Compensation for heat accumulation in a thermal head
US4574293A · kind A · utility
42Cited by
1References
57Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 1984 |
| Grant date | Mar 4, 1986 |
| Priority date | — |
| Expiry date | May 16, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/365
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Electric energy to be applied to each heating element of the thermal head is controlled by taking into account the energy applied to the heating element one scan period before as well as the effect of heat accumulated in heating elements surrounding the heating element, and then the energy thus controlled is recorrected taking into consideration the temperature change in a thermal head base plate or the change in printing time between lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.