JP2561345B2 - Reader printer - Google Patents

Description

TECHNICAL FIELD The present invention relates to a reader printer that projects an image of a microfilm on a screen or a printer.

[Prior Art] FIG. 6 shows an example of a reader / printer having a conventional microfilm automatic searcher. This is an automatic microfilm searcher capable of feeding and searching roll-shaped microfilms. The microfilm F wound on the supply reel 10 passes between the upper glass 14 and the lower glass 15 placed in parallel with each other via the roller 12, and is wound onto the take-up reel 11 via the roller 13. In addition to the images, the microfilm F is provided with counting marks m corresponding to each image. By counting the counting marks m by a detection unit (not shown), the microfilm is stopped at a desired position. be able to.

On the other hand, the microfilm automatic search machine is detachable from the reader printer. The reader printer collects light from a lamp (not shown) with a condenser lens L,
The image of the microfilm F held between the upper glass 14 and the lower glass 15 is irradiated and enlarged by the projection lens 1. After this,
When the image of the microfilm F is projected in the reader state, that is, the screen S, the projection image is reflected by the mirror 7, the mirror 8 and the mirror 9 and projected on the screen because the rotating mirror 2 faces slightly downward. On the other hand, in the print state, that is, the image of the microfilm F is projected on the photosensitive drum 6,
To print out the image on the photosensitive drum onto the transfer paper, rotate the rotating mirror 2 in the X ₁ direction and then reverse it to X ₂
Rotate in the direction of. At this time, the projected images reflected by the mirrors 3, 4, and 5 are sequentially projected on the photosensitive drum 6.

Generally, when the operator inputs the address of an image to be read or printed from a keyboard (not shown), the microfilm F starts moving. At the same time, a detection unit (not shown) starts counting the marks m provided on each frame of the microfilm, and when the desired address is reached, the microfilm F is stopped and the retrieved image is projected on the screen S.

In this case, if the projection image during the film search is continuously projected on the screen S, the operator in front of the screen becomes tired of eyes and gradually gets irritated. To prevent this,
Conventionally, the shutter 101 is arranged on the projection lens 1. The shutter 101 rotates about the axis b to project the image of the microfilm F on the screen S, the dotted line position when projecting on the photoconductor 6, and the solid line position when searching for the microfilm F. I was switching to shut off.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional example, there are drawbacks that a drive source for moving the shutter and a drive mechanism are required, resulting in a cost increase and a complicated structure.

[Means and Actions for Solving the Problems] According to the present invention, in a reader printer that projects an image of a microfilm onto a screen and a printer, a movable mirror that reflects the image light of the microfilm onto the screen or the printer, A reader optical system that guides the image light of the microfilm to the screen when the mirror is in the first position, and a printer optical system that guides the image light of the microfilm to the printer when the mirror is in the second position. A driving means for moving the mirror, and a transfer means for transferring the microfilm along the projection position, and by moving the mirror to a position different from the first position while the microfilm is being transferred, Prevent the image light from being projected onto the upper part of the film, so that the operator's eyes are not It was designed to eliminate LA.

[Examples] Hereinafter, the present invention will be described based on illustrated examples.

FIG. 1 is a perspective view showing the optical arrangement of an embodiment of the information recording apparatus according to the present invention. In the figure, F is a micro film as an information recording medium, a lamp L for illumination is provided below the micro film, and a projection lens 1 for enlarging an image of the film F is provided above the micro film F. Is provided. Reference numeral 2 denotes a rotary mirror that switches between the print system and the reader system and rotates and scans during image recording, and is connected to a mirror driving means (not shown). Numerals 3, 4 and 5 are fixed mirrors as reflection mirrors for guiding the image light reflected by the rotating mirror 2 to the photosensitive drum 6 as an image recording medium at the time of image recording, and the optical axis l of the image light reflected by the rotating mirror 2 is In order to keep the mirrors horizontal, the mirrors 3, 4 and 5 are arranged at the same height as the rotary mirror 2 in the main body of the apparatus. An exposure shutter 20 is arranged directly above the photosensitive drum 6 so as to move in the arrow direction. 7,
Reference numerals 8 and 9 denote reader-system fixed mirrors that guide image light to the screen S. The mirror 7 is provided below the rotating mirror 2, and the mirror 8 is provided above the mirror 7 in the vertical direction. It is arranged so as to sandwich the optical axis 1 by 8.

The microfilm F passes through the roller 12 and the projection position (illumination position) between the upper glass 14 and the lower glass 15 placed in parallel with each other, and is further taken up by the take-up reel 11 via the roller 13. In addition to the images, the microfilm F is provided with counting marks m corresponding to each image. By counting the counting marks m by a detection unit (not shown), the microfilm can be stopped at a desired position. it can.

In the above-mentioned structure, retrieval, projection and recording of the image on the microfilm F are carried out as follows.

When the operator inputs the address of the image to be read or printed from the keyboard shown in FIG. 2, the reel driving motor M1 is driven and the microfilm F starts moving, and at the same time, the mark detector D is used for counting. The mark m is detected, and the detected mark is counted by the counter in the control circuit C.

Meanwhile driven motor M2 for rotating the rotary mirror 2 at the same time driving start and the motor M1, the rotary mirror 2 rotates in the X ₁ direction, the projected image of the microfilm F is stopped in a state that is not projected on the screen S. In this state, the optical path to the screen is blocked and nothing is projected on the screen S, so the screen S is dark. At this time, the exposure shutter 20 is positioned so as to block the optical path between the mirror 5 and the photosensitive drum 6 as shown in FIG. 1, so that the direction of the rotary mirror 2 changes and the optical path is directed toward the photoconductor 6. When directed, the light is not projected onto the photoconductor 6.

