Printing apparatus, control method for printing apparatus, and information processing apparatus

Abstract

To provide a technology in which, while a communication relation between a terminal device and a printing apparatus is maintained, the connection destination of the printing apparatus can be switched to another terminal device.SOLUTION: A printing apparatus can communicate through a wired interface and a wireless interface and can operate by electric power supplied from a terminal device connected thereto through the wired interface, where determination means determines whether or not operation based on a job can be executed, on the basis of a power supply capacity of the terminal device connected thereto through the wired interface, and when the determination means determines that the operation based on the job cannot be executed, connection control means connects communicably to the terminal device through the wireless interface., and notification control means provides notification that prompts improving the power supply capacity for the printing apparatus.SELECTED DRAWING: Figure 11

Description

Technical Field

[0001] The present invention relates to a recording apparatus, a control method for the recording apparatus, and an information processing apparatus.

Background Art

[0002] Conventionally, there is known a recording apparatus equipped with a wired interface for wired connection and a wireless interface for wireless connection to a terminal device that outputs a recording job. In such a recording apparatus, it is communicably connected to various terminal devices via the wired interface and the wireless interface, and furthermore, some of these recording apparatuses are configured to be operable by power supply from a terminal device connected via the wired interface.

[0003] Patent Document 1 discloses a recording apparatus equipped with a wired interface and a wireless interface, which maintains a connection by the wireless interface until communication is performed via the wired interface even when connected via the wired interface.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, in a recording device that is powered by a terminal device connected via a wired interface and communicates via the wired interface, depending on the power supply capacity from the terminal device, it is necessary to execute a process for improving the power supply capacity to the recording device. Specifically, it is necessary to switch to a connection or a terminal device with a higher power supply capacity. However, in the recording device disclosed in Patent Document 1, when the connection via the wired interface or the terminal device is switched after communication via the wired interface, the communication with the terminal device that has been connected to the recording device so far is disconnected. For this reason, the user has to perform a connection operation to connect the recording device and the terminal device after the switching operation, and such an operation has been a burden on the user.

[0006] The present invention has been made in view of the above problems, and an object thereof is to provide a technique capable of switching the connection destination of a recording device to another terminal device while maintaining the communication relationship between the terminal device and the recording device.

Means for Solving the Problems

[0007] In order to achieve the above object, an embodiment of the present invention is a recording device that can communicate with a terminal device capable of transmitting a job for executing an operation via a wired interface and a wireless interface, and is operable by power supply from the terminal device connected via the wired interface, and based on the power supply capacity from the terminal device connected via the wired interface, determination means for determining whether an operation based on the job can be executed; connection control means for communicably connecting to the terminal device via the wireless interface when the determination means determines that the operation based on the job cannot be executed; and notification control means for performing a notification to prompt improvement of the power supply capacity to the recording device when the determination means determines that the operation based on the job cannot be executed.

Effects of the Invention

[0008] According to the present invention, while maintaining the communication relationship between the terminal device and the recording device, it becomes possible to switch to a terminal device capable of operating the recording device.

Brief Description of the Drawings

[0009]

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Embodiments for Carrying Out the Invention

[0010] Hereinafter, with reference to the accompanying drawings, an example of an embodiment of a recording device, a control method for the recording device, and an information processing device will be described. Note that the following embodiments do not limit the present invention, and not all combinations of the features described in the present embodiment are essential for the solution means of the present invention. Also, the positions, shapes, etc. of the components described in the embodiments are merely examples, and the present invention is not intended to be limited thereto.

[0011] (First Embodiment) First, with reference to FIGS. 1 to 11, the recording device according to the first embodiment will be described.

[0012] <Recording System> FIG. 1 is a schematic configuration diagram showing a recording system including the recording device according to the present embodiment. The recording system 12 including the recording device 10 according to the present embodiment includes a recording device 10 that ejects ink for recording, and a smartphone 30 as a terminal device connected to the recording device 10 via a local area network 14. In the recording system 12, a wireless LAN access point 18 is provided, and the recording device 10 and the smartphone 30 can be connected to the local area network 14 by wirelessly connecting to the wireless LAN access point 18. The recording system 12 also includes a router 22 for connecting the local area network 14 to the Internet 20, and a cloud server 24 connected to the Internet 20. Thereby, the recording device 10 and the smartphone 30 can communicate with the cloud server 24 connected to the Internet 20 via the router 22.

[0013] The recording device 10 is provided with a USB (Universal Serial Bus) connection terminal and is configured to be connectable to various devices. In this embodiment, the recording device 10 is provided with a USB connector 214 to which a USB cable can be connected, and is connected to the smartphone 30 via the USB cable 32. Thereby, the recording device 10 can be operated by the power supplied from the smartphone 30 via the USB cable 32. Thus, in this embodiment, the recording device 10 is configured to be connectable to a terminal device such as the smartphone 30 via a wired interface realized by the USB connector 214, the USB cable 32, etc. (hereinafter also referred to as the "USB interface").

[0014] Also, in the recording system 12, it is also possible to use a personal computer (PC terminal) 16 as a terminal device. In this case, the PC terminal 16 and the recording device 10 are connected via the USB cable 32, and the recording device 10 can operate by the power supplied from the PC terminal 16. Further, in the recording system 12, the recording device 10 and the USB power adapter 34 are connected via the USB cable 32, and the recording device 10 can operate by the power supplied from the commercial power supply. Although not shown in the figure, the recording device 10 is also configured to be operable by the power supplied via the USB cable 32 from a mobile battery or a USB host port installed in an airplane seat, a bus seat, etc. Also, the terminal device in this specification includes an information processing device (described later) such as the PC terminal 16 and the smartphone 30, as well as the USB power adapter 34, etc.

[0015] A wireless LAN infrastructure connection 38 is used between the smartphone 30, the recording device 10, and the wireless LAN access point 18. The recording device 10 has a mode in which it operates as a wireless LAN access point. When the recording device 10 is operating as an access point, the smartphone 30 can directly connect to the recording device 10 (direct connection 40). Also, the smartphone 30 can be connected to a cloud server 24 that is connected to the Internet 20 via a mobile phone line network 42.

[0016] When the recording device 10, the PC terminal 16, and the smartphone 30 are connected by a USB cable, data communication between the recording device 10, the PC terminal 16, and the smartphone 30 can use the USB cable, but is not limited to this. The recording device 10 operates on the power supplied from the PC terminal 16 and the smartphone 30 connected by the USB cable, and data communication can also be executed using a wireless LAN or short-range wireless communication. Note that the recording system 12 shown in FIG. 1 is an example of a recording system including the recording device 10 according to the present embodiment, and a configuration different from the configuration shown in FIG. 1 may be used. For example, instead of the wireless LAN access point 18 and the router 22, one configuration having these functions, for example, a router having an access point function, may be used.

[0017] <Configuration of the control system of the recording device> Next, the configuration of the control system of the recording device 10 will be described. FIG. 2 is a block diagram showing the configuration of the control system of the recording device 10. In the present embodiment, as the recording device 10, a so-called multifunction printer in which a recording mechanism and a reading mechanism are incorporated in the same housing and which supports composite functions such as a copying function will be described as an example.

[0018] The recording apparatus 10 includes a main board 202 that controls the entire recording apparatus 10, a reading unit 204 that reads a document, a recording unit 206 that records on a recording medium, and an operation panel 208 that can be operated by a user. Further, the recording apparatus 10 includes a wireless LAN unit 210 for connecting to a wireless LAN, a short-range wireless communication unit 212 for performing short-range wireless communication, and a USB connector 214 that can be connected to a USB cable 32. Thus, the recording apparatus 10 can be connected to a terminal device via the USB connector 214 or the like, and is also configured to be connectable to a terminal device such as a smartphone 30 via a wireless interface realized by the wireless LAN unit 210 and a wireless LAN or the like. Hereinafter, the wireless interface realized by the wireless LAN unit 210 and a wireless LAN or the like is also referred to as a "wireless LAN interface".

[0019] The main board 202 includes a CPU 216 in the form of a microprocessor, a program memory 218 in the form of a ROM, a data memory 220 in the form of a RAM, and a non-volatile memory 222 that can hold stored information even without power supply. Further, the main board 202 includes a reading unit control circuit 224 for controlling the reading unit 204, a recording unit control circuit 226 for controlling the recording unit 206, and an operation unit control circuit 228 for controlling the operation panel 208. Furthermore, the main board 202 includes a wireless LAN communication control circuit 230 for controlling the wireless LAN unit 210 and a short-range wireless communication control circuit 232 for controlling the short-range wireless communication unit 212. Still further, the main board 202 includes a USB communication control circuit 234 for controlling the driving of the USB connector 214 and a power control circuit 236 for controlling the amount of power supplied from the USB connector 214. Each component provided on the main board 202 is connected to each other by an internal bus 238.

[0020] The CPU 216 operates with the data memory 220 as a work area based on the control program stored in the program memory 218 and the information held in the data memory 220. Also, the CPU 216 can continue to operate based on the set values and data written to the non-volatile memory 222 when the power is turned on again after being turned off, by writing various set values, data, etc. to the non-volatile memory 222. As the non-volatile memory 222, for example, a semiconductor memory device such as a flash memory can be used. In a flash memory, it is possible to maintain the stored content even when the power is turned off, but there are often limitations on the number of rewritable times for each memory element. Therefore, it is necessary to design considering at what timing during the product life of the recording apparatus 10 to write to the non-volatile memory 222. Generally, the higher the guaranteed number of rewrites of a memory device, the higher the spare part unit price.

[0021] The CPU 216 controls the reading unit 204 via the reading unit control circuit 224, reads the original document, and stores the read data as image data in the data memory 220. Further, the CPU 216 controls the recording unit 206 via the recording unit control circuit 226, and records on the recording medium based on the recording data obtained by image-processing the image data stored in the data memory 220. Also, the CPU 216 can display the state of the recording apparatus 10, display selectable functions as a menu, and accept operations from the user on the display unit 240 and the touch panel 242 provided on the operation panel 208 by controlling the operation unit control circuit 228.

