JP3480555B2 - Electronic apparatus, facsimile apparatus and control method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is directed to reducing power consumption.
Electronic apparatus, facsimile apparatus, and control method therefor
It is about. [0002] 2. Description of the Related Art In a conventional facsimile machine, a ring
Check, mechanical switch operation, operation panel operation
Operation, hook operation, etc. are constantly monitored by CPU, gate array, etc.
I'm watching. In addition, the function can be controlled during standby.
Operating various devices such as CPU and gate array
Power is supplied to all devices during standby.
Was. Therefore, power consumption is large even during standby.
Was. In particular, recent equipment has become multifunctional,
With the increase in devices to control new functions,
Its power consumption is increasing. Therefore, it is currently waiting
Low power consumption with the primary purpose of reducing power consumption in
Devices with a force mode have been developed. This low power consumption
In standby mode under force mode, certain functions, such as display
Power consumption was reduced by restricting the display on the display. The transition to the low power consumption mode is, for example,
For example, the following procedure is used. When the main switch of the power supply is turned on,
Power is supplied to each control unit in the standby state. Main CPU
After performing various initial processing,
And issues a request to shut off the main power supply. When this shutdown request is received
The sub CPU at that time,
It is determined whether or not there is. As a result of the judgment, turn on the main power
If there is no cause, the sub CPU is
Give an instruction to shut off the power. As a result, the main power
Then, the mode is shifted to the low power consumption mode. General
Typically, this main power-on factor occurs for a certain period of time.
The main power supply when the
We are giving instructions to shut off. The sub CPU operates in
Often located at the interface (OPE). [0006] In the above prior art, a low
In the standby state under the power consumption mode
If you try to use a function that is
Was slow. In addition, what is limiting
Power consumption is sufficient because only some specific functions
It is hard to say that it is small. Currently, we are addressing environmental issues.
Therefore, reducing power consumption during standby is
There is even more demand. Conventional low power consumption mode
Establish standards that cannot be met just by providing
It was being done. [0007] In addition, in the standby state under the low power consumption mode,
Because the display on the display on the OPE was restricted.
On the contrary, inconvenience occurred. For example, the device has low power consumption
In the mode or the main switch is not turned on
Can not be identified by the operator just looking at the display
There was a problem. Therefore, the main switch is turned on
The operator does not notice that it is not
In some cases, reception was not possible. In the low power consumption mode, a standby state is set.
Is restored to the normal state every time there is communication.
Printing. Therefore, usage
In some cases, power consumption cannot be reduced so much
There was a problem. [0009] Further, the transition to the low power consumption mode is generally performed.
A certain amount of time has passed since the last use of the device
Waiting for the power consumption mode,
Until then, power was wasted. [0010] The present invention can be used without losing operability.
Electronic devices designed to reduce power consumption, especially in standby
And a facsimile apparatus and a control method therefor.
aimed to. The present invention further reduces power consumption.
Electronic device, facsimile device and control thereof
The aim is to provide a method. [0012] [Means for Solving the Problems]To achieve the above objective,
A plurality of functional units for performing different functions from each other and the plurality of
And a power supply unit for supplying power to the function unit.
Power save standby to limit the power consumed by several functional units
The electronic device of the present invention having a mode includes a
Stores the setting information for enabling / disabling the power saving standby mode.
Storage means; The setting information in the storage means is power
Indicates that save wait mode is enabled
When a predetermined processing request is not input from outside
Shifts to the power save standby mode and
On the other hand, the power supply by the power supply unit is restricted,
The setting information in the column indicates that the power save standby mode is disabled.
Does not shift to the power save standby mode when
Further, a predetermined processing request is issued during the power save standby mode.
When the power save standby mode occurs
Control means for performingIt is characterized by the following. [0013] [0014]Multiple functions are provided to achieve the above purpose.
Supplying power to each element that performs the plurality of functions.
Power, including power supply, that limits the power consumed by each element
The electronic device of the present invention capable of shifting to the save standby mode includes: Previous
Among the multiple functions of the electronic device, the least frequently used
A registration method that allows one function to be registered externally
Steps and The electronic device is in the power save standby mode.
The power supply unit is registered in the registration means.
Do not supply power to elements that are not used to perform the function
Control means for instructing It is characterized by having. [0015] [0016]Different functions to achieve the above purpose
And supplying power to the plurality of functional units.
And a power supply for supplying power during the standby mode.
Are supplied with different combinations of functional units.
Standby at one function level selected from function levels
The electronic device of the present invention Power consumption in standby mode
For storing information indicating multiple specification values that specify the upper limit of
A rating table, The standby power consumption of the electronic device,
Information indicating each of the plurality of function levels is stored.
Function table to be stored,Power consumption during standby of the electronic device
Power consumption to calculate the power based on the output current of the power supply unit
Calculating means;Referring to the standard value table,
The power consumption calculated by the force calculation means is satisfied by the electronic device.
To select the function level so as not to exceed the required standard value
Means. [0017] [0018] [0019] [0020] [0021] [0022] BRIEF DESCRIPTION OF THE DRAWINGS FIG.
It will be described using FIG. Embodiment 1 In the first embodiment, the device
Wait for a prescribed instruction operation while only part of the power is supplied.
Power saving standby state, and
The device operates on the LCD panel even in the power saving standby state
The main feature is that the display indicating that
It is. Facsimile machine in Embodiment 1
Operating status, standby status, power save standby status
There are three states. The operation status is determined by receiving a transmission instruction, incoming call, etc.
After attaching, processing operations for transmission, copying, etc. are actually performed.
It is in the state that it is. The standby state is a transmission instruction, an incoming call, etc.
Is waiting for these instructions, etc.
If it is turned on, it can immediately move to the operating state and execute processing
Power is supplied to the entire apparatus as described above. In contrast,
The power save standby state is the same as the standby state.
Is in a state of waiting for
Power supply to each part is particularly necessary to reduce power consumption
(For example, OPE48 described later)
You. Either this standby state or power save standby state
Is used by the operator in advance.
Has become. It should be noted that "restriction of power supply"
Does not necessarily mean that the power supply is stopped.
No. Suppress voltage or current, reduce operating frequency, etc.
