer value change information for increasing the timer value to the calling facsimile machine. The calling facsimile machine selects the optimum timer value change information within the range of the timer value change information received from the called facsimile machine, and transmits the selected timer value change information to the called facsimile machine.

Abstract: An image quality analysis system is provided that allows highly accurate measurements of motion quality defects. The motion quality analysis process relies only on relative measurements, which can be performed sufficiently accurately with standard input scanners. The technique can therefore be incorporated in the image path of a copier or multi-function printer being tested to allow on-the-fly motion quality correction without the need for expensive, high precision measuring equipment. The system includes one or more digital test patterns provided in hardcopy form for providing one or more hardcopy test images, an input scanner that can scan the hard copy test image to form a digital raster image, and an image quality analysis module that receives information about the position of the digital raster image and produces test results relevant to determination of image quality analysis, particularly motion quality defects.

Abstract: In an image reading apparatus for reading an original mounted on an original mount by a sensor, such as a CCD (charge-coupled device) or the like, a reference image is provided in a plane substantially the same as an original-mounting surface of the original mount, and the reference image is read by the sensor. Distortion in the main body of the image reading apparatus when installing the apparatus in a “location of use” is thereby measured.

Abstract: An engraver having an engraving signal generating system for engraving a workpiece. The engraver includes a setup circuit enabling direct dimensional control of the cavities engraved by the engraver. Controls are provided for setting at least one of a plurality of parameters, such as a black cell width. These parameters are fed to the setup circuit which translates them into multiplication factors for an AC signal and a videosignal. The multiplied signals are combined with an offset signal to produce an engraving signal.

Abstract: A document-image reading device that can analyze a speed fluctuation state of a scanner when scanning an image in the feed direction by separately extracting speed fluctuation components by reading a change in density of reference scale lines and, on the basis of the analysis result, prevents the occurrence of an image blur that may be resulting from unstable factors of a driving mechanism.

Abstract: A system and method are provided for acquiring data in a computer system. The present system and method provide a distinct advantage in that a local printer/scanner is employed to perform data acquisition to a central server or other system, etc. In one embodiment, the present system includes a processor circuit having a processor and a memory. Stored on the processor and executable by the memory is scan/correction logic. The scan/correction logic includes logic to obtain a set of coordinates of a response area on a digital form and logic to transmit the coordinates to a scanning apparatus to scan a hardcopy form at the coordinates to determine a response recorded thereon. The hardcopy form is associated with the digital form. Finally, the scan/correction logic includes logic to store the response received from the scanner/printer apparatus in an answer file in the memory.

Abstract: Selection of pixels from a scanned image of a target document. The target document includes a plurality of color patches. The image includes a rectangular grid of pixels at least some of which correspond to a color patch on the target document. All of the selected pixels correspond to the color patch. The pixels of the image have color values associated therewith. A position in the image is determined which is expected to correspond to the color patch on the target document. An approximation is selected of pixels which correspond to the color patch at the determined position in the image. Groups of all pixels for a border of the approximation are successively discarded, thereby reducing an area of the approximation. The groups of pixels are successively discarded until a variance of color values is stabilized for pixels in the approximation.

Abstract: Methods and apparatus for determining the optimal adjustment of imaging systems used to prepare lithographic printing surfaces for a printing press are described. A series of test patterns are imaged while varying a particular imaging parameter. This is followed, if necessary, by processing the plate in processing line. The plate is then returned to the digital imaging system where the reflectivity of the imaged test patterns is measured using a radiation source and detector, to determine the optimal setting for the parameter.

Abstract: In a device for reading an image, abnormal pixels are detected by reading a reference white board as a reference on a read line for reading a given document, and image information formed by the abnormal pixels is stored in that statistical data of the abnormal pixels is stored for each number group of the abnormal pixels obtained by the detections.

Abstract: A method, apparatus, article of manufacture for transmitting data to a facsimile presentation device is disclosed. In one embodiment of the invention, the method comprises the steps of receiving a presentation job comprising input data associable with at least one input grayscale value, retrieving at least one of a plurality of threshold matrices, each threshold matrix selected to control a grayscale rendering characteristic of the facsimile presentation device associated with the threshold matrix, applying the grayscale values to the retrieved threshold matrix to rasterize the input data, and transmitting the rasterized input data to the facsimile presentation device. This invention can be practiced in several embodiments, and permits the user to select the threshold matrix according to the presentation device and/or a selected presentation quality.

Abstract: A method, and apparatus in an ISDN system form a setup message at a source ISDN terminal where the setup message includes a resource coordination message containing the communication attributes of the source terminal. The ISDN source terminal sends the setup message using a synchronous protocol to an ISDN switch, where the ISDN switch implements a central resource coordination mechanism that extracts the source terminal attribute information. The ISDN switch sends an inquiry message over a D channel to a destination terminal so as to ascertain the communication attributes of the destination terminal, which are reported to the ISDN switch in a reply message. In light of the communication attributes of the source terminal and destination terminal, the ISDN switch and central resource coordination mechanism therein, compares and allocates ISDN communication resources and identifies common attributes.

Abstract: A method, apparatus and article of manufacture for providing improved print quality regardless of media smoothness is disclosed. Information regarding the smoothness of media is ascertained and the information about the media smoothness is used in the generation of an output. A selectable halftone screen is used in the print device to provide different halftone screens for different media smoothness. The halftoning screens can be changed depending on the roughness of the media being used. Pre-defined halftone screens may be stored and selected for a range of media smoothness. The selection of the pre-defined halftones may be selected by the operator or may be selected automatically by the print device.

Abstract: A method, apparatus and article of manufacture for modifying printing based upon direct on-the-fly media characteristic parameters is disclosed. The present invention on-the-fly directly measures a media characteristic parameter and performs real-time print modification in response thereto. The measured characteristic parameters include paper texture and composition, as well as adhesion and penetration of print. The modification of print in response to these measured parameters may allow a customer to maintain observed print quality with lower-cost materials. Adjustments may include the addition of coating, hot rolling, or adjustment of toner concentration. Measured parameters may include mottle, paper texture, and bleed through.