JPS61160765A - Light room electronic photograph camera system - Google Patents

Abstract

PURPOSE:To form an electronic photograph camera system of small size and usable in a dark room by executing exposure and developing are made when a master paper holding device is at the first position, and transferring the result when it is at the second position. CONSTITUTION:A master paper M is held by a master paper holding device 34 by adsorption, and after raising a focusing glass 60, moved to the position of exposure. Then, a developing device 20 is lowered by a chain 24, and the master paper is charged by a corotron 26 and exposed. Afterwards, the developing device 20 is raised by the chain 24. At such a time, a developing roller 30 comes into contact with the master paper M and rolled to make developing. Then, the master paper holding device 34 is turned counterclockwise by 90 deg. and made horizontal, and a sheet of transfer paper is placed. A transferring device 40 is moved to the left by a chain 50, and the transfer paper charged by a corotron 52 and the master paper M are pressure contacted by a pressure contacting roller 54 and transferring is performed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides an electrophotographic camera system that can be used in a bright room;
In particular, the present invention relates to an electrophotographic camera system that forms highly accurate photographs without using mirrors or the like in a photographic optical system.

[Conventional technology]

Conventional electronic photographic camera systems that create photographs that require high precision, such as cadastral maps, precise maps, and map originals, use developed master paper as photographs as they are, and the cameras do not have a developing device. After exposure, the master paper was removed from the camera in a dark room and developed using an independent developing device.

[Problem that the invention seeks to solve]

In the above-mentioned conventional electrophotographic camera system, the developing device is provided independently of the camera, so the entire system occupies a large space, and moreover, it must be located in a dark room. Further, when creating photographs such as cadastral maps, it may be necessary to partially correct the parts, but this correction was not possible in conventional systems that process master papers and turn them into photographs. Furthermore, removing the master paper from the camera and developing it in a developing device not only reduces work efficiency, but also poses a risk of fingerprints being left on the master paper or the master paper being bent.

The present invention has been made in view of the above problems of conventional electrophotographic camera systems, and an object of the present invention is to provide an electrophotographic camera system that is small and can be used in a darkroom.

Another object of the present invention is to provide an electrophotographic camera system that allows for easy partial correction.

A further object of the present invention is to provide an electrophotographic camera system that is not limited to photographic paper, that is, can transfer and form photographs not only on general paper but also on aluminum paper and cardboard.

A further object of the present invention is to provide an electrophotographic camera system having an efficient developing device that cleans and charges a master paper during forward movement of the developing device and performs development during backward movement.

[Means for solving problems]

The present invention has the following structural features in order to solve the above-mentioned problems and achieve the object. That is, the structural features of the present invention include a pedestal, a photographic lens slidably attached to the pedestal, a dark box device fixed to the pedestal with the photographic lens attached to one end, and a photographic lens mounted on the pedestal. a master paper holding device rotatably mounted between a first position, which is the imaging plane of the lens, and a second position, which is a plane orthogonal to the first position; and a master paper held by the holding device in parallel with the master paper. a transfer device running on a transfer device guide rail attached to the holding device; and a developing device running on a developing device guide rail provided in the dark box device parallel to the image forming surface of the photographic lens; Exposure and development are performed when the master paper holding device is in the first position, and transfer is performed when the master paper holding device is in the second position.

In one embodiment of the present invention, the developing device includes a developing roller, a cleaning brush, and a charging device, and when traveling in one direction on the master paper, the developing device includes the developing roller, the cleaning brush, and the charging device. Both are operated to clean and charge the master paper, and when traveling in the opposite direction, only the developing roller is operated to perform development.

〔Example〕

Examples of the present invention will be described below. As shown in FIG. 1, a camera system according to an embodiment of the present invention includes a document holding table 4 slidably supported on a rail 2 attached to a pedestal l, an illumination device 6, and a photographic lens 8 with a shutter. A lens support stand 40 that supports the dark box lO fixed to the stand lO
and a bellows 1) that connects the lens support stand 40 and the dark box 10. The document holding table 4 holds the document 12 so as to be perpendicular to the optical axis 14 of the photographic lens 8 . Illumination device 6 has optical axis 1
A large number of fluorescent lights 16 are arranged to surround the document holding table 4 and the photographic lens 8 .

A pair of guide rails 23 for guiding the developing device 20 are arranged in the dark box 10 in parallel within a plane perpendicular to the optical axis 14 . As shown in FIG. 2, the developing device 20 slides on a guide rail 23 via a plurality of transfer rollers 22.
Its movement is controlled by a control motor (not shown) and a chain 24 driven by the control motor. Developing device 20
A well-known colloid roller 26, a cleaning brush 28, and a developing roller 30 are provided so as to face or come into contact with the master paper M at the exposure position, which will be described later. The tip of the cleaning brush 28 contacts the master paper M at the exposure position when the developing device 20 moves downward, and runs away toward the right in FIG. 2 to avoid contact when the developing device 20 moves upward. Supported.

