JPS5864568A - Microfilm retrieval device - Google Patents

Abstract

PURPOSE:To discriminate a retrieval mode on the basis of the dislay state of a display means for displaying a retrieval number, and to eliminate the need for a special display device, by providing and making the display means effective and ineffective in local mode and remote mode respectively. CONSTITUTION:The control part of a microfilm retrieval device is provided with a controller 100 equipped with a microcomputer. To a data bus 115 connected to this device 100, a display device D arranged on an operation surface and a printing part 1 connected to a control mode selection switch S1, a retrieval mode selection switch S2, etc., are connected through an output port 113. Further, a connector C connected to a host computer 120 is connected through an interface 114. Then, a retrieval number indicated with the switch S2 is displayed on the display device D, which is put in operation when the switch S1 indicates a local mode and turned off when it indicates a remote mode; and the retrieval mode is discriminated according to the display state of the display device D, and thus the need for a special display device is eliminated, thereby simplifying the constitution of the device.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a microfilm retrieval device, and more particularly to a retrieval device connectable to an external computer.

When connecting a conventional microfilm retrieval device and an external computer, JIS C6361 or EIAR8
A common method is to provide an interface according to a standard such as H.232C. CAR (Computer
It is called the As1sted Retrieval) system. Moreover, in the Una CAR system,
If the microfilm retrieval device is connected to an external computer and the retrieval operation is controlled by that computer.
The microfilm retrieval device can control the retrieval operation by itself (remote mode), and local mode (1), in which the retrieval operation is controlled by the microfilm retrieval device alone, can be combined. .

The present invention provides a microfilm retrieval device 1t that can select between two modes, without adding a new display to indicate the selection state of the two modes (remote/local). The present invention provides a microfilm retrieval device that can display microfilms.

In the case of a normal microfilm retrieval device, if the number of the frame or item to be searched on the microfilm is entered from the keyboard and the entered number mode is selected, the display is disabled (does not operate). This makes it possible to display which mode the microfilm retrieval device is in without having to prepare a special display.

The present invention will be explained below using specific examples shown in the drawings.

FIG. 1 shows the entire structure of a microfilm reader printer having a retrieval device to which the present invention is applied. In the figure, the entire apparatus is composed of a printing section 1, an image observation section 2 provided above the printing section 1, and a control section 3. At the left end of the machine box 4 of the print section 1, a cassette 5 for storing a large number of copies and a copy paper ejection tray 6 are arranged. It can be replaced with a cassette containing 1. The print section 1 has various image forming means,
The projected image on the microfilm is copied onto the copy paper fed from the cassette 5, and the copy paper on which the copy image is formed is discharged onto the discharge tray 6 with the image formation direction facing upward. The machine box 7 of the observation section 2 is equipped with a transmission screen 8 onto which the projected image of the microfilm is projected, and an optical system that projects the image onto the screen 8. The enlarged image of the microfilm is observed on the screen 8. be able to.

The control unit 3 includes a power switch 10 for supplying power to the entire device g, a print button 11 for instructing the printing operation, numeric keys for inputting the row number or frame number of desired information to be searched, and search. Search person key with start key-1
2, a copy number setting dial 13 for setting the number of copies of information to be copied, a control mode selection switch S1 for switching between remote mode and 1-cal mode, and a search mode selection switch S1 for switching between % piece search mode and item search mode; A control device is provided which includes a display DX for displaying piece numbers and case numbers, and a connector C1 microcomputer for connection to a host computer to be described later.

As shown in FIG. 2, the printing unit 1 has a photosensitive drum 15 with a transparent insulating layer formed on a photoconductive photosensitive layer.The photosensitive drum 15 rotates at a constant speed in the direction of the arrow, When the image of the microfilm is positively charged by the microfilm device 16 and reaches the exposure section 17 where it is projected, the image is exposed to slit light and at the same time the AC band is charged by the AC device 18.
Receives electrical charge. Then, the entire surface is exposed by the full-surface exposure lamp 19 to form a silent TM image on the drum surface, and the latent image is visualized by the developing device 20. Next, the excess developer on the drum is squeezed out by a negative charger 21 without disturbing the image.

