Minolta Camera Kabushiki Kaisha

Atsuyuki Tanaka

Shozo Kaieda

Nobuaki Nishioka

Yukio Tadauchi

Masaaki Nishiyama

Hiroaki Kojima

Hidekazu Nakagami

Tokuzi Kakiuchi

Susumu Tanaka

Masaaki Oyabu

Hiroshi Hamaguchi

Tokuji Kakiuchi

A character signal generator which is capable of processing a large amount of data at a high speed without increase of the load of software and also capable of effectively using the storing region of text buffer by employing the circuit structure that the character codes to be output are continuously written on the text buffer and the row end code is written at the end of each row, thereby when this code is detected, the counting operation of address counter is suspended.

Character signal generator

Disclosed herein is a character generating device of a raster scan system which comprises a region data storage means for storing display region data predetermined with respect to each of the character codes and a region counter which is set by the display region data. The region data storage means and the region counter are correlated with each other, whereby the dot output is counted by the region counter for generating a signal to output the next character when the count value reaches a set region datum value.

Character generating device

A data processing system wherein one of a number of central processing units writes a command for data transfer to it from a second processor over a data bus to a common memory and a digital code to an interrupt table, the code indicating interruption of the second processor. Decoding apparatus responsive to the digital code causes the second central processor to read the command for data transfer from the memory and transfer data to the first central processor.

Apparatus for direct data transfer among central processing units

A computerized information-processing system including a copying machine operatively associated with a computer having a data storage apparatus having a plurality of memory locations wherein the copying apparatus is capable of reading a coded pattern on an original placed on the copying machine and for generating an instruction input to the computer for reading data from selected memory locations, and apparatus, responsive to data received from the computer from the memory locations, for imprinting, at preselected locations on copying paper passing through the copying machine, information represented by such data to correspond to locations on the original sheet as it is being copied on the copying paper. In addition the copying machine has a sensor for reading markings placed on the copy containing the copy of the original and the imprinted data for producing instructions to the computer to modify selected data in selected memory locations.

Computerized information processing system equipped with copying

Disclosed herein is an electrostatic recording apparatus which comprises:

Electrostatic recording apparatus

An image information output apparatus which includes a circuit for setting conditions for a '0' or a '1' level in an X direction, a circuit for setting conditions for a '0' or a '1' level in a Y direction with respect to each of respective image units over an entire output image plane divided into an X-Y matrix configuration, a circuit for generating an output timing signal for each of the image units, an AND circuit for ANDing two signals so as to output conditional signals at every generation of the output timing signal for each of the image units, one conditional signal being related to the X direction condition setting and one conditional signal related to the Y direction condition setting, a circuit for storing image information, and a circuit for outputting the stored image information, one image unit by one image unit, for each '1' level output signal of the AND circuit.

Image information output apparatus

An improved image reading apparatus which is so arranged that, by providing marks shaded to a predetermined density or darkness for setting a required reading area on an image reading surface, the start mark and end mark are detected by a solid state image sensor for supplying image signals within the required reading range into memory unit based on results of the on detection so as to reduce the memory capacity of the memory unit.

Image reading apparatus

An automatic information retrieval device employing an information-containing film wound on reels housed in a cartridge, which retrieval device is provided with a servo system for driving one of the film reels by a servo-controlled motor and the other of the film reels by a one directional constant torque motor so as to apply proper tension to the film between the reels for rapid and accurate selection of a desired information frame of the film without disengagement of the film ends from the reels. The retrieval device further employs an information film having counting blip-marks, parity check marks and non-light transmitting portion for accurate positioning of the desired frame.

Automatic information retrieval device

An apparatus for automatically issuing an identification card, such as a commutation ticket, airline ticket, credit card, driver's license or the like, which has information forming means having an information storage device for electromagnetically storing a coded information to be described on a web of paper to provide the identification card, a keyboard arrangement having a plurality of keys corresponding to the contents stored in the information storage device, a control device for selecting items from among the contents stored in the information storage device by operating the keyboard arrangement, and an information compiling device for compiling all of the coded information selected by the keyboard arrangement into a video signal information, a copying unit including a photoreceptor drum having the outer peripheral surface adapted to bear a latent image and an optical fiber tube which converts the video signal information into rays of light carrying the respective images of the coded information. The rays of light emitted from the optical fiber tube are projected onto the photoreceptor drum to form an image thereon, which image is electrostatically transferred onto the web of paper.

