JPH05191618A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To provide a facsimile equipment capable of automatically sending a picture of an original again when a line is interrupted on the way of transmission of the picture of the original. CONSTITUTION:When the transmission of an original whose picture is read by a line sensor 1a is interrupted on its way due to line interruption, a system control section 17 controls the carrying based on a signal from an original detection sensor 21a to set the original to a read start position and controls the re-connection of a telephone line 10 to a preceding transmission destination and starts reading of an original when the connection is finished to send again the picture information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile apparatus for reading an image of an original and transmitting image information corresponding to the read image to a desired destination using a telephone line.

[0002]

2. Description of the Related Art FIG. 6 is a block diagram showing the structure of a conventional facsimile apparatus.

A facsimile machine is constructed by connecting a scanner 1, a plotter 2, an encoding / decoding section 3, a modem 4, a network control section 5, an operation display section 6, a system control section 7, etc. to a system bus 8. There is.

Further, the scanner 1 has a line sensor 1a.
Further, a telephone 9 is connected to the network control unit 5, and the network control unit 5 is configured to be accessible to the telephone line 10.

The scanner 1 reads a document image by the line sensor 1a and converts it into image information, and the plotter 2 records the image on a recording sheet based on the image information.

The encoding / decoding unit 3 uses the MH system (Modifided).
The image information output from the scanner 1 is encoded by a known encoding method such as Huffman Coding) to compress the data, or the received image information is decoded and output to the plotter 2.

The modem 4 modulates and demodulates the encoded image information and the procedure signal for transmission control, and transmits and receives to and from the telephone line 10. The network control unit 5 also controls the line for transmission and reception.

The operation display unit 6 outputs a signal corresponding to the operation to the system control unit 7 or the like when a predetermined operation is performed by the operator, or displays the operating state of the apparatus and various alarms to the operator. To do.

The system control unit 7 is composed of a microcomputer, a memory, etc., and outputs a signal to each member described above and a document feeding mechanism (not shown) via the system bus 8 to output the entire apparatus. Control.

The transmission operation of the above known facsimile apparatus will be briefly described.

In the facsimile machine in which the telephone line 10 is connected to the destination facsimile machine, the document is conveyed by the conveying mechanism and the image is optically read by the line sensor 1a at the reading position. The signal from the line sensor 1a is converted into image information in the scanner 1, and the image information is subjected to a predetermined process by the encoding / decoding unit 3 and the modem 4 and then the telephone line.
It is output via 10 to the destination facsimile machine.

[0012]

However, in the facsimile apparatus having the above-described structure, when a telephone line such as a car telephone line which may cause an unstable connection state is used, image information of one original is transmitted. The line may be disconnected during the operation. In such a case, generally, the system control unit 7 performs control so as to forcibly stop the operation of the device and display an alarm on the operation display unit 6.

At this time, the operator must collect the original from the inside of the apparatus, set the original in the apparatus again, and perform an operation for transmission such as setting a dial number from the beginning.

As described above, the conventional facsimile apparatus has a problem that the operation is complicated when the line is disconnected during the transmission of the original image.

An object of the present invention is to solve the above-mentioned problems, in the case where the line is disconnected during the transmission of an original image,
It is an object of the present invention to provide a facsimile device that can automatically retransmit an original image.

[0016]

In order to solve the above problems, the present invention comprises a conveying means for conveying a document and an image reading means for reading an image of the document conveyed by the conveying means. In a facsimile apparatus for transmitting image information of an image read by a means to a line held in a connected state, when the line is disconnected during transmission of image information corresponding to one document, In order to set the document at a reading start position where the image reading unit can read the document from the beginning, a control unit that re-conveys the document to the reading start position by the conveying unit is provided.

Further, if the line is disconnected by the control means during the transmission of the image report corresponding to one original, the line is re-connected to the previous destination and the image information is transmitted. Is configured to be retransmitted.

Further, the control means is provided with means for setting the number of times of execution of reconnection of the line due to interruption of transmission and re-transmission of the image information.