The paper feed rollers 22, 23, 24 then feed the cassette 5.
A sheet of copy paper (transfer paper) S sent from the photosensitive drum 15 is brought into close contact with the photosensitive drum 15, and the image on the drum 15 is transferred onto the copy paper S by the transfer band '1 device 25. After the transfer, the copy paper S is separated from the drum 15 by the separation belt 26 and guided to a dry fixing station t8A27. On the other hand, the drum 15 is wiped of residual toner and developer by a roller 28 which is pressed against the surface thereof, and the next printing operation is repeated again.

Note that the paper feed row 222 is always rotated 1-, and the drum 1
When the copy paper 5 reaches a predetermined position, it descends in response to a signal generated and makes contact with the topmost copy paper S in the cassette 5. After feeding one copy paper from the cassette, it rises again and Paper feeding is performed by timing rollers 23,24.

In the drying and fixing section 27, the copy M'c S is fed while being brought into close contact with a heated hot plate 29, and is dried and fixed. Dry and fixed copy paper S id ejection roller 30.31
1. Ru.

The observation unit 2 includes a projection lens 34, mirrors 35, 36, 37, . . . as shown in FIG. The microfilm F has a half mirror 38, and an illumination lamp 39 disposed inside the machine box 4 of the printing section. The image of the microfilm illuminated by the condenser lens 40 is shown by the optical path a (-
passes through the projection lens 34 and mirrors 35, 36 .
: 37, the entire image is enlarged and projected onto the screen 8, or the optical path passes through the projection lens 34 as shown above, passes through a mirror 35° half mirror 389, a narrow mirror 41, and a shutter (not shown), and then onto the photosensitive drum 15. A part of the image is enlarged and projected in the form of a slit. Note that instead of the half mirror, a normal mirror may be moved in and out of the optical path. In this case, the shutter may not be provided. In FIGS. 1 and 4, movable members 47 and 48 are movably disposed on a pair of rails 45 and 46 that are arranged in parallel at the top of the machine box 4 of the printing section. The movable members 47, 48 fixedly support the carrier holder 50, and reciprocate along the rails 47, 48 together with the carrier holder 50 by a drive mechanism to be described later. As shown in FIG. 4, the carrier holding table 50 has a long hole 51 and a rectangular light guide hole 52 provided at a position corresponding to the condenser lens 40 in the machine box 4. 5
2 is a screw hole for fixing a microfilm carrier, which will be described later.

In FIG. 4, the g power of a motor 60 driven at a constant speed is transmitted to a reduction sprocket gear 62 via a reduction mechanism 61, and this reduction sprocket gear 62. An endless chain 68 is passed between the other sprocket gears 63 to 67. Sprocket gears 65 and 66 each rotate 1;
11, and the other sprocket gear 6G is coupled to its rotating shaft via a forward clutch 71,
When clutch 70.71 turns on, the corresponding sprocket gear 65.66 turns! When the auxiliary shafts are respectively Ml<dynamically coupled and the clutches 70.71 are turned off, the valley sprocket gears 65.66 rotate freely relative to the rotation shafts. A sprocket gear 72,73 is fixed to one end of each rotating shaft of each tin rocket gear 65,66, and an endless chain 74 is stretched between the sprocket gears 72,73. A small gear 75 fixed to the end of the rotating shaft of the sprocket gear 66 and a large gear 76 are in mesh with each other, and a wire 79 is wound around a pulley 77 fixed to the large gear 76 and an idler pulley 78. Both ends of are fixed to the pins 80, 81 of the movable member 47. wire 7
9 is a small gear 750, which is a movable member 47.48 depending on the rotation direction.
It is wound so that it moves back and forth. Clutch 70. '
11 is selectively operated, and when the front clutch 71 is turned on in response to a print start command signal, which will be described later, the sprocket gear 66 and its rotation shaft are connected, and the small gear 75. The large gear 76 rotates, and the carrier holding table 50 moves forward by the wire 79. On the other hand, when the reverse clutch 70 is turned on in response to an exposure end signal, which will be described later, the sprocket gear 65 and its rotating shaft are connected, and the rotating shaft of the sprocket gear 660 rotates via the chain 74, and the small gear 75
．． The carrier holding table 50 is moved back by the large gear 76 and the wire 79. When both clutches 70, 71 are off, the rotating shafts 65, 66 do not rotate, and therefore the gears 75, 76 do not rotate, so the carrier holding table 50 stops.

