KR830001526B1 - Electrophotographic photocopier - Google Patents

Abstract

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Description

Electrophotographic photocopier

1 is a schematic diagram of an electrophotographic copy machine assembled and constructed in accordance with the present invention.

2 is an exploded view of the outer cabinet of the electrophotographic photocopier of FIG.

3 is a cross-sectional view of the electrophotographic copier of FIG. 1 showing three modules.

4 is a perspective view of the mechanical assembiy module described in FIG.

5 is a perspective view of the optical component assembly module described in FIG.

6 is a perspective view of the toner component assembly module described in FIG.

The present invention relates to an electrophotographic copying machine. In general, an electrophotographic copying machine includes an electrophotographic member which is conveyed through several stations, each of which performs a function of a reproduction process. The electrophotographic member is composed of a drum, plate or endless belt. An endless belt type electrophotographic member mounted on a roller that exposes the belt on an original to be copied at a position where the endless belt is in a flat state can be used for speeding up.

In general, the work station includes a charging (chargimg) station in which uniform charging acts on the photosensitive surface of the electrophotographic member, an exposure or image station where the charging photosensitive surface is exposed to an optical image of a copy document, and developed by electrostatic latent image, The phenomenon that the electrostatic spot image is developed by using the fine charged toner particles attached to the photosensitive surface by the electrostatic latent image, or the toning station, or the transferred image where the developed image is transferred to a second medium such as paper The Sean and the transferred image are composed of a fixing station which is fixed to the second medium.

Some copiers include an additional work station, such as a cleaning station, which removes residual toner from the electrophotographic member before reuse, while another copier omits one or more additional work stations. . As an example, an image is fixed to an electrophotographic member to which a transfer station is omitted and finally copied.

However, no attention or attention has been paid to the overall structure assembly of the copier.

Each functionally operated work station is a member that is individually fixed to the basic frame of the copier or to some structure mounted on and supported by the copier and assembled together with the other members. In the case of providing a copying machine for collecting and assembling several individual parts, it is necessary to perform final assembly at the original mounting position of the copying machine. And once assembled, the mandatory service of skilled servicemen at the installation site was essential. Thus, such assembly has resulted in significant cost as well as time delay in repair. Repair work must be carried out at the site and it is not possible to disassemble the fault to be moved centrally to organize during the repair of the copier and to install and remove replacement work. While the repair is delayed or while waiting for repairs, the chest time is quite disadvantageous.

Accordingly, there is a significant need for a basic modular copy machine, which is composed of several units or modules that can be assembled and installed in advance to manufacture a copy machine.

Such types of copiers not only reduce the cost of fabrication and installation, but also eliminate the need to actually assemble a function or work system at the installation site when assembling the various components required for installation. In addition, by installing a modular device, a defective module can be replaced by a module operating properly at the installation site, thereby simplifying the repair with the lowest waiting time. Faulty modules can be shipped to a service center rather than being serviced by a serviceman. Even a person who operates this machine can attach a module device. Copiers are developing rapidly with the development of special new functional work systems. The modular system is an improved functional system that can replace an already installed machine and extend the shelf life of the copier. Module systems of this type are practical and have not been developed to their advantage.

Accordingly, the present invention provides the following electrophotographic copying machine used for copying an original. That is, the copier has a mechanical component assembly module detachably mounted to an outer cabinet assembly, an electrophotographic member that continuously transfers through a charging station, and an electrostatic latent image applied to the charging member to cause the electrostatic latent image to appear on the electrophotographic member. Image forming station An electrophotographic copier comprising an toning station constituting an image of an electrostatic latent image and an optical component assembly for imprinting an image on a charged electrophotographic member, wherein the electrophotographic member, the charged station and the image forming station The shauns are all composed of seif-contained mechanical assembly modules, the optical components assembly is also composed of magnetic modules, and the toning station is composed of magnetic modular assemblies assembled within the mechanical assembly. It is characterized in that the integral module is detachably mounted as a unit in one external cabinet.

