• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1491276 Feeding sheets XEROX CORP 29 Oct 1975 [13 Feb 1975] 44598/75 Heading B8R Documents to be copied are fed to the exposure plate 12 of a xerographic copier either (a) at a constant speed to and over the platen, or (b) at a speed greater than said constant speed into contact with registering stops 82, being removed after retraction of the stops. When a switch 72 is set to mode (a), a clutch 70 disconnects a continuously operating motor 68 from a shaft 74, and power is supplied to a servo amplifier 50 which, in response to signals from a tachometer 56 rotating with a servomotor 46 and from a sensor 58 measuring the speed of the xerographic drum 10, drives the servomotor in synchronism with the drum, and the servomotor drives a document feeding belt 32 or roller feeder. When the switch is set to mode (b), the motor 68 drives the belt at a higher speed through an over-running clutch 66, and the optical exposure system is also moved to scan the document while held by the stops 82.
    公开号:SU776580A3
    申请号:SU762313403
    申请日:1976-01-14
    公开日:1980-10-30
    发明作者:Бар-Он Ари
    申请人:Ксерокс Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

     , (54) COPY APPARATUS
       Lable refers to the printing technique, in particular to copiers.
    A copy machine is known, which has an obtrusive record carrier, exposure units, manifestations, and iso-transfer. milling and attaching, cleaning the surface of the recording medium, the drive for moving the original and the optical system and the mode switch M. ; ..:; -; - -:; :::. ;; ::: .. h: a -: ,,:,
    This unit cannot provide reliable dual mode of operation.
    The aim of the invention is to ensure the dual mode of operation of the copying machine. -,
    This goal is achieved by the fact that the actuator for moving the original and the optical system has a servrdvig. - 20 barrels, for synchronization in different locations. The work of the original and the optical system with a carrier. Records, and the servomotor uses a control circuit with a rotator of operation modes 25.
    FIG. 1 shows a portion of the proposed copier. Vertical view; in fig. 2 -. scheme ftp-, documents and its management; on
    FIG. 3 - the free-flow coupling used in the invention. .- ... ,,. ,,,
    The copier contains an image transfer unit on the copy paper and its fixation with a photodynamic surface, made; Noah in the form of drum 1, with frt; ; ./;, a conductive layer or a superimposed surface on the wire to the substrate. (not shown), and the drum lye-. mounted in a frame with the possibility of vra-. in the direction indicated by the arrow. Behind the drum 1, the following types of treatment can be carried out sequentially: on Poitsy 2, a uniform charge of static charge is deposited on the surface; on stations 3 on nOBepJtHocTb, projecting a light pattern of octopusable COPIES, scattering yards on the exposed areas, forming a skewed electrostatic y, the image of the copies obtained; at poytyyi 4 - occurrence} at position 5 perebbs, in which the powder is electrostatically transferred from the surface of the drum 1 to the copying paper on the POSITION b - the surface b. The copier also contains a recording medium consisting of a prepbed Hbro table 7, installed in the slit of the exposure 8; A copied document is located on the table 7, which is illuminated by the lamp 9. To project the light images 7 outgoing from the object by Joria on the surface of the drum 1, it is provided to the optical system - an objective mirror 10, a lens 11, a 12-mirror and a slit of the light curtain 13 The paper on which it is to be formed from the mine, preferably in the form of a roll, is stored in the housing 14, and an endless belt 15 is provided for transporting it. To remove the finished copy from the drum 1 there are belts 16. and 17 that feed the copies to the receivers drum 18. The record carrier contains an endless belt 19 with a leading 20 and supporting rollers 21 mounted rotatably in a cover 22 with walls 23 and 24 covering the small stage 7. The cover 22 is suspended at a point 2.5 with a possibility of lifting to skip a document of any format. The drive roller 20 is mounted on the inlet 26, kinematically connected with the servomotor 27 (Fig. 2), for control of which a sensitive and control system 28 is provided, comprising a servo amplifier 29 fed via a conductor 30 from an energy source (not shown) and connected servomotor 27 conductor 31 for driving it. Servo amplifier 29 includes a known comparison circuit (not shown). In order to generate a signal indicating the speed of the servomotor 27, a tachometer 32 is connected to the comparison circuit of the servo amplifier 29, which is connected so that it is brought directly by the servo motor 27 ... To measure the speed of the drum 1, there is a speed sensor 33 connected by a conductor 34 to a servo amplifier 29 to send a signal to the comparison circuit of the servo amplifier 29. The speed signals OT of the conductors 35 and 34 are compared. In the preferred embodiment of the invention, the speed sensors are magnetic and are arranged so as to react to the passage of the teeth of the gear 36 of the drive drum 1. The rotor of the servomotor 27 is connected with a spindle shaft 37, on