The drum driving tin rocket gear 67 is coupled to an intermediate gear 83, and the intermediate gear 83 is a gear 8 integrated with the photosensitive drum 15.
It meshes with 4. Therefore, when the chain 68 is driven, the photosensitive drum 15 rotates in the direction of arrow C at a constant speed.

Switch S+o located at the top of machine box 4! So detects the position of the carrier holding stand 50, and when the microswitch SIO detects the carrier holding stand 50, the carrier holding stand 50 is at the home position, and when the carrier holding stand 50 is located at the home position, The microfilm image is projected onto a screen and can be viewed. The carrier holding stand 50 is the forward clutch 7
When a print start command signal is sent to 1, it moves forward from this home position and starts exposing the microfilm.
When the exposure is completed and the microswitch Sl+ detects the carrier holding table 50, an exposure completion signal from the microswitch is sent to the reverse clutch 70, and the carrier holding table 50 moves backward. When the microswitch slG detects the carrier holding stand 50, the reverse clutch 70 is turned off, and the carrier holding stand 50 stops at the home position.

FIG. 5 shows a microfilm carrier fixedly held on the carrier holding stand 50, and the microfilm carrier 90 is connected to the long hole 51 and the screw hole
2 open CI 91. screw hole 92
The carrier 90 is attached to the carrier holding base 5 by screws.
Fixed to 0. Furthermore, the film carrier 90 includes a fixing plate 94 for positioning the film cartridge 93, film feed rollers 95, 96. Film guide roller 97・
98. It has a film take-up reel 99, and film feed rollers 95 and 96 are connected to a film drive motor (not shown) and rotate forward or reverse depending on the rotation direction of the motor.

The spool shaft of the cartridge 93 is connected to the take-up motor when mounted on the carrier 90, and also connected to the take-up reel 9.
The spool shaft of the cartridge 93 and the spool shaft of the take-up reel 99 are connected to a take-up motor, and in order to apply a constant tension to the microfilm F between them, the spool shaft of the cartridge 93 and the spool shaft of the take-up reel 99 are rotated in opposite directions by each take-up motor. A driving force is applied to rotate in the direction. The microfilm F wound around the spool shaft of the cartridge 93 leaves the cartridge 93, passes through feed rollers 95 and 96, passes through guide rollers 97 and 98, and is wound onto a take-up reel 99.

The microfilm F is moved forward or backward by a feed roller '15.96. From the cartridge 93 to the take-up reel 9
9 is referred to as forward feeding, and conversely, feeding from take-up reel 99 to carriage 93 is referred to as reverse feeding.

When the microfilm F passes over the aperture 91, the lamp 3
It is illuminated by light from 9. Mark detection devices 100 and 101 are placed on both sides of the microfilm feeding path, and detect marks provided on both sides of the film F. As shown in Figure 6, the microfilm F has information recorded on each frame f arranged in a line on the film, and a piece mark song is placed corresponding to each frame, so that the information inside is related. A corresponding mark m2 is placed at the first frame of one unit of information. Piece marks and item marks are placed on opposite sides.

In FIG. 6, pieces A, A2. B, ・B2, and B constitute one unit of related information, each piece is marked with a piece mark m1, and the first pieces of one unit of information, At and B+, are marked with a piece mark m2. . Note that one unit of information may consist of only one frame instead of a plurality of pieces, but the present invention can of course be applied to such information as well.

Further, the microfilm F is assumed to have its leading edge on the right side in FIG. 6, and is wound onto a take-up reel 99 from the leading edge of the film, and information is imprinted onto the film in page order from the leading edge of the film. 100 of the mark detection devices are piece mark detectors for detecting piece marks m, 1
Reference numeral 01 denotes a subject mark detector for detecting the subject mark m2, each of which has a photoelectric conversion element.

When the carrier holding stand 50 is at the home position, the image of the frame of the second microfilm F is projected onto the screen 8 via the optical system.

FIG. 7 shows the configuration of the control unit of the reader printer, in which 110 is a control unit having a microcomputer (hereinafter abbreviated as CI'U), 111 is a memory 1
112 is an input port, 113 is an output port, and 114 is an interface.