It is a concept that includes. This point is described in Embodiments 2 to 6 described later.
The same applies to the case. The details will be described below. The facsimile apparatus according to the first embodiment is
As shown in FIG. 1, the power supply unit 31 and the main control unit 4
4. Operation interface unit 48 and NCU
52. The power supply unit 31 is connected to an AC power supply.
A main switch 33 having a plug 32 connected to an input terminal,
It has a sub power supply 34 and a main power supply 40. The sub power supply 34 enters a power save standby state.
That supplies power only to predetermined parts
It is. The sub power supply 34 is connected to the output of the main switch 33.
Step-down transformer 35 connected to the power terminal and series regulator
And a constant voltage unit 36 such as a
The operation input connected to the output terminal of the voltage unit 36
+ 5V to the interface 48 and the NCU 52
Supplying constant voltage. The sub power supply 34 is
Main power switch for turning on / off the in power supply 40
The switch 37 is provided. This main power switch 37
Is a relay (not shown) and a switch (not shown) for driving the relay.
Composed of a transistor as a switching element
Output terminal of the main switch 33 at the end of the make contact.
And the input terminal of the main power supply 40 are connected. This
Main power switch 37 is
By the main power ON signal output from the
Energized and de-energized by main power off signal
Be in a state. The main power supply 40 is connected to the facsimile
It supplies power to the whole, and the operating state described above
The power supply to each part in the standby state
Power supply 40. This main power supply 40
Specifically, the output terminal of the main power switch 37
The connected switching controller 38 and step-down transformer 39
And a constant voltage section 41 such as a series regulator.
It is connected to the + 5V output terminal of the constant voltage unit 41.
Operation interface unit 48 and the like connected to each other
Is supplied with a constant voltage of + 5V, and the constant voltage unit 41 supplies + 24V.
To the main control unit 44 connected to the output terminals of
+ 24V constant voltage is supplied. An operation interface unit (hereinafter referred to as an operation interface unit)
48 is an instruction operation from the operator.
And inform the operator of its operating status.
It is to know. This OPE48 is the main system
It operates in cooperation with the control unit 44, the main power switch 37, and the like.
By doing so, the above-mentioned states (operating state, standby state,
In the power saving standby state).
For example, this OPE 48 is in a power save standby state.
Power is supplied from the sub power supply 34,
Power-on factors (for example, operation of the operation switch 54,
Is monitored for occurrences of In addition, power
In the standby mode, the device is operating on the LCD 50.
Display or power save standby
Is displayed to show that This OPE
48 is, specifically, a central processing unit 49 (hereinafter, “sub
CPU49 ”), a liquid crystal display (hereinafter“ LCD ”).
50), a memory 51, and an operation switch 54.
Are connected to each other by bus lines
Have been. The sub CPU 49, together with the memory 51,
And an incoming signal of the NCU 52.
RI, a hookup detection signal HU of the external telephone 55,
Receiving the original detection signal PC from the hopper sensor, the main power supply
An ON signal is output to the main power switch 37.
ing. The main control section 44 controls the entire apparatus.
It oversees. As mentioned earlier, this main system
The control unit 44 includes an OPE 48, a main power switch 37, and the like.
By operating in conjunction with each other, each of the states (operation
State, standby state, power save standby state)
Is managing. The main control unit 44
Are a main CPU 46, a memory 47, an input / output device 45
(Hereinafter referred to as “I / O45”).
These are connected to each other by bus lines.
You. The memory 47 stores a control program.
ROM and I / O 45 set at startup
It consists of a RAM for writing various setting values such as port information.
Have been. When the operator operates the operation switch 54,
And various setting information, such as standby state and
Which of the power saving standby states is used depends on this R
It is held in AM. Also, in power save standby state
Message displayed on the LCD 50
It is stored in the ROM in advance. Also, this power save
The target for supplying power in the standby state is also the memory 47.
Alternatively, it is stored in the memory 51. The main CPU 46, via the I / O 45,
NCU 52 incoming signal RI, handset hookup detection
The signal HU and the original detection signal PC of the hopper sensor are received.
You. In addition, the main CPU 46 and the memory 47
Power off request means is configured, and after data processing is completed,
Within a predetermined time, the incoming signal RI of the NCU 52 and the external power
Hook-up detection signal HU of talker 55, hopper of drive unit
If the sensor does not receive the original detection signal PC, the main power
Off request command to main power switching means of OPE48
Output. The main power switching means outputs a main power off request.
When a command is received, the main power OFF signal is
The signal is output to the power switch 37. The main CPU 46 is connected via an I / O 45
Connected to a drive unit (not shown)
When the switch 33 is turned on, a document hopper (not shown)
That a document has been set in the hopper sensor (not shown)
The operation switch 54 of the OPE 48 is detected by the detection signal PC.
Read the destination based on the operation of and press the start key.
And lowers the original reading unit (not shown) to read the original.
And send the read content through NCU 52
Or based on the incoming signal RI received by the NCU 52.
Automatically start reception and drive the printing unit (not shown).
Output. The main control unit 44 stores the image data in a memo
Control processing to be stored in the memory 47, compression and decompression of image data.
It also controls printers and the like in addition to the extension and editing processes.
Because it is necessary to process large volumes of image data at high speed,
CPU 46 has high clock frequency and simultaneous processing
Uses the largest possible number of bits. On the other hand, O
PE48 requires faster processing than main controller 44
The sub-CPU 49 has a low clock frequency.
The number of bits that can be processed simultaneously may be small. Toes
The power consumption of the sub CPU 49 is
Less than compared. Next, the operation will be described with reference to FIG. First, the main switch 33 is turned on.
(Step 100) and the sub power supply 3 of the power supply unit 31
4 rises (step 102). The power supply from the sub power source 34
The PU 49 performs initial processing (Step 104).
Then, the main power supply 40 is turned on (main power supply ON signal).
To the main power switch 37 of the power supply unit 31
(Step 106). In response to this input command,
In the power supply unit 31, the main power supply 40 is turned on (switch).
Step 108). When the main power supply 40 is turned on,
The CPU 46 performs initial processing (step 11).
0), then use the power save standby state
Is set (step 1).