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 shows an electrophotographic copying machine 10 manufactured according to the present invention. The copier 10 is a quadrangular box shape for holding the components of the copier 10 and has an upper cabinet 14 having a quadrangular frame shape in which a lower cabinet with an open upper surface and a copy original glass 16 are mounted. It is composed. The platen cover 18 is located on the platen 16 and is equipped with a pivot turning movement as a second degree. The paper feeding device 20 and its access cover 22 are located on the right side of the document cover 18 as in the first diagram. The adjustment box 24 is located next to the pivot of the document cover 18 adjacent to the cover 22. The adjustment box 24 has various switches, timers, and electronic accessories for the copier 10. As shown in FIG. The copy receiver 25 is located at one end of the lower cabinet 14 and is equipped with its control panel.

As for the operating member of the copier 10, as shown in Figs. 3 and 4, the mechanical component assembly module generally indicated by 26, the optical component assembly module indicated by 28 and the detachably mounted toner shown by 30 Three magnetic modules composed of (Toner) assembly modules are shown.

The mechanical component assembly module 26 includes electrophotographic belts 32 supported on rollers 34 and 36, which are uniformly positioned by guide rollers 38, each of which is a rectangular frame member ( 40 is supported for rotational movement. The support roller 34 is connected to a drive motor 41 which acts as a drive roller and may be mounted to the frame member 40.

A paper feeding device 42 is mounted on the upper end 44 of the frame member 40, and the corona generating device 46 is applied to the rollers 34 and 36 to apply a static charge to the belt 32. It is mounted on the parallel frame 40. The transfer pressure roller 48 is mounted to a bracket 50 mounted to the frame 40 and mounted to the brace 52. The transfer pressure roller 48 causes the toner image formed on the belt 32 to be transferred to the paper to be co-elongated by the long airway device 42.

The optical component assembly module 28 extends outwardly in the opposite direction at an angle of 45 ° from the top of the basket-shaped member 54 having the bottom wall 56, the pair of connecting walls 58 and the bottom wall 56, respectively. It consists of a pair of end wall 60,62. The planar mirrors 64 and 66 are mounted on the inner sides of the end walls 60 and 62, and the basket-shaped member 54 has a partition 68 vertically arranged from the bottom wall 56 to the upper silver, The lens system 70 is mounted to the partition 68. A pair of lamps 72, 74 and a reflector 76 are attached to a basket-shaped member 54 adjacent to a notch 80 formed in the connecting wall 58. A well 82 is positioned in the notch 80 to receive the toner assembly module 30 that traverses the lateral top surface of the basket forming member 28 and the opposite end 84 of the reservoir 82. Extends inwardly from the basket-shaped member 28.

The toner assembly module 30 is slidably mounted in the reservoir 82, has a rectangular box 86, and the idealist 86 stores a large amount of liquid toner 88. As shown in FIG. The air rollers 90 are mounted in a box 86 in contact with the upper wall 89 with slots. The front wall 92 of the box 86 has a window 94 for viewing the liquid level of the liquid toner 88 therein, and the top wall 89 with the slots 63 is arched. It is shaped and has the same radius of curvature as the roller 34.

When the reservoir 86 is installed, the valley 100 is defined between the roller 34 and the wall 89.

When assembling the module to the copier 10, the optical component assembly module 28 is first inserted into the lower cabinet 12. The mechanical component assembly module 26 is then placed in a suitable position on the optical component creep matrix. The toner assembly module 30 is then inserted into the copier 10 via an opening defined by notches 96 and 98 in the lower cabinet 12 and the upper cabinet 14, respectively, to store the reservoir 80. It is arranged slidably within.

The mechanical component assembly module 26 is located on an optical component assembly module having a frame on the reservoir 82 and a basket-shaped member 54 flange 55, where the appropriate members, such as pins and holes, are placed in the basket-shaped location. In order to hold | maintain a member, it is provided in the bottom wall 56 of the basket-shaped member 54, and the board | substrate 106 of the cabinet 12, respectively.

