Abstract: A control device of a printer can delete unnecessary data left in the printer when processing is interrupted without relying on user intervention. A control device of a printer that prints according to print data has a transmission monitor unit that sends the print data to the printer. Based on the status of a storage unit of the printer, the transmission monitor unit sends a command to delete identical data from the storage unit to the printer before sending the print data to the printer.

Abstract: An information processing device having plural control units appropriately executes an arbitration process when a control unit is hibernating (in power-saving mode) and transmits data correctly to an external device. The information processing device has a first CPU and a second CPU; a first memory embedded in a semiconductor chip including the first CPU and second CPU; and a second memory disposed externally to the semiconductor chip. The first CPU executes an arbitration process according to the type of event that occurred when the first CPU is in a first state, the second CPU and the second memory are in a second state different from the first state, and an event requiring sending data from the first memory to the second memory occurs.

Abstract: A printing device runs a process that uses resources efficiently and is compatible with configurations having multiple reception units. The printer 11 has a first immediate execution command manager 202 that monitors if an immediate execution command was stored in a first receive buffer 24, and if an immediate execution command was stored, reads and runs the immediate execution command; and a second immediate execution command manager 203 that monitors if an immediate execution command was stored in a second receive buffer 26, and if an immediate execution command was stored, reads and runs the immediate execution command.

Abstract: A printing device runs a process that uses resources efficiently and is compatible with configurations having multiple reception units. The printer 11 has a first immediate execution command manager 202 that monitors if an immediate execution command was stored in a first receive buffer 24, and if an immediate execution command was stored, reads and runs the immediate execution command; and a second immediate execution command manager 203 that monitors if an immediate execution command was stored in a second receive buffer 26, and if an immediate execution command was stored, reads and runs the immediate execution command.

Abstract: An information processing device having plural control units appropriately executes an arbitration process when a control unit is hibernating (in power-saving mode) and transmits data correctly to an external device. The information processing device has a first CPU and a second CPU; a first memory embedded in a semiconductor chip including the first CPU and second CPU; and a second memory disposed externally to the semiconductor chip. The first CPU executes an arbitration process according to the type of event that occurred when the first CPU is in a first state, the second CPU and the second memory are in a second state different from the first state, and an event requiring sending data from the first memory to the second memory occurs.

Abstract: A control device of a printer can delete unnecessary data left in the printer when processing is interrupted without relying on user intervention. A control device of a printer that prints according to print data has a transmission monitor unit that sends the print data to the printer. Based on the status of a storage unit of the printer, the transmission monitor unit sends a command to delete identical data from the storage unit to the printer before sending the print data to the printer.

Abstract: An electronic device is connectable to an external device. An interface substrate is detachably connected to a main substrate. A first interface is installed on the interface substrate, and the first interface is connectable to the external device. A second interface is installed on the main substrate, and the second interface is connectable to the external device. A selection unit selects one interface of the first interface on the interface substrate and the second interface on the main substrate. A communication unit communicates information with the external device through the interface selected by the selection unit. At least one of the first interface and the second interface is configured to detect a connection state to the external device. The selection unit selects an interface which is designated or preferentially selects an interface which detects a connection to the external device.

Abstract: Managing commands that have not been executed is simplified while maintaining a state in which real-time commands can be executed. A printer 2 has a write control unit 21A that writes received commands to a receive buffer 31, a command execution unit 21B that executes the written commands, and a real-time command execution unit 21C that executes written commands that are real-time commands. The printer 2 enters a full-buffer mode as needed by the capacity of available storage space in the receive buffer 31, and when in the full-buffer mode the write control unit 21A cyclically writes commands to an auxiliary space created in the receive buffer, and the real-time command execution unit 21C reads and executes real-time commands from the auxiliary space.

Abstract: Managing commands in a buffer is simplified while continuing to enable immediately executing real-time commands. A control unit of a printer sequentially writes commands received from a host computer to a first buffer and sequentially reads the commands. If the read command is a real-time command, the control unit executes the command. If the read command is a normal command, the control unit writes the command to a second buffer without executing the command from the first buffer. The control unit sequentially reads and executes normal commands written to the second buffer.

Abstract: A recording device is connectable to a host computer and performs recording on the basis of received data including commands, received from the host computer. A receiving buffer stores therein the received data received from the host computer. A command detection section reads the received data stored in the receiving buffer while scanning the receiving buffer with a first read pointer to detect the commands included in the received data. A command execution section processes the commands detected by the command detection section in a stored order of the commands in the receiving buffer. An immediate processing command detection section reads the received data stored in the receiving buffer while scanning the receiving buffer with a second read pointer which is provided separately from the first read pointer to detect an immediate processing command included in the received data.

Abstract: An electronic device is connectable to an external device. An interface substrate is detachably connected to a main substrate. A first interface is installed on the interface substrate, and the first interface which is connectable to the external device. A second interface is installed on the main substrate, and the second interface which is connectable to the external device. A selection unit selects one interface of the first interface on the interface substrate and the second interface on the main substrate. A communication unit communicates information with the external device through the interface selected by the selection unit. The selection unit selects an interface which is pre-designated or preferentially selects an interface which first receives a signal from the external device, between the first interface and the second interface.

