JPS6140638A - Picture recording system - Google Patents

Abstract

PURPOSE:To record pictures with high quality by scrolling and displaying pictures and focusing the image of a part of them onto a photosensitive body by an optical means to form an electrostatic latent image and running and driving the photosensitive body at the same speed as the scrolling speed. CONSTITUTION:The signal indicating a picture to be displayed on a CRT3 is given from a host computer 25 to a processing circuit 26. This picture signal corresponding to one picture is stored in a memory 27 and is read out by the processing circuit 26 and is displayed on the CRT3 by a video output circuit 28. When the picture displayed on the CRT3 is recorded by an electrostatic recording means 5, the processing circuit 26 not only reads out stored contents of the memory 27 but also rotates and runs the photosensitive body provided in the electrostatic recording means 5 to record the picture. If the picture on the display surface of the CRT3 is recorded with unmagnification, the photosensitive body is rotated and run in the same speed as the scrolling speed of the picture on the display surface.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an image recording method for recording an image displayed by a cathode ray tube or the like onto recording paper or the like.

BACKGROUND ART When the calculation results of a computer or the like are displayed on a cathode ray tube, conventionally the displayed image is photographed using a camera in order to record and save the displayed image.

Therefore, the operation is troublesome, and the quality of the photograph taken varies depending on how the camera is operated.

Other prior art techniques process image signals to be displayed on a cathode ray tube through an interface and provide the output from the interface to a printer for recording.

A new problem with such prior art is that the configuration of the interface becomes complex.

Problems to be Solved by the Invention An object of the present invention is to provide an improved image recording method with improved recording quality and a simplified configuration.

Means for Solving the Problems The present invention scrolls and displays an image using an image display means, and images a portion of the image extending perpendicularly to the scrolling direction on a photoreceptor using an optical means. This is an image recording method in which an electrostatic latent image is formed, and the photoreceptor is moved at a speed δ different from the scrolling speed of the image display means.

According to the present invention, the FM image scrolled by the image display means is imaged onto the photoreceptor by the optical means, an electrostatic latent image is formed, and the photoreceptor is adjusted to the scrolling speed. Since the apparatus is configured to travel and move at a certain speed, recording of excellent quality can be performed and the construction is relatively simple.

Example FIG. 1 is a sectional view of one embodiment of the present invention.

A cathode ray tube 3 having a display surface 2 facing forward (to the left in FIG. 1) is housed in the black lens 1.

The upper image of the display image 2 of this cathode ray tube 3 is
9 to the electrostatic recording means 5.

The upper part of this display image 2: (The displayed image is
is guided through reflecting mirrors 6 and 7, a focusing lens 8, and a reflecting mirror 9, and is imaged onto a right cylindrical photoreceptor 10 of the electrostatic recording means 5.

Figure @2 is a front view of the display surface 2 of the cathode ray tube 3. The display area provided to the electrostatic recording means 5 by the optical means 4 extends over the entire width w1 of the display surface 2, as indicated by reference numeral 11 in FIG. 2(1). The display area of the display surface 2 provided by this optical means 4 to the electrostatic recording means 5 is also
As shown by reference numeral 12 in FIG. 2 (2), it may be an area having a width W2 smaller than the total length W1 in the width direction of the display image 2. Width WI
K across or also the width W2 shown in FIG. 2(2)
The image is displayed over a period of time.

In the electrostatic recording means 5, the photoreceptor ]0 is moved downward in the rotational running direction ]3 for electrostatic recording. The photoreceptor 10 is charged by the main corona discharger 14, and then an electrostatic latent image is formed by the optical means 4 in the cystoptic region 151c. This electrostatic latent image is developed into a toner image in a magnetic brush developing device 16.

This toner image is transferred onto a recording paper 20 that is conveyed along a conveyance path 19 in a transfer region 18 provided with a transfer corona discharger 7. The recording paper 20 is fed to the paper feed roller 2
1, one sheet is supplied to the shear conveyance path 19. transcription i
The recording paper 20 to which the toner image was transferred in #41B is
The recording paper 20 is guided from the transport path 22 to the fixing device 23 and fixed thereon.
It is discharged into a storage space 24 provided in the front part of.

FIG. 3 is a block diagram showing the electrical configuration of the embodiment shown in FIG. 1. A signal representing the image to be displayed on the cathode @ tube 3 is given from the host computer 25 to a processing circuit 26 realized by a microcomputer or the like, and this image signal for one screen is stored in the memory 27. Stored. Is the stored content of 7Mori 27 FI for processing? ! I
2d and displayed on the cathode ray tube 3 by the video output circuit 28. By the electrostatic recording means 5, the negative tif
In recording the display image of the wire tube 3, the processing circuit 2
6 reads out the stored contents of the memory 27, and at the same time causes the photoreceptor 0 provided in the electrostatic recording means 5 to rotate □.