The CPU 110 is the print unit 1. Each operating part of the image observation unit & search device is operated in sequence in response to an input signal,
Deactivate.

The program is stored in memo IJ-111 and is
The PU sequentially reads programs and controls printing processes, search processes, etc. in a predetermined sequence. During this time, data is exchanged through the data bus 115.

The input boat 112 has a print button 11. Search person key 12. Number of copies setting dial 13. Control mode selection switch S++ Search mode selection switch St+Piece mark detector 1001 items Connected to mark detector 101 and print unit 1, and sends input signals and the like to CPU 110.

Print button 11. Search person key 12. Number of copies setting dial 13. The search mode selection switch S1 is the control mode selection switch S, and is not connected to the input port 112 (indicated by a broken line) when switched to the remote mode, and connected to the input port 112 when switched to the local mode. (solid line water).

The output port 113 is connected to the print section 11 display and the film feed control section 116, and sends the output signal of the CPU 110 to the print section 11 display and the film feed control section 116.

When the control mode selection switch S2 is switched to remote mode, the display is not connected to the output port 113 (dashed line), and when it is switched to local mode, it is in a connected state (solid line water) to the output port 113. )It is in.

120 is an external host computer; 121 is an input device for inputting data to the host computer 120; 122
is a large capacity memory connected to the host computer 120. The host computer 120 is connected to the connector C via the interface 123 or is disconnected from the connector C. When the host computer 120 is connected to the connector C, it is connected to the control mode selection switch S, and when it is switched to the remote mode, it is connected to the interface 114. be done.

When the control mode selection switch sI is switched to the local mode, the interface 114 is not connected to the connector C (indicated by a broken line).0 If the frame number or item number of the desired image to be searched is known from the index, The control mode selection switch S1 is switched to the local mode, and the search process, printing process, etc. are controlled by C1) UIIO.

If you do not know the frame number or item number of the desired image to be searched, press the control mode selection switch S.

switch to remote mode, host computer 120
Connect the connector CK to this host computer 12.
0 controls the search process, printing process, etc.

The large capacity memory 122 stores keywords, frame numbers, or case numbers of each image on the microfilm.

Search data such as cartridge numbers, search sequence programs, etc. are stored.

The interfaces 114 and 123 are of the same standard.

Next, the search operation and print operation by the reader printer will be explained with reference to the flowcharts of FIGS. 8 to 11.

First, the local mode will be described with reference to FIGS. 8 and 9. First, in Figure 8, the CPU
110 searches which mode is selected with the search mode selection switch S, and when the piece search mode is selected, the currently searched image stored in the first area α of the memo IJ-111, that is, the current Piece mark detector 10
The frame number A of the image placed at the detection position 0 is displayed on the display. If you select search mode, memory 1
The image number [3] of the image stored in the second area No. 11, that is, the image placed at the detection position of the current mark detector 101, is displayed on the display.

Next, search which mode is selected using the control mode selection switch S1. If the remote mode is selected, the process moves to the remote operation flow shown in Figure 11, and if the local mode is selected, the search key 12 is used. Search to see if it was pressed.

When the local mode is selected, the input/output lines of the input boat 112 and output port 113 are connected to solid water. When the user selects the local mode and presses a number key to input the frame number or item number of the desired image to be searched, this input number N will be displayed on the display and the memo IJ-111 will be displayed.
It is stored in the third area C of. If the search button 12 is not pressed, a search is made to see if the print button 11 has been pressed. returns to the beginning and repeats the same operation.

When the search start key is pressed after pressing the number key, the process moves to the search operation flow shown in FIG. CPU110 is memory 1 when piece mode is selected with search mode selection switch S2.
11 is set, and the frame number A stored in the first area α of the memory 111 is transferred to the buffer d of the memory 111.

