Patent ID: 7671759

Claim:
A remote control unit which is operated by a battery to remote-control operation start and operation stop of an apparatus main body, comprising: communication means for communicating with the apparatus main body; operation instructing means for instructing the operation start and the operation stop of the apparatus main body according to operation by user; clocking means; time setting means for setting a clocking initial value of the clocking means according to operation by the user; mode switching means for switching according to operation by the user an operation instructing mode in which the instruction by the operation instructing means is possible and the setting of the clocking initial value by the time setting means is impossible and a time setting mode in which the operation instruction by the operation instructing means is impossible and the setting of the clocking initial value by the time setting means is possible; operation control means for transmitting a control signal to instruct actuation or de-actuation with respect to the apparatus main body, when the operation instructing means is operated; and timer control means for setting timer operation to perform the actuation or the de-actuation of the apparatus main body, when a clocked time by the clocking means indicates a predetermined timer set time, wherein the remote control unit further comprises forced mode setting means for automatically setting the time setting mode without depending on the mode switching means, when the battery is installed.