PROBLEM TO BE SOLVED: To enable an operation state of an x-ray imaging device to change, even when an operation unit installed in the x-ray imaging device body is hard to be operated.SOLUTION: An x-ray imaging device 101 includes: a communication unit 203 for performing communication with another apparatus communication state monitoring means for monitoring a state of communication with another apparatus by the communication unit 203 and shifting means for, when it is determined that the communication means does not perform communication with another apparatus for a predetermined time by the communication state monitoring means, shifting to a function stop state in which functions are stopped excepting a function for monitoring start conditions.COPYRIGHT: (C)2014,JPO&INPIT【課題】X線撮像装置本体に設けられた操作部が操作しにくい様な場合においてもX線撮像装置の動作状態を変更できるようにする。【解決手段】X線撮像装置101は、他の機器との通信を行う通信部203と、通信203による他の機器との通信状態を監視する通信状態監視手段と、通信状態監視手段により、前記通信手段が所定の時間にわたって他の機器と通信を行っていないことを検出した場合には、起動条件を監視する機能を残して機能を停止する機能停止状態に遷移させる遷移手段とを有する。【選択図】図1