JPH03133666A - Printer device - Google Patents

Abstract

PURPOSE:To inhibit a horizontal ruled line from being undesirably printed in a wave form by a construction wherein a continuous M dot judgement mechanism, a just previous line printing absence judgement mechanism, a division printing control mechanism, and a continuous printing control mechanism are provided, and a horizontal ruled line is printed by the division printing control mechanism during the presence of a residual vibration. CONSTITUTION:Printing data from a host 1 is supplied to a data processing mechanism 4 either in a code format or in an image format. A continuous M dot judgement mechanism 10 judges whether printing data of, e.g., continuous 24 dot or more is present with respect to data on a dot line as a printing target. A just previous line printing absence judgement mechanism 11 judges whether a line feed is conducted in the absence of printing data in a just previous dot line. When both the judgement mechanisms 10, 11 output a logic '1', dot line data to be printed is supplied to a division printing control block 12 by an AND logic 14. Otherwise, it is supplied to a continuous printing control part 13.

Description

[Detailed description of the invention] 〔overview〕 Regarding shuttle type printer equipment.

When printing horizontal ruled lines on a dot line after a line feed has been performed because there is no print data on the previous dot line, the horizontal ruled lines may undesirably wave due to residual vibration of the platen. In order to prevent this, the system is equipped with a continuous M dot determination mechanism, an immediately preceding line non-print determination mechanism, a 1-division print control mechanism, and a continuous print control mechanism, and is equipped with a When printing, the printing is performed using the divided printing control mechanism.

(Industrial application field) The present invention relates to a shuttle type printer device.

In the case of this type of printer device, when a line feed is performed without print data on the immediately preceding dot line,
The residual vibration of the platen after the line feed causes the paper to shake in a direction perpendicular to the direction of movement of the print head.

[Conventional technology]

First, the state of paper movement in this type of printer device will be explained.

FIG. 4(A) is a diagram showing the paper movement situation in an ideal case, and FIG. 4(B) is a diagram showing the actual paper movement situation in a somewhat exaggerated manner.

In an ideal case, as shown in FIG. 4(A).

When the movement of the paper accompanying the line feed is completed, the residual vibration disappears, and during this period the print head moves in one direction, for example from left to right, and printing is performed during this movement. For this reason, the printed horizontal ruled lines are as shown in the horizontal ruled line 100 shown in the figure.
It becomes a straight horizontal line.

However, in reality, it is as shown in FIG. 4(B).

Residual vibrations exist after the paper has finished moving due to the line feed. For this reason, printed horizontal ruled lines tend to have a wavy shape at the beginning, as shown in horizontal ruled line 101 in the figure.

[Problem to be solved by the invention]

Because the above-mentioned waving occurs, when printing horizontal ruled lines, as shown in [Conventional example] in Fig. 5, the nth hammer, (n+1)th hammer, etc. Relatively large undulations tend to occur at the beginning of the range.

In the present invention, on a dot line after a line break is performed because there is no print data on the immediately preceding dot line,
The purpose of this invention is to prevent horizontal ruled lines from becoming undesirably wavy due to residual vibration of the platen when printing horizontal ruled lines.

That is, as shown in FIG. 5 as [the present invention].

Half of the dots are printed while the print head moves in one direction A), and the other half of the dots are printed while the print head moves in the opposite direction B) 1 Both are shown together in the diagram (C) The aim is to obtain horizontally ruled line printing and to suppress the wavy state. As a result, the printing time on one dot line is as shown in Figure 6.
For example, it is twice as large as the case shown in FIG.

[Means to solve the problem]

FIG. 1 shows a basic configuration diagram of the present invention. Reference numeral 10 in the figure is a continuous M-dot determination mechanism, which determines whether there is continuous printing data of, for example, 24 dots or more regarding the data on the dot line that is currently being printed, and uses a logic It outputs "1". Reference numeral 11 denotes a previous line non-print determining mechanism, which determines that there is no print data in the immediately preceding dot line and that a line feed has been performed, and outputs the logic "lj".

Reference numeral 12 denotes a division printing control mechanism, which prints print data on one dot line by printing every other dot, for example, while the print head is moving in one direction, and printing the remaining dots in the opposite direction. Control is performed so that printing is performed during the movement of the print head. Reference numeral 13 denotes a continuous printing control mechanism, which controls the printing of print data on one dot line so that printing is performed continuously while the print head moves in one direction. . Furthermore, 14 and 15 indicate AND logic and NAND logic, respectively.

[Operation] The print data (dot line data) on the print dot line is supplied to the division print control mechanism 12 when the AND logic 14 issues the logic "1", and the NAND logic 15 issues the logic "1". When issuing "l", continuous printing control mechanism 1
3.

For this reason, if there is no print data on the immediately preceding dot line and a line feed is performed, and if there is 5 and there is, for example, 24 or more consecutive print data on the dot line, then 9 Printing is performed by the divided printing control mechanism 12. In other cases, printing is performed by the normal continuous printing control mechanism 13 as in the conventional case.

[Embodiment] Fig. 2 shows the configuration of an embodiment of the present invention. In Fig. 2, reference numeral 1 is a host, 2 is a printer device, 3 is a microprocessor, 4 is a data processing mechanism, 5 is a character generator, and 6 1 is a dot pattern expansion memory, 10 is a continuous M dot determination mechanism, 11 is a immediately preceding line non-printing determination mechanism, 12
13 is a divisional printing control mechanism, 13 is a continuous printing control mechanism, 14 is an AND logic, 15 is a NAND logic, and 17 is a divisional printing situation.

