Method, printer and printhead driver for printing using two printheads
US6857723B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2003 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | May 13, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/51
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A first method obtains a printer having a single-printhead horizontal resolution of H dpi. Dots are printed using first and second printheads in the same print pass. The first printhead is enabled and the second printhead is non-enabled during a first portion of a carrier-movement distance equal to 1/H, and the second printhead is enabled and the first printhead is non-enabled during a second non-overlapping portion of such distance. A printer and a printhead driver for performing the first method are described. A second method obtains a printer having a single-printhead resolution of H horizontal dpi by V vertical dpi. First print data for the first printhead and second print data for the second printhead of H/2 horizontal dpi by V vertical dpi are obtained, are horizontally interlaced creating H horizontal dpi by V vertical dpi, and are printed using the first and second printheads in the same print pass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.