JPS6224276A - Copying device - Google Patents

Abstract

PURPOSE:To synthesize and transfer a piece of information at random without troublesome work by installing a reader on the way of an original feed route and storing a mark written on an original in a reader controller. CONSTITUTION:In order to transfer information on each image by fitting the prescribed position of a transfer paper when plural originals are synthesized and transferred, the original is positioned. Instead of a primitive method positioning the paper through operator's calculation in mind at the time of setting manually the original, the alignment of the position is made with semi- automation or full automation. The reader 23 is installed on the way of the original feed route by the feed belt 18 of an original replacing device 1, reads the mark which shows a synthesizing position written on the 1st original and the mark which shows an information position written on the 2nd original, stores them in the controller of a copying machine, and calculates a shift between the synthesizing position and the information position, or operates a position adjusting means.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a copying apparatus that copies a plurality of image information of a document onto a desired position on a sheet of copy paper.

411 Copying apparatuses that combine and copy image information of two originals onto one 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, that is, a perforated 1M document with holes for storing format data, i.e., information that changes from time to time, and a second document having information in the holes in the first document. A conventional copying machine is used to overlay a first original and a second original so that a predetermined portion of the first original and the second original are aligned and copy them as one original.

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.

1-An object of the present invention is to eliminate the drawbacks of the conventional art and provide a copying apparatus that can easily specify an image area of a document to be copied and a position where the image is to be copied and reproduced. .

The object of the present invention is to provide a reading device on the document placing table or in the middle of the document feeding path to the document placing table, and to read and store marks such as information positions and composition positions written on the document in the reading control device. This was achieved using a copying device featuring the following features.

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

In FIG. 1, a first document set at a predetermined position by a document changing 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 6, for example a photoreceptor drum, is moving, the electrostatic latent image is developed and visualized by the developing device 8.

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, images of a predetermined number of documents starting from the third 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 first place to record information
It is convenient to configure the document exchange device 1 with means 20 for exchanging documents 22 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 a document is scanned and illuminated by reciprocating the light source and the mirror by displacing some other mirrors.

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 images of the first original 19 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 document 19, the light source 2 is switched to the second f! It is also possible to use the light source 2 and the light source 2' by moving it beyond the illumination scanning range for the document 23 and illuminating the document 23 at a fixed position.

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 and fixed by a fixing device 15, a storage path 29 is provided that can be switched by a first gate 28 with respect to a path to a paper discharge tray 16.
through the storage tray 30. When feeding the paper into the storage tray 30, it is always turned upside down so that the leading end is fed as the leading edge, and in the illustrated example, the paper is fed and stored with the copy side facing down.

After one or a predetermined number of copies of the first Ji manuscript are stored in the storage tray 30, the second manuscript 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 sheets are stored in the storage tray 3o in a number corresponding to the number of originals to be combined, and are sent again to the transfer position of the photoreceptor 6, so that the transfer sheets are 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 between the theorem device 15 and 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.
can be provided. When the transfer paper is sent to the storage tray 30 through the switching path 32 by switching the second gate, 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.

By providing two gates 28, 31 to enable switching of two ways of feeding the transfer paper to the storage tray, composite copying, double-sided copying, and even double-sided composite copying can be made possible.

That is, double-sided composite copying is possible by performing the above-mentioned composite copying operation on one side, then feeding the paper through the cutting and switching path 32 from the second gate 31 to the storage tray 30, and then performing the above-mentioned composite copying operation on the back side again.

When making a composite copy of a plurality of originals, the originals are aligned in order to align each information image with a predetermined position on the copy paper. 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 composition position written on the first manuscript and the mark indicating the information position written on the second manuscript are read and stored in the control device of the copying machine, and the deviation between the composition 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-like 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 placed on the document placement glass. It is also possible to copy a book-shaped original by exposing the portion 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. The document conveying system of the document switching device shown in FIG.
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 longitudinal direction of the slit. In FIG. 4, when exposing information in a partial range a of a document range A, the image is normally formed on a partial cylinder 1b of a range B of the photoreceptor.

The photoreceptor corresponds to copy paper or transfer paper. now lens 4
When the lens 4 moves by fl/2 in the direction perpendicular to the optical axis, it moves from the partial area on the photoreceptor to a partial area b' moved by a distance Q in the direction in which the lens 4 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 a lens bracket 4o 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 screw stud 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 are movable in the vertical direction of the document and the other two are movable in the horizontal direction, and each masking plate is moved in response to a signal indicating the area of information to be copied, and the four sides outside the copying area are moved. It is shielded from exposure with two masking plates.

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 combining information from a plurality of manuscripts, there are cases where it is desired to determine that the pieces of combined information are from different manuscripts. For example, when the front and back patterns of a double-sided printed board are created as originals and the front and back patterns are combined and confirmed, it is desirable to be able to distinguish between the patterns corresponding to the front and back sides of the combined 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.
When a light image of the original is formed on the photoreceptor by irradiating it with a full-surface exposure lamp through the photoreceptor 5, a halftone copy is obtained. 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 pieces of information from a plurality of J'M manuscripts without requiring complicated work.

[Brief explanation of drawings]

FIGS. 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 position shift adjustment. FIG. 5 is a plan view of a lens moving device that implements the method of FIG. 4, and FIG. 6 is a parent view of the device shown in FIG.

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 apparatus that has a circulation path that connects between the two, 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 an arbitrary position on a sheet of copy paper, the copying device A copying apparatus characterized in that a reading device is provided in the middle of a document feeding path to a document mounting table, and marks such as information positions, composition positions, etc. written on the document are stored in the reading control device.