12). Set to use power save standby state
Display data to be displayed on the LCD 50 if the
(Here, it indicates that the machine is in the power save standby state.
(A character string, etc.) to the sub CPU 49. By the way, the main power supply 40 is turned on.
And the sub CPU 49 stores the display data on the LCD 50 as a main.
Waiting to be sent from the CPU 46 (step
114). When the display data is received,
Display on the LCD 50 as shown in FIG.
6). After that, the sub CPU 49
It is determined whether or not an input factor of 0 has occurred (step
118, 120, 122, 124). As an input factor
Indicates that there is an original (step 118) and there is an incoming call
(Step 120), telephone hookup (step
122), a predetermined operation of the operation switch 54 (Step 1)
24) is set. Steps 118, 120, 122, 124
As a result of the judgment in, if there is no input factor
Turns off the main power supply 40 (step 12).
6) Then, return to step 118 and repeat the same processing.
return. On the other hand, steps 118, 120, 122,
As a result of the determination in 124, any one of the input factors
If the error has occurred, the process proceeds to step 128. In step 128, the sub CPU 49
Is the main CPU 4 of the main control unit 44
6 (step 128). Also, the main power switch
A power-on command is sent to the switch 37 to turn on the main power supply 40.
(Step 130). Then, the main CPU 46 operates as a main power supply.
Each part is operated by the electric power supplied from 40. You
That is, the state of the device at that time is displayed on the LCD 50.
(Step 132). Furthermore, at that time
Performs a predetermined processing operation to deal with the input
Step 134). Then, after the processing operation is completed
(Step 136) returns to Step 112 again,
Is repeated. In step 112, the power cell
If the standby mode has not been set,
Proceed to step 132. As described above, according to the first embodiment.
Display an indication that this device is
The operation is performed on the LCD 50 even in the save standby state. Therefore,
Increased power consumption in standby mode
Operation to confirm that the device is
You can let them know. Therefore, this power saver
Standby state, forgetting to insert plug 32, main switch
33 can easily be distinguished from the OFF state. That is,
Prevent device settings mistakes and ensure fax reception while absent
It can be real. Further, in the first embodiment, the power
-LCD display shows save standby status
(LCD) requires less power to display
It is particularly suitable for the purpose of reducing power consumption. For example, LC
The current consumption of D, including the controller and driver,
About 1 mA, about 0.01 W in terms of primary power
Becomes Note that using LEDs for display will increase power consumption.
Is the original purpose of reducing power consumption?
Are not preferred. For example, current consumption when LED is turned on
Is about 20 mA, it is equivalent to 0.2 W in primary power conversion.
Hit. In the first embodiment, the facsimile apparatus
The application example was explained, but the scope of the present invention is limited to this.
It is not done. Various devices with standby, eg
For example, OA equipment such as copiers and printers, televisions, air
It is widely applicable to home appliances such as concrete. Embodiment 2 Facsimile of Embodiment 2
Millimeter measured the current value actually flowing through the device
Calculate power consumption based on the results, and calculate
According to the result of comparing the result with the standard value,
More flexible adjustment of power consumption by selecting and setting bells
The main feature is that it can be done. Facsimile apparatus according to Embodiment 2
Operating status, standby status, power save standby status
There is a state. For the operating and standby states,
Same as in the first embodiment. Power save standby state is standby
In the same state as in the state, waiting for transmission instructions, incoming calls, etc.
Power supply to each part to reduce power consumption
Excludes particularly necessary ones (for example, OPE5 described later).
Are restricted. Further, in the second embodiment, this
Power saving standby mode.
Prepare a level and use it as needed
It has become. Hereafter, the power save standby
The bell will be called the "functional level". Detailed explanation below
I will tell. Facsimile apparatus in Embodiment 2
Controls the power supply in the device as shown in FIG.
Power supply unit 1, current sensor 2, power supply
Source control unit 3, analog / digital conversion
Unit 4, operation interface unit 5, CPU
6, a ROM 7, a RAM 8, and the like. Ma
In addition, individual processing functions such as printing and image reading
Processing unit 9, reading unit 10, printing
Control unit 11, printing unit 12, communication control unit 13, modem 1
4, a line control unit 15 and the like are provided. The power supply unit (PWU) 1 includes a commercial power supply and a device power supply.
Interface with the source. This PWU1 is commercial
After dividing the voltage supplied from the power supply,
To supply. The current sensor 2 is inserted on the primary side of the power supply unit 1.
And measures the current flowing through the device. Power supply control unit (PCU) 3
Controls power supply to each device. This
The power supply control unit 3 has a function level described later.
According to the file definition table 73, the function level setting information 82, and the like.
The power supply to each device.
It can be set independently. An analog / digital converter (hereinafter referred to as “A / D
4) converts an analog value into a digital value
Specifically, the output value of the current sensor 2
(Analog value indicating current value) is converted to digital value.
You. Operation interface (OP)
E) 5 is the registration required to use the facsimile machine
Accepts input operations by the operator, such as data
It includes a numeric keypad and the like. The CPU 6 has a function of controlling the entire apparatus.
I have. The CPU 6 includes an arithmetic unit and a direct memory
Access control circuit, interrupt control circuit, etc.
ing. The CPU 6 includes a program included in the ROM 7 and the like.
Various functions are realized by executing programs.
The functions realized by the CPU 6 and the like are shown in FIG.
As shown in FIG.
Power consumption output unit 62 for calculating power, calculated as a standard value
A power consumption comparing unit 64 for comparing the power consumption with the power consumption;
Power supply destination control that changes the setting of the function level according to the result
There is a part 66. More on these features later
It will be described in the operation description. "Function level"
The meaning is described at the beginning of the description of the second embodiment.
It is a cage. The ROM 7 stores various tables, initial data, and the like.
Is stored. In the second embodiment
Is information stored in the ROM 7, for example,
As shown in FIG.
-Power consumption conversion table 72, function level definition table
There are 73. The country-specific power consumption standard table 71 includes
The standard values of power consumption are listed for each country. The current-power consumption conversion table 72 includes
Detection result (current value) of the flow sensor 2 and power saving standby
Correspondence with the power consumption of this facsimile machine in the state
Is described. This current-power consumption conversion table 7
The content of 2 is set based on the actual measurement result performed in advance
Have been. The function level definition table 73 contains the power supply
Devices that are allowed to restrict
It is defined for each level. For example, in the example of FIG.
