JPS61116564A - Printing apparatus - Google Patents

Abstract

PURPOSE:To make possible to use a blank section which was useless as a blank space hitherto by controlling a printing operation with the spare pages are counted when the remained blanks are detected, and being judged whether these pages are possible to be printed or not. CONSTITUTION:A number of line signal 12 corresponding to a distance between a printing section of a printing apparatus and a blank remain detection section and a page line number count value 11 which is a number of line of one page are compared by a remained page counting section 14, and the remained pages are counted, and being memoried in a remained page counter 17. Thereafter, the number of these remained pages are reduced by one by a page changing signal being generated in every page change, and a blank completing signal 16 is outputted to a blank completing reporting section 18 when the page changing signal 15 is inputted after the content becomes zero.

Description

Detailed Description of the Invention (Technical Field) The present invention relates to the technical field of print control when paper is running low in a printing device or printing device, and relates to the technical field of printing control when paper is running low in a printing device or printing device. This invention relates to technology useful for printers that continuously print data on folded paper.

(Prior art) Conventionally, a data processing device receives print and line feed commands on continuous folding paper (in a printing device that prints data, when it detects a paper shortage, it prints the page being printed and then processes the end of the paper. Figure 1 shows the state of the paper when paper remaining is detected, where l is the printing section, 2 is the paper remaining detection section,
3 consecutively folded paper, 3a is the page part that is being printed when the remaining paper is detected. Since the VC near the print section has obstacles such as ink ribbons and is easily soiled, the paper remaining detection section is usually installed away from the print section. If LVc is smaller than the distance LVc between the printing unit 1 and the remaining paper detecting unit 2, as illustrated in FIG. However, there were blank pages that could be printed, which was a waste of paper. Note that in FIG. 1, the arrow indicates the paper traveling direction.

(Objective of the Invention) An object of the present invention is to count the number of extra pages when detecting paper remaining, determine whether or not these pages can be printed, and control the printing operation. An object of the present invention is to provide a printing device that can use a portion of paper that has been removed.

(Structure of the Invention) A printing apparatus according to the present invention includes a means for detecting the remaining amount of paper, and when detecting the remaining amount of paper, the number of lines between the remaining paper detecting section and the printing section and the number of lines of the paper being printed. The printer is configured to include means for counting the number of remaining pages by comparing the number of lines on the page, and means for controlling so that only the remaining pages are printed after detecting the paper remaining amount.

(Preferred Embodiments of the Invention) Next, examples of the present invention will be described with reference to the drawings.

FIG. 2 is a block diagram showing the control system of the printing device according to the embodiment of the present invention, in which the device stores a page that stores the number of lines on one page given by a data processing device (not shown) at the start of printing operations. A line number counter 11, a paper remaining detector 13 that detects the end of printing paper, and a remaining page counting unit 14.
, a remaining page counter 17 , and a paper end reporting section 18 . Remaining page counting section 14d, printing section of the printing device.

A line number signal 12 that is fixedly determined by the distance between the paper remaining detectors, a page line count value 11a:Th, and an end detection pulse 13a that is generated when the paper end is detected by the paper remaining detector 13 are input. , the line number signal 2 is compared with the count value 114L from the page number counter 1, and the number of remaining pages is calculated from the integer part of the division result of the line number signal value 10 pages line number count value. The remaining page counter 17 is
The counted number of remaining pages is memorized, and the number of remaining pages is subtracted by 1 from the page break signal 15Vc generated at every subsequent page break, and after the content becomes zero, the page break signal 1 is generated.
When 5 is input, a paper end signal 16 is output to the paper end report section 8. Paper end - Koto 8 uses this paper end signal 16 to stop the printing device and reports the end of paper to the data processing device.

Next, the actual operation of this device will be explained.

First, before starting a printing job, the data processing device provides line feed control information necessary for line feed control to the printing device, and the page line number counter 11 is set to the number of lines Nl on one page. After that, the printing operation is started by a print and line feed command from the data processing device, and when the end of the paper is detected by the paper remaining detector 13, an end detection pulse 13a is generated.
The remaining page counting unit 14 operates. The remaining page detection unit 14 detects the number of lines N1 in the page line number counter 11 and the printing unit,
A comparison is made with a line number signal 12 indicating the number of lines N2 between paper end detection units. In the example of FIG. 1, the number of remaining pages is three, so the count value 3 is stored in the remaining page counter 17. The value of the remaining page counter 17 is subsequently decremented by the page break signal 15 generated at each page break, and becomes 0 when printing of the last page of paper starts. When the printing progresses further and a line feed is performed to the next page, a page feed signal 150 is generated and a paper end signal 16 is generated, and the paper end reporting section 18 stops the printing device.The data processing device reports the end of paper. be done.

(Effects of the Invention) As explained above, according to the present invention, when detecting paper remaining, there is no need to leave a printable margin page and issue a signal indicating that the paper is low or that the paper is finished, and printing is performed without waste until the end of the paper. There is an effect that can be done.

[Brief explanation of the drawing]

Figure 1 is a plan view showing the state of paper detection when paper is low;
The figure is a block diagram showing a control system of a printing apparatus according to an embodiment of the present invention. 11... Page line number counter % 12... Line number signal, 13... Paper remaining detector, 13a... End detection pulse. 14... Remaining page counter, 15... Page break signal, 16... Paper end signal, 17... Remaining page counter. 18...Paper completion report section.

Claims (1)

[Claims] In a printing device that prints data on continuous folded paper, there is a means for detecting the amount of paper remaining, a paper remaining detection unit when detecting paper remaining, the number of lines between printing units, and the number of lines on one page of the paper being printed. 1. A printing apparatus comprising: a means for counting the number of remaining pages by comparing the number of remaining pages; and a means for controlling to print only the remaining pages after detecting a paper shortage.