[0022] The CPU 216 controls the wireless LAN unit 210 via the wireless LAN communication control circuit 230 to perform wireless LAN communication with other communication terminal devices. Note that the wireless LAN unit 210 is provided with an access point 244 for connecting to other terminal devices (information processing devices described later). In this specification, the "access point" is appropriately referred to as "AP". Further, the CPU 216 controls the short-range wireless communication unit 212 via the short-range wireless communication control circuit 232 to detect a connection with other short-range wireless communication terminals and perform data transmission and reception with other short-range wireless communication terminals. Furthermore, the CPU 216 operates the USB connector 214 via the USB communication control circuit 234 to perform USB communication with other external devices connected by a USB cable. Additionally, the CPU 216 controls the power control circuit 236 to grasp and control the power supply amount from the USB connector 214 and the power storage amount of the power in the power control circuit 236.

[0023] <Configuration of the Power Supply System of the Recording Device> Next, the configuration of the power supply system of the recording device 10 will be described. FIG. 3 is a block diagram showing the configuration of the power supply system of the recording device 10.

[0024] The power control circuit 236 includes an electric double layer capacitor (EDLC) 302 capable of power storage and power supply, and a Charger IC 304 that controls the input current. The power control circuit 236 also includes a DC-DC (boost) 306, which is a boost circuit for boosting the voltage from the Charger IC 304, and a DC-DC (buck) 308, which is a buck circuit for bucking the voltage output from the DC-DC 306. Additionally, the power control circuit 236 includes a Motor Driver 310 that drives the motors in the reading unit 204 and the recording unit 206, and a Head Driver 312 that drives the reading head (not shown) and the recording head (not shown).

[0025] The recording device 10 has a power supply voltage V from the USB connector 214 BUS and a power supply voltage V from the EDLC 302 BATIt can be driven and the power supply is controlled by ChargerIC304. The voltage output from ChargerIC304 is boosted by DC-DC (step-up) 306, and the voltage boosted by DC-DC 306 is used by MotorDriver310 to drive the motors of the reading unit 204 and the recording unit 206. Also, the voltage boosted by DC-DC 306 is used by HeadDriver312 to drive the reading head of the reading unit 204 and the recording head of the recording unit 206. In the power supply control circuit 236, the voltage boosted by DC-DC 306 is used to drive a relatively large load. Furthermore, the voltage boosted by DC-DC 306 is input to DC-DC 308 to generate the logic power supply voltage used in ASIC314, ROM316, and DDR318. Note that ASIC314 is a custom IC including CPU216 and peripheral circuits.

[0026] ChargerIC304 is an IC having functions of controlling the input current from the USB connector 214, and controlling the charging of the EDLC302 and protecting against abnormal operations. ChargerIC304 can communicate with the ASIC314 connected by the Control Serial Bus320. Note that the Control Serial Bus320 forms a part of the internal bus 238. In this embodiment, the communication between ChargerIC304 and ASIC314 is performed in the UART (Universal Asynchronous Receiver Transmitter) mode.

[0027] Charger IC 304 determines the input current according to the supplying terminal device (such as PC terminal 16, smartphone 30, USB power adapter 34, etc.). In this embodiment, for example, it performs determination according to the USB-BC (USB Battery Charge) standard (BC determination) and the USB-PD (USB Power Delivery) standard (CC determination). The ASIC 314 that receives the results of the BC determination and CC determination from the Charger IC 304 determines the threshold values such as the charging current, full charge, and over-discharge voltage of the Charger IC 304, and sets the threshold values for the Charger IC 304.

[0028] The EDLC 302 is an electric double layer capacitor. The EDLC 302 receives charging control from the Charger IC 304 according to the instruction of the ASIC 314, and supplies power to the DC-DC 306, Motor Driver 310, and Head Driver 312 with the power supply voltage V BAT . The power supply voltage V BAT of the EDLC 302 can be transmitted from the Charger IC 304 to the ASIC 314. In addition, various information regarding power supply can be transmitted from the Charger IC 304 to the ASIC 314. These information are used for various controls of the recording device 10.

[0029] For example, during the recording operation of the recording device 10, when the power supply voltage BAT of the EDLC 302 drops, the ASIC 314 stops the recording operation and instructs the Charger IC 304 to perform charging control until the power supply voltage V BAT reaches a certain threshold value. Then, when the ASIC 314 receives from the Charger IC 304 that the power supply voltage V BAT has reached a certain threshold value, it resumes the recording operation. Also, when the power supply stops, such as when the USB cable is unplugged during the operation with the power supplied from the USB connector 214, the ASIC 314 immediately starts an operation corresponding to the power supply stop upon receiving a notification from the Charger IC 304.

[0030] <Information Processing Device> Next, in the recording system 12, the configuration of an information processing device such as the PC terminal 16 and the smartphone 30, which can input and transmit jobs and various types of information to the recording device 10, will be described. FIG. 4 is a schematic configuration diagram of the information processing device. In the description using FIG. 4, in the recording system 12, the smartphone 30, which is connected to the recording device 10 via the USB cable 32 and serves as a power supply source for the recording device 10, will be described as an example of the information processing device.

[0031] The smartphone 30 as an information processing device includes a CPU 402 that controls the overall operation of the smartphone 30 according to each program stored in a storage area and the like described later. The smartphone 30 also includes a ROM 404 that stores control programs and the like of the CPU 402, and a RAM 406 that temporarily stores various types of information and functions as a working area for the CPU 402. Furthermore, the smartphone 30 includes an internal storage device 408 that stores various application programs such as an operating system and an operation application (described later), and image data and the like.

[0032] The smartphone 30 includes an external storage device 412 that acquires application software stored in the internal storage device 408 via an external storage disk 410 received from another computer-readable storage medium in which these are stored. Note that the external storage disk is a CD, a DVD medium, or the like. The smartphone 30 also includes a touch panel 414 having a function as an operation unit that receives input from the user and a function as a display unit that can display various types of information.

[0033] The smartphone 30 is equipped with a WLAN unit 418 for connecting to a wireless LAN. Note that the specific functions of the WLAN unit 418 are the same as those of the wireless LAN unit 210. This WLAN unit 418 is equipped with an AP 420 for connecting to the recording device 10 and other information processing devices. Further, the smartphone 30 is equipped with a power supply unit 422 that supplies the power necessary for operation. The power supply unit 422 can receive power supply from an external power source such as an AC power source and store the power.

[0034] The smartphone 30 has a host function in USB connection and is equipped with a USB host control unit 424 that makes a connection with the recording device 10 via a USB cable 32. When the recording device 10 and other information processing devices are connected to the USB host control unit 424 via the USB cable 32, the CPU 402 instructs the power supply unit 422 to supply power to the USB host control unit 424. As a result, the USB host control unit 424 supplies power to the recording device 10 via the USB cable 32. The power supplied to the recording device 10 via the USB cable 32 is supplied to the power control circuit 236 via the USB connector 214.

[0035] The USB connector 214 can simultaneously supply power from the terminal device to the recording device 10 and perform communication between the terminal device and the recording device 10. For this reason, the recording device 10 can also receive recording data from the smartphone 30 via the USB connector 214. Therefore, in the present embodiment, the smartphone 30 can cause the recording device 10 to execute recording via the USB connector 214, and after making a wireless LAN connection, can cause the recording device 10 to execute recording using wireless.

[0036] <Connection standard> Next, the connection standards between the recording device 10 and terminal devices including the USB power adapter 34, the smartphone 30, and the PC terminal 16 will be described. FIG. 5 is a table showing the power supply amounts for each connection standard.

[0037] BC1.2 is based on the USB-BC (Battery Charge) standard. As a method for determining a charging USB port (CDP), a method of electrically determining using the D+ and D- signal lines for data communication of the USB port is defined. Also, in the case of a standard USB port that is not a charging port, after this detection is completed, communication based on the USB standard is performed, and within that, it is possible to discriminate the USB version.

[0038] Also, in USB Type-C, the PowerDelivery standard is defined, and the power supply amount can be notified by communication on the CC pins. Note that in the PowerDelivery standard, the supply power voltage can also be controlled from 5V to 48V, but in Fig. 5, the maximum power is shown as the value when supplying 5V.

[0039] <Execution ability of operation types according to connection standards> Next, the execution ability of various operations that can be executed by the recording device 10 according to the connection standard will be described. Fig. 6 is a table showing the execution ability of various operations that can be executed by the recording device 10 according to the connection standard. Hereinafter, the "table showing the execution ability of various operations that can be executed by the recording device according to the connection standard" will also be appropriately referred to simply as the "table showing the execution ability".

[0040] Fig. 6 shows the execution ability in the combination of the type of operation (operation type) that can be executed by the recording device 10 and the type of power supply standard (connection standard in Fig. 4). In the recording device 10, the table showing the execution ability as shown in Fig. 6 may be held as table data in the program memory 218, or may be implemented as program code as discrimination code.

[0041] The operation types include a copy operation for recording the read manuscript, a recording operation for recording based on the recorded data, a reading operation for reading the manuscript, and a maintenance operation for the recording unit 206. The maintenance operation is an operation for maintaining and restoring the recording characteristics in the recording unit 206 well. In the present embodiment, the recording unit 206 performs recording on a recording medium by an inkjet method. Therefore, in the maintenance operation, ink is forcibly sucked from the nozzles in the recording head, ejection of ink that does not contribute to recording is executed into the cap that caps the nozzle surface, or the nozzle surface is wiped.

[0042] Also, the operation types include a capping operation for protecting the recording head with a cap. By protecting the nozzle surface of the recording head by capping, drying and sticking of the ink in the nozzles are suppressed, and damage to the head due to vibration during carrying of the recording apparatus 10 is suppressed. During the capping operation, power is consumed for motor driving to move the recording head to a position where capping is possible and to press the cap against the head. However, if it is only the capping operation, the power consumption can be suppressed compared to the maintenance operation.

