Controlling a printing system using encoder ratios
US9387670B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2015 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Jun 26, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/2146
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for adjusting an encoder pulse count delay in a printing system for printing on a continuous web of print media using first and second printheads. First and second encoders are provided at different positions along the media transport path. An initial encoder pulse count delay is provided for use in printing with the second printhead. An initial ratio of the first encoder pulse rate to the second encoder pulse rate is determined. At a subsequent time a subsequent ratio of the first encoder pulse rate to the second encoder pulse rate is determined. An adjusted encoder pulse count delay is determined by adjusting the initial encoder pulse count delay responsive to the initial ratio and the subsequent ratio and used to control printing by the second printhead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.