A HOME AND OFFICE PAGE-WIDE-ARRAY INKJET PRINTER
NOVO was a major development partner for the first commercialized page-wide-array printer—a significant advancement in inkjet printing technology. The product requirements NOVO received included borderless printing on a variety of supported media and use of five independent fluidic channels in a CMYKK arrangement. The printer won awards as one of the fastest and most cost-effective printers available on the market.
THE TECHNICAL AND DESIGN CHALLENGES
The client gave NOVO a prototype printing mechanism with the request to prepare it for mass production and commercialization. However, NOVO’s initial testing quickly uncovered significant problems such as color contamination between closely spaced nozzles and excessive generation of aerosol mists. Although not part of NOVO’s original task on this project, NOVO’s team was able to study, understand, and resolve these problems through a combination of mechanical and fluidic changes in the print zone before completing the originally assigned task of scaling up for production.
THE ENGINEERING BEHIND GREAT PRODUCTS
To resolve issues of color contamination, NOVO designed a variety of solutions that reduced the volume of contamination and then drove any residual contamination into the black channel, thereby effectively hiding it. These included:
- Reordering of the ink colors to minimize defect visibility
- Resetting of color profiles
- Adjustment of the ink reservoir positions to generate pressure differentials that selectively drove lighter ink colors towards darker ones
- Manipulation of the surface tension of different inks using surfactants