Abstract: A method for transforming an image, containing an arbitrary number of colors from a full color process printing mode to a spot color printing mode while preserving the user's intended color usage as much as possible. The method is contained in a utility and referred to as “Spot Color Transformation” (SCT). The SCT utility provides a user the ability to transform an image generated by a computer program module, such as a desktop publishing computer program module, from a full color mode into a spot color mode. The SCT utility operates on an object-by-object basis to map objects within an image to one of several partitions: a black partition and a color partition. The SCT utility maps each object that has an associated color that is substantially black or a tint of black to the black partition. Next, the SCT utility converts the colors of unmapped objects to a tint of the spot color based on the luminance value of the particular color relative to the lowest luminance value found in the image.

Abstract: Due to high resolution of color printers and the increased number of colors in image formation from four colors (Y, M, C and K) to six or seven colors including pale colors, the number of times of referring to LUT data and the number of times of calculation are increasing in interpolation operation for generating print data. In view of this, when inputted R, G and B data are converted to Y, M, C and K data by performing interpolation operation using a conversion table which expresses the input-output relations, if output values corresponding to eight vertices of a unit cube used for interpolation are the same value, the calculation is not performed but the value is outputted as the interpolation result.

Abstract: A method and apparatus which sends an encrypted FAX document to a receiving party. The encrypted FAX is printed out by a receiving FAX with an unencrypted heading, indicating who the intended recipient of the received encrypted FAX is, and a body of the FAX in an encrypted format. Once the intended recipient receives the encrypted FAX document, the document can be scanned and decoded after the intended recipient provides a decode code. The decoded document can be printed by or viewed on a computer.

Abstract: A facsimile device includes a device capable of transferring and receiving a message in a user-to-user signaling manner and an S-type interface card which is connected to an integrated service digital network (ISDN). According to the present invention, the facsimile device transfers and receives messages through a D channel to be used for transferring signals in the user-to-user signaling manner even though the facsimile device communicates with another facsimile device through B channels of the ISDN to transfer and receive data. Accordingly, channels provided to the facsimile device can be efficiently used.

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: An image data transfer system and method enable scan time and transfer time of the image data to be adjusted appropriately without lacking a part of the image data, suitable for low price. A data segmentation device segments the image data from a scan device into high order n bits and low order (N−n) bits, subsequently, transferring the high order n bits toward a data transfer device at the same time when the scan device scans a manuscript, and transferring the low order (N−n) bits toward a memory device. The data transfer device transfers the high order n bits of the image data toward a personal computer at the same time when the scan device scans the manuscript. The memory device stores therein the low order (N−n) bits of the image data temporarily. Furthermore, the data transfer device scans the low order (N−n) bits of the image data from the memory device to transfer toward the personal computer after transfer of the high order n bits.

Abstract: The digital synthesizer comprises a system control unit, a read control unit, and a write drive control unit, and based on a magnification fine adjustment value set using a magnification fine adjustment panel, in the copy mode, a magnification of an image in the main scanning direction is finely adjusted by controlling a write reference clock frequency for modulating a laser beam for image formation so that a desired pixel density is obtained and also a magnification of the image in the auxiliary scanning direction is finely adjusted by controlling a scan speed when reading an image from a document, while in the printer mode, a magnification of an image in the main scanning direction is finely adjusted by controlling a write reference clock frequency and also a magnification of the image in the auxiliary scanning direction is finely adjusted by controlling a rotational speed of a polygon mirror for scanning a photosensitive mirror with a write beam.

Abstract: The invention relates to a scanner with an external keyboard. The scanner comprises a scanner housing, a control circuit installed in the scanner housing for controlling operations of the scanner, a scanning module installed in the scanner housing and connected to the control circuit for scanning a document and generating corresponding document image signals, a keyboard electrically connected to the control circuit for inputting various key signals, and a display panel installed on the surface of the scanner housing and connected to the control circuit for displaying signals transmitted from the control circuit. The control circuit controls the operations of the scanner according to the key signals inputted by a user through the keyboard, and displays the key signals or instruction messages on the display panel.

Abstract: Image forming apparatus including a paper return device for feeding a sheet of paper ejected from a paper output port opening in a main body of the apparatus to its outside back to a paper feeding port also opening in the main body to its outside. For double-sided copying operation, the sheet of paper ejected from the paper output port carrying an image on one side only is returned to the paper feeding port and fed again to an image former from the paper feeding port so that it is not necessary to provide a dedicated paper path for re-feeding the paper. The apparatus includes a paper sensor which senses the paper inserted into the paper feeding port and outputs a paper sensing signal, a discriminator for judging whether the paper return device is in an operating condition, and a paper feed controller which controls a driver for driving a paper feeder such that the paper feeder initiates a paper feed operation when the paper sensing signal is output while the paper return device is in its operating condition.

Abstract: A multifunctional apparatus transfers and receives facsimile data and communication data by using an integrated service digital network constructed with a computer interface conducting facsimile and communication data; a line interface transferring data to the network and receiving facsimile and communication data from the network at the first transfer rate; an ISAC controlling a connection with the integrated service digital network, conducting facsimile and communication data via the network, converting the transfer rate of data received from the network to a second transfer rate, and converting the transfer rate of data received from for the network to the first transfer rate. A serial I/O converts the communication data transmitted from the computer through the computer interfacing section, and facsimile data scanned in a scanning section, into serial data, and transfers serial data to the ISAC, and receives communication and facsimile data from the network via the ISAC.

