Abstract: A developer container including: a container body that contains developer to be supplied to an apparatus body and is capable of being attached to and removed from the apparatus body, the container body having a discharge port through which the developer is discharged; an opening-and-closing member that opens and closes the discharge port in response to relative attachment and removal of the container body to and from the apparatus body; a first elastic member that is provided so as to surround the discharge port and seals between the container body and the opening-and-closing member; and a second elastic member that comes into contact with a leading end of the opening-and-closing member in a direction in which the opening-and-closing member moves when the discharge port is closed.

Abstract: A developer container including: a container body that contains developer to be supplied to an apparatus body and is capable of being attached to and removed from the apparatus body, the container body having a discharge port through which the developer is discharged; an opening-and-closing member that opens and closes the discharge port in response to relative attachment and removal of the container body to and from the apparatus body; a first elastic member that is provided so as to surround the discharge port and seals between the container body and the opening-and-closing member; and a second elastic member that comes into contact with a leading end of the opening-and-closing member in a direction in which the opening-and-closing member moves when the discharge port is closed.

Abstract: An interconnection control method in a cordless telephone system having a connection unit connected to a subscriber line and a plurality of radio telephone sets connected through a radio communication circuit to the connection unit. Each of the radio telephone sets in a signal transmits, in a signal transmission mode, a calling signal containing group identification information and individual identification information. The connection unit, only when the received group identification information coincides with a predetermined content, returns a calling answer signal containing group identification information and individual identification information of the transmitting radio telephone sets and then establishes a speech channel between the connection unit and the other party telephone set.

Abstract: A cordless telephone system includes a connector connected to a subscriber telephone line and at least one radio telephone set through a radio channel to establish or hold a communication channel between the ratio telephone set and a subscriber. The connector includes a control unit incorporating a timer. The control unit sets the system in a self hold state in which the radio channel is kept connected or a complete hold state in which the radio channel is disconnected on the basis of a hold signal from the radio telephone set, the presence/absence of a radio reception signal within a predetermined period of time preset in the timer, and the type of reception signal.

Abstract: A radio telephone system includes a base station connected to a telephone exchanger and a plurality of mobile stations connected to the base station through a radio channel including a control channel and communication channels. The base station includes a transmitter/receiver, a receiver, and a controller. In a stand-by mode, the controller sets a channel of the transmitter/receiver to the control channel to receive a calling signal from each mobile station and sets a channel of the receiver to a given communication channel to monitor vacancy of the communication channels.

Abstract: A portable unit that may be called from a base station through a radio control channel by a succession of terminating call signals that is sent through the control channel from the base station to the portable unit for a first or restricted time duration (T.sub.1), selected in consideration of a battery saving period of a battery saving operation carried out in the portable unit. Within the battery saving period, the portable unit is put into transient active and inactive states during a first time interval and a second time interval, respectively. Selection is made so that the first time duration is longer than the second time interval to receive at least one of the terminating call signals within the first time duration in the portable unit. The base station monitors an acknowledgement signal for a second time duration (T.sub.2) after the lapse of the first time duration and interrupts the control channel when the acknowledgement signal is not received within the first and the second time durations.

Abstract: A portable unit that may be called from a base station through a radio control channel by a succession of terminating call signals that is sent through the control channel from the base station to the portable unit for a first or restricted time duration (T.sub.1), selected in consideration of a battery saving period of a battery saving operation carried out in the portable unit. Within the battery saving period, the portable unit is put into transient active and inactive states during a first time interval and a second time interval, respectively. Selection is made so that the first time duration is longer than the second time interval to receive at least one of the terminating call signals within the first time duration in the portable unit. The base station monitors an acknowledgement signal for a second time duration (T.sub.2) after the lapse of the first time duration and interrupts the control channel when the acknowledgement signal is not received within the first and the second time durations.