JPS6041032A - Image forming device - Google Patents

Abstract

PURPOSE:To improve the operativity of image formation by providing a control means which converts and controls image information according to whether the image formation is performed or not on the basis of the image information. CONSTITUTION:A liquid-crystal panel display device 3 of, for example, A3 size incorporates RAM, and re-stores data transferred from internal RAM20 stored with binary video data 15 transferred externally and reads then periodically to drive respective cells of liquid crystal, displaying a still image. A 20-bit address counter 21, on the other hand, controls writing to a video memory 20 and reading to liquid-crystal RAM3. Output signals consisting of low-order 10 digit bits 9 and high-order 10 digit bits 10 are inputted to multiplexers 11 and 22 respectively and selected with a switching signal 13 to address the video memory. The output 9 of the multiplexer 22 is inputted to an adder 23, and the video memory 20 is addressed (X coordinate) after a specific value is added. Further, an Y coordinate of the video memory 20 is addressed on the basis of the output 12 of the multiplexer 11. Consequently, a display (a) of A3 size is displayed by being converted into a display (e) of A4 size.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention applies an image display to an image forming apparatus (1+j L/).

Prior Art Recently, in relation to image processing devices, not only general manuscripts but also
2. Description of the Related Art An apparatus has been proposed that can make a hard copy of an image displayed on a display device or the like, for example, the output of a computer or the like, in the same way as a general manuscript. However, in the case of display panel copying, in other words, a reflective liquid crystal panel arranged in high density is placed on the original holding plate of the copying machine.
When the cover is open, the liquid crystal panel operates as an information display medium and can be used as a form of information transmission by connecting to a fax machine or office phone, or as an output terminal for a word processor, etc. from outside the company. If necessary, if the information is to be left as a hard copy, the cover is folded down and the display is illuminated and scanned as in the case of making a normal copy, but it is not possible to operate it as a normal copying machine before. Therefore, from the operator's point of view, the document table is generally configured such that A6 size originals are arranged horizontally in order to make it possible to copy up to A3 size originals.

Therefore, the information that is sent is displayed on a surface display shaped like an A6 size persimmon. However, the format of the t111 report generally varies depending on the content of the information. For example, A6 information is 'If the item is white-written, it has the disadvantage that the operator cannot easily read it even if it is displayed as is. In addition, if the display format of the A3 size information 11 is converted to be horizontal and vertical to make it easier to read, there is an inconvenience that if the display is folded down and copied, the A6 information cannot be reproduced on one sheet of A6 transfer material. There was a downside to coming.

Purpose In view of the above points, the purpose of the present invention is to provide an image display device (i.e.
+ir L/An object of the present invention is to provide an image forming apparatus having a means for converting image information displayed on the display device.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1st
The figure shows an example of an image forming apparatus equipped with a planar display to which the present invention can be applied. 1 is the main body of the apparatus 1, and 2 is a cover for bringing the document into close contact with the document table.

Reference numeral 6 denotes a planar (linear) display that can be used as an output terminal for a computer, a FAX, or an office computer. 5
Reference numeral 6 indicates a cable or cableless connection section with an external device such as the FAX, and 6 an operation section. Vertical conversion, respectively.
There is a set of keys and/or a display section for creating editing modes such as Yokohi conversion, scaling, etc.

FIG. 2 is a diagram showing how various information is displayed on the A6 panel display. (a) The Deke I11 report is difficult to read, so the information coordinates X'-Y are changed and displayed as shown in (b), and then the whole area is displayed by shifting in the X i11 direction as shown in (Q). It is necessary to do so. However b)
, In state (C), is it possible to reproduce a reproduced image on one sheet of transfer material? !
) is impossible. It will be converted to the state shown in (a) and copied. Also, although A4 information is displayed in (d), it is easier to obtain a/k if it is converted and displayed in (e). However, if you take a bird dog, even (d) is (0
) is fine, and if the transfer material feed direction is horizontal (A4 cassette), select (e), and vice versa, if the transfer material is fed vertically (A4 'It cassette), select (d). .

Similarly, A4 information is displayed as shown in (g).
:6 If the feeding direction of the transfer material is horizontal feeding, hard copying can be performed by changing to (f). As explained above, the coordinates of the information sent must be converted according to the content and the selected (or loaded) cassette unless there is some instruction.

Note that, in addition to the above conversion, a -magnification function may be added. Further, the coordinate conversion, scaling, etc. may be performed by the key means of the exploration section 6 shown in FIG. 1, or may be performed in conjunction with the blood manuscript cover 2.