Identification card issuing apparatus

An image transmission means for employment in a photocopying machine wherein a document to be copied is scanned and image-wise light reflected therefrom is directed onto a photosensitive medium which is moved at a speed equal or proportional to the document scanning speed. The image transmission means comprises an image-transmitting light-conducting fiber array which transmits image light reflected from a document onto a photosensitive medium, and is so mounted that photosensitive medium portions which are less exposed due to characteristic variation in light transmission efficiency of different portions of the fiber array are disposed longitudinally with respect to the document image. Illumination of a document is provided by one or two tubular alternating current fluorescent lamps which are actuated to provide illumination which varies at a frequency and to a proportion that are selected with reference to the characteristic variations of different portions of the light-conducting fiber array. On the photosensitive medium, and hence on a subsequently produced document copy, variations due to alternation of document illumination occur transversely with respect to the image of the scanned document; that is at right-angles to the variations due to light-conducting fiber array characteristics. There is thus produced an image constituted by mesh portions.

Image transmission device for slit scanning type photocopying machine

A slit exposure scanning type electrophotographic copying apparatus has an optical system enclosed in an optical frame within which a light source for illumination, an image transmitter formed by a bundle of optical fibers of graded refractive index, and other associated elements are secured in predetermined relative positions with the optical frame urged to engage a movable or stationary transparent platform for placing an original to be copied for easy focusing and positioning adjustments in assembling the copying apparatus. The concept of the optical frame is applicable both to a copying apparatus with a moving platform and a stationary optical system, and one with a stationary platform and a moving optical system irrespective of whether it is a wet-copying process type or dry-copying process type.

Electrophotographic copying apparatus

An image-transmitting light-conducting fibre array made up of fibres each of which is a rod-like member which is made of a transparent material, is drawn to a required diameter, and is subjected to a process to impart thereto an outer periphery comprising a multiplicity of indented portions and protuberant portions, and a coating of light-adsorbent material, which is retained in and fills said indented portions of said outer periphery of said rod-like member.

Image-transmitting light-conducting fibre array

An illumination means for use in association with a SELFOC image transmitter in a photocopying machine. The illumination means comprises at least one light generator in the form of a tubular fluorescent lamp or similar means emitting light through a slit disposed parallel to the longitudinal axis thereof, and an associated light-guide which is made of glass, plastic, or other material having a high refractive index, is generally equal in length to the light-generator, has a generally trapezoidal cross-section, and directs light emitted by the light-generator into an illumination slot or shutter means provided in or below a document rest for illumination of successive portions of a document to be copied, the light-guide broad base and narrow base being proximate to, in line with, and generally equal in width to the light-generator slit and the document rest slot, respectively. Preferably the sides of the light-guide are coated with a reflective film, and a certain area of the central portion of the base thereof may be coated with a reflective patch to eliminate extra light, and so counteract the characteristic tendency of a tubular lamp to produce a greater quantity of light at the centre. The means of the invenion presents the advantages that there is an even distribution of light for illumination of documents to be copied, that there is less consumption of electricity and less generation of heat, and that the means consists of unitary elements which may be easily assembled.

Illumination means for use in photocopying machine

A display unit equipped with a copying device. The display unit has a double-sided display panel secured at the front of unit housing, a light shield film movably provided behind the display panel in parallel and spaced relation to the latter, a guide plate for a photosensitive copy paper sheet fixedly provided behind the shield film, and associated devices for developing the copy paper sheet. The shield film has a compact exposure member of image transmitters formed of a plurality of graded index fibers in bundled configuration which can advantageously direct, when desired, the image rays at the back surface of the display panel onto the copy paper sheet while the same images are being observed with the naked eye at the front of the panel.

Display unit equipped with copying device

An illumination device for use in a copying machine of a type wherein the optical system comprises an image transmitter formed by a bundle of optical fibers of graded refractive index. The illumination device comprises a halogen vapor lamp housed in position within a casing forming a reflector and a pair of ventilation fans arranged adjacent both ends of the casing for simultaneously blowing and exhausting air into and from the casing to cool the halogen vapor lamp within the casing. The ventilation fans are reversible in operation.

Growing community of inventors

Sakai, Japan

Atsuyuki Tanaka