Abstract: The facsimile machine according to the invention can set a so-called night time collective time designation mode for power saving during night time processing time. Turning on a prescribed operation key of the facsimile machine permits printing. More specifically, even when the machine is in the power saving state, a printing operation is permitted in response to a key input.

Abstract: A facsimile transmission method according to the present invention is a facsimile transmission method of transferring a color image from a sending station to a receiving station through a communication line; the method including the steps of: reading an image of a colored original, generating a plurality of image data corresponding to predetermined color components respectively, and storing the image data in a memory at the sending station before calling up the receiving station; calling up the receiving station and determining a color printing ability of the receiving station; and sending appropriate image data from the sending station to the receiving station in accordance with the color printing ability of the receiving station.

Abstract: An image processing machine having an electrophotographically making copies of one or more originals. This image processing machine is designed to inhibit the electrophotographic copying function in the event that one attempts to make a copy of valuable papers such as monetary papers or securities and comprises a detecting unit for detecting a spatial frequency of a small region of an original to be copied, a calculating unit for comparing the detected spatial frequency with a standard spatial frequency used as a standard pattern, thereby to calculate the degree of similarity therebetween, a judging unit for judging whether or not the degree of similarity so calculated is greater than a predetermined value, and a determining unit for determining, when the judging unit indicates the degree of similarity greater than the predetermined value, that the original to be copied is identical with an original used as a basis for the standard pattern.

Abstract: A facsimile apparatus having a page memory includes a memory having a capacity of at least one line data that is printed by a printer. The reception signal of the facsimile apparatus received and compressed is expanded for printing, and written into the memory. The printer prints the message received according to the written expanded data.

Abstract: An image reading apparatus having a high-contrast mode of operation for reading character images and a halftone mode of operation for reading halftone images, including an image sensor converting optical image information into electric signals, an optical system for projecting an image on a document onto the image sensor, a threshold signal generator capable of generating a plurality of first threshold signals and operative to output one of the first threshold signals, a threshold signal generator capable of generating a plurality of second threshold signals and operative to output one of the second threshold signals, a mode selector circuit for selecting the high-contrast or halftone mode of operation, a density selector circuit for selecting the first threshold signal during the high-contrast mode of operation and the second threshold signal during the halftone mode of operation, and a combination of circuit networks for outputting halftone image signals during the high-contrast mode of operation on the bas

Abstract: In a facsimile apparatus, image data receiver receives compressed image data transmitted from a transmission apparatus apart from the facsimile apparatus. A first expanding section expands the received image data using a first expanding method, and a second expanding section expands the received image data using a different second expanding method. A data converter converts white and black binary image data into multi-value image data in multi-gradation stages representation, and a judging section judges whether the received image data are binary image data or multi-value image data.

Abstract: A facsimile device according to the present invention includes a reception device for receiving compressed image data, a memory for storing the compressed image data, a first expansion device for expanding the stored compressed image data, a detection comparison device for detecting the amount of the expanded image data and obtaining the difference between the amount and a prescribed value, a second expansion device for expanding the stored compressed image data again after the detection by the detection comparison device, an image formation device for forming an image on paper based on the image data expanded again, and a control device for controlling the image formation device based on the difference obtained by the detection comparison device.

Abstract: A facsimile apparatus capable of processing the image information receiving from a particular transmitter in a mode different from the usual mode of processing image information receiving to distinguish the communication from the particular transmitter from those transmitted by others immediately. For example, the image information receiving from the particular transmitter is recorded on different kind of paper from usual image information recording paper, or recorded in different color from usual image information recording color, or the paper recorded the image information from particular transmitter is discharged onto different tray from the tray onto which usual image information recording paper is discharged.

Abstract: A facsimile apparatus according to the present invention includes a receiver for receiving a code data transmitted by another facsimile apparatus, a memory for storing code data received by the receiver, a predecoder for decoding code data received by the receiver sequentially into image data, a detecting device checking the image data decoded by the predecoder for detecting the presence of reception error, a transmitter for transmitting a signal indicating the detected result of the detecting device to another facsimile apparatus, a redecoder for decoding again code data stored in the memory into image data after a signal is transmitted from the transmitter, and an image forming apparatus for forming an image on a paper sheet according to the image data decoded by the redecoder.

Abstract: A plurality of index members are arranged at desired positions on an end portion of a platen glass, the members being movable in a scanning direction of a scanner. A black mark is provided on a rear surface of each index member, and the mark as well as the original are read by an image reader, so that the positions of the index members can be detected. When one of the index members is detected as the scanner is moved, the image signals of the original included in the scanning region of the scanner are not outputted until the next index member is detected. In this manner, by continuously outputting image signals only of the desired areas of the original, the column skip edition can be readily and surely carried out.