FIG. 6 shows a control block diagram of the planar display 6. 6
has a built-in liquid crystal spring T, W~1 corresponding to the above-mentioned A6 size, and stores the data transferred from the RAM 20 of the same capacity which stores the binary video data 15 transferred from the outside and periodically reads out the data. This drives each cell of the liquid crystal to display a still image.

On the other hand, the 20-bit address counter 21 is connected to the screen memory 20.
↑") is an address counter that controls reading to the liquid crystal RAfQI 3, and the lower 10b respectively.
The output signals of 1t; (9) upper 10 bits←0) are input to multiplexers 11 and 22, and one of them is selected by the switching signal 16 to address the screen memory. Here, the output 9 of the multiplexer 22 is added fX '4
Q) When external video data 15 is written after adding a predetermined value input to N 23.

At this time, the multiplexers 11 and 22 select the third position 10b1 of the output signal of the address counter 21, respectively.
Qbit is selected.

Further, the addition value 24 in the adder is set to 0, and the old address of the screen memory 20 is specified. As a result, the video data of the A portion is stored in the screen memory according to the η-head map shown in FIG. Next, reading display data to the liquid crystal panel will be explained. If the multiplexer readout address is selected such that multiplexer 11 is the upper one and multiplexer 22 is the lower one, the liquid crystal display will display the same state as that written in the screen memory 20 (in the case of A6, as shown in FIG. 1(a)). It will be displayed as follows. Next, the conversion from the display in (a) to the display in (b) will be explained. When the coordinate conversion key of the operation unit 6 is pressed, the signal line 16 causes the multiplexer 11 to select the lower 1Qbit, the multiplexer 22 selects the upper 1[]blt by y'N, and the adder 23 adds the same as described above. By reversing the upper and lower parts, the data output from the screen memory 20 is 1
Roughly 024 pixels and 760 rows with the X direction as sub-scanning.
Output. Therefore, the right end of the images in Figures 1 (, ) and 4 are missing, and as shown in Figure 1 (b), (
An image in which data at the right end of the screen in b) is missing will be displayed. However, the image is 90° to (a)
Since it has been rotated, it can be easily deciphered.

Next, the display of the image of the missing portion in FIG. 1(a) will be explained. The missing data is the data at addresses 760 to 1023 in the X direction in the detailed diagram of Fig. 4. To read the address, leave multiplexer 11 selecting the lower bit and multiplexer 22 selecting the upper 1Q' bit. In this state, address can be performed by adding data 760 as an initial value to the output of the multiplexer 22, that is, the address data in the X direction, using the signal line 9 or 10.17.The additive value 760 is added to the adder 26. Although it is applied as an input 24 to the input signal line 24, it is also possible to arbitrarily set it using the signal line 17 according to an operator's instruction.

After confirming the information d3 by display according to the above-mentioned procedure, it goes without saying that copying is performed by returning to the display layer of FIG. 1(a) using the same procedure. As explained above, the gist of the present invention is not only to facilitate the decoding of vertically old and A5°1゛1 originals by rotating the display image of the planar display, but also to make it easier to decode originals written in A5°1゛1 by rotating the display image of the surface display. In order to align the displayed image with the feeding direction of the transfer paper, image editing is performed, typically by rotating the image again. For example, if you want to enlarge or reduce only the necessary part of the displayed data and copy it, Alternatively, the same method can be used when copying the entire image by shifting it by m/m in the X direction taking into account the binding margin of the transfer 4A. In addition, the μPD7220 (NEC (42)) was used as a graphic display controller.
), but it is also possible to perform rotation, scrolling, enlargement, reduction, etc. through software intervention based on control commands and parameters sent from the microprocessor. Note that the planar display does not need to be planar and does not need to be limited to liquid crystal.

Effects As detailed above, according to the present invention, it is possible to control the display of image information displayed on the image display device by using the image display device, thereby providing an image forming apparatus with improved operability. were able to provide.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of an image forming apparatus. FIG. 2 is a diagram showing the display state of the planar display. FIG. 6 is a block diagram of display control of the planar display. FIG. 4 is a detailed diagram of the display state. Roha indicator on rod 16 Patent applicant: Canon Co., Ltd.

Claims (1)

[Claims] An image forming apparatus equipped with a display means for displaying image information, characterized by comprising a control means for controlling conversion of the image information depending on whether or not to perform image formation based on the image information displayed by the display means. image forming apparatus.