Patent Number: 6,254,291

Title: Dot-impact printing head control apparatus

Abstract: A printing head control apparatus 10 is used for a dot-impact printer in which a dot is formed on a paper set on a platen via an ink ribbon 16 with an impact force applied by a pin 18. The printing head control apparatus 10 comprises: a dot classifier for classifying into a normal dot b1 and a final dot b2 the dots constituting a print data "a" supplied from an upper-node apparatus 20; and a printing head drive controller 26 for supplying to the printing head 24 a normal dot print drive signal c1 and a final dot print drive signal c2 for the normal dot b1 and the final dot b2, respectively.

Inventors: Sakano; Katsuji (Yamagata, JP)

Assignee: NEC Corporation

International Classification: B41J 2/30 (20060101); B41J 2/23 (20060101); B41J 2/22 (20060101); B41J 002/22 ()

Expiration Date: 07/03/2018