Shaped wiper for inkjet cleaning
US8979244B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2013 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Nov 3, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/16538
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Inkjet head cleaning and storage includes cleaning an orifice plate by inserting a tip of a shaped wiper into a slit of a printing mask, such that one or more shoulders of a handling end of the shaped wiper are in contact with respectively one or more edges of the slit. The shoulders of the shaped wiper facilitate the tip applying a predetermined pressure to an orifice surface during wiping. Preventing sediment buildup during extended periods of non-printing includes placing at least the orifice plate of the printing head in a protecting liquid that avoids evaporation of the volatile liquid from the nozzles. An innovative “night plate” can be used to seal the slit of a printing mask and ink purged from the printing head used to fill a gap between the printing head and the mask, thereby covering at least the orifice plate with the purged ink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.