Control unit for a serial printer

G - Physics – 06 – K

Patent

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Details

354/236.131

G06K 15/06 (2006.01) B41J 1/24 (2006.01) G05B 19/23 (2006.01)

Patent

CA 1134514

ABSTRACT OF THE INVENTION In a serial printer of the type having a carriage continu- ously moved along a printing line and supporting a type- member intermittently rotated for selecting the next char- acter being printed, a control unit is provided which per- forms an algorithm for executing a forecast calculation of the residual time missing in every moment to the type-mem- ber for positioning the character being printed. The same control unit calculates a correspondent speed of the car- riage depending on that residual time and on the position reached by the carriage on the printing line. The speed of the carriage is thereby continuously controlled from the preceding to the new printing position for causing the printing of the selected character exactly on the printing position at the maximum speed of the carriage consistent with a good print operation.

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