which is mounted a freewheel 38 of the type shown in FIG. 3, For a drive with a high speed belt 19 in the E) hedge lockable document - movable optics through the freewheel 38 and the servomotor 27 provides another more powerful motor 39, for example, AC. The clutch 38 and the motor 29 are coupled with an electromagnetic clutch of the clutch 40, the latter being able to be controlled by a manual mode selector switch 41 by means of a circuit 42 so that the motor 39 is coupled and disengaged with the freewheel 38. The freewheel 38 is mounted on the shaft 37 and is an annular shaft which is connected to the servomotor 27, the shaft 43 abutting the shaft 37 and connecting the motor 39 with the clutch 40. Between the shafts 37 and 43 there are a plurality of balls or rollers 44 which are held in the groove 45, besides Each of the 44 ra rollers is located near the wedge-shaped bevel 46. The copier also has registration gates 47, which can be placed either in the lid 22 with the possibility of extending down the document path or under the top of the lid 22 (Fig. 1). In the described invention, to obtain undistorted copies of documents, the speed of the xerographic surface of drum 1 may be related either to the speed of movement of the original document in the moving document mode — fixed optical system (10, 11, 12) or the speed of the optical system in fixed document mode — mobile optical system . Copier works as follows. If we assume that the device has been started up and the operator wants to choose the first mode of operation: the moving document is a fixed optical system, it switches the mode selector switch 41 to position I (FIG. 2), in which the electromagnetic clutch 40 will be unlocked and the engine 39 will idle . , the other corresponding nodes ai ipaTa are controlled through the corresponding circuit 42 due to the operation of switch 41 in position I. For example, registration gates 47 will act 6e3f and move out of the way e (kkmenta, copy cutting circuit off | 1en, optical system 10, 11 and 12 is permanently fixed, and energy is supplied to servoamplifier 29 via conductor 30. Servoamplifier 29 receives speed signals from sensor 33 via conductor 34 and conducts this amount of energy to servomotor 27 in order to drive an endless belt 19 with a constant If the endless belt 19 starts moving with a speed different from the speed of drum 1, the signal indicating this will be transmitted from tachometer 32 through conductor 35, and this signal and signal from sensor 33 are compared in servo amplifier 29, which regulates the power supplied to the servomotor 27 through the conductor 31, respectively, change the speed of the servomotor 27 in order to maintain identical speeds of the endless belt 19 and the drum 1. After that, the key of the document 22 serves the original document, the last pass, and this to the drum 1 is constantly transmitted to the fixed optical system 10, 11 and 12 image.
    If it is required to switch to the second mode of operation: a fixed document - a movable optical system, the selector switch 41 is turned to position ii. In this position, the circuit shuts off power from the servo amplifier 29, includes a copy cutting circuit and registration gates 47, an optical drive mechanism 10, 11, and 12, as well as a coupling 40. Since the coupling 40 is engaged, the previously existing high-speed AC motor 39 will drive the shaft 43 at the same high speed (fig.Z, in the direction of the solid arrow), causing the seizure of the rollers 44 and bevels 46, and drive the shaft 37 and idling the servomotor 27 through the freewheel coupling 38. Ta they way be carried out high-speed drive endless belt 19.
    Documents may be submitted under cover 22, where they are transported at high speed to registration gates 47. A certain position of the copied document may be perceived by appropriate means, such as photoelectric, so as to disengage clutch 40 and stop the endless belt 19 and force the optical system 10, 11 and 12
    move to copy a new fixed original document as many times as necessary to make copies.
    Upon completion of the copying of the document, registration gates 47 are moved away from the path, clutch 40 is turned on, and endless belt 19 will be driven at high speed to release the copied original document, and the new document will be sent to the stage 7, and the process will be repeated.
    The presence of a servomotor for synchronization in various modes of operation of the original and the optical system with a record carrier provides a reliable dual mode of operation of the copier.
    20
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    A copying machine comprising a recording medium, exposure units, display, image transfer and fixing, cleaning the surface of the recording medium, an actuator for moving the original and an optical system, and a mode switch, which, in order to provide dual-mode operation, move the original and the optical system has a servomotor for synchronization in different modes of operation of the original and the optical system with the recording medium, the servovigatel being connected through a control circuit with a switch elem modes.
    Sources of information taken into account during the examination 1. Patent SYL SV 3062108, cl. 355-8,
    publish 1962.
