One-pass Printing Challenges in Large Format Printers

Abstract

In the search of breakthrough productivity, HP has developed a new print technology capable of printing an image in a single continuous paper movement. This is possible thanks to an array of nozzles covering the full paper width. However, the big challenge of this technology is the print quality. Scanning Printer technology has been in use for long enough that most of its inherent problems have been understood and solved. PageWide technology is relatively new and there are a lot of printing challenges to solve. This paper will cover the aspects affecting print quality in one pass printing such as the impact of distance between modules, printhead to paper spacing and media drive, with focus on the position of the drop on the media. These critical parameters have been modeled and used to predict the position error of any single drop on the paper.