JPH0820673B2 - Copier equipped with slide projector - Google Patents

Description

Description: (a) Field of Industrial Application This invention relates to a copying machine that forms an image using a photosensitive material on which an image is exposed, and more particularly to a copier mounted on a document table as an image for exposing the photosensitive material. The present invention relates to a copying machine equipped with a slide projector that can selectively use either an image of an original document or an image of a slide loaded in the slide projector.

(B) Conventional Technique In a copying machine using a photosensitive material, the photosensitive material is exposed at an exposure position to form a selectively cured image or an electrostatic latent image on the surface of the photosensitive material. In such a copying machine, document exposure is generally performed in which an image of a document placed on a document table is scanned by an optical system device, and light reflected from the document is distributed to a photosensitive material. In accordance with the trend, there is a device that can perform slide exposure using an image on a slide film as a document. This distributes the image light of the slide film to the exposure position.
A slide projector is provided in which a light source for copying a slide film is separately provided, the slide film is conveyed between the light source and the exposure position, and the photosensitive material is slit-exposed at the exposure position. It is conceivable that the light source of the slide projector is provided on an extension of a part of the optical path from the platen to the exposure position, and a part of the original document exposure path and a part of the slide exposure path are shared to save space. .

This slide projector is equipped with a projection lens, and magnifies the image transmitted through the slide film and distributes it to the exposure position. Therefore, it is necessary to make the conveying speed of the photosensitive material at the exposure position relatively faster than the conveying speed of the slide film in the slide projector according to the enlargement ratio. On the other hand, at the time of exposing a document, it is necessary to change the conveying speed of the photosensitive material relative to the scanning speed of the original by the optical system according to the copy magnification. Therefore, in a copying machine equipped with a slide projector, in order to facilitate speed control of the image scanning speed and the conveying speed of the photosensitive material, the original scanning speed of the optical system device and the conveying speed of the slide film are fixed, and the photosensitive material is fixed. Only the transport speed of should be changeable.

(C) Problems to be Solved by the Invention However, if only the conveying speed of the photosensitive material is changed in a copying machine equipped with the slide projector, an original exposure mode for copying an image of an original on a platen, and a slide mode. The conveyance speed of the photosensitive material has to be changed in the slide exposure mode in which the image on the slide film set in the projector is copied, and the control contents of the copying operation greatly differ depending on which of the two modes is selected. For this reason, if the mode desired by the operator is not accurately executed, the slide projector may operate even if the document is placed on the document table, or conversely, the slide film may be set on the slide projector. Nevertheless, erroneous processing such as the operation of the optical system device occurs, and a normal copied image cannot be obtained.

An object of the present invention is to selectively execute the document exposure mode or the slide exposure mode depending on whether the document exposure path or the slide exposure path is enabled, so that the mode different from the mode desired by the operator can be set. It is an object of the present invention to provide a copying machine equipped with a slide projector that can surely prevent copying work and always obtain a normal copied image.

(D) Means for Solving the Problems A copying machine equipped with the slide projector of the present invention is
Of the document exposure path from the platen to the exposure position via the mirror, part of the slide exposure path from the slide projector to the exposure position is used as part of the slide exposure path that can be manually retracted from the document exposure path. In the copier, a detection unit for detecting whether the moving mirror is in the original exposure path and a mode for setting the original exposure mode or the slide exposure mode according to the detection position of the moving mirror detected by the detecting unit Setting means and is provided.

That is, as shown in FIG. 1, the movable mirror can be manually retracted from the document table to the document exposure path which is located at the exposure position. The position of the moving mirror is detected by the sensor, and the detection result is supplied to the mode setting means.
The mode setting means sets either the original exposure mode or the slide exposure mode according to the detection data of the sensor, and writes the data of the set mode in, for example, the photosensitive material conveying means. The photosensitive material conveying means changes the conveying speed of the photosensitive material according to the mode data.

(E) Operation In the present invention, it is detected whether or not the movable mirror that can be manually retracted from the original exposure path is in the original exposure path, and the original exposure mode or slide exposure is performed based on the detected position of the movable mirror. It is determined which mode is selected. The original exposure path or the slide exposure path is selectively enabled by changing the position of the moving mirror, so that the position of the moving mirror determines whether the original on the platen or the slide film on the slide projector is copied. It will be the basis for the decision. Therefore, proper control is performed regardless of whether the original is placed on the original table by setting the mode to be executed according to the position of the moving mirror or when the slide film is set on the slide projector. Is executed. That is,
The operator only has to move the moving mirror, and it is not necessary to perform a special operation on the main body of the device to input the operation mode. Therefore, due to a mistake in the input of this operation mode, a copying operation may be performed in a mode different from the desired mode. Is never executed. Therefore, it is possible to accurately execute the processing in either the original exposure mode or the slide exposure mode selected by the operator.

