JPH03203731A - Device for holding single original - Google Patents

Abstract

PURPOSE:To ensure the loading of a single original by providing a stop member which abuts, from the downstream side in the displacement direction, on a single-original holding member. CONSTITUTION:The holding member 102, on which the single original 103 is loaded, is slidably loaded to a guide member 210 extending across a previously determined optical path. The member is designed in such a manner that the member can cross the optical path while holding the single original 103, and that the member 102 can be displaced between the displacement start position l1 and the displacement end position l2. In addition, the holding device is constituted in such a manner that when the single original 103 is loaded, in the displacement start position l1, on the holding member 102, the stop member 99 abuts, in the displacement start position l1 and from the downstream side in the displacement direction, on the holding member 102. Therefore, the slide holder 96 is prevented from being pushed down by the force of an operator when the slide film 103 is loaded. Thus, the loading of the slide film 103 can be ensured.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is a method for processing single-sheet originals, which is preferably implemented in a slide projector, etc., which is installed in a copying machine and distributes light transmitted through an image on a slide film to an exposure position. Relating to a holding device.

2. Description of the Related Art There is a copying machine in which a slide projector for exposing an image on a slide film is attached to the copying machine so as to copy the image on the slide film. In such copying machines, equipment other than the optical system is shared between the slide copying mode for copying images on slide film and the original copying mode for copying normal originals, thereby reducing the size and size of the machine. It is possible to suppress the complexity of the structure.

In this way, if devices other than the optical system are shared in both modes, the slide projector must perform slit exposure of the slide film in the same way as the optical system exposes the document. For this reason, the slide holder on which the slide film is mounted must be moved at a constant speed relative to the light source, and the slide projector must be equipped with a driving means consisting of a driving device such as a motor and a transmission mechanism.

On the other hand, it is necessary for the operator to be able to replace the slide film attached to the slide holder at will, so the slide holder must be manually moved using a lever or other manual moving means to a position where the slide film can be easily attached. should be allowed to do so.

However, when a manual moving means for manually moving the slide holder and a driving means for moving the slide holder by the driving force of a driving device such as a motor are provided together, the driving means and the slide holder are connected by a transmission mechanism or the like. If it is always connected, not only the slide holder but also the transmission mechanism and driving device must be operated by the manual moving means during drive movement, which requires a large amount of force to operate the manual moving means, making the work complicated. There was a problem of Furthermore, the manual moving means must have a strong structure so as to be able to withstand the large force that is applied during its operation, which poses a problem of increasing the size and cost of the device.

In order to solve such problems, when operating the manual moving means, the driving means consisting of a driving device and a transmission mechanism is not connected to the slide holder, so that only the slide holder can be moved by the manual moving means, There is a slide projector in which a slide holder can be manually moved with a small amount of force.

Problems to be Solved by the Invention In the slide projector as described above, although the slide holder can be easily moved manually to the mounting position, when inserting and mounting the slide film into the slide holder, the slide projector is difficult for the operator to slide. The slide holder may be pushed down by the operating force when inserting the film, resulting in incomplete mounting of the slide film.

SUMMARY OF THE INVENTION An object of the present invention is to provide a single-sheet document holding device that can reliably mount a single-sheet document such as a slide film.

Means for Solving the Problems The present invention provides a single-sheet document holding device used in a device for visualizing an optical image of a document, which includes: a guide member extending in a direction intersecting a predetermined optical path; and a guide member that slides on the guide member. a holding member that is displaceable between a displacement start position and a displacement end position at which the single-sheet original is mounted, across the optical path while holding a single-sheet original, and a holding member that is at the displacement start position; The holding device for a single-sheet document is characterized in that it includes a flexible stop member that abuts from the downstream side in the direction of displacement.

Function According to the present invention, in the single-sheet document holding device used in a device for visualizing an optical image of a document, the holding member to which the single-sheet document is mounted includes a guide member extending in a direction intersecting a predetermined optical path. It is slidably attached to and is displaced across the optical path between a displacement start position and a displacement end position while holding a single sheet document.

The single sheet document is mounted on the holding member at the displacement start position. At this time, the stop member contacts the holding member at the displacement start position from the downstream side in the displacement direction. Therefore, the holding member is prevented from being displaced in the displacement direction when a single-sheet original is mounted, and the single-sheet original can be reliably mounted on the holding member.

