Vibration Detection in Liquid Ejecting Device Guide Units

The patent applies dimensional change by attaching the detection unit to both the first surface and the second surface (opposite surface) of the holding unit. This creates a multi-dimensional detection arrangement where vibration sensors are positioned on opposite sides of the component, enabling detection of vibrations from different spatial dimensions and improving overall detection precision without expanding the physical footprint.

The patent implements local quality by strategically positioning detection units at specific locations on the holding unit surfaces. Rather than uniformly distributing sensors, the detection units are placed at locations that maximize their ability to detect guide unit deterioration vibrations, creating localized high-precision detection zones where it is most needed.

The patent merges multiple detection units on opposite surfaces of the holding unit to work together as a unified detection system. By combining the detection capabilities of sensors positioned on both the first and second surfaces, the system achieves enhanced sensitivity that can detect the weak vibrations generated by deteriorated guide units, which would be undetectable by a single sensor.

The patent utilizes mechanical vibration detection by positioning vibration sensors on the holding unit to directly detect the mechanical vibrations generated by the deteriorated guide unit. The sensors are strategically placed to maximize their sensitivity to the specific vibration frequencies and amplitudes produced by guide unit deterioration, enabling reliable detection of these subtle mechanical signals.