The dark box 10 further has a vertical position shown in FIG. 2, that is, an exposure position, and a horizontal position shown by imaginary lines in FIG. The master paper holding device 34 can be rotated to
is installed.

The master paper holding device 34 adsorbs the master paper M using a known suction device (not shown). The master paper holding device 34 also has a pair of guide rails 42 for the transfer device 40, which are parallel to the guide rail 23 when in the exposure position shown in FIG. 2 and are arranged inside of the guide rail 23.

The transfer device 40 moves on the guide rail 42 via a plurality of transfer rollers 44, and this movement is controlled by a control motor (not shown) and a chain 50 driven by the control motor. The transfer device 40 is provided with a corotron 52 and a pressure roller 54 for transfer.

The guide rail 23 further supports the focusing glass 60 on its upper part so as to be slidable along the guide rail 23, and when the master paper holding device 34 is in the transfer position, the focusing glass 60 is supported on the master paper /'e-M. It is lowered to the exposure position to enable the photographic lens 8 to focus.

Next, the operation of the camera system having the above configuration will be explained. First, a manuscript such as a cadastral map is held on the manuscript holding table 4,
The illumination device 6 is turned on to illuminate the original. On the other hand, the master paper holding device 34 is moved to the transfer position, the focusing glass 60 is lowered, and the photographic lens 8 is moved to focus.

Subsequently, the master paper M is held by suction on the master paper holding device 34, and after the focusing glass 60 is raised, the master paper holding device 34 is moved to the exposure position. Next, the developing device 20 is lowered by the chain 24, the master paper M is charged by the corotron 26, and then the shutter of the photographic lens 8 is operated to perform exposure. Thereafter, the developing device 20 is raised by the chain 24, and at this time the developing roller 30 contacts the master paper M and rolls to perform the developing process.

Subsequently, the master paper holding device 34 is rotated 90 degrees counterclockwise in FIG. 2 to become horizontal. Here, the master paper M is partially corrected as desired, and then the transfer paper is placed thereon.

Next, the transfer device 40 is moved to the left in FIG.
are pressed together and transfer is performed.

The transferred paper is separated from the master paper M and fixed by a separately prepared fixing device.

On the other hand, after the transfer device 40 is returned to the position shown in FIG. 2 by the chain 50, the master paper holding device 34 is rotated 90'' clockwise in FIG. 2 and positioned as shown in FIG. .

Subsequently, the developing device 20 is lowered by the chain 24, and prior to this, the cleaning brush 28 moves to the left in FIG. 2 and comes into contact with the master paper M. Rotate while in contact to clean toner. At this time, the developing roller 30 also operates to bring the toner into contact with the uncharged master paper M, thereby removing the residual image.

When the lowering of the developing device 20 is completed, exposure normally continues, but if desired, the photographic lens 8 is brought into focus again.

〔Effect of the invention〕

Since the present invention is constructed as described above, it has the advantage of being compact and capable of working in a dark room, and also has the advantage of being able to easily make partial corrections if desired. Furthermore, the present invention is not limited to photo paper, and can form photographs not only on general paper but also on aluminum cerato paper and cardboard.Furthermore, the master paper is cleaned and charged by the forward movement of the developing device, and by the backward movement. It also has the advantage that the master paper can be efficiently developed and washed by performing the development.

[Brief explanation of drawings]

FIG. 1 is a side view of the entire camera system according to an embodiment of the present invention, and FIG. 2 is an enlarged side view of the dark box section shown in FIG. 1. 1... Stand, 2... Rail, 4... Original holding stand,
8... Photographic lens, 10... Dark box, 20... Developing device, 26... Corotron, 28... Cleaning foil, 30... Developing roller, 34... Master paper holding device, 40... Transfer device, 52... Corotron, 54... Pressure roller.

Claims (2)

[Claims] (1) a pedestal, a photographic lens slidably attached to the pedestal, a dark box device having the photographic lens attached to one end and fixed to the pedestal, and a first position that is the imaging plane of the photographic lens; a master paper holding device rotatably attached to a second position which is a plane orthogonal thereto; and a transfer device guide rail attached to the holding device in parallel with the master paper held by the holding device. and a developing device that runs on a developing device guide rail provided in the dark box device parallel to the image forming surface of the photographic lens, when the master paper holding device is in the first position. A bright room electrophotographic camera system characterized in that it is configured such that exposure and development are performed and transfer is performed when in a second position. (2) The developing device has a developing roller, a cleaning brush, and a charging device, and when traveling in one direction on the master paper, all of the developing roller, cleaning brush, and charging device are operated to clean the master paper. The bright room electrophotographic apparatus according to claim 1, wherein the bright room electrophotographic apparatus is configured to perform cleaning and charging, and to operate only the developing roller to perform development when traveling in the reverse direction.