According to aspects of the present disclosures, a printing device has a print head, a battery, a USB PD controller. The printing device is connected to an external power source in accordance with a connection compliant with a USB standard. The external power source has a plurality of electrical power profiles. The printing device uses one of the external power source and the battery as an electrical power supplying source of the print head. The printing device a power source voltage value with a rated voltage value of the print head, when the power source voltage value is larger than the rated voltage value, determine the battery as the electrical power supplying source, and, when the power source voltage value is equal to or less than the rated voltage value, determining the external power source as the electrical power supplying source.

An information processing apparatus includes a power processor, an interface, a detector that detects at least one of a voltage value and a current value on an electric power line which connects the power processor and the interface, and a controller. The controller notifies a swap request for swapping electric power roles with an external device to the external device via the interface in a case where a detection value of the detector indicates an abnormal value while electric power is supplied to the external device via the interface.

An FFC coupling a sensor substrate and an AFE substrate includes a configuration in which a ground line is sandwiched between a first lead wire and a second lead wire that are signal lines that transmit a read signal from the sensor substrate to the AFE substrate, and includes a configuration in which a third lead wire having a smaller voltage change than the signal line is sandwiched between two signal lines that are at least one set other than a set of the first lead wire and the second lead wire, wherein each of the signal lines is coupled to a ground pattern of the sensor substrate and is coupled to a ground pattern of the AFE substrate, and the third lead wire is coupled to a ground pattern of the sensor substrate and is coupled to a ground pattern of the AFE substrate.

A image forming apparatus includes a power control unit, an operation mode control unit, and a first timer. The power control unit performs control so as to switch between a normal power state for supplying the operation power supply voltage to the image forming unit, a first power saving state for not supplying the operation power supply voltage to the image forming unit, and a second power saving state having less power consumption than the first power saving state. The operation mode control unit performs control so as to switch a normal mode corresponding to a normal power state, a first power saving mode corresponding to a first power saving state, and a second power saving mode corresponding to a second power saving state.

A card reading device and a card reading system. The card reading device includes an image scanner to read an image of a card. In the card reading device, the image scanner is usable when the card reading device is attached to a data receiving apparatus that receives data of the image scanned by the image scanner. In the card reading device, the image scanner is usable when the card reading device is detached from the data receiving apparatus. The card reading system includes the card reading device and the data receiving apparatus that receives the data of the image scanned by the image scanner.

Disclosed is an image forming apparatus which includes: a frame with an image forming portion; an operation unit being arranged to be movable with respect to a top surface of the frame; a cable with an electric wire which connects the frame and the operation unit; and an outlet provided on the frame or the operation unit, wherein the cable includes: an elastic member provided along the electric wire from the frame to the operation unit, the elastic member having a width equal to or greater than a diameter of the electric wire; and a protruding portion with elasticity, provided on a side of the elastic member on which the electric wire is arranged such that the protruding portion protrudes from the side of the elastic member, the protruding portion having a height which is equal to or greater than the diameter of the wire.

A printer includes: a board including a connector unit that includes at least a power supply connector into which a power cable is to be removably inserted; and a housing including: a housing main body that accommodates the board and includes a cable connection groove through which the power cable is inserted in an inserting and removing direction of the power cable; and a connector cover configured to cover the cable connection groove, wherein the connector cover includes: a cover main body including a power supply opening portion passing through the cover main body in the inserting and removing direction, and a first interface opening portion passing through the cover main body in the inserting and removing direction; and a first opening cover portion configured to cover at least a part of the first interface opening portion, wherein the first opening cover portion includes a first coupling portion configured to couple the first opening cover portion and the cover main body to each other.

An example image forming apparatus includes a communication device including a physical layer protocol chip for performing communication with a network by using a connector with a light emitting element for displaying a network connection state and a physical layer protocol, a print engine to perform a print job, and a processor to, based on print data being received through the communication device, control the print engine to print the received print data, determine whether a network cable is connected to the connector based on an operation state of the light emitting element, and, based on a determination that the network cable is not connected to the connector, control the physical layer protocol chip to be in a power-saving state.

A printing apparatus supporting USB type-C includes: a USB type-C interface configured to support a connection with an external device; a printing unit configured to perform printing; and a controller configured to control the supply of power to the external device. The controller checks a reception power received from an external power source, predicts the estimated power consumption of at least one of the printing apparatus and the external device, determines a supply power to be transmitted to the external device based on the reception power and the estimated power consumption, and transmits the supply power to the external device via the USB type-C interface.

A printing apparatus connectable to an external power supply having outputtable voltage information, including: a printing head performing printing by electric power supplied from the external power supply; a resistor having an electric resistivity based on the printing head; a detector detecting a substantial voltage; and a controller configured to: obtain the voltage information from the external power supply; decide a tentative voltage; request the external power supply to output the tentative voltage; energize the resistor with the tentative voltage; decide the substantial voltage if a voltage corresponding to each of the obtained voltage information is supplied based on a result of the detector during the energizing of the resistor; decide an electric power supply voltage based on the substantial voltage; and request the external power supply to output the electric power supply voltage.