JPS5938787B2 - facsimile receiving device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrostatic recording head that applies an electrostatic latent image corresponding to a facsimile image signal to a recording medium, and an electrostatic latent image applied to a recording medium by the electrostatic recording head. The present invention relates to a facsimile receiving device equipped with a recording device that visualizes an image.

In conventional devices of this type, when a normal received and recorded image cannot be obtained, it is difficult to know what the cause is, and the cause may simply be a lack of developing toner or a failure of the recording drive circuit.

Further, when continuous reception is performed, it is desirable that the order of reception, date and time, etc., be recorded at the edge of the reception recording image within the facsimile receiving device. The present invention solves these problems, and is capable of knowing the remaining amount of toner and informing whether or not the cause is a lack of toner when a normal received image cannot be obtained. It is an object of the present invention to provide a facsimile receiving apparatus which can know the order of reception, date and time of reception, etc.

The present invention will be explained below based on the drawings.

FIG. 1 is a schematic diagram of a facsimile receiving apparatus according to an embodiment of the present invention. In the figure, numeral 1 is a recording paper wound into a roll, the leading end of which is attached to feed rollers 2a and 2.
Sub-scanning is carried out by a', 2b, and 2b'. 3
has a multi-stylus electrostatic recording head, and the recording paper 1 fed by feed rollers 2a and 2a' is electrostatically charged by a recording voltage corresponding to a facsimile image signal applied through a recording signal distribution circuit (not shown). form an image.

Next, the toner is developed by a developing device consisting of a hopper 4, toner 5, a cylindrical sleeve 6, and a magnet roller □ in which magnetic poles are arranged in opposite directions, and fixed by a fixing heater 8. 9a is a rotary blade, and 9b is a fixed blade, which constitutes a cutter and cuts the recording paper that has been developed and fixed by the feed rollers 2b and 2b' into a predetermined size.

A microswitch 10 is controlled by the rotation of the cutter rotation 9a, and the output of the microswitch 10 controls the output of the control circuit 11. When the output signal of the microswitch 10 is applied, the control circuit 11 activates the pattern generator 1 at regular intervals for a certain period of time.
2, a control signal is generated to generate a reception mark signal. The pattern generator 12 generates a reception mark signal of a reception mark including reception date and time, reception order, etc. The pattern signal from the pattern generator 12 is controlled by a recording signal distribution circuit so as to be recorded toward the edge of the recording paper 1. With the above configuration, when performing normal facsimile reception, reception marks are recorded simultaneously with recording of facsimile images.

Here, the structure of the magnet roller 7 will be explained with reference to FIG.

FIG. 2 is a plan view of the magnet roller 7, and the magnetic pole distribution is shown by a dashed line. That is, the pattern generator 12
The magnetic poles of the magnet roller 7 in the portion corresponding to the end portion of the recording paper 1 to which the reception mark signal is applied are arranged so as to be curved convexly in the rotational direction a of this roller 7, and the reception mark signal in this portion is This is the mark development part. The magnetic poles of the magnet roller 7 other than the pattern developing portion are arranged parallel to the rotational direction a of the roller 7. Therefore, when the magnet roller 7 is rotated in the direction a, the toner 5 is transferred to the facsimile image developing area on the sleeve 6.
As shown by arrow b, it is transported in a direction that crosses the magnetic pole distribution at right angles. However, in the area where the reception mark is developed, a magnetic field is generated in the direction in which the toner 5 connects the sleeve b with the shortest distance from one pole to the other as shown by the arrow b/. A force is applied to transport the paper toward the image development area. For this reason, while the toner 5 is in the hopper 14, the toner is conveyed to the entire surface of the sleeve, but when the toner runs out in the hopper 14, the toner in the area where the reception mark is developed on the sleeve 6 gradually transfers to the facsimile image. It moves toward the developing area. Therefore, when the toner 5 in the hopper 14 approaches its end,
The shortage of toner 5 conveyed on the sleeve 6 first occurs in the reception mark developing portion of the magnet roller 7.

Therefore, by monitoring the development density of the reception mark portion of the reception recording image 1' as shown in FIG. 3, it is possible to check the state of toner depletion before it affects facsimile image recording. As described above, the present invention includes a recording medium, an electrostatic recording head that applies an electrostatic latent image corresponding to a facsimile image signal to the recording medium, and a date and time of reception that is passed through the electrostatic recording head to an end of the recording medium. , a pattern generator for applying an electrostatic latent image corresponding to the reception mark such as the reception order, and a force that acts to cause the toner at the position where the reception mark portion of the recording medium is to be developed to migrate to the facsimile image development portion. Since it is equipped with at least a developing device such as the above, it is possible to know the state of toner depletion just by looking at the recorded images, and even if the recorded images are stored separately in a stacker, they can be arranged in the order in which they were received. can.

Further, if only the recording of the reception mark part of the recorded image is normal and there is an abnormality in the facsimile image recording part, it can be checked that at least the cause is other than the lack of toner.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of an embodiment of a facsimile receiving apparatus according to the present invention, FIG. 2 is a plan view of the magnet roller of FIG. 1, and FIG. 3 is a plan view showing a received recording image. 1...Roll recording paper, 1t...Received recorded image, 5...Toner, 6...Cylindrical sleeve, 7...Magnet Laura, 9a...
...Rotating blade, 9b...Fixed blade, 10...
・Micro switch, 11... Control circuit, 12
. . . Pattern generator, 3 . . . Electrostatic recording head.

Claims (1)

[Claims] 1. An electrostatic recording head that applies an electrostatic latent image corresponding to the facsimile image signal to the recording medium, and an electrostatic latent image that is passed through the electrostatic recording head to the edge of the recording medium in accordance with reception marks such as reception date and time, reception order, etc. a pattern generator for applying an image;
A facsimile receiving device includes a developing device that exerts a force that causes toner existing at a position where a reception mark on a recording medium is developed to be transferred to a facsimile image developing section.