Are as function level 1 to function level 3
Has been defined. In the function level 1, the image processing unit 9
In addition, power supply to the reading unit 10 is restricted.
Conversely, power is supplied to the OPE 5 and the line controller 15.
Power save, this function level 1 power save
In standby state, incoming signal (RI), hookup signal
(FU), an instruction (OPE) from the operation unit can be detected.
You. At the function level 2, the image processing unit 9, the reading unit 10,
Restriction of power supply to printing control unit 11 and printing unit 12 allowed
Have been. Conversely, power is supplied to the line control unit 15.
Power saving wait for this function level 2
In the machine state, the incoming signal (RI) and the hookup signal (F)
U) can be detected. In function level 3, the image processing unit
9, print control unit 11, communication control unit 13, and line control unit
15 power supply restrictions are allowed. Conversely,
Power is supplied to the reading unit 10 and the OPE 5
Therefore, in this function level 3 power save standby state,
Detection signal (PC) of the upper sensor, an instruction (O)
PE) can be detected. The contents of each function level are based on the power consumption.
Consider the effect on size, operability, etc.
The lower the bell, the lower the power consumption.
I have. For example, among the function levels 1 to 3, the function level
1 has the highest power consumption, and function level 3 has the highest power consumption.
The power is getting smaller. Therefore, as described later,
-When deciding the level of the save standby state,
Level (functional level 1 → functional level)
2 → function level 3 → ...). Also power
The transition from the save standby state to the operation state is performed by an incoming signal (R
I), hookup signal (FU), operation instruction of OPE5
(OPE), the detection signal (PC) of the hopper sensor
It will be triggered by detection of one of them
It has become. Therefore, any power level
In standby mode, at least one of these four
At least one of them can be detected. In addition, Hoppersen
(Not shown in the figure)
It is a sensor that detects that the operation has been performed. The RAM 8 is for storing registration data and the like.
belongs to. As data stored in the RAM 8
Are, for example, country data 81, function level setting information 82
There is. The country data 81 indicates that this facsimile machine
This data specifies the country actually used, and
Is set by the operator operating the OPE5. The function level setting information 82 is set at that time.
This indicates the function level that has been set. This feature level
Is initially set by the operator.
To enter the power save standby state
In this case, this setting should be made appropriately based on the relationship between
Is changed. The image processing section 9 is provided for the image processing of the facsimile machine.
Image data and perform image processing.
You. The reading section 10 is for reading an original.
It is. The printing control unit 11 performs printing by the printing unit 12.
Is controlled. The printing unit 12 is a mechanism for printing on recording paper.
It is. The communication control unit 13 has a function of controlling communication.
Have. In the second embodiment, the ITU-T
T. Communication according to the communication procedure defined by 30 etc.
Is controlled. The modem 14 converts communication data into analog data.
Keying and demodulation. The line control unit 15 controls the connection with the line switching network.
It has a function to control. Next, the operation will be described. An outline of the operation of each processing function will be described with reference to FIGS.
Will be explained. The CPU 6 controls each control unit and its peripheral devices.
Is controlled. Under this control, copy
-Operation, transmission operation and reception operation are performed as follows.
Will be 1. Copy operation Data read by the reading unit 10 is processed by the image processing unit 9
Is sent to the print control unit 11 and printed by the printing unit 12.
You. 2. Transmission operation Data read in the same way as at the time of copying is processed by the image processing unit 9.
Is managed. Thereafter, the communication control unit 13, the modem 14, and the
The data is sent to the line through the line control unit 15
You. 3. Receiving operation The data sent through the line is sent to the line control unit 15,
It is received by the modem 14 and the communication control unit 13. Soshi
The received data is controlled by the print control unit 11.
Below, it is printed by the printing unit 12. Next, the operation for shifting to the power save standby state
Will be described with reference to FIG. This shift is based on the standard while calculating the power consumption.
Performed by gradually lowering the function level until the value is satisfied
It is. Before entering the power save standby state,
Therefore, the operator operates the OPE 5 to
Desired function level and this
Specify the country where the fax machine is used (step
200). The specified data is country-specific data 81,
It is registered in the RAM 8 as the function level setting information 82. When the apparatus shifts to the power save standby state,
If the condition for the condition is satisfied, the standard value output unit 60
Level setting information 82 and country-specific data 81
Table 71 for each country based on the setting contents of
To read the standard value of power consumption in that country.
It is issued (step 202). At this stage, set
Function levels are set by the operator.
Level. On the other hand, at this time, the A / D converter 4
The current value measured by the sensor 2 is converted into a digital value, and the
The result is output to the power consumption output unit 62 (step 20).
4). The power consumption output unit 62 is connected to the A / D conversion unit 4
Current based on the data (current value) input from the
By referring to the power consumption conversion table 72, the
The power consumption is calculated (step 206). Subsequently, the power consumption comparing section 64 executes the step
The power consumption calculated in 206 and the standard value output unit 6
0 is compared with the read standard value, and the comparison result is
Output to the supply destination control unit 66. The power supply destination control unit 66
Perform different processing according to the content of the comparison result (step
208). That is, the comparison result shows that the power consumption
If it does indicate a step
Proceed to 210. In step 210, the power supply destination control
The unit 66 lowers the function level by one step. For example, until then
Function level 2 is set in the function level setting information 82
In this case, the content of the function level setting information 82 is updated and updated.
In addition, function level 3 is set. The PCU 3 refers to the function level setting information 82.
The function level set at that time.
Admit. Then, the function level definition table 73 is referred to.
By doing so, at the function level set at that time
Supply power to devices, etc., for which
Limit pay. Thereafter, the flow returns to step 204 again, and
Is repeated. That is, the calculated power consumption
Until is less than or equal to the standard value, the power supply destination control unit 66 etc.
Lower the function level. The result of the comparison in step 208 is
If the signal indicates that the force is below the specified value
In that case, only the devices needed at that time were activated
Then (Step 212), wait for power saving as it is
State. In this power save standby state,
Power supply is permitted at the function level when
Power is supplied only to devices and the like. As described above, according to the second embodiment.
