JPS5832693B2 - copying device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a copying apparatus that can automatically and continuously copy a plurality of original documents.

For example, if microfilm is used as a manuscript for copying, the microfilm with the original image recorded on it will be
As shown in B and C, the rolled film F1. There are fish film F2t, aperture card F3, etc.

Roll film F1 is a long film with many frames a□~
a4. b□... are arranged in parallel, and a search or positioning mark M is provided on the side of each piece.

Fish film F2 is a rectangular film with many frames a.
1-a4. b1 .

A reader printer is used to copy such an original image on a microfilm onto a copying material.

A reader printer projects the image of a desired frame on the microfilm onto a screen and observes the image.
After positioning the part of the frame to be copied at a predetermined position on the screen, the player presses the copy button to operate the printer and obtain a copy.

Usually, a plurality of frames with related information contents are arranged consecutively on a microfilm. For example, the roll film F0 in FIG. In fish film F2, consecutive 4
Two pieces a1. a2. Images a3 and a4 constitute one piece of related information.

In addition, in the aperture card F3, multiple aperture cards constitute one piece of related information, and when a plurality of such related image frames are continuously copied, the printer device performs one day's copying operation. After copying, the operator must advance the film, replace the aperture card, project the next image on the screen, observe it, position it in a predetermined position, and then move on to the next copying operation. It is necessary to operate the copy button.

For this reason, when one piece of information is composed of many image frames or many aperture cards, the operator has to perform image exchange/positioning operations and pressing the copy button many times. The operations were complicated, the copying work took time, the work efficiency was poor, and it was very inconvenient.

Conventionally, copying machines such as reader printers are equipped with a repeat mechanism, which allows you to select the number of consecutive copies.
If you set the desired number of copies, you can continuously obtain the set number of copies by pressing the copy button once, but this repeat mechanism is for continuously copying the same original. Therefore, the time from the end of one copying operation to the next copying operation is short, and during such continuous copying, it is difficult to change the original, position it, or decide whether to copy the original or not. It is difficult to consider.

Particularly when copying a sheet original, it is difficult to quickly correct folds, misalignments, etc. of the original.

The present invention has been made in view of the above points, and it automatically starts the copying operation again for each copy, and saves the time from the end of the previous copy to the time when the next automatic copy starts. The operator can set it according to the progress status etc.
To provide a copying apparatus which enables copying work by replacing originals and eliminates the inconvenience of operating a copy switch many times.

The present invention will be explained below with reference to the drawings.

FIG. 2 shows a reader printer to which the present invention is applied, which includes a printer device 1, an operating device 2, and an observation device 3.
It is composed of.

The printer device 1 is composed of an electrophotographic photoreceptor, an exposure means, a charging means, a developing means, a transfer means, a copying material feeding means, a drying fixing means, etc., and the details thereof are disclosed in Japanese Patent Application Laid-Open No. 1983-1992.
8247, etc., and is well known, so the explanation will be omitted.

The microfilm F is stretched between two reels 4 and 5, and can be moved from the left reel to the right reel or from the right reel by rotating the handles 6 and 7 provided on each reel 4 and 5. Film can be fed to the left reel.

The microfilm F is illuminated by a lamp in an exposure section formed at the top of the printer device 1.

The illuminated film image is selectively enlarged and projected by a projection lens 8 onto either the photoreceptor of the printer device 1 or the screen 9 of the viewing device 3.

This selection is made by rotating a mirror (not shown).

The screen 9 is a transmissive type screen, and is provided with a copy frame 10 for positioning an image to be copied on the film.

It is configured so that only the image projected within this copy frame 10 is copied.

The observation device 3 is composed of optical means such as mirrors,
For details, see Japanese Patent Publication No. 51-23174, Japanese Patent Application Publication No. 50
Since it is publicly known as No.-80124 etc., the explanation will be omitted.

The front panel 11 of the operating device 2 includes a power switch 12 for supplying power to a printer device, etc. Copy density adjustment dial 13. Copy time interval adjustment dial 14. Repeat/manual mode selector switch 15. Copy skip button 16. Repeat stop button 17. and a copy button 18 are provided, respectively.

FIG. 3 shows a printer control circuit for controlling the operation of the printer device 1. As shown in FIG.

In Figure 3, 20 and 21 are OR gates, 22° 23
．． 24 and 25 are AND gates, and 26 is an inverter.

Reference numeral 27 denotes a printer operation circuit that operates various processing means of the printer device 1 in a predetermined time order, and outputs a completion signal from an output terminal a when a predetermined copying operation is performed.

This end signal is output when a predetermined step of the copying operation is completed.

For example, in the case of a scanning method in which the document table holding the microfilm is moved to scan the document, when the document table has finished moving and returned to its home position, the document is scanned by moving the mirror with the case or microfilm fixed. In the case of the scanning method, when the □ roller finishes moving and returns to the home position, the position of the document table or mirror is detected by a microswitch or the like, and an end signal is obtained from this microswitch.

