A liquid ejecting head in which a flow path substrate having a communication hole communicating with a nozzle and a pressure chamber substrate having a space that is a pressure chamber are at least laminated includes: an actuator having an active section that is interposed between electrodes and applies pressure to the pressure chamber. It is understood that shower surfaces are typically formed from a design material, such as tile or stone. Since the surrogate markers are employed as a percent change in status, virtually any indicator can be used. The semicircular closing plate sections are thinner than the enlarging diameter tubular section and have bellows-like configurations with projections and depressions. The frequency selectivity in the device control provides not only a path to achieving reliable and safe operation of drug delivery but also potential applications for selective delivery of multiple drugs. The printer drives the supply motor in a first operating mode in a slack removal operation that rewinds the recording paper onto a paper roll 2, and stops driving the supply motor when the tension lever moves from a slack-side first position toward a second position.