JPS61116339A - Microfilm printer - Google Patents

Abstract

PURPOSE:To execute efficiently copying work by forming a switching means for feeding a film by at least +2 frames and -2 frames. CONSTITUTION:A 'HIGH SPEED +' key 24, a 'HIGH SPEED -' key 25, a '+' key 26, a '-' key 27, a 'COPY' key 28, '28' and '-2' frame feeding keys 22, 23, a 'CONTINUE' key 34, and a 'STOP' key 35 are arranged on a control box of a reader printer. When the output of the keys 22, 23 are inputted to a control circuit 30, a film feed control circuit 31 feeds the film continuously by 2 frames in the '+' or '-' side. When the key 34 is depressed, 2 frames are continuously fed and copied and its operation is stopped by the key 35.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention [Field of Industrial Application] This invention relates to a microfilm printer using microfilm such as roll film or fish film, and particularly to a film feeding means.

[Conventional technology]

Conventional microfilm league printers only had the following functions to feed film: ÷1 frame, -1 frame, high speed + feed, and high speed - feed. [Problems to be solved by the invention] For example, even though it is possible to project two frames of film onto a 43-size or 84-size projection screen in A4 size and view both frames at the same time, the film only moves one frame at a time. I can't.

Therefore, it was necessary to operate the film movement key twice in order to move the A4 size projected image by two frames. Furthermore, when printing two A4-sized pages on A3-sized printing paper in order to reduce printing costs, the same thing happens, and the operation of the film movement key is cumbersome.

The object of the present invention is to solve the above-mentioned problems and efficiently perform copying operations.

Summary: Structure of the Invention [Means for Solving Problems] The present invention provides a microfilm printer capable of printing at least two frames of images, a film feeding means capable of stopping at a frame on the microfilm, and a film feeding device. In a printer having a control means, at least +
This microfilm printer is characterized in that it is equipped with a switch means that can feed film for 2 frames and -2 frames.

Further, the above configuration is characterized in that continuous operation means for feeding +2 frames, -2 frames and copying is provided.

[For production]

In the above-mentioned known printer, feeding and copying of +2 and -2 frames on the microfilm are performed with a single key operation.

Moreover, the operation can be automatically continued.

〔Example〕

FIG. 1 is a perspective view showing a schematic configuration of a main part of an example of a known microfilm reader printer equipped with a roll film feeding device to which the present invention is applied.

To explain the outline of its structure and operation, when the autoloading key (not shown) is pressed, the motors 3, 4, and 5 are energized to move the roller 6 in the film feeding direction as shown by the arrow, and the film take-up reel 13. is rotated in the film winding direction. The solenoid 7 is also energized to move the roller support arm 8 downward, moving the roller 6 to the film path of the film exit portion 2a of the cartridge 2. The lamp 14 is turned on.

The leading end of the leader tape is fed out by the nip between the film feeding roller 6 and a reel flange (not shown),
Due to the strength of the leader tape, the rotation pressure of the roller 6 continues to move the first film guide roller 9 to the mark detector 1.
The leader tape portion of the starting end of the film is automatically wound on the outer peripheral surface of the core 13a of the film take-up reel 13 by traveling along the path from the lower side of the film guide roller 10 to the second film guide roller 10. The illustrated example is an arcuate swing arm 12c*
The film is automatically pressed by a roller 12b and a pressing spring 12d).

When the film autoloading mechanism 12 automatically winds the film start end leader tape onto the take-up reel core 13a and a certain period of time has elapsed, the motors 3 and 5 and the solenoid 7 are energized based on a timer signal (not shown). is cut off, and the film feed roller 6 is held in an inoperative state.

The motor 4 continues to rotate, and when the A, +,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,<<<<p<b><b<b><b><b>kk 1) have been reached for each frame of the film have been continuously rotated, the power supply to the motor 4 is cut off and the motor 4 is stopped.

The frame image consists of illumination lamp 14, condensing lens 15, film mark detector 11, projection lens 16Φ reflection mirror 1
7 and projected onto a screen 18. Further, the light transmitted through the projection lens 16 is mirror-scanned by the reflecting mirrors 19 and 20 to expose the photosensitive drum 21 to obtain a hard copy through an electrophotographic process.