When the case mode is selected with the switch S2, the 7 lag e is reset and the case number B stored in the second area S of the memory 111 is transferred to the buffer d of the memo IJ-111. However, the CPU 110 calculates the difference between the input number N stored in the third area C of the memo IJ-111 and the number A or B stored in the buffer d, and stores the calculated value N' in the memory 111. is stored in the counter f. If the content of the counter f is rOJ(N'-0), the currently searched non-image is the desired image and there is no need to feed the film, so the process returns to the beginning without operating anything. Therefore, a desired image is projected onto the screen 8. If the content of the counter f is not "0", the CPU 110 searches for the positive or negative of the content of the counter f, that is, the positive or negative of the calculated value, and if it is positive, the CPU 110 searches for the positive or negative of the content of the counter f, and if it is positive, the CPU 110 controls the film feed rollers 95, 96 via the film feed control section 116. The motor that drives the motor rotates in the forward direction, and when it is negative, the motor rotates in the reverse direction. , Here, a case will be described in which the microfilm F is sequentially fed by rotating the motor in normal rotation l~.

When the film F is forwarded by normal rotation of the motor, CP
U 110 searches whether the piece mark detector 100 detects a piece mark, and rotates the motor in the forward direction until the piece mark is detected. When the piece mark detector 100 detects a piece mark, the piece number stored in the first area α of the memory 111 is changed to [A+1j by J-1-IJ, and the piece mark detector 101 detects the piece mark. Search for something.

When the case mark detector 101 detects a case mark, the case number stored in the second area of the memo IJ-111 is r
+IJ to rB+IJ. When the subject mark is not detected, a search is made to see if the flag e in the memory 111 is set, and if the flag e is set, the counter f in the memory 111 is r-IJ and l-N'-IJ
and then searches to see if the contents of the counter are [01].

If the content of the counter f is r OJ (N'-1=O'), the motor is stopped and the process returns to the beginning. Therefore, when the motor stops, the image of the desired object or piece is placed at the projection position of the projection lens, and the search for the desired image is completed with this image projected onto the screen.

If the piece mark and the issue mark are detected at the same time, when the issue mark detector 101 detects the issue mark, the counter f
is set to "-1". If the contents of the counter do not become 1°0 when the counter f is r-IJed, the motor is continued to rotate in the normal direction, and the above operation is repeated until the contents of the counter become "0". Therefore, the first memory
The frame number of the image located at the mark detection position, that is, the projection position is stored in the area α, and the frame number of the image located at the mark detection position is stored in the second area α. Also, if you switch the search mode selection switch S2 to frame mode while the film is stopped, the frame number of the currently searched image will be displayed on the display, and if you switch to frame mode, the display will show the frame number of the currently searched image. Displays the number of the current image.

When the motor is reversed, the number stored in the first area or the second area of the memo IJ-111 is incremented by "1" when a mark is detected. The following description is omitted since it is the same as in the case of normal rotation.

Next, the printing operation when the print button 11 is pressed will be explained with reference to FIG.

When the print button 11 is pressed, the number of copies set with the number of copies setting dial 13 is stored in the counter f of the memory 111. Next, the CPU 110 searches the state of the search mode selection switch S2, and sends a print start command to the print unit 1 if it is switched to the frame search mode. This causes the print section 1 to start a copying sequence and make a copy of the image located at the projection position. When printing is finished, set the counter f to "-1", then set the counter f
Search whether the content of is "0".

If the counter f is "10", the process returns to the beginning, and if it is not "0", issue the print start command again and repeat the copying sequence. When the above operation is repeated for the set number of copies, the counter f becomes "10" and the required number of copies is reached. Once all copying is complete, return to the beginning.

When the search mode selection switch S2 is switched to the search mode, the CPU 110 normally rotates the motor that drives the film feed rollers 95 and 96 via the film feed control section 116 to sequentially feed the film. When the issue mark detector 101 detects an issue mark during forward feeding, the motor is stopped, and then this motor is reversed to reverse feed the film. When the frame mark detector 100 detects a frame mark while the film is being fed backwards, the motor is stopped, a print start command is sent to the printing section 1, and the copying sequence is started. When copying is completed, the motor is reversed again and the above operation is repeated.

When the frame mark detector 100 detects a frame mark and the frame mark detector 101 detects a frame mark at the same time, the motor is stopped (7), a print start command is issued, and when copying is completed, the counter f is activated. Search whether the content is l-OJ. Counter f is “0”
”, return to the beginning, and if it is not “0”, the motor is rotated in the normal direction again and the above operation is repeated. When the above operation is repeated for the set number of copies for one image group, the counter f becomes 10'' and all necessary copies are completed. As described above, when printing is performed in the item search mode, multiple images included in the desired item are printed in order from the last page, and the set number of copies arranged in page order are automatically obtained on the output tray 6. It will be done.