    7c
    7
    2G
    20
    33
     29
    FIG. 2
    37
    45
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    同族专利:
    公开号 | 公开日
    FR2300680B1|1979-07-13|
    JPS5194831A|1976-08-19|
    FR2300680A1|1976-09-10|
    AU8710675A|1977-06-02|
    NL7514600A|1976-08-17|
    JPS5918700B2|1984-04-28|
    DE2555115A1|1976-08-26|
    BE837235A|1976-04-16|
    US4000943A|1977-01-04|
    SE7514705L|1976-08-16|
    ES443937A1|1977-08-16|
    GB1491276A|1977-11-09|
    CA1060532A|1979-08-14|
    SE414236B|1980-07-14|
    IT1054711B|1981-11-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3468408A|1967-09-11|1969-09-23|Ermanco Inc|Multi-speed conveyor|
    US3482676A|1968-01-17|1969-12-09|Xerox Corp|Document feed belt|
    US3674363A|1968-06-10|1972-07-04|Xerox Corp|Sheet feeding apparatus|
    US3820893A|1970-11-16|1974-06-28|Xerox Corp|Synchronizing apparatus|
    US3768904A|1972-05-17|1973-10-30|Xerox Corp|Printing apparatus including registration control|
    CA1004724A|1972-08-29|1977-02-01|Xerox Corporation|Exposure apparatus|
    US3909128A|1973-08-31|1975-09-30|Xerox Corp|Control logic for changing a multi-mode copier/duplicator from one mode to another|US4081213A|1976-04-29|1978-03-28|Xerox Corporation|Fuser drive system|
    CA1101049A|1976-12-25|1981-05-12|Masao Kono|Electrostatic copying machine|
    JPS53137149A|1977-05-06|1978-11-30|Olympus Optical Co Ltd|Zerographic apparatus|
    US4190350A|1977-08-30|1980-02-26|Donohue James J|Distributed microprocessor control system for a copier/duplicator|
    GB1604761A|1977-08-30|1981-12-16|Xerox Corp|Control systems for a copier-duplicator|
    US4194837A|1977-12-02|1980-03-25|Ricoh Company, Ltd.|Original feed apparatus for electrophotographic copying machine|
    US4215931A|1978-04-18|1980-08-05|Olympus Optical Co., Ltd.|Electrophotographic apparatus|
    US4218735A|1978-10-05|1980-08-19|Minnesota Mining And Manufacturng Company|Digital motor control system|
    US4268022A|1979-08-30|1981-05-19|Xerox Corporation|Conforming document aligner|
    US4386842A|1980-12-04|1983-06-07|Xerox Corporation|Programmed acceleration|
    US4457506A|1981-09-16|1984-07-03|International Business Machines Corporation|Servo-controlled automatic document feeder|
    US4391505A|1981-10-19|1983-07-05|Xerox Corporation|Over-platen document registration apparatus|
    US4416534A|1981-11-05|1983-11-22|Xerox Corporation|Apparatus and method for registering copy sheets in a variable pitch reproduction machine|
    IT1145600B|1981-12-21|1986-11-05|Olivetti & Co Spa|ORIGINAL SCANNING DEVICE FOR COPIERS WITH VARIABLE MAGNIFICATION REDUCTION RATIO|
    US4485949A|1982-08-23|1984-12-04|Xerox Corporation|Controlled frictional feeding of computer forms web|
    US4526309A|1982-09-13|1985-07-02|Xerox Corporation|Compatible copying of computer form documents|
    US4684240A|1984-03-16|1987-08-04|Xerox Corporation|Document scanning drum and flash exposure copier|
    US4579444A|1984-12-06|1986-04-01|Xerox Corporation|Document registration system|
    US4785325A|1987-11-16|1988-11-15|Xerox Corporation|Adjustable speed control for a document imaging system|
    JPH035293A|1989-06-01|1991-01-11|Yamaha Motor Co Ltd|Oscillation restraining structure of hull|
    US4961090A|1989-08-03|1990-10-02|Xerox Corporation|Large media proportional copying system|
    US5506658A|1992-06-15|1996-04-09|Minolta Camera Kabushiki Kaisha|Sheet feeding apparatus and automatic document feeder|
    GB9824162D0|1998-11-04|1998-12-30|Rue De Int Ltd|Sheet transport system|
    JP4674518B2|2005-09-29|2011-04-20|ブラザー工業株式会社|Image recording device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/549,684|US4000943A|1975-02-13|1975-02-13|Two speed, duel purpose document handling system|
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