Printing point offset correction control method and printing device thereof

Abstract

In the printing dot shift correction control method of a printing apparatus performing printing by reciprocally moving a linear shuttle apparatus loaded with a printing head, a position detecting means for detecting the position data of the shuttle apparatus, a drive means driving the printing head so as to apply printing to paper and a control means for forming correction quantity for correcting the shift of a printing dot are provided. The control means forms the correction quantity corresponding to the acceleration or deceleration state of the shuttle apparatus when it is judged that the shuttle apparatus is in an acceleration or deceleration state during reciprocal movement from the position data detected by the position detecting means and controls the drive means on the basis of the correction quantity so that the drive means drives the printing head to a position same to a position where the printing head performs printing when the shuttle apparatus is in an equal speed state during reciprocal movement.

Description

technical field [0001] The present invention relates to a printing dot offset correction control method, in particular to a printing dot offset correction control method for correcting printing timing of a printing device with a linear reciprocating device to eliminate dot offset. Background technique [0002] A linear reciprocating device capable of printing multiple dots at a time by arranging a plurality of print heads in parallel is mounted on a high-speed printing device. [0003] At the time of printing, synchronously with the feeding of the printing paper contained in the main body of the printing device, the linear reciprocating device continuously repeatedly performs reciprocating motion in a direction perpendicular to the paper feeding direction. Since the linear reciprocating device continuously repeats the reciprocating motion, the speed of the linear reciprocating device changes in a sinusoidal manner as shown in FIG. 10 . [0004] Moreover, in order to detect ...

AI Technical Summary

Problems solved by technology

[0013] In this way, in the existing printing device, when printing is performed in the acceleration zone d1 and deceleration zone d2 of the reciprocating device while the printing speed is increased unchanged in the printing area a, printed dots are shifted, resulting in a decrease in printing quality.

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