Liquid ejecting apparatus
US7374272B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2005 |
| Grant date | May 20, 2008 |
| Priority date | — |
| Expiry date | Aug 5, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/16523
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid ejecting apparatus includes: a head member having a nozzle and a liquid-ejecting unit; a main controlling part that drives the liquid-ejecting unit based on ejecting data; a capping member relatively movable between a position away from the head member and a position in contact with the head member; a suction way communicated with an inside of the capping member; and a built-in slide-rotator type of positive displacement pump provided in the suction way. A state-quantity recognizing part recognizes a state quantity related to a dry state in an inside of the positive displacement pump. A judging part judges whether the inside of the positive displacement pump is dry, by comparing the state quantity with a standard state quantity. A preliminary-operation carrying-out part carries out a preliminary operation for wetting the inside of the positive displacement pump, when the inside of the positive displacement pump is dry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.