Abstract: An image forming apparatus for forming a color image in a plurality of colors including a plurality of image forming units which are different in image forming color from each other, a spatial frequency detector for detecting a spatial frequency relating to an image of a prescribed color for every portion of an image to be formed, and a control unit for controlling the image forming units to perform image formation by one of the image forming units in a portion belonging to that having a high spatial frequency within portions to be subjected to image formation in the prescribed color while performing image formation by overlapping a plurality of colors through at least two of the image forming units in a portion belonging to that having a low spatial frequency on the basis of a detection output from the spatial frequency detector. Method steps for improving image color reproducibility are also described.

Abstract: A facsimile machine has a paper discharge tray, and a device for shifting image-carrying recording paper as placed on the discharge tray. The recording paper further carries information relating to senders as recorded on a leading end margin thereof. The shifting device is operable for shifting the recording paper in the direction of paper discharge in timed relation to an operation for recording each series of image data. Consequently, the recording paper is sorted on the discharge tray for visual identification of the senders.

Abstract: An image reading apparatus having a high-contrast mode of operation for reading character images and a halftone mode of operation for reading halftone images, including an image sensor converting optical image information into electric signals, an optical system for projecting an image on a document onto the image sensor, a threshold signal generator capable of generating a plurality of first threshold signals and operative to output one of the first threshold signals, a threshold signal generator capable of generating a plurality of second threshold signals and operative to output one of the second threshold signals, a mode selector circuit for selecting the high-contrast or halftone mode of operation, a density selector circuit for selecting the first threshold signal during the high-contrast mode of operation and the second threshold signal during the halftone mode of operation, and a combination of circuit networks for outputting halftone image signals during the high-contrast mode of operation on the bas

Abstract: A facsimile apparatus comprising a receiver for receiving a data transmitted through a line; image forming device for forming a toner image on a recording paper in accordance with the data; thermal fixing device for fixing the toner image on the recording paper by heating; detecting apparatus for detecting an operating condition of the receiver and outputting a signal in accordance with the receiving condition; and temperature controlling device for controlling an operating condition of the thermal fixing device based on the signal from the detecting apparatus.

Abstract: A facsimile device, which receives picture data of an original document, which is constituted by a plurality of data lines, through a telephone line and records the received picture data onto a record sheet, has a counting device for counting the number of the received data lines, an operation device for comparing the number of the data lines with a predetermined value and evaluating the number of data lines exceeding the predetermined value as an excess number, a determination device for determining whether each of the received data lines is valid or invalid picture data, a data processing device for removing the data lines that are invalid picture data, the number of which corresponds to the excess number, out of the received data lines in accordance with the determination by the determination device, and a recording device for recording the remaining received data lines processed by the data processing device onto the record sheet. A processing method is also disclosed and claimed.

Abstract: An image forming apparatus which includes an exposing device for projecting light onto an original so as to form an electrostatic latent image of an original image on a photosensitive surface of a photoreceptor, a reading device for reading the original image through separation per predetermined color in a reading picture element unit, a designating device for designating the color to be erased, an erasing device for erasing desired region of the electrostatic latent image on the photosensitive surface of the photoreceptor per erasing picture element unit, a converting device for converting color data in the reading picture element unit into color data in the erasing picture element unit, a display device for displaying the region to be erased based on the color data in the erasing picture element unit, and a control device for controlling the erasing device based on the color data in the erasing picture element unit obtained through conversion of the color designated by the designating device, by the convert

Abstract: A plurality of index members are arranged at desired positions on an end portion of a platen glass, the members being movable in a scanning direction of a scanner. A black mark is provided on a rear surface of each index member, and the mark as well as the original are read by an image reader, so that the positions of the index members can be detected. When one of the index members is detected as the scanner is moved, the image signals of the original included in the scanning region of the scanner are not outputted until the next index member is detected. In this manner, by continuously outputting image signals only of the desired areas of the original, the column skip edition can be readily and surely carried out.

Abstract: An image reader comprises a line image sensor for reading images of an original for every line, a CPU for extracting the density level of the background based on the read image data for comparing the extracted density level with a reference level to find the difference, light adjusting circuit for adjusting the intensity of a lamp for exposing the original so as to make the difference obtained by the operation equal to 0 and a compare circuit for converting the read image data to binary data, wherein the adjustment of the intensity of the lamp by the light adjusting circuit is carried out in parallel to the conversion of the image data by the compare circuit.

Abstract: The present invention relates to an image scanning apparatus for scanning the image of a document by moving a light source along the document image. In the image scanning apparatus of the present invention, the light source and the drive circuit for generating a high voltage to turn on the light source are mounted on a slider movable along the document image.

Abstract: A method of image processing for sampling the concentration of each portion of an image in the unit of a picture element and for binarizing the concentrations of picture elements in the unit of a submatrix of predetermined size to obtain a bi-level image, being characterized in that the bi-level image is obtained from the concentrations having been sampled according to the steps as follows: (a) calculating the average of the concentrations of the picture elements at every submatrix to which the picture elements belong; (b) determining the number of elements in the submatrix to be treated as either one of black and white according to a predetermined relation with the average; (c) assigning elements in the submatrix as the elements to be treated as either one of black and white up to the number determined in the step (b) in the predetermined order of the concentration of each element.