JPH0631990A - Printer - Google Patents

Abstract

PURPOSE:To enable the cuing of the printing paper of a printer, which has excellent operationability regardless of difference at every kind and in which the waste of printing paper is eliminated, by transmitting a command for controlling the cuing of printing paper over the printer after printing paper is cut. CONSTITUTION:Desired printing is completed by a printing head 11, printing paper is fed up to a position required for the slip issue of printing paper by the rotation of a paper-feed roller 14 and a paper-feed auxiliary roller 41, and printing paper is cut by a paper cutter 17. Blank space in length D is formed between the paper cutter 17 and the printing head 11. When printing is conducted continuously for slip issue, the greater part of the blank space D is wasted. A printing-paper cuing control command is transmitted for avoiding the waste, thus reversely rotating the paper-feed roller 14 and the auxiliary roller 41.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer, and more particularly to a printer having a print head, a swing mechanism for swinging the print head to the left and right, and a paper feeding mechanism as main elements. The present invention relates to a processing method that has a manual paper cutter, an automatic paper cutter, or the like, and reversely feeds a print sheet by a control command to perform a print sheet cue process.

[0002]

2. Description of the Related Art Conventionally, when printing is completed on a printing paper of a printer with a desired format as a receipt, several lines of paper are fed to a paper cutter position, and the printing paper is cut by a manual paper cutter or an automatic paper cutter. It was issuing. The paper cutting position is generally above the print head, and when printing is continued, a blank space is created in the print paper between the manual paper cutter or the automatic paper cutter and the print head, and the print paper is practically used. Was a waste of. As one means to solve this problem,
There was a method of responding by feeding back several lines of paper suitable for the mechanism of that model using a control command. However, according to such a method, it is necessary to reset the number of lines to be fed backward for each model to be used, which has been a great obstacle in developing application software for printers having different mechanisms.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and by transmitting a command for controlling the printing paper leading end to the printer after cutting the printing paper, regardless of the difference between the models. (EN) Provided is a user-friendly method for removing print paper from a paper cutter, which is excellent in operability, and which eliminates waste of print paper.

[0004]

DISCLOSURE OF THE INVENTION The present invention is a printing paper which prints the printing paper from the position of the paper cutter of the model to the printing start position of the printing head by transmitting a printing paper cueing control command to the printer. The printer is characterized by having control means for cueing processing.

[0005]

According to the constitution of the present invention, conventionally, after the printing paper is cut by the manual paper cutter or the automatic paper cutter, the printing paper between the paper cutter and the print head is left blank and wasted. By sending a command to the printer, the print paper is fed backwards and the print paper can be ejected to the print start position of the print paper, waste of print paper is eliminated, and a user-friendly printer can be provided. became. In addition, it is not necessary to reverse the printing paper by heading for each printer model, which is very effective in developing application software and is very useful in industry such as effective utilization of software assets.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic view showing a print head and a paper feeding mechanism which are main components of the printer according to an embodiment of the printer of the present invention. 10 is a stepping motor which is a paper feed drive source. Reference numeral 11 denotes a print head, which prints desired characters and symbols by sequentially rotating the carriage stepping motor 15 from side to side via the belt 16. In order to make it easier to understand, the embodiment shows a state in which printing is performed when the print head 11 moves in the direction of arrow A. Reference numeral 12 is a printing platen, which is usually made of a hard material. Reference numeral 13 is a printing paper. Reference numeral 14 denotes a paper feed roller. When the print head 11 finishes printing a desired number of lines, the paper feed stepping motor 10 is driven to rotate the paper feed roller 14 to rotate the print paper 1.
3 is derived in the direction of arrow B for one line. Reference numeral 17 is a paper cutter--a manual paper cutter is shown as an example, but the same applies to an automatic paper cutter.

FIG. 2 is an explanatory diagram showing the construction of the print processing method of the printer of the present invention. 20 is an interface for inputting data, 21 is a CPU, and 22, 23, 24 are I / O.
O port, 25 is ROM, 26 is RAM, 29 is a printer mechanism unit, 28 is a motor driver that drives and controls a motor in the printer mechanism unit, 27 is a head driver that controls the print head, and 30 is a paper feed switch. Shows. The RAM 26 has an input buffer for storing print data as it is and a print buffer for converting the print data into dot data of the print head portion of the printer and storing the dot data. The CPU 21 controls the printer as a whole according to the program code stored in the ROM 25. In the ROM 25, in addition to the program code, a character generator that converts a character font into data is stored. Generally, the printer reads a specific code from the character string data input from the interface 20, interprets these required commands, and performs the printing operation while controlling according to the commands. Paper feed switch 30
In general, when assembled as a completed printer product, it is usually arranged as a part of the operation panel on the surface of the printer body, and the signal of this switch is input to the CPU 21 via the I / O 24. .

FIG. 3 and FIG. 4 are schematic views for easily explaining the print paper leading edge processing method of the printer according to the present invention. In FIG. 3, after the desired printing is completed by the print head 11, the paper feed roller 14 and the paper feed auxiliary roller 41 are rotated to feed the paper to a position required for issuing a slip of the print paper. The state in which the printing paper is cut by the cutter 17 is shown. As mentioned above, the paper cutter 1
A blank space of length D is formed between 7 and the print head 11. If printing is continued to issue the next slip, most of this blank space D will be wasted.
In order to avoid this waste, the printer side interprets the print paper start control command, for example, ESC + G command by transmitting to the I / F 20 shown in FIG. Is reversely rotated and a predetermined amount of printing paper suitable for the printer is reversely fed, and the printing paper 13 is conveyed to the printing start position of the printing head 11 as shown in FIG. 4, and desired printing is performed by the printing head 11 and the printing platen 12. Is to do.

In particular, this command is very useful for developing application software because it can reverse a predetermined amount of printing paper suitable for the printer even if the printer model is different.

[0010]

According to the present invention, it is possible to provide a very economical printer without wasting the printing paper of the printer. Further, with regard to application software development, even if the printer model is changed, it can be dealt with without any problems, which is very useful industrially.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a printer used in the present invention.

FIG. 2 is an explanatory diagram showing a configuration of a printer driving method of the present invention.

FIG. 3 is a configuration diagram showing a positional relationship between a paper cutter and a print head of a printer according to the present invention.

FIG. 4 shows a state diagram when the print paper is reversely fed from the position of the paper cutter to the print start position of the print head by the control command according to the present invention.

[Explanation of symbols]

 10 ... Paper feeding stepping motor 11 ... Printing head 12 ... Printing platen 13 ... Printing paper 14 ... Paper feeding roller 15 ... Carriage stepping motor 16 ... Carriage belt 17. ..Paper cutter 29 ... Printer mechanism 30 ... Paper feed switch (PF switch) 41 ... Paper feed auxiliary roller

Claims (1)

[Claims] 1. A printer having a swing mechanism for swinging the head to the left and right and a paper feed mechanism as main elements, and a manual paper cutter or an automatic paper cutter or the like above the print head as a printing means. According to a control command, the print paper is fed back by a predetermined amount from the paper cutter position to the print start position of the print head, and the print paper feed-out processing control means is provided. And a printer.