JPS62233256A - Printing-controlling system for printer - Google Patents

Abstract

PURPOSE:To reduce a load on a printing head and enable throughput of printing to be enhanced, by printing a heavy-duty line in a single printing operation by lowering a printing speed to a speed at which the heavy-duty line can be printed. CONSTITUTION:When a heavy duty is detected with respect to a line, a spacing motor 10 is rotated at a rotating speed (1,000pps) equal to, for example, one half of that before the detection of the heavy duty, thereby printing the line in a single printing operation under control. Namely, a heavy duty detecting circuit 3 detects the heavy duty based on the ratio of the sum of the numbers of print dots for characters to be printed which are generated by a character generator 2 to the total number of all print dots, and a detection signal 4 is outputted to a spacing motor controlling part 6, thereby printing in the manner shown in the diagram. Accordingly, a load on a printing head 9 can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a print control system for a wire dot serial printer.

[Conventional technology]

Conventionally, in wire dot serial printers.

When one line of print data is heavy-duty in terms of the number of prints, that line is divided into a number of printing operations.

FIG. 3 is a diagram illustrating the cross-feeding operation of printing in the conventional printing control system when the printing operation is divided into two times when one line is heavy-duty.

With this tooth, start the fjlN feed motor with 200Of)I)
Rotate with S and perform forward printing while outputting print data to the odd numbered pins 9111 of the wire dot serial printer head/(B).

After the carriage return ((1), turn the horizontal feed 9 motor 2 again.
Forward printing (11) was performed while rotating at 000 ppS and outputting data on the remaining even numbered pins.

[Interset point J to be solved by the invention] The printing control method of the conventional printer described above divides the printing operation into multiple times for the heavy-duty lines of the number of prints, so the throughput and number of prints are reduced. It has the disadvantage of being bad.

SUMMARY OF THE INVENTION An object of the present invention is to provide a printing control system for a printer that can increase the throughput t even in heavy-duty printing.

[Means for Solving Problems J] In the print control method of a wire dot serial printer that drives according to the number of printed dots, the total number of printed dots corresponding to the printing pins of the plurality of printed dots of the output character is a heavy-duty detection circuit that detects that the proportion of the print head is heavy duty; and a lateral control circuit that controls the rotation speed of the traverse feed motor that traversely feeds the print head to a slow rotation speed when there is a detection output of this detection circuit. A feed motor control section is provided, and the printing operation for one line at the time of detecting the heavy beam tee is performed at one time, thereby reducing the load on the print head.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the print head of this embodiment.

In the 11th A, 1 is a printer control unit, 2 is a character generator, 3 is a heavy duty detection circuit, 4 is a detection signal that is the output of the heavy duty detection circuit, 5 is a print head control unit, and 6 is a lateral feed motor control. 7 is a print head driver, 8 is a horizontal feed motor driver, 9 is a print head,
10 is a lateral feed motor.

FIG. 2 shows that the horizontal feed motor is rotated at 10,001)I)S, which is half of the speed of rotation before heavy duty operation, and printing of one line is controlled in -times of printing operation.

That is, the heavy duty detection circuit 3 detects the heavy duty from the ratio of the number of printed dots of the characters printed by the character generator 2 to the total number of printed dots, and sends a detection signal 5 to the horizontal feed motor control section 6. By outputting, the printing operation is performed as shown in Fig. 2, and the load on the print head is reduced. Since this is performed in one printing operation, the load on the print head is reduced and the printing throughput is increased.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a cross-feeding operation diagram of the print head of this embodiment, and FIG. 3 is a cross-feed operation diagram of a print head using a conventional print control method. . DESCRIPTION OF SYMBOLS 1...Printer control unit, 2...Character generator, 3...Heavy duty detection circuit, 4...Detection No. 13, 5...Print head control unit, 6...Transverse feed motor control unit , 7... Print head driver, 8... Traverse feed motor driver, 9... Print head, 10...
Cross feed simulator driver. East 11 yen] 7I Ward Reverse 9R'-1 3rd rjJ

Claims (1)

[Claims] In a print control method of a wire dot serial printer in which a plurality of print pins of a print head are driven according to a plurality of print dot numbers of an output character of a character generator, the print pins correspond to a plurality of print dot numbers of the output character. A heavy duty detection circuit detects that the ratio to the total number of printed dots is heavy duty, and when there is a detection output from this detection circuit, the rotation speed of the horizontal feed motor that horizontally feeds the print head is set to a slow rotation speed. 1. A printing control method for a printer, comprising: a horizontal feed motor control section for controlling the printer, and reducing the load on the print head by performing one line printing operation at the time of the heavy duty detection.