JPS6017437A - Reader printer - Google Patents

Abstract

PURPOSE:To reduce an installation space, and to raise an operability by placing an exposing part of a photosensitive body so as to be superposed on the upper part of a film operating chamber, and also placing an optical path deflecting reflector on the upper part of a projection screen. CONSTITUTION:A light from a light source in a light source chamber 12 of the lower end of a body 11 irradiates a microfilm 13 through a condensing lens 15. The transmitting light is projected to a screen 19 or a photosensitive body 21 through a projection lens 16, a reflector 17 which is bendable and freely turnable around a turning shaft 18, a fixed reflector 22 and a switching reflector 23. That is to say, at the time of projection and at the time of copying, the reflectors 17, 23 are positioned so as to be shown by a full line and a two point chain line, respectively. The exposing part of the photosensitive body 21 is placed so as to be superposed on the upper part of an operating chamber 14, and the reflector 22 for deflecting an optical path is placed on the upper part of the screen 19, therefore, the installation space is reduced and the operability is raised.

Description

[Detailed Description of the Invention] The present invention relates to a reader printer for microfilm incorporating a copying device using an electrophotographic photoreceptor, and is particularly intended to reduce the overall depth, reduce the installation area, and improve operability. It is.

It is known as a device that enlarges and projects image information recorded on microfilm in the form of a roll, fish, aperture card, jacket, etc. onto a projection screen, or copies it on a transfer medium such as paper. There is a reader printer, and most printers generally use an electrophotographic photoreceptor. In order to reduce the size, weight, and cost of this reader printer, a model has been developed in which a single copying projection lens serves as both a projection lens and a copying lens, and the light source is also integrated into one. . As shown in FIG. 1, which schematically shows the structure of an example of such a conventional reader printer, a light source 10 is provided in a lamp chamber 102 formed in front of the lower end of a main body 101.
3 and a reflecting mirror 104 that reflects the light from the light source 103 upward, and a film operation space 106 in which the microfilm 105 is positioned is formed at the lower front of the main body 101. A part of the condensing lens 107 that guides the light from the light source 103 to the microfilm 105 is
The reflecting mirror 10 projects into the film operation space 106.
4, and a first reflecting mirror 109 that bends the optical path toward the rear of the main body 101 is fixed in an inclined state above the copying projection lens 108, which faces the condensing lens 107 while sandwiching the microfilm 105. It is set up. Behind the first reflecting mirror 109, the optical path from the first reflecting mirror 109 is directed to the projection screen 110 side formed at the upper front of the main body 101, or to the electrophotographic photosensitive paper 111 formed at the lower rear of the main body 101. A rotating shaft 113 is attached to the main body 101 with a switching reflector 112 for switching to the exposure section side.
The first reflecting mirror 1 is arranged so as to be rotatable around the
A copying reflecting mirror 114 that bends the optical path from 09 toward the exposed portion of the electrophotographic paper 111 is fixedly installed in an inclined state. Moreover, above the switching reflector 112, this switching reflector 1
A projection reflecting mirror 115 is fixedly installed to bend the optical path from the first reflecting mirror 109 toward the projection screen 110 through a mirror 12. An electronic copying device (not shown) is attached to the main body 101, which can sequentially charge, develop, and fix the image.

By the way, the microfilm 105 is available in roll-like and fish-like forms, and in particular, in the case of a flat fish-like film, it is necessary to move it in any direction on a plane perpendicular to the copying projection lens 108 and rotate it. Therefore, the film operation space 106 had to be set very large. As a result, in terms of space, conventional reader printers cannot use photosensitive paper.
The total depth of the exposure area 166 must be formed at the rear of the film operation space 166, resulting in a very large overall depth. Such drawbacks also apply to reader printers equipped with electronic copying devices that have a transfer process to plain paper. In addition, in the type of copying onto plain paper, the height from the lower end of the main body 101 and the film operation space 106 to the projection screen 110 is high because the electronic copying device is arranged at the lower end of the main body 101, and the height from the lower end of the main body 101 and the film operation space 106 to the projection screen 110 is high. When this reader link is placed on a computer or the like, the operator must operate the CC while standing. Moreover, if the height of the operator's eyes and the height of the projection screen 110 are made to match, the operator must operate the microfilm 105 while bending over, making the workability in a seated position extremely poor. .

In view of the dimensional defects of such conventional reader printers, the present invention is capable of greatly shortening the depth by locating an electronic copying device, etc. above the film operation space, and also provides a projection screen from the lower end and the film operation space. It is an object of the present invention to provide a reader printer with a novel structure that can reduce the height of the CL as much as possible, thereby reducing the installation space and improving operability in a seated position.

