Ink-jet recording apparatus having drive pulse width control dependent on printhead temperature
US5581281A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 8, 1993 |
| Grant date | Dec 3, 1996 |
| Priority date | — |
| Expiry date | Jul 8, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/04596
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink-jet recording apparatus quickly completes a preparatory driving operation, and suppresses the wasteful consumption of the ink even if the apparatus is used in a cold environment after the apparatus has been held inoperative for a long time. The ink-jet recording apparatus comprises a first storage for storing a first driving pulse width data, a second storage for storing a second driving pulse width data, and a plurality of driving pulse generating units. A data selecting unit selects either the first driving pulse width data or the second driving pulse width data according to selection data set by a dot counter control unit, and a print pulse width setting unit and the driving pulse generating units generate ink-jet print head driving pulses. A print data processing unit produces print data for driving the nozzles of the ink-jet print head. The first and second driving pulse width data is used selectively and the print data is produced according to the time for which the ink-jet recording apparatus has been held inoperative and the temperature of the ink-jet print head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.