Patent · US Expired

Thermal printer

US5172137A · kind A · utility

19Cited by
1References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 26, 1991
Grant dateDec 15, 1992
Priority date
Expiry dateNov 26, 2011

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41J25/312
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

A thermal head in a thermal printer is biased by a plurality of springs which are provided between the thermal head and stopper of the movable shafts, respectively. The distances between the thermal head and the stoppers are commonly adjusted by a rotating shaft through gears fixed to the rotating shaft and worms formed on the movable shafts, thereby subtly adjusting the thermal head biasing force of the springs in accordance with the condition of a sheet to be used.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.