LINE PRINTER SYSTEM AND METHOD OF OPERATION WITH MICROPROCESSOR CONTROL

    公开(公告)号:CA1122476A

    公开(公告)日:1982-04-27

    申请号:CA365264

    申请日:1980-11-21

    Applicant: IBM

    Abstract: A printer system comprises a belt printer mechanism controlled by a stored program digital microprocessor to print lines of data on a print medium. Selective operation of a linear array of print hammers, paper feeding, data conversion and arranging in scan/subscan order are performed by the microprocessor. The fire data for operating hammers is precalculated and arranged in scan/subscan order during the print medium feeding interval with printing occurring immediately at the first print scan after print medium motion in which one or more desired characters become aligned with print hammers. An indirect addressing technique which eliminates sorting is used to arrange the print position fire data in scan/subscan order. EN979012

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