JP2014081840A - Transaction processor and control method for transaction processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide equipment for suppressing an increase in a space occupied by a power supply device in equipment, and for suppressing power consumption in the power supply device while avoiding the complication of control.SOLUTION: A transaction processor includes: an input part; a detection part for detecting the existence of a user within a predetermined range; a power source part for supplying a supplied power to a plurality of function parts in the transaction processor; and a control part for setting the operation mode of the transaction processor to a normal mode in a period in which the detection part detects the existence of the user, and for setting the operation mode of the transaction processor to a power saving mode in which a power to be consumed is smaller than that in the normal mode in a part of a period in which the detection part does not detect the existence of the user. The power source part includes: a power factor improvement circuit for improving the power factor of a power and a circuit control part for allowing the supplied power to pass through the power factor improvement circuit in the normal mode, and for not allowing the supplied power to pass through the power factor improvement circuit in the power saving mode.

Description

  The present invention relates to a transaction processing apparatus.

  As a background art in this technical field, there is JP 2012-65391 A (Patent Document 1). This gazette states that “the power factor is improved and the occurrence of loss is suppressed. The power supply device has a first power factor when the input power from the commercial AC power source to the load is a first input value indicating a lower limit value. Is a first power factor improving unit that is greater than or equal to a predetermined value, and a second power factor that is greater than a predetermined value when the input power is a second input value that is greater than the first input value. The second power factor improving unit and the first power factor improving unit are selected when the input power is smaller than the threshold, and the second power factor improving unit is selected when the input power is larger than the threshold. For example, a switch part for

JP 2012-65391 A

  In the above-mentioned Patent Document 1, in a device equipped with a power supply device provided with a plurality of power factor improvement units having different power consumption, the power factor improvement unit is switched according to the power consumption of the entire device, and the power consumption efficiency of the device is changed. The technique which improved is described. However, in the device of Patent Document 1, there is a possibility that problems such as an increase in space occupied by the power supply device in the device and a complicated control may occur. Therefore, the present invention provides a device that suppresses an increase in the space occupied by the power supply device in the device and improves the power consumption efficiency of the power supply device without complicating the control.

  In order to solve the above-described problems, the present invention provides a transaction processing apparatus, an input unit that receives an instruction from a user, and detection that detects the presence of a user within a predetermined range facing the transaction processing apparatus. A power supply unit that supplies power supplied from a commercial power source to a plurality of functional units including the input unit and the detection unit in the transaction processing device, and the detection unit detects the presence of a user The transaction processing device is set to the normal mode during the period, and the operation mode of the transaction processing device is set to at least a part of the period during which the detection unit does not detect the presence of the user. A control unit configured to set a power saving mode in which power consumed in at least one of the plurality of functional units to which power is supplied in the normal mode is smaller than that in the normal mode, The power supply unit includes a power factor correction circuit for improving the power factor of the supplied power, and passes the power supplied from the commercial power source through the power factor correction circuit in the normal mode and the commercial power in the power saving mode. A circuit control unit that prevents power supplied from a power source from passing through the power factor correction circuit.

  ADVANTAGE OF THE INVENTION According to this invention, the power consumed by a power factor improvement circuit can be suppressed and the transaction processing apparatus which improved efficiency can be provided. Problems, configurations, and effects other than those described above will become apparent from the following description of embodiments.

  The present invention can also be realized in various modes other than the transaction processing apparatus.

It is explanatory drawing which shows schematic structure of the cash transaction processing system 100 in the Example of this invention. It is explanatory drawing which shows the internal structure of ATM10 roughly. 3 is an explanatory diagram showing details of an internal configuration of a power supply unit 30. FIG. It is explanatory drawing which shows the flow of the operation mode change process in ATM10. It is explanatory drawing which shows an example of the relationship between the output electric power in the power supply part 30, and efficiency.

Hereinafter, examples will be described with reference to the drawings.
A. Example:
A-1. Configuration of cash transaction processing system:
A-2. Operation mode change processing in ATM:
B. Variations:

A. Example:
A-1. Configuration of cash transaction processing system:
FIG. 1 is an explanatory diagram showing a schematic configuration of a cash transaction processing system 100 according to an embodiment of the present invention. As shown in FIG. 1, a cash transaction processing system 100 includes an automatic cash transaction apparatus (hereinafter also referred to as “ATM”) 10 capable of trading cash such as banknotes and coins, a host computer 50 as a server, an ATM 10, and a host computer. 50, and a network NT that connects to the network NT. Although FIG. 1 shows that the host computer 50 is connected to one ATM 10 via the network NT, the host computer 50 may be connected to a plurality of ATMs 10.

