JPS6224277A - Copying device - Google Patents

Abstract

PURPOSE:To synthesize and transfer a piece of information at random out of plural originals without troublesome work by displaying the picture information of an original on a CRT display and indicating a synthesizing position, an information position, etc., through a light pen. CONSTITUTION:In order to transfer an image on information by fitting it at the prescribed position of a transfer paper when plural originals are synthesized and transferred, the original is aligned. Instead of a primitive method positioning through operator's calculation in mind when the original is manually set, the alignment of the position is made with semi-automation or full automation. In this case, a CRT display is installed, and the original is displayed on said display. Then the synthesizing position, the information position, etc., are indicated through the light pen, etc.

Description

[Detailed Description of the Invention] Skin Junku! The present invention relates to a copying apparatus that copies a plurality of pieces of image information of a document onto a single sheet of copy paper at arbitrary predetermined positions.

2. Description of the Related Art Copying apparatuses that combine and copy image information of two originals onto a single sheet of copy paper are known.

For example, in order to create a document that contains data that constantly changes as part of a text with a fixed content, such as a certificate, the format of a manuscript with a fixed content and a manuscript containing data are used. A method of synthetic copying is used.

Conventional composite copying uses a first document with holes in which the part for storing format data, i.e., information that changes from time to time, is formed as a hole, and a second document having information in the hole in the first document is used. A method is used in which the first M manuscript and the second manuscript are superimposed so that a predetermined portion of the manuscript is aligned and the two manuscripts are copied as one manuscript using a conventional copying machine.

This method requires special processing such as punching holes in the format paper, and has the drawbacks that paper preparation is complicated and positioning of the first and second documents is troublesome.

OBJECTS OF THE INVENTION It is an object of the present invention to provide a copying apparatus which eliminates the drawbacks of the prior art and allows the user to easily specify an image area of a document to be copied and a position where the image is to be copied and reproduced.

The present invention achieves the above object by providing a CR electrically connected to a copying machine.
This was achieved using a copying apparatus which is equipped with a T-display, displays image information of the original on the CRT display, and uses a light pen to indicate the composition position, information position, etc.

The structure and operation of the present invention will be explained in detail based on the embodiment shown in the drawings.

In FIG. 1, the first JW document set at a predetermined position by the document exchange device 1 is illuminated by a well-known illumination exposure optical device 5 including a light source 2, a mirror 3, and a lens 4, and is exposed to form an image on a photoreceptor 6. Ru. The surface of the photoreceptor 6 is uniformly charged by the charger 7 and exposed by the illumination exposure optical device 5 to form an electrostatic latent image. While the photoreceptor 61, for example, a photoreceptor drum, moves, the electrostatic latent image is developed by the developing device 8 and made visible.

The developed image on the photoreceptor 6 is transferred to a transfer paper 10 as a copy paper fed from a paper feed section 9 at a transfer position.

After the transfer, the photoreceptor 6 is neutralized and cleaned by a cleaning device 12, and the process from charging is repeated again.

The transfer paper 10 on which the image of the first original document has been transferred is sent to the storage device 13. In the above process, the image of the first document is transferred to the transfer paper, and while the transfer paper is stored in the storage device 13, the first document is taken out in the document exchange device 1, and the second document is placed in a predetermined position. Set. Thereafter, the photoreceptor 6 is charged, exposed, and developed in the same steps as for the first original.
The image of the second document formed on the photoreceptor 6 is transferred onto the same side of the transfer paper fed from the storage device 13 by a known transfer device. In this way, the images of a predetermined number of documents starting from the third JJK document are transferred and combined onto the same side of one transfer sheet.

The original replacing device 1 is simply the original placing glass 17 of a copying machine.
Alternatively, a semi-automatic document handling device or a fully automatic document handling device having a feed belt 18 that feeds and sets manually inserted documents to a predetermined position can be used. .