Abstract: A scanner 1 reads image information at read resolution set by a resolution control section 3 and stores the image information in memory 2. An image separation section 11 separates the image information into a first image plane (picture part), a second image plane (text part color information), and a selection image plane (text part forms) for selecting either the first or second image plane. The resolution control section 3 sets optimum resolutions in first to third resolution conversion sections 12-14 in response to image quality, the original type, the system environment, the image plane characteristics, etc. The three image planes are converted into the resolutions set in the first to third resolution conversion sections 12-14. The image planes after undergoing the resolution conversion are compressed in first to third compression sections 15-17 and wrapped in one data format by an image format section 18.

Abstract: A color discriminating apparatus is provided with: a luminance calculator for calculating luminance information of a picked up color image based on image data of each of a plurality of color components constituting the color image; a color information calculator for calculating color information of the color image based on image data; a first discriminator for discriminating, based on calculated color information, which the color image is chromatic or achromatic; a second discriminator for discriminating, based on calculated luminance information, which the color image is black or white when the color image is discriminated to be achromatic; and a third discriminator for discriminating, based on the calculated color information and the calculated luminance information, which of a plurality of predetermined colors the color image agrees with when the color image is discriminated to be chromatic.

Abstract: Upon simultaneously transmitting identical data to a plurality of destinations, a plurality of line control means prepared in units of lines independently transmit data with reference to transmission management means commonly used by these line control means. The transmission management means commonly used manages an image file, and includes a table for managing at least destinations.

Abstract: To obtain colorimetric values intended for regulating inking on a printing press (1) from a printed image (3) produced by the printing press (1), the printed image is measured calorimetrically in a plurality of pixels (4) with respect to a selected color coordinate system. The color vectors thus obtained for each pixel (4) are used to calculate color difference vectors to predetermined reference color vectors based on the same color coordinate system or reference color vectors determined from a reference printed sheet (3). The color difference vectors are multiplied by a weighting factor determined from the ink coverage of the pixels (4) and/or the color differences between the pixels (4) and their neighboring pixels (4). The color difference vectors weighted in this way can then be used as colorimetric values for regulating the inking on the printing press (1).

Abstract: A display tilt adjusting apparatus which may be employed in an electronic terminal device such as an electronic cash register is provided. The apparatus includes a pivotal support member, a stay, and a stay holding mechanism. The pivotal support member supports a display unit pivotably. The stay is connected to the display unit. The stay holding mechanism holds the stay to keep a display surface of the display unit at a set angular position. The stay holding mechanism is designed to produce a given degree of resistance to movement of the stay in a direction in which the display surface tilts rearward and keeps the stay free from the resistance in response to movement of the stay in an opposite direction in which the display surface tilts frontward.

Abstract: A system is provided for scanning batch-type documents containing indicia on either a single side or on two sides of each document sheet. Misfeeds through a scanning device are identified by comparison of an anticipated number of pages with an actual number of scanned pages. Similar misfeeds may be identified by comparison of first and second series of pages in two-sided documents. Automatic collating of scanned pages is then performed where desired. The automatic collating may be based upon simple interleaving of pages, or upon recognition of page identifiers, such as page numbers in common or anticipated regions of the page. The scanning, analysis and collating operations may be followed by other processing steps, including transmission of facsimiles, printing, copying, and so forth.

Abstract: In a process for calibrating an optoelectronic scanning member of a scanner which scans an image point by point and line by line and converts the modulated scanning light into image values in a light/voltage converter, converter densities are first determined and stored as a converter density table depending on different degrees of amplification of the light/voltage converter. The densities of the scanning diaphragms and grey filters used are also determined and stored as diaphragm density and grey filter density tables. A scanner-specific calibration is carried out with a reference diaphragm by adjusting the degree of amplification so that the image value corresponds to a predetermined white level. When a document-specific calibration is later carried out, the required amplification is automatically determined from the stored density tables and the white point density of the document in question. The light/voltage converter is then adjusted accordingly.

Abstract: In the case that a PC sends a call to a called site on a telephone line network, but fails in its connection, the PC and a modem of a facsimile apparatus are connected. Then, the telephone number and image data of the called site are stored in a RAM of the facsimile apparatus. After storage is completed, the telephone line network and the modem of the facsimile apparatus are connected. Then, a call is sent to the called site and the image data is sent to the called site. This allows connection to be made to the PC without using a dedicated interface and prevents burdening on the PC in redialing in the case that there is no answer from the called site.

Abstract: An image forming apparatus includes a plurality of memory devices, each including at least one image memory which stores image data. A controller controls input and output operations for the image data relative to the at least one image memory. An image reading device generates image data by scanning and reading an original document. At least one data input device inputs image data generated by an external source. A plurality of input paths transmit the image data generated by the image reading device and the image data input by the at least one data input device.

Abstract: In an communication system comprising a transmitter unit for digitally converting an input image signal and for outputting the converted image signal, and a receiver unit for entering thereinto the image signal derived from the transmitter unit and for displaying this entered image signal, the receiver unit outputs to the transmitter unit, an end signal for indicating that a display process of the image signal entered from the transmitter unit is accomplished.