JPS5832694B2 - 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.

When a microfilm is used as a manuscript for copying, for example, the microfilm on which the original image is recorded is a roll-shaped film F1. There are Fish Film F2, 7 Bachiya Card F3, etc.

Roll film F1 is a long film with many frames a1~
a4.

bl... 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. The aperture card F3 has a film having one or more frames attached to the aperture part of the card.

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

With a reader printer, the image of the desired frame on the microfilm is projected onto a screen and the image is observed.
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 in series on a microfilm, for example, the roll film F1 in FIG. In fish film F2, consecutive 4
Two pieces a1. a2. a3. The a4 image constitutes one piece of related information.

In addition, in the aperture card F3, multiple aperture cards constitute one related image frame. When such a plurality of related image frames are successively copied, the printer device After completing a copying operation and moving on to the next copying operation, the operator must advance the film, change the aperture card, project the next image onto the screen, observe it, and position it in a predetermined position. and then need 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 were equipped with a repeat mechanism, allowing users to set the desired number of continuous copies by pressing the copy button once. This repeat mechanism is used to continuously copy the same original, so it is not possible to make copies of the same number of pages continuously. During such continuous copying, it is difficult to change and position the original, or to consider whether or not the original should be copied.

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

When copying a large number of originals automatically, if you do not need to make copies of some of the selected originals, stop the repeat mechanism, remove the originals that do not require copying, and then turn the repeat mechanism back on. There is a problem in that the operation is complicated because it has to be operated to activate it.

The present invention has been made in view of the above-mentioned points, and the copying operation is automatically started for each copy, and during automatic continuous copying, documents that do not need to be copied are not copied and the next copy is started. It can be easily replaced with the original, and the operator can set the time from the end of the previous copy to the start of the next automatic copy depending on the progress of the work. To provide a copying apparatus which can eliminate 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 exposing means, a charging means, a developing means, a transferring 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.
It is described in No. 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 to the left by rotating the handles 6.7 provided on each reel 4 and 5. Film can be fed to the reel.

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

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

This selection is made by rotating a □ roller (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, the details of which can be found in Japanese Patent Publication No. 51-23174.

Since it is well known in Japanese Patent Laid-Open No. 50-80124, 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 cycle 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, the document is scanned when the document table finishes moving and returns to its home position, or by moving the mirror with the microfilm fixed. In the case of the scanning method, when the □ roller finishes moving and returns to its 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 is transmitted in response to an operation such as a developing process, a transfer process, a copying material feeding process, or a mirror moving process that selectively projects a microfilm image onto either a printer device or an observation device. Preferably, this occurs when the exposure and scanning process is completed and the document can be replaced.

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 movement control circuit 40.

When the transfer control circuit 40 receives the end signal from the printer operation circuit 27, it drives the motor 44 to move the feed roller 6.7.
is rotated to feed the microfilm F, and when 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. The exchange ends.

Note that a known document feeding device may 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, a high level copy starts from the output terminal C. 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 copy skip button 16 consisting of a self-recovery switch is connected to its set input terminal d, and a reset input The output terminal of the AND gate 24 is connected to the terminal e via the delay circuit 29.

In addition, an inverter 26 is connected to the output terminal f of the skip circuit 30.
The 0 input terminal and the input terminal of the AND gate 24 are connected to each other.

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 cycle adjustment dial 14, and dial 1.
4 changes the resistance value of the variable resistor 51 and adjusts the set time of the timer circuit.

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.

Furthermore, various known timers can be used.

FIG. 6 shows signal waveforms at each point A1 to A4 of the timer circuit, and waveform lines AI and A2 in FIG.

A3. A 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 cycle adjustment dial 14, taking into consideration the time required for the operator to perform the observation positioning work of 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. 1F), and a NO level signal is output from the output terminal of the repeat stop button 17.

(Figure 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 copy command signal of level 1 (FIG. 7A) is output, and this signal activates the printer operating circuit 27 via the OR gate 20, thereby causing the image of the frame placed in the exposure section to be activated. is exposed onto the photoreceptor and the first copying operation is performed.

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.

This film stop signal activates the timer circuit 28.

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

After replacing the image frame in the exposure section, the operator must check whether the image of the second frame placed in the exposure section is correctly placed in the copy frame 10 before the copy start signal is output, that is, within the set time t. Check whether there is a piece and the contents of this piece,
Also, if the position of the image is misaligned in accordance with the copy frame, the position of the film is adjusted.

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 operation circuit 27 is activated again via the OR gate 20. 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 transfer control circuit is activated and the mode is switched to a mode in which the original is exchanged without performing the next copying operation.

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 to the original mode.

Therefore, after replacing the third piece with the fourth piece without copying it, the operator only needs to check the content and position of the next piece, that is, the fourth piece, on the screen within the set time t1.

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 AND gate 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 copy, press repeat switch 1.
When 7 is pressed, the AND gate 25 closes, so that the copy start signal from the timer circuit 28 is not sent to the printer operation circuit, the next copying operation and image exchange are not performed, and the repeat copy ends.

Note that repeat copying 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 copy 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 t1 may be changed to an appropriate time by operating the copy cycle 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, when a plurality of originals are automatically and continuously copied, if there is an original that does not need to be copied, the repeat copying is interrupted by the selection means, and this original is automatically copied without being copied. It is possible to replace the original with the next original and perform automatic continuous copying again from the next original, simplifying the copying operation and making it possible to perform the copying work in a short time.

The remaining operator does not need to press a copy button every time a document is replaced or every time a copying operation is restarted after interrupting repeat copying, and the troublesome operation is eliminated.

In addition, the automatic copying cycle can be set arbitrarily, taking into consideration the time required to examine the content of the original, correct the bending of the original, or adjust the position of the original. can reduce the burden of

The present invention is applicable not only to microfilm reader printers, but also to copying machines that use manuscripts such as documents and drawings, and the copying method is not limited to electrophotography, but can also be applied to methods such as silver halide photography and 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 in the timer circuit, and FIG. 7 shows a time chart. 1... Printer device, 9... Screen, 10.
...Copy frame, 14...Copy interval adjustment dial, 1
8...Copy button, 28...Timer circuit.

Claims (1)

[Scope of Claims] 1. Original exchanging means that is activated after a predetermined step of a copying operation is completed; timer means that is activated in response to the original exchanging operation of the original exchanging means and that issues a signal after a set time; and the timer. whether the signal emitted from the means causes the next copying operation to be performed;
A copying apparatus comprising a selection means for selecting whether to perform a next document exchange operation. 2. When the selection means selects to perform the next original exchange operation, means is provided for switching so that the next copying operation is performed by a signal issued from the timer after the next original exchange operation is performed. A copying apparatus according to claim 1, characterized in that: 3. The copying apparatus according to claim 1 or 2, further comprising means for adjusting the set time of the time limit means.