When the microfilm F being searched reaches the desired address, the motor M1 is stopped and the microfilm F is stopped. At the same time, the motor M2 reverses and the rotating mirror 2 moves to X ₂
It rotates in the direction, and stops at the first position where the original reader state facing the mirror 7, that is, the image of the microfilm is projected on the screen. Therefore, the image of the desired address is reflected by the mirror 7 and projected on the screen S via the mirrors 8 and 9. This flow chart is shown in FIG.

Next, at the time of image recording, the rotating mirror 2 is rotated in the direction of the arrow X ₁ about the rotation axis a, and the mirror 2 is set so as to face upward at an angle of 45 ° with the horizontal direction.
That is, when the mirror 2 is set to the second position, the image on the microfilm is directed to the photosensitive drum 6 via the mirrors 3, 4, and 5. After that, the rotating mirror 2 is rotated in the arrow X ₂ direction, and the photosensitive drum 6 is rotated in the arrow Y direction in synchronization with this rotation. At the same time, the exposure shutter 20 is moved in the direction of the arrow and stopped at a position away from the optical path. Therefore, due to the synchronized rotation of the rotary mirror 2 and the photosensitive drum 6, the optical image of the microfilm F is projected onto the photosensitive drum 6 via the mirrors 3, 4 and 5, and an electrostatic latent image is formed on the drum 6. To be done.

[Other Embodiments] FIG. 4 is a cross-sectional view showing a second embodiment. In the leader state, the movable mirrors 202, 203 are respectively at the first positions 202B, 20 indicated by dotted lines.
Since it is retracted to 3b, the image of the microfilm F magnified by the projection lens 201 is reflected by the mirrors 205 and 206 and projected on the screen S. On the other hand, in the printing state, the movable mirrors 202 and 203 move integrally in the arrow direction from positions further left of the second positions 202a and 203a indicated by solid lines, and at the same time, the exposure shutter 220 moves in the arrow direction and moves out of the optical path, and the photosensitive drum 204 also moves in the arrow direction. Exposure is performed by rotating in synchronization. During the film search (transfer), the moving mirror 202,203
Stop after moving to the positions 202a and 203a indicated by solid lines, respectively. Therefore, the moving mirror 202a blocks the optical path of the reader,
The image of the microfilm F is not projected on the screen S. Also, since the exposure shutter 220 is also closed,
It is not projected onto the photosensitive drum 204 either.

FIG. 5 is a sectional view showing the third embodiment. In the reader state, the oscillating mirror 306 is at the first position 306b indicated by the dotted line, so the image of the microfilm F magnified by the projection lens 301 is reflected by the rotating mirror 302 and the oscillating mirror 306b mirror 307 and projected on the screen S. To be done. On the other hand, in the printing state, the swinging mirror 306 is moved to the second position 306a indicated by the solid line by the driving means (not shown). From this state, the rotary mirror 302 starts to rotate in the arrow direction from a state in which the rotary mirror 302 faces slightly downward from the illustrated position. At the same time, the exposure shutter 32
0 moves in the arrow direction and deviates from the optical path, and the photosensitive drum 305 also starts rotating in synchronization with the arrow direction. Therefore the projection lens 301
The image of Microfilm F magnified by
2. Reflected by the mirrors 303 and 304 and exposed on the photosensitive drum 305.

Since the swing mirror 306 is moved to and held at the second position 306a indicated by the solid line during the film search, the image of the microfilm F is not projected on the screen S. Since the exposure shutter 320 is also closed, it is not projected onto the photosensitive drum 305.

As a fourth embodiment, in the first embodiment, the roll-shaped long film is used as the microfilm F, but here, a microfitting machine in which a group of images is recorded in a matrix on one card-shaped sheet. It can also be applied to a micro-fish search machine using. The same applies to the case of this automatic search machine for micro-future, and the image of the micro-future is not projected on the screen S during the search.

Further, the present invention can be applied not only to an automatic search machine but also to an automatic film moving / conveying apparatus having no search function.

[Advantages of the Invention] As described above, by moving the mirror during the film transfer, the image of the film is not projected on the screen, so that the operator does not get tired or irritated. Further, since the mirror is moved when it is moved during printing, there is no need for a separate drive source or drive means as in the conventional case, and the cost is not increased.

[Brief description of drawings]

FIG. 1 is a perspective view of a reader printer embodying the present invention, FIG. 2 is a block diagram of a control circuit, FIG. 3 is a flow chart at the time of retrieval, which is the essential point of the present invention, and FIG. 4 is a second embodiment. 5 is a sectional view of the leader printer which is the third embodiment, FIG. 5 is a sectional view of the leader printer which is the third embodiment, and FIG. 6 is a perspective view of the conventional leader printer. 2 ... Rotating mirror F ... Micro film S ... Screen m ... Counting mark

Claims (1)

(57) [Claims] 1. A reader printer for projecting an image of a microfilm onto a screen and a printer, wherein a movable mirror for reflecting the image light of the microfilm to the screen or the printer, and a micro mirror when the mirror is placed in a first position. A reader optical system that guides the image light of the film to the screen, a printer optical system that guides the image light of the microfilm to the printer when the mirror is placed in the second position, a driving unit that moves the mirror, and a microfilm. And a transfer means for transferring the image light along the projection position, and during the transfer of the microfilm, the mirror is moved to a position different from the first position so that the image light is not projected on the screen. Leader printer to do.