[0043] Furthermore, the operation types include the display of the operation panel 208, wireless LAN communication, and USB communication. The display of the operation panel 208, wireless LAN communication, and USB communication are executed in parallel with other operations, but also consume power even when other operations are not being executed. For example, in the display of the operation panel 208, power is consumed to display a screen on the display unit 240. Also, in wireless LAN communication, power is consumed to operate the wireless LAN unit 210. In FIG. 6, the operation types generally have a larger power consumption as going upward in the table.

[0044] In FIG. 6, the execution capabilities for each operation type are represented in three levels: "〇", "△", and "×". "〇" indicates that, for the combination of the operation type and the type of power supply standard, the power required for the operation is lower than the power supply capacity, so the operation can be continuously executed. "△" indicates that the power required for the operation exceeds the power supply capacity, but it is possible to operate by consuming the power stored in the EDLC 302. Here, the operation cannot be continuously executed, but the power consumption per unit time can be reduced, such as by reducing the speed, or the operation can be intermittently executed with appropriate charging pause periods inserted, or executed conditionally. "×" indicates that the power required for the operation significantly exceeds the power supply capacity, and even if the power of the EDLC 302 is used, it is not possible to execute the operation even conditionally.

[0045] <Event processing> In the above configuration, in the recording device 10, when the logic power supply to the ASIC 314 is supplied and the power-on operation is performed, event processing for executing processing according to the event type is started. Here, an event is various operations and processes that can be executed in the recording device 10. In this embodiment, it is assumed that the recording device 10 and the smartphone 30 are connected via the USB cable 32, the recording device 10 is powered by the smartphone 30, and is in a state where it can communicate with the smartphone 30 via the USB cable 32.

[0046] FIG. 7 is a flowchart showing the detailed processing content of the event processing. FIG. 8 is a flowchart showing the detailed processing content of the job start processing, which is a subroutine of the event processing. FIG. 9 is a flowchart showing the detailed processing content of the USB insertion processing, which is a subroutine of the event processing.

[0047] The series of processes shown in the flowcharts of FIGS. 7, 8, and 9 are performed when the CPU 216 expands and executes the program code stored in the program memory 218 in the data memory 220. Alternatively, some or all of the functions of the steps in FIGS. 7, 8, and 9 may be executed by hardware such as an ASIC or an electric circuit. In this specification, the symbol S in the description of each process in the flowchart means a step in that flowchart.

[0048] When the event process is started, the processes from S702 to S718 are looped and repeatedly executed until the recording device 10 is powered off or the logic power supply to the ASIC 314 is cut off. During the loop, at S704, the CPU 216 waits for the occurrence of an event to be processed. Next, at S706, the CPU 216 determines the type of the event that has occurred. The subsequent process of S706 is a so-called event-driven process that performs processing according to the type of the event that has occurred.

[0049] Hereinafter, the subsequent process of S706 will be specifically described. If the event is one that detects that a power-off operation has been performed, the process proceeds to S708 and shifts to the power-off state. That is, the recording device 10 is set to the power-off state. As a result, the CPU 216 exits the repeated loop at S718 and ends the event process.

[0050] When the event is that the insertion of the USB cable is detected, the process proceeds to S710, and the CPU 216 executes USB insertion processing. Details of the USB insertion processing will be described later. When the event is that a job start notification is received from the smartphone 30 via the USB connector 214, the process proceeds to S712, and the CPU 216 executes job start processing. At this time, for example, a flag for determining the reception of a job start notification (hereinafter also referred to as "information regarding the start of a job") is set to ON. Details of the job start processing will be described later. Note that operations executable by the recording apparatus 10 are set for the job, and for example, a recording job for performing a recording operation, a scan job for performing a manuscript reading operation, a copy job for performing a copy operation, and the like are included.

[0051] When the event is that a job is received from the smartphone 30 via the USB connector 214 or the wireless LAN unit 210, the process proceeds to S714, and job execution processing is performed. The operation during job execution is determined by the operation content to be executed according to the content notified in the job, and in the job execution processing, various operations such as recording, scanning, and copying set for the job are executed. When the event is something else, the process proceeds to S716, and the CPU 216 performs processing according to the generated event.

[0052] =Job Start Processing= Next, the job start processing executed in S712 will be described with reference to FIG. 8. In the job start processing, first, in S802, the CPU 216 checks the power supply status. In S802, with reference to the results of the BC determination and CC determination detected by the power control circuit 236 at the time of insertion of the USB cable 32, the connection standard and the current value are acquired.

[0053] Next, in S804, the CPU 216 determines whether the power supply from the smartphone 30 is insufficient for the job to be executed next. That is, in S804, it is determined whether the power supply capacity from the smartphone 30 via the USB cable 32 corresponds to the job (operation) to be executed next. Specifically, in S804, based on the operation executed in the job, the connection standard, and the current value, the determination is made based on a table indicating the execution ability (see FIG. 6). For example, if the symbol indicating the execution ability is "〇", it is determined that the power supply from the smartphone 30 is not insufficient, that is, the power supply capacity from the smartphone 30 via the USB cable 32 corresponds to the job to be executed next. Also, if the symbols indicating the execution ability are "△" and "×", it is determined that the power supply from the smartphone 30 is insufficient, that is, the power supply capacity from the smartphone 30 via the USB cable 32 does not correspond to the job to be executed next. In S804, the determination may be made according to the content of the job to be executed. For example, in the case where the job is a recording job, the power supply amount determination threshold can be changed depending on whether the recording content is color or monochrome. Also, the determination threshold may be changed according to the number of recording sheets of the recording job. In S804, if it is determined that the power supply from the smartphone 30 is insufficient, it is determined that the job to be executed next cannot be executed. Also, in S804, if it is determined that the power supply from the smartphone 30 is not insufficient, it is determined that the job to be executed next is executable. Thus, in this embodiment, the CPU 216 functions as a determination unit that determines whether the operation based on the job to be executed is executable based on the power supply amount from the smartphone 30.

[0054] In S804, when it is determined that the power supply amount is insufficient, the process proceeds to S806, and the CPU 216 transmits wireless LAN setting information for wireless LAN connection between the smartphone 30 and the recording device 10 to the smartphone 30. Thereafter, in S808, the CPU 216 activates the wireless LAN unit 210 of the recording device 10 in a state where connection is possible with the wireless LAN setting information transmitted in S806, and waits for a wireless LAN connection to be established between the smartphone 30 and the recording device 10. Thus, in the present embodiment, the CPUC 216 functions as a connection control unit for wireless LAN connection between the smartphone 30 and the recording device 10.

[0055] Here, wireless LAN setting information is transmitted from the recording device 10 to the smartphone 30 so that the smartphone 30 performs connection processing according to the wireless LAN setting information. However, the present invention is not limited to this. The recording device 10 may request wireless LAN setting information from the smartphone 30, and use the wireless LAN setting information received from the smartphone 30 as a response to establish a wireless LAN connection from the recording device 10 side. Note that various connection forms can be used for the wireless LAN connection between the recording device 10 and the smartphone 30. For example, a wireless LAN infrastructure mode connection 38 that connects via the wireless LAN access point 18 can be used. Alternatively, a Wi-Fi (registered trademark) direct connection (direct connection 40) in which the recording device 10 operates as an access point and the smartphone 30 participates therein can also be used. What connection form to use and what connection parameters to use are specified by the wireless LAN setting information.

[0056] When a wireless LAN connection is established, communication between the recording device 10 and the smartphone 30 can be performed using the wireless LAN. As a result, even if the USB cable 32 is removed from the recording device 10, the recording device 10 and the smartphone 30 can remain in a communicable state. Therefore, when the wireless LAN connection is established in S808, the process proceeds to S810, and the CPU 216 issues a notification prompting an improvement in the power supply capacity to the recording device 10. Note that "improvement in the power supply capacity to the recording device 10" means "improvement in the power supply capacity in the mechanism for supplying power to the recording device 10". The notification prompting an improvement in the power supply capacity to the recording device 10 includes, for example, a notification prompting a change to a USB cable for which a symbol representing the execution ability is "〇", and a notification prompting a change of the USB cable and a change of the terminal device connected via the USB cable. Thus, in the present embodiment, the CPU 216 functions as a notification control unit that issues a notification prompting an improvement in the power supply capacity to the recording device 10.

[0057] In S810, for example, a notification screen 1002 that displays a notification prompting an improvement in the power supply capacity to the recording apparatus 10 is displayed on the display unit 240 or the touch panel 242 of the operation panel 208 (see Fig. 10(a)). Here, a notification screen that displays a notification prompting an improvement in the power supply capacity to the recording apparatus 10 on the display unit 240 or the like will be described. Fig. 10 is a diagram showing a notification screen that displays a notification prompting an improvement in the power supply capacity to the recording apparatus 10, (a) is an example of the notification screen for displaying the notification, and (b) is a modified example of the notification screen. On the notification screen 1002, as an error message 1004, it is displayed that the power supply amount to the recording apparatus 10 is insufficient. Also, on the notification screen 1002, as a status message 1006, it is displayed that the communication between the recording apparatus 10 and the smartphone 30 has been switched from USB communication via a USB cable to wireless LAN communication. Furthermore, on the notification screen 1002, as an instruction message 1008, a notification prompting an improvement in the power supply capacity to the recording apparatus 10 is displayed by removing the USB cable 32 connecting the recording apparatus 10 and the smartphone 30. In the present embodiment, as a notification prompting an improvement in the power supply capacity to the recording apparatus 10, a notification prompting connection to a USB power adapter 34 using a USB cable of PowerDelivery 3.0 (a connection standard and current value capable of executing all operations of the recording apparatus 10) is displayed. Additionally, on the notification screen 1002, a cancel button 1010 is displayed, and when the cancel button 1010 is selected, the execution of the job instructed to start is canceled.

