JPS61121642A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To eliminate the need for a character ROM for exclusive use of a sub-CPU by turning on a main power supply once when the stand-by power is turned off to on and transferring the content displayed on a display device managed by the sub-CPU to the sub-CPU from the main CPU. CONSTITUTION:The sub-CPU 55 driven by the stand-by the power supply 29 is provided, and after the stand-by power supply 29 is turned on, the main power supply is turned on once, and an itme to be displayed is detected on a display device 52j under the management of the sub CPU 55 after initializing, the content is tansferred to the sub CPU 55. Thus, even if the main power is turned off, the display of the sub CPU 55 is continued by the stand-by power supply 29. Further, the character ROM for exclusive use of the sub-CPU is not required and the structure is simplified.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a facsimile machine, and more particularly, to a facsimile machine that has a standby power supply and is driven by the standby power supply.
The present invention relates to a facsimile device having a PU and a display.

[Prior Art] A facsimile machine is equipped with a standby power supply to keep it in a ready state for reception at all times, and a sub CPU driven by this standby power supply has a built-in or external ROM for display (as a character generator). I was prepared.

In such devices, even in standby power mode, if there is no recording paper, a message such as ``R Kilometers Out'' is displayed on the display.

Therefore, it is extremely convenient for users, but when considering overseas export, each Tagawa's RO is divided into main CPU memory and sub-CPU memory so that it can be used in each country.
Must have M.

As a result, the structure was complicated and the cost was high, which was extremely disadvantageous economically.

That is, in the past, the main power was not normally turned on, but only when the standby power was turned on, a display such as "Kiroku Shiten Ken" was displayed, which caused the above-mentioned inconvenience.

[Purpose] The present invention has been made to eliminate the above-mentioned drawbacks, and eliminates the need for a character ROM dedicated to the sub-CPU.
The purpose is to provide a facsimile device with a simple structure.

[Example] Hereinafter, the present invention will be described in detail based on the example shown in the drawings.

FIG. 1 is a block diagram showing the overall structure of a facsimile machine employing the present invention. In the figure, the symbol l is a crystal oscillator, which generates a reference clock for the entire machine.

The output clock of the crystal oscillator 1 is given as a reference clock to a CPU (central processing unit) 2 composed of a desired microprocessor element and the like. CPU2 connects ROM3, RAM4,
') e-r5, PPI (Programmable P
array l10) 6, 7, 8 and 10, U
It is connected to PI (peripheral CPU) 9.11.

Timer 5. Each PPL6.7 has a modem controller 12. Tonal detector 13. and a modem 14 are connected, and data input/output with the communication line is performed via these input/output ports. Tonal detector 13
．． 14 is connected to a subscriber telephone line W and a telephone 28 via a connection card (wiring board) 26.

PPl6 is for data input/output and power control with the operation panel 31, and is connected to the operation panel 31 and the feed switch 3 via the operation panel/power control device 16.
2 is connected.

The operation panel 31 also has a known telephone switch, which connects the telephone line connected to the facsimile device to the telephone set 28 and allows the switch to switch from facsimile communication mode to normal telephone mode. There is.

UPI9.11 controls the operation of the recording system.

The UPI 9 includes a plunger driver 21 for controlling the recording paper cuff tab plunger 34 and a motor 5 for transporting the recording paper.
A motor driver 22 that controls 5M2 is connected. A thermal head TPH is connected to the UPI 1 l via a thermal head driver 25, and UPIII drives the thermal head TPH in accordance with recording data to perform recording. The recording paper RP is moved by a pinch roller PFI driven by a motor 55M2 as the recording operation progresses.
transported by. Further, a recording paper sensor RPS configured using a photo interrupter, a limit switch, etc. is provided on the conveyance path of the recording paper RP.

PPll0 is used to input and output data to the reading system and alarm system. PPl1O has an image data processor/driver 23. A lamp driver 24 is connected. That is, the document DOC is transported by the feed roller FR while being illuminated by the light source LMP controlled by the lamp driver 24, and the reflected light from the document DOC is converged via the lens L onto the line sensor LS composed of a CCD sensor or the like. imaged.

The image data output from the line sensors I and S is sent to the amplifier 33.
The image data processor/driver 23
and is further sent to the main data bus via the PPI.

Further, a buzzer speaker 19 is connected to the PPll0 via a buzzer driver 1B.

