Patent ID: 9086312
Filing Date: 2015-07-21
Classification: B41J,G01F

Abstract:
1. A liquid consumption device comprising: a detecting section including a light emitting section and a light receiving section; a plurality of liquid reservoirs configured to store liquid, each of the plurality of the liquid reservoirs having a prism therein, which is configured to reflect light emitted from the light emitting section corresponding to a remaining state of the liquid; and a control section, the control section being configured to determine an adhesion state of air bubbles in the prism with respect to each of the plurality of the liquid reservoirs, and determine whether a process for air bubbles is to be conducted or not based on a signal of light reception results obtained by receiving reflected light from the prism by the light receiving section, the process for the air bubbles being a process in which the control section controls adjusting a light emission amount of the light emitting section based on the signal of light reception results with respect to at least one of the plurality of the liquid reservoirs in which the control section determines that no air bubbles adhere to the prism, the control section being further configured to determine that the process for air bubbles is to be conducted in a case where the control section determines that air bubbles adhere to the prism with respect to at least one of the plurality of the liquid reservoirs, the control section being further configured to conduct peak detection of the signal of light reception results in each of a first measurement region and a second measurement region set based on a detection position of the prism, and determine whether the process for air bubbles is to be conducted or not based on information regarding a distance between a first peak detected in the first measurement region and a second peak detected in the second measurement region.