The above is the explanation for the local mode.

Next, the case where the control mode selection switch S1 is switched to the remote mode will be described with reference to FIG. 11.

When the external computer 120 is connected to the connector C via the interface 123 and the switch Sl is switched to remote mode, the print button 11, the search manual key 129, the copy number setting dial 13°, and the search mode selection switch S2 are released from the input boat 112. (becomes in a disconnected state), the display device is separated from the output port 113, and a search process is performed.

The printing process and the like are controlled by the computer 120.

In order to search for a desired image, the user inputs search items for the desired image, such as keywords, into the input device 121. As a result, a computer program of 120 yen is activated,
Computer 120 searches memory 122 for an image corresponding to the input keyword. The memory 122 consists of disks, floppies, etc.
When the computer 120, which stores the keyword, image number, etc. of each image, manually pushes out the image corresponding to the keyword from the memo 'J-122, the frame number 1 of the image is
Outputs a code signal representing the case number, etc. In this example, the numerical code represents the image number, the ``1F'' code represents the item search mode, the ``P'' code represents the frame search mode, the ``S'' code represents the search start command, and the rcj code represents the print command. .

When computer 120 outputs a code signal, this code signal is sent to interface 123 . The computer 120 first outputs a numeric code, and then stores this number N in the third area C of the memo IJ-111. When the code is output, the 7 lag e in the memory 111 is reset (-1f" P l When the code is output, the flag e is set. Therefore, the flag e is set/reset state.
One of the search modes is automatically selected. When the "S" code is output, the process moves to the search operation flow of A or I3 in FIG. 9 depending on the state of the flag e. The following search operation (1':l) is performed in the same search sequence as described above, but the search process is controlled by the computer 120 instead of the CPU 110.

If you output the “C” code without outputting the “S” code, it will be 7.
Depending on the state of the lag e, the process moves to the print operation flow of Ct to D in FIG. The following printing operation is performed in the same copying sequence as above, but the printing process is performed by CPU 1.
10 is controlled by a computer 120.

In the above embodiment, the control program of the microfilm retrieval device and the information for temporary storage are in the same memory
111, the control program is stored in ROM (Read Only Memory).
), and the temporary information can be divided into RAM 111 according to the purpose of use. It goes without saying that in this explanation, the word memory is used to refer to these.

As described above, according to the present invention, the mode state of the search device can be known by determining the state of the display means for displaying the search number, and a special display for displaying the mode is not required.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a reader printer to which the present invention is applied, FIG. 2 is a configuration diagram of the printing section 1, and FIG. 3 is a diagram of the image observation section 2.
4 is a perspective view of the photosensitive drum drive section, FIG. 5 is a perspective view of the film feeding section, FIG. 6 is a front view of the film, FIG. 7 is a block diagram of the control section, and FIG. 8 FIGS. 11 to 11 are flowcharts for explaining the operation. Sl...Control mode selection switch S,...Search mode selection switch D...Display device 110...Control device 120...Computer. Applicant Canon Co., Ltd. Kuno!・Ministry procedural amendment (voluntary) 1. Display of the case 1982 Patent B No. 163634 2, Name of the invention Microfilm retrieval device 3, Person making the amendment Relationship to the case Patent applicant address 3-30-2 Shimomaruko, Ota-ku, Tokyo Name (100)
) Canon Co., Ltd. Representative Noh Kaku 3 Department 4, Agent 5, Drawing subject to amendment 6, Contents of amendment Figure 9 of the drawing shall be amended as shown in the attached sheet.

Claims (1)

[Claims] In a retrieval device that has a display means for displaying information corresponding to information inputted into an input means and automatically searches for desired information, the retrieval device is capable of being connected to an external control means; Microfilm retrieval characterized in that when connected to a control means, the opening side means controls the microfilm retrieval means, and when a mode in which the retrieval device is controlled by an external control device is selected, the display means is not operated. Device.