The structure of the reader printer of the present invention that achieves this object includes a film operation space formed in the front lower part of the main body and in which the microfilm is positioned, and a film operation space arranged above the film operation space and arranged in the microfilm. a copy projection lens for enlarging recorded image information; a projection screen formed on the upper front surface of the main body and onto which the enlarged image information is projected; and a projection screen movably mounted above the film operation space at the rear of the main body. an electrophotographic photoreceptor, and a charging exposure means for forming an electrostatic latent image of the enlarged image information on the electrophotographic photoreceptor;
a developing means for developing the electrostatic latent image with toner; and a transfer device disposed along the electrophotographic photoreceptor and capable of storing the toner image of the image information in the main body and moving in synchronization with the electrophotographic photoreceptor. a transfer means for transferring onto a medium; a first switching reflector attached to the upper end of the main body and capable of switching the optical path from the copying projection lens to the projection screen side or to the electrophotographic photoreceptor side; and the electrophotographic photoreceptor. a fixed reflector fixed in an inclined state in the main body above the body and bending the optical path from the first exchange reflector to the electrophotographic photoreceptor; and a projection screen in the main body behind the projection screen. The light beam is attached so as to be movable towards and away from the mirror, and bends the optical path from the first switching reflector to the projection screen, and approaches the projection screen during copying, and enters the main body from the projection screen. and a second switching reflector that also functions as a light shielding plate capable of blocking light.

Hereinafter, an embodiment of the reader printer according to the present invention will be described in detail with reference to FIG. 2 showing its cross-sectional structure and FIG. 3 showing the schematic structure of an electrophotographic apparatus. Main body 11
A light source (not shown) and a reflecting mirror (not shown) that reflects the light from the light source upward are arranged in the lamp chamber 12 formed in front of the lower end, and are used for film operation in which various microfilms 13 are positioned. The space 14 is formed at the lower front of the main body 11. A condenser lens 15 that guides the light from the light source to the microfilm 13 via a reflecting mirror is fixed directly above the reflecting mirror so as to protrude into the film operation space 14. 13 and this condensing lens 15
Above the copying projection lens 16 which faces the main body 11, a first interchangeable reflecting mirror 17 whose optical path can be bent selectively to a projection screen (to be described later) or an exposure area of an electrophotographic photoreceptor is rotatably pivoted to the main body 11. It is attached in an inclined state via a rotating shaft 18. In other words, the first interchangeable reflecting mirror 17 is configured such that two angles of inclination can be arbitrarily selected. A projection screen 19 on which image information recorded on the microfilm 13 is enlarged and projected is formed at the front upper part of the main body 11, and a pair of left and right rolls 20 are provided at the rear of the main body 11 above the film operation space 14. An electrophotographic photoreceptor 21 in the form of an endless band is arranged, and its upper end surface is formed as an exposure section. A fixed reflecting mirror 22 is fixedly installed in an inclined state above the electrophotographic photoreceptor 21 to bend the optical path from the first switching reflector 17 to the exposed portion of the electrophotographic photoreceptor 21 during copying. Behind the first interchangeable reflector 19 is a second interchangeable reflector 17 that bends the optical path from the first interchangeable reflector 17 to the projection screen 19 during projection and functions together with the first interchangeable reflector 17 as a light shielding plate for light entering the main body 11 from the projection screen 19 during copying. A two-switch reflector 23 is attached to the main body 11 so as to be movable toward and away from the projection screen 19 along an arcuate guide rail (not shown) provided on the main body 11 . That is, at the time of projection, the first switching reflector 17 and the second switching reflector 23 are positioned at the projection position as shown by the solid line in FIG. 2, and at the time of copying, the two-dot chain line in FIG. The first switching reflector 17 and the second switching reflector 23 are positioned at copying positions as shown in FIG.

The electrophotographic photoreceptor 21 can rotate clockwise in FIG. 3 as the roller 2oLy) is driven to rotate.
In this embodiment, the electrophotographic photoreceptor 21 has an endless structure, but
The belt may have an end structure and be connected to a pair of left and right rollers 20, and be used repeatedly by rotating these rollers 2o in forward and reverse directions, or a sheet-like electrophotographic photoreceptor may be attached to an endless belt. In any case, this electrophotographic photoreceptor 2
0 above the film operation space 14 so as to overlap with the film operation space 14, the overall depth can be made significantly smaller than that of the conventional one.The exposure of the electrophotographic photoreceptor 21 A charger 24 for charging the electrophotographic photoreceptor 21 is provided at one end of the section, and a charger 24 for charging the electrophotographic photoreceptor 21 is provided at the other end of the exposed section of the electrophotographic photoreceptor 21. A developing device 25 is provided to develop the formed electrostatic latent image with toner. Also, between the electrophotographic photoreceptor 21 and the film operation space 14, there is provided a paper sheet for storing copy paper 26 as a transfer medium. A cassette 27 is provided, and the copy paper 26 is pulled out one by one from the paper cassette 27 by a semi-circular delivery roller 28, positioned by a pair of upper and lower registration rollers 29, and then transferred from the fixing roller 30 to the outside of the main body 11. A transfer device 31 is provided between the registration roller 29 and the pair of upper and lower fixing rollers 30 to transfer the toner image formed on the electrophotographic photoreceptor 21 onto the copy paper 26. The toner image transferred onto the copy paper 26 by the transfer device 31 is heated by a heater (not shown) built into the fixing roller 30 while passing through the fixing roller 30, and is fixed onto the copy paper 26. A cleaner 33 is installed between the transfer device 31 and the charger 24 to scrape off toner adhering to the surface of the electrophotographic photoreceptor 21 after transfer onto a toner receiver 32 by known means. ,
A static eliminator 34 for removing residual static electricity from the electrophotographic photoreceptor 21 is disposed along the electrophotographic photoreceptor 21.

