Ink jet recording apparatus with ambient temperature detecting means for providing a signal to drive control means responsive to a recording-density data signal
US4860034A · kind A · utility
49Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1988 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | Mar 30, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/072
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The driving frequency of a head is changed in conformity with temperature, and density data is converted into an optimum head driving voltage in conformity with temperature, whereby the discharge driving frequency and driving voltage of the recording head become optimum under any temperature condition, and thus recording of high quality is ensured the since irregularities caused by the temperature variation of the recording head are eliminated. The driving voltage is set by a drive control circuit that includes a plurality of limiters, one of which is chosen in accordance with ambient temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.