JPS61130941A - Copying device - Google Patents

Abstract

PURPOSE:To display an easily observable image by executing a control so that an erect image and an inverted image are displayed on the front, when a contact glass is in a vertical position, and its surface, when said glass is in a horizontal direction, respectively, with regard to an image displayed on a liquid crystal display. CONSTITUTION:In case a liquid crystal display 1 has been set to a horizontal position in order to print an image signal from an external device 20, an image displayed on the liquid crystal display 1 by an external signal is controlled so as to become an inverted image by seeing it from above. Accordingly, it becomes an erect image, when it is seen from the lower side, and when it is illuminated by an exposing lamp, made to form an image on a photosensitive body by executing an exposure scan, transferred and a print is made, an image on the print becomes an erect image. On the other hand, in case copying is executed from an original, when the liquid crystal display 1 is set to a non- operation, the liquid crystal display has a light transmission property being uniform on the whole surface, therefore, it can be used as a contact glass, and a copy can be made in the same way as an ordinary copying machine.

Description

[Detailed Description of the Invention] Technical Field The present invention is a simple glass-toothed liquid crystal display,
The present invention relates to a multifunctional copying device that has the functions of displaying images on a liquid crystal display in response to external signals, printing displayed images, and copying general originals.

Prior Art If a single machine can display an image corresponding to an image signal input from an external device such as a word processor or personal combinator, print that image, and copy a handwritten original, the effectiveness of the machine will increase. It is economical to increase the size and is also advantageous in terms of space.

In response to this request, the present inventors, as shown in FIG.
By using the contact glass 1 of an ordinary electrophotographic copying machine as a liquid crystal display, it is possible to display images in response to external signals, and by covering the top surface with a pressure plate 12, images on the liquid crystal display can be displayed using a liquid crystal display. System 4
Exposure scans and exposes the body drum 3 to form a latent image?
By making it possible to form and make copies by ordinary electrophotographic processes, and further by allowing light to pass through uniformly when the liquid crystal display 1 is in an inactive state,
This can be used as regular contact glass to create handwritten originals.
We have proposed a multifunctional copying device that can make regular copies of documents, etc.

In addition, in FIG. 5, 2 is a charger, 5 is a developing device, and 6 is a charger.
is a paper feed section, 7 is a transfer charger, 8 is a separation charger,
9 is a fixing device, 10 is a cleaning device, and 11 is a static eliminator. The operation of these devices is similar to that of ordinary copying machines. As shown in Fig. 6, the liquid crystal deep J-1, which also serves as contact glass, has nine liquid crystal cells arranged regularly on a bright glass plate 15 among the two sheets;
It is constructed with a half mirror) and is a reflective liquid crystal display.

At the same time, when not driven, the contact glass has uniform light transmittance.

Now, if the liquid crystal display is fixed horizontally to the top plate of the copying machine, like the front glass of a normal copying machine, the operator of a word processor or /<-sonal computer will normally be able to operate it while sitting on a chair. Above, it is inconvenient to view images displayed on the LCD display. To make this easier to see, the contact glass should be held upright when used as a display, and the image should be printed or copied in the horizontal position where the contact glass should be. Bye.

Purpose: As described above, the present invention provides a copying machine in which a contact glass serving as a liquid crystal display 2 is movable between a horizontal position and an approximately upright position, which is convenient for observing images on the display, and correct images 3 and 3 errors. The purpose of the present invention is to provide a virtual image copying device that can perform navigation printing.

Structure In order to achieve the above object, the present invention makes the pivot axis of the contact glass the front edge of the contact glass, and the image displayed on the liquid crystal display is displayed when the contact glass is in an upright position. When the front glass is in the horizontal position, a normal image is displayed on the front surface, and when the front glass is in the horizontal position, the reverse image is displayed on that surface.

With this configuration, the image plane is placed at a suitable position in front of the operator's face during display, making it easier to observe the image displayed on the liquid crystal display. Furthermore, when a print is made by copying an image displayed on a liquid crystal display using an external signal, the image on the print can be made into a normal image.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to drawings showing embodiments thereof.