  FIG. 2 is an explanatory diagram schematically showing the internal configuration of the ATM 10. The ATM 10 is a device that is installed in, for example, financial institutions, retail stores, and public facilities, and performs predetermined transactions such as deposits and withdrawals based on user operations. As shown in FIG. 1 and FIG. 2, the ATM 10 includes a card mechanism 11, a statement slip mechanism 12, a bankbook mechanism 13, a banknote input / output mechanism 14, a coin input / output mechanism 15, a touch panel 16, and a customer as functional units. A sensor 17, a biometric authentication mechanism 18, a status display lamp 19, a welcome lamp 20, a line connection unit 22, and an illumination unit 21 are provided. The ATM 10 also includes a power supply unit 30, a battery 23, and a control unit 60. The ATM 10 is supplied with power from a connected commercial power supply 40. In FIG. 1, the control unit 60, the power supply unit 30, the battery 23, the illumination unit 21, and the line connection unit 22 illustrated in FIG. 2 are not illustrated.

  The touch panel 16 is a pointing device that acquires coordinates of a contact position with a user's finger or the like, and receives an instruction from the user by touching the finger or the like. The touch panel 16 corresponds to the input unit in the present invention. Moreover, the input part which receives the instruction | indication from a user may be an aspect which receives the instruction | indication from a user by recognizing a user's audio | voice in other embodiment. The card mechanism 11 receives and discharges various cards (for example, a credit card and a cash card). The card mechanism 11 performs processing of reading and writing operations of data recorded on a magnetic stripe or IC chip included in the card. The statement slip mechanism 12 prints the transaction contents of the user in the cash transaction processing system 100 on the statement slip, and discharges the printed statement. The bankbook mechanism 13 accepts and discharges the bankbook of the user, reads the bankbook information, and prints the transaction contents on the bankbook.

  The bill insertion / removal mechanism 14 receives and discharges bills and identifies bills. The coin insertion / removal mechanism 15 receives and discharges coins and identifies coins. Each of the bill loading / unloading mechanism 14 and the coin loading / unloading mechanism 15 includes a shutter. By opening the shutters of the bill loading / unloading mechanism 14 and the coin loading / unloading mechanism 15, a user and a staff member of a financial institution can insert and remove bills and coins.

  The customer sensor 17 is a reflective infrared sensor that detects whether or not there is a user within a predetermined range facing the ATM 10. The customer sensor 17 can detect whether there is a user by irradiating infrared rays and receiving infrared rays reflected by the users. The customer sensor 17 corresponds to the detection unit in the present invention.

  The biometric authentication mechanism 18 reads the user's vein and performs authentication by comparing the user's vein with vein data stored in a card inserted in the card mechanism 11. When the customer sensor 17 detects the user, the status display lamp 19 displays a transaction type that the user can trade.

  The power supply unit 30 receives supply of power from the commercial power supply 40 that is an external power supply, and supplies power to each functional unit such as the touch panel 16 and the customer sensor 17. The battery 23 stores the power supplied from the commercial power supply 40 to the power supply unit 30 and supplies the stored power to the power supply unit 30 in an emergency such as a power failure. The control unit 60 is configured by a CPU, a memory, and the like, and performs various processes when the CPU and the memory read programs, data, and the like. The control unit 60 controls each functional unit and performs control to supply the power supplied from the power supply unit 30 to each functional unit via a predetermined bus. When the customer sensor 17 detects the user, the welcome lamp 20 is turned on or blinked by a control signal from the control unit 60. The illumination unit 21 is a flicker lamp or ATM 10 illumination, and is turned on and off by a control signal from the control unit 60. The line connection unit 22 is composed of a LAN card or the like, and is connected to the network NT to transmit / receive various information to / from the host computer 50.