Furthermore, since the stop member is visible, by applying a force greater than the force applied to the holding member when loading a single sheet document, the holding member is displaced along the guide member.

Embodiment FIG. 1 is a sectional view showing the basic structure of a copying machine 1 which is an embodiment of the present invention. , on the top of the copying machine 1 is the original platen 2.
is provided. An optical system device consisting of copy lamps 3 and 4, mirrors 5 to 8, and a lens 9 is provided on the lower surface of the document table 2. Further, a sensor S15 for detecting the temperature of the document table 2 is provided. Of this optical system, the copy lamp 3.4 and mirrors 5 to 8 are mounted on a mirror unit 11.12, and are moved back and forth on the lower surface of the document table 2, which is made of hard transparent glass, etc., to remove the document. An image of a document 10 placed on a table 2 is scanned. A sensor S12 for detecting the position of the missy unit 11 is provided below the mirror unit 11. Of the light from the copy lamp 34, the reflected light from the original 10 passes through the mirrors 5 to 8 and the lens 9, and is distributed to the exposure plate 40 as shown by the dashed line in the figure, and is then exposed to the photosensitive stickers l to 4 on the exposure plate 40.
25 is exposed. A heater 41 is provided on the opposite side of the exposure plate 40 from the photosensitive sheet 25.

A pressure roller 4647 is provided in the center of the interior of the copying machine 1, and constitutes a pressure developing device 48. The pressure roller 46 is connected to the pressure roller 47 by the auxiliary rollers 61 and 62.
The pressure rollers 46, 47 abut with a predetermined pressure. A cartridge 23 containing a photosensitive sheet 25 is attached to the packet 20 on the left side of the pressure rollers 46 and 47 in the drawing. In the cartridge 23 made of this light-shielding material, the photosensitive sheet 25 is wound around a supply roller 24 .

The photosensitive sheet 25 is placed between a guide roller 27 and a roller 31 .
43, the exposure plate 40, and the pressure developing device 48. Photosensitive sheet 25 passed through pressure developing device 48
is wound up on a winding roller 28 which is pivotally supported by the cartridge 23.

On the side of the copying machine 1, there are a manual feed tray 70 and a paper cassette 7.
1 is installed. The image receiving sheet 73a placed on the manual feed tray 70 or the image receiving sheet 73b stored in the paper cassette 71 is rotated by the rotation of the paper feed rollers 74 and 75.
The sheets are fed one by one to four timing rollers. Sensor Sl
, S2 detects the presence or absence of an image receiving sheet in the manual feed tray 70 and the paper cassette 71, and the sensor S4 detects the presence or absence of the image receiving sheet in the paper cassette 71.
Detects the type (sheet size). An image receiving sheet double feed detection sensor S7 is provided near the timing roller 49. Further, between the four timing rollers and the paper feed roller 74, an image receiving sheet 7 is inserted from the manual feed tray 70.
A sensor S3 for detecting the sheet width of sheet 3a and a room temperature detection sensor S16 are provided.

The timing roller 49 starts rotating at a predetermined timing, and the image receiving sheets 73a, 73b are transferred to the pressure developing device 48.
lead to. As a result, the image receiving sheets 73a and 73b pass through the pressure developing device 48 together with the photosensitive sheet 25, pass through the conveyance roller 50 and the glossing device 51, and then pass through the paper ejection roller 56.
The paper is ejected to the paper ejection tray 57. Conveyance roller 50
An image-receiving sheet detection sensor S is located between the
8 is provided, and an image receiving sheet detection sensor S9 is provided near the paper ejection roller 56.

A slide projector 100 is mounted on the upper side of the copying machine 1. This slide projector 1
00 is equipped with a light source 101, a slide holder 102, and a projection lens 104 inside. Slide holder 102 holds slide film 103.

The light source 101 and the projection lens 104 are arranged on a straight line with respect to the exposure plate 40, as shown by the two-dot chain line in FIG. The slide holder 102 is
The slide film 103 is moved in a direction perpendicular to the optical axis indicated by the two-dot chain line, and is subjected to slit exposure by the light source 101 .

