JPS62128329A - Print image display system - Google Patents

Abstract

PURPOSE:To grasp an actual print image rapidly without performing a test print, to improve a work from the expense and the time points of view, and to improve a work efficiency as a result by displaying the image when a printing is performed actually on a form on a display. CONSTITUTION:A print data of one line is generated with a line data generating mechanism 13, and simultaneously, a bit of paper feed information, and also a bit of page-turn information in a page-turn time, is outputted, and a generated print data is stored at a line buffer 9 with a pattern conversion device 14 as a dot image. The print data stored at the line buffer 9 is printed, in an ordinary print time, by a main body 8 by making on a change-over switch 10 connecting it to an (a) side. Meanwhile, in the display time of the print image, the changeover switch 10 is turned on connecting it to a (b) side, and the print image is reduced with a reduction logic circuit 18, and is stored again at the buffer 9. The content is written on a video memory 12, and is displayed on a display mechanism 11 as the print image.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a print image display method suitable for use in a document creation device.

[Technical background of the invention and its problems]

When you create a document using a word processor or work stage seal, or proofread or add to a document stored on an external storage device such as a magnetic disk, apart from the displayed image of the document, details of the printed image (false, printed In many cases, it was not possible to tell until after execution.

That is, the display screen image and the printed image do not necessarily match. Therefore, if the printed results are undesirable,
Trial, error f, #! This not only wasted paper, but also caused a loss of time and was inconvenient from an economic and efficiency standpoint. ] The present invention has been made based on the above-mentioned disadvantages, and by displaying the image actually printed on paper on the entire display gray, the actual printed image can be quickly grasped without trial printing, and it saves money and time. Hoping for positive results in terms of
Furthermore, it is an object of the present invention to provide a print image display method that improves work efficiency.

[Summary of the invention]

The present invention focuses on the fact that the above-mentioned display screen image and printed image do not necessarily match because of the difference in resolution between the screen and the display, and reduces the printed image at an arbitrary magnification. By displaying the image, it is possible to understand the actual print image without making a trial print. For this reason, conventionally, the components of this type of device include a reduction logic circuit that reduces the contents of the line buffer at an arbitrary magnification and rewrites it to the line buffer when display of a print image is specified; A dividing logic circuit that determines the amount of line feed by dividing the paper feed information issued when generating a print image for a line according to the reduction ratio, and a line that determines the number of line feeds during printing by the dividing logic circuit. A counter is added.

This makes it possible to omit trial printing, allows the user to grasp the actual image when actually printed on paper, and improves work efficiency.

[Embodiments of the invention]

Hereinafter, embodiments of the present invention will be described in detail using the drawings. FIG. 1 shows an example of the configuration of a document creation device 4 to which the present invention is adopted. In the figure, l is the CPU and 2 is the program data. 3 is an external storage device such as a disk in which the text i is stored; 1 is a screen display device for displaying the print image; and 5 is a key equipped with keys necessary for document creation. -P, and 6 indicates a printing device for printing text on paper.

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FIG. In the figure, numerals 7 and 8 each indicate the one-printing device 5 divided into a control section (7) and a main body section (8), and numerals 9 and 10 inside the control section 7 indicate line buffer changeover switches, respectively.

Also, a screen display device! Built-in numerals 11 and 12 respectively indicate a display mechanism for performing screen display and a video memory in which screen display data is stored.

FIG. 3 shows the hyperactivity of the data shown in FIG. 2 in more detail. In the figure, numeral 13 indicates a line data generation mechanism for generating data for one line, and numeral 14 indicates a nine-turn conversion device for converting a character code into a dot image. 15 is a control unit that performs various controls; 16 is a frequency dividing logic circuit for reducing the amount of line feed according to the reduction ratio;
17 is a line counter that counts the number of line breaks, and 18 is a reduction circuit that reduces the print image according to the reduction ratio.

In addition, in FIGS. 2 and 3, blocks with the same numbers as those in FIG. 1 are the same as those in FIG. 1.

FIG. 4 is a diagram conceptually showing the operation of the embodiment of the present invention in which an image printed on paper is displayed in a reduced size on the screen.

Hereinafter, the operation of the embodiment of the present invention will be explained in detail. First, the operator specifies print image display via the key gate 5. This allows the changeover switch IO to
side, that is, the screen display device 4 side, the contents of the line buffer 9 are written on the video memo IJlZ and displayed on the screen display device 1.

On the other hand, in normal printing mode, the selector switch 10 is
side, that is, the main unit 8 side, and the line buffer 9
The content of is printed by the main body section 8. FIG. 3 further explains the above operation in detail, and will be described in detail below using FIG. 3.

First, the line data generation mechanism 13 generates print data for one line, and at the same time, paper feed information (page break information at the time of page break) is also output. The generated print data is stored in the line buffer 9 as a dot image by the pattern conversion device 1f14.

The paper feed information output at this time is frequency-divided by a frequency division logic circuit 16, and a line counter 17 determines the address on the video memory 12 of the Y coordinate data at the time of printing. Furthermore, when page break information is issued, the contents of the video memory 12 are cleared and the line counter 17 is also set to its initial value.

During normal printing, the print data stored in the line buffer 9 is printed by the main body 8 when the changeover switch 10 is turned on to the ■ side. On the other hand, when displaying a print image, the changeover switch 10 is turned on to the ■ side, the image is reduced by the reduction logic circuit I8, and the image is stored in the buffer 9 again. This content is written into the video memory 12 and thereby displayed on the display mechanism 11 as a print image.

The above operation is conceptually shown in FIG. In the figure, the shaded area indicates the reversal area.

Although the case where the printed image on paper is displayed in a reduced size on a CRT has been described above, if reduced display is not particularly required, the frequency division logic circuit 16 and the reduction logic circuit 18 are unnecessary.

〔Effect of the invention〕

As explained above, according to the present invention, by displaying on the screen a reduced image of the image when printed on paper, trial printing can be omitted, and the image when actually printed on paper can be omitted. can be grasped quickly and efficiently, and the effects in terms of time and labor are significant. This leads to improved work efficiency.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of the configuration of a document creation device in which the present invention is realized, FIGS. 2 and 3 are diagrams schematically showing how data is moved in an embodiment of the present invention, and FIG. FIG. 3 is a diagram conceptually showing the operation of the embodiment of the invention. 1...CPU, 2...Main memory,! ...Screen display device, viewing...printing device, 9...line buffer, 1
0... Selector switch, 11... Display mechanism, 12.
...Pideomesori, 13...Line data generation mechanism, 16
... Frequency division logic circuit, 12... Row counter, 18...
・Reduced logic circuit. Applicant's agent Patent attorney Takehiko Suzue rs1 Figure 2b No. 3121 No. 4r:4

Claims (1)

[Claims] It has a video memory in which display screen information is stored, and a line buffer in which one line of print image information is stored,
A reduction logic circuit that reduces the contents of the line buffer at an arbitrary magnification and rewrites the contents to the line buffer when display of a print image is specified in a document creation device that displays or prints information stored in each; Above 1
A frequency division logic circuit that divides the paper feed information issued when generating a print image for a line according to the reduction ratio and determines the line feed amount, and the frequency division logic circuit sets the number of line feeds at the time of printing. and a line counter, and when displaying a print image, writes the contents of the line buffer to the address position of the video memory specified by the line counter,
A print image display method characterized by reading and displaying this.