Abstract: There is described an image processing system in which the image signals from a reader unit is transmitted to plural image forming units for reproducing plural images simultaneously, through a signal transmitting unit. The signal transmitting unit has a function of synchronizing each image forming unit independently, in order to avoid the total failure or retarded operation caused by a failure in synchronization of one of the plural image forming units.

Abstract: An image processing apparatus, such as a copier or the like, in which the information concerning image processing, particularly the program for sequence control is stored in a non-volatile memory detachable from the apparatus.

Abstract: In image processing apparatus comprises image signal input means, variable magnification processing means for magnification-processing an input image signal inputted by the input means, and half-tone processing means for half-tone processing the image signal magnification-processed by the variable magnification processing means.

Abstract: An image processing system has, in a preferred embodiment a reader for reading an image of an original document, a page memory for storing at least one-page parallel image data, an encoder for compressing parallel image data from the page memory and generating the compressed image data onto a computer bus, a serial/parallel converter for receiving the serial image data from the reader and converting the data to parallel data to be stored in the page memory, and a transceiver for generating the parallel image data from the page memory without going through the decoder.

Abstract: There is disclosed an image processing system for storing image data obtained by reading an image and reproducing the original image by reading thus stored data. The data storage is conducted in compressed form to economize the memory capacity required for data storage.

Abstract: An image reading apparatus has a CCD for reading an original image, a standard white plate for providing a standard image signal, a control circuit for controlling light amount and temperature of a fluorescent lamp as a light source, a CPU for controlling the operation sequence of the overall apparatus, a RAM for storing a standard image signal corresponding to the standard white plate, a ROM storing a control program for the CPU, and a display for displaying an error. An image signal of an original read by the CCD is corrected in accordance with the standard image signal. For example, an average value of a block of four pixel image signals, for example, is calculated and is compared with an average value of the standard image signals obtained by reading the standard surface a plurality of times. An abnormal pixel signal is replaced with an immediately preceding normal pixel signal or a predetermined signal pattern.

Abstract: An image processing apparatus comprises an image reader for inputting image data, a memory for storing the image data, a read clock generator for generating a read clock to read out the image data from the memory and a write clock generator for generating a write clock to write the image data into the memory.The read clock generator and the write clock generator vary the frequencies of their respective clocks in accordance with a magnification/reduction factor.

Abstract: An image forming device constracted with an image forming device, a memory device to store therein a plurality of programs for stable control of an image quality, and a device for selecting and executing one of the programs stored in the memory device. The image forming device is further provided with a humidity detection device, a temperature control device, and a control device to effect potential control.

Abstract: An image processing apparatus having an input unit for entering image information, a setting unit for setting the processing conditions for processing the image information entered from the input unit, and a processor for processing the image information entered from the input unit according to certain processing conditions, wherein the setting unit is adapted to set numerical data included in the processing conditions in the form of variables.

Abstract: An image forming device constructed with an image forming device, a memory device to store therein a plurality of programs for stable control of an image quality, and a device for selecting and executing one of the programs stored in the memory device. The image forming device is further provided with a humidity detection device, a temperature control device, and a control device to effect potential control.

Abstract: An image formation apparatus has detection signal generator for generating an analog detection signal, reference signal generator for generating an analog reference signal of a reference level, A/D converter for converting the analog signal into a digital signal, and controller for causing the detection signal to be input to the A/D converter and putting out a desired control signal and for causing the reference signal to be input to the A/D converter and determining the then magnitude of the digital signal to thereby detect abnormality of the A/D converter.

Abstract: An image forming system has plural input devices for generating plural image data signals, and original image data signals by scanning an original, plural memories, plural output devices for reproducing the image of said original on a copying material, a first switch for storing the image data from either one or plurality of said input devices in either one of plurality of said memories, and second switch for releasing the image data from either one or plurality of said memories to either one or plurality of said output devices.

Abstract: An image information transmission system comprises a plurality of image information processing units for processing image information, an image information transmission line and a control information transmission line independent from the image information transmission line for transmitting control information related to the processing of the image information processing units. The control information can be transmitted even during the transmission of the image information.

Abstract: An image formation system has a plurality of devices which output image data such as an original reader or a general purpose computer, a semiconductor laser to record an image on a photosensitive drum, a sorter with bins to store the recording medium from the laser, an image memory control, and a sensor for sensing and storing the recording medium in a bin of the sorter corresponding to the original reader or the general purpose computer. The system is capable of sorting the output recording media in accordance with the original reader or the general purpose computer. The output recording media need not be resorted manually.

Abstract: A video signal processing apparatus for encoding video into binary signals employs dither coding. The apparatus comprises a device for setting a plural number of divided areas of an original image and a processing circuit for processing video signals corresponding to the respective divided areas using different dither patterns.

Abstract: An image forming apparatus capable of high-speed image formation on both sides of a sheet. After image formation on the first side, the transport path of the sheet is so changed that image formation can be immediately conducted on the second side of the sheet.

Abstract: A surface potentiometer comprises a measuring electrode, a chopper for intermittently shielding the electric field between the measuring electrode and an object to be measured, a preamplifier circuit for converting an AC signal induced in the measuring electrode into a low impedance signal, and a printed substrate having the wiring pattern of the preamplifier circuit formed on one surface thereof and the electrode pattern of the measuring electrode formed on the other surface thereof.

Abstract: Image forming apparatus includes a feeder unit feeding a recording member, processing devices forming an image on the recording member, an input and output device having a port selectively usable for data input and output, a selector device for determining whether the port of the input and output device is used for data input or output, an instruction device connected to the input and output device and supplying enable instructions to the feeder unit and processing devices, and a display connected to the port and interrupting a normal display to display indications corresponding to the signals appearing on the port in response to the selector device determining that the port is used for data input.

Abstract: A surface potential measuring meter and an electrostatic recording apparatus are disclosed. The surface potential measuring meter detects the surface potential on an object to be measured as AC signal. The electrostatic recording apparatus is provided with the surface potential measuring meter to measure the surface potential of an electrostatic latent image formed on a recording medium in the apparatus. The outputs from the meter are used to control various conditions for forming images with the apparatus.

Abstract: An image forming apparatus which includes a display device for displaying a numerical value related to the number of image formation operations is also capable of displaying a measured or calculated value associated with the operating condition of the image forming apparatus.