[0019]

According to the above means, the control means for controlling the conveying means for re-conveying the original document to the reading start position when the line is disconnected during the transmission of the image information corresponding to one original document. Thus, the original can be automatically set at the reading start position.

Further, when the line is disconnected during the transmission of the image information corresponding to one original, the line is reconnected to the previous destination and the image information is transmitted to the destination. The control means for retransmitting the data can automatically reconnect the line and retransmit the image information.

Further, the upper limit of the number of times of reconnecting the line and retransmitting the image information by the means for setting the number of times of reconnecting the line and retransmitting the image information due to the transmission interruption to the control means. Can be set.

[0022]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

In FIG. 1, the members described with reference to FIG. 6 are designated by the same reference numerals and the description thereof will be omitted.

2 to 4 are explanatory views showing the structure and operation of the main part of this embodiment.

The system control unit 17 includes a document detection sensor 21.
The a and the original detection sensor 21b are connected to each other, and the original detection sensors 21a and 21b detect the presence of the original D at the facing position and output original detection signals.

As shown in FIG. 2, the essential parts of this embodiment are original document detection sensors 21a and 21b connected to the system control unit 17 described above, a line sensor 1a which is an original image reading means, and an original document conveying means. It is composed of rollers 22a, 22b, 22c and the like.

The operation of reading a document image in this embodiment will be described with reference to FIG.

At the time of reading, the document D is nipped by rollers 22a and 22b forming a roller pair, and further, a line sensor 1a and a roller 22c which are contact type sensors.
It is sandwiched between and. At this time, each roller 22a, 22
b and 22c rotate in the direction of arrow A1 to move the document D in the reading direction (direction of arrow B1), and the roller 22c rotates and applies a force to the document D in the direction of arrow C. The image forming surface of the document D is brought into pressure contact with the line sensor 1a.

An image of the document D moving at a constant speed is optically read by the line sensor 1a at a constant cycle, and a read signal output by the line sensor 1a is converted into image information by the scanner 1.

Further, the image information converted by the scanner 1 is coded and modulated, and is transmitted to the destination facsimile machine through the telephone line 10 at substantially the same time as the reading timing.

Further, the reading start timing and the reading end timing of the image on the conveyed document D are judged by the system control section 17 based on the output timing of the document detection signal of the document detection sensor 21a.

FIG. 5 is a flow chart showing the operation when the line is disconnected during the transmission of image information in this embodiment.

The operation when the line is disconnected during the transmission of the image information will be described with reference to FIGS.

FIG. 2 shows a state at the time of executing reading of the image of the document D and transmission of image information corresponding to the read image. At this time, if the system control unit 17 detects a disconnection in the telephone line 10, the system control unit 17 will
Processing is performed according to the flowchart shown in FIG.

If the line is disconnected during the transmission, the operation of the apparatus such as document feeding and image reading is temporarily stopped.
(S1), when it is determined that the return conveyance mode is set (S2), the number of redials N is set to the number of executions n (S3). When it is determined that N ≠ 0 (S4), it is then determined that the document detection sensor 21a is ON (S4).
5).

When it is confirmed that the document detecting sensor 21a is turned on, the rollers 22a, 22b, 22c are rotated in the direction opposite to that at the time of reading (direction of arrow A2) (S6). Rollers 22a, 22b, 22c
The document D is moved in the direction of arrow B2 by rotating the document in the direction of arrow A2. FIG. 3 shows a state in which the document D is moving in the direction opposite to that in reading.

By moving the document D to a position not facing the document detection sensor 21a, the document detection sensor 21a
Turns off (S7). After t seconds after the document detection sensor 21a is turned off, the rotation of the rollers 22a, 22b, 22c is stopped and the return conveyance is completed (S8). Also, at this time, by confirming that the document detection sensor 21b is ON (S
9) Confirm that the document D is held in the conveyance path.

FIG. 4 shows a state at the end of the return conveyance for the document D.

At the end of the return conveyance, the document D delays the end of the return conveyance in S8.

[0041]

[Outer 1]

It is in a state of being stopped at the set position.

