JPH05142968A - Toner display device - Google Patents

Abstract

PURPOSE:To read and display the various kinds of images with simple constitution without connecting the other devices. CONSTITUTION:A scanner 17, a transfer sheet for displaying an image 10, a recording and developing device 13 and a main body frame are provided. The scanner 17 is set for reading an image plotted on a supplied original. The recording an developing device 13 is set for forming the toner image corresponding to the image read by the scanner 17 on the sheet 10. Then, the scanner 17, the sheet 10 and the recording and developing device 13 are housed in the main body frame.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device, and more particularly to a toner display device for forming a toner image on a transfer sheet for displaying an image.

[0002]

2. Description of the Related Art A toner display device is known in which an endless transfer sheet for display is bridged between a pair of upper and lower rollers, and a toner image is formed on the transfer sheet for display (Japanese Patent Application Laid-Open No. 63-192076). No. This toner display device is connected to an image creating device such as a personal computer online to display the image data created by the personal computer as it is. Also,
When it is desired to display a handwritten manuscript, a manuscript already printed, or the like, a scanner is connected, the manuscript is read by the scanner, and image data of the read manuscript is output to a toner display device and displayed as it is.

[0003]

SUMMARY OF THE INVENTION In the above conventional configuration,
When displaying image data, the personal computer must be connected to the toner display device, which complicates the device configuration. In addition, a scanner must be connected to display a handwritten original or an already printed original, which also complicates the device configuration.

An object of the present invention is to read and display various images with a simple structure without connecting any other device.

[0005]

A toner display device according to the present invention comprises an image reading means, a transfer sheet for image display, an image forming means, and a case. The image reading means is for reading the image drawn on the supplied document. The image forming means is for forming a toner image on the transfer sheet according to the image read by the image reading means. The case houses the image reading unit, the transfer sheet, and the image forming unit.

[0006]

In the toner display device according to the present invention, when a document is supplied, the image drawn on the document is read by the image reading means, and a toner image corresponding to the image read by the image forming means is transferred onto the transfer sheet. Formed and displayed on. Since the image reading means, the transfer sheet, and the image forming means are housed in the case, it is possible to read and display various images with a simple configuration without connecting other devices.

[0007]

FIG. 1 shows a toner display device according to an embodiment of the present invention. Toner display device 1
Includes a base 2 with free wheels, and a body frame 3 mounted on the base 2. Body frame 3
In the lower front part of the disk, a disk device 4 for reading and writing data in the flexible disk 4a and an IC card 7
a card slot 7 for inserting a, a keyboard 5 on which various keys including a print button for instructing the start of display operation are arranged, and a liquid crystal display for displaying the contents of the flexible disk 4a and the contents of the IC card 7a And a unit (LCD) 6 are arranged. Similarly, a document supply port 17a for supplying a document to the scanner 17 and a document discharge port 17b for discharging the supplied document are vertically arranged on the lower front side. The lengths of the document supply port 17a and the document discharge port 17b are such that an A4 size document can be inserted in the lateral direction.

A rectangular window 8 for display is formed on the front surface of the main body frame 3. A glass plate 9 is fitted inside the window 8 as shown in FIG. A white transfer sheet 10 is arranged so as to face the glass plate 9. The transfer sheet 10 includes a pair of rollers 11 and 12 arranged vertically.
It is in the shape of an endless belt that is stretched over. The roller 11 is rotationally driven in the direction of the arrow by the sheet drive motor 29 (FIG. 4), and the transfer sheet 10 moves up on the window 8 side and moves down on the opposite side. Toner is attached to the transfer sheet 10 by applying a voltage to induce opposite charges on the surface.

A recording / developing device 13 is disposed below the lower roller 12. As shown in FIG. 3, the recording / developing device 13 includes a fixed non-magnetic cylindrical sleeve 14, a recording electrode 15 arranged on the cylindrical sleeve 14, and a rotary magnet rotatably arranged inside the cylindrical sleeve 14. 16
And a toner receiving portion 13a for receiving toner.

The rotating magnet 16 has a shape in which S poles and N poles are alternately arranged, and is rotated clockwise by a magnet drive motor 28 (FIG. 4) to rotate the toner on the cylindrical sleeve 14. To transport. The recording electrode 15 has a structure in which a large number of electrode elements to which a predetermined recording signal is applied are arranged side by side in the axial direction of the cylindrical sleeve 14. Transfer sheet 10
Causes an opposite electric charge in response to a signal voltage applied to each electrode element of the recording electrode 15 and toner adheres to form an image. Here, a toner image is formed by a process in which the toner adheres to the transfer sheet 10 when a signal of a predetermined voltage is applied to each electrode element of the recording electrode 15 and does not adhere when the signal is not applied.

