JPS5832692B2 - Image reproduction device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an image reproduction device that automatically and continuously prints images.

For example, when using microfilm as a manuscript for copying, the microfilm on which the original image was recorded must be
, C, the roll film F1゜fish film F2. There are aperture cards such as F3.

Roll film F1 has many frames a1 on a long film.
~a45E11...... is a standard item,
Fish film F2 is a rectangular film with many frames a.
1 to a45b1 .

A reader printer is used to copy such original images on microfilm onto copying material.

With reader printers, the image of the desired frame on the microfilm is projected onto the screen, the elephant is observed in the image, and after positioning the part of the frame to be copied at a predetermined position on the screen, the printer presses the print button. is activated to 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 the fish film F2, images of four consecutive frames a1, a2 ta3 + g+ constitute one piece of related information.

In the case of 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 a single printing operation. After completing the printing process and moving on to the next printing operation, the user can advance the film, change the aperture card, project the next image on the screen, observe it, and position it in a predetermined position. You need to press the print button.

For this reason, when one piece of information consists of a large number of image frames or a large number of aperture cards, the user must perform image exchange/positioning operations and pressing the tooling button with great precision. The operation was complicated, the printing work took time, the work efficiency was poor, and it was very inconvenient.

In addition, conventionally, for reader printers, copiers, etc.
A repeat mechanism is provided, and if you set the continuous copy number selection knob to the desired number of copies, you can continuously obtain the set number of copies by pressing the print button once, but this repeat mechanism Because the same document is printed continuously, the time from completing one print operation to starting the next print operation is short.
During such continuous printing, it is difficult to replace and position the original, and to consider whether or not to print the original.

Particularly when copying a large number of pages from a bound original such as a book, it is difficult to quickly replace the original.

Furthermore, when making a copy of a sheet original, it takes time to correct folds in the original, and it is difficult to get the original into the correct state before the next printing operation starts automatically.

The present invention has been made in view of the above points, and it automatically starts the printing operation again for each print, and also reduces the time from the end of the previous print to the next automatic print start 1. To provide an image reproduction device which can be set by a user according to the progress, enables print work by replacing originals, and eliminates the inconvenience of operating a print 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. 1989-1991.
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 nozzles 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 onto an exposure area 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 □ roller (not shown).

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

The observation device 3 is composed of optical means such as a mirror, and has a button.
For details, see Japanese Patent Publication No. 51-23174, Japanese Patent Application Publication No. 50
80124, etc., so the explanation will be omitted.

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

FIG. 3 shows a printer control circuit for controlling the operation of the printer device 1. In FIG.
21 is or gate, 22, 23.

24 and 25 are AND gates, and 26 is an inverter.

Reference numeral 27 indicates 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 print operation is performed.

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

For example, in the case of a scanning method in which the document table holding the microfilm is moved and the image is scanned, the image is scanned when the document table finishes moving and returns to its home position, or when the document table is fixed to the microfilm and the mirror is moved. In the case of the scanning method, when the movement of the mirror ends and it returns to the home position, the position of the movable document table or the mirror is detected by a microswitch or the like, and an end signal is obtained from the microswitch.

button, this end signal is sent when the development process, transfer process, copying material feeding process, or movement process of the □ roller that selectively projects the microfilm image onto either the printer device or the observation device, etc. 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 28 denotes a timer circuit, which operates when it receives an end signal from the printer operation circuit 27 via the OR gate 21 and starts measuring time, and when a set time has elapsed after activation, it outputs a print start signal from the output terminal. occurs, completes the time measurement operation, 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 has a button, and a print skip button 16 consisting of a self-recovery switch is connected to its set input terminal C. The AND gate 2 is connected to the reset input terminal d via the delay circuit 29.
4 output terminals are connected.

In addition, the inverter 26 is connected to the output terminal e 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. 4 shows a specific example of a timer circuit, 50 is a flip-flop circuit, 51 is a variable resistor, which is connected to the print time interval adjustment dial 14, and when the dial 140 is rotated, the resistance of the variable resistor 51 is increased. The value changes to adjust 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 timer circuit is not limited to the example, and various known ones can be applied.

FIG. 5 shows signal waveforms at each point A1 to A4 of the timer circuit, and the waveform line A12 A2 in FIG.

A3. 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 print start signal.

The set time t1 of the timer circuit 28 is set to an appropriate time by operating the print time interval adjustment dial 14, taking into consideration the time required for the user to change originals, etc.

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

First, the power switch 12 is turned on, and the repeat/manual mode selector switch 15 is switched to repeat mode in order to continuously obtain copies of a large number of images.

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

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

At this time, a low level signal is output from the output terminal e of the skip circuit 30 (FIG. 6E), and a high level signal is output from the output terminal of the repeat stop button 17 (FIG. 6B).

Next, the user operates the handle 6.7 to place the first frame of the desired information on the exposure section, and while observing the image of this frame on the screen, selects the area on the screen where the image is to be copied. After positioning the print frame 10 and completing the positioning, press the print button 18 to turn it on and instruct to start printing.

When the print 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 print button 18 is turned on, a high level print signal (Fig. 6A) is output, and this signal causes the rear gate 2 to
The printer operation circuit 27 is activated via the printer 0, whereby the image of the frame placed in the exposure section is exposed to the photoreceptor, and the first printing 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. 6), and this signal causes the timer circuit 28 to be activated via the OR gate 21. activated.

