Needle outlet arrangement way capable of improving printing efficiency and reducing printing noise

Abstract

The invention discloses a needle outlet arrangement way capable of improving printing efficiency and reducing printing noise. The printing head needle outlet arrangement way comprises 48 needles in 12 groups, 24 rows are arranged in the transverse direction, each row is provided with two printing needles, the transverse distance of two needles in the same row is 1P, and the longitudinal distance between every two adjacent rows is 1P; 12 columns are arranged in the longitudinal direction, and the transverse distance between the first group and the second group, the transverse distance between the third group and the fourth group, the transverse distance between the fifth group and the sixth group, the transverse distance between the seventh group and the eighth group, the transverse distance between the ninth group and the tenth group and the transverse distance between the eleventh group and the twelfth group are 1P all the time; and based on the first group, the distances between the first group and the third, fifth, seventh, ninth and eleventh groups are as follows: L21=(1+6 / 8)P, L22=(5+4 / 8)P, L23=(12+5 / 8)P, L24=(16+3 / 8)P, and L25=(18+1 / 8)P correspondingly. According to the printing needle arrangement way comprising the 48 needles in the 12 groups, it is ensured that only two groups of printing needles come out during each printing, printing efficiency is ensured, multiple groups of needles are prevented from coming out at the same time, and meanwhile the purpose of reducing the printing noise to the lowest is achieved.

Description

technical field [0001] The invention relates to the technical field of printing, in particular to a needle output arrangement method which improves printing efficiency and reduces printing noise. Background technique [0002] The dot matrix printer realizes printing by hitting the ribbon when the printing needle is ejected. Due to the high frequency of needle ejection impact, there will be a lot of noise during the working process, which is the flaw of the dot matrix printer. [0003] Such as figure 1 , 2 As shown, the needle arrangement of the existing print head is generally 24 needles in 6 groups, and the 24 needles are sequentially numbered as 1, 2, 3...24. In order to simplify and facilitate understanding, the needle numbered 1 is simplified as "1 ", the needle numbered 2 is simplified to "2"... and so on. Such as figure 1 As shown, where 11, 13 is a group, recorded as the first group, 7, 9, 15, 17 is a group, recorded as the second group, 1, 3, 5, 19, 21, 23 is a g...

AI Technical Summary

Problems solved by technology

When the printing needles of 11 and 13 are in the needle-out position, the remaining 5 groups of printing needles are also in the needle-out position. When the printing needles of 11 and 13 are in the needle-out position, the remaining 5 groups of printing needles The needles will also be ejected at the same time, so the print head in this arrangement has no way to avoid the situation that multiple sets of needles are ejected at the same time, that is, it will cause a lot of noise during the printing process.

And because the number of needles in each group is less, the printing efficiency of 6 groups of 24 needles is low

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