Power for the entire device is supplied from a main power supply device 27. However, in the standby state, this main power supply device 27 is OFF, and the operation panel 31 and N
Only the CU (Network Control Unit) 15 is supplied with power and is in a standby state. These power supplies 27.29
A commercial AC power source is connected to the main switch MSW and the noise filter 30.

The NCU 15 is an NCU that has an automatic reception function, and transmits the line to the telephone 28 in response to a call signal (CI) from the telephone line.
switch from the side to the facsimile machine side. At this time, the main power supply device 27 is activated via the operation panel/power supply control device 16, and the tonal detector 13. Power is supplied to the modem 14. The main power source can also be turned on from the operation panel 31.

FIG. 2 shows a schematic structure of the operation panel 31.

Next, the operation of the apparatus of the present invention constructed as described above will be explained with reference to the flowchart of FIG. 3 and the timing chart of FIG. 4. In FIG. 4, when the commercial power supply in the office is turned on, the standby power supply 29 is always on, and the main power supply 27 is turned on when the standby power supply 29 is turned on and when transmitting, receiving, or when the key is turned on manually.
After each process is completed, it is turned off.

That is, as shown in FIG. 3(A), when the main power supply side is turned on, the main CPU determines in step SO whether or not it is time to start up the standby power supply, and when it starts up, performs initialization in step S2, and in step S3, the main CPU performs initialization in step S2. Information from the sensor 6o is obtained to detect the presence or absence of recording paper, and if there is no recording paper, a display command and display data are transferred to the sub CPU 55 so as to display "kilokushitenken" in step S4.

Subsequently, in step S5, the OFF notice command is transferred to the sub CPU 55, and control of the main CPU is ended.

On the other hand, when the standby power is not turned on, that is, when transmission, reception, key manual commands, etc. are transferred from the sub CPU, the
The FF preview command is transferred to the sub CPU 55.

Subsequently, as shown in FIG. 3 CB), the sub CPU 55 learns that the main power has been turned on in steps 56 and 57, and informs the main CPU 2 that the sub CPU 55 has become operational due to the rise of the standby power. Let me know.

Next, in step S8, a command from the main CPU is waited for, and when a command arrives, it is determined in step S9 whether or not it is a display command.

If it is a display command, display data is input in step S10, and in step 511, the display 52 displays "RKILLOKUSHITENKEN".

Then, in step S12, a command is awaited to determine whether there is a cause for turning off the main power.

The sub-CPU 55 operates on standby power even when the main CPU is OFF, and continues to display "Kirokushitenken".

Then, when the operator notices this display, opens the necessary part of the case of the facsimile machine, and sets the recording paper, it is detected in step S13 that the case is closed,
When the main power is turned on in step 314, the main CPU transfers the display data "kilokushi tenken" to the sub CPU to clear it because there is recording paper. Therefore, the user knows that the recording paper has been set correctly.

Further, the sub CPU monitors key power, automatic reception, etc., and turns on the main power every time there is key power and transfers data to the main CPU (513 to 315).

Also, when a command other than display is received from the main CPU, for example, when an OFF notice command is received, the main power is turned OFF, and other commands are processed accordingly.

In this way, the presence or absence of recording paper and other necessary display items can be continuously displayed without requiring a character ROM dedicated to the sub CPU.

[Effects] As is clear from the above description, according to the present invention, in a facsimile machine equipped with a sub CPU driven by standby power, after the standby power is turned on, the main power is turned on once and initialization is performed. sub CPU
When detecting items that should be displayed on a display under control, the contents are transferred to the sub CPU, so even if the main power is turned off, the sub CPU can continue displaying with standby power. . Furthermore, unlike the conventional sub-CPU, there is no need for a character ROM, which simplifies the structure and reduces costs.

[Brief explanation of the drawing]

The figures are for explaining one embodiment of the present invention, and FIG. 1 is a block diagram of a control circuit, FIG. 2 is a block diagram of a control circuit of an operation panel portion, and FIG. 3 (A). (B) is a flowchart for explaining the control operations of the main CPU and sub-CPU, and FIG. 4 is a timing chart for explaining the ON state of the standby power supply and the main power supply.

Claims (1)

[Claims] In a facsimile machine equipped with a sub CPU driven by standby power and a main CPU driven by main power, when the standby power goes from OFF to ON, the main power is turned ON once, and the sub CPU manages it. A facsimile device is characterized in that content to be displayed on a display device is transferred from a main CPU side to a sub CPU.