[0058] Note that the screen displayed on the display unit 240 or the like in S810 is not limited to the notification screen 1002, and a continuation button 1014 may be displayed as in the notification screen 1012 (see FIG. 10(b)). For example, when the symbol representing the execution ability is "△", the job may be executable by a conditional operation such as reducing the speed or operating intermittently. In such a case, when the continuation button 1014 is selected, the job will be executed by a conditional operation without improving the power supply ability to the recording device 10. In this case, by disabling the wireless LAN connection and configuring to receive the job by USB communication, the power consumption required for the wireless LAN connection can be suppressed, and that much power can be used for job execution. Also, when the symbol representing the execution ability is "△", the notification screen 1012 may be displayed, and when the symbol is "×", the notification screen 1002 may be displayed.

[0059] Return to FIG. 8. On the other hand, in S804, when it is determined that the power supply amount is not insufficient, since it is possible to receive the job by USB communication and execute the operation based on the job, it is not necessary to switch to wireless LAN communication or improve the power supply ability to the recording device 10. Therefore, in S804, when it is determined that the power supply amount is not insufficient, the process proceeds to S812, and the CPU 216 transmits a job request to the smartphone 30 by USB communication and ends this job start process. Note that when ending the job start process, the flag that was set to ON when the job start notification was received is initialized to OFF.

[0060] =USB Insertion Process= Next, the USB insertion process executed in S710 will be described with reference to FIG. 9. In the USB insertion process, first, in S902, the CPU 216 determines whether or not it has received a job start notification. In S902, it is determined whether or not the flag for determining the reception of the job start notification is ON. If the flag is ON, it is determined that the job start notification has been received, and if the flag is OFF, it is determined that the job start notification has not been received.

[0061] In S902, if it is determined that the notification of job start has not been received, that is, it has not been received yet, this USB insertion process is terminated. That is, in S902, if it is determined that the notification of job start has not been received yet, it means that the recording device 10 and the smartphone 30 are connected via the USB cable 32, and it is only necessary that the connection via the USB cable 32 is established physically.

[0062] If it is determined in S902 that the notification of job start has been received, this USB insertion event becomes an event after the process for improving the power supply ability to the recording device 10 by the user based on the notification screen displayed in S810 of the job start process has been executed. Therefore, in S902, if it is determined that the notification of job start has been received, the process proceeds to S904, and the CPU 216 checks the power supply status. Since the specific processing content of S904 is the same as that of S802, the description thereof is omitted. That is, in S904, the power supply status in a state where the process for improving the power supply ability to the recording device 10 by the user has been performed is checked. The process for improving the power supply ability to the recording device 10 includes changing to a USB cable with a power supply ability (connection standard, current amount) capable of executing operations based on the job, or changing the USB cable and changing the terminal device connected via the USB cable, etc.

[0063] Next, in S906, the CPU 216 determines whether the power supply amount is insufficient for the job to be executed next. Since the specific processing content of S906 is the same as that of S804, the description thereof is omitted. In S906, if it is determined that the power supply amount is insufficient, it is determined that the improvement of the power supply ability to the recording device 10 has not been appropriately executed, and the process returns to S904. Also, in S906, if it is determined that the power supply amount is not insufficient, it is determined that the job can be executed, and the process proceeds to S908. The CPU 216 transmits a job request to the smartphone 30 by wireless LAN communication and terminates this USB insertion process. Note that after transmitting the job request, the flag for determining the reception of the job start notification is initialized to OFF.

[0064] <Flow when improving the power supply capacity of the recording device> Next, the flow when improving the power supply capacity to the recording device 10 will be described. FIG. 11 is a sequence diagram showing the flow when switching the power supply to the recording device 10 from the smartphone 30 via the USB cable 32 to the USB power adapter 34 via a USB cable showing a higher power supply capacity. In the description using FIG. 11, for ease of understanding, the case of executing a recording job will be described.

[0065] First, in S1102, the user 1100 connects between the recording device 10 and the smartphone 30 with the USB cable 32. Thereby, in S1104, a connection via the USB cable 32 is established between the recording device 10 and the smartphone 30, and USB communication becomes possible. Next, in S1106, the user 1100 operates the smartphone 30 to input a recording job and instruct its execution. In response to this, in S1108, the smartphone 30 sends a notification of the start of the recording job to the recording device 10.

[0066] When the recording device 10 receives a notification of the start of a recording job, in S1110, it checks the power supply status (corresponding to S802 and S804). Here, it is assumed that as a result of checking the power supply status, the power supply amount is insufficient and it is necessary to improve the power supply capacity to the recording device 10. Therefore, in this check of the power supply status, it is determined that the power supply amount is insufficient. When the recording device 10 determines that the power supply amount is insufficient, in S1112, the recording device 10 transmits wireless LAN setting information to the smartphone 30 (corresponding to S806). Here, it suffices that the wireless LAN setting information can be exchanged and shared between the recording device 10 and the smartphone 30. Therefore, it may be configured to request the wireless LAN setting information from the recording device 10 to the smartphone 30 and transmit the wireless LAN setting information from the smartphone 30 to the recording device 10. That is, in the present embodiment, the wireless LAN setting information is exchanged by USB communication. In response to this, in S1114, based on the wireless LAN setting information, a wireless LAN connection is established between the smartphone 30 and the recording device 10 (corresponding to S808).

[0067] When the wireless LAN connection is established in this way, next, in S1116, the recording device 10 displays a notification screen 1002 on the display unit 240 of the operation panel 208 (corresponding to S810). The user 1100 checks the notification screen 1002 and, in S1118, executes a process to improve the power supply capacity to the recording device 10. Specifically, the USB cable 32 connecting the recording device 10 and the smartphone 30 is removed from the recording device 10, and the recording device 10 is connected to a USB power adapter 34 via, for example, a PowerDelivery 3.0 USB cable.

[0068] In this way, from the time when the recording device 10 and the smartphone 30 are connected by the USB cable 32 in S1102 until the USB cable 32 is removed from the recording device 10 in S1118, the recording device 10 is in a state where USB communication is possible. Also, from the time when the wireless LAN connection is established in S1114 until the USB cable 32 is removed from the recording device 10 in S1118, the recording device 10 can communicate in both communication forms, i.e., USB communication and wireless LAN communication. Furthermore, after the USB cable 32 is removed from the recording device 10 in S1118, the recording device 10 is in a state where only wireless LAN communication is possible.

[0069] When the connection between the recording device 10 and the USB power adapter 34 is established, a USB insertion event occurs, and in S1120, the recording device 10 checks the power supply status (corresponding to S902 and S904). Here, it shows the case where, as a result of executing the process of improving the power supply capacity to the recording device 10, a power supply amount sufficient to execute a job can be ensured. If it is determined as a result of checking the power supply status that the power supply amount is not insufficient (corresponding to S906), in S1122, the recording device 10 sends a recording job request to the smartphone 30 (corresponding to S908). In response to this, in S1124, the smartphone 30 sends a recording job to the recording device 10. Then, in S1126, the recording device 10 performs recording based on the recording job, and thereafter, in S1128, the recording device 10 sends a notification to the smartphone 30 indicating that the recording based on the recording job has ended.

[0070] <Operational Effects> As described above, in the recording apparatus 10, when it is determined that a job cannot be executed based on the power supply capacity from the USB-connected smartphone 30, the communication mode between the recording apparatus 10 and the smartphone 30 is changed from USB communication to wireless LAN communication. Further, at this time, a notification is given to prompt improvement of the power supply capacity to the recording apparatus 10. As a result, even if the user removes the USB cable 32 from the recording apparatus 10 to improve the power supply capacity to the recording apparatus 10 based on the notification, communication between the recording apparatus 10 and the smartphone 30 is maintained. For this reason, the user does not need to perform the connection work between the recording apparatus 10 and the smartphone 30 after the operation of improving the power supply capacity to the recording apparatus 10, and the convenience is improved.

[0071] (Second Embodiment) Next, a recording apparatus according to the second embodiment will be described with reference to FIGS. 12 to 15. In the following description, for components that are the same as or corresponding to those of the recording apparatus according to the first embodiment described above, the same reference numerals as those used in the first embodiment are used, and detailed description thereof will be omitted.

[0072] In the first embodiment, based on the connection standard and the amount of power as the power supply capacity from the smartphone, it is determined whether the job to be executed next can be executed, and based on this determination result, a notification to prompt improvement of the power supply capacity and a switching of the communication mode are performed. Note that depending on the amount of power stored in the smartphone, there is a possibility that the smartphone cannot execute job management such as transmitting a job or receiving a notification that the job has ended. Therefore, in the second embodiment, based on the amount of power stored in the smartphone, it is determined whether the job to be executed next can be executed, and based on this determination result, a notification to prompt ensuring the power supply capacity to the recording apparatus 10 and a switching of the communication mode are performed.

[0073] When the smartphone 30 is connected to the recording device 10 via the USB cable 32, the smartphone 30 is in a state of supplying power to the recording device 10 and not receiving power from an external source. Therefore, in this state, the smartphone 30 operates the smartphone 30 while supplying power to the recording device 10 with the power stored in the smartphone 30. For this reason, if this state continues, the power stored in the smartphone 30 will continue to be consumed during the execution of the job, and the smartphone 30 will no longer be able to operate, the job cannot be managed, and it may become impossible to execute or end the job on the recording device 10. Therefore, in the present embodiment, in order to appropriately execute the job, the power supply capacity to the recording device 10 is ensured according to the power storage amount of the smartphone 30.

[0074] <Job transmission process> In the present embodiment, when the execution of an input job is instructed in an application (operation application) that operates on the smartphone 30 and operates the recording device 10, the smartphone 30 starts a job transmission process for transmitting the job to the recording device 10. FIG. 12 is a flowchart showing the detailed processing contents of the job transmission process. The series of processes shown in the flowchart of FIG. 12 are performed when the CPU 402 expands and executes the program code stored in the ROM 404 in the RAM 406. Alternatively, some or all of the functions of the steps in FIG. 12 may be executed by hardware such as an ASIC or an electric circuit.

