System and method for test pattern formation during three-dimensional object printing
US10052823B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2014 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Jul 30, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/772
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A three-dimensional object printer ejects drops of a build material from a plurality of ejectors in a first printhead to form an object on a first region of a member and ejects drops of a support material from a plurality of ejectors in a second printhead to support the object on the first region of the member. The second printhead ejects drops of the support material onto a second region of the member that is separate from the first region to form a substrate layer. The first printhead ejects drops of the build material onto the substrate layer to form a printed test pattern. An image sensor generates image data of the printed test pattern to identify an inoperable ejector in the first printhead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.