Measure the current value that is actually flowing, and
Power consumption is calculated based on the
The result is accurate. Therefore, the actual power consumption and the standard value
To make the difference sufficiently large, that is,
Power supply to each device to clear
No need to limit above. In other words, to clear the standard
The devices that limit power supply to minimize
Thus, both operability and low power consumption can be achieved. In addition,
Since power consumption can be changed more precisely,
Can respond flexibly. In the second embodiment, the function level is set.
Of the function level set at that time as the
PCU3 directly sets the function level.
By referring to the definition table 73, each device
Have obtained information on whether there is a power supply restriction on
Was. However, as the function level setting information 82, the
Not only the function level but also the set function level
The power supply limit for each device
May be determined. This replaces PCU3
CPU 6 can access function level definition table 73
This is easily possible. Also in this case,
The operator simply registers the desired function level.
Good. That is, the CPU 6 sets the function level definition table 73
And refer to the contents of the function level set at that time.
The information is read out and added to the function level setting information 82.
When such a configuration is adopted, the PCU 3 has a functional level.
The required information can be obtained simply by referring to the bell setting information 82.
Can be. PCU3 is stored in the function level definition table 73.
You do not need to be able to access. Embodiment 3 Functions such as reception and transmission are required.
Not all are used. By user
May have functions that are not actually used. example
For example, some facsimile machines are used exclusively for reception.
You. The facsimile apparatus according to the third embodiment
Set frequently used functions as “Use mode”
By doing so, in the power save standby state,
Data not used by the function set as the usage mode
The main feature is to limit the power supply to the vice.
The power save standby state means that a transmission instruction, an incoming call, etc.
The power supply to each part has been determined separately.
It is a restricted state except for. The details are described below.
I do. Facsimile apparatus in Embodiment 3
Controls the power supply in the device as shown in FIG.
Power supply unit 1 and power supply control
Unit 3, operation interface 5,
It comprises a CPU 6, a ROM 7, a RAM 8, and the like.
You. In addition, individual processes such as printing and image reading are performed.
The image processing unit 9 and the reading unit 1
0, print control unit 11, print unit 12, communication control unit 13, mode
Dem 14, line control unit 15, PC-I / F16, etc.
ing. In the third embodiment, the CPU 6, the ROM 7,
Information stored in the RAM 8, the CPU 6, and further,
The power realized by the power control unit 3
The power supply control function is different from that of the second embodiment. this
Hereinafter, description will be made focusing on this difference. Power supply control unit (PCU) 3
Controls power supply to each device. This
The power supply control unit 3 of FIG.
Indicate whether or not power is supplied to each device as
Each can be set independently. The CPU 6 has a function of controlling the entire apparatus.
I have. The CPU 6 includes an arithmetic unit and a direct memory
Access control circuit, interrupt control circuit, etc.
ing. The CPU 6 includes a program included in the ROM 7 and the like.
Various functions are realized by executing programs. The ROM 7 stores various tables, initial data, and the like.
Is stored. In the third embodiment
As information stored in the ROM 7, for example, FIG.
There is a usage mode definition table 74 shown. The use mode definition table 74 contains the power supply
Devices that are permitted to restrict
It is defined for each mode. For example, in this embodiment
In FIG. 3, as shown in FIG.
Mode, reception mode, PC transmission mode, PC reception mode, etc.
Is set. In the transmission mode, the printing unit 12, the printing
Defined as not using control unit 11, PC-I / F16
Have been. Therefore, in transmission mode, the power to these
Supply can be limited. Conversely, other than these
For devices of the kind, it is permissible to limit the power supply
Not. Similarly, in the reception mode, the reading unit 10, P
It is defined that the C-I / F 16 is not used. P
In the C transmission mode, the printing unit 12, the printing control unit 11, the reading
Section 10 and image processing section 9 are not used.
You. The RAM 8 is for storing registration data and the like.
belongs to. As data stored in the RAM 8
Includes, for example, use mode setting information 83. This use
The mode setting information 83 indicates the frequency of use by the operator.
Advanced processing functions are registered as usage modes.
is there. The PC-I / F 16 is a personal computer.
It controls the interface with the data. Power supply unit (PWU) 1, operation in
Interface unit (OPE) 5, image processing unit 9, reading unit 1
0, print control unit 11, print unit 12, modem 14, line control
The control unit 15 is the same as in the first embodiment. Next, the operation will be described with reference to FIG. The operator operates the OPE 5 to
Set frequently used processing functions as usage modes
(Step 300). These settings are stored in RAM7.
It is registered as the use mode setting information 83. C that detects that the use mode has been specified
The PU 6 checks the contents of the use mode setting information 83.
And the processing function set as the use mode at that time
Check. Then, the usage mode definition table 74 is
By referencing, the specified usage mode
To identify devices that will not be used. And to these
Instruct PCU3 not to supply power (step
302). The PCU 3 receiving the instruction from the CPU 6
Controls power supply to devices that are instructed to restrict power supply.
By limiting the devices required for that mode of use.
Only the power is supplied (steps 304 and 306). Less than
After the above processing, a power save standby state is set. Next, the individual operation in each use mode will be described.
8 will be described. Here, the PC transmission operation and the PC reception operation are described.
I will talk about it. Other operations (copy operation, send operation
Operation and receiving operation) are the same as those in the second embodiment.
Therefore, the description is omitted. 1. PC transmission operation From PC via PC-I / F16
The transmission data is sent, and the communication control unit 13 and the modem 1
4. Data is transmitted to the transmission destination through the line control unit 15.
It is. 2. PC reception operation Through the line control unit 15, the modem 14, and the communication control unit 13.
The received data is sent to the PC-I / F 16 and the personal
Data is stored in the computer. As described above, in the third embodiment,
In the power save standby state,
Power only devices with commonly used functions according to the instructions
To devices that are actually rarely used
By limiting the power supply of the
Power consumption can be reduced while keeping the time short. This
The effect is that facsimile machines have become more multifunctional.