In the copying machine 1 configured as described above, when copying an image of the original 10 placed on the original platen 2, the light reflected from the original 10 out of the light from the copy lamp 3.4 is As shown by the dashed line in FIG. 1, light is distributed to the exposure plate 40 via the mirrors 5 to 8 and the lens 9.

The photosensitive sheet 25 is a photosensitive pressure-sensitive material, and a large number of microcapsules with a particle size of 10 to 20 μm containing a leuco dye and a photocuring substance are coated on the surface of a light-reflecting metal sheet such as aluminum. A selectively cured image is formed on the photosensitive sheet 25 that is irradiated with the reflected light from the original 10 on the exposure plate 40 . Along with the photosensitive sheet 25 on which this selectively cured image is formed, the image receiving sheets 73a and 73b
is subjected to pressure in the pressure developing device 48. This pressure destroys the uncured microcapsules on the photosensitive sheet 25, and the leuco dye contained therein is transferred to the image receiving sheet 73.
a, leaks onto 73b. A developing material that causes a coloring reaction when mixed with a leuco dye is applied onto the image receiving sheets 73a and 73b, and an image is formed on the image receiving seed doors 3a and 73b that have passed through the pressure developing device 48. The surfaces of the image receiving sheets 73a and 73b are coated with a thermoplastic resin together with a developing material, and this thermoplastic resin is heated by the glossing device 51 and melts, giving gloss to the image.

On the other hand, when copying the image on the slide film, the mirror 8 moves to the position shown by the imaginary line in FIG. 1 to open the optical path from the light source 101 to the exposure plate 40. As a result, the light from the light source 101 that has passed through the slide film 103 is distributed to the exposure plate 40 via the projection lens 104. In the copying mode of the image on the slide film 103, the optical system stops operating, and a selectively hardened image of the image on the slide film 103 is formed on the photosensitive sheet 25. Therefore, by operating devices other than the optical system in the same manner as when copying the image of the document 10 placed on the document table 2, the image receiving sheet 73a
, 73b, the image of the slide film 103 can be copied.

Various processing operations in the above-mentioned copying machine will be explained below.

Set a new cartridge 23 in the photosensitive sheet initial setting packet 20, set the leader sheet provided at the tip of the photosensitive sheet 25 on the tractor roller 31, and then move the packet 20 to the mounting section 2.
1 and close the front cover. As a result, the front cover opening/closing detection sensor S14 is turned ON, and the photosensitive sheet take-up roller 28, pressure roller 47, and tractor roller 31 rotate to wind the leader sheet around the take-up roller 28. When the winding is completed, the winding detection sensor S18 is turned on. Thereafter, the pressure of the pressure roller 46 is released, a predetermined amount of the photosensitive sheet 25 is conveyed, and the initial setting of the photosensitive sheet 25 is completed. When the photosensitive sheet is conveyed, the sensitivity information sensor S10 reads a mark related to sensitivity information on the photosensitive sheet 25 attached to the back side of the leader sheet, and the reference position of the color correction filter provided in the optical path is switched according to the data.

Pre-processing operation Pre-processing operation is performed when the front cover is closed after clearing a jam.
This is performed when the print switch 88 is operated or when the power switch is turned on.

If the sensor Sll detects that the buffer roller 43 is not at the home position, the pressure developing device 4
With the pressure 8 released, the buffer roller 43 is moved in the direction of arrow B, the take-up roller 28 is rotated, and the buffer roller 43 is moved to the home position.

The photosensitive sheet 2 is pressed by the photosensitive sheet pressing member 80 provided between the exposure operation buffer roller 43 and the pressure developing device 48.
5 is fixed so that it does not move, and the photosensitive sheet supply roller 24 is allowed to rotate freely (there is some drag), and the buffer roller 43 is moved in the direction of the arrow A.
The image of the original 10 is slit-exposed onto the photosensitive sheet 25 on the exposure plate 40. Here, since the sensitivity of the photosensitive sheet 25 differs depending on the temperature, the temperature of the exposure plate 40 is controlled by the heater 41 so that it is at a predetermined temperature.

The temperature of the exposure plate 40 is detected by a sensor S17. Further, the exposure scanning length is determined by the size of the image receiving sheet 73 and the copying magnification.

