Back to results
US 5,702,190 AGranted
Dot-matrix line printer
AssigneeFujitsu Limited
InventorsOsamu Shimizu, Kazuya Harada, Shinichi Wada, Tetsuya Fujimoto, Takanari Inui
Life of this patent
Estimating the term…
Abstract
A dot-matrix line printer includes a printing shuttle which moves reciprocally to carry out a printing operation, and a balancing shuttle which moves in a direction opposite to the direction of the movement of the printing shuttle. The balancing shuttle is partly inserted in the printing shuttle so as not to interfere with the latter upon printing and so that the center of gravity of the balancing shuttle is located as close to the center of gravity of the printing shuttle as possible.
Claims4
A dot-matrix line printer comprising:
- a printing shuttle which reciprocally moves to carry out a printing operation, and a balancing shuttle which moves in a direction opposite to the direction of the movement of the printing shuttle, wherein a cross section of the printing shuttle perpendicular to the direction of movement is elongated in a first direction and a cross section of the balancing shuttle perpendicular to the direction of movement is elongated in a second direction, different from said first direction, and
- wherein the balancing shuttle is at least partly inserted in the second direction into the printing shuttle so as not to interfere with the latter upon printing, so that the center of gravity of the balancing shuttle is located as close to the center of gravity of the printing shuttle as possible.
Dependencies are inferred from the claim text.