JP2940837B2 - Facsimile machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable facsimile apparatus operable with either a battery power supply or an external power supply.

[0002]

Conventionally, in the mobile type facsimile device,
The operation of the facsimile main body can be performed by either a power supply of a rechargeable battery detachably mounted on the facsimile main body or an external power supply selectively connected to the facsimile main body.

For example, in a place such as an office where a connection can be made to a communication line and a commercial power supply, an AC adapter or the like is used, and operation is performed by the external power supply. Further, in places where a communication line can be secured by a car phone, a mobile phone, or the like, but a commercial power supply cannot be connected at a place where the user is out of the office, the device is operated with a power supply of a rechargeable battery.

By making the rechargeable battery detachable, even if the installed rechargeable battery runs out of battery,
By replacing the spare rechargeable battery, the facsimile machine can be used continuously. In such a facsimile apparatus, since a detachable rechargeable battery is used, the selection of the power source, such as whether to use the power source of the rechargeable battery or an external power source, is switched by manual operation of a changeover switch. I have. A rechargeable battery that has run out of battery is removed from the facsimile body and charged by a dedicated charger.

[0005]

In a conventional portable facsimile apparatus, selection of a power supply to be used, charging of a rechargeable battery, and the like have to be manually switched, which is troublesome.

Moreover, in general, when the power supply of the rechargeable battery is used, the power consumption is maintained in the same state as when the external power supply is used, so that the power of the rechargeable battery tends to be consumed relatively quickly. That is, conventionally, when a power source of a rechargeable battery is used, no special means is provided for suppressing power consumption of the rechargeable battery.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and automatically performs appropriate selection switching between an external power supply and a rechargeable battery, charges a rechargeable battery, and sets a hold mode. Release and release are automatically performed in conjunction with the switching operation, further reducing the time and labor required for manual switching, and reducing the power consumption of the rechargeable battery by efficiently setting the hold mode. Fac
It is an object of the present invention to provide a similiar device .

[0008]

The present invention SUMMARY OF] is the rechargeable battery that is removably attached to the facsimile <br/> body power and factories
Any external power supply that is selectively connected to the simiri body
Facsimile equipment that enables operation of the facsimile body
In location, a battery voltage detecting means for detecting a charging state detects the attachment of the rechargeable battery, a charging circuit for charging the rechargeable battery by the external power source, external to detect the presence or absence of connection of the external power supply Power supply detection means, and connection of the external power supply is detected by the external power supply detection means.
And that the external power source to charge the rechargeable battery by the pre-Symbol charging circuit together when operating the facsimile main body upon which, the connection of the external power supply is detected, such bur the
When rechargeable battery is not detected connection of the external power source through the the rechargeable power supply by the facsimile main unit power Ru operate the unit controller of the battery, the external power supply detecting means when more than a predetermined voltage, or the external power source Connection detected
Power supply control when the rechargeable battery is below a predetermined voltage.
Set Then Tomo the hold mode to reduce power consumption of the part
In the, when the connection of the external power supply is detected, or connection of the external power supply is not detected but rechargeable batteries predetermined voltage or higher
When the facsimile body is operated, a power control unit
And a hold mode means for canceling the hold mode.

[0009]

According to the present invention, whether or not the external power supply is connected is detected by the external power supply detection means.

[0010] Then, when the external power supply is connected, Ho
Release the hold mode to reduce the power consumption of the power control unit by Rudomodo means, off the external power supply by the power control unit
Activating the facsimile body and charging control means
Causes the charging circuit to charge the rechargeable battery.

When an external power supply is not connected,
A hold mode for suppressing power consumption of the power supply control unit is set by the hold mode means . When the connection of the external power supply is not detected but the rechargeable battery is operated at a predetermined voltage or more and the facsimile main body is operated, the power is supplied by the hold mode means.
To release the hold mode to reduce the power consumption of the source control unit,
The facsimile main body is operated by the power supply of the rechargeable battery by the power supply control unit, and when the rechargeable battery is detected to have dropped below the predetermined voltage by the battery voltage detecting means, the facsimile main body is controlled by the power supply control unit. Unit operation is stopped, and the power control unit is
Set the hold mode to reduce the power consumption of the

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of an embodiment of the present invention will be described below with reference to the drawings.

[0013] Figure 2 shows an appearance of a portable facsimile apparatus 1 in full Akushimiri body, feeding mechanism of the transmission original or a recording sheet for receiving, reading means of the transmission document, the printing means for receiving data on the recording sheet And a communication circuit including a modem connected to a communication line and performing transmission and reception.

A transmission document insertion slot 2, a recording paper insertion slot 3, and an operation unit 4 provided with various keys and a display are provided on the upper surface of the facsimile main body 1, and a transmission document and recording paper discharge port are provided on the front surface. 5 are provided. Further, a cover 6 is provided on the upper surface of the facsimile main body 1 so as to be openable and closable.