In S2, S4, S5, and S9 of the above flow, when each determination item is determined to be "no" and the flow branches, until the error is canceled by the backup operation from the outside, the device The state is held (S21).

When it is confirmed that the document detection sensor 21b is ON, the redial mode is further determined (S10).

When the redial mode is not set, the document D is held at the position shown in FIG. 4 until the operator performs an operation for starting transmission (S2
2).

When the redial mode is set, the execution number n is decremented by 1 (S11), and the line is connected based on the previously set dial number stored in the memory of the system control unit 17. Control is performed (S12).

Here, the number of executions n can be set by the operator via the operation display unit 6 to a desired numerical value for the system control unit 17, and the system control unit 17 displays image information due to disconnection of the line. Retransmission is repeated until the set number of executions n times for the same document. By setting the number of executions n, it is possible to prevent incomplete image information from being transmitted many times when the connection of the line is extremely unstable.

When the line connection is completed (S13), the process for disconnecting the line is ended, and the image information of the document D is transmitted again from the beginning. Therefore, the document D at a predetermined position is conveyed and the image is read. To start.

According to the facsimile apparatus having the above structure, even when the telephone line 10 is disconnected during the transmission of the image information of the document D, the document D is conveyed in the direction opposite to the reading direction, and the document detection sensor is used. By stopping at a predetermined position based on the document detection signal of 21a, the document D can be set at a position where the line sensor 1a can read from the image end, and the mode set by the system control unit 17 or the remaining By executing the retransmission operation based on the number of executions n, for example, image information can be automatically retransmitted to a destination whose transmission was interrupted halfway,
Alternatively, when the line connection state is extremely unstable, the retransmission can be stopped at a desired number of times.

[0050]

As described above, according to the present invention,
If the line is disconnected during the transmission of the image information corresponding to one original, the transmission of the image information is interrupted by the control means that controls the conveying means to re-convey the original to the reading start position. Since the manuscript can be set at the reading start position, it is possible to eliminate the work of collecting the manuscript from the inside of the device by an operator or the like, and setting the manuscript to the device. If the line is disconnected, the control means for reconnecting the line and retransmitting the image information can automatically reconnect the line and retransmit the image information. The operation for re-sending such as setting a number can be eliminated, and the means for setting the number of times of re-connecting the line and re-transmitting the image information to the control means can be used. Since the upper limit of the number of times of reconnection and image information retransmission can be set, a facsimile device capable of preventing incomplete image information from being transmitted a large number of times, for example, when the connection state of the line is extremely unstable, is provided. Can be provided.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

2, FIG. 3, and FIG. 4 are explanatory diagrams showing the configuration and operation of the main part of this embodiment.

FIG. 5 is a flowchart showing an operation when the line is disconnected during the transmission of image information in this embodiment.

FIG. 6 is a block diagram showing a configuration of a conventional facsimile apparatus.

[Explanation of symbols]

1 ... Scanner, 1a ... Line sensor, 3 ... Encoding / decoding section, 4 ... Modem, 5 ... Network control section, 6 ... Operation display section, 8 ... System bus, 10 ... Telephone line, 21a, 2
1b ... original detection sensor, 22a, 22b, 22c ... rollers.

Claims (3)

[Claims] 1. A transporting means for transporting a document, and an image reading means for reading an image of the document transported by the transporting means, wherein image information of an image read by the image reading means is held in a connected state. In a facsimile apparatus that transmits to a line, the line can be read by the image reading unit from the beginning if the line is disconnected while image information corresponding to one document is being transmitted. A facsimile apparatus, comprising: a control unit that causes the document to be re-conveyed to the reading start position by the conveying unit in order to set the document at a possible reading start position. 2. If the line is disconnected by the control means during the transmission of an image report corresponding to one document, the line is reconnected to the previous destination and the image information is transmitted. 2. The facsimile apparatus according to claim 1, wherein the facsimile apparatus is configured to retransmit. 3. The facsimile apparatus according to claim 2, further comprising means for setting the number of times of reconnection of the line due to interruption of transmission and re-transmission of the image information to the control means.