JPS5828565B2 - fuchsia sochi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a copying apparatus that projects an image of an original onto copy paper and copies it, and more specifically, relates to an apparatus that observes and copies information recorded on microfilm.

Conventionally, in this type of microfilm reader printer, a paper feeding device feeds the photosensitive paper to the exposure position, a position detection mechanism detects that the photosensitive paper is placed at a predetermined position, and this detection signal activates the paper feeding device. is stopped, the photosensitive paper is exposed to light, and after exposure, the paper feeding device is operated again to feed the photosensitive paper from the exposure position.

Therefore, it is necessary to provide a position detection mechanism and a paper feeding device at the exposure position, which has the drawback of making the structure complicated and large.

In addition, in microfilm, image frames are photographed and recorded vertically or horizontally, so when using this microfilm in a reader printer to copy the projected image of the image frame onto photosensitive paper, the photosensitive paper of the same size is usually kept in a constant state. Therefore, depending on the portrait or landscape orientation of the image frame, the film carrier holding the film must be rotated 90 degrees.

However, when the film carrier is rotated and the image is projected onto a screen for observation, the projected image on the screen is tilted 90 degrees from the normal viewing state, making it very difficult to read the projected image.

In the present invention, paper feed rollers are arranged before and after the exposure position, a holding member for holding the copy paper at the exposure position is movably provided between the paper feed rollers, and one feed roller sends the copy paper to the exposure position, When the rear end of the copy paper passes the feed roller, one end of the copy paper is made to protrude from the holding member, and after exposure, the holding member is moved, and when one end of the copy paper is positioned on the other feed roller, the holding member is moved. It is configured to return to its original position.

Further, the copy paper can be loaded in a vertical or horizontal orientation, and the holding member is configured to have a shape in which the copy paper protrudes in a different position depending on the loading state of the copy paper, and a separate copy paper is placed in the vicinity of the copy paper protrusion position of the holding member. paper feed rollers are arranged so that the image on the screen is always observed in a normal state to obtain a correct copy image.

The present invention will be described in detail below based on the drawings.

FIG. 1 shows a microfilm reader printer, in which a light source device 5 having a light source 2, a condensing lens 3, and a reflecting mirror 4 is arranged at the bottom of a main body 1.

A film carrier 6 having two transparent plates holding the microfilm F between them is arranged so as to be movable in the horizontal direction below the projection lens 7, and the microfilm F is irradiated with light from the light source device 5.

A half mirror 8 is provided obliquely on the optical path of the projection lens 7, and the light reflected by the half mirror 8 is directed toward a transmission screen 9 arranged in front of the main body 1.

Therefore, the selected image frame of the microfilm F is illuminated by the light source device, and the image light passes through the projection lens 7 and is projected onto the screen 9 via the half mirror 8, so that it can be observed.

A paper feed device 10 is arranged at the rear of the main body 1, and the paper feed device 10
is electrophotographic paper P coated with zinc oxide of the same size.
can be loaded horizontally or vertically.

As shown in FIGS. 2 and 3, the paper feeding device 10 has a movable paper holding plate 11.12 having reference frames 111, 12□ and claws 112, 122. Racks 13 and 14 are fixedly installed behind each rank, and an idler gear 15 is rotatably arranged between the ranks 13 and 14.

Therefore, when the paper holding plates 11, 12 are moved in the opposite direction, the idler gear 15 rotates, and the length between the reference frames 11□, 12 can be adjusted to match the width of the photosensitive paper.

When loading photosensitive paper of the same size horizontally, the paper holding plates 11, 12 are spread horizontally to match the width of the photosensitive paper, and the reference frames 111, 12 are moved to the second illustrated position.

In addition, when loading the same photosensitive paper vertically, the paper holding plate 1
1 and 12 to the left and right to match the width of the photosensitive paper, and set the reference frame 11. ．． 12 and 11. are shown by broken lines. ', 12. 'Move to position.

When this paper is loaded into the paper feeder, the lower end of the photosensitive paper engages and is supported by the support plate 16 or 17, thereby positioning the photosensitive paper in the vertical direction.