Among these, this end signal may be obtained by the end of a developing process, a transfer process, a copying material feeding process, or a mirror moving process for selectively projecting the microfilm image onto either the printer device or the observation device. Preferably, this occurs when the exposure and scanning process is completed and the image is projected onto the screen again, making it possible to exchange the image.

Reference numeral 40 denotes a transfer control circuit for controlling the film transfer device that feeds the film F, and is activated when receiving an end signal from the printer operation circuit 27 via the OR gate 21.

FIG. 4 shows a film transport device, in which 41 is a light source that illuminates the mark M on the microfilm F placed in the exposure section, 42 is a light receiving element that detects the optical signal of the mark M, and 43 is a mark detection circuit. , 44 indicate motors that drive the feed rollers 6 and 7, and are controlled by the transfer control circuit 40.

When the transfer control circuit 40 receives an end signal from the printer operating circuit 27, it drives the motor 44 to rotate the feed roller 6°7 to feed the microfilm F, and the mark of the next frame is detected by the light receiving element 42. The motor 44 is stopped and a film stop signal is output from the output terminal, thereby completing the exchange of image frames on the exposure section.

Note that a known document feeding device can be used as a means for automatically exchanging the document in the exposure section.

In FIG. 3, reference numeral 28 indicates a timer circuit, which operates when it receives a film stop signal from the transfer control circuit 40 and starts measuring time, and when a set time has elapsed, output terminal C outputs a high level print signal. It generates a signal, finishes measuring time, and becomes inactive.

Reference numeral 29 indicates a delay circuit, and 30 indicates a skip circuit. The skip circuit 30 is composed of a flip-flop circuit, and a print skip button 16 consisting of a self-recovery switch is connected to its set input terminal d, and a reset input is connected to the print skip button 16. The output terminal of the AND gate 24 is connected to the terminal e via the delay circuit 29.

An inverter 26 is connected to the output terminal f of the skip circuit 30.
The input terminal of the AND gate 24 is connected to the input terminal of the AND gate 24, respectively.

FIG. 5 shows a specific example of a timer circuit, in which 50 is a flip-flop circuit, 51 is a variable resistor, which is connected to the copy time interval adjustment dial 14;
By 40 rotations, the resistance value of the variable resistor 51 changes and the set time of the timer circuit is adjusted.

52.53 is a diode, 54 is a resistor, 55 is a capacitor, and 56.57 is an inverter.

The operating time may be set as a timer circuit by a combination of cams and microswitches having different set times.

Also, various known timers can be used.

FIG. 6 shows the signal waveforms at each point A1 to A4 of the timer circuit, and the waveform line A1 * A2 gA3 s in FIG.
, A4 represents the signal waveform at each point having the same sign, tl represents the setting time of the timer circuit, and t2 represents the pulse width time of the copy start signal.

The set time t of the timer circuit 28 is set to an appropriate time by operating the copy time interval adjustment dial 14, taking into account the time required for the operator to observe, position, etc. the original.

Next, the operation of the reader printer will be explained with reference to the time chart shown in FIG.

First, turn on the power switch 12, and repeat/manual mode selector switch 1 to obtain multiple copies of images.
5 to repeat mode.

By switching to the repeat mode, a high level signal is input to one input terminal g of the AND gate 22.

On the other hand, the copy skip button 16 and repeat stop button 17 are turned off.

At this time, a low level signal is output from the output terminal f of the skip circuit 30 (FIG. 7F), and a high level signal is output from the output terminal of the repeat stop button 17 (FIG. 7B).

Next, the first frame of the desired pattern is placed in the exposure section using an automatic search device or the like.

The operator correctly positions the frame in the copy frame 10 while observing the image of this frame on the screen, and after completing the positioning, presses the copy button 18 to turn it on and instructs to start copying.

When the copy button 18 is turned on, the image on the screen disappears, and the device shifts from the observation state to the printer state.

When the copy button 18 is turned on, a high-level copy command signal (FIG. 7A) is output, and this signal causes the OR gate 2 to be activated.
The printer operating circuit 27 is activated via the photosensitive drum 0, thereby exposing the image of the frame placed in the exposure section onto the photoreceptor and performing the first copying operation.

After the exposure is completed, the image is projected onto the screen again, and the viewing state is returned to. At the same time, the printer operating circuit 27 outputs a high-level end signal (D in FIG. 7), and this signal causes the transfer control circuit 40 to pass through the OR gate 21. is activated.

As a result, the film F is fed, and when the mark detector detects the mark of the second frame, the film feeding stops.
And from this circuit 40, a high level film stop signal (
Figure 7 E) appears.

The timer circuit 28 is activated by this film stop signal.

The timer circuit 28 generates a copy start signal (FIG. 7G) after a set time t1 after starting its operation.

After exchanging the image frame in the exposure section, the operator must ensure that the image of the second frame placed in the exposure section is correctly placed in the copy frame 10 while the copy start signal is issued, that is, within the set time t. Check whether the frame is displayed and the contents of this frame, and if the position of the image relative to the copy frame is shifted, adjust the position of the film.