FIG. 4 is a map showing the contents stored in the memory 27. Addresses corresponding to the respective horizontal scanning lines along the horizontal direction in FIG. 2 in the display image 2 of the negative @ray tube 3 are indicated by reference characters e1. e2. ....

ei, ..., en, and each address is the second
It has a storage capacity of, for example, 640 dots over the widths Wl and W2 of the display areas 11 and 12 in the figure.

The shadow t? by the electrostatic recording means 5? When recording the display screen 2 of the i-ray tube 3, after displaying the stored contents at the address e1 of the memory 27 at the top of the display screen 2, the next address entry is displayed at the top of the display screen 2. 12 store contents are displayed, and in the same manner, the display contents by the scanning line at the top of the display screen are sequentially changed to the contents of the store area whose addresses e1 to fn of the memory 27 are shifted by one. Display surface 2
The contents of the addresses e1 to en that have disappeared from the top of the display screen 2 are sequentially displayed upward from the bottom of the display screen 2. In this way, images are scrolled and circulated on the display screen 2 in the scrolling direction indicated by the arrow 30 in FIG. 5. In the area indicated by the reference mark 3'1 in Figure 5, the store contents of addresses li~en in the memory 27 are displayed, and the remaining display area 32 displays the store contents e]~e.
;-1 store contents are displayed. In this way the second
(tl) and the display area 11. shown in FIG.
As the contents displayed in 12 are sequentially changed and scrolled, an electrostatic latent image is formed on the photoreceptor 10 in the exposure area 15 of the electrostatic recording means 5.◎Processing circuit 2
6 shows the photoreceptor 10 of the electrostatic recording means 5 at VC2 during recording in 7.
The image on the display surface 2 of the negative #l-ray tube 3 is recorded at the same magnification. do.

In this way, the photoreceptor 10 is moved downward in the rotation direction 13 during the 1 i minute period extending perpendicularly to the scroll direction 30 (see FIG. 5) displayed in the display area 11.12 of the display surface 2. Electrostatic recording is performed by

When reducing or enlarging the image on the display surface 2 to form an image on the photoreceptor 10, the photoreceptor 10 rotates in the rotation direction 13K at an appropriate speed corresponding to the scrolling speed on the display surface 2.
[Moved.

In the above-described embodiment, when the display surface 2 of the cathode ray tube 3 is electrostatically clear, the images that have been scrolled and disappeared are sequentially displayed in the area 32 (see FIG. 85) below the screen. However, as an embodiment of the dL of the present invention, the image that disappears due to scrolling may be configured so that it is not displayed on the display surface 2.

When the cathode ray tube 3 is a 14-frame type that can perform a color 7 display, the electrostatic recording means 5 may be an R-type that can perform a color display. Instead of the cathode @13, an image display means using a liquid crystal or the like for displaying an image may be used. Although the optical means 4 had a structure using reflection mirrors 6, 7.9 and a focusing lens 8 in the above-mentioned embodiment, as an embodiment of the present invention, an optical means 4 is provided in the display area 11.12 of the display surface 2. Scroll direction of 6 displayed images 3
0 to the electrostatic recording means 5 by means of an optical fiber.According to the invention, as described above, the image is scrolled by the image display means. a portion of the [!lii image extending perpendicularly to the scrolling direction] is imaged onto a photoreceptor by optical means to form an electrostatic latent image, and the photoreceptor corresponds to the scrolling speed of the image display means. Since the apparatus is configured to travel and move at a speed of 1, it is possible to record images displayed by the image display means with high quality, and the configuration is simplified.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of one embodiment of the present invention, FIG. 2 is a front view of the display surface 2 of the cathode S tube 3, and FIG. 3 is a cross-sectional view of the embodiment shown in FIG. FIG. 4 is a map showing the contents of the memory 27, and FIG. 5 is a front view showing the scrolling operation of the display surface 2. 3... Cathode 89.4... Optical means, 5... Electrostatic recording means, 6, 7.9... Reflecting mirror, 8... Focusing lens, ]0... g light body, 20... Recording paper, 25... Host computer, 26... Processing circuit, 27... Memory, 28... Video output circuit, 30... Scroll direction 19+1') (:, i

Claims (1)

[Scope of Claims] An image is scrolled and displayed by an image display means, and a part of the image extending perpendicularly to the scrolling direction is imaged on a photoreceptor by an optical means to form an electrostatic latent image. An image recording method characterized in that the photoreceptor is moved down at a speed corresponding to the scrolling speed of the image display means.