One support plate 16 engages with the lower end of photosensitive paper when it is loaded horizontally, and the other support plate 17 engages with the lower end of the photosensitive paper when it is loaded vertically.

A spring 18 is attached to the front surface of the paper holding plates 11 and 12, and a pressure plate 19 for receiving the photosensitive paper is fixed to this spring 18.

The photosensitive paper P receives a force pushing up from the back of the pressure plate 19 by the spring 18, and regardless of the number of sheets of photosensitive paper loaded, the photosensitive paper P is pushed up by the claws 112, 122 provided at one end of the reference frame and the paper feed roller 20 that feeds the photosensitive paper. It is pressed.

The paper feed roller 20 is fixed to a rotating shaft 21, and the rotating shaft 21 is connected to a drive motor via a clutch mechanism (not shown).

The lateral ends of the photosensitive paper P engage with friction members 22 and 23, and the friction members 22 and 23 are respectively connected to springs 22 and 23. ．． 23. The levers 22□ and 23□ are biased toward the photosensitive paper by

One friction member 22 engages with both sides of the photosensitive paper when the photosensitive paper is loaded horizontally, and the other friction member 23 engages with both sides of the photosensitive paper when the photosensitive paper is loaded vertically. This is to ensure that one sheet of photosensitive paper is fed.

When the paper feed roller 20 is rotated, a sheet of photosensitive paper is fed from the paper feed device 10, this photosensitive paper passes through the guide plate 251, is then sent to the feed roller 24, passes through the guide plate 252, and is transferred to the charger 26. sent to.

The charger 26 uniformly charges the photosensitive paper to impart photosensitivity.

A paper holder 27 that holds the photosensitive paper at the exposure position and a developing device 2
8 are disposed on the upper part of the main body 1, and before and after the exposure position, a feed roller 29 transports the charged photosensitive paper from the charger 26 to the exposure position, and a feed roller 29 transports the photosensitive paper after exposure from the exposure position to the developing device. Place 30.

As shown in FIGS. 1 and 4, the paper holder 27 includes a suction plate 31 formed in a hollow thin box with suction holes provided on the surface on the exposure side and a suction plate attached to the back of the suction plate 31. It has a fan motor 32.

A stop frame 33 for regulating the movement range of the suction plate 31 is fixed on the back side of the suction plate 31, and the stop frame 33 is pulled to the left in FIG. At this time, one end of the stop frame 33 engages with a stopper 35 fixed to a support plate 34 inside the main body, and the suction plate 31 is positioned near the feed roller 29.

A rank 36 is fixed on the back of the suction plate 31, and this rack 3
6 is engaged with a gear 39 fitted onto a rotating shaft 37 via a slip mechanism 38, and a sprocket gear 41 is attached to one end of the rotating shaft 37 via an electromagnetic clutch 40.

The suction plate 31 has a partially cut-out shape, and an auxiliary feed roller 42 for feeding the photosensitive paper is fixed to the rotating shaft 37 so as to be located within the cut-out portion 311.

The auxiliary feeding roller 42 is in pressure contact with a roller 46 rotatably disposed at one end of a lever 45 which is biased by a spring 43 to rotate clockwise.

Sprocket gears 47, 48 and other sprocket gears 4 are fixed to each rotating shaft of the feed roller 29, 30 that feeds the photosensitive paper.
An endless chain 49 is stretched between the two.

The chain 49 will be described later. The feed rollers 29, 30 are driven by the drive motor, and while the drive motor is driving, the feed rollers 29, 30
rotates all the time, and the auxiliary roller 42 rotates only while the electromagnetic clutch 40 is operating.

The charged photosensitive paper is sent to the exposure position by the feed roller 29, and when the photosensitive paper is sent to the suction plate 31, the back side of the photosensitive paper is sucked to the exposure side surface of the suction plate 31 by the operation of the fan motor 32.

When the photosensitive paper is further fed to the exposure position by the feed roller 29, the photosensitive paper is transported along the surface of the suction plate 31.

When the rear end of the photosensitive paper passes the feed roller 29, the photosensitive paper is automatically stopped while being sucked by the suction plate 31 and placed at a predetermined exposure position.

