JPS636584A - Electrophotographic copying machine provided with laminating function - Google Patents

Abstract

PURPOSE:To laminate a transparent synthetic resin film to a sheet-shaped printed matter, etc., by setting a heating a temperature of a fixing device to about 180 deg.C-200 deg.C, and setting a carrying speed for copying to 3-5m/min. CONSTITUTION:A heating temperature by heating rollers 31, 32 of a fixing device 30 is set to 180 deg.C-200 deg.C. On the other hand, a carrying speed for copying is set to 3-5m/min which is suitable for laminating a transparent synthetic resin film to a sheet-shaped printed matter, etc., in relation to the heating temperature. Accordingly, an electrophotographic copying machine not only can execute a regular copying operation but also can stick and laminate the sheet- shaped printed matter and the transparent synthetic resin film.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electrophotographic copying machine, and in particular, to an electrophotographic copying machine,
This invention relates to an electrophotographic copying machine capable of laminating sheets of printed matter such as cards, business cards, posters, and maps with transparent synthetic resin films.

(Prior art) Sheet-like printed materials such as identification cards, cards, business cards, posters, maps, etc. have drawbacks such as being easily wrinkled and bending, and furthermore, they tend to get dirty, scratched, etc. with use. There is a risk that it will stick, and its lifespan is very short. For this reason, recently, such sheet-like printed matter is laminated with a transparent synthetic resin film. This lamination makes sheet-like printed matter waterproof, makes it resistant to stains and scratches, prevents bending and wrinkles, and significantly improves the durability of sheet-like printed matter.

Conventionally, lamination of sheet-like printed matter and the like with transparent synthetic resin films has been carried out using a specialized laminating machine.

Lamination using a special lamination machine is a transparent synthetic resin film with a special adhesive layer formed on one side.

This is carried out by arranging a sheet-like printed matter or the like so that the surface on which the adhesive layer is formed is joined to the surface of the sheet-like printed matter to be laminated, and then passing the sheet-like printed matter through a special laminating machine. This special laminating machine heats and presses the laminate that passes through it twice to adhere and laminate the sheet-like printed matter and the transparent synthetic resin film. When laminating the back side of a printed matter, etc., the transparent synthetic resin film with an adhesive layer formed thereon may be placed on the back side as well, and the film may be passed through a special lamination machine.

What types of sheet-like printed matter should be laminated?

It is limited to some extent depending on the purpose of use, size, etc.

Furthermore, since the durability of printed materials that have been laminated once is improved, there is no need to frequently laminate sheet-like printed materials. Additionally, since it is a laminating machine, it cannot be used for other purposes.

Furthermore, because dedicated laminating machines are relatively expensive, they are hardly ever popular for home use and for personal use, and there are very few opportunities to easily laminate printed matter for personal use. There wasn't.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional problems, and its purpose is to provide an electrophotographic copying machine that can laminate a transparent synthetic resin film on a sheet-like printed matter, etc. It is in.

(Means for solving the problem) A special laminating machine heats and presses the inserted transparent synthetic resin film on which the adhesive layer is formed and the sheet-like printed matter, melting the adhesive of the adhesive layer, It is used to adhere. The inventor of the present invention has focused on the fact that an electrophotographic copying machine has a function of heating and pressurizing a sheet-like printed matter or the like.

The heat fixing device of an electrophotographic copying machine uses a heated roller to apply pressure and heat to melt a toner image transferred to a transfer paper on a boat, and fix it on the transfer paper. The fixing device is 9
Usually, the temperature is set at 180 to 200°C. Further, the rotational speed of the photosensitive drum is set equal to the transport speed of the transferred transfer paper.

When laminating sheet-like printed matter with a transparent synthetic resin film on which an adhesive layer is formed, heat the adhesive of the adhesive layer formed on the transparent synthetic resin film to a temperature that melts it, and then laminate the printed matter and the transparent It is necessary to transport it at a speed that will ensure that the synthetic resin film is bonded to the synthetic resin film. If the heating temperature is high, the conveying speed can be increased to shorten the heating time. Conversely, if the heating temperature is low, the conveying speed can be slowed down to lengthen the heating time. If the conveyance speed is kept constant, if the conveyance speed is too fast, the adhesive in the adhesive layer will not be melted completely and the two will not be bonded securely, and if it is too slow, the adhesive in the adhesive layer will melt too much and flow out.
The heat fixing device used in the copying machine of the present invention preferably includes both heating rollers. This is because when laminating both the front and back sides of a sheet-like printed matter, etc., the one-sided heating roller heats and melts the adhesive in the adhesive layer, so the adhesive layer of the film on the front side is heated through the film.