[0075] When the job transmission process starts, first, in S1202, the CPU 402 determines whether it is connected (USB connection) to the recording device 10 via the USB cable 32. If it is determined in S1202 that it is not connected to the recording device 10 via the USB cable 32, the process proceeds to S1216, which will be described later. If it is determined in S1202 that it is connected to the recording device 10 via the USB cable 32, the process proceeds to S1204, and the CPU 402 checks the power storage amount in the power supply unit 422. Thus, in the present embodiment, the CPU 402 functions as a detection unit capable of detecting the power storage amount in the power supply unit 422 corresponding to the power storage unit of the smartphone 30.

[0076] Next, in S1206, the CPU 402 determines whether there is a possibility that the power storage amount in the power supply unit 422 will be insufficient before the operation by the job to be executed is completed. A threshold value is set in a storage area such as the internal storage device 408, and in S1206, the determination is made based on this threshold value. Specifically, in S1206, for example, it is determined whether the power storage amount acquired in S1204 is less than a preset threshold value. Note that the threshold value may be varied according to the content of the job. For example, the threshold value may be changed according to the type of operation, or in the case of a recording operation, the threshold value may be changed according to whether it is color or monochrome, or according to the number of recording sheets. Such threshold values will be set experimentally for each operation executable by the job, for example.

[0077] In S1206, if it is determined that there is no possibility of insufficient power storage in the power supply unit 422, that is, the threshold value is not exceeded, the process proceeds to S1216 described later. Also, in S1206, if it is determined that there is a possibility of insufficient power storage in the power supply unit 422, that is, the threshold value is exceeded, the process proceeds to S1208. In S1208, the CPU 402 transmits wireless LAN setting information for establishing a wireless LAN connection with the smartphone 30 to the recording device 10. At this time, the wireless LAN setting information is output to the recording device 10 via the USB host control unit 424 and the USB cable 32. Then, in S1210, the CPU 402 waits for a wireless LAN connection to be established with the recording device 10 in a state where it can be connected with the wireless LAN setting information transmitted in S1208. Thus, in this embodiment, the CPU 402 functions as a connection control unit for performing a wireless LAN connection with the recording device 10.

[0078] Here, the form in which the wireless LAN setting information is transmitted from the smartphone 30 to the recording device 10 and the recording device 10 performs the corresponding connection process has been described, but it is not limited to this. The smartphone 30 may request the wireless LAN setting information from the recording device 10 and establish a wireless LAN connection from the smartphone 30 side using the wireless LAN setting information received from the recording device 10 as a response. Note that various connection forms can be used for the wireless LAN connection between the recording device 10 and the smartphone 30. For example, a wireless LAN infrastructure mode connection 38 that connects via the wireless LAN access point 18 can be used. Alternatively, a Wi-Fi (registered trademark) direct connection (direct connection 40) in which the recording device 10 operates as an access point and the smartphone 30 participates therein can also be used. What connection form and what connection parameters are used are specified by the wireless LAN setting information.

[0079] If a wireless LAN connection can be established with the recording device 10, communication between the recording device 10 and the smartphone 30 can be performed using the wireless LAN. As a result, while maintaining communication with the recording device 10, it is possible to execute a process for ensuring the power supply ability to the recording device 10. The process for ensuring the power supply amount to the recording device 10 is, for example, a process of switching the connection destination of the USB cable 32 removed from the smartphone 30 to a terminal device having a power supply ability. A terminal device having a power supply ability is a terminal device that has stored a power supply ability to complete the operation according to the job to be executed. In the case where the terminal device is a terminal device in a form that supplies the stored power (for example, a mobile battery), it has a power storage amount capable of executing the operation according to the job. Therefore, when a wireless LAN connection is established with the recording device 10, next, in S1212, the CPU 402 issues a notification prompting the touch panel 414 to ensure the power supply ability to the recording device 10 and to charge the smartphone 30. Specifically, a notification is issued that prompts the connection of the USB cable 32 inserted into the recording device 10 to a terminal device having a power supply ability and also prompts the charging of the smartphone 30. Thus, in the present embodiment, the CPU 402 functions as a notification control unit that controls the execution of a notification that prompts the change of the connection destination of the USB cable 32, that is, the connection of the USB cable 32 to a terminal device having a power supply ability, and also prompts the charging of the smartphone 30.

[0080] In S1212, on the touch panel 414, a notification screen 1302 is displayed that prompts the touch panel 414 to ensure power supply to the recording device 10 and to charge the smartphone 30. Here, a notification screen that prompts the touch panel 414 to display a notification for connecting the USB cable 32 to a terminal device with power supply capabilities will be described. FIG. 13 is a diagram showing an example of a notification screen that prompts the touch panel 414 to ensure power supply to the recording device 10 and to charge the smartphone 30. On the notification screen 1302, in the name display section 1304, the name of the recording device 10 that is wirelessly LAN-connected to the smartphone 30 is displayed. Also, on the notification screen 1302, in the network display section 1306, the type of the wireless LAN to which the smartphone 30 is connected or the SSID (Service Set ID) as an identifier is displayed.

[0081] On the notification screen 1302, as an error message 1308, it is indicated that the battery level of the smartphone 30 is insufficient. Further, on the notification screen 1302, as a status message 1310, it is displayed that the notification between the recording device 10 and the smartphone 30 has been switched from USB communication to wireless LAN communication. Also, on the notification screen 1302, as an instruction message 1312, a notification is displayed that prompts to remove the USB cable 32 and connect the recording device 10 to a terminal device with power supply capabilities, and also prompts to charge the smartphone 30. Furthermore, on the notification screen 1302, a cancel button 1314 is displayed, and when the cancel button 1314 is selected, the execution of the input job is cancelled.

[0082] Return to FIG. 12. When a notification is made to prompt ensuring the power supply ability to the recording device 10 and charging the smartphone 30 in S1212, next, proceed to S1214, and the CPU 402 determines whether power is being supplied to the power supply unit 422. In S1214, the power supply status to the power supply unit 422 is checked, and it waits for power supply to the power supply unit 422 to start from an external power source or the like. If it is determined in S1214 that power is being supplied to the power supply unit 422, that is, it is being charged, proceed to S1216, and the CPU 402 transmits a job to the recording device 10. Thereafter, in S1218, the CPU 402 determines whether a job end notification has been received from the recording device 10. If it is determined in S1218 that a job end notification has been received, this job transmission process is terminated.

[0083] <Event Processing> Next, the event processing executed in the recording device 10 will be described. FIG. 14 is a flowchart showing the detailed processing content of the event processing executed in the recording device 10 according to the present embodiment. The series of processes shown in the flowchart of FIG. 14 are performed by the CPU 216 developing and executing the program code stored in the program memory 218 in the data memory 220. Alternatively, some or all of the functions of the steps in FIG. 14 may be executed by hardware such as an ASIC or an electric circuit.

[0084] The event processing starts when the logic power supply to the ASIC 314 is supplied and the power-on operation is performed. Also, the event processing loops and repeatedly executes the processes from S1402 to S1418 until the recording device 10 is declared OFF or the logic power supply to the ASIC 314 is cut off. During the loop, in S1404, the CPU 216 waits for the occurrence of an event to be processed. Next, in S1406, the CPU 216 determines the type of the occurred event. The subsequent processing of S1406 is a so-called event-driven process that performs processing according to the type of the occurred event.

[0085] Next, the subsequent processing of S1406 will be specifically described. If the event detects that the power-off operation has been performed, the process proceeds to S1408 and shifts to the power-off state. That is, the recording apparatus 10 is turned off. As a result, the CPU 216 exits the repetition loop in S1418 and ends the event processing.

[0086] If the event detects that the USB cable has been inserted, the process proceeds to S1410, and the CPU 216 executes the USB communication connection establishment process after the USB insertion. In S1410, the recording apparatus 10 is communicably connected to the terminal device connected via the USB cable. If the event receives the wireless LAN setting information from the smartphone 30 via the USB connector 214, the process proceeds to S1412, and the CPU 216 performs a wireless LAN connection to be communicable with the smartphone 30 based on the received wireless LAN setting information.

[0087] If the event receives a job from the smartphone 30 via the USB connector 214 or the wireless LAN unit 210, the process proceeds to S1414 and job execution processing is performed. The operation during job execution is determined by the operation content notified by the job, and in the job execution processing, various operations such as recording, scanning, and copying set in the job are executed. If the event is something else, the process proceeds to S1416, and the CPU 216 performs processing according to the generated event.

[0088] <Flow when ensuring the power supply ability to the recording apparatus> Next, the flow when charging the smartphone 30 while ensuring the power supply ability to the recording apparatus 10 will be described. FIG. 15 is a sequence diagram showing the flow when switching the connection of the USB cable 32 inserted into the recording apparatus 10 according to the second embodiment to the USB power adapter 34 which is a terminal device having a power supply ability from the smartphone 30. In the description using FIG. 15, for ease of understanding, the case of executing a recording job will be described.

[0089] First, in S1502, user 1500 connects the recording device 10 and the smartphone 30 via the USB cable 32. As a result, in S1504, a connection via the USB cable 32 (USB connection) is established between the recording device 10 and the smartphone 30, enabling USB communication. Next, in S1506, user 1500 operates the smartphone 30 to instruct the execution of a recording job. In response to this, in S1508, the smartphone 30 checks whether the power storage unit 422 has a power storage capacity capable of executing the recording operation based on the recording job (corresponding to S1204). Here, the case where the power storage unit 422 does not have a power storage capacity capable of executing the recording operation based on the recording job will be described.

