Vacuum media drum transport system with shutter for multiple media sizes
US9944094B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2017 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Apr 7, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J13/226
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A media transport system includes a drum with a plurality of rows of holes, a vacuum plenum, and a shutter. The vacuum plenum is positioned within the drum at a position opposite a printhead and the shutter is configured for movement in a cross-process direction. Each row of holes in the drum includes at least one inter-copy gap. The shutter includes a solid member having at least one aperture in it. The shutter is moved to a position so the aperture is aligned with a row of holes and the solid portion of the shutter prevents a flow of air through the vacuum plenum from the holes in other rows of holes not aligned with the aperture in the shutter and the inter-copy gaps in the row of holes aligned with the aperture selectively prevents air flow to the vacuum plenum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.