Controlling nozzles in a print head
US10384445B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2018 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Jun 7, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/16573
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In some examples, a printing system comprises a controller to determine, during a print operation, first status information that relates to a condition of a first nozzle set of the print head, and second status information that relates to a condition of a second nozzle set of the print head. In response to determining from the first status information that a number of malfunctioning nozzles in the first nozzle set does not exceed a first threshold value and determining from the second status information that a number of redundant nozzles in the second nozzle set exceeds a second threshold value, the controller is to cause the second nozzle set including the redundant nozzles of the print head to be operated in place of the first nozzle set to continue the print operation. In response to determining from the first status information that that the number of malfunctioning nozzles in the first nozzle set exceeds the first threshold value, the controller is to interrupt the print operation and instructing a maintenance operation on the print head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.