JPS6450940U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a diagram showing an example of the inventive arrangement, Figure 2 is a diagram showing a conventional wire arrangement, Figure 3 is a diagram showing the relationship between the number of simultaneously operating pins and printing stress, and Figure 4 is a wire drive current waveform. A waveform diagram showing an example, FIG. 5 is a diagram showing the relationship between the number of simultaneously operating pins and demagnetizing current,
FIG. 6 is a diagram showing the frequency of the number of simultaneously operating pins when printing JIS level 1 kanji characters. 1 ₁ to 1 ₂₄ ...Wire guide hole, 2...Tip guide.

Claims (1)

[Claim for Utility Model Registration] In the wire arrangement of the wire dot printing head, the wires are divided into small groups of three wires each, and the sets of these small groups are divided into one corresponding to the upper half and the lower half of the dot matrix. Corresponding wires are classified into two large groups, the three wires in each small group are arranged in tandem, and within each large group, the small groups are shifted by an integral multiple of the dot pitch, and between each large group, each A wire arrangement of a wire dot print head, characterized in that small groups included in the wire dot print head are staggered from each other by an integral multiple of the dot pitch plus a half pitch.