[0090] If, as a result of the check in S1508, it is determined that the power storage unit 422 does not have a power storage capacity capable of executing the recording operation based on the recording job, the process proceeds to S1510, and the smartphone 30 transmits wireless LAN setting information to the recording device 10 (corresponding to S1208). Then, the process proceeds to S1512, and a wireless LAN connection is established between the recording device 10 and the smartphone 30 based on the wireless LAN setting information. Here, it is only necessary that the wireless LAN setting information can be exchanged and supplied between the recording device 10 and the smartphone 30. Therefore, the smartphone 30 may request the wireless LAN setting information from the recording device 10, and the recording device 10 may transmit the wireless LAN setting information to the smartphone 30.

[0091] When the wireless LAN connection is thus established, next, in S1514, the notification screen 1302 is displayed on the touch panel 414 of the smartphone 30 (corresponding to S1212). User 1500 checks the notification screen 1302, and in S1516, changes the connection destination of the USB cable 32 to ensure the power supply ability to the recording device 10. Specifically, the USB cable 32 connecting the recording device 10 and the smartphone 30 is removed from the smartphone 30 and connected to, for example, the USB power adapter 34. Also, an external power source is connected to the smartphone 30 to charge the smartphone 30.

[0092] In this way, from the time when the recording device 10 is connected to the smartphone 30 by the USB cable 32 in S1502 until the USB cable 32 is removed from the smartphone 30 in S1516, the recording device 10 is in a state where USB communication is possible. Also, from the time when the recording device 10 establishes a wireless LAN connection in S1512 until the USB cable 32 is removed from the smartphone 30 in S1516, the recording device 10 can communicate in both communication forms of USB communication and wireless LAN communication. Furthermore, after the recording device 10 removes the USB cable 32 from the smartphone 30 in S1516, only wireless LAN communication is possible.

[0093] Thereafter, in S1518, the smartphone 30 checks the power supply status (corresponding to S1214), and as a result of the check, if power supply has started, in S1520, the smartphone 30 transmits a recording job to the recording device 10 (corresponding to S1216). In response to this, in S1522, the recording device 10 executes a recording operation based on the recording job, and when the recording operation ends, in S1524, the recording device 10 notifies the smartphone 30 of the end of the recording job.

[0094] <Advantages and effects> As described above, when the power storage amount of the smartphone 30 is insufficient for the execution of a job in the recording device 10 connected via the USB cable, the communication form between the recording device 10 and the smartphone 30 is changed from USB communication to wireless LAN communication. Furthermore, at this time, the connection of the recording device 10 by the USB cable is switched to a terminal device with power supply ability from the smartphone 30, and a notification to prompt charging of the smartphone 30 is made. As a result, when the user switches the USB cable to a terminal device with power supply ability based on the notification, the communication between the recording device 10 and the smartphone 30 is maintained. For this reason, the user does not need to perform a connection operation between the recording device 10 and the smartphone 30 after the switching operation, and convenience is improved.

[0095] (Third Embodiment) Next, with reference to FIGS. 16 to 20, a recording apparatus according to the third embodiment will be described. In the following description, for configurations that are the same as or equivalent to those of the recording apparatus according to the first embodiment described above, the same reference numerals as those used in the first embodiment will be used, and detailed descriptions thereof will be omitted.

[0096] In the third embodiment, it is different from the first embodiment in that, after a notification for promoting the power supply ability to the recording apparatus 10 is performed, the USB communication is switched to wireless communication at the timing when the power supply source to the recording apparatus 10 is changed.

[0097] <Event Processing> In the recording apparatus 10 according to the present embodiment, as in the first embodiment, when the logic power supply to the ASIC 314 is supplied and the power-on operation is performed, event processing for executing processing according to the event type is started.

[0098] FIG. 16 is a flowchart showing the detailed processing contents of the event processing executed by the recording apparatus 10 according to the present embodiment. FIG. 17 is a flowchart showing the detailed processing contents of job start processing, which is a subroutine of the event processing in FIG. 16. FIG. 18 is a flowchart showing the detailed processing contents of USB insertion processing, which is a subroutine of the event processing in FIG. 16. A series of processes shown in the flowcharts of FIGS. 16, 17, and 18 are performed by the CPU 216 expanding and executing the program code stored in the program memory 218 in the data memory 220. Alternatively, some or all of the functions of the steps in FIGS. 16, 17, and 18 may be executed by hardware such as an ASIC or an electric circuit.

[0099] When event processing starts, the processing from S1602 to S1608 is looped and repeatedly executed until the recording device 10 is powered off or the logic power supply to the ASIC 314 is cut off. During the loop, in S1604, the CPU 216 waits for the occurrence of an event to be processed, and in S1606, the CPU 216 determines the type of the occurred event. The subsequent processing of S1606 is so-called event-driven processing that performs processing according to the type of the occurred event.

[0100] Hereinafter, the subsequent processing of S1606 will be specifically described. When the event is one that detects that a power-off operation has been performed, it proceeds to S1608 and shifts to the power-off state. As a result, the CPU 216 exits the repetition loop in S1618 and ends the event processing. When the event is one that detects that a USB cable has been inserted, it proceeds to S1610, and the CPU 216 executes the USB insertion processing described later. When the event is one that receives a job start notification from the smartphone 30 via the USB connector 214, it proceeds to S1612 and executes the job start processing described later. At this time, for example, a flag for determining the reception of the job start notification is set to ON. When the event is one that receives a job from the smartphone 30 via the USB connector 214 or the wireless LAN unit 210, it proceeds to S1614 and performs job execution processing. When the event is something else, it proceeds to S1716, and the CPU 216 performs processing according to the occurred event.

[0101] =Job Start Processing= Next, the job start processing executed in S1612 will be described with reference to FIG. 17. In the job start processing of S1612, first, in S1702, the CPU 216 checks the power supply situation, and in S1704, the CPU 216 determines whether the power supply amount from the smartphone 30 is insufficient for the job to be executed next. Since the specific processing contents of S1702 and S1704 are the same as those of S802 and S804 described above, the description thereof is omitted.

[0102] In S1704, if it is determined that the power supply amount is insufficient, the process proceeds to S1706, and the CPU 216 transmits the wireless LAN setting information to the smartphone 30. The specific processing content of S1706 is the same as that of S806 described above. After that, in S1708, the CPU 216 issues a notification prompting an improvement in the power supply capacity to the recording device 10. In S1708, for example, a notification screen 1902 for displaying a notification prompting an improvement in the power supply capacity to the recording device 10 is displayed on the display unit 240 or the touch panel 242 of the operation panel 208 (see FIG. 19(a)).

[0103] Here, a notification screen that displays a notification prompting an improvement in the power supply capacity to the recording device 10 will be described with respect to the display unit 240 and the like. FIG. 19 is a diagram showing a notification screen that displays a notification prompting an improvement in the power supply capacity to the recording device 10. (a) is an example of the notification screen that displays the notification, (b) is a modified example of the notification screen, and (c) is an example of a network selection screen. On the notification screen 1902, as an error message 1904, it is displayed that the power supply amount to the recording device 10 is insufficient. Also, on the notification screen 1902, as an instruction message 1906, a notification is displayed that prompts an improvement in the power supply capacity to the recording device 10 by removing the USB cable 32 that connects the recording device 10 and the smartphone 30. In the present embodiment, as a notification for improving the power supply capacity to the recording device 10, a notification prompting connection to the USB power adapter 34 using a USB cable of Power Delivery 3.0 (a connection standard and current value capable of executing all operations of the recording device 10) is displayed. Further, as a status message 1908, it is displayed that it is necessary to switch the communication between the recording device 10 and the smartphone 30 from USB communication via the USB cable to wireless LAN communication. Furthermore, on the notification screen 1902, a cancel button 1910 is displayed. When the cancel button 1910 is selected, the execution of the job that has been started is canceled. Note that on the notification screen 1902, a continue button may be displayed in the same manner as the notification screen 1012. Therefore, in this case, when the continue button is selected, the job will be executed with conditional operations without changing the connection destination via the USB cable 32.

[0104] Regarding the screen displayed on the display unit 240 or the like in S1708, it is not limited to the notification screen 1902, and like the notification screen 1912, instead of the status message 1908, a network selection button 1914 may be displayed (see Fig. 19(b)). The network selection button 1914 is displayed so that a desired network can be selected from a plurality of networks that can be used for the wireless connection between the recording device 10 and the smartphone 30. Specifically, when the network selection button 1914 is selected, a network selection screen 1922 on which selectable networks are displayed is displayed (see Fig. 19(c)).

[0105] On the network selection screen 1922, a list 1924 on which a plurality of selectable networks are displayed is shown. In Fig. 19(c), three available networks are displayed so that they can be selected, and the third selected network is highlighted. When there are many selectable networks and they cannot be displayed all at once in the list 1924, by selecting the triangular arrow buttons 1926 and 1928 displayed above and below the list 1924, the display within the list can be scrolled up and down.

[0106] When the selection button 1930 displayed on the network selection screen 1922 is selected in a state where a network displayed in the list 1924 is selected, the network selected in the list 1924 is determined as the selected network selected by the user. Thereafter, the display screen on the display unit 240 or the like returns to the notification screen 1902. Also, when the cancel button 1932 displayed on the network selection screen 1922 is selected, the display screen on the display unit 240 or the like returns to the notification screen 1902 without changing the selected network. Incidentally, when the selected network is changed on the network selection screen 1922, the recording device 10 transmits the wireless LAN setting information to the smartphone 30 again so as to connect using the newly selected network.

[0107] Return to FIG. 17. On the other hand, if it is determined in S1704 that the power supply amount is not insufficient, the process proceeds to S1710, and the CPU 216 transmits a job request to the smartphone 30 by USB communication to end this job start process. When ending the job start process, the flag that was set to ON when the notification of job start was received is initialized to OFF.