The adhesive layer of the film on the back side is heated through the front film and the printed matter. In this way, a lot of heat is applied to the synthetic resin film on the front surface, and not so much heat is applied to the film on the back surface. There is no problem fixing the toner image, but 5
When laminating a synthetic resin film onto a printed matter, etc., the shrinkage of the film differs between the front and back sides, so there is a risk that the entire film may curl or wave along the rollers.

The heating temperature of the heat fixing device of the electrophotographic copying machine is 180 to 2
The inventor of the present invention has found that the preferred conveying speed of the laminate at this heating temperature is 3 to 5 m/min.

The present invention has been made based on this knowledge.

An electrophotographic copying machine with a laminating function according to the present invention.

An exposure device that exposes a document image to form an electrostatic latent image corresponding to the document image on a photoconductor, a developing device that develops the electrostatic latent image with toner, and a conveyance device that conveys the transfer paper. , a transfer device that transfers the toner image on the photoreceptor to the transfer paper conveyed by the conveyance device, and a fixing device that heats and melts the toner image on the transfer paper and fixes it to the transfer paper while the transfer paper is being conveyed. and,
has.

The heating temperature of the fixing device is set at about 180 to 200°C, and the fixing device and the conveying device are arranged such that the conveyance speed for copying is adjusted to the sheet shape of the transparent synthetic resin film on which the adhesive layer is formed, depending on the heating temperature. The conveying speed is set at 3 to 5 m/min, which is suitable for laminating printed matter, etc., thereby achieving the above object.

(Example) Examples of the present invention will be described below.

As shown in FIG. 1, the electrophotographic copying machine of the present invention has a photosensitive drum 10 in the center of the machine body.
An exposure device W11 is disposed above.

A document table 12 is provided at the top of the machine, and the document table 1
2 is movable in the direction shown by arrow A in Figure 9.

The photosensitive drum 10 is rotatable in the direction shown by arrow B in FIG. Photosensitive drum 1 from the exposed position
A charging device 14 is disposed on the upstream side in the rotational direction of 0. Further, a developing device 13 is disposed on the downstream side in the rotational direction of the photosensitive drum 10 from the position where the photosensitive drum 10 is exposed. Further, below the photosensitive drum 10, a transfer/separation device 15 is provided. The transfer/separation device 1
A cleaning device 16 is disposed between the charging device 5 and the charging device 14 .

between the photosensitive drum 10 and the transfer/separation device 15.

A conveyance path 20 is formed for conveying the transfer paper in the forward direction of the rotation direction of the photoreceptor drum 10. The conveyance path 20 runs from an upstream section 20a upstream of the photoreceptor drum 10 inside the machine, to
It communicates with the downstream section 20b on the downstream side. At the upstream end of the upstream portion 20a of the conveyance path, there is a paper feed cassette 2 containing transfer paper.
1 is installed. Above the paper feed force cera) 21,
A manual paper feed table 22 is provided for inserting transfer paper into the conveyance path 20 one by one. The nuclide feed tray 22 also communicates with the upstream portion 20a of the conveyance path. The upstream portion 20a of the conveyance path transfers the transfer paper fed from within the paper feed center 21 or from above the manual paper feed stand 22 to the paper feed rollers 24 or 25. A conveyance system composed of conveyance rollers 26 guides the image to the transfer/separation device 15 .

A conveyance belt 23 serving as a conveyance device is disposed midway along the downstream portion 20b of the conveyance path, and a fixing device 30 is attached to the downstream end thereof.

The fixing device 30 has a pair of heating rollers 31 and 32. The reheating rollers 31 and 32 are, for example, metal rollers made of iron coated with fluororesin, and a heater 31a is installed inside the rollers.