  FIG. 3 is an explanatory diagram showing details of the internal configuration of the power supply unit 30. As shown in FIG. 3, the power supply unit 30 includes a bridge diode 301 that performs rectification, a power factor correction circuit 310, a smoothing capacitor 302 that smoothes current, a DC / DC converter 303 that is a transformer, and a power supply circuit. A control unit 304 and a bypass circuit 320 are included. The power factor correction circuit 310 includes a choke coil 311, a diode 312, a MOSFET 313, and a power factor correction circuit control unit 314. The bypass circuit 320 has a switch element 321, and is a circuit that is closed when the switch element 321 is on and is opened when the switch element 321 is off. The switch element 321 is formed by a relay circuit.

  The electric power supplied from the commercial power supply 40 is supplied to the terminal T1 and the terminal T2 via the power supply unit 30. The DC / DC converter 303 is connected to each functional unit in the ATM 10 via a terminal T1 and a terminal T2. The power supply circuit control unit 304 is connected to the control unit 60 via the terminal T3, and controls on / off of the switch element 321 based on a control signal transmitted from the control unit 60. The power factor correction circuit control unit 314 controls on / off of the MOSFET 313 based on a control signal from the power supply circuit control unit 304. The power factor correction circuit 310 is a circuit that is closed when the MOSFET 313 is on, and a circuit that is open when the MOSFET 313 is off.

  In a state where the power factor correction circuit 310 is closed and the bypass circuit 320 is open, the power supplied from the commercial power supply 40 is supplied to each functional unit via the power factor correction circuit 310 in the power supply unit 30. In a state where the power factor correction circuit 310 is opened and the bypass circuit 320 is closed, the power supplied from the commercial power supply 40 is supplied to each functional unit via the bypass circuit without passing through the power factor correction circuit 310. Is done. In the present embodiment, control such that the power factor correction circuit 310 and the bypass circuit 320 are both closed or opened together is not performed. Note that although there are a plurality of terminals T1 and T2 because they are connected to each functional unit, illustration thereof is omitted. The control unit 60, the power supply circuit control unit 304, and the power factor correction circuit control unit 314 correspond to the circuit control unit in the present invention.

A-2. Operation Mode Change Processing in ATM FIG. 4 is an explanatory diagram showing the flow of operation mode change processing in ATM 10. FIG. 4 shows a flow in which the operation mode of the ATM 10 shifts from the normal mode to the power saving mode. The normal mode is an operation mode of the ATM 10 in which the user can perform various transactions, and is a state where all the functional units in the ATM 10 are driven. The power saving mode is an operation mode of the ATM 10 when the user does not make a transaction, and is a state in which some of the functional units in the ATM 10 are driven and the remaining driving units are stopped.

  First, when the user is making a transaction at the ATM 10, the customer sensor 17 detects the user, and the control unit 60 operates the ATM 10 in the normal mode (step S210). In the normal mode, the control unit 60 transmits a control signal to the power supply circuit control unit 304 so that the power supplied from the commercial power supply 40 is supplied to each functional unit via the power factor correction circuit 310. Therefore, power whose power factor is improved by the power supply unit 30 is supplied to each functional unit in the ATM 10.

  Next, the customer sensor 17 determines whether or not the user is still detected (step S220). When it is determined that the customer sensor 17 continues to detect the user (step S220: YES), the control unit 60 keeps the ATM 10 operating in the normal mode. When the user ends the transaction and leaves the ATM 10, and it is determined that the customer sensor 17 does not detect the user (step S220: NO), the control unit 60 detects that the customer sensor 17 detects the user. It is determined whether or not 30 seconds have passed in a state where no operation is performed (step S230). In the process of step S230, when it is determined that 30 seconds have not yet elapsed (step S230: NO), the control unit 60 continues to operate the ATM 10 in the normal mode.

