Method for detecting drops in printer device
US6517183B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2002 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Mar 25, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/16579
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved apparatus for checking a plurality of printer nozzles in a printer device comprises: a printer head comprising a plurality of nozzles; a device for detecting at least one droplet of ink sprayed from at least one nozzle of said plurality of nozzles; and a device for performing a sequence of measurements on a first output signal of the detecting device, wherein a determination of performance of the print head is made by analyzing detected output signals produced by one or a plurality of ink droplets passing the detector, the one or plurality of ink droplets containing a predetermined minimum volume of ink, and the sequence of measurements being measured at a plurality of time intervals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.