Temperature sensing of heater points in thermal print heads by resistive layer beneath the heating points
US5196865A · kind A · utility
0Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1991 |
| Grant date | Mar 23, 1993 |
| Priority date | — |
| Expiry date | May 20, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/375
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Beneath its line of heater points, the print head includes a film of thermoresistive material which is used for sensing temperature in the proximity of the heater points, thereby making it possible to obtain a signal which can be used quickly in regulating the quantity of energy delivered to each heater point, thereby making it possible to operate the points at a higher rate because they are subjected to excitation which is regulated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.