When the exposure scan between exposure operation and pressure development is completed, the fixation of the photosensitive sheet 25 by the pressing member 80 is released, and while the rotation of the supply roller 24 is fixed, the take-up roller 28 is rotated, and the buffer roller 43 is moved in the direction of the arrow. The zero take-up roller 28, which is moved in the B direction at a predetermined speed V1, is provided so as to slip with its drive source, so the photosensitive sheet 25 is always conveyed under tension in accordance with the speed of the buffer roller 43. be done.

Next, when a predetermined period T1 has elapsed after the buffer roller 43 starts moving in the direction of arrow B, the timing roller 4
9 is rotated to convey the image receiving sheet 73 to the pressure developing device 48. Furthermore, after the period T2 has elapsed (when the leading edge of the image receiving sheet 73 reaches the pressure developing device 48), the movement of the buffer roller 43, the rotation of the take-up roller 28, and the rotation of the timing roller 49 are stopped, and the photosensitive sheet 25 and the timing roller 49 are stopped. While the conveyance with the image receiving seed door 3 is stopped, the supply roller 24
The rotation lock is released and the pressure roller 46 is pressurized.

Pressure development operation After the pressure roller 46 has completed applying pressure, the pressure roller 47 is rotated at a pressure development speed 3, and the buffer roller 43 is moved at a speed 1 which is less than 1/2 of the pressure development speed 3. This allows constant tension to be applied to the photosensitive sheet 25 at all times, thereby preventing the photosensitive sheet 25 from becoming loose or wrinkled.

When the buffer roller 43 moves to the home position, the drive of the buffer roller 43 is stopped and the pressure developing device 4 is turned off.
The photosensitive sheet 25 is conveyed only by 8. Next, the sensor S5 detects that the rear end of the image receiving sheet 73 passes through the pressure developing device 48. When determined based on the output of S6 and the timer, the pressure of the pressure developing device 48 is released.

Post-processing operation The image-receiving sheet 73 subjected to pressure transfer is heated by the glossing device 51 and subjected to glossing treatment and coloring treatment. On the other hand, the used photosensitive sheet 25 is taken up by a take-up roller 28.

Slide copy mode When the mirror 8 is moved to the position shown by the imaginary line using, for example, a manual lever provided inside the front cover, the mirror 8 is switched to the slide copy mode.

The position of mirror 8 is detected by sensor S13. Then, by operating the print switch, the fixed light source 101 is turned on, the slide film 103 moves, and the slide film 103 passes through the lens 104.
The image No. 3 exposes the photosensitive sheet 25 on the exposure plate 40 to slit light.

The insertion amount of the color correction filter provided in the lens 9 is determined according to the input of the color adjustment key provided on the color correction operation panel and the sensitivity polarity of the photosensitive sheet 25 (mark attached to the leader sheet). and perform color correction.

The amount of rotation (rotation time) of the photosensitive sheet remaining amount detection pressure roller 47 is measured, and the remaining amount is calculated accordingly. Also, the photosensitive sheet 2 near the end
When the sensor SIO detects the end mark attached to the back side of the copying machine 5, the copying operation being executed at that time is completed and the execution of the next copying operation is prohibited.

A cooling copy lamp 3.4 of the optical system and a cooling fan 90 for cooling the document table 2 are attached to the moving means (wire) of the mirror unit 11. The cooling fan 90 is operated to cool the optical system while scanning the document and moving the optical system.

Image-receiving sheet detection Since the surface of the image-receiving sheet 73 is coated with a developing material (acid) that develops the color of the leuco dye contained in the microcapsules, the front and back surfaces have different reflectances. Using this difference in reflectance, a pair of reflective optical sensors S5. Based on the difference in the output of S6, the distinction between paper and OHP sheets and the front and back sides of each sheet are detected.

FIG. 2 is a perspective view of the slide projector 100,
FIG. 3 is a perspective view showing the drive mechanism of the slide projector 100. The slide projector 100 is arranged at the upper side of the copying machine 1. An insertion opening 110 for inserting the slide film 103 is formed in the upper part of the slide projector 100. Furthermore, a lever 202 that is operated when moving the slide holder 96 is provided on the side surface of the slide projector 100.

