JPH0670083A - System composite device - Google Patents

Abstract

PURPOSE:To prevent conductive noise generated from a personal computer side by supplying power source to the personal computer side from a facsimile side. CONSTITUTION:A P.C 1 is a notebook type or book type personal computer and by combining the P.C 1 and a FAX 3 with a P.C I/F part 4, the FAX 3 is used as a printer or a scanner. For the supply of the power for the P.C, a DC power source is supplied from the FAX side through the P.C I/F part 4 for mutual connection.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system composite machine, and more particularly to a system composite machine in which power is supplied to a personal computer side from a facsimile side to prevent conduction noise generated from the personal computer side.

[0002]

2. Description of the Related Art In recent years, as a usage mode of a facsimile, a personal computer (PC) is joined, data created on the PC side is transferred to a FAX, and is recorded using a FAX recording unit. It is becoming more popular to use the reading unit to import data to the PC side and edit the data. On the other hand, PC or FAX CPU
This is an electronic device using a (central processing unit), and in order to pursue higher speed and higher functionality, the oscillator that drives the CPU becomes faster year by year, and EMI (Electroma
gnetic Interference: Electromagnetic interference is also increasing. Therefore, this radio wave regulation exists all over the world. Since it is not possible to sell without clearing this standard, each manufacturer is currently using a great deal of effort to develop equipment in order to clear this radio wave standard. It goes without saying that this is the current state of development with PC alone and FAX alone, and it is even more difficult to provide these two products as one unit to users. Although there are differences in this radio wave standard in each country around the world, it is roughly divided into conducted noise (10k to 30M) transmitted through the power cord.
Radiation noise (30k ~ 10) transmitted in the air (below HZ)
00MHZ) and is regulated. On the other hand,
It is general that the PC can be used as an AC adapter alone or as a battery.

[0003]

[Purpose] The present invention has been made in view of the above circumstances, and in a FAX integrated with a PC, the power supply to the PC side will be performed from the FAX side and will be output from the PC side. Eliminating conduction noise and providing a safer PC / FAX fusion function, and the power supply from the FAX side to the PC side has been the drive output conventionally required for FAX systems. System through a relay system to connect P.C. to easily achieve without changing the PSU on the FAX side, and with a cheaper lead configuration, shorten the development period. It is made for the purpose of providing.

[0004]

In order to achieve the above object, the present invention provides (1)
In a multi-function peripheral in which a facsimile and a personal computer are connected and used, an interface board for interconnection is provided on the facsimile side, and DC power is supplied from the facsimile side via the interface board to supply power for the personal computer. If the power source of the personal computer side is a secondary battery when the power source is supplied to the personal computer side,
The relay arranged on the interface board is turned on / off from the system side.
(3) In (3) above (1) or (2), the use of the copy mode is restricted when the power cannot be supplied from the facsimile side. . Hereinafter, description will be given based on examples of the present invention.

FIG. 1 is a block diagram for explaining an embodiment of a system multifunction peripheral according to the present invention. In the figure, 1 is a personal computer (PC) and 2 is an A.
C adapter, 3 facsimile (FAX), 4 PC
The I / F (interface) unit and 5 are PSUs.
P.C1 is a notebook or BOOK type personal computer. P.C I / F section 4 is 30, P.C1
This is a circuit in which the FAX 3 can be used as a printer or a scanner by combining the FAX 3 and the FAX 3. AC adapter 2
AC / Required when using PC from AC outlet
It is an adapter for DC conversion. As shown in FIG. 2 (a), the FAX power supply capacity requires various motors, light sources, and solenoids in the FAX, and this power supply capacity is much higher than the output capacity of other channels. At present, it is set to 6 A at maximum.
The power supply for PC is connected to the PC I / F section 3 for interconnection.
Supply from the FAX side.

FIG. 3 is a diagram for explaining a method of supplying power to the PC of the system composite machine according to the present invention. In the figure, 6 is a system controller, 7 is a recording controller, and 8 is communication control. 1, 9 is a read control unit, 10 is a relay, 11 is a relay driving transistor, and other parts having the same functions as those in FIG.