As a result, while the power consumption of the entire device increases,
Especially as the number of infrequently used devices increases
It is valid. Embodiment 4 In the fourth embodiment, the reception data
Instead of printing immediately after receiving the data,
Printing all at once,
Reduced power consumption by reducing the number of startups
It is the main feature. The facsimile apparatus of the fourth embodiment is
Operating modes: normal mode and low power consumption mode
And The normal mode is the same as in the first embodiment.
Transition between the operating state and the power save standby state as appropriate
Operating mode. In the low power consumption mode, the power save standby state is set.
The power supply to each part is limited for each part as in the state
Wait for transmission instructions, etc., and write down the received data.
It is designed to hold it. Also, the remaining memory capacity
If is not enough, the data held in memory
Are printed at once. In Embodiment 4
The timing that is determined based on time.
To switch between normal mode and low power consumption mode.
You. The details will be described below. Facsimile apparatus in Embodiment 4
Power supply in the device as shown in FIG.
Power supply unit 1 and power supply control
Unit unit 3, operation interface unit
5, a CPU 6, a ROM 7, a RAM 8, etc.
ing. In addition, individual printing, image reading, etc.
The image processing unit 9 and the reading unit as mechanisms for the processing functions of
10, print control unit 11, print unit 12, communication control unit 13,
Equipped with a modem 14, a line controller 15, an RTC 17, etc.
I have. In the fourth embodiment, the CPU 6, the ROM 7,
The information stored in the RAM 8, the CPU 6, and the power
Is realized by the source control unit 3 and the like.
The power supply control function differs from the second and third embodiments.
You. From now on, I will focus on this difference.
I do. Power supply control unit (PCU) 3
Controls power supply to each device. This
The power supply control unit 3 of FIG.
Indicate whether or not power is supplied to each device as
Each can be set independently. The CPU 6 has a function of controlling the entire apparatus.
I have. The CPU 6 includes an arithmetic unit and a direct memory
Access control circuit, interrupt control circuit, etc.
ing. The CPU 6 includes a program included in the ROM 7 and the like.
Various functions are realized by executing programs.
As described at the beginning of the description of the fourth embodiment, this CP
U6 has a normal mode and a low power consumption as operation modes.
Mode. In this low power consumption mode
In the power save standby state, the mode definition table described later
Power supply to each device according to the contents of
It is being restricted. Furthermore, immediately after receiving
Does not perform printing, but temporarily
Print out of standby mode
Has become. In normal mode, on the other hand, all data
Power to the device, and
Printing is performed immediately. In addition, low power consumption mode
The details of the mode will be described later in the operation description.
And The ROM 7 stores various tables, initial data, etc.
Is stored. In the third embodiment
The information stored in the ROM 7 is, for example,
As shown in FIG. 12, there is a mode definition table 75.
The mode definition table 75 indicates that the low power consumption mode
Devices that are permitted to restrict power supply
This is defined (FIG. 12). Conversely, write here
Restrict power supply for devices not listed
You are not allowed to do so. The RAM 8 is for storing registration data and the like.
belongs to. As data stored in the RAM 8
For example, whether the low power consumption mode is used,
There are a start time and an end time of the power consumption mode. They are
It is set by the operator himself. Real time clock section (RTC) 17
Has a clock function and always outputs a signal indicating the current time.
Output. Power supply unit (PWU) 1, operation in
Interface unit (OPE) 5, image processing unit 9, reading unit 1
0, print control unit 11, print unit 12, modem 14, line control
The control unit 15 is the same as in the second embodiment. Next, the facsimile apparatus according to the fourth embodiment will be described.
The operation will be described. First, setting and shifting to the low power consumption mode
The operation will be described with reference to FIG. The operator operates the OPE5
To set the low power consumption mode ON and start and end the mode.
The end time is input in advance. This input
The contents are stored in the RAM 8 (step 400). The CPU 6 refers to the mode definition table 75.
Control the power supply in the low power consumption mode.
A device that can be limited is confirmed (step 402). Continued
And the mode start time stored in the RAM 8 and R
Compared with the time indicated by TC17, low consumption
Determine whether it is the start time of the power mode
(Step 404). As a result of the judgment, it is still the start time
If not, it operates in normal mode
After setting (step 406),
Return to step 404. As a result of the determination in step 404, the low
If the start time of the power saving mode has been reached,
Proceed to step 408. In step 408, the CPU 6 sets R
Unused area of AM8 remains more than the predetermined reference capacity
Is determined. As a result of the judgment, the unused area is
If not, operate in normal mode.
After setting (Step 410),
Return to 08. As a result of the determination in step 408, R
If sufficient unused area remains in AM8, CP
U6 issues an instruction to PCU3 to enable low power consumption mode.
(Step 412), and the mode definition table 75
Limit power supply to devices as defined in
(Step 414). In this low power consumption mode
Is not shown in this figure, but the CPU 6 waits for reception or the like.
Is in the state of receiving
The received data is stored in the RAM 8. In this low power consumption mode, the CPU 6
Indicates that an unused area sufficient for storing received data is stored in the RAM 8
It is determined whether or not there is any remaining (step 416). This
Is assumed that the unused area of the RAM 8 will receive
Is determined based on whether or not the remaining data amount exceeds
You. As a result of this determination, the unused area of the RAM 8 becomes the reference capacity.
Is less than the limit of power supply to the printing unit 12 and the like.
Is temporarily released (step 418), and then the RAM
8 Prints the received data stored in 8 at once
(Steps 420 and 422). After that, step
Return to 414, again restricting the power supply to the printing unit 12 etc.
I do. In step 416, an unused area is used as a reference.
If more than the remaining capacity,
(Step 42).
8). As a result of this determination, at the end of the low power consumption mode
If not, return to step 416.
The same processing is repeated. As a result of the determination in step 428,
If the time has come, the mode shifts to the normal mode. The receiving operation in the normal mode is as follows.
It is done as follows. That is, sent through the line
The received data is transmitted to the line control unit 15, the modem 14, the communication control
It is received by the unit 13. And the received data
Is controlled by the printing unit 12 under the control of the printing control unit 11.
Printed. As described above, according to the fourth embodiment.
