Inkjet printing apparatus and preliminary discharge control method of said apparatus
US7517044B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2005 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | Aug 10, 2025 |
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 to obtain information regarding a discharge state of the printhead. Based on the obtained information, an execution condition of the preliminary discharge is controlled. By virtue of this control, an execution condition (parameter) of the preliminary discharge can appropriately be controlled in accordance with the discharge state of the printhead, in which the ink drying state and the increased viscosity state of ink vary depending on individual differences, usage environment, usage histories (durability) and so on.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.