Method for correcting a recording head, correction apparatus therefor, recording head corrected by use of such apparatus, and recording apparatus using such recording head
US6377358B1 · kind B1 · utility
11Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1998 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Dec 24, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/21
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for correcting a recording head is provided to solve the problems of density unevenness in recorded images. The density comparison is made with the reference density for a predetermined unit in the density distribution of an image recorded by the application of n kinds of signals. Then, one of the n kinds of signals which is close to the reference density is selected. The properties of the signal thus selected are transmitted to the recording head together with the correction data, hence correcting density unevenness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.