JP2608973B2 - Image communication device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an image communication apparatus suitable for miniaturization.

2. Description of the Related Art As shown in FIG. 4, a conventional device of this type includes a reading mechanism unit 100, a recording mechanism unit 150, a main control board 200, an operation panel unit 300, and a power supply unit 400. Image information communication according to the facsimile communication procedure recommended by CCITT (see, for example, JP-A-62-85555).

The reading mechanism unit 100 includes a paper feed roller 104, a guide plate 116, a reading roller 118, a pressing roller 122, a discharge roller 124, and the like. A document travel path A for reading is formed.

The recording mechanism section 150 includes a bending guide section 156, a platen roller 16
2, having a recording paper discharge roller 166 and the like, and a recording paper roll 152
The recording paper traveling path B for causing the thermal head 160 to print and record the received image on the recording paper fed from the printer is formed.

As shown in FIG. 5, the main control board 200 includes a main CPU (main control unit) 202 composed of a general-purpose information processing device in the form of a microcircuit, a so-called microcomputer, an I / O control unit (input / output control unit) 204 , ROM 206, RAM 208, modem 210, NCU
(Line control unit) 212, a codec / decoder 214, a reading / recording control unit 216, a backup power supply 218 by a battery, a reset circuit 220, and a clock function unit 222 with a built-in time reference such as a crystal oscillator. In addition to controlling image information communication by the public communication line L such as a line, the clock function unit 222
, And the reset circuit 220 performs automatic reset at power-on.

As shown in FIG. 5, the operation panel section 300 is provided with a panel control CPU 302 together with a key switch, a display and the like. The panel control CPU 302 is connected to the main control board 20.
It operates under the control of the main CPU 202 on the 0 side to read operation information from a key switch, display information display control, and the like. The display information also includes clock information from the main control board 200.

The power supply unit 400 includes a power supply circuit 402 and a power switch 404 that generate a low-voltage DC power supply from a commercial AC power supply (AC 100 V), and supplies operation power to the main control board 200, the operation panel unit 300, and the like.

In the conventional apparatus described above, in order to reduce the size of the apparatus, as shown in FIG. 4, the main control board 200 and the power supply section 400 are stored below the document traveling path A, while the operation panel section 30 is provided.
Numeral 0 is provided at a position convenient for operation above the document travel path A. With such an arrangement, the mounting efficiency is optimized, and the size of the device can be reduced.

The main CPU 202 and the panel control CPU 302 are controlled by a reset circuit 220 provided in the main control
As shown in the figure, initialization is automatically performed when the power is turned on.

However, according to such a configuration, there is a problem that it is difficult to secure a communication function when control of the device by the CPU does not start normally.

 The above problem occurs for the following reasons.

That is, the reset circuit 220 operates automatically only when the power is turned on. Because of this, the main CPU2
If the 02 or the panel control CPU 302 cannot start up normally, the use of devices operating under those controls becomes completely impossible, and the inconvenience that urgent communication requests cannot be satisfied arises.

The present invention has been made in view of the above-described problems, and even when initialization control of an apparatus cannot be performed by turning on power,
It is an object of the present invention to provide an image communication apparatus capable of initializing the entire apparatus including an apparatus that is manually backed up and operating.

Means for Solving the Problems In order to solve the above-described problems, the present invention provides a backup power supply unit and a backup control for holding management information including job management, timer management, call dial management, and the like using power from the backup power supply unit. Means, a power supply unit for supplying power to the entire apparatus, facsimile control means including communication means, recording means, reading means, and control means for controlling the power unit, and turning on the power supply unit A first initialization setting unit that sometimes initializes the facsimile control unit; and a second initialization setting unit that initializes the backup control by manual operation after power is turned on.

Effect of the Invention The present invention ensures that if the initialization at the time of power-on is not successful, the entire apparatus including the one which is manually backed up in the backup memory and operates is surely initialized. Initialization can be performed.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Note that the same or corresponding parts as those in the conventional art are denoted by the same reference numerals.

FIG. 1 shows a schematic configuration of an image communication apparatus according to an embodiment of the present invention, in which 100 is a reading section, 150 is a recording mechanism section, 200 is a main control board, 300 is an operation panel section, and 400 is a power supply. Department.

The reading mechanism unit 100 includes a paper feed roller 106 that drives the document 102 placed on the document table 104 in the sub-scanning direction,
Separator 108 for separating and transporting the sheets one by one,
The support member 110 of the separator 108, the separator 108
112, which presses the document toward the paper feed roller 106, a spg 114 that elastically urges the pressing member 112,
2, a guide plate 116 for guiding the document 2, a reading roller 118 for further conveying and driving the separated document 102, and a contact type image sensor 120 for reading the document 102 conveyed and driven in the sub-scanning direction line by line in the main scanning direction. Sensor 120
And a discharge roller 124 that discharges the read original 102. Thus, a document traveling path A for reading the document 102 one by one is formed.