Time that you do not need to print the received data immediately
Obi, for example, unattended hours such as nights and holidays
In the band, store the received data in the memory, and
Since printing is stopped, power consumption can be reduced. That is,
In order to perform printing, it is necessary to prepare for the printing, for example, to fix
A lot of electricity is needed to heat the heater. Conventional
The device performed printing every time it was received.
Even if you are in low power mode,
In some cases, power consumption tends to increase. For example, 1
If there is communication every hour, it must be printed every time
No. On the other hand, the facsimile of the fourth embodiment
The device prints received data for multiple
The number of preheats can be reduced as much as possible
It is not necessary to heat the fixing heater many times every time
No. Therefore, low power consumption can be achieved. In general,
The user does not need to print at night and on holidays,
Power consumption mode is often desired. Therefore, at night or on holidays
This is particularly effective when there are no people such as days. A low power consumption mode for performing such an operation is described.
The start and end times of the code will depend on your own usage.
Time range for the low power consumption mode.
It does not match the actual usage situation and the usability decreases
There is no such thing. Low power consumption described in the fourth embodiment
The mode is premised on being unmanned. Another
Separate low power consumption mode for manned use
Needless to say, it does not matter. In the fourth embodiment, an unmanned state is assumed.
Low power consumption mode, determined based on time
Start and end this low power consumption mode at the timing
Was. However, start and end of this low power mode
Timing should be based on factors other than time
It may be. For example, open based on ambient light conditions
The start and end timings may be determined. Like this light
Start and end the low power consumption mode based on the state of
The apparatus is shown in FIGS. 14 and 15 as the fifth embodiment. Embodiment 5 FIG. Facsimile of the fifth embodiment
The millimeter device operates in a low power consumption mode,
Start and end timing should be determined based on brightness.
And the main features. Specifically, the area around the device is dark.
If it becomes old, it is highly likely that you will be unattended.
Transition to low power consumption mode assuming unattended state described in
I do. Conversely, if the area around the device is bright,
It returns to the normal mode because there is a high possibility. Other than this
Points, for example, the contents of the low power consumption mode, etc.
The same as in mode 4. This will be described in detail below. In the facsimile apparatus of the fifth embodiment,
As shown in FIG. 14, RTC 17 according to the fourth embodiment
Instead of the amount of light being illuminated (here visible light)
When the sensor reaches a certain value, the optical sensor 18 that outputs an ON signal is
Have. Except for this point, Embodiment 4 (FIG. 11, FIG.
12 and 13). [0138] Regarding the operation contents, the low power consumption mode
The start and end timings are not time, but are
Basically, except for decisions based on
This is the same as Embodiment 4 (FIGS. 11, 12, and 13). Regarding the start of the low power consumption mode,
Processing of steps 404 to 406 in the fourth embodiment
Processing of steps 450 to 454 in place of
Running. First, the CPU 6 operates the optical sensor 18.
Is started (step 450), and then the optical sensor 18
Check the ambient brightness based on the output signal of
452). As a result of this check, if the surroundings are bright,
In other words, people are active around this facsimile machine.
If there is a high possibility that
(Step 454). While the surroundings are bright,
Thereafter, the same processing is repeated. In step 452, the surroundings become dark.
If the facsimile machine is
When there is a high possibility that the surrounding area is unattended
Goes to step 408. Regarding the termination of the low power consumption mode,
Instead of the process of step 428 in the fourth embodiment,
The process of step 460 is executed. The CPU 6
Check the ambient brightness based on the output signal of the sensor 18
(Step 460). If the result of this check is dark,
Returning to step 416, the low power consumption mode is continued. one
If it is brighter, exit low power mode.
To go to the normal mode. In the fifth embodiment described above, the actual
Power consumption can be reduced as in the fourth embodiment. Further
The room brightness varies mainly depending on the lighting conditions.
Indicates the presence of people around the device more accurately.
To start and end the low power consumption mode.
It can be performed more flexibly and accurately. The light to be detected by the optical sensor is a visible light
It is not limited to. To detect infrared
May be. As is well known, the human body emits infrared rays
Therefore, by performing appropriate processing on the detection results,
It is also possible to directly detect the presence or absence of a person in the surroundings. Embodiment 6 FIG. Facsimile of Embodiment 6
The millimeter device has the operating status and power as the status of the device.
-There is a save standby state, and the specified processing operation has been completed.
At this point, it immediately transitions from the operating state to the power save standby state.
The main feature is that it is performed. This embodiment
6 is the timing of the transition to the power save standby state
Power saving standby mode
Power supply and restrictions on power supply
Anything is fine. In the sixth embodiment
Power saving standby state itself
And the like. A facsimile apparatus according to the sixth embodiment is
No PC-I / F16 as shown in 16
Is different from the third embodiment. Also, the CPU 6, R
OM7, information stored in RAM8, CPU6,
Are realized by the power control unit 3.
Power supply control function is different from that of the third embodiment.
I have. From now on, we will focus on this difference
To Next, the operation for shifting to the power save standby state
Will be described with reference to FIGS. 17 and 18. First, the power saving after the transmission operation is completed.
The transition to the standby state will be described with reference to FIG. After transmitting a series of data, the CPU 6
Wait for the line controller 15 to disconnect the line (step 50).
2). After confirming that the line has been disconnected, the CPU 6
Also ends the transmission operation (step 504). After this, speed
Soon, the CPU 6 is used in the power save standby state.
PCU to supply power only to devices used
3 is issued (step 506). Accordingly, P
CU3 enters the power save standby state that is specified separately
The power supply to devices other than the necessary devices. This
Thereafter, the CPU 6 and the like enter a power save standby state. Next, after the COPY and reception operations are completed,
The transition to the power save standby state is explained using FIG.
I will tell. Reception of a series of data or COPY operation
CPU 6 prints after reading of the image in
The printing operation by the unit 12 and the printing control unit 11
Wait for the printing sequence to end (step 52)
2). After confirming that these operations have been completed, the CPU 6 is also marked.
The printing operation ends (step 524). After this, promptly
Then, the CPU 6 uses the PCU 3 in a power save standby state.
Command to supply power only to devices that
Step 526). In response, PCU3 has been determined separately.
Device required in the power save standby state
Restrict power supply to other sources. After this, CPU6 etc.