The scanner 17 includes a contact type image sensor 30 for reading an image of a document supplied to the document supply port 17a, and a plurality of conveyers for feeding the supplied document from the contact type image sensor to the document discharge port 17b. The transport mechanism 31 includes transport rollers and the like. A sensor 32 for detecting the insertion of a document is arranged inside the document supply port 17a.

The toner display device 1 has a CPU 21 shown in FIG. A ROM 22, a screen memory 23, an I / O interface 25, an electrode driver 26 for driving the recording electrodes 15, and a motor driver 27 for driving motors 28, 29 are connected to the CPU 21 via a system bus 20, respectively. ing. ROM
A program for controlling the toner display device 1 is stored in 22. Image data formed on the surface of the transfer sheet 10 is stored in the screen memory 23 in a bitmap format.

The I / O interface 25 includes a disk device 4, a keyboard 5, an LCD 6 and a card slot 7.
And the scanner 17 is connected. Electrode driver 26
A recording electrode 15 is connected to the recording electrode 15 and a drive voltage corresponding to the image data stored in the screen memory 23 is applied to the recording electrode 15.
Output to. The motor driver 27 includes motors 28 and 29.
Are connected to each other and give signals for driving the rotating magnet 16 and the roller 11 to the respective motors 28 and 29.

Next, the control operation of the CPU 21 will be described. As shown in FIG. 5, first, in step S1, initial setting of each unit such as clearing the contents of the screen memory 23 is performed. In step S2, it is determined whether or not the scanning of the document by the scanner 17 is started depending on whether or not the sensor 32 in the document insertion opening 17a detects the document. When it is determined that the sensor 32 is not turned on in step S2, step S
Move to 3. In step S3, the flexible disk 4a or the IC card 7 is operated by operating the keyboard 5.
It is determined whether or not the input of the data within is instructed. If it is determined in step S3 that they have not been designated, the process proceeds to step S4. In step S4, the keyboard 5
It is determined whether or not the display is instructed by operating the print button inside. When it is determined that the display is not commanded, the process returns to step S2.

When it is determined that the scanning by the scanner 17 is started, the process proceeds from step S2 to step S5. In step S5, the transport mechanism 31 starts transporting the document supplied to the document supply port 17a. In step S6, the image of the original is read by the contact image sensor 30, the read image is A / D converted, and written in the screen memory 23. When the reading of the document is completed, the conveying operation is ended in step S7, and the process proceeds to step S3.

When the keyboard 5 is instructed to input data from the flexible disk 4a or the IC card 7a, the process proceeds from step S3 to step S8. In step S8, a file of image data in the flexible disk 4a or the IC card 7a mounted in the disk device 4 or the card slot 7 is selected.
Then, in step S9, the data of the selected file is read, and the read image data is sequentially written in the screen memory 23. When the operation in step S9 ends, the process proceeds to step S4.

When it is determined that the display command is issued, the process proceeds from step S4 to step S10. Step S10
Then, the motors 28 and 29 are driven, the rotary magnet 16 is rotated, and the transfer sheet 10 is moved. Step S1
In 1, the screen data recorded in the screen memory 23 is read line by line, and the recording electrode 15 is driven with a voltage according to the screen data. In step S12, the transfer sheet 10 waits until it reaches the stop position. When the transfer sheet 10 reaches the stop position, the process proceeds to step S13, and the motors 28 and 29 are stopped. When the processing in step S13 ends, the process returns to step S2.

As described above, in this embodiment, the document supply port 1
The image of the document supplied to 7a can be read and displayed. Therefore, images of various originals such as handwritten originals and printed originals can be displayed without connecting an external device such as a personal computer. Other Embodiments (a) In the above embodiments, the image is read by moving the document, but the document may be read by moving the image sensor while the document is stationary. (B) The disk device and the card slot provided in the above embodiment may be omitted.

[0019]

In the toner display device according to the present invention, since the image reading means for reading the supplied original document is housed in the case together with the transfer sheet and the image forming means, the images of various original documents can be obtained by other devices. It can be displayed with a simple configuration without connecting.

[Brief description of drawings]

FIG. 1 is a perspective view of a toner display device according to an exemplary embodiment of the present invention.

FIG. 2 is a partial vertical sectional view thereof.

FIG. 3 is an enlarged partial view of FIG.

FIG. 4 is a block diagram of a control system.

FIG. 5 is a control flowchart of the CPU.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Toner display device 3 Main body frame 10 Transfer sheet 11, 12 Roller 13 Recording and developing device 17 Scanner

Claims (1)

[Claims] 1. An image reading unit for reading an image drawn on a supplied document, a transfer sheet for image display, and a toner image corresponding to the image read by the image reading unit on the transfer sheet. A toner display device comprising: an image forming unit for forming; a case for accommodating the image reading unit, the transfer sheet, and the image forming unit.