The recording mechanism 150 includes a recording paper holder 154 for holding a recording paper roll 152, a bending guide 156 for removing curl (curl) of the recording paper fed from the roll 152, and a recording paper on the bending guide 156. 158, a thermal head 160 that performs thermal recording on the recording paper, and a platen roller 16 that conveys and drives the recording paper while pressing the recording paper against the thermal head 160.
2.Recording paper cutter 1 that cuts recording paper on which recording has been performed
64, chart paper discharge roller 16 for discharging cut recording paper
6. It has a recording paper stacker 168 and the like for depositing the discharged recording paper at a predetermined position. With these, the recording paper roll 1
A recording paper traveling path B for causing the thermal head 160 to print and record the received image on the recording paper fed from the recording paper 52 is formed.

As shown in FIG. 2, the main control board 200 includes a main CPU (main control unit) 202 composed of a general-purpose information processing device in the form of a microcircuit, a so-called microcomputer, an I / O control unit (input / output control unit) 204 , A ROM 206 storing fixed information such as a system program, a RAM 208 storing variable information necessary for controlling the apparatus, a modem 210 for modulating transmitted image information and demodulating received image information, and an NCU for controlling a line L ( Line control unit) 212, a codec / decoder 214 for expanding / compressing image information, a reading mechanism unit 100, and a recording mechanism unit 150.
Read / record control unit 216 for controlling the motors, etc .; a backup power supply 218 using a battery;
A reset circuit 220 for resetting is provided. Thus, the operation of each unit of the apparatus is controlled in a centralized manner to perform image information communication by the communication line L. Further, an operation switch 224 for manually performing the reset is connected. The operation switch 224 is mounted so that the user can arbitrarily operate the switch and does not perform an erroneous operation.

The operation panel section 300 includes a panel control C that operates under the control of the main control board 200 together with a key switch and a display.
A PU 302 is provided, and a clock function unit 222 having a built-in time reference such as a crystal oscillator is provided. Clock function part 2
The power supply 22 is clocked by the backup power supply 218 in the main control board 200 irrespective of whether the power is turned on or not. The clock information created by this clock operation is passed to the main control board 200,
Therefore, it is used for clock management of the device.

The power supply unit 400 includes a power supply circuit 402 and a power switch 404 that generate a low-voltage DC power supply from a commercial AC power supply (AC 100 V), and supplies operation power to the main control board 200, the operation panel unit 300, and the like.

The operation of the image communication device configured as described above will be described below.

In the above-described conventional apparatus, as shown in FIG. 1, first, the main control board 200 and the power supply unit 400 are housed below the original travel path A, and the operation panel unit 300 is used for operations above the original travel path A. It is conveniently located. With such an arrangement, the mounting efficiency is optimized, and the size of the device can be reduced.

Along with this, a clock function unit for clock management of the device
Since 222 is provided on the side of the operation panel section 300, accurate clock information is created in an environment that is relatively unaffected by a rise in internal temperature of the apparatus. Can be handed over to Thereby, the clock management accuracy of the device can be reliably improved.

The reset of the main CPU 202 and the panel control CPU 302 is automatically performed when the power is turned on by a reset circuit 220 and an operation switch 224 provided in the main control board 200. It is also forcibly performed when operated. This allows the user to arbitrarily set the initialization of the device,
Even if the control of the device by U does not start normally, the minimum communication function can be ensured by forcibly initializing by operating the switch 222.

FIG. 3 shows an operation example at the time of initialization setting of the main control board 200 and the operation panel section 300.

In the figure, first, when the power switch 404 is turned on and the power is turned on, a reset signal RS1 is issued from the reset circuit 220 to reset the main CPU 202 (S
1). The reset main CPU 202 uses the initialization routine executed by the reset to execute the modem 210, the NCU 21
2. Initialize the code / decoder 214, the read / record control unit 216, etc. (S2). At the same time, software reset for the panel control CPU 302 is also performed via the main CPU 202, whereby the display state of the operation panel unit 300 is initialized (S3).

Thereafter, it is checked whether the manual operation switch 224 is in the ON operation state (S4).

