Air supply arrangement for a printer
US6281912A · kind A · utility
251Cited by
2References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 2000 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | May 23, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14362
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A pagewidth inkjet printer which includes printhead with a plurality of print nozzles for ejecting ink drops towards a print medium. A space is defined between the nozzles and a nozzle guard with a series of apertures aligned with the nozzles. During printing operation, positive air pressure is supplied to this space, the air exiting the space through the apertures, preventing blockage by paper dust. When not printing, the air supply is closed off by air valve member and a capping member on a rotary platen contacts the printhead to maintain a closed atmosphere at the surface of the nozzles, reducing drying of ink on the nozzles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.