Inkjet printing apparatus and preliminary discharge control method of said apparatus
US7775622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2009 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Mar 3, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/16526
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In an inkjet printing apparatus which performs printing on a printing medium using an inkjet printhead for discharging ink, preliminary discharge, where ink discharge irrespective of printing is performed at the time of print execution, is performed under a predetermined condition. The printing apparatus includes a control section and a setting section. The control section executes a preliminary discharge by the printhead, which has a plurality of discharge orifices, before a predetermined time has elapsed since a latest preliminary discharge, in printing of an image, and the setting section sets the predetermined time. The setting section obtains an elapsed time after executing the preliminary discharge until a discharge failure occurs in any one of the plurality of discharge orifices, and sets the elapsed time as the predetermined time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.