Printhead cleaning methods
US11007784B2 · kind B2 · utility
1Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2017 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Jul 31, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/16564
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
With the purpose of providing an improved cleaning mechanism that accomplishes better results and that may be used in thermal and piezoelectric printing, it is dis-closed a method for cleaning a printhead comprising: moving a wiper along a plurality of nozzles of the printhead; and pressurizing the nozzles within the printhead, the pressurization of each nozzle causing ink to be expelled in an expelling direction; wherein a controller is to detect the position of the wiper and to selectively pressurize at least some of the nozzles for which the position of the wiper corresponds to its expelling direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.