At this time, due to the shape of the suction plate, the tip of the photosensitive paper P is placed on the suction plate 3.
It is located approximately 1 (11771) from 1.

When the photosensitive paper is loaded horizontally into the paper feeder 10 described above, the photosensitive paper stops at a position where the leading edge of the photosensitive paper P protrudes from the notch 311 of the suction plate (4th position shown in the figure), the paper feeder 10 When loaded vertically.

It stops at a position where the leading edge of the photosensitive paper P' protrudes from the end of the suction plate near the developing device.

The paper holder 27 is movable back and forth between the feed rollers 29 and 30.

That is, when the electromagnetic clutch 40 is activated after exposure, the rotating shaft 37 is rotated via the electromagnetic clutch 40 by the chain 49 that is constantly driven, and thereby the gear 39 and the auxiliary roller 42 are rotated.

As the gear 39 rotates, the clutch 36 that engages with the gear 39 moves rightward, and therefore the suction plate 31 moves toward the developing position.

The tip of the photosensitive paper protruding from the suction plate 31 is attached to the auxiliary roller 4.
When the suction plate 31 is moved to a position where it is inserted between the stopper 2 and the roller 46, the other end of the stopper frame 33 engages with the stopper 35, which causes the slip mechanism 38 to slip and the gear 39 to not rotate. The movement of the suction plate 31 is stopped.

Even if the suction plate 31 stops, the auxiliary roller 4 fixed to the rotating shaft
Since the photosensitive paper 2 is rotating, the photosensitive paper P positioned between both rollers is fed by the auxiliary roller 42 and the roller 46, and further fed to the feeding roller 30 and transferred to the developing device 28.

When the electromagnetic clutch 40 is deactivated at an appropriate time after the leading edge of the photosensitive paper P is positioned between the rollers 42 and 46, the return spring 3 is activated.
4, the suction plate 31 returns to its original position.

Note that when the photosensitive paper is loaded vertically, the leading edge of the photosensitive paper P' sucked by the suction plate 31 is inserted between the feed rollers 30 as the suction plate 31 moves.

The developing device 28 has a liquid developing roller 281, a developing tray 28□ filled with a developing solution, and a guide 283, and develops an electrostatic image formed on photosensitive paper with an electrophotographic developer to obtain a visible image. .

The developed photosensitive paper is sent by a discharge roller 50 connected to a drive motor 1, and is discharged out of the main body 1 through an outlet 51.

The control unit 52 that controls the operation of each of the above-mentioned devices includes one drive motor 53.1 and a cam 54 attached to the rotating shaft of the drive motor 53. -544 and microswitches 551-554 that engage with each cam.

Next, the operation of the reader printer described above will be explained.

First, a microfilm F on which image frames are recorded in a horizontally long manner is used, and accordingly, the paper feeding device 10 is loaded with photosensitive paper in a horizontally long manner.

The desired frame to be printed is selected by moving the film carrier 6 while observing the projected image of the microfilm on the screen 9.

After selecting the desired frame, press the print button to turn off the light source 2 and drive the drive motor 53 to print each cam 5.
Rotate 4□~544.

The drive motor 53 has a cam 54 that controls the drive of the motor. When the cam rotates, the drive state is maintained by the self-lock switch 55, which is opened and the cam rotates once.

At this time, the charger 26, the developing device 28 and the fan motor 3
2 also works.

In addition, the feed roller 24.2 is driven by the drive motor 53.
9.30 and the discharge roller 50 rotate.

Next, the paper feed switch 5 is activated by the cam 542 that controls paper feed.
5□ is activated, thereby rotating the rotation shaft 21 of the paper feeder via the clutch mechanism connected to the rotation shaft 21.

Therefore, the photosensitive paper P is fed upward by one sheet by the rotation of the paper feed roller 20.

The paper feed switch 552 is set so that the leading edge of the photosensitive paper P is connected to the feed roller 24.
If it is inserted between the two, it will become inactive.

Subsequently, the photosensitive paper P is transferred to the charger 26 by the feed roller 24.
and is uniformly charged by a charger 26.