  If it is determined in step S230 that 30 seconds have elapsed (step S230: YES), the controller 60 shifts the ATM 10 to the power saving mode and operates it (step S240). In the power saving mode, the control unit 60 drives the customer sensor 17, the status display lamp 19, the power supply unit 30, and the battery 23 among the functional units in the ATM 10 in the same manner as in the normal mode, and the remaining functional units (for example, The card mechanism 11) is not driven. That is, in the power saving mode, the control unit 60 is driven in a state where power consumption in at least one functional unit among the plurality of functional units is smaller than that in the normal mode. Therefore, in ATM 10, the total power consumption in the power saving mode is reduced as compared with the total power consumption in the normal mode. In addition, the power consumption of the entire ATM 10 in the power saving mode is smaller than the reference power that is required to improve the power factor in order to suppress harmonics. Therefore, in the power saving mode, unlike the normal mode, the control unit 60 needs to pass the power to the power factor improvement circuit 310 of the power supply unit 30 when supplying the power supplied from the commercial power supply 40 to each functional unit. There is no. Therefore, in the power saving mode, the control unit 60 transmits a control signal to the power supply circuit control unit 304 so that the power supplied from the commercial power supply does not pass through the power factor correction circuit 310 but passes through the bypass circuit 320. . In the power saving mode, since the power supplied from the commercial power supply 40 does not pass through the power factor correction circuit 310, power consumed by the choke coil 311 and the diode 312 in the power factor correction circuit 310 is not generated, and the ATM 10 as a whole. Power consumption can be reduced.

  FIG. 5 is an explanatory diagram illustrating an example of a relationship between output power and efficiency in the power supply unit 30. In FIG. 5, the horizontal axis represents the power supply unit output power output from the power supply unit, and the vertical axis represents the power supply unit efficiency indicating the ratio of the output power to the input power from the commercial power supply 40 in the power supply unit 30. Yes. In the period Tm1 in which the value of the power supply unit output power is equal to or less than the predetermined value Pth, the ATM 10 is operating in the power saving mode, and in the period Tm2 in which the value of the power supply unit output power is greater than the predetermined value Pth, the ATM 10 is in the normal mode. It is operating. Curves C1 and C2 shown in FIG. 5 are power supply unit efficiency characteristic curves showing the relationship between power supply unit output power and power supply unit efficiency (hereinafter also referred to as “output efficiency relationship”) CR.

  A curve C1 is a power supply unit efficiency characteristic curve in the power saving mode in the present embodiment, and a curve C2 is a power factor improvement circuit 310 in which the power supplied from the commercial power supply 40 is also in the power saving mode as in the normal mode. It is a power supply part efficiency characteristic curve at the time of being supplied to each function part via.

  The power consumed in the power factor correction circuit 310 varies depending on the voltage applied to the power factor correction circuit 310. When the power supply unit output power is large, the ratio of the power consumption in the power factor correction circuit 310 to the power supply unit output power is small. Therefore, as shown in FIG. 5, the output efficiency relationship CR is a curve that rises to the right as shown by the curves C1 and C2. In the present embodiment, in the power saving mode, the power supplied from the commercial power supply 40 does not pass through the power factor correction circuit 310, so that there is no power consumed by the power factor correction circuit 310, and the curve C2 as shown by the curve C1. Compared with the power supply unit efficiency in the period Tm1 can be improved.

  When the customer sensor 17 does not continue to detect the user when the ATM 10 is operating in the power saving mode (step S250: NO in FIG. 4), the control unit 60 continues to operate the ATM 10 in the power saving mode. to continue. When the customer sensor 17 detects the user in the power saving mode (step S250: YES), the control unit 60 shifts the ATM 10 to the normal mode and operates (step S260).

  As described above, the ATM 10 in this embodiment includes the touch panel 16 that receives an instruction from the user and the customer sensor 17 that detects whether or not there is a user within a predetermined range facing the ATM 10. It has been. The ATM 10 includes a power supply unit 30 that supplies power supplied from the commercial power supply 40 to a plurality of functional units such as the touch panel 16 and the customer sensor 17. The control unit 60 of the ATM 10 operates the ATM 10 in the normal mode when the customer sensor 17 detects the user, and operates in the power saving mode when 30 seconds elapses without the customer sensor 17 detecting the user. The power supply unit 30 includes a power factor correction circuit 310 that improves the power factor of the electric power supplied from the commercial power supply 40. In addition, the control unit 60, the power supply circuit control unit 304, and the power factor improvement circuit control unit 314 cause the power supplied from the commercial power supply 40 to pass through the power factor improvement circuit 310 in the normal mode and in the power saving mode. The improvement circuit 310 is not routed. Therefore, in ATM10 in a present Example, the electric power consumed by the power factor improvement circuit 310 can be reduced in a power saving mode, and the efficiency of the power consumption in ATM10 can be improved. Further, since the efficiency can be improved by not passing through the power factor correction circuit 310, a power factor improvement circuit or the like different from the power factor improvement circuit 310 is not required, and space saving of the power supply unit 30 in the ATM 10 is realized. be able to. Moreover, since the control part 60 can improve the efficiency in ATM10 only by performing the control of whether it passes through the power factor improvement circuit 310, complicated control is not required.