Here, if the manual operation switch 224 was in the operating state, that is, if the manual operation switch 224 was operated together with the power switch 404, the RAM 20 on the main control board 200
Various management information areas set to 8, for example, JOB
A management area, a command No. management area, a timer command management area, a direct dialing management area, etc. are initialized (S5, S6, S7, S8). Further, a hardware reset signal RS2 is supplied to the panel control CPU 302.
Is issued (S9). At the same time, the main control board 200 clears a panel request counter for registering the number of information requests to the operation panel unit 300 to 0 (S10). After the above-described initialization routine is executed, a routine for requesting clock information from the main control board 200 to the operation panel unit 300 is executed (S11).

On the other hand, if the manual operation switch 224 is not operated, that is, if the manual operation switch 224 is not operated when the power switch 404 is turned on, the initialization routine (S5 to S10) is executed. Instead, a routine for requesting clock information from the main control board 200 to the operation panel unit 300 is executed (S11). When this clock information request is made, the panel request counter is incremented by 1 (S12). Here, if there is a response from the operation panel unit 300 to the request (S13-YES), initialization of the software control flag and status and initialization control of the reading mechanism unit 100 and the recording mechanism unit 150 are performed. After the data is transmitted to the operation panel unit 300 to indicate that the operation is in the standby state, the operation panel unit 300 shifts to the standby state in which the communication operation can be executed (S14, S15, S16).

On the other hand, if there is no response from the operation panel unit 300 in response to the request from the main control board 200 (S13-NO), the request is made again, but if the number of requests exceeds a certain limit, ie, the panel request counter When the step-up value reaches a predetermined value (for example, three times), a routine (S) for issuing a hardware reset signal R2 to the panel control CPU 32
9) and the same operation is repeated from there (S1
7).

As described above, the initialization setting of the apparatus is automatically performed at the time of power-on. In the above-described embodiment, in particular, the range of the initialization setting automatically performed at the time of power-on is smaller than the range of the initialization setting.
The range of initialization setting (S5 to S10) forcibly performed by the manual operation switch 224 is enlarged. As a result, even when the apparatus cannot be started only by the initialization setting at the time of turning on the power, the apparatus can be more reliably started by the forced initialization setting arbitrarily performed by the user. In this case, in the manual forcible initialization setting, there are many types of control information that are erased and lost due to the expansion of the initialization target range, which causes some inconvenience in operation. However, by setting the enlarged range to be initialized, the probability that the apparatus will be started is greatly increased. As a result, the minimum communication function can be secured.

Effects of the Invention As is apparent from the above description, the present invention operates on the power of the power supply unit of the image communication device, and generally includes a recording unit, a control unit, a reading unit,
A first initialization setting unit for initializing a communication unit and the like, and a second initialization setting unit for initializing management information and a timer backed up by a backup power supply unit are provided. By discriminating the devices and initializing the ones that have been manually backed up, there is an effect that the entire apparatus including those that cannot be initialized by normal initialization can be initialized.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an internal structure of an image communication device according to an embodiment of the present invention, FIG. 2 is a schematic configuration diagram of a control portion of the image communication device, and FIG. 3 shows a partial operation example of the device. FIG. 4 is a schematic configuration diagram of the internal structure of the conventional image communication device, FIG. 5 is a schematic configuration diagram of a control portion of the image communication device, and FIG. 6 is a flowchart showing a partial operation example of the device. . 100 reading mechanism, 102 document, 104 document table, 106
... Paper feed roller, 108 document separator, 110 support member, 112 pressing member, 114 spring, 116
Guide plate, 118: reading roller, 120: image sensor, 122: pressing roller, 124: discharge roller, 150:
Recording mechanism section, 152: Recording paper roll, 154: Recording paper holder, 156: Bending guide section, 158: Press spring, 160: Thermal head, 162: Platen roller, 164: Recording paper cutter, 166: Recording paper discharge roller, 168: Recording paper stacker, 200: Main control board, 202: Main CPU, 204: I / O control unit, 206: ROM, 208: RAM, 210 ... Modem, 212 ...
… NCU, 214… codec / decoder, 216… read / record control unit, 218… backup power supply, 220… reset circuit,
224 Operation switch, 300 Operation panel, 302
Panel control CPU, 222: clock function unit, 400: power supply unit, 402: power supply circuit, 404: power switch, A: original travel path, B: recording travel path, L: communication line.

Claims (1)

(57) [Claims] 1. A backup power supply unit, backup control means for holding management information including job management, timer management, call dial management, and the like using power from the backup power supply unit, and a power supply unit for supplying power to the entire apparatus. A facsimile control means comprising communication means, recording means, reading means and control means for controlling these means, and a facsimile control means for initializing the facsimile control means when the power supply is turned on. An image communication apparatus comprising: an initialization setting unit; and a second initialization setting unit that initializes the backup control by a manual operation after power is turned on.