[0108] =USB Insertion Process= Next, the USB insertion process executed in S1610 will be described with reference to FIG. 18. In the USB insertion process, first, in S1802, the CPU 216 determines whether a notification of job start has been received. Since the specific processing content of S1802 is the same as that of S902 described above, the description thereof will be omitted. If it is determined in S1802 that the notification of job start has not been received, this USB insertion process ends. Also, if it is determined in S1802 that the notification of job start has been received, this USB insertion event is an event after the process for improving the power supply ability to the recording device 10 has been executed based on the notification screen displayed in S1708 of the job start process. Therefore, if it is determined in S1802 that the notification of job start has been received, the process proceeds to S1804, and the CPU 216 checks the power supply status. Since the specific processing content of S1804 is the same as that of S904 described above, the description thereof will be omitted. That is, in S1804, the power supply status in the state where the process for improving the power supply ability to the recording device 10 by the user has been performed is checked.

[0109] Next, in S1806, the CPU 216 determines whether the power supply amount is insufficient for the job to be executed next. Since the specific processing content of S1806 is the same as that of S906 described above, the description thereof is omitted. If it is determined in S1806 that the power supply amount is insufficient, it is determined that the improvement of the power supply capacity to the recording device 10 has not been appropriately executed, and the process returns to S1804. Also, if it is determined in S1806 that the power supply amount is not insufficient, it is determined that the execution of the job has become possible, and the process proceeds to S1808. In S1808, the CPU 216 activates the wireless LAN unit 210 of the recording device 10 in a state where it can be connected with the wireless LAN connection information transmitted in S1706, and waits for the establishment of a wireless LAN connection with the smartphone 30.

[0110] Here, the wireless LAN setting information is transmitted from the recording device 10 to the smartphone 30 so that the smartphone 30 performs connection processing according to the wireless LAN setting information. However, the present invention is not limited to this. The recording device 10 may request the wireless LAN setting information from the smartphone 30 and establish a wireless LAN connection from the recording device 10 side using the wireless LAN setting information received from the smartphone 30 as a response. Note that various connection forms can be used for the wireless LAN connection between the recording device 10 and the smartphone 30. For example, a wireless LAN infrastructure mode connection 38 that connects via the wireless LAN access point 18 can be used. Alternatively, a Wi-Fi (registered trademark) direct connection (direct connection 40) in which the recording device 10 operates as an access point and the smartphone 30 participates therein can also be used. What connection form and what connection parameters are used are specified by the wireless LAN setting information.

[0111] When a wireless LAN connection is established, communication between the recording device 10 and the smartphone 30 can be performed using the wireless LAN. As a result, even if the USB cable 32 is removed from the recording device 10, the communication state between the recording device 10 and the smartphone 30 is maintained. Therefore, when the wireless LAN connection is established in S1808, the process proceeds to S1810, and the CPU 216 transmits a job request to the smartphone 30 by wireless LAN communication and ends this USB insertion process. Note that after transmitting the job request, a flag for determining reception of a job start notification is initialized to OFF.

[0112] <Flow when improving the power supply capacity to the recording device> Next, the flow when improving the power supply capacity to the recording device 10 in the recording device 10 according to the present embodiment will be described. FIG. 20 is a sequence diagram showing the flow when switching the power supply to the recording device 10 according to the present embodiment from the smartphone 30 via the USB cable 32 to the USB power adapter 34 via a USB cable showing a higher power supply capacity. In the description using FIG. 20, for ease of understanding, the case of executing a recording job will be described.

[0113] First, in S2002, the user 2000 connects between the recording device 10 and the smartphone 30 with the USB cable 32. As a result, in S2004, a connection via the USB cable 32 is established between the recording device 10 and the smartphone 30, and USB communication becomes possible. Next, in 2006, the user 2000 operates the smartphone 30 to input a recording job and instruct its execution. In response to this, in S2008, the smartphone 30 transmits a recording job start notification to the recording device 10.

[0114] When the recording device 10 receives a notification of the start of a recording job, in S2010, it checks the power supply status (corresponding to S1702 and S1704). Here, it is assumed that as a result of checking the power supply status, the power supply amount is insufficient and an improvement in the power supply capacity to the recording device 10 is required. Therefore, in this check of the power supply status, it is determined that the power supply amount is insufficient. When the recording device 10 determines that the power supply amount is insufficient, in S2012, the recording device 10 transmits wireless LAN setting information to the smartphone 30 (corresponding to S1706). Here, it suffices that the wireless LAN setting information can be exchanged and shared between the recording device 10 and the smartphone 30. Therefore, it may be configured such that the recording device 10 requests the wireless LAN setting information from the smartphone, and the smartphone 30 transmits the wireless LAN setting information to the recording device 10. Therefore, in this embodiment, the wireless LAN setting information is exchanged by USB communication.

[0115] Next, in S2014, the recording device 10 displays a notification screen 1902 on the display unit 240 of the operation panel 208 (corresponding to S1708). The user 2000 checks the notification screen 1902 and, in S2016, executes a process to improve the power supply capacity to the recording device 10. Specifically, the USB cable 32 connecting the recording device 10 and the smartphone 30 is removed from the recording device 10, and the recording device 10 is connected to a USB power adapter 34 via, for example, a PowerDelivery 3.0 USB cable. As a result, the USB communication that has been possible since the recording device 10 and the smartphone 30 were connected by the USB cable 32 in S2004 is disconnected, and the communication relationship between the recording device 10 and the smartphone 30 is temporarily severed.

[0116] After the connection between the recording device 10 and the USB power adapter 34 is established, a USB insertion event occurs. In S2018, the recording device 10 checks the power supply status (corresponding to S1802 and S1804). Here, it shows the case where, as a result of executing the process of improving the power supply capacity to the recording device 10, a power supply amount sufficient to execute a job can be ensured. If it is determined that the power supply amount is not insufficient as a result of checking the power supply status (corresponding to S1806), in S2020, based on the wireless LAN setting information, a wireless LAN connection is established between the smartphone 30 and the recording device 10 (corresponding to S1808). When the wireless LAN connection is established, thereafter, the wireless LAN communication becomes possible, and the communication relationship between the recording device 10 and the smartphone 30 is restored.

[0117] When the wireless LAN connection is thus established, in S2022, the recording device 10 transmits a recording job request to the smartphone 30 (corresponding to S1810). In response to this, in S2024, the smartphone 30 transmits a recording job to the recording device 10. Then, in S2026, the recording device 10 performs recording based on the recording job, and thereafter, in S2028, the recording device 10 transmits a notification to the smartphone 30 indicating that the recording based on the recording job has ended.

[0118] In this embodiment, as described above, in S2014, the notification screen 1912 may be displayed on the display unit 240. In this case, when the network is changed on the notification screen 1912, the wireless LAN setting information is resent based on the change. When the USB cable 32 is removed in S2016, the recording device 10 cannot transmit the wireless LAN setting information to the smartphone 30. Therefore, at the timing when the wireless LAN setting information cannot be transmitted, the network selection button 1914 on the notification screen 1912 is fixed (unselectable), or the network selection screen 1922 is invalidated.

[0119] <Operational Effects> As described above, in the recording apparatus 10 according to the present embodiment, when it is determined that a job cannot be executed based on the power supply amount from the smartphone 30, the communication mode with the smartphone 30 is changed from USB communication to wireless LAN communication. Further, at this time, a notification is made to prompt improvement of the power supply ability to the recording apparatus 10. Thereby, the same operational effects as those of the first embodiment can be achieved.

[0120] Also, in the recording apparatus 10 according to the present embodiment, on the notification screen displayed before the wireless LAN connection is established, the network to be used can be selected. Thereby, the user can perform a wireless LAN connection using a desired network. Further, since the wireless LAN connection is established after the process of improving the power supply ability to the recording apparatus 10, even if the USB cable is removed and left for a long time, the wireless LAN connection is not established, so that unnecessary power consumption can be suppressed.

[0121] (Other Embodiments) Note that the above-described embodiment may be modified as shown in the following (1) to (6).

[0122] (1) In the above-described embodiment, in order to improve or ensure the power supply capacity to the recording apparatus 10, the recording apparatus 10 was changed to a USB power adapter 34 via a USB cable. However, the terminal device connected via the USB cable is not limited to the USB power adapter 34, and any terminal device may be used as long as it can sufficiently secure the power capacity. As such a terminal device, for example, a PC terminal that can be powered by AC connection can be used. Also, even if it is a battery-driven terminal device, if the power capacity is sufficiently large, it can be used as the terminal device of the connection destination after the change. Examples of the battery-driven terminal device include a mobile battery and a notebook PC. Further, in the above-described embodiment, the smartphone 30 as the information processing apparatus was connected to the recording apparatus 10 in a state where communication and power supply are possible, but it is not limited thereto. As such an information processing apparatus, a PC terminal may be used, or a known portable terminal including a tablet-type terminal may be used.

[0123] (2) In the above-described second embodiment, in the job transmission process, after issuing a notice to prompt ensuring the power supply capacity to the recording apparatus 10 in S1212, it was determined whether to supply power to the power unit 422 in S1214, but it is not limited thereto. Even if there is no power supply to the power unit 422, by removing the USB cable 32 connected to the recording apparatus 10 from the smartphone 30, the power consumption of the smartphone 30 decreases. This is because the power consumption decreases by the amount of power supply from the smartphone 30 to the recording apparatus 10 disappearing. Therefore, if it is expected that the shortage of the power stored in the smartphone 30 can be resolved only by removing the USB cable 32, the process of S1214 may be omitted.

[0124] (3) Although not particularly described in the above embodiments, the recording device 10 can record on a recording medium using a known recording method such as an inkjet method. Also, in the above embodiment, the recording device 10 is configured to be wired-connected and wireless-connected to an information processing device such as a smartphone 30 via a USB connector 214 and a wireless LAN unit 210, but it is not limited to this. The recording device 10 may be wired-connected and wireless-connected to various information processing devices via various known interfaces. Examples of known wired interfaces include a wired LAN interface. When using a wired LAN interface, the LAN cable will use a standard that can supply power together with communication, such as PoE (Power of Ethernet).