It can be seen from the structure of the present invention that each module is configured in a magnetic field so that it can be assembled as one unit at one place and can be installed as one unit at the installation place of the copier. Each module can be easily removed from the assembly for repair or replacement and replaced with another improved assembly.

The copier 10 is operated in a conventional manner, and the original to be copied is placed on the glass portion of the copy glass 16 and covered with the copy glass cover 18. Activate control box 24 to start the operating cycle.

The belt 32 is driven clockwise by the rollers 34 and 36 during the time required for the corona generating device 46 to be excited to support the belt 32 through it. Is applied to the belt 32.

At this time, the charged portion of the belt 32 is transferred to the exposure station located between the rollers 34 and 36, and the lamps 72 and 74 are moved so that the image of the document D is moved to the lens system 70. Through the projection from the plane mirror 64 to the plane mirror 66 and to the inside or contact surface of the charged belt 32. When the projected image of the document D is applied to the charging portion of the belt 70, the electrostatic latent image is formed in the charging portion by selective discharge of the belt, and is exposed for a sufficient time to form the latent image. After exposure, the belt 32 having a latent image is transferred through the toning station, which is developed by the liquid toner 88 when passing through the gap between the roller 34 and the wall 89.

At this time, the position of the belt 32 having the developed image is moved to the gap 100 slotted in the upper wall 102 of the transfer station. In the transfer station, when the paper sheet passes between the rollers 36 and 48, the image developed on the sheet is transferred.

The paper sheet with the developed image exits from the copier 10 through the opening 95 falling into the copy receiver 25.

As in FIG. 2, the wall 102 of the lower cabinet 12 extends outwardly of the opposing wall 104 of the cabinet 12 and the wall 104 is taller than the wall 102 and the wall ( A space is formed inside the 102 and the substrate 106. The wall 102 and the base wall or the substrate 106 are made of one metal, and the cabinet 12 is supported by the block 108 as shown.

The upper cabinet 14 constitutes a side 110 having a length substantially equal to the wall 102, the side having a longitudinal lip 114. The platen glass 16 is located on a suitable bridging flange 115 configured as part of the upper cabinet 14.

The bridged end wall 116 of the cabinet 14 is disposed between the walls 104 of the cabinet 12 with the lower end of the portion 110 of the cabinet 14 located at the upper end of the wall of the cabinet 12. have. Notches 94, 96 are arranged to provide an inlet to toner assembly module 30. The platen cover 18 is connected to the U-shaped member 116, and its free arm 118 can be positioned on the tip 114, by the access cover 22. The mechanical component assembly module and the optical component assembly module are installed in an area 14 closed by the cabinet 12 and the access cover 22 is located on the lip 114.

Receiving 25 includes a lip 120 that slips on top of cross-linked wall 104 of cabinet 12 at a location to receive the finished copy from the transfer station.

Appropriate fastening members such as screws, snaps, pins and holes, latches and the like are provided to mount the assembled cabinets and modules as required. When the module and the cabinet, etc. to assemble the copier 10, no adjustment is necessary. The integral components of each module are each in a suitable arrangement so that the copier 10 is ready for operation when the cabinet and modules are assembled.

This means that it is the same magnetic type as used in the module.

Claims (1)

Magnetically machined mechanical component modules detachably mounted within the outer cabinet assembly, electrophotographic members arranged for continuous transfer through the charging station, electrostatic latent images to the electrostatic member to generate an electrostatic latent image on the electrophotographic member. An electrophotographic photocopier for manuscript copying comprising an image forming station to be applied, a toning station for forming a visible toning image of an electrostatic latent image, and an optical component assembly for projecting the image onto a charged electrophotographic member, wherein the electron The photographic member, the charging station, and the imaging station are all composed of the mechanical component assembly module 26, the optical component assembly is composed of the optical component assembly module 28, and the toner station is in the mechanical component assembly. Consists of the assembled toner assembly module 30, the integral module is detachable as a unit in one external cabinet (12, 14) Electrophotographic copier as claimed re-attached.

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