(F) Embodiment FIG. 3 is a schematic front view of a copying machine according to an embodiment of the present invention.

A document table 29 made of a transparent hard glass body is provided on the upper surface of the copying machine main body 21. An optical system device 22 including a light source 23, mirrors 24 to 27, and a lens 28 is provided on the lower surface of the original table 29. This optical system device
The light source 23 and the mirrors 24 to 26 among the 22 move the lower surface of the document table 29 in the directions of arrows A and B, and scan the image of the document placed on the document table 29.

A pressure unit 31 including a pressure roller 32 and a driven roller 33 is provided at the center of the inside of the copying machine main body 21. In this pressure unit 31, a pressure roller 32 and a driven roller 33
The contact position with the developing position 91. A media sheet storage section 39 is formed on the left side of the pressing section 31. This media sheet storage section 39 has a roll-shaped media sheet 34.
Is wound around the supply shaft 35 and provided. The media sheet 34 passes through the exposure position 90 by the rollers 37, 38 and 78, and then the developing position.
Guided by 91. Media sheet 34 that passed development position 91
Is wound around the winding shaft 36.

The image of the original scanned by the optical system device 22 is distributed to the exposure position 90 via the mirrors 24 to 27 and the lens 28 as shown by the chain line in the figure. The optical path indicated by the alternate long and short dash line in this figure is the original exposure path. The surface of the media sheet 34 is coated with a photosensitive microcapsule containing a colorless dye and a photo-curable material in a resin shell, and a reflected light from the original is received at an exposure position 90 to form a selectively cured image. It

Paper cassettes 42 and 43 are mounted on the right side surface of the copying machine main body 21. Image receiving sheets 46a and 46b of different sizes are stored in the paper cassettes 42 and 43, respectively. The image receiving sheet 46a or 46b is guided to the developing position 91 of the pressure unit 31 from either the paper cassette 42 or 43 by the paper feeding roller 44 or 45 via the timing roller 51. As a result, the image receiving sheet 46a (46b) passes through the developing position 91 together with the media sheet 34 on which the selectively cured image is formed.
At the developing position 91, the uncured photosensitive microcapsules of the media sheet 34 are destroyed by the pressing force of the pressure roller 32, and the colorless dye contained therein leaks onto the image receiving sheet 46a (46b). The image receiving sheet 46a (46b) is coated with a developing material, and an image is obtained on the image receiving sheet 46a (46b) by a color reaction between the developing material and the colorless dye.

The image receiving sheet 46a (46b) that has passed the developing position 91 is guided to the heat roller 55 by the conveyor belt 53 and heated. The surface of the image receiving sheet 46a (46b) is coated with a thermoplastic resin together with the developing material, and the heat roller 55 melts this thermoplastic resin. As a result, the image receiving sheet 46a
(46b) Gloss is given to the image formed above. The image receiving sheet that has passed through the heat roller 55 is discharged to the paper discharge tray 57 by the paper discharge roller 56.

On the upper right side of the copier body 21, a slide projector 11
Is installed. This slide projector 11 has a light source 13, a projection lens 14 and a slit 15 inside.
It has. The light source 13, the slit 15 and the projection lens 14 are located on the extension line of the optical path from the mirror 27 to the exposure position 90. This light source 13 and slit 15
And the slide film 12 is conveyed in the direction of arrow G.

The mirror 27 is the moving mirror of the present invention, and when copying the image on the slide film 12 using the slide projector 11, the mirror 27 is moved to the position shown by the chain double-dashed line in the figure and exposed from the light source 13. Open the slide exposure path to position 90.

FIG. 2 is a perspective view showing a configuration of a main part of a copying machine equipped with the slide projector.