[0125] (4) In the above first and third embodiments, as a notification to improve the power supply ability to the recording device 10, a notification to prompt connection to the USB power adapter 34 using a PowerDelivery3.0 USB cable is made, but it is not limited to this. For example, a notification to replace the USB cable 32 with a USB cable indicating a power supply ability (connection standard, current amount) capable of executing an operation based on a job may be made. In this case, for example, a USB cable indicating a power supply ability capable of executing an operation based on a job is shown, and a notification to prompt connection between the recording device 10 and the smartphone 30 using such a USB cable is made.

[0126] (5) The present invention can also be realized by supplying a program that realizes one or more functions of the above embodiments to a system or device via a network or a recording medium, and having one or more processors in the computer of the system or device read and execute the program. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

[0127] (6) The above embodiments and the various forms shown in (1) to (5) above may be combined as appropriate.

[0128] The disclosure of the above embodiment includes the following configurations and methods. (Configuration 1) A recording device that can communicate with a terminal device capable of sending a job for executing an operation via a wired interface and a wireless interface, and is operable by power supply from the terminal device connected via the wired interface, determination means for determining whether an operation based on the job is executable based on the power supply capacity from the terminal device connected via the wired interface; connection control means for communicably connecting to the terminal device via the wireless interface when the determination means determines that the operation based on the job is not executable; notification control means for giving a notification to prompt improvement of the power supply capacity to the recording device when the determination means determines that the operation based on the job is not executable, characterized in that the recording device has the above. (Configuration 2) The recording device according to Configuration 1, wherein after being connected to the terminal device via the wireless interface by the connection control means, the notification by the notification control means is performed. (Configuration 3) The recording device according to Configuration 1, wherein after the power supply capacity to the recording device is improved, the recording device is connected to the terminal device via the wireless interface by the connection control means. (Configuration 4) The recording device according to any one of Configurations 1 to 3, wherein when information regarding the start of the job is received from the terminal device, the determination means performs the determination. (Configuration 5) After the notification is given and the power supply capacity to the recording device is improved, the determination means determines whether an operation based on the job is executable based on the power supply amount after the improvement of the power supply capacity. The recording apparatus according to configuration 4, wherein when the determination means determines that the operation based on the job is executable, a request for the job is made to the terminal device. (Configuration 6) Further comprising display means capable of displaying information, The recording apparatus according to configuration 2, wherein the notification is notified via a screen displayed on the display means. (Configuration 7) On the screen, a button capable of executing an operation based on the job is displayed without improving the power supply ability to the recording apparatus, The recording apparatus according to configuration 6, wherein when the button is selected, the operation based on the job is conditionally executed. (Configuration 8) Further comprising display means capable of displaying information, The recording apparatus according to configuration 3, wherein the notification is notified via a screen displayed on the display means. (Configuration 9) The recording apparatus according to configuration 8, wherein on the screen, a network used when connecting to the terminal device via the wireless interface can be selected. (Configuration 10) The notification prompting improvement of the power supply ability to the recording apparatus is a notification prompting connection between the recording apparatus and the terminal device or another terminal device different from the terminal device by a cable having a power supply ability capable of executing an operation based on the job, according to any one of configurations 1 to 9. (Configuration 11) The notification prompting improvement of the power supply ability to the recording apparatus is a notification prompting connection of the recording apparatus to a power adapter via a cable having a power supply ability capable of executing an operation based on the job, according to any one of configurations 1 to 9. (Configuration 12) The recording apparatus according to any one of configurations 1 to 11, wherein the wired interface is a USB interface. (Configuration 13) The recording apparatus according to any one of Configurations 1 to 11, wherein the wired interface is a wired LAN interface. (Configuration 14) The recording apparatus according to any one of Configurations 1 to 13, wherein the wireless interface is a wireless LAN interface. (Configuration 15) The recording apparatus according to any one of Configurations 1 to 14, wherein setting information for connecting to the terminal device via the wireless interface is exchanged via the wired interface. (Configuration 16) A control method for a recording apparatus that can communicate with a terminal device capable of transmitting a job for executing an operation via a wired interface and a wireless interface, and is operable by power supplied from the terminal device connected via the wired interface, a determination step of determining whether an operation based on the job is executable based on the power supply capacity from the terminal device connected via the wired interface; a connection control step of communicably connecting to the terminal device via the wireless interface when it is determined in the determination step that the operation based on the job is not executable; a notification control step of performing a notification to prompt improvement of the power supply capacity to the recording apparatus when it is determined in the determination step that the operation based on the job is not executable, the control method for a recording apparatus being characterized by including these steps. (Configuration 17) An information processing apparatus that can communicate with a recording apparatus via a wired interface and a wireless interface, can supply power to the recording apparatus connected via the wired interface, and can transmit a job for executing an operation to the recording apparatus, a detection means capable of detecting the amount of power stored in the power storage means; a connection control means for communicably connecting to the recording apparatus via the wireless interface when the detected amount of power stored detected by the detection means is below a threshold value; When the power storage amount detected by the detection means is below the threshold value, there is provided notification control means for ensuring power supply to the recording device and for performing a notification prompting charging to the information processing device. The information processing device is characterized by this. (Configuration 18) When connected to the recording device via the wired interface, the information processing device according to Configuration 17, characterized in that detection is performed by the detection means. (Configuration 19) After performing the above notification and during charging, the information processing device according to Configuration 18, characterized in that a job is transmitted to the recording device. (Configuration 20) It further has display means capable of displaying information. The information processing device according to any one of Configurations 17 to 19, characterized in that the notification is made via a screen displayed on the display means.

Explanation of Signs

[0129] 10 Recording device 30 Smartphone 216 CPU

Claims

1. A recording device that can communicate with a terminal device capable of sending a job for executing an operation via a wired interface and a wireless interface, and is operable by power supplied from the terminal device connected via the wired interface, judgment means for judging whether the operation based on the job can be executed based on the power supply capacity from the terminal device connected via the wired interface; connection control means for communicably connecting to the terminal device via the wireless interface when the judgment means judges that the operation based on the job cannot be executed; notification control means for giving a notification to prompt improvement of the power supply capacity to the recording device when the judgment means judges that the operation based on the job cannot be executed. The recording device is characterized by comprising the above.

2. The recording device according to claim 1, wherein after being connected to the terminal device via the wireless interface by the connection control means, the notification by the notification control means is given.

3. The recording device according to claim 1, wherein after the power supply capacity to the recording device is improved, it is connected to the terminal device via the wireless interface by the connection control means.

4. The recording device according to claim 1, wherein when information regarding the start of the job is received from the terminal device, the judgment is made by the judgment means.

5. When the power supply capacity to the recording device is improved after the notification is given, the judgment means judges whether the operation based on the job can be executed based on the power supply capacity after the improvement of the power supply capacity, The recording device according to claim 4, wherein when the judgment means judges that the operation based on the job can be executed, a request for the job is made to the terminal device.

6. further comprising display means capable of displaying information, The recording device according to claim 2, wherein the notification is given via a screen displayed on the display means.

7. On the screen, a button capable of executing the operation based on the job without improving the power supply capacity to the recording device is displayed, The recording device according to claim 6, wherein when the button is selected, the operation based on the job is conditionally executed.

8. further comprising display means capable of displaying information, The recording apparatus according to claim 3, wherein the notification is notified via a screen displayed on the display means.

9. The recording apparatus according to claim 8, wherein a network used when connecting to the terminal device via the wireless interface can be selected on the screen.

10. The notification prompting improvement of the power supply ability to the recording apparatus is a notification prompting connection between the recording apparatus and the terminal device or another terminal device different from the terminal device by a cable having a power supply ability capable of executing an operation based on the job, according to any one of claims 1 to 9.

11. The notification prompting improvement of the power supply ability to the recording apparatus is a notification prompting connection of the recording apparatus to a power adapter via a cable having a power supply ability capable of executing an operation based on the job, according to any one of claims 1 to 9.

12. The recording apparatus according to any one of claims 1 to 9, wherein the wired interface is a USB interface.

13. The recording apparatus according to any one of claims 1 to 9, wherein the wired interface is a wired LAN interface.

14. The recording apparatus according to any one of claims 1 to 9, wherein the wireless interface is a wireless LAN interface.

15. The recording apparatus according to any one of claims 1 to 9, wherein setting information for connecting to the terminal device via the wireless interface is transmitted and received via the wired interface.

16. A control method for a recording apparatus that can communicate with a terminal device capable of transmitting a job for executing an operation via a wired interface and a wireless interface, and is operable by power supply from the terminal device connected via the wired interface. A determination step of determining whether an operation based on the job can be executed based on the power supply ability from the terminal device connected via the wired interface. A connection control step of communicably connecting to the terminal device via the wireless interface when it is determined in the determination step that the operation based on the job cannot be executed. When it is determined in the determination step that the operation based on the job is not executable, a notification control step of giving a notification prompting improvement of the power supply ability to the recording device. A control method for a recording device, characterized by comprising:

17. An information processing apparatus that can communicate with a recording device via a wired interface and a wireless interface, can supply power to the recording device connected via the wired interface, and can transmit a job for executing an operation to the recording device, Detection means capable of detecting the amount of power stored in the power storage means; Connection control means for communicably connecting to the recording device via the wireless interface when the detected power storage amount detected by the detection means is below a threshold value; Notification control means for giving a notification prompting ensuring the power supply ability to the recording device and charging the information processing apparatus when the detected power storage amount detected by the detection means is below a threshold value. An information processing apparatus, characterized by comprising:

18. The information processing apparatus according to claim 17, characterized in that when connected to the recording device via the wired interface, detection is performed by the detection means.

19. The information processing apparatus according to claim 18, characterized in that a job is transmitted to the recording device when charged after the notification is given.

20. Further comprising display means capable of displaying information, The information processing apparatus according to any one of claims 17 to 19, characterized in that the notification is given via a screen displayed on the display means.

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