The slide film 103 is held between a pair of holding members 102. This holding member 102 is provided on the upper surface of the frame 203. Holding member 102 and frame 203
A slide holder 96 is configured by these. One end of the frame 203 is fixed to a slider 204 that slides on the circumferential surface of a guide 210. The other end of the frame 203 is close to the side surface of the slide projector 100 , and a fixing plate 99 is fixed to the side surface of the projector 100 below the other end of the frame 203 . The fixed plate 99 is formed of, for example, a leaf spring,
- One end is fixed to the side of the body of the slide projector 100, and a curved part 99a is formed at the other end.

Stoppers 211 are provided at both upper and lower ends of the guide 210 to define the range of movement of the slider 204. A portion of the wire 206 is fixed to the slider 204. The wire 206 is stretched around pulleys 212-214. Pulley 212 is coaxially fixed to gear 207, and rotation of drive gear 209 is transmitted to gear 207 via intermediate gears 205 and 208. Drive gear 209
is fixed to the rotating shaft of motor M1. intermediate gear 2
05.208 is coaxially fixed to the case 216. This case 216 is locked to the actuator 215 of the solenoid SQL1. This actuator 215 is biased in the direction of the arrow by a spring (not shown). When the solenoid 5OLI is driven, the actuator 215 moves in the direction of arrow C together with the case 216. When case 216 moves in the direction of arrow C, intermediate gears 205 and 208 mesh with gears 207 and 209, respectively.

Further, the slider 204 includes a switch SW2. SW3 is fixed. Furthermore, the slider 204 has a lever 202.
is supported so as to be swingable within a predetermined range. The lever 202 is a manual moving means and is exposed to the outside from the body of the slide projector 100. This lever 2
By operating 02 in the vertical direction, slide 20
4 slides the guide 210 in the vertical direction. Lever 202
When the slider 204 is operated in the vertical direction, the slider 204 swings within a predetermined range, and this swing is detected by the switches SW2 and SW3.

When a voltage is applied to the solenoid 5OLI, its coil is excited and the actuator 215 moves in the direction of arrow C. (See Figure 3 @). As the actuator 215 moves in the direction of arrow C, the intermediate gears 205 and 208 mesh with the gears 207 and 209, and the rotation of the motor M1 is transmitted to the slider 204 via the wire 206.
1 rotates the slide film 103 into frame 2.
03 and the slider 204.

Furthermore, when the voltage is no longer applied to the solenoid SQL 1, the actuator 21 is activated by the elastic force of the spring (not shown).
5 moves in the direction of the arrow mark. When the actuator 215 moves in the direction of the arrow, the intermediate gears 205 and 208 do not mesh with the gears 207 and 209, and the slider 204 engages with the gear 2.
04 is no longer connected to motor M1. Furthermore lever 2
When either switch SW2 or SW3 is turned on by the operation of switch 02, the circuit including solenoid SQL1 is cut off. Therefore, no voltage is applied to the solenoid 5OLI, and the slider 204 is no longer connected to the motor M1.

As described above, when the operator manually moves the slider 204 up and down by operating the lever 202, the drive of the solenoid 5QL1 is stopped so that the slider 204 and the motor M1 are not connected, and the lever 202 is operated. This is to facilitate the operation of the motor M1 and to prevent the occurrence of a failure of the motor M1. Further, since the slider 204 and the motor M1 are not connected when the power is turned off, damage to the drive mechanism etc. can be prevented even if the lever 202 is accidentally operated while the copying machine is stopped. .

FIG. 4 is a block diagram showing the electrical configuration of the copying machine 1. As shown in FIG. The CPU 81 is connected to the switch SW2 through the I10 interface 84. Detection signals from SW3 and sensors S1 to S18 are input.

Further, a panel controller 87 is connected to the CPU 81 via an I10 interface 84. This panel controller 87 controls the input/output of signals on the operation panel provided in the copying machine 1 . The operation panel is provided with, for example, a mode changeover switch SWI, a print switch 88, a warning lamp 89, and the like. The switch SW1 is a switch related to selection of a slide film copying mode using the slide projector 100. The print switch 88 is a switch that instructs the start of a copying operation. The warning lamp 89 lights up, for example, when it is detected that the mounting state of the slide film 103 is abnormal, and displays the situation to the operator.