The relay 10 is turned on by the PC on signal from the FAX system control unit 6, and the PC I / F unit 4 is turned on.
And P.C1. Also,
The drive power supply used on the FAX side is + 24V here.
However, since the power is supplied to the PC I / F unit 4 and the PC side, DC / DC voltage conversion is performed and the PC I / F is
Whether the unit 4 is connected is identified by the system control unit 6
The IF on signal of is low. In addition, the DC / DC section of the PC I / F section 4 is distinguished from a, b, and c, where a is the access from the PC after the power is turned on and the entire system operates in the FAX mode. It is for the power supply of the circuit part for checking whether there is, and here it is used as the standby power supply (of the PC I / F part),
It is always supplied by connecting the PC I / F unit 4. b and c are the form of the power supply on the FAX and PC side.
If the power supply of is sufficient, use it in the form of always ON. If the power source on the PC side is a rechargeable secondary battery, the relay can be turned ON / OFF using the PC ON signal at the required timing.
It can be used according to the power supply type of AX and PC.

2 (b) and 2 (c), when the FAX cannot always supply power to the aforementioned DC / DC sections b and c, the COPY is the least frequently used in the FAX mode.
It is shown in the figure that by limiting the mode, it becomes possible to connect a PC I / F to a conventional FAX and easily realize a multifunction machine that can be accessed by the PC.

FIG. 4 is a flow chart for explaining the operation of the system multifunction peripheral according to the present invention. The steps will be sequentially described below. Step1 ； Turn on the power and judge whether or not it is connected to the PC I / F section. Step2 ； If not connected, perform FAX mode operation. Step3 ; Next, it is judged whether or not it is the access mode. If it is not the access mode, the process returns to Step 2. Step4 ; If it is connected to the PC I / F section in the above Step1, it is judged whether or not the PC access mode is set. If it is not the PC access mode, the process returns to Step 2. Step5 ; If the PC access mode is set in Step4, the FAX copy mode is prohibited. Step6 ； P.C I / F part and P.C.
Supply power to the C side and perform FAX / PC mode operation.

FIG. 5 is a diagram showing an application example of the system multifunction peripheral according to the present invention, in which 12 is an operation panel,
Reference numeral 13 is a stand, 14 is a recording paper tray, and other parts having the same functions as those in FIG. FAX3
An operation panel 12 is provided in the computer, and the operation panel 12 is operated to have different functions. A removable table 13 is provided on the right side of the operation panel, and a PC 1 is provided on the table 13. This enables stable operation.

[0010]

As is apparent from the above description, the present invention has the following effects. (1) The AC adapter on the PC side is not required in the multifunction machine that is used by connecting the FAX and the PC, the conduction noise generated from the PC side is eliminated, and it is cheaper and the development period can be further shortened. (2) Various FAs to which the interface board is connected
Low power consumption is possible in the combination of X and PC.

[Brief description of drawings]

FIG. 1 is a configuration diagram for explaining an embodiment of a system multifunction peripheral according to the present invention.

FIG. 2 is a diagram showing FAX power supply specifications and the like according to the present invention.

FIG. 3 is a diagram for explaining a method of supplying power to PC of the system multifunction peripheral according to the present invention.

FIG. 4 is a flowchart for explaining the operation of the system multifunction peripheral according to the present invention.

FIG. 5 is a diagram showing an application example of the system multifunction peripheral according to the present invention.

[Explanation of symbols]

1 ... Personal computer (PC: Personal Comput
er), 2 ... AC adapter, 3 ... Facsimile (FA
X), 4 ... PC I / F (interface), 5 ...
PSU.

Claims (3)

[Claims] 1. In a multi-function peripheral in which a facsimile and a personal computer are connected and used, an interface board for interconnection is provided on the facsimile side, and power supply for the personal computer is supplied from the facsimile side via the interface board. A system multi-function machine characterized by supplying DC power. 2. When supplying power to the personal computer side, if the power source of the personal computer side is a secondary battery, a relay arranged on the interface board is turned on / off from the system side. The system multifunction peripheral according to claim 1, wherein: 3. The system multifunction peripheral according to claim 1, wherein use of a copy mode is restricted when power cannot be supplied from the facsimile side.