18 represents a continuous printing situation.

Data for printing is supplied from the host 1 to the data processing mechanism 4 in either code format or image format.

If received in code form.

The data is converted into an image format by the character generator 5, and the dot line data on each dot line is developed on the dot pattern development memory 6.

The continuous M dot determination mechanism 10 determines the data on the dot line to be printed.

For example, it is determined whether there is print data that includes 24 or more consecutive dots. Mechanism 1 for determining whether there is no printing on the immediately preceding line
1 determines whether or not there is no print data in the immediately preceding dot line and a line feed has been performed.

When both of the determination mechanisms 10 and 11 output the logic "IJ", the AND logic 14 is used.

The dot/line data to be printed is sent to the division printing control unit 1.
2. Otherwise, it is supplied to the continuous printing control section 13.

FIG. 3 shows a flowchart of an embodiment of the present invention.

(1) In process (2), data is received from the host.

(2) In process ■, dot pattern expansion memory 6
Dots are expanded on top.

(3) In process (2), the count number m for clearing the horizontal ruled line flag and the space flag and checking the presence or absence of a horizontal ruled line of 24 or more consecutive dots.

The count number n for checking whether all the dot lines have no data is cleared.

(4) In process (2), it is checked whether the dots on the dot line that are currently being printed are print data or spaces.

(5) If it is print data, m4-
Perform m+l, n-1.

(6) In process (2), it is checked whether m-24 or not.

If NO, proceed immediately to process (2).

(7) If m=24, a horizontal ruled line flag is set to indicate that it is a horizontal ruled line in process (2).

(8) If the answer is No in the above process (■).

In treatment ■, 1m←0. Perform n+-n+1.

(9) In process (2), it is checked whether n indicates the maximum dot column address (the last column of the dot line). If NO, immediately proceed to process ■, if yes.
In the case of S, it indicates that there is no print data on the corresponding dot line.

Oω In the processing [phase], a space or space is added to indicate that there is no print data on the relevant dot line.
Set flag.

00 In process (2), it is checked whether the column address of the data indicates the maximum dot column address. If NO, proceed to process@.

If YES, proceed to process @.

a21 In processing @, add 1 to the data column address and start processing for the primary dot.

In the case of surface processing @, it means that processing up to the last dot position in the dot line has been completed, so it is checked whether the space flag is set at that point. The fact that the dot line was standing means that there was no print data on the dot line.

Q4) If the space flag is set, set the line feed flag in the process [phase].

Then, in the process [phase], a change action is performed.

00 If NO in process ■, process [
It is checked whether the horizontal ruled line flag is set in [phase].

θ If NO in the process [phase], continuous printing operation is performed in the process [phase].

08) If YES in process 0, process [
It is checked whether the line feed flag is set in [phase].

09 If NO, proceed to process ■, but if YES, clear the line feed flag in process ■, and then proceed to process [
A divided printing operation is performed in the phase].

〔Effect of the invention〕

As explained above, according to the present invention, under certain conditions when printing horizontal ruled lines, the printing time becomes long as shown in FIG. 6, but as shown in FIG. Wavy horizontal ruled lines are suppressed.

[Brief Description of the Drawings] Fig. 1 is a diagram showing the principle configuration of the present invention, Fig. 2 is a configuration diagram of an embodiment of the present invention, Fig. 3 is a flowchart of an embodiment of the present invention, and Fig. 4 (A) ( B) is an explanatory diagram for explaining the conventional case, FIG. 5 is an explanatory diagram for explaining the H type of horizontal ruled line printing, and FIG. 6 is an explanatory diagram for explaining the printing time in the case of the present invention. In the figure, 1 is the host, 2 is the printer device, and 3 is the micro
4 is a data processing mechanism, 5 is a character generation destination, 6 is a dot pattern expansion memory, 10 is a continuous M dot judgment mechanism, 11 is a immediately preceding line print/non-print judgment mechanism, 12 is a division printing control mechanism, and 13 is a continuous Print system? l
Represents i-configuration.

Claims (1)

[Claims] In a shuttle-type printer device configured such that paper is fed in a direction perpendicular to the direction of movement of the print head and a changeover operation is performed by feeding the paper, a continuous M dot determination mechanism (10) that determines whether there is print data of a predetermined number of M dots or more consecutively with respect to dot line data developed on a dot line to be printed; a immediately preceding line non-printing determination mechanism (11) for determining whether or not there is no print data in the dot line immediately preceding the dot line to be printed and a line feed has been performed in the immediately preceding dot line; , A split print control mechanism that performs a thinning printing process that separates an interval of at least one dot during the reciprocating movement of the print head when the print head prints on the dot line to be printed. (12), Continuous printing in which the printing process of continuously printing dots is performed while the print head is moving in one direction, when the print head prints on the dot line to be printed. a control mechanism (13); the continuous M dot determination mechanism (10) determines the presence of the continuous M dot determination mechanism (10); and the immediately preceding line non-print determination mechanism (11);
The printing operation by the print head is executed based on the control by the division print control mechanism (12) on the condition that the print head determines no printing, and in other cases, the continuous print control mechanism (13) ).