Patent ID: 7374272
Filing Date: 2008-05-20
Classification: B41J

Abstract:
1. A liquid ejecting apparatus comprising: a head member having a nozzle and a liquid-ejecting unit that ejects liquid in the nozzle, 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, a built-in slide-rotator type of positive displacement pump provided in the suction way, a state-quantity recognizing part that recognizes a state quantity related to a dry state in an inside of the built-in slide-rotator type of positive displacement pump, a standard-state-quantity setting part in which a standard state quantity is set, the standard state quantity being a standard for carrying out a preliminary operation for wetting the inside of the positive displacement pump, a judging part that judges whether the inside of the positive displacement pump is dry or not, by comparing the state quantity recognized by the state-quantity recognizing part with the standard state quantity set in the standard-state-quantity setting part, and a preliminary-operation carrying-out part that carries out the preliminary operation for wetting the inside of the positive displacement pump, when it is judged by the judging part that the inside of the positive displacement pump is dry.