Patent ID: 8339632

Claim:
A fiscal printer comprising: a fiscal memory for storing and holding fiscal information; a real-time clock; a fiscal control circuit board that is removably mounted in the printer; and a detection circuit that detects one of (a) removal of the fiscal control circuit board from the printer and (b) removal of the fiscal memory from the fiscal control circuit board; wherein the fiscal memory and the real-time clock are mounted on the fiscal control circuit board; and the real-time clock includes: an input terminal to which a detection signal from the detection circuit is input; and a storage unit that, when the detection signal indicating that one of (a) the fiscal control circuit board was removed from the printer and (b) the fiscal memory was removed from the fiscal control circuit board is input to the input terminal of the real-time clock, stores data indicating one of (a) the removal of the fiscal control circuit board and a time when the detection signal was input in association with each other and (b) the removal of the fiscal memory and a time when the detection signal was input in association with each other; the fiscal printer further comprising: a backup battery power supply that is mounted on the fiscal control circuit board; and a first connector part mounted on the fiscal control circuit board that is disconnectably electrically connected to a second connector part mounted on a inter control circuit board; wherein the fiscal memory is configured to be accessible only through the first connector part; and the detection circuit includes a detection line on the fiscal control circuit board, the detection line having one end connected through the second connector part to a ground line on the printer control circuit board, and the other end of the detection line connected to the terminal of the real-time clock and to a high potential side of the backup battery power supply through a pull-up resistance.