The charged photosensitive paper P is sent to an exposure position by a feed roller 29.

The photosensitive paper P fed into the exposure position is transported along the surface of the suction plate 310 while being attracted to the surface of the suction plate 310 by the appropriate suction force of the fan motor 32, and when the rear end of the photosensitive paper passes the feed roller 29, The photosensitive paper P is automatically stopped while being attracted to the surface of the suction plate 310.

When the photosensitive paper P stops, the leading edge of the photosensitive paper placed at the predetermined exposure position is approximately ICrr from the notch 31 of the suction plate 31.
L protrudes (fourth illustrated position).

Next, the exposure switch 553 is activated by the cam 543 that controls the exposure time, thereby lighting the light source 2 for a certain period of time.

Therefore, the image on the microfilm is projected and exposed onto the photosensitive paper P by the light source 2, the projection lens 7, and the nof mirror 8.

When the exposure is completed, the movement switch 554 is actuated by the cam 554 that controls the movement of the paper holder 27, thereby actuating the electromagnetic clutch 40.

Therefore, the suction plate 31 is moved toward the developing device by the rotation of the gear 39, and when the leading edge of the photosensitive paper P reaches the position of the auxiliary roller 42 and the roller 46, the photosensitive paper
It is put in its mouth and sent again.

At this time, the electromagnetic clutch 40 is deactivated and the suction plate 31 is returned to its original position by the bias of the return spring 34.

Subsequently, the photosensitive paper P is sent to the feed roller 30 and fed into the developing device 28, and then the photosensitive paper developed by the developing device is ejected from the ejection port 51 by the ejecting roller 50.

When the photosensitive paper is ejected, the cam 51. The drive motor 53 stops driving upon completion of one rotation.

When the image frames are recorded on the microfilm in a vertically long manner, the photosensitive paper is loaded in the paper feeding device 10 in a vertically long manner, and the image can be normally copied in the same manner as described above.

FIG. 5 shows another embodiment of the paper holder, which is applied when photosensitive paper is loaded vertically and copies are made.

In FIG. 5, the suction plate 31' is configured to have a rectangular shape, unlike the previous embodiment, and when the photosensitive paper is placed at the exposure position, the tip of the photosensitive paper P' adsorbed to the surface of the suction plate 31 is attached to the suction plate 31. protruding from the tip.

In the above embodiment, photosensitive paper of the same size is loaded in either horizontal or vertical orientation, but photosensitive paper of different sizes can be appropriately selected for copying.

Although the above embodiments described reader printers using transparent photographic film, the present invention also applies to similar general photographs,
It can also be fully applied to copying machines.

As described above, the present invention allows photosensitive paper to be positioned with a simple device, and also allows correct copying to be performed using photosensitive paper of the same size in landscape or portrait orientation.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional configuration diagram of a reader printer to which the present invention is applied, FIG. 2 is a front view of a paper feeding device, FIG. 3 is a cross-sectional configuration diagram of a paper feeding device, and FIG. 4 is a perspective view of a paper holder. FIG. 5 is a perspective view showing another embodiment of the paper holder. 5... Light source device, 6... Film carrier, 7... Projection lens, 9... Screen, 10... Paper feeding device, 26...
Charger, 24, 29, 30...Feed roller, 2
7...paper holder, 28...developing device.

Claims (1)

[Scope of Claims] 1 Paper feed rollers are arranged before and after the exposure position, a holding member for holding the copy paper at the exposure position is movably provided between the paper feed rollers, and the copy paper is moved by one paper feed roller. feeding the copy paper to an exposure position, and when the trailing edge of the copy paper passes the feeding roller, one end of the copy paper protrudes from the holding member;
A copying apparatus configured to move a holding member after exposure and return the holding member to its original position when one end of copy paper is positioned on the other paper feed roller. 2. In the specified invention, the copy paper can be loaded vertically or horizontally, the holding member is configured to have a shape in which the copy paper protrudes from a different position depending on the loaded state of the copy paper, and the copy paper of the holding member A copying machine in which a separate feed roller is arranged near the protruding position.