Printing apparatus and method of detecting registration deviation
US6390588B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 20, 1999 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Jul 20, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J29/393
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
According to the position information, based on the encoder signal, about the print heads during movement which is obtained in connection with the print start timing of the signal used by the print heads to print the registration adjust patterns, the amount of registration deviation between the print heads are determined. Then, the differences between the print start time of the signal and the leading and trailing edge of the encoder signal are determined for each print head. The difference between these differences is adjusted as the deviation amount between the heads to adjust the ejection timing of each head. This can correct the print position deviations between the plurality of the heads with high precision without being influenced by variations in the head movement speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.