When a single format is repeatedly used as the first document, as shown in FIG. The second recorded
It is convenient to configure the document exchange device 1 with means 2o for exchanging documents 23 and the like.

The illumination and exposure optical device 5 may be of a fixed illumination type depending on the type of the document exchanger 1, or may be of a scanning type in which a light source or the like is moved back and forth.

In the example shown in FIG. 1, the light source 2 and a part of the mirror 3 reciprocate within a predetermined range with respect to the original on the original placing glass 17, and when necessary, such as when changing magnification, the lens 4
A slit exposure illumination device is shown in which the light source and the mirror reciprocate by displacing the other part of the mirror 3 to scan and illuminate the document.

In the example shown in FIG. 2, a slit exposure illumination device that is exactly the same as that shown in FIG. 19, a slit exposure illumination device consisting of a light source 2' whose position is fixed and a necessary mirror 3' is used, and the image of the first original 22 and the second original 23 are projected onto the photoreceptor 6 by a common lens 4. Both images are exposed at the same location. Although the light sources 2 and 2' can be different,
When illuminating the first original fi 19, the light source 2 is moved beyond the illumination scanning range for the second original 23 and is illuminated at a fixed position, thereby serving as both the light source 2 and the light source 2'. You can also do that.

As shown in FIG.
5 or transfer paper conveyance means 27 having a feed belt 26
After the transfer paper is transferred by a known means, the transfer paper is fixed by a fixing bag @ 15, and a storage path 29 is provided which is switchable by a first gate 28 with respect to the path to the paper discharge tray 16.
through the storage tray 30. When feeding the paper into the storage tray 3o, it is always turned upside down so that the leading end is fed as the leading edge, and in the illustrated example, the copy side is fed and stored with the copy side facing down.

After one sheet or a predetermined number of transfer sheets on which the first original is copied is stored in the storage tray 30, a second original is copied.

When copying the second original, the rotation of the registration roller is stopped by the paper feeding roller in the storage tray 30 or by the registration roller sent out from the storage tray 30 in advance in accordance with the exposure timing and provided in the middle of the transfer paper conveying means 27. The driving is performed under timing adjustment according to the positional deviation calculated by the composite position signal and the information position signal, and the composite position of the transfer paper carrying the image of the first original reaches the transfer position of the photoreceptor 6. Adjustments are made so that the information image of the second document formed on the photoreceptor 6 is exactly at the transfer position. The transfer paper is stored in the storage tray 30 in a number corresponding to the number of originals to be combined, and is sent again to the transfer position of the photoreceptor 6, so that the transfer paper is repeatedly fed in a circular manner.

When the composite copying of the final original is completed, the transfer paper is discharged to the paper discharge tray 16 by switching the first gate 28.

In the example shown in FIG. 3, another second gate 31 is provided from the fixing device 15 to the first gate 28, and the case where the transfer paper is sent to the storage tray 3o through the first gate 28 is reversed. In other words, the switching path 32 feeds the paper into the storage tray in such a state that it does not turn over after passing through the fixing device, and the front end becomes the rear end with the copied side facing up in the figure.
It is possible to establish/perform. When the second gate is switched to send the water through the switching path 32 to the storage tray 30.

In the next copying process, the opposite side of the transfer paper contacts the photoreceptor and is transferred. In other words, double-sided copying becomes possible.

Composite copying and double-sided copying are achieved by providing two gates 28 and 31 to enable switching of two ways of feeding the transfer paper to the storage tray.

Furthermore, double-sided composite copying can also be made possible.

That is, double-sided composite copying is possible by performing the above-mentioned composite copying operation on one side, then sending it to the storage tray 30 from the second gate 31 through the switching path 32, and then performing the above-mentioned composite copying operation on the back side again. The M document is aligned in order to copy the images of each piece of information in a predetermined position on the copy paper when making a composite copy. To perform semi-automatic or fully automatic alignment in place of the primitive method of aligning by calculation in an operator's head when manually setting a document.