Reader printer control box 6 as above
0, as shown in Fig. 2, there is a "high speed +" key 24 for rapidly feeding the microfilm in the child direction, a "high speed -" key 25 for rapidly feeding the microfilm in the opposite direction, and a key 25 for moving the microfilm image in the child direction. °°+” key 2 to move the frame in the direction
6. A "-" key 27 for moving one frame in one direction and a "FP" key 28 for instructing copying of a stopped microfilm image are provided.

The control circuit (microcomputer) 30 shown in FIG.
, input key signals of ``high speed +'' 24 or ``high speed -'° 25 as necessary, and the control circuit 30 operates based on these input signals and sends a signal to the film feeding control circuit 31. Feed the film, then move to A in Figure 4.
Microfilm image A4 1 on 3-format screen 18
project one.

Therefore, to display two frames of microfilm as shown in FIG. The first aspect of the present invention is to operate the print control circuit 32 using the control box 60.
A frame advance key 22023 of "÷2'°"-2" is provided in the frame feed key 22023, and the film control circuit 31 is controlled in the control circuit 30 according to signals from these keys to continuously feed two frames to the + side or to the one side. This feature eliminates the need to operate the film advance key for the second frame.

The second invention is based on the above invention, and further automatically performs the operations of 2-frame forwarding -1-1"+2" 22, "-2" 23 and the "copy" key 28 in succession. Continuous key ″3
4 is provided, and these signals are inputted to the control circuit 30 to cause continuous two-frame forwarding and continuous copying of each two frames.

With the above configuration, for example, when sequentially copying continuous pages, Z frames of microfilm can be simultaneously copied onto A3 size paper, and the operation can be performed automatically and continuously in an efficient manner.

A "0 stop" key 35 is provided to stop the continuous operation, and the signal divided by the "0 stop" key 35 is configured to stop the operation by the "continuous" key 34.

The above-mentioned blip mark detector 11 uses an optical detector using an optical fiber or the like, controls the driving time of the film feeding capstan roller with a timer, and uses a pulse motor for the film feeding motors 4 and 5. However, by controlling the number of pulses, frame-by-frame advance control can be performed.

C1 As described in detail of the invention, a microfilm printer capable of printing at least two frames of images is provided with a switch means that can automatically feed two frames of microfilm in succession. Since two frames can be fed and copied at the same time, fewer key operations are required and operability is improved.

Further, since the above-mentioned structure is provided with a switch means for continuously performing two-frame controlled copying, the operability when printing subsequent pages, etc. is significantly improved.

Since the present invention has the above-mentioned configuration, it is not limited to copying two frames onto A3-sized print paper, and it is sufficient that at least two frames of images can be copied onto the same print paper, such as projection of frame images. By changing the magnification, it is also possible to copy three or more frames on the same print paper.

Also, depending on the size of the frames, it is possible to make applications such as enlarging two frames of images to 85 size and copying them simultaneously onto 84 size print paper.

FIG. 5 is an explanatory diagram of the structure of the control circuit 30 and film feeding control circuit 31 shown in FIG. 3 for two-frame feeding.

When the ÷2 key 22 is turned on, the flip-flop Fl is set, the transistor Tri becomes conductive, and the film + direction drive circuit DI is driven, thereby feeding the film in the + direction.

On the other hand, the mark m (FIG. 4) of the frame projected on the screen is read by a detector S, and the number of mark signals 11 is counted by a counter C. When the counter C counts two mark signals during two-frame forwarding, it outputs a high-level (logic "1") signal from the output terminal a and is reset to the initial state (ro).

When the signal rlJ is output from the counter C during the aforementioned film feeding, this signal opens the AND gate A1 and resets the flip-flop Fl. The reset of the flip-flop Fl causes the transistor Tri to become non-conductive and the film to stop. When the -2 key 23 is turned on, the flip-flop F2, AND gate A2, transistor Tr2, and film one-way drive circuit D2 operate in the same manner as described above.

FIG. 6 is a flow chart of FIG.

FIG. 7 is a circuit configuration diagram of ÷2·-2 continuous feeding.

When the continuous key 34 is turned on, the flip-flop F3 is set and one of the flip-flops A3 becomes high.

The output Q of the flip-flop F4 remains high and enters the AND gate A3.

When the +2 key 22 is turned on, the flip-flop F1 is set, the transistor Tri becomes conductive, and the film + direction drive circuit D1 is driven, thereby feeding the film in the sub direction.