  Moreover, in ATM10 in a present Example, in the power saving mode, the control part 60 has stopped the function part, without supplying electric power to one part function part. Therefore, in this ATM 10, since the power supplied to the functional unit is controlled on / off, power control by shifting to a different operation mode can be easily performed.

  In the ATM 10 in this embodiment, the power supply unit 30 includes a bypass circuit 320 that does not pass through the power factor correction circuit 310 and a switch element 321 that opens and closes the bypass circuit 320. The control unit 60 closes the power factor improvement circuit 310 and opens the bypass circuit 320 in the normal mode, and opens the power factor improvement circuit 310 and closes the bypass circuit 320 in the power saving mode. Therefore, in the ATM 10 according to the present embodiment, in the power saving mode, the power factor correction circuit can be simply achieved by the on / off control in the switch element 321 in the bypass circuit 320 and the power factor correction circuit control unit 314 in the power factor correction circuit 310. A circuit that does not go through 310 can be formed.

  Moreover, in ATM10 in a present Example, when it determines with 30 seconds having passed without the customer sensor 17 detecting a user, the control part 60 transfers ATM10 from normal mode to power saving mode. Make it work. Therefore, in this ATM10, since a user completes a transaction and shifts to a power saving mode after a while, for example, when a plurality of users are lined up for a transaction in the ATM10, the user changes. In addition, since the operation mode does not shift each time, the convenience is improved. In addition, a stable transaction can be provided to the user without being influenced by an instantaneous malfunction or noise in the customer sensor 17.

B. Variations:
In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Also, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to a part of the configuration of one embodiment. . It is also possible to add, delete, and replace the configuration of each embodiment.

  Each of the above-described configurations, functions, processing units, processing means, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit. Each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor. Information such as programs, tables, and files for realizing each function can be stored in a recording device such as a memory, a hard disk, and an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, and a DVD.

B1. Modification 1:
In the above embodiment, in the power saving mode, some functional units are stopped without being supplied with power. However, the mode for reducing the power consumed by the functional units is ON / OFF such as supplying / not supplying power. The present invention is not limited to off control, and various modifications are possible. For example, in the power saving mode, the power supplied to the lighting unit 21 may be reduced by reducing the brightness of the lighting unit 21, or the power supplied to the touch panel 16 by reducing the luminance of the touch panel 16. Power may be reduced.

  Moreover, in the said Example, it was set as the aspect which the customer sensor 17 which is an infrared sensor detects a user, However, About the method to detect a user, it is not restricted to this, A various deformation | transformation is possible. For example, for the customer sensor 17, various sensors such as an ultrasonic reflection type sensor and an image sensor may be used. Further, in the power saving mode, when the touch panel 16 is driven by driving the touch panel 16 without driving the customer sensor 17 and the touch panel 16 receives an instruction from the user, the ATM 10 shifts to the normal mode. Good. Further, when the card mechanism 11 accepts a card or when the passbook mechanism 13 accepts a passbook, the ATM 10 may shift from the power saving mode to the normal mode.

B2. Modification 2:
In the above embodiment, whether or not the ATM 10 passes through the power factor correction circuit 310 is switched by the on / off automatic control of the switch element 321 and the MOSFET 313. However, the switching method is not limited to this, and various modifications are possible. . For example, whether or not to pass through the power factor correction circuit 310 may be switched by a manual switching switch. Further, in the case where the power factor correction circuit 310 is not passed, the bypass circuit 320 is used. However, a circuit that does not have the power factor improvement circuit 310 is formed separately, and in the power saving mode, the circuit is powered. You may make it go through.