One method is to provide a reading device 33 in the middle of the document feed path by the feed belt 18 (FIG. 1) of the document exchange device 1;
The mark indicating the composite position written on the 1st YK draft and the mark indicating the information position written on the 2nd draft are read, stored in the control device of the copying machine, and the deviation between the composite position and the information position is calculated or as described later. Activate the position adjustment means.

Instead of writing directly on the manuscript, place a third
As shown in the figure, a setting table 36 having a reference position indicator 34 for setting the original and a large number of pressure-sensitive elements 35 is installed, and the original 22 or 23 is placed on the setting table 36, and the composite area or information of the original is placed on the setting table 36. A point indicating the range of area 37 is pressurized. It is also possible to cause the control device to store a composite area or an information area based on a pressure signal from the pressurized pressure sensitive element 35.

The set table 36 can be installed, for example, on the document table 38 shown in FIG.

It is also possible to install a CRT display instead of the set table having the pressure-sensitive element 35, display the original on the CRT display, and indicate the composition position, information position, etc. using a light pen or the like.

The document exchange device 1 shown in FIG. 1 is an example in which a sheet-shaped document is conveyed to the exposure position with a belt. However, in the case of a thick document in the form of a book, the document exchange device 1 is flipped up around a pivot and the document is placed. It is also possible to copy a book-shaped original by exposing the glass 17 and placing the original on it. In this case, it is convenient to place the set table 36 at an appropriate position on the copying machine so that it can be used. 1st
The document conveying system of the document switching device shown in the figure, the switching system between sheet documents and book-like documents, etc. are known techniques (Japanese Unexamined Patent Publication No. 5
3-91747) can be used.

When the deviation between the copying position specified in advance in the same way as the synthesis position or the synthesis position of the first original and the position of the specified information to be copied on the original is calculated by the control device, the deviation is calculated. Make corrections. As a positional deviation correction device, a device for adjusting the timing between the exposure of the original or the movement of the photoreceptor and the movement of the copy paper or transfer paper is provided to correct the deviation in the direction of movement of the copy paper. For example, as described above, the control device is provided with a timing device that adjusts the drive timing of the registration rollers that cause the transfer drum and the transfer paper to stop and stand by. For example, a switch and a timer for detecting the scanning movement of the illumination light source are used.゛To compensate for lateral deviations in the direction of copy paper movement,
That is, in the case of slit exposure, a method is used in which the lens is moved in a direction perpendicular to the optical path in order to compensate for the deviation in the slit I-longitudinal direction. In FIG. 4, when exposing information in partial range a of document range A,
Usually, an image is formed on a partial area of area B of the photoreceptor. The photoreceptor corresponds to copy paper or transfer paper. If the lens 4 is now moved by Q/2 in the direction perpendicular to the optical axis, it will move from the partial area on the photoreceptor to a partial area b' moved by a distance .degree. C. in the direction in which the lens 4 has moved.

That is, by selecting the amount of movement of the lens in the direction perpendicular to the optical path, it is possible to arbitrarily select the image forming position on the photoreceptor, particularly on the copy paper, in the direction perpendicular to the direction of movement of the copy paper.

If used in conjunction with magnification conversion by moving the lens 4 along the optical axis, variable magnification copying and composite copying can be performed at the same time. The amount of movement of the lens in the direction perpendicular to the optical axis is set by calculating the deviation between the information position and the designated copying position by the control device using the method described above, and controlling the lens moving device using the signal obtained.

As a structure for moving the lens, for example, as shown in FIGS. 5 and 6, a lens stand 39 to which the lens 4 is fixed is supported by a lens bracket 40, and the lens bracket 40 is rotatably supported by an optical system frame 41. Threaded shaft 42
A structure can be used in which the lens 4 is moved in a direction perpendicular to the optical axis by screwing the lens 4 into the optical axis and reversibly rotating the screw shaft 42 directly by the motor 43 or by the motor 43 via a belt or the like. If the movement of the lens bracket 40 is guided by a guide bar 44 fixed to the optical system frame 41, the lens can be smoothly reciprocated without tilting. If the optical system frame 41 itself is screwed onto a threaded rod or the like in the same manner as shown in FIGS. 5 and 6 and made movable in the optical axis direction, magnification can be changed.

