Method of and devices for the compensation of...

B - Operations – Transporting – 41 – F

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101/41

B41F 17/00 (2006.01) G06K 15/12 (2006.01)

Patent

CA 1206372

14 Method of and devices for the compensation of synchronization errors in the transport of the record carrier in non-impact matrix printers. ABSTRACT: In non-impact printers, notably line printers, in which the in- dividual lines of print are formed by the successive printing of pic- ture lines, synchronization errors in the transport of the record carrier have an adverse effect on the printed picture. The invention provides a method for neutralizing such synchronization errors, without influ- encing the transport of the record carrier and without changing the printing frequency of the printing elements. To this end, a control value is derived from the difference between the actual transport speed and the predetermined transport speed of the record carrier. This control value shifts the printing of a picture line in its predetermined printing zone without changing the printing frequency of the picture lines.

428002

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