Enters a power save standby state. As described above, in the sixth embodiment,
Is not completed when individual operations such as transmission and printing are completed.
By quickly shifting to the power save standby state,
The time during which power is supplied can be reduced. Power
-There is no extra time before entering the save standby state
Power consumption can be further reduced. In the example described above, the line was disconnected.
It is considered that the transmission operation of the device itself has been completed.
I was Also, when the printing operation is completed,
It considered that the receiving and copying operations of itself were completed. I
However, the details of the operation to be detected are limited to this.
It is not specified. Used in each of the embodiments described above.
In the table (for example, the function level definition table 73),
Only devices that limit power supply are described. This
This is indirect for devices not listed.
Shows that power supply is not restricted. All
Indicates whether or not the device has power supply restrictions
This is substantially the same as [0154] As described above, according to the present invention, the operation
Power consumption can be reduced without impairing performance.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a main configuration of a facsimile apparatus according to Embodiment 1 of the present invention. FIG. 2 is a flowchart showing processing for shifting to a power save standby state according to the first embodiment; FIG. 3 is a diagram showing an example of a display indicating that the apparatus is in a power save standby state. FIG. 4 is a block diagram illustrating a device configuration according to a second embodiment of the present invention. FIG. 5 is a functional configuration diagram of a main part according to a second embodiment. FIG. 6 is a diagram illustrating an example of information stored in a ROM. FIG. 7 is a flowchart showing an operation of shifting to a power save standby state according to the second embodiment. FIG. 8 is a block diagram illustrating a device configuration according to a third embodiment of the present invention. FIG. 9 is a diagram showing an example of information stored in a ROM. FIG. 10 is a flowchart showing an operation in the third embodiment. FIG. 11 is a block diagram illustrating a device configuration according to a fourth embodiment of the present invention. FIG. 12 is a diagram illustrating an example of information stored in a ROM. FIG. 13 is a flowchart showing an operation of starting and ending the low power consumption mode in the fourth embodiment. FIG. 14 is a block diagram illustrating a device configuration according to a fifth embodiment of the present invention. FIG. 15 is a flowchart showing an operation of starting and ending a low power consumption mode in the fifth embodiment. FIG. 16 is a block diagram illustrating a device configuration according to a sixth embodiment of the present invention. FIG. 17 is a flowchart showing a transition operation to a power save standby state according to the sixth embodiment. FIG. 18 is a flowchart showing a transition operation to a power save standby state according to the sixth embodiment. [Description of Signs] 1 Power supply unit (PWU), 2 Current sensor, 3 Power supply control unit (PCU), 4 Analog /
Digital converter, 5 Operation interface (OPE), 6 CPU, 7 ROM, 8
RAM, 9 image processing unit, 10 reading unit, 11 printing control unit, 12 printing unit, 13 communication control unit, 14
Modem, 15 line control unit, 16 PC-I /
F, 17 Real-time clock unit (RTC), 18
Optical sensor, 31 Power supply unit (PWU), 32
Plug, 33 main switch, 34 sub power supply, 37 main power switch, 40 main power, 46 main CPU, 48 operation interface (OPE), 49 sub CPU, 5
0 liquid crystal display (LCD), 54 operation switches,
71 Power consumption standard table by country, 72 Current-power consumption conversion table, 73 Function level definition table,
74 Use mode definition table, 75 Mode definition table, 81 Country data, 82 Function level setting information, 83 Use mode setting information.

Continuation of the front page (56) References JP-A-10-97356 (JP, A) JP-A-8-147075 (JP, A) JP-A-62-1821 (JP, A) JP-A-7-271483 (JP) JP-A-10-171564 (JP, A) JP-A-9-34598 (JP, A) JP-A-5-181430 (JP, A) JP-A-9-237138 (JP, A) JP-A-64-89751 (JP, A) JP-A-10-95146 (JP, A) JP-A-5-103173 (JP, A) JP-A-2-228170 (JP, A) A) JP-A-6-303333 (JP, A) JP-A-10-23179 (JP, A) JP-A-6-233003 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) ) G06F 1/26-1/32 H04N 1/00

Claims (1)

(57) The present invention includes a plurality of function units that execute different functions and a power supply unit that supplies power to the plurality of function units, and consumes the plurality of function units. An electronic device having a power save standby mode for limiting power to be used, a storage unit for storing setting information for enabling / disabling the power save standby mode of the electronic device, and the setting information in the storage unit being a power save standby mode. When indicating the validity, when a predetermined processing request has not been input from the outside for a certain period of time, shift to the power save standby mode, for the power supply unit, restrict the power supply by the power supply unit, When the setting information in the storage means indicates that the power save standby mode is invalid, the power save standby mode is not switched to the power save standby mode. Electronic device characterized in that it comprises a control means for releasing the power saving standby mode when a predetermined processing request occurs. 2. An electronic device having a plurality of functions, including a power supply unit for supplying power to each element for executing the plurality of functions, and capable of shifting to a power save standby mode for limiting power consumed by each element. A registering unit that allows externally registering at least one frequently used function among a plurality of functions of the electronic device; and a period in which the electronic device is in the power save standby mode. On the other hand, an electronic device comprising: a control unit that instructs not to supply power to an element that is not used to execute a function registered in the registration unit. 3. A plurality of functional units for performing different functions and a power supply unit for supplying power to the plurality of functional units, wherein a combination of the functional units supplied with power during the standby mode is different from each other. An electronic device which stands by at one function level selected from a plurality of different function levels, wherein a standard value table storing information indicating a plurality of standard values defining an upper limit of power consumption in a standby mode; A function table for storing information indicating standby power consumption of the electronic device for each of the plurality of function levels; and a power consumption for calculating standby power consumption of the electronic device based on an output current of the power supply unit. Calculating means, and a function level with reference to the standard value table, so that the power consumption calculated by the power consumption calculating means does not exceed a standard value to be satisfied by the electronic device. Electronic device characterized by comprising a selecting means for selecting. Wherein said control means in claim 3, wherein the repeating the process of power consumption calculated in the power consumption calculation means changes the selection means to the less than the standard value to be met by the electronic device An electronic device as described.