JPH0347778A - Format controller for page printer - Google Patents

Abstract

PURPOSE:To enable even a printing image being slightly over a bottom margin to be printed on the same page by a method wherein a blank line in the printing image is reduced or deleted by a bottom margin justification control part for controlling justification in accordance with an output from an overprinting detection part. CONSTITUTION:A received data conversion part 1 converts printing data to a dot printing image. The printing image is stored in a frame memory 2. The printing image is referred to a bottom margin value stored in a bottom margin memory part 3 by a bottom margin overprinting detection part 4. Whether the printing image is a slightly overprinting image or not is recognized. If it is shightly over the bottom margin, a flank line in the printing image is searched by a bottom margin justification control part 5, and the blank line is deleted or reduced on the frame memory 2 so that the printing image can be printed within the bottom margin. In this manner, the printing image reduced to be within the bottom margin is printed lastly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a format control device for a page printer, and more particularly to a format control device for a page printer that controls bottom margin overprinting.

[Conventional technology]

Conventionally, print data exceeding the bottom margin in the format control device of such a page printer is not printed or is printed on the next page.
Full printing that fits within the bottom margin on the same page is not performed.

[Problem to be solved by the invention]

The format control device of the conventional page printer described above is also applied to print data that slightly exceeds the bottom margin, and is designed to drop characters that exceed the bottom margin or print them on the next page. Therefore, there is a drawback that it is not possible to satisfy the demand for printing characters that slightly exceed the bottom margin on that page.

SUMMARY OF THE INVENTION An object of the present invention is to provide a format control device for a page printer that allows printing on a page even when printing slightly exceeds the bottom margin.

[Means to solve the problem]

A format control device for a page printer according to the present invention includes a storage section for a bottom margin, and a frame memory in which a printed image of a page is stored. It has a bottom margin overprint detection section connected to it, and a bottom margin justify control section that controls the bottom margin based on the output of the overprint detection section, and reduces blank lines in the print image when the bottom margin overflow is detected. The printer is configured to perform bottom margin correction to reduce or delete the printed image and fit it within the bottom margin.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a functional block diagram of a format control device for a page printer showing an embodiment of the present invention.

As shown in FIG. 1, this embodiment includes a received data converter 1 that converts received data for printing, a frame memory 2 that stores the printed image of the page, and characters that slightly exceed the bottom margin. It has a bottom margin storage unit 3 for printing the column on the page, a bottom margin over detection unit 4, and a bottom margin justify control unit 5. When this occurs, margin correction is performed on the print image in the frame memory 2 and the print image is outputted to the print unit 6.

That is, the received data converter 1 converts the print data into a print image, and the print image is stored in the frame memory 2. Further, the bottom margin value stored in the bottom margin storage section 3 and the print image are referred to by the bottom margin overdetection section 4, and it is recognized whether the print image is slightly over the bottom margin.

Here, if there is a print image within the bottom margin,
The print image is directly transferred from frame memory 2 to print unit 6.
However, if the bottom margin slightly exceeds the bottom margin, the bottom margin justify control unit 5 searches for a blank line in the print image and deletes or reduces the blank line so that the print image fits within the bottom margin. A small amount is executed on the frame memory 2. In this way, the print image contained within the bottom margin is finally printed. It should be noted that for a printed image in which the bottom margin exceeds significantly, the printing data that exceeds the bottom margin is deleted or printed on the next page without performing the bottom margin justify control section as in the past.

FIGS. 2(a) to 2(c) are state diagrams of the print image in the frame memory, the controlled print image, and the final print shown in FIG. 1, respectively.

As shown in Figures 2(a) to (C), this state shows the process of processing print data that slightly exceeds the bottom margin. The print image 7 on the frame memory 2 becomes the print image 10 on the frame memory 2 subjected to bottom margin justify control as shown in FIG. 2(b). The printed image 10 after this justification becomes the final printed image 11 shown in FIG. 2(c), which is stored within the bottom margin 9 as it is. Note that the top margin 8 is not a problem here, so its explanation is omitted.

〔Effect of the invention〕

As explained above, the page printer format control device of the present invention detects a print image that slightly exceeds the bottom margin using the bottom margin over detection section, and removes blank lines in the print image using the bottom margin just control section. By deleting or reducing the print image so that it fits within the bottom margin, you can print the desired print image on the same page without missing the print image beyond the bottom margin or printing on the next page. It has the effect of being able to be printed.

[Brief explanation of drawings]

Fig. 1 is a functional block diagram showing one embodiment of the present invention;
Figures (a) to (c) are state diagrams of the inside of the print image in the frame memory shown in FIG. 1, the controlled print image, and the final print, respectively. 1... Reception data conversion unit, 2... Frame memory, 3... Bottom margin storage unit, 4
・Old...Bottom margin over detection section, 5...
Bottom margin justify control section, 6...
・Print area, 7...Print image beyond bottom margin, 8...Top margin, 9...
・Bottom margin, 10 ・Print image after bottom margin justify control, 11...
Final print.

Claims (1)

[Claims] A format control device for a page printer having a bottom margin storage section and a frame memory in which a print image of one page is stored, a bottom margin overprint detection section connected to the bottom margin storage section and the frame memory; and a bottom margin justify control section that controls a bottom margin based on the output of the overprinting detection section, and when the bottom margin overflow is detected, the blank line in the printing image is reduced or deleted to fit the blank line within the bottom margin. A format control device for a page printer characterized by performing bottom margin correction to accommodate a printed image.