| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a function of measuring physical quantities, such as acceleration applied to a photoreceptor drum, temperature, and humidity, in addition to basic functions that the photoreceptor drum has. <P>SOLUTION: The photoreceptor drum 142 is provided with a wireless acceleration sensor 50. This acceleration sensor 50 does not require a lead wire for connection with a transmitter receiver 20, and prevents trouble such as a contact defect by the lead wire, an increase in electric resistance, etc. The acceleration sensor 50 measures the acceleration of the photoreceptor drum 142 directly, so the rotational state of the photoreceptor drum can be detected directly to improve measurement precision. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