Reference numeral 11 denotes an AC adapter.
One of the cords 13 drawn from 12 is provided with a plug 14 to be connected to an outlet of a commercial power supply, and the other cord 15 is a jack (described later) provided on the rear surface of the facsimile main body 1.
A plug 16 connected to 33 is provided, and a commercial AC power supply is supplied to the facsimile main body 1 as a DC power supply by a power supply circuit including a transformer built in the adapter main body 12.

Further, reference numeral 21 denotes a rechargeable battery, which employs a battery pack system in which a battery body 42 described later is housed in a case 22, and which is detachably mounted in a battery housing recess (not shown) on the bottom surface of the facsimile body 1. You. When the rechargeable battery 21 is attached to the facsimile main body 1, the case 22
The plurality of terminals 23 provided on the surface of the battery and the corresponding terminals provided in the battery housing recess are electrically connected.

[0017] Figure 1 shows a block diagram of a power supply circuit built in the facsimile main body 1, 31 is a row tofu Akushimiri body portion and the like transmitted and received as described above, the facsimile main body portion
A jack 33 to which the plug 16 of the AC adapter 11 is connected, that is, an external power supply and the rechargeable battery 21 are connected in parallel via diodes 34 and 35 to a main switch 32 composed of a relay switch for turning on and off the 31. .

A charging circuit 36 has an input side connected to an external power supply and an output side connected to the rechargeable battery 21. The charging circuit 36 includes a quick charging circuit 37 and a trickle charging circuit 38. One of the charging circuits 36 is selectively connected to the input side by a switch 39, and the other is connected to the output side via diodes 40 and 41, respectively. Connected.

The rechargeable battery 21 has a battery body 42, and is connected to the main switch 32 via a switch 43 connected in series to the battery body 42. And the battery body
The output side of the charging circuit 36 is connected to 42.

Further, reference numeral 51 denotes a power supply control unit. The power supply control unit 51 is connected to an external power supply and the rechargeable battery 21, and operates on at least one of the power supplies. In the power supply control unit 51,
A function of a battery voltage detecting means 52 for detecting a supply voltage from the rechargeable battery 21, a function of an external power detecting means 53 for detecting whether or not the external power is connected depending on whether or not the external power is supplied; And a function of a hold mode means 54 for stopping the operation of the unit 51 and minimizing power consumption. Then, an input operation of the power key 55 provided on the operation unit 4,
The main switch 32 is turned on / off based on a power-off command or the like from the facsimile main body 31, and the connection of the switch 39 of the charging circuit 36 is controlled to be switched.
43 on / off control.

Next, the control operation by the power supply control unit 51 will be described with reference to FIG.
This will be described with reference to FIG.

First, by the function of the external power supply detecting means 53,
It is determined whether the external power supply is connected to the facsimile main body 1 based on whether the external power supply is supplied to the power supply control unit 51 (step 1).

If an external power supply is connected, the hold mode is released if the hold mode is set, and then whether the rechargeable battery 21 is attached to the facsimile main body 1 is checked by a battery voltage detecting means 52. By the function of (1), it is determined from whether or not the battery power is supplied (steps 2 and 3).

If the rechargeable battery 21 is mounted, the switch 43 of the rechargeable battery 21 is turned off, and the state of charge of the rechargeable battery 21 is detected by the function of the battery voltage detecting means 52 (steps 4 and 5). .

If charging is necessary, the switch 39 of the charging circuit 36 is connected to the quick charging circuit 37 to perform quick charging (step 6). On the other hand, if the battery is fully charged or becomes fully charged by rapid charging, the switch 39 of the charging circuit 36 is connected to the trickle charging circuit 38 to perform trickle charging (step 7).

When the power key 55 is operated and turned on, the main switch 32 is turned on and external power is supplied to the facsimile main body 31 (steps 8 and 9).

If the power key 55 is operated again to turn off the main switch 31, or if a power off command is input at the end of the operation of the facsimile main body 31, the main switch 32 is turned off (steps 10 and 11).

Thereafter, the flow returns to step 1 and step 8
To wait for the next power key 55 operation.

On the other hand, if it is determined in step 1 that the external power supply is not connected, the state of charge of the rechargeable battery 21 is detected by the function of the battery voltage detecting means 52, and it is determined whether the voltage has dropped to a predetermined voltage. (Step 12).

Here, if it is determined that the rechargeable battery 21 having a voltage lower than the predetermined voltage is mounted, a visual warning display such as lighting or blinking of a lamp provided on the facsimile main body 1 or a buzzer or the like is performed. Performs a warning display by sound,
The function of the hold mode means 54 stops the operation of the power supply control unit 51 to minimize power consumption (step 1).
3, 14). This makes it possible to prevent and completely protect the rechargeable battery 21 from being completely discharged.

