![]() ![]() ![]() The entire print head is moved horizontally in order to print a line of text, striking the paper several times to produce a matrix for each character. Each pin is attached to some sort of actuator, a solenoid in the case of Centronics, which can pull the pin forward to strike a ribbon and the paper. Centronics had introduced the first successful low-cost seven-wire print head, which used a series of solenoids to pull the individual metal pins to strike a ribbon and the paper.Ī dot matrix print head consists of a series of metal pins arranged in a vertical row. In the 1970s, Centronics developed the now-familiar printer parallel port that soon became a de facto standard. An IEEE 1284 36-pin female on a circuitboard ![]()
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December 2022
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