Repeat stop switch 17 and skip button 16
is off and the mode selector switch 15 is switched to repeat mode, the copy start signal from the timer circuit 28 opens the AND gates 25, 23, and 22, and the printer operating circuit 27 is activated again via the OR gate 20. Then, a second copying operation is performed.

After the second exposure, the film is fed again and the third frame is automatically placed in the exposure area in place of the second frame.

Observe the image of the third frame on the screen, and if it is not necessary to copy this third frame, press the copy skip button 16 to turn it on before the timer circuit operates for the set time t1.

When the skip button 16 is turned on, the output terminal f of the skip circuit 30 becomes high level.

(Figure 7F). After the third frame is placed in the exposure area, when the skip button 16 is turned on, a copy start signal is generated from the timer circuit 28, but since the AND gate 23 is closed due to the copy skip button 16 being turned on, the printer The operation circuit 27 is not activated and continuous copying is temporarily interrupted.

On the other hand, since the skip button is turned on, the output terminal f of the skip circuit is at a high level, so the AND gate 24 is opened by the copy start signal, the transfer control circuit 40 is activated via the OR gate 21, and the motor 44 is driven. The film is transferred, the frame in the exposure section is replaced, and the fourth frame is placed in the exposure section.

After the frame exchange is completed, the timer circuit 28 is activated by the film stop signal.
is activated.

Therefore, by turning on the skip button 16, the next copying operation is not performed, and the transfer control circuit is activated to switch to a mode for exchanging originals.

When the AND gate 24 is opened, the skip circuit 30 is reset after a predetermined time via the delay circuit 29, and the output terminal f becomes low level (FIG. 7F), thereby causing the copying operation to be performed by the signal output from the timer circuit. Automatically switches back to the original mode.

Therefore, the operator should replace the third piece with the fourth piece without copying it, and then press the button on the screen to check the contents and position of the next piece, that is, the fourth piece, within the set time t1. good.

Furthermore, if you do not want to copy several frames after the fourth frame, you can press the skip button 16 repeatedly at appropriate intervals for the number of frames that do not need to be copied.

After the skip circuit 30 is reset, when the copy start signal is generated again from the timer circuit 28, the anti-game) 25,
23 and 22 are opened, the printer operating circuit 27 is activated via the OR gate 20, and the third copying operation is performed.

Thereafter, the operator can automatically copy each image at preset time intervals while checking the image position and image content without pressing the copy button.

(Hereinafter, this copy style will be referred to as "repeat copy").

To stop repeat copying, press the repeat stop switch 17 to close the AND gate 25. Therefore, the copy start signal from the timer circuit 28 is not sent to the printer operation circuit, and the next copying operation and image exchange are performed. The repeat copy ends.

Note that repeat printing can be similarly stopped by switching the repeat/manual mode changeover switch 15 to manual mode.

When the mode selector switch 15 is switched to the manual mode, a copying operation is performed each time the operator presses the print button 18, and the printer can be used in the same way as a normal printer.

According to experiments, the time required for examining the image content, positioning the image, etc. varies depending on the ability and experience of the operator, the content of the image, etc., but is generally about 2 seconds.

Therefore, the set time t0 may be changed to an appropriate time by operating the print time interval adjustment dial 14 depending on the skill level of the operator.

If the operator is an experienced operator, the copying process can be completed in a short time by shortening the setup time and the copy cycle; if the operator is inexperienced, the setup time can be lengthened. .

As described above, according to the present invention, the automatic copy cycle can be arbitrarily set in consideration of the time required for examining the content of the original, correcting the bending of the original, adjusting the position of the original, etc. It is possible to reduce the burden on the operator when making copies, etc., and eliminate operational hassles.

The present invention is not limited to microfilm reader printers, but can also be applied to copying machines that use manuscripts such as documents and drawings, and the copying method is not limited to electrophotography, but also silver halide photography,
Methods such as heat development photography can be applied.

[Brief explanation of drawings]

Fig. 1 is a diagram explaining microfilm, Fig. 2 is a schematic diagram of a reader printer showing one embodiment of the device of the present invention, Fig. 3 is a diagram showing a printer control circuit, and Fig. 4 is a film feeding device. 5 shows a timer circuit, FIG. 6 shows a waveform diagram at each point of the timer circuit, and FIG. 7 shows a time chart. 1... Printer device, 9... Screen, 10.
...Print frame, 14...Print interval adjustment dial, 18...Print button, 28...Timer circuit.

Claims (1)

[Claims] 1. A document exchange means that is activated after a predetermined step of a copying operation is completed, a time limit means that is activated in response to the document exchange operation of the document exchange means and that issues a signal after a set time, and a set time of the time limit means that is adjusted. A copying apparatus comprising: a time limit adjusting means for controlling the time limit; and a copy control means for causing the next copying operation to be performed in response to a signal emitted from the time limit means.