| 摘要 |
A roll paper print unit 120 processes roll paper. A first interface 110 receives commands transmitted from a POS terminal 20. A second interface 115 transmits a command received by the first interface 110 to a printer 200 that performs a same process as the roll paper print unit 120. A control unit 150 controls processing by the roll paper print unit 120, and transmitting a command to the printer 200 through the second interface 115, based on the received command. When the received command is a preset command, the control unit 150 controls the second interface 115 to transmit the preset command to the printer 200.
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