Patent · US Expired

Thermal recording method and apparatus

US4638329A · kind A · utility

11Cited by
2References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 29, 1985
Grant dateJan 20, 1987
Priority date
Expiry dateAug 29, 2005

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41J2/355
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A thermal recording method and apparatus for printing picture information with use of a thermal head, in which picture information corresponding to one unit to be printed is divided into a plurality of blocks using counters, etc., and the rate of black data contained in each of the divided blocks is detected to know the distribution of black data contained in the one unit, whereby printing is carried out with the minimum number of printing determined by the distribution of black data in the one unit.

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