The CPtJ81 controls the solenoid driver 85, motor driver 86, etc. based on input data from switches SWI to SW3, print switch 88, sensors S1 to S18, etc. according to a program written in advance in the ROM 82, thereby controlling the copying operation. do. A solenoid SQL 1 is connected to the solenoid driver 85, and the solenoid driver 85 drives the solenoid SQL 1 according to a control signal input from the CPU 81. A motor M1 is connected to the motor driver 86, and the motor driver 86 drives the motor M1 according to a control signal. A part of the memory area of the RAM 83 connected to the CPU 81 is allocated to a working area for outputting control data.

FIG. 5 is a simplified front view for explaining the operation of the slide holder 96. In Figure 5, the dashed dotted line 11
The position indicated by is the mounting position of the slide film 103, the position indicated by a dashed dotted line 12 is the exposure start position of the slide film 103, and the position indicated by a dashed dotted line 13 is the end position of exposure of the slide film 103.

First, at the mounting position iN 1, the slide film 103
is attached to the slide holder 96. At this time frame 2
The other end 203b of 03 is a curved portion 99a of nine fixed plates.
held by. Therefore, slide film 1
03, the slide holder 96 is prevented from being pushed down in the direction shown by arrow C by the force of the operator, and the slide film 103 is securely inserted into the slide holder 9.
6 can be installed.

After mounting the slide film 103, the slide holder 96 is moved along the guide 210 to the exposure start value Nl12 by operating the lever 202 and pushing down the slide holder 96 in the direction of arrow C. At this time, lever 2
02 with a force greater than the force applied to the slide holder 96 when mounting the slide film 103,
The fixed plate 9 is displaced by the other end 203b of the frame 203 in a direction approaching the body of the slide projector 100, and the slide holder 96 can be moved to the exposure start position 12.

Thereafter, the exposure operation is performed while the slide holder 96 is moved to the exposure end position 13 by the drive mechanism shown in FIG. 3 mentioned above. To take out the slide film 103, operate the lever 202 to move the slide holder 96 from the exposure end position 13 to the mounting position 11. To copy the same slide film 103 again, move the lever 202 again by the arrow. The slide holder 96 is moved in the direction of mark C to the exposure start value t12.

Side surface 100a of slide projector 100 and fixing plate 9
9 is selected to be smaller than the distance D2 between the side surface 100a and the holding member 102, the fixed plate 99 is attached to the slide holder 96 between the exposure start position 12 and the exposure end position 13. There is no contact between the two and there is no effect on the exposure operation.

As described above, according to this embodiment, since the slide holder 96 is held by the fixing plate 99 when the slide holder 96 is in the mounting position P1, the slide holder 96 is held by the operator when the slide film 103 is mounted. This prevents the slide film 103 from being pushed down by force, and the operation of mounting the slide film 103 can be performed reliably. Also, an exposure start position 12 and an exposure end position 13 . During this time, the fixed plate 99 does not come into contact with the slide holder 96, and the exposure operation of the slide film 103 is not affected.

Although this embodiment has been described using a copying machine that uses a photocurable photosensitive sheet as a photosensitive material, the slide projector 100 of this embodiment can also be installed in an electrophotographic copying machine equipped with a photoreceptor. be able to.

Effects of the Invention As described above, according to the present invention, by providing the stop member, the holding member is prevented from displacing in the displacement direction when a single-sheet document is loaded, and the single-sheet document can be loaded reliably.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing the basic structure of a copying machine 1 to which a slide projector 00, which is an embodiment of the present invention, is installed; FIG. 2 is a perspective view of the slide projector 100; and FIG.
4 is a block diagram showing the electrical configuration of the copying machine 1 shown in FIG. 1, and FIG. 5 is a front view for explaining the operation of the slide holder 96. .

Claims (1)

[Scope of Claim] A holding device for a single sheet document used in a device for visualizing an optical image of a document, comprising: a guide member extending in a direction intersecting a predetermined optical path; and a guide member slidably attached to the guide member; a holding member that traverses the optical path while holding a single-sheet original and is displaced between a displacement start position and a displacement end position where the single-sheet original is mounted; What is claimed is: 1. A holding device for a single sheet document, comprising: a flexible stop member that comes into contact with the holding device;