Abstract: An image forming apparatus includes an image bearing member for bearing an image, a contact charger for charging the image bearing member, and a detector for detecting an electric current flowing through the charger when the charger changes a potential of a predetermined area of the image bearing member from a first potential to a second potential which is different from the first potential. In another aspect of the invention, the detector detects a flow of current through a second contact charger when a first oscillating voltage is applied by a first contact charger and a second oscillating voltage applied by the second contact charger which is different from the first oscillating voltage.

Abstract: A buckle for a watch band has a housing connected to the watch band, a pair of push plates provided in the housing so as to be moved in a lateral direction, and a pair of springs for urging the push plates. A pair of stopper pins are provided for stopping the push plates urged by the springs. A cover having a lock pin is pivotally connected to an end of the housing. The cover is provided such that the lock pin is inserted into an opening of the housing and engaged with hooks of the push plates. An opening spring is provided between the housing and the cover for urging the cover to an open position.

Abstract: A charging device includes a charging member contactable to a member to be charged. A bias source includes an AC source and a DC source and is effective to apply a bias voltage to the charging member. The bias voltage is provided by a superposing a constant current controlled AC voltage and a constant voltage controlled DC voltage. When a DC voltage is applied between the charging member and the member to be charged, the following equation is satisfied..vertline.(applied voltage V)-(charge voltage V.sub.D of the member to be charged).vertline.=.vertline.(charge starting voltage V.sub.TH).vertline..The charge starting voltage is a DC voltage at a level which the member to be charged starts charging when only a DC voltage is applied between the member to be charged and the charging member. When the above relationship is used in the AC voltage application, the charge voltage V.sub.D oscillates in the charge region with a center of DC voltage V.sub.DC.

Abstract: A tapping function is imparted to a microjoint separation apparatus in order to obtain uniform cycle time and to improve productivity. The apparatus includes: grips (6) for moving a workpiece (2) in the X-axial direction of the main body (1) of the apparatus; a hammer (30) and a tapping unit (40) provided on the main body (1) and movable in a Y-axial direction perpendicular to the X-axial direction; an NC device (35) for positioning tapping point and hammering point of the workpiece (2) by moving the grips (6), the hammer (30) and the tapping unit (40) in X-Y axial directions; and cradles (31, 32) for selectively supporting a lower portion of the workpiece (2) during the hammering operation and the tapping operation.

Abstract: Method and apparatus for recording information on an opto-magnetic recording medium by applying an A.C. magnetic field of a constant frequency to the opto-magnetic recording medium as a recording bias magnetic field and scanning the medium by a light beam modulated with a recording signal in synchronism with the A.C. magnetic field to record the information.

Abstract: There is disclosed an image processing system capable of effectively utilizing a large-sized display unit by expanding the image signals to be displayed.

Abstract: An optomagnetic (magneto-optic) information reproducing or readout method including illuminating an optomagnetic (magneto-optic) recording medium with a linearly polarized light flux whose quantity is variable, detecting the value of the illumination flux from the recording medium through an analyzer, determining a threshold quantity of light at which the ratio between the detected value and the quantity of illumination light starts to deviate from a predetermined value, and scanning the recording medium with the linearly polarized light flux whose quantity is smaller than the threshold quantity of light, thereby reproducing or reading out the information stored on the recording medium. A device adapted to carry out the above-described method is also described.

Abstract: There is disclosed an image processing system composed of a network of plural stations, in which the transmitted image signals can be monitored on real time basis, always utilizing the full image display area and without lack in the displayed image, by suitably converting the image signals.

Abstract: An image information recording system reads image information out of a microfilm of which a plurality of image information items are recorded and records it onto a photodisk device. The microfilm has a Blip Mark indicative of the position of a frame. The mark is detected and index information for representing the address of image information recorded on the photodisk device is calculated. In another aspect, the recordable capacity of the photodisk device is sensed. As a result, when one unit of frames of image information is detected to be more than the photodisk device can hold, the one unit of image information is re-recorded on a second recording medium.

Abstract: An image processing system has an original reader or an image file for generating an image signal, a soft display, a high-speed printer, a small printer, a work station with a CPU, and a switching device. An image can always be displayed or printed at the center of a display surface or of a recording medium irrespective of a difference in the image and the display surface or recording medium.

Abstract: An image display apparatus includes a first image carrier along with an apparatus for inputting an image signal. An erasable image is formed on the first image carrier in accordance with the image signal input from the image signal input apparatus. A display area displays the image formed on the first image carrier. A second image carrier, which is associated with the first image carrier, contains a visible image which is photoelectrically read and converted to an image signal. The visible image carried on the second image carrier is automatically erased after the visible image is converted to an image signal.

Abstract: There is disclosed an apparatus for reading a microfilmed image for image reproduction on a hard copy or the like. The operator can designate the area of image to be read, thus enabling exact image reproduction without loss of image or without unnecessary margins.

Abstract: An image processing system transmits image information in the form of electrical signals among plural stations for processing. A switching unit is provided to supply plural sets of signals to the plural stations in a parallel manner, thus achieving efficient signal transmission.