FIG. 1 is a diagram showing an embodiment of the present invention. This device!
A contact glass 1, which also serves as a liquid crystal display in the vI copying device explained in FIG. location and,
The configuration is the same as that shown in FIG. 5, except that it is movable between the upright position and the upright position shown by the chain line in the figure, and can be held in those positions. Therefore, members having the same function are given the same reference numerals. An external device 20 is connected to this copying device via a power line 1s18, and 1! The image signal is input to a liquid crystal display drive device (not shown) built into the copying machine via 1518, and an image corresponding to the image signal is displayed on the liquid crystal display 1. Figure 2 shows the LCD display being held in an upright position and being used as a display. and the image displayed on top of this (HrAB in the example shown)
cJ) l”t11! Displayed as a normal image when looking at the camera from the front 0 The first image signal from the external device 20 is
As shown in the figure, when the liquid crystal display 1 is placed in a horizontal position, the image displayed on the liquid crystal display 1 is controlled by an external signal to be a reverse image when viewed from above. Therefore, when viewed from below, it becomes a normal image, and when it is illuminated with an fM light lamp and exposed and scanned to form an image on the photoreceptor and then transferred to produce a print, the image on the print becomes a normal image.

When copying from an original, if the liquid crystal display 1 is deactivated, the entire surface of the liquid crystal display becomes uniformly transmissive, so it can be used as a contact glass, and copies can be made in the same way as with an ordinary M copying machine. be able to.

FIG. 3 is a flowchart of image display from an external signal, print production from the displayed image, and original copying by this apparatus. If you start by turning on the switch and selecting image display control using the selection switch, a normal image will be displayed on the liquid crystal display l. When print control is selected, the image display on the liquid crystal display is converted from left to right and then copy control is started by the copying device. Normal manuscript 11! In the case of copying, since the display control and print control is HNO, the copy control starts immediately.

FIG. 4 is a control block diagram of this device. When one of the display display signal, display image print switching signal, and original copy/print switching signal is selected and started by the selection switch, a synchronization signal is transmitted. In the case of display signals, the image is a normal image.

A liquid crystal display (LCD) drive control is performed so that a normal image is displayed on the liquid crystal display.

In the case of a print switching signal for a display image, conversion control is performed to reverse the image left and right, and liquid crystal display drive control is performed using a synchronization signal so that at least the image scanning area by the light source of the document scanner is displayed.

In the case of the original copy switching signal, original scanning control is performed at a predetermined timing.

Effects As described above, according to the present invention, it is convenient for observing images displayed on a display in a copying machine that can display images using external signals, print, and copy T from originals in one device. , Matapudding) IG, :,, 1iiEl*
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[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a perspective view showing the display state, FIG. 3 is a 70-chart during image display, printing and original copying by this device, The figure is a control block diagram, FIG. 5 is a sectional view showing a device separately proposed by the present inventors, and FIG. 6 is a partial cross-sectional view of the liquid crystal display. 1... Contact glass and liquid crystal display 3...
Photoreceptor 4... Exposure system 12... Pressure plate
20...External device 1- Medium Φ1 Fig. 1 Fig. 2

Claims (1)

[Claims] The contact glass is a liquid crystal display that can be driven by an external signal to display an image corresponding to the signal, and when not driven, it transmits light uniformly.One edge of the contact glass is used as a pivot axis, and the display can be positioned horizontally or roughly upright. In a copying apparatus, the contact glass is movable between the two positions, and the contact glass is capable of displaying an image in the generally upright position, and is capable of printing the image displayed in the horizontal position and copying the original. The axis of attachment is the front edge of the contact glass, and the image displayed on the liquid crystal display is a normal image in front when the contact glass is in an approximately upright position, and a normal image is displayed in front when the contact glass is in a horizontal position. A copying apparatus characterized in that it is controlled to sometimes display a reverse image on the same side.