32a are arranged respectively. In the present invention, the heating temperature by the heating rollers 31 and 32 is 180 to 200.
It is set at around °C. On the downstream side of the fixing device 30.

A paper discharge roller 40 is provided.

In the electrophotographic copying machine of the present invention, the conveying speed of the conveying device and the fixing device 30 is set to 3 to 5 m/min. At this conveyance speed, the temperature in the fixing device 30 is 180 to 200°C.
The toner image is fixed onto the transfer paper at a heating temperature of about 100 mL. The heating temperature and conveyance speed are, for example, 1 for sheet-like printed matter.

It is also suitable for laminating transparent synthetic resin films on which polyethylene terephthalate adhesive layers are formed. As the conveying speed of the conveying device is set to 3 to 5 m/min, the moving speed of the document table 12 and the photosensitive drum 10 are
The rotation speed is also set to the same speed as this 3 to 5 m/min during copying operations.

The original image is copied onto the transfer paper at this speed of 3 to 5 m/min.

The copying operation performed by such an electrophotographic copying machine is as follows.

It is as follows. Place the original on the original table 12.

When the copying operation is started, the document table 12 is moved at a speed of 3 to 5 m/min, which is relatively slower than the moving speed of the document table of a typical copying machine. This conveyance speed corresponds to a copying speed of approximately 5 to 10 copies per minute. At the same time, the photosensitive drum 10 is also rotated at a circumferential speed equal to this moving speed. and.

The photoreceptor on the surface of the photoreceptor drum 10 is uniformly charged by the charging value π14, and the image of the document placed on the document table 12 is exposed onto the surface of the photoreceptor drum IO by the n-light device 11. Through this exposure, an electrostatic latent image corresponding to the original image is formed on the surface of the photoreceptor drum 10.

The electrostatic latent image is formed as the photoreceptor drum IO rotates.

The image is developed with toner by the developing device 13. On the other hand.

Paper feed roller 24 or 25. ! The transfer paper is transported by the II transport roller 26 to the transfer/separation device through the upstream section 20a of the transport path. In this case, the paper feed roller 24 or 25. The transport speed of the transfer paper by the II transport roller 26 is 3
~5m/min. Then, the toner image on the photoreceptor is transferred to the upstream portion 20a of the Vi feed path by the transfer/separation device 15.
The image is then transferred to the transfer paper that is being transported from there. At the same time, the transfer paper is separated from the photosensitive drum 10. Residual toner on the surface of the photosensitive drum 10 is removed by a cleaning device 16.

The transfer paper on which the toner image has been transferred is transported through the downstream portion 20b of the transport path by the Ti transport belt 23, and is fed to the fixing device 30. The conveyance speed of the conveyor belt 23 is also set to 3 to 5 m/min. And the heating roller 3 of the fixing device 30
The toner image is heated and melted at a temperature of about 185° C. while being pressurized while passing between the transfer paper 1 and 32 at a conveyance speed of 3 to 5 m/min, and is fixed onto the transfer paper. The transfer paper on which the toner image has been fixed is discharged to the outside of the machine by a paper discharge roller 40.

The electrophotographic copying machine of the present invention can also laminate sheet-like printed matter with a transparent synthetic resin film on which an adhesive layer is formed. In this case, as shown in FIG. 2, a transparent synthetic resin film 5 with an adhesive layer formed on one side 51a.
1 is folded in half so that the surfaces 51a on which the adhesive layer is formed face each other, and a sheet-like printed matter 52 is placed in the gap.

The area of the folded film 51 is slightly larger than the area of the printed matter 52, and the peripheral edges of the folded film 51 are opposed to each other. The laminate 50 is placed on the 9-manual paper feed tray 22 and inserted into the upstream portion 20a of the conveyance path from the bent edge side. Then, no original is placed on the original table 12 to prevent an electrostatic latent image from being formed on the surface of the photoreceptor drum IO. In this state, the copying machine is operated to perform a normal copying operation. As a result, the laminate 50
is conveyed at a speed of 3 to 5 m/min through the upstream portion 20a of the conveying path by the paper feed roller 25 and the conveying roller 26, comes into contact with the surface of the photosensitive drum 10, and is further transported to the downstream portion of the conveying path by the conveying belt 23. 20b at a speed of 3 to 5 m/min.