When the counter C counts two mark signals output from the mark detector while the film is being fed, a signal is output from the terminal a, which opens the AND gate At and resets the flip-flop Fl. By resetting the flip-flop Fl, the transistor Tri becomes non-conductive and the film stops.

Further, by resetting the flip-flop F1, the output page becomes high, the analog gate A3 is opened, and a set signal is input to the flip-flop F1. Then, the operation of moving and stopping the two-frame film is repeated. Note that by sending the output signal of the AND gate A3 to the S input terminal of the flip-flop F1 via the delay circuit, the film can be stopped for a time set by the delay time of the delay circuit.

When the stop key 35 is turned on, the flip-flop F3 is reset, the animation screen A3 is closed, and the movement of the film is stopped.

If you operate the 12 keys, Flip Flo, B F2a7
A four-lumen unidirectional drive circuit D2 operates in place of F1 and D2, and operates in conjunction with other components in the same manner as described above.

In FIG. 7, when the continuous key 34 is turned on, the flip-flop F3 is set and one of the AND gates A3 becomes high.

When the copy button 28 is turned on, the flip-flop F4
is set and AND gate A6 opens and gate A5
One side gets high. Also, one side of A3 becomes high.

When the +2 key 22 is turned on, the flip-flop F1 is set, the transistor Tri becomes conductive, and the film + direction drive circuit D1 is driven, thereby feeding the film in the sub direction.

When the counter C counts two mark signals output from the mark detector while the film is being fed, a signal is output from the terminal a, and this signal opens the AND gate A1 and flip-flop F1 is turned on. free 2 flop F
By resetting 1, the transistor Tri becomes non-conductive and the film stops. Further, by resetting the flip-flop F1, the output signal becomes high, the AND gate A5 is opened, the print control circuit 32 is driven, and a copying operation is performed.

After the copy is completed, the flip-flop F4 is reset by the copy operation end signal CE. flip flop F4
The reset causes AND gate A3 to open, and a signal enters the set of flip-flop F1. flip flop F1
When is set, film ÷ 2 frame advance is performed again. The reset of flip-flop F4 opens AND gate A8, which resets flip-flop F4 and repeats the operation described above, that is, the film is again advanced by two frames and the next two frames are copied. , this operation can be stopped by turning on the stop key 35, which resets the flip-flop F3 and the flip-flop F4, and opens the AND gates A3 and A6.
A7 closes, frames forward, and copying stops.

It operates in the same manner when the -2 key 23 is turned on.

A single copy is performed in the following order: When the film is stopped, one of the AND gates A7 is high.

When the copy button 28 is turned on, the flip-flop F4 is set, the Q output becomes high, the AND gate A7 is opened, and the print control circuit 32 is operated.

When the copy operation is completed, the copy operation end signal GE resets the flip-flop F4, and the output Q becomes low, and the AND gate A7 is closed and no copy operation is performed.

FIG. 8 is a flowchart of FIG. 7.

[Brief explanation of the drawing]

Fig. 1 is a schematic perspective view of a league printer for roll microfilm, Fig. 2 is a front view of a control box for a league printer equipped with the signal switch means of the present invention, and Fig. 3 is a block diagram showing the input and output of the control circuit. Figure 4: A on the A3 size screen of the printer
Figure 5 is a block diagram of the film feed control circuit, Figure 6 is its flowchart, Figure 7 is a block diagram that combines Figure 5 with a continuous copy circuit, Figure 8 is the flow chart. DESCRIPTION OF SYMBOLS 1... Roll microfilm, 11... Film mark detector, 18... Projection screen, 22...
+2 key, 23...-2 key, 34... continuous key,
35...Stop key. Figure 3 Figure 4 Figure 8

Claims (2)

[Claims] (1) In a microfilm printer capable of printing at least two frames of images, a film feeding means capable of stopping at a frame on the microfilm, and a film feeding control means, at least +2 frames and -2 frames of film can be printed. A microfilm printer characterized by being provided with a switch means for feeding the microfilm. (2) In a microfilm printer capable of printing at least two frames of images, a film feeding means capable of stopping at a frame on the microfilm, and a reader printer having a film feeding control means, at least +2 frames and -2 frames are printed. A microfilm reader printer characterized in that it is provided with a switch means capable of feeding film, and a switch means capable of continuous operation of the above-mentioned +2 frame feeding, -2 frame feeding and copying operation.