JPH05116378A - Method and apparatus for adjusting needle pin fire timing of printer - Google Patents

Abstract

PURPOSE:To automatically adjusting a printer having pin heads arranging in parallel. CONSTITUTION:A printing processing part 1 performing printing, an adjusting processing part 2 performing the adjustment of fire, a pattern judging part 5 detecting an adjusting sample, an image input processing part 6 imagewise inputting the detected sample, an adjusting value calculating part 4 calculating the optimum value for measuring and adjusting the inputted sample and an adjusting value setting part 3 setting the calculated optimum value to an adjusting program are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adjusting method for a printer having a parallel pin head, and more particularly to an adjusting method of needle pin fire timing.

[0002]

2. Description of the Related Art Conventionally, the adjustment of the fire timing of the needle pin of this type of printer is set on a trial basis by a person manually setting the adjustment value of the needle pin fire timing adjustment unit by means of manually setting the adjustment value. Printing with a fixed value
It was done by the method of determining the optimum value.

Further, the adjustment value set by a human being is a fixed value, and the readjustment and the resetting are performed by a human being again.

[0004]

Since the conventional needle pinfire timing adjustment method for a printer is a method in which a human sets a test adjustment value, the adjustment time is extended, a setting error is induced, and There is a drawback that the adjustment value cannot be set in real time.

It is an object of the present invention to provide a needle pin fire timing adjusting method for a printer in which the fire timing of the needle pin is automatically adjusted.

[0006]

A method for adjusting a needle pin fire timing of a printer according to the present invention includes a step of adjusting a fire timing of a left needle pin and a right needle pin, and whether or not a print result conforms to a predetermined pattern. A step of inputting the image of the printing result of characters and symbols that match a predetermined pattern, a step of calculating the optimum value of the needle pin fire timing from the image input printing result, and the calculated needle pin The method includes the steps of setting an optimum value for the fire timing and controlling the adjustment of the needle pin fire timing according to the optimum value.

Further, the needle pin fire timing adjusting device of the printer to which the above adjusting method is applied, has means for automatically adjusting the needle pin fire timing of the left needle pin and the right needle pin by the adjusting program, and the print result is predetermined. Means for determining whether or not the print result of characters and symbols conforming to the predetermined pattern is input as an image, a print medium conveying means, and a needle pin fire based on the image input print result. Means for calculating the optimum value of the timing, means for setting the optimum value of the calculated needle pinfire timing in the adjustment program, and means for adjusting the needle pinfire timing by the optimum value of the set needle pinfire timing. It has a means for controlling.

[0008]

[Operation] The print result of characters and symbols conforming to a predetermined pattern is input as an image, the optimum value of the fire timing of the needle pin is calculated for the print result input as the image, and the optimum value is set in the adjustment program. ,
The adjusting program automatically adjusts the firing timing of the needle pin, so that the optimum firing of the needle pin is always performed automatically.

[0009]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a diagram showing the configuration of an embodiment of an apparatus to which the method for adjusting a fire timing of a needle pin of a printer of the present invention is applied.

The needle pinfire timing adjusting device of this printer comprises a print processing section 1, an adjustment processing section 2,
It has an adjustment value setting unit 3, an adjustment value calculation unit 4, a pattern determination unit 5, an image input processing unit 6, a medium conveyance unit 7, and a control unit 8. The print processing unit 1 has parallel pin heads, and prints on paper loaded in the medium transport unit 7.

The adjustment processing section 2 is an adjustment device for automatically adjusting the timing of the fire of the left needle pin and the right needle pin by an adjustment program. Pattern determination unit 5
Is a comparison device that determines whether or not the print result printed by the print processing unit 1 is a character and a symbol conforming to a predetermined pattern for adjustment. The image input unit 6 is a device for inputting an image of the print result determined by the pattern determination unit 5 as being suitable for the adjustment pattern. The adjustment value calculation unit 4 analyzes the print result input as an image,
It is a device that calculates the optimum value of the fire timing of the left and right needle pins. The adjustment value setting unit 3 includes the adjustment value calculation unit 4
Is an apparatus that sets the optimum value calculated by the above in the adjustment program of the adjustment processing unit 2. The control unit 8 is a control device that controls the processing of the devices of the respective units.

Next, the operation of this embodiment will be described.

First, a character or symbol determination pattern effective for calculating the adjustment value of the needle pinfire timing is set in the pattern determination section 5. Next, the print processing unit 1
The pattern determination unit 5 performs a determination operation each time
When the print result matching the predetermined pattern is detected, the print result is input as an image by the image input processing unit 6. With this image input, the adjustment value calculation unit 4 performs a predetermined measurement to calculate an optimum value for adjusting the fire timing of the left and right needle pins. After that, the adjustment value setting unit 3 sets this optimum value in the adjustment program of the adjustment processing unit 2. The adjustment processing unit 2 adjusts the fire timing of the left and right needle pins of the print processing unit by the adjustment program in which the latest optimum value is set, and the print processing unit 1 adjusts the fire timing needle adjusted to the optimum state at the present time. Continue printing with the pin fire.

[0015]

As described above, according to the present invention, a predetermined print pattern is determined every time printing is performed in real time, the detected print result is automatically input as an image, and the adjustment value is set in the adjustment program. Thus, there is an effect that the adjustment means can be simplified, the adjustment value setting error can be eliminated, the adjustment value setting can be automated, and the adjustment value can be realized in real time.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of an apparatus to which a method for adjusting a needle pinfire timing of a printer of the present invention is applied.

[Explanation of symbols]

 1 print processing unit 2 adjustment processing unit 3 adjustment value setting unit 4 adjustment value calculation unit 5 pattern determination unit 6 image input processing unit 7 medium transport unit 8 control unit

Claims (2)

[Claims] 1. A method for adjusting a needle pin fire timing of a printer having a parallel pin head, the method comprising: adjusting a timing of a fire of a left needle pin and a right needle pin, and determining whether a print result conforms to a predetermined pattern. The step of determining, the step of inputting the image of the print result of the characters and symbols that match the predetermined pattern, the step of calculating the optimum value of the needle pin fire timing from the print result of the image input, and the calculated needle pin fire A needle pinfire timing adjusting method comprising: setting an optimum timing value; and controlling the adjustment of the needle pinfire timing according to the optimum value. 2. A needle pin fire timing adjusting device for a printer having a parallel pin head, comprising means for automatically adjusting needle pin fire timings of a left needle pin and a right needle pin by an adjusting program, and a print result having a predetermined pattern. A means for determining whether or not they match, a means for inputting an image of the print result of characters and symbols that match a predetermined pattern, a print medium conveying means, and an optimum needle pinfire timing based on the print result of the image input. A means for calculating a value, a means for setting an optimum value of the calculated needle pinfire timing in the adjustment program, and a means for adjusting the needle pinfire timing by the optimum value of the set needle pinfire timing. Printer knee with means Lupine fire timing control apparatus.