The image is fed to the fixing device 30.

In this case, no electrostatic latent image is formed on the surface of the photoreceptor drum 10 and no toner is attached to the surface, so that no toner is attached to the surface of the transparent synthetic resin film 51 of the laminate 50 being transported. .

The laminate 50 fed into the fixing device 30 passes between heating rollers 31 and 32 at a speed of 3 to 5 m/min. While the laminate 50 passes between the two rollers 31 and 32, the adhesive of the adhesive layer formed on one side 51a of the transparent synthetic resin film 51 is heated and melted, and the film 51 becomes a sheet. The printed material 52 is pressed against the printed material 52, and the two are firmly bonded together using a molten adhesive. At the same time, the peripheral edges of the film 51 are also firmly adhered to each other. Thereby, the sheet-like printed matter 52 is laminated with the transparent synthetic resin film 51, and is ejected from the fixing device 30, and then ejected out of the machine by the paper ejection roller 40. In this way, a sheet-like printed matter or the like laminated with a transparent synthetic resin film is obtained.

During the lamination, the conveying device and the fixing device 30
The conveyance speed of photosensitive drum 10. is the same as the conveyance speed during copying operation. Original table 12. Charging device 14. Developing device 13. The transfer/separation device 15 and the like operate in the same manner as in the copying operation. Therefore, it is possible to copy an image such as a single character onto a transparent synthetic resin film that is laminated onto a sheet-like printed matter or the like. In this case, the document table 12
The above-described laminating operation may be performed with a document having an image to be copied placed thereon.

In addition, in the above-mentioned embodiment, the printed matter 52 to be laminated
The laminate 50 of the transparent synthetic resin film 51 with an adhesive layer formed thereon is fed to the fixing device 30 from the single manual paper feed tray 22, but this is not applicable to electronic photographs that do not have such a manual paper feed tray. In a copying machine, the laminate 50 may be mounted in the paper feed center and fed.

As the transparent synthetic resin film to be laminated to the printed matter, etc., there is used a material having excellent transparency, such as a polyethylene terephthalate film, which is less denatured by the heating temperature in the fixing device.

(Effects of the Invention) As described above, in the electrophotographic copying machine of the present invention, the heating temperature of the heat fixing device is set to 180 to 200°C, and the speed of the conveyance system in the fixing device is set to Due to the heating temperature, the speed is set at 3 to 5 m/min, which is suitable for laminating sheet-like printed matter with a transparent synthetic resin film on which an adhesive layer is formed. In addition to copying operations, it is also possible to laminate transparent synthetic resin films on which adhesive layers are formed, such as sheet-like printed matter. Further, the electrophotographic copying machine performs the same operation during lamination as it does during copying.

An image such as a single character can be copied onto a transparent synthetic resin film that is laminated onto a sheet-like printed matter or the like.

4. Figure 1 is a longitudinal sectional view of an electrophotographic copying machine, and Figure 2 is a sectional view of a laminate.

10... Photosensitive drum, 11... Exposure device, 13.
...Developing device, 15...Transfer/separation device, 20...
Conveyance path, 22... Manual feed tray, 23... Conveyance belt + 24.25... Paper feed roller.

26... Conveyance roller, 30... Fixing device, 31.
32...Heating roller, 50...Laminated body, 51...
Transparent synthetic resin film.

52...Sheet-like printed matter.

that's all

Claims (1)

[Scope of Claims] 1. An exposure device that exposes a document image to form an electrostatic latent image corresponding to the document image on a photoreceptor, and a developing device that develops the electrostatic latent image with toner; A conveyance device that conveys the transfer paper, a transfer device that transfers the toner image on the photoreceptor to the transfer paper conveyed by the conveyance device, and a transfer device that heats and melts the toner image on the transfer paper while the transfer paper is conveyed. a fixing device that fixes the image on the transfer paper using a heating temperature of about 180 to 200° C.; An electrophotographic copying machine with a laminating function, which is set at a transport speed of 3 to 5 m/min, which is suitable for laminating a transparent synthetic resin film on which an adhesive layer is formed with a sheet-like printed matter. 2. The electrophotographic copying machine with a laminating function according to claim 1, wherein the fixing device includes a pair of heating rollers equipped with a heater inside.