Recording head system for ink jet recording apparatus and method for driving the same
US6102510A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1992 |
| Grant date | Aug 15, 2000 |
| Priority date | — |
| Expiry date | Dec 31, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K15/107
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A recording head system for an ink jet recording apparatus having a full-line recording head. The recording head is divided into a variable number of blocks. The recording ratio of each block (that is, the ratio of the number of ink ejecting elements to be driven in a block in accordance with recording data to the total number of the ink ejecting elements in the block) is compared with a reference recording ratio. When the recording ratio is greater than the reference recording ratio, the interval between the drive timing of a block and that of the next block is lengthened, or vise versa. This is performed by controlling the enable timing of each block by D-flip-flops, AND gates and delay circuits. Unevenness of recorded images resulting from the fluctuation in periodic ink pressure can be ameliorated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.