In addition to the method of controlling the feeding timing of the copy paper and controlling the movement of the lens, the deviation of the information position can be compensated for by making the document movable together with the document placement glass in one direction or in two orthogonal directions. You can also use a method to adjust the

To adjust the deviation in the lateral direction with respect to the copy paper feeding direction, a method of moving the photoreceptor or the photoreceptor drum, instead of the lens, in the lateral direction, that is, in the direction along the rotation axis of the drum, can also be used.

As an erasing method for erasing unnecessary portions of a document, at least four white masking plates, each movable independently, are provided on the back surface of the document placement glass 17. Of the four masking plates, two can be moved vertically and the other two can be moved horizontally, and each masking plate is moved in response to a signal indicating the area of information to be copied, and the four masking plates cover the four sides outside the copying area. It is shielded from exposure with a masking plate.

As another method, an illumination light source is provided opposite to the moving path of the photoreceptor, and the portion of the photoreceptor outside the copy area that is charged by a signal for specifying the copy area of the original is neutralized.

It is convenient to subdivide the light source in order to eliminate static in the area outside the copying area in the lateral direction with respect to the moving direction of the photoreceptor, so that the illuminated area can be arbitrarily controlled by using, for example, a group of minute lamps in - rows. be. Alternatively, as shown in FIG. 1, a method is used in which a halftone screen 45 is disposed between an illumination lamp 46 and a photoreceptor 6, and static electricity is removed in advance from the area of the document other than the area where an image will be formed by exposure to light. You can also do that.

When compositing information from multiple manuscripts, you may want to determine that each piece of composite information is from a different manuscript 0 For example, when creating an original drawing of the front and back patterns of a double-sided printed board, the front and back patterns are compositely confirmed. In some cases, it is desirable to be able to distinguish patterns corresponding to the front and back sides of a composite copy. In this case, an image is created for the first original using a normal copying process, and an image is created for the second original using the halftone dot pattern creation screen 4 as shown in FIG.
A halftone dot copy is obtained by irradiating the original with a full-surface exposure lamp through the photoreceptor 5 and forming a light image of the original on the photoreceptor. This makes it possible to distinguish between the two originals. Furthermore, by changing the charging conditions, transfer conditions, or developing bias voltage for each document, it is also possible to change the density of the image of each document and to discriminate each document. Furthermore, if a plurality of developing sections are provided, the color of the toner in each developing section is changed, and by developing each document with a different toner, it is possible to form images of different colors and identify the documents.

According to the present invention, it has become possible to compositely copy arbitrary plural pieces of information from plural manuscripts without requiring complicated work.

[Brief explanation of drawings]

1 and 2 are explanatory diagrams of modified examples of the composite copying apparatus according to the present invention, FIG. 3 is an explanatory diagram of a set table having a large number of pressure-sensitive elements, and FIG. 4 is an explanatory diagram of lateral positional deviation. 5 is a plan view of a lens moving device that implements the method shown in FIG. 4, and FIG. 6 is a parent view of the device shown in FIG. 5.

Claims (1)

[Claims] A storage tray for temporarily storing copy paper after transfer, a paper discharge tray for discharging the transferred copy paper, a discharge path connecting the transfer position and the paper discharge tray, and a connection between the transfer position, the storage tray, and the transfer position. In a copying machine that has a circulation path that connects the discharge path and a switching gate that switches between the discharge path and the circulation path, and that synthesizes and copies a plurality of image information onto a desired position on a sheet of copy paper, the copying machine is powered by electricity. 1. A copying apparatus characterized in that a CRT display is connected to the CRT display, image information of a document is displayed on the CRT display, and a combination position, information position, etc. are indicated using a light pen.