The mirror 27 can be rotated in the directions of arrows C and D by operating the knob 1, and can be moved to the position shown by the chain double-dashed line in FIG. At this time, a part of the mirror 27 comes into contact with the actuator of the switch SW1, and the switch SW1 is turned on. Further, a ratchet 3 is coaxially provided on a shaft 2 connecting the knob 1 and the mirror 27, and a claw 4 fixed to an actuator of a solenoid SOL1 faces above the ratchet 3. When the solenoid SOL1 is driven, the claw 4 moves downward and engages with the ratchet 3 to restrict the rotation of the mirror 27 by the operation of the knob 1.

FIG. 4 is a block diagram showing the main part of the control section of the copying machine.

Switch SW1 to CPU61 via I / O interface 64
ON data of is input. A program defining the operation of the CPU 61 is written in advance in the ROM 62 connected to the CPU 61, and the CPU 61 outputs control data to the motor driver 65, the solenoid driver 66, etc. according to this program. At this time, a part of the memory area of the RAM 63 is assigned to the working area. The motor driver 65 controls the rotation speed of the main motor M1. Solenoid driver
66 selectively drives the solenoid SOL1. The main motor M1 uses the transmission mechanism (not shown) to apply the force roller 32, the take-up shaft 3
6, paper feed rollers 44, 45, conveyor belt 53 and paper discharge rollers 56
Supply the rotation force to.

FIG. 5 is a flowchart showing a part of the processing procedure of the control unit of the copying machine.

The CPU 61 waits for the operation of the print switch after the initial operation is completed (n1, n2). When the print switch is operated, the solenoid SOL1 is driven (n3). By driving the solenoid SOL1, the knob 1 is fixed, and the position of the mirror 27 does not change. Next, the on / off state of the switch SW1 is checked (n4). If the switch SW1 is on, the slide exposure mode process is executed (n5). If the switch SW1 is off, the document exposure mode is checked. The process of is executed (n6). In the slide exposure mode, the slide mode lamp provided on the operation panel (not shown) is turned on, the light source 13 of the slide projector 11 is driven, and the slide film 12 is conveyed in the direction of arrow G in the optical path. At the same time, the main motor M1 is driven at a predetermined speed. On the other hand, in the document exposure mode, the light source 23 of the optical system device 22 is driven without turning on the slide mode lamp, and the optical system motor (not shown) is driven to reciprocally move the optical system device 22 to the lower surface of the document table 29. At the same time, the main motor M1 is driven at a speed according to the set copy magnification.

As described above, according to this embodiment, whether the mirror 27 is in the original exposure path is detected by the switch SW1, and the slide exposure mode or the original exposure mode is detected according to the ON / OFF state of the switch SW1. The process of is executed. Since the movement of the mirror 27 is performed by the operation of the operator, the copying operation can be performed in the mode desired by the operator by performing the processing of the mode according to the ON / OFF state of the switch SW1.

In this embodiment, the position of the mirror 27 is set by manually operating the knob 1. However, a selection switch may be provided on the operation panel to move the position of the mirror 27 by rotating a motor or the like. . Further, in this embodiment, the image receiving sheet 46a (4
6b) It was explained using a copying machine that forms a copied image on it. Regarding a copying machine that uses an electrophotographic method that forms a copied image through a photoconductor that forms an electrostatic latent image by exposure as a photosensitive material. The present invention can be similarly implemented.

(G) Effect of the Invention According to the present invention, since either the original exposure mode or the slide exposure mode selected by the operator can be accurately executed, erroneous copying does not occur, and proper copying is always performed. There is an advantage that an image can be obtained.

[Brief description of drawings]

FIG. 1 is a diagram showing the structure of the present invention, FIG. 2 is a perspective view showing the essential parts of a copying machine equipped with a slide projector which is an embodiment of the present invention, and FIG. 3 is a front view showing the structure of the copying machine. FIG. 4 is a block diagram showing a part of a control unit of the copying machine, and FIG. 5 is a flowchart showing a processing procedure of the control unit of the copying machine. 11 …… Slide projector, 29 …… Document table, 24-27…
… Mirror, 90… exposure position.

Claims (1)

[Claims] 1. A slide exposure path extending from a slide projector to an exposure position, a part of a document exposure path extending from a document table to an exposure position via a mirror, including a movable mirror that can be manually retracted from the document exposure path. In a copier that is commonly used as a part of the document, a detecting means for detecting whether or not the moving mirror is in the original exposure path, and an original exposure mode or a slide exposure depending on the detecting position of the moving mirror detected by the detecting means. A copying machine provided with a slide projector, characterized in that a mode setting means for setting a mode is provided.