The timer circuit 28 generates a print start signal (FIG. 6F) after a set time t1 after the timer circuit 28 starts operating.

After the exposure of the first frame is completed, the user operates the handles 4 and 5 again to feed the film during the time when this print start signal is issued, that is, within the set time tl, and makes the -th copy. In place of the frame, a second frame is placed in the exposure section, and the image of this frame is positioned in the print frame 10.

Since the repeat stop button 17 and the skip button 16 are off and the mode changeover switch 15 is switched to repeat mode, the AND gate 25°23.22 opens with the print start signal output from the timer circuit 28, and Then, the printer operation circuit 27 is activated again, and a second printing operation is performed.

After the second exposure is completed, the second frame is ejected from the exposure section within a set time t1, the third frame is sent into the exposure section, and this frame is positioned.

When the image of the third frame is observed on the screen and there is no need to copy this third frame, or when the third frame cannot be placed and positioned in the exposure area within the set time t1, etc. If this is expected, press the print skip button 16 before the timer circuit operates for the set time t1.
Press to turn it on.

When the skip button 160 is turned on, the output terminal e of the skip circuit 30 becomes high level (FIG. 6E).

When the skip button 16 is turned on after the second exposure, a print start signal is generated from the timer circuit 28, but since the AND gate 23 is closed due to the skip button 16 being turned on, the printer operation circuit 27 does not operate. , continuous printing is temporarily interrupted.

On the other hand, when the output terminal e of the skip circuit 30 becomes high level, the AND gate 24 is opened by the print start signal.
A timer circuit 28 is activated via the OR gate 21.

Therefore, when the skip button 16 is turned on, the mode is switched to a mode in which the timer circuit is operated without performing the next printing 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 e becomes low level (Fig. 6E), thereby causing the copying operation to be performed by the signal output from the timer circuit. Automatically switches back to the original mode.

Therefore, after the second exposure, the user only has to position the next piece, that is, the fourth piece or the third piece, in the 5 exposure area within 2×t1 time.

If it takes more time to position the image or observe the image due to consideration of image content, etc., adjust the interruption time of continuous printing to an appropriate time or less by repeatedly pressing the skip button 16 at appropriate intervals. can do.

After resetting the skip circuit 30, when the print start signal is generated again from the timer circuit 28, the ant game) 25
, 23, and 22 are opened, the printer operating circuit 27 is activated via the OR gate 20, and the 533rd printing operation is performed.

Thereafter, the user only needs to perform image exchange and positioning operations, and by pressing the print button, each image can be automatically printed at the time cycle preset by the user.

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

To stop repeat printing, press the repeat stop button 17, and the AND gate 25 closes. Therefore, the print start signal from the timer circuit 28 is not sent to the printer operation circuit, and the next 4 print operations are not performed.
Repeat printing ends.

Nachi, repeat/ranual mode selector switch 15
Repeat printing can be stopped in the same way by switching to manual mode.

When the remote selector switch 15 is switched to manual mode, a printing operation is performed each time the user presses the print button 18, and the same functions as a normal printer device can be provided.

According to experiments, the time it takes to replace and position image frames varies from person to person depending on the ability and experience of the user, but it is generally about 2 to 4 seconds.

Therefore, the set time t1 is changed to an appropriate time by operating the print time interval adjustment dial 14 according to the user's skill level.

If the user is an experienced user, the copying process can be done in a short time by shortening the setup time to shorten the copy cycle; if the user is inexperienced, the setup time can be lengthened. good.

In particular, when copying a large number of images, by shortening the print start signal, a large number of copies can be made in an extremely short time compared to conventional printer devices.

As described above, according to the present invention, repeat printing can be interrupted for an arbitrary period of time by selecting the repeat interruption mode using the selection means during repeat printing, and by selecting the number of times the selection means is operated, the Exchange of
When positioning or considering image content, you can appropriately adjust the time between the previous print operation and the next print operation, which simplifies the copy operation and shortens the work. It can be carried out.

Furthermore, the user does not have to press the print button every time he or she replaces a document or restarts copying after interrupting repeat printing, which eliminates operational hassle and reduces the burden on the user.

Further, the printing speed may be high, and if the printing speed is increased, the work can be done in a shorter time.

Note that 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 printing method is not limited to electrophotography.
Methods such as silver salt photography and heat development photography can also be applied.

[Brief explanation of drawings]

Figure 1 is a diagram explaining microfilm, Figure 2 is a schematic diagram of a reader printer showing one embodiment of the present invention, and Figure 3 is a diagram explaining a microfilm.
4 is a diagram showing a printer control circuit, FIG. 4 is a diagram showing a timer circuit, FIG. 5 is a waveform diagram at each point of the timer circuit, and FIG. 6 is a diagram showing a time chart. 1... Printer device, 9... Screen, 10.
...Print frame, 16...Skip button 18...
・Print button 28...Timer circuit.

Claims (1)

[Scope of Claims] 1. A timer that is activated after a predetermined step of a printing operation is completed and that issues a signal after a set time; and a signal that is issued from the timer to cause the next printing operation to be performed or to start the next printing operation. and a selection means for selecting whether or not to activate the timer means again without activating the timer means. 2. When the selection means selects to operate the timer, means is provided for automatically switching to perform the next printing operation by a signal issued from the timer after the timer is reactivated. An image reproduction device according to claim 1, characterized in that: 3. The image reproduction apparatus according to claim 1 or 2, further comprising means for adjusting the set time of the time limit means.