Patent ID: 7686408
Filing Date: 2010-03-30
Classification: B41J

Abstract:
1. An electrically-chargeable element control device, comprising: (a) a plurality of coils having respective one ends that are connected to a power supply; (b) a switch circuit that is connected to an other end of each of a plurality of the coils, and that is connected to one electrode provided on each of a plurality of electrically-chargeable elements; (c) a controller that causes a selected coil to connect to an electrically-chargeable element to be charged and discharged by controlling the switch circuit depending on the number of the electrically-chargeable elements to be charged and discharged, and that causes the electrically-chargeable element to be charged and discharged to charge and discharge with resonance; and (d) an other electrically-chargeable element that is connected in parallel with a plurality of the electrically-chargeable elements and that is charged and discharged regardless of the presence or absence of the electrically-chargeable element to be charged and discharged, wherein the controller comprises a binary counter to count the number of the electrically-chargeable elements to be charged and discharged, wherein the controller increases a counted value of the binary counter by a value equivalent to the other electrically-chargeable element, and wherein the controller controls the switch circuit depending on the counted value of the binary counter.