JPH0315751B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording method in a copying machine or the like.

In general, the results obtained by copying machines and the like are only visual information objects, and cannot be used in automatic search machines, so the scope of use of the results is limited. On the other hand, magnetic recording materials such as tapes, cards, and disks are unsuitable as visual information media and have a single function.

However, in the past, it has been proposed to perform both visible image formation and magnetic recording on the same recording medium for diversification. It is known to form visible images by electrophotography.
However, when forming images by electrophotography, heat fixing means is generally used as a fixing means, and the surface condition of the magnetic recording layer on the recording medium is deformed in this heat fixing process, This adversely affects the magnetic recording characteristics performed by the magnetic recording means after fixing.

The present invention has been made in view of these points, and it is an object of the present invention to provide a recording method that can obtain visible information using electrophotography and also perform magnetic recording without being adversely affected by the heat fixing process. The purpose is to

In the present invention, a visible image is created by a normal electrophotographic method using magnetic toner, and in this process, a uniformly charged area is secured adjacent to the electrostatic latent image area, and then developed and transferred.・Fixing is also performed, and by performing magnetic writing on the fixed and stable toner layer on the recording medium that corresponds to the uniformly charged area, a recorded matter containing both visible information and magnetically recorded information can be obtained. The structure is such that there is no noise between information, and an extremely high writing information density can be obtained.

An embodiment of the present invention will be described based on the drawings.

This embodiment is applied to a copying machine, and first, an apparatus for carrying out the method of the present invention will be explained. A photosensitive drum 1 that rotates in the direction of the arrow is provided as a latent image carrier in the main body of the copying machine, and a charging device 2, a charging device 2,
An optical system 3, a developing device 4, a transfer device 5, a separating device 6, a cleaning device 7, and a static eliminator 8 are arranged in this order. Here, the optical system 3 illuminates the document 12 passing over the contact glass 10 toward the document tray 11 using the conveyance roller 9, and forms an electrostatic latent image on the photoreceptor drum 1 according to the document image. be. The toner 13 used in the developing device 4 is a so-called magnetic toner, such as one made of a mixture of magnetic powder and resin powder, or one made of resin particles containing magnetic powder inside. It is being The transfer paper 14 as a recording medium is supplied to the transfer device 5 side by a paper feed roller 15, a registration roller 16, etc., and after being transferred and separated, it is conveyed to a heat fixing device 18 by a conveyance device 17. . A paper ejection roller 19 and a tray 20 are provided on the ejection side of the heat fixing device 18 . Further, a magnetic recording head 21 is provided at a predetermined position between the heat fixing device 18 and the paper discharge roller 19. A magnetic reproducing head 22 is also provided at a predetermined position between the conveying rollers 9.

The first mode, in which a visible image of an ordinary original 12 is obtained and magnetic writing is performed at the same time, will now be described. When the original 12 is inserted up to the transport roller 9, it is transported at a constant speed, and as it passes over the contact glass 10, it is illuminated by the optical system 3, and is projected onto the photoreceptor drum 1, which has been uniformly charged by the charging device 2. An electrostatic latent image is formed. At this time, by making the exposure width by the optical system 3 narrower than the charging width by the charging device 2 (for example, as shown in FIG. 2, only the front side of the contact glass 10 is formed short), the photoreceptor drum 1 Above, an electrostatic latent image area W ₁ and an adjacent uniformly charged area W ₂ are formed together. Then, when reaching the developing device 4, the electrostatic latent image in the electrostatic latent image area _W1 and the uniformly charged area _W2 are simultaneously developed with the toner 13,
Visualized. Next, when reaching the transfer device 5,
A transfer operation is performed on transfer paper 14 that is fed at a predetermined timing. The transferred transfer paper 14 is separated from the photoreceptor drum 1 by the separating device 6, and sent to the heat fixing device 18 by the conveyance device 17, where it is heat-fixed. As a result, all the development, transfer _{, and fixing steps for the electrostatic latent image are completed, visible image information is obtained, and the area w2 of} the transfer paper 14 corresponding to the uniformly charged area W2 is also covered with the image that has been transferred and fixed. A uniform toner layer will be formed. Therefore, the magnetic head 2 is placed on the passage path of this area _w2 of the transfer paper 14.
1 is placed on the transfer paper 1 after fixing.
4 passes through the magnetic recording head 21, the necessary information previously entered by the keyboard 23 is written by the magnetic recording head 21 into the uniform magnetic toner layer in the area _w2 . At this time, the uniform magnetic toner layer has been fixed, its surface condition is stable as if it were coated, and the magnetic recording characteristics are good. In this way, a recorded object having visible image information and magnetically recorded information is obtained on the tray 20.

Next, a second mode for reading magnetically recorded contents from the original document 12 having magnetically recorded information will be explained. That is, the transfer paper 14 that has been copied as described above is used as the original document 12, and the transport roller 9 is placed with the area _w2 having magnetic information on the front side corresponding to the magnetic reproducing head 22 disposed on the front side. Insert into. In this way, the information is read when passing through the magnetic reproducing head 22, and the read information is displayed on a display device (not shown).
In this second mode, the electrophotographic process is not performed, and the original 12 that has been read is ejected to the original tray 11 as it is.

Further, a third mode will be described in which the transfer paper 14 obtained as a result of the first mode is used as the original 12 and magnetic writing is performed while obtaining visible information from the transfer paper 14. This third mode is a mixed mode of the first and second modes, in which visible image information is obtained in the same manner as in the first mode, and magnetic recording information is read by the magnetic reproducing head 22 according to the second mode and then transferred to the magnetic recording head 21. The information is transferred to the computer and magnetic writing is performed.

Therefore, according to such a copying machine, for example, when copying technical information, " _title ", "source", "reporter", "content code", " If information such as "keywords" is written magnetically, this magnetic writing area can be used to quickly and automatically search for information. It can also be used to process confidential information.

In this embodiment, a copy recording method in which an electrostatic latent image is formed using the original 12 has been described, but a facsimile reception and recording method that does not directly use the original 12, a recording method using a multi-stylus, etc. is also possible. Of course it can be applied. Further, the magnetic writing information may be written as an audio signal by inputting voice as in a tape recorder, instead of using the keyboard 23.

As described above, the present invention forms a uniformly charged area adjacent to an electrostatic latent image area on a latent image carrier, develops the electrostatic latent image with magnetic toner, and transfers it onto a recording medium. Since the toner layer is fixed and magnetically written in a uniformly charged area, magnetic recording characteristics can be stabilized when visual image information and magnetic recording information are obtained on the same recording medium. In particular, since the toner layer is uniform, there is no noise between information, and an extremely high written information density can be obtained.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a schematic side view, and FIG. 2 is a schematic plan view showing the arrangement thereof. 1... Photosensitive drum (latent image carrier), 13...
Toner, 14... Transfer paper (recording material), W ₂ ... Uniformly charged area.

Claims (1)

[Claims] 1. An electrostatic latent image and a uniformly charged area adjacent to the electrostatic latent image area are formed on a latent image carrier, and these electrostatic latent image and uniformly charged area are formed using a toner containing magnetic powder. A recording method characterized in that after simultaneous development, the toner is transferred and fixed onto a recording medium, and magnetic writing is performed on a uniform toner layer on the recording medium corresponding to the uniformly charged area.