JPH0139112B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a magnetic recording method and an electrostatic recording method,
The present invention relates to a magnetoelectrostatic recording method in which a magnetic latent image and an electrostatic latent image are recorded on a two-layer medium provided on one substrate.

As an electrophotographic recording method, the Carlson method, which produces an electrostatic latent image on a photoconductor, is widely used.

When copying a document, etc., in addition to the contents of the document, when copying ruled lines, maps, etc., the conventional method separates the document copy and the superimposed copy (rules, map). 2 in the process
It needed serious treatment.

For this reason, it is necessary to use a device that duplicates the developing and printing processes, which has the disadvantage of making the device complicated and expensive.

The purpose of the present invention is to solve the above problems.
An object of the present invention is to provide a magnetoelectrostatic recording method in which a magnetic layer and a photoconductor layer are stacked on a conductive substrate, and both magnetic recording and development and electrostatic recording and development are performed in one process.

The present invention uses a two-layer recording medium consisting of a magnetic layer provided on a conductive substrate and a conductive layer provided above the magnetic layer, and writes by applying an electric signal to a write magnetic head. By doing this, a magnetic latent image is generated in the magnetic layer, and an electrostatic latent image is generated in the photoconductor layer by the optical image irradiated from the exposure device, so that the optical image and the magnetic image are simultaneously recorded. This is a magnetoelectrostatic recording method characterized by:

For example, aluminum is used for the conductive substrate, permalloy is used for the magnetic material, and selenium is used for the photoconductor.

Hereinafter, the present invention will be explained with reference to the drawings.

FIG. 1 is a cross-sectional view illustrating the structure of a recording medium according to the present invention, in which 1 is a substrate, 2 is a magnetic layer, and 3 is a photoconductor layer.

In FIG. 1, the recording medium has a structure in which a magnetic layer 2 is provided on a substrate 1 and a photoconductor layer 3 is provided on top of the magnetic layer 2. A magnetic latent image can be generated by a magnetic head provided on the magnetic head.

Further, an electrostatic latent image is generated on the photoconductor layer 3 by a light image irradiated onto the surface thereof.

The recording (developing) process according to the present invention will be explained in detail based on FIG.

FIG. 2 is a schematic diagram of an embodiment of the present invention, in which numeral 4 is a recording drum, 5 is an erasing lamp, 6 is a magnetic erasing head, 7 is a cleaner, 8 is a magnetic head for writing, and 9 is a developer for magnetic recording. 10 is a magnetic toner attached to a drum, 11 is a corona discharger, 12 is an exposure device for copying, 13 is an optical system, 14 is a light source, 1
5 is a copy original, 16 is a developing device, 17 is a toner attached to a drum, 18 is copy paper, 19 is a transfer corona discharger, 20 is a transferred toner, 21 is a fixing unit, and 22 is a fixing roller.

In FIG. 2, the recording drum 4 is a cylindrical rotating drum, and on its surface there are two
A recording medium of layers, namely a magnetic layer 2 and a photoconductor layer 3, is provided.

The recording drum 4 rotates to the left, and develops magnetic recording during the first half rotation, and develops electrostatic recording during the remaining half rotation.

Therefore, during one revolution of the recording drum 4, different recordings can be developed on two layers of recording media.

It goes without saying that the order of the two developments described above may be reversed, with the development for electrostatic recording being carried out first and then the development for magnetic recording being carried out.

In FIG. 2, the photoconductor layer 3 of the recording drum 4 is
The electrostatic latent image remaining on the magnetic layer 2 is erased by the light irradiated by the erasing lamp 5.
The magnetic latent image remaining on the image is erased by the magnetic erasing head 6.

Further, toner adhering to the surface of the recording drum 4 is removed by a cleaner 7.

When the recording drum 4 reaches the write magnetic head 8, magnetic recording is performed and a magnetic latent image is created on the magnetic layer 2, which rotates further to the left and reaches the magnetic recording developer 9 where it is developed. will be held.

The magnetic latent image causes magnetic toner to adhere to the surface of the recording drum 4, and the first development is completed.

The recording drum 4 further rotates to the left, and the photoconductor layer 3 is charged by the discharge of the corona discharger 11. Then, in the copy exposure device 12, unnecessary charges are erased by the irradiated light beam. , an electrostatic latent image corresponding to the optical image is obtained.

In the developer 16, the photoconductor layer 3 is developed, and the electrostatic latent image causes toner to adhere to the surface of the recording drum 4, completing the second development.

In the transfer corona discharger 19, both the magnetic toner and the toner adhering to the surface of the recording drum 4 are transferred onto the copy paper 18, and fixed in the fixing section 21.

Conventionally, when performing two different recordings on one recording medium, a series of processes of development, fixation, development, and fixation were required, but in the present invention, as described above, only one process of development and fixation is required. has advantages.

A second advantage is that unless the magnetic latent image obtained on the magnetic layer 2 is demagnetized, development can be repeated many times without performing magnetic recording.

Thirdly, both magnetic toner and toner,
Using materials colored with different colors has the advantage that two-color development can be performed in a single processing step.

[Brief explanation of drawings]

FIG. 1 is a sectional view illustrating the configuration of a recording medium according to the present invention, and FIG. 2 is a schematic configuration diagram illustrating an embodiment of the present invention. Reference symbols used in the figures are as follows. DESCRIPTION OF SYMBOLS 1... Substrate, 2... Magnetic layer, 3... Photoconductor layer, 4... Recording drum, 5... Erasing lamp, 6...
...Magnetic erasing head, 7...Cleaner, 8...Magnetic head for writing, 9...Developer for magnetic recording, 10
. . . Magnetic toner attached to drum, 11 . . . Corona discharger, 12 . . . Exposure device for copying, 13 .
...Developer, 17...Toner attached to drum, 1
8... Copy paper, 19... Corona discharger for transcription,
20...Transferred toner, 21...Fixing section, 2
2... Fixing roller.

Claims (1)

[Claims] 1 Using a two-layer recording medium consisting of a magnetic layer provided on a conductive substrate and a photoconductor layer provided on the magnetic layer, a magnetic latent image is formed on the magnetic layer. , an electrostatic latent image different from the magnetic latent image is formed on the photoconductor layer, a magnetic toner is adhered to the upper surface of the photoconductor layer corresponding to the magnetic latent image, and the electrostatic latent image is formed on the photoconductor layer. An electrostatic toner is attached in correspondence with the latent image, and the electrostatic toner formed on the photoconductor layer and the magnetic toner formed on the magnetic layer are simultaneously transferred onto one recording sheet. Magnetoelectrostatic recording method.