B3. Modification 3:
In the above embodiment, it is determined in the process of step 230 in FIG. 4 whether or not 30 seconds have passed without the customer sensor 17 being detected by the user, but the ATM 10 shifts from the normal mode to the power saving mode. The conditions are not limited to this, and various modifications are possible. For example, the control unit 60 may immediately shift the ATM 10 to the power saving mode when the customer sensor 17 no longer detects the user. The ATM 10 in this modified example operates in the power saving mode during the waiting time of 30 seconds for shifting from the normal mode to the power saving mode in the above embodiment, so that the power consumption in the ATM 10 is further reduced and the efficiency of the ATM 10 is improved. improves. Further, the waiting time may be 30 seconds or more, or a mode in which a user or the like manually switches from the normal mode to the power saving mode may be used.

10 ... ATM
DESCRIPTION OF SYMBOLS 11 ... Card mechanism 12 ... Statement slip mechanism 13 ... Passbook mechanism 14 ... Banknote input / output mechanism 15 ... Coin input / output mechanism 16 ... Touch panel 17 ... Customer sensor 18 ... Biometric authentication mechanism 19 ... Status display lamp 20 ... Welcome lamp 21 ... Illumination part 22 ... Line connection unit 23 ... Battery 30 ... Power supply unit 40 ... Commercial power supply 50 ... Host computer 60 ... Control unit 100 ... Cash transaction processing system 230 ... Step 301 ... Bridge diode 302 ... Smoothing capacitor 304 ... Power supply circuit control unit 310 ... Power factor improvement Circuit 311 ... Choke coil 312 ... Diode 314 ... Power factor correction circuit controller 320 ... Detour circuit 321 ... Switch element C1 ... Curve C2 ... Curve T1 ... Terminal T2 ... Terminal T3 ... Terminal CR ... Output efficiency relationship NT ... Network Tm1 ... Period Tm2 ... period Pth ... predetermined value

Claims (5)

A transaction processing apparatus,
An input unit for receiving instructions from the user;
A detection unit for detecting the presence of a user within a predetermined range facing the transaction processing apparatus;
A power supply unit that supplies power supplied from a commercial power supply to a plurality of functional units including the input unit and the detection unit in the transaction processing device;
During the period in which the detection unit detects the presence of the user, the operation mode of the transaction processing apparatus is set to the normal mode, and at least a part of the period in which the detection unit does not detect the presence of the user. In the period, the power saving mode in which the power consumed in at least one functional unit of the plurality of functional units to which power is supplied in the normal mode is smaller than that in the normal mode. A control unit for setting to
The power supply unit includes a power factor correction circuit that improves the power factor of the supplied power, and passes the power supplied from the commercial power source through the power factor correction circuit in the normal mode and the commercial power in the power saving mode. And a circuit control unit that prevents power supplied from a power source from passing through the power factor correction circuit. The transaction processing apparatus according to claim 1,
The said control part is a transaction processing apparatus made into the setting which does not supply electric power with respect to the said at least 1 function part in the said power saving mode. The transaction processing device according to claim 2,
The power supply unit includes a bypass circuit that does not pass through the power factor correction circuit, and a switch element that opens and closes the bypass circuit,
The circuit processing unit is configured to connect the power factor correction circuit in the normal mode and open the bypass circuit, and not connect the power factor improvement circuit and close the bypass circuit in the power saving mode. A transaction processing apparatus according to any one of claims 1 to 3, wherein
The said control part is a transaction processing apparatus which transfers the said transaction processing apparatus from the said normal mode to the said power saving mode, after the predetermined time passes after the said detection part stops detecting a user's presence. A method of controlling a transaction processing apparatus that accepts an instruction from a user,
Detecting the presence of a user within a predetermined range facing the transaction processing apparatus;
During the period in which the presence of the user is detected in the detecting step, the operation mode of the transaction processing apparatus is set to the normal mode, and at least one of the periods in which the presence of the user is not detected in the detecting step. In the period of the part, the operation mode of the transaction processing device is consumed in at least one functional unit of the plurality of functional units including the input unit in the transaction processing device to which power is supplied in the normal mode. Setting the power to a power saving mode smaller than the normal mode;
In the normal mode, power supplied from a commercial power source is supplied to the plurality of functional units via a power factor correction circuit that improves the power factor of the supplied power, and in the power saving mode, the commercial power source is supplied. Supplying the power supplied from the power supply to the plurality of functions without passing through the power factor correction circuit.

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