In this embodiment, the paper cassette 27 is placed directly above the film operation space 14, but it can also be placed below the film operation space 14, and in the case of a double cassette type paper cassette 27, the paper cassette 27 is placed directly above the film operation space 14. It can be installed both above and below. Furthermore, in the electronic copying apparatus of this embodiment, the electrophotographic photoreceptor 21 is charged by one charger 24 to form an electrostatic latent image of five image information.
As disclosed in Japanese Patent Application Laid-open No. 53-76035, two chargers with different polarities and an electrophotographic photoreceptor 21 after exposure are used.
To use an electronic copying apparatus which incorporates a charger for recharging the electrophotographic photoreceptor 21 and an exposure means for uniformly exposing the electrophotographic photoreceptor 21, so that a negative image or a positive image of image information can be selected at the stage of forming an electrostatic latent image. is also possible. Furthermore, although heat is used as the fixing means in this embodiment, pressure may also be used.

Therefore, when projecting the image information recorded on the microfilm 13 onto the projection screen 19, the first switching reflector 17 and the second switching reflector 23 are positioned at the projection positions shown by solid lines in FIG. The magnified image information by turning on the non-contact light source is imaged onto the projection screen 19 by the copy projection lens 16. When copying, the first switching reflector 17 and the second switching reflector 23 are positioned at the copying position shown by the two-dot chain line in FIG. By moving the portion to the exposure section and turning on the light source, an electrostatic latent image of the image information recorded on the microfilm 13 is formed in an enlarged state on the electrophotographic photoreceptor 21 by the copy projection lens 16. Thereafter, the developing device 25 and the like are sequentially operated to optionally form a negative image or a positive image of the image information on the copy paper 26. During this copying operation, the second switching reflector 23 works together with the first switching reflector 17 to perform the function of a light shielding plate.
Copies with good contrast can be made.

In this way, according to the league printer of the present invention, the exposure section of the electrophotographic photoreceptor is arranged above the film operation space so as to overlap the film operation space front and back, so that the overall depth can be reduced compared to conventional printers. It can be installed even in narrow spaces. Also, a reflector that bends the optical path from the copy projection lens (first interchangeable reflector)
is located above the projection screen, and the projection screen is placed directly above the film operation space, making it possible to lower the distance from the bottom of the reader printer and the film operation space to the projection screen than with conventional printers. This greatly improves work efficiency in a seated position.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a schematic structure of a conventional reader printer, FIG. 2 is a sectional view showing a schematic structure of an embodiment of a reader printer according to the present invention, and FIG. 3 is a front view of the electronic copying device portion thereof. In the figure, 11 is the main body, 13 is the microfilm, 14 is the film operation space, 16 is the copy projection lens, 17 is the first interchangeable reflector, 19 is the projection screen, 21 is the electrophotographic photoreceptor, 22 is a fixed reflecting mirror, 23 is a second switching reflecting mirror, 24 is a charger, 25 is a developing device, 26 is copy paper, 30 is a fixing roller, 31 is a transfer device, and 33 is a cleaner. Patent applicant Fuji Photo Film Co., Ltd. Representative Patent Attorney Shibe Mitsuishi (and 1 other person) District 2, Figure 3

Claims (1)

[Claims] a film operation space formed at the lower front of the main body and in which the microfilm is positioned; a copying projection lens arranged above the film operation space and for enlarging image information recorded on the microfilm; and the main body. a projection screen formed on the front upper part of the main body and onto which the enlarged image information is projected; an electrophotographic photoreceptor movably mounted above the film operation space at the rear of the main body; a charging exposure means for forming an electrostatic latent image; a developing means for developing the electrostatic latent image with toner; and a developing means disposed along the electrophotographic photoreceptor and storing the toner image of the image information in the main body. a transfer means for transferring the image to a transfer medium that can move in synchronization with the electrophotographic photoreceptor; and a transfer means attached to the upper end of the main body and directing the optical path from the copy projection lens to the projection screen side or to the electrophotographic photoreceptor side. a switchable first switching reflector; a fixed reflecting mirror fixedly installed in the main body in an inclined state above the electrophotographic photoreceptor and bending an optical path from the first switching reflector to the electrophotographic photoreceptor; A mirror is mounted in the main body behind the projection screen so as to be movable toward and away from the projection screen, and bends the optical path from the first switching reflector to the projection screen, and approaches the projection screen side during copying. and a second switching reflector that also functions as a light shielding plate capable of blocking light entering the main body from the projection screen.