Abstract: Managing commands in a buffer is simplified while continuing to enable immediately executing real-time commands. A control unit of a printer sequentially writes commands received from a host computer to a first buffer and sequentially reads the commands. If the read command is a real-time command, the control unit executes the command. If the read command is a normal command, the control unit writes the command to a second buffer without executing the command from the first buffer. The control unit sequentially reads and executes normal commands written to the second buffer.

Abstract: Managing commands that have not been executed is simplified while maintaining a state in which real-time commands can be executed. A printer 2 has a write control unit 21A that writes received commands to a receive buffer 31, a command execution unit 21B that executes the written commands, and a real-time command execution unit 21C that executes written commands that are real-time commands. The printer 2 enters a full-buffer mode as needed by the capacity of available storage space in the receive buffer 31, and when in the full-buffer mode the write control unit 21A cyclically writes commands to an auxiliary space created in the receive buffer, and the real-time command execution unit 21C reads and executes real-time commands from the auxiliary space.

Abstract: An electronic device that connects to external devices through a plurality of interfaces can operate efficiently according to the type of interface connected to the external device. An electronic device has a plurality of interfaces that can connect to a host computer; an external device interface that is connected to an external device; and an output unit that outputs data for external output received from the host computer to the external device interface. The output unit can form a plurality of output channels that output the data for external output received from the host computer to the external device interface.

Abstract: A recording device is connectable to a host computer and performs recording on the basis of received data including commands, received from the host computer. A receiving buffer stores therein the received data received from the host computer. A command detection section reads the received data stored in the receiving buffer while scanning the receiving buffer with a first read pointer to detect the commands included in the received data. A command execution section processes the commands detected by the command detection section in a stored order of the commands in the receiving buffer. An immediate processing command detection section reads the received data stored in the receiving buffer while scanning the receiving buffer with a second read pointer which is provided separately from the first read pointer to detect an immediate processing command included in the received data.

Abstract: An electronic device is connectable to an external device. An interface substrate is detachably connected to a main substrate. A first interface is installed on the interface substrate, and the first interface is connectable to the external device. A second interface is installed on the main substrate, and the second interface is connectable to the external device. A selection unit selects one interface of the first interface on the interface substrate and the second interface on the main substrate. A communication unit communicates information with the external device through the interface selected by the selection unit. At least one of the first interface and the second interface is configured to detect a connection state to the external device. The selection selects an interface which is designated or preferentially selects an interface which detects a connection to the external device.

Abstract: An electronic device is connectable to an external device. An interface substrate is detachably connected to a main substrate. A first interface is installed on the interface substrate, and the first interface which is connectable to the external device. A second interface is installed on the main substrate, and the second interface which is connectable to the external device. A selection unit selects one interface of the first interface on the interface substrate and the second interface on the main substrate. A communication unit communicates information with the external device through the interface selected by the selection unit. The selection unit selects an interface which is pre-designated or preferentially selects an interface which first receives a signal from the external device, between the first interface and the second interface.

Abstract: In a label printer in which either a peeling mode or non-peeling mode can be selected as the label dispensing mode, labels are printed and thus wasted when the operator loads the label paper into a transportation path that does not match the desired dispensing mode. This problem is solved by a label printer enabling selecting as the printing configuration either a peeling configuration for peeling printed labels from the web of label paper 11, or a non-peeling configuration in which the printed labels are not separated from the web of the label paper 11. A printing configuration selection unit 27 enables selecting which printing configuration to use. To operate in the non-peeling mode, the label paper 11 is loaded into a first paper transportation path A. To operate in the peeling mode, the label paper 11 is loaded to a second paper transportation path B. A cover unit 2 can be opened and closed to enable handling the label paper, and takes the label printer off-line when the cover unit 2 is opened.

Abstract: An output device can be quickly and easily set to the operating parameters required for a particular output process according to data received from a host device. The output device has RAM that temporarily stores the operating parameters, a memory initialization processor that initializes the volatile memory in response to a specific input, a controller that stores operating parameter values for controlling the output device into the RAM in response to one or more first commands from the host device. A second command from the host device causes a first operating parameter controller to save the operating parameters from RAM into a flash ROM. A second operating parameter controller responds to a third command from the host device by storing information into the flash ROM indicative of whether operating parameter data in the flash ROM should be automatically loaded after the memory initialization process.

Abstract: In a label printer in which either a peeling mode or non-peeling mode can be selected as the label dispensing mode, labels are printed and thus wasted when the operator loads the label paper into a transportation path that does not match the desired dispensing mode. This problem is solved by a label printer enabling selecting as the printing configuration either a peeling configuration for peeling printed labels from the web of label paper 11, or a non-peeling configuration in which the printed labels are not separated from the web of the label paper 11. A printing configuration selection unit 27 enables selecting which printing configuration to use. To operate in the non-peeling mode, the label paper 11 is loaded into a first paper transportation path A. To operate in the peeling mode, the label paper 11 is loaded to a second paper transportation path B. A cover unit 2 can be opened and closed to enable handling the label paper, and takes the label printer off-line when the cover unit 2 is opened.