Coarse and fine electronic bow correction for a writer
US6819351B2 · kind B2 · utility
6Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2001 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Jul 14, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K15/1247
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Increasing the linearity of elements within a printhead by applying a coarse electronic adjustment to rearrange the electronic printing of data into the proper pixel line and then applying a fine electronic adjustment to reduce the bow error to fraction of a pixel line. Delays of exposure control signals are used by the fine electronic adjustment to correct linearity by a fraction of a pixel line. The delays can be repeated to multiply the number of delays available and increase the linearity resolution. The delays can also be averaged between odd and even rows of elements to increase apparent resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.