JPS61198282A - Print image display unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to a print image display device that displays a print image actually printed by a printing means.

[Technical distribution of the invention and its problems] When creating, proofreading, adding to, or editing a document in a two-doub0 setter, the content of the document is usually displayed on a display device, and the process is performed while viewing the display. After that, the created document is printed using a printing device.

However, the actual printing result of the printing device differs from the display on the display device. For example, even if the character spacing or line spacing is changed, the display on the display device remains the same. For this reason, there was a problem in that the display device could not predict the actual printing results. Therefore, in order to optimize the line spacing and character spacing, it was necessary to proofread the document and actually print it several times.

Also known is a layout display in which characters are represented by special symbols and the layout of the entire document is displayed.

However, since this layout display does not accurately display the printed image of the document, there is a problem in that it is not possible to know in advance the actual printed result.

[Purpose of the invention]

The present invention has been made in consideration of the above circumstances, and it is an object of the present invention to provide a print image display device that allows you to know the actual print image in advance without actually printing.

[Summary of the invention]

In order to achieve the above object, a print image display device according to the present invention includes a print image creating means for creating a print image to be printed by the printing means based on a character symbol string input to the printing means, and a print image created by the print image creating means. a converting means for converting a printed image into a display image; a storage position instructing means for instructing a storage position of an arbitrary display image by a control signal such as a line feed signal input to the printing means; and a display converted by the converting means. The present invention is characterized by comprising display image storage means for storing an image at a storage position designated by the storage position designation means, and display means for displaying the display image stored by the display image storage means.

[Embodiments of the invention]

The present invention will be described below based on an embodiment shown in the drawings. 1st
The figure shows a word processor including an image display device according to an embodiment of the present invention. Processor 1 is in charge of various processes and I1IIll in the word processor. Programs and data executed by this processor 1 are stored in a memory 2. This memory 2 is connected to the processor 1 via a path line 8. This word processor also includes a keyboard 3 for inputting characters, symbols, etc. to create a document, a display bag @4 for displaying the document, a printing device 5 for printing the document, and a folder for storing the document. A Tubi disk device 6 and a magnetic disk device M7 are provided via a common path line 8.

The display image displayed by the display bag M4 is stored in the display image memory 21 in the memory 2.

Further, the print image printed by the printing device is stored in the print image memory 22.

In the display image of this embodiment, one character is 24 bits long and 2 bits wide.
It has 4 pits. Since the display bag W4 is a CRT and is scanned horizontally, the display image for one character is as shown in Figure 2 (a).
As shown in the figure, 24 rows of 3 bytes each are arranged horizontally. The display image configured in this way is the 10th (b)
) is stored in the display image memory 21 as shown in FIG.

That is, data of display images of the same slice are grouped together and stored in slices.

Furthermore, since the printing device 5 is a wire dot printer in this embodiment, the printed image has a different configuration from the displayed image as shown in FIG. 3(a).

In other words, wire dot printers print characters by scanning the bin heads arranged in 111 rows in the horizontal direction.
The print image is arranged in 24 columns of 3 bytes each in the vertical direction. The print image configured in this way is shown in Figure 3(b).
The image is stored in the print image memory 22 as shown in FIG. That is, the characters are stored in the print image memory 22 one character at a time in the order of printing.

FIG. 4 is a functional block diagram of the image display device according to this embodiment. The print image creation means 11 is the printing device 5
A printing image to be actually printed with the printing bag M5 is created from the character and symbol string input to the printing bag M5.

The print image created in this way is stored in a print image memory 22 connected to the print image creation means 11. The conversion means 12 includes a print image memory 22
A print image as shown in FIG. 3(a) stored in the computer is converted into a display image as shown in FIG. 2(a).

That is, a print image arranged vertically in units of 3 bytes is converted into a display image arranged in units of 3 bytes in the horizontal direction. The storage position instructing means 13 indicates in which position in the display image memory 21 the converted display image is to be stored, not in units of rows but in units of slices, and can specify any position in the display image memory 21.

The display image converted by the converting means 12 is stored at an arbitrary position specified by the storage position specifying means 13.

The contents of the display image memory 21 are always displayed on the display device 4.

Next, the operation of this embodiment will be explained using the flow chart shown in FIG. When Oberley and Yu specify print image display from the keyboard 3, first, the display image memory 21 is initialized, and the display start pointer in the storage position indicating means 13 is initialized (step 101). That is, a value indicating the home position at the upper left of the display image memory 21 is stored in the display start pointer. Next, it is determined whether the print data input to the printing device f5 is a line feed signal (step 102). If it is not a line feed signal,
A print image for one line is created by the print image creation means 11 and stored in the print image memory 22 (step 103). Next, the contents of the print image memory 22 are converted into a display image, and this display image is written into the display image memory 21 from the position of the display start pointer (step 104). If the print data is a line feed signal, the number of slices equal to the number of line feed dots indicated by the line feed signal is added to the display start pointer (step 105). After completing the processing in step 104 or step 105, it is determined whether the processing of one page of print data has been completed (step 10
6). If the process has not been completed, the process returns to step 102 and the above process is repeated. If it has been completed, the print image display process is ended.

As a converting means for converting a print image into a display image, for example, the character pattern rotation conversion/conversion method described in Japanese Patent Application No. 86376/1980 may be applied.

In the above embodiment, the print image is stored in the -H print image memory and then converted to the display memory, but the print image may be directly converted to a display image and written to the display image memory without providing a print image memory. .

Furthermore, if the printing method of the printing device and the display method of the display device are different, the print image and display image will also be different, and the conversion method of the conversion means will be different.

Furthermore, if the number of dots that can be printed on the paper size printed by a printing device and the number of dots that can be displayed by a display device are different, when converting from a print image to a display image using a conversion means and when processing a line feed signal, , you can scale it up or down. As the enlarging/reducing method, for example, the method described in the above-mentioned Japanese Patent Application No. 1986-86376 can be applied.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to know the print image before actually printing with the printing device.

Therefore, it is only necessary to actually print after determining the optimum layout while looking at the display on the display device, so that the number of actual printing operations can be reduced and paper can be saved. Furthermore, since the printed image can be seen even without a printing device, it is possible to create a document with an appropriate printed image even with a device that does not have a printing device.

Furthermore, since the print image can be stored at any position in the display image memory using a line feed signal, a more appropriate document layout is possible.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a word processor including a print image display device according to an embodiment of the present invention, FIG. 2(a) is a diagram showing a display image in the same word processor, and FIG. 2(b) is a diagram showing a display image in the same word processor. 3(a) is a diagram showing a print image in the word processor; FIG. 3(b) is a memory map of the print image memory in the word processor; FIG. 4 is a block diagram of the print image display device; FIG. 5 is a time chart showing the operation of the print image display device. DESCRIPTION OF SYMBOLS 1... Processor, 2... Memory, 21... Display image memory, 22... Print image memory, 3...
. . . Keyboard, 4 . Means, 13... Storage position indicating means. Applicant's agent Seiji Inomata Figure 1 Helmet Figure 2 (b) Figure 3 Akira

Claims (1)

[Scope of Claims] Print image creation means for creating a print image to be printed by the printing means based on a character symbol string input to the printing means; and converting the print image created by the print image creation means into a display image. a storage position instructing means for instructing an arbitrary display image storage position by a control signal such as a line feed signal inputted to the printing means; 1. A print image display device comprising: display image storage means for storing the display image in a designated storage position; and display means for displaying the display image stored by the display image storage means.