Image recording apparatus and method of detecting ejection failure in pre-processing agent ejection nozzles in image recording apparatus
US8226201B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2009 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Sep 2, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/2146
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The ejection positions of a plurality of pre-processing agent ejection nozzles and the ejection positions of a plurality of ink ejection nozzles as seen in a direction orthogonal to the transport direction of a recording medium are in a one-to-one correspondence with each other. A controller causes the process of ejecting ink of a first color from the ink ejection nozzles onto the recording medium subjected to the ejection from the plurality of pre-processing agent ejection nozzles so as to form a failure detection printing pattern which is a printing pattern formed by providing a time lag between the processes of ejecting the ink from adjacent ones of the plurality of ink ejection nozzles. An ejection failure in the pre-processing agent ejection nozzles is detected by judging that a pre-processing agent ejection nozzle corresponding to a region where bleeding results suffers the ejection failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.