Method of controlling heaters in a continuous ink jet print head having segmented heaters to prevent terminal ink drop misdirection
US6820971B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2002 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Nov 3, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/032
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for timing a deflection correcting electrical pulse relative to operational pulses of an asymmetric thermal droplet deflector of a continuous ink jet printer having nozzles, including the steps of generating a line image data with image data values corresponding to the nozzles, the image data values being indicative of desired pixel graytone levels for the nozzles, comparing the image data values to reference values, generating a serial bit stream in the form of a serially arranged bits based on the comparison of the image data values to the reference values, and producing an actuation value that times the deflection correcting electrical pulse in the serial bit stream when the image data value is equal to the reference value being compared to. The deflection correcting electrical pulse is timed to the actuation value in the serial bit stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.