Printing apparatus and printing method
US8465116B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2010 |
| Grant date | Jun 18, 2013 |
| Priority date | — |
| Expiry date | Jun 4, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J29/38
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a printing apparatus and a printing method, the frequency of an operation of detecting an inappropriate ejection state of each ejection port is increased, while allowing a decrease in throughput to be suppressed. The printing apparatus includes a first ejection state sensing unit for carrying out an ejection state sensing process in which determination of whether or not ejected droplets are normal is executed, during a single process, on all the ejection ports formed in the print head. The printing apparatus further includes a second ejection state sensing unit for carrying out the ejection state sensing process on the ejection ports in a part of a plurality of ejection port groups into which the plurality of ejection ports formed in the print head are divided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.