If it is determined that the voltage is equal to or higher than the predetermined voltage, the hold mode is set, and the operation waits until the power key 55 is operated (steps 15 and 16).

When the power key 55 is operated and turned on, the hold mode is released and the switch of the rechargeable battery 21 is switched off.
While turning on 43, the main switch 32 is turned on to supply the power of the rechargeable battery 21 to the facsimile body 31 (steps 17, 18, 19).

During the operation of the facsimile main body 31, the voltage of the rechargeable battery 21 is always detected (step 20).

If the voltage of the rechargeable battery 21 drops below the predetermined voltage during the operation of the facsimile main body 31, a warning is issued as described above, the main switch 32 is turned off, and the hold mode is set (step 21). , 22, 23).

If the power key 55 is operated again and the power is turned off, or if the power off command is input at the end of the operation of the facsimile main body 31, the main switch 32 is turned off and the hold mode is set (step S1). 24, 25, 2
6).

Thereafter, the flow returns to step 1 and step 16
To wait for the next power key 55 operation.

As described above, an appropriate power source can be selectively switched depending on whether or not an external power source is input, and when the external power source is input, the rechargeable battery 21 can be reliably charged. Sometimes, when the voltage drops below the predetermined voltage, the subsequent power consumption can be limited to a minimum to protect the rechargeable battery 21.

Since the rechargeable battery 21 is detachable, even if the installed rechargeable battery 21 runs out of power,
If the spare rechargeable battery 21 is replaced, the facsimile machine can be used continuously.

[0039]

According to the present invention, to detect the presence or absence of a connection of the external power supply, to charge the rechargeable battery together when operating the facsimile main body by the external power supply to Rutoki are external power supply connection, bur rechargeable electric external power supply is not connected
When the battery voltage is higher than the specified voltage ,
Operates the Kushimiri main body can and Turkey, moreover, when connection of the external power supply is not detected or rechargeable batteries predetermined voltage
If the following conditions are met, set the hold mode to reduce the power consumption of the power control unit , and detect the connection of the external power supply.
Is Lena bur rechargeable battery is detected the connection and external power supply when the
When full Akushimiri main body is operated at a predetermined voltage or more,
The hold mode for suppressing power consumption of the power supply control unit can be released. Therefore, appropriate selection switching between the external power supply and the rechargeable battery, charging of the rechargeable battery, and the like can be automatically performed, and setting and release of the hold mode for suppressing power consumption of the power supply control unit are also linked to the switching operation. This can be performed automatically, the labor of manual switching or the like can be further reduced, and the power consumption of the rechargeable battery can be suppressed by setting the hold mode efficiently.

[Brief description of the drawings]

FIG. 1 is a block diagram of a portable facsimile apparatus showing one embodiment of the present invention.

2 is a perspective view of the same facsimile apparatus.

FIG. 3 is a flowchart illustrating a control operation by a power supply control unit of the facsimile apparatus .

[Explanation of symbols]

1 full Akushimiri body 21 rechargeable battery 31 off Akushimiri body portion 36 the charging circuit 51 the power source control unit 52 the battery voltage detector 53 external power supply detecting means 54 hold mode means

────────────────────────────────────────────────── ─── Continued on the front page (56) References JP-A-2-222357 (JP, A) JP-A-63-262709 (JP, A) JP-A-2-57233 (JP, U) (58) Survey Field (Int.Cl. ⁶ , DB name) H04N 1/00 H02J 9/06 H02J 7/00

Claims (1)

(57) [Claims] 1. A facsimile apparatus which enables the operation of the facsimile main body either the external power supply that is selectively connected to the power source and the facsimile apparatus of the rechargeable battery to be detachably attached to the facsimile main body, said rechargeable Battery voltage detecting means for detecting the installation of a battery and detecting a charged state; a charging circuit for charging the rechargeable battery with the external power supply; and an external power supply detecting means for detecting whether or not the external power supply is connected; wherein the external power source detection means external power source connection detection
Is that by the external power supply to charge the rechargeable battery by the pre-Symbol charging circuit together when operating the facsimile <br/> body portion when being, bur such detected connection external power supply
Said rechargeable battery is its rechargeable power supply control unit for the facsimile main body Ru is operated by a power source of the battery when the above predetermined voltage, when said undetected external power connection of the external power supply by detecting means, or external Power connection not detected before
When serial rechargeable battery is less than a predetermined voltage, and sets the hold mode to suppress <br/> power consumption of the power control unit,
When the connection of the external power supply is detected, or connection of the external power supply is not detected but rechargeable batteries wherein a predetermined voltage or higher
When the facsimile main unit is operated, the facsimile apparatus being characterized in that a hold mode means for releasing the e <br/> Rudomodo the power control unit.