Method of servicing a pen when mounted in a printing device
US6517184B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2000 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Feb 18, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/16579
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of servicing a pen comprising a printhead, having a plurality of nozzles, mounted in an inkjet printing device, comprising a servicing area and a drop detector comprising the following steps performing a drop detection on the printhead to check if any of the nozzles of the printhead are malfunctioning; storing the result of the more recent drop detection operation, together with the results of the previous drop detections to keep a history of the health status of each nozzle; deciding whether or not to execute a recovery service in the servicing area to attempt to recover the current malfunctioning nozzles, based on the more recent status of the nozzles and on the history of the health status of the nozzles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.