JPH0573307B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to transmission control of a plurality of original documents in a facsimile apparatus of a fixed original type.

<Prior art> Conventionally, when document fixed-type facsimile machines place multiple documents on a stacker and send them, they install hardware (switch, photo coupler, etc.) in the document transport path to detect the presence or absence of the next document. However, facsimile machines that fix originals remove the original after sending one original.
In this method, the original is replaced with the next original and sent again. Therefore, it is difficult to detect the presence or absence of the next document, and at present, such a switch is usually not provided.

<Problems to be Solved by the Invention> Therefore, in general, facsimile devices disconnect the line if no data is sent for a predetermined period of time, and in facsimile devices that fix originals, the line disconnects while exchanging documents. This resulted in the inconvenience of having to dial multiple times when sending multiple documents.

The present invention has been made in view of the conventional drawbacks, and an object of the present invention is to provide a facsimile device that maintains a line while exchanging documents by transmitting a pseudo signal in a facsimile device that fixes a document. .

<Means for Solving the Problems> The present invention provides a facsimile device with a fixed document type, which includes a transmission key for instructing the start of transmission of a document placed on a document scanning surface, and a transmission key in response to an operation of the transmission key. , a reading means that moves in the main scanning direction to read the document; a scanner sensor that is set at a position indicating the last line of the document and generates an end signal when the reading means reaches the position;
holding means for holding the telephone circuit in response to a termination signal from the scanner sensor; measuring means for measuring the holding state of the telephone line by the holding means for a certain period of time; If the send key is operated during the hold state, the hold of the telephone line by the hold means is released and transmission of the original is started, but the send key is not operated,
When a certain period of time is measured by the measuring means,
The present invention is characterized by comprising a disconnecting means for stopping the holding of the telephone line by the holding means and disconnecting the line.

<Function> In the document fixed type facsimile device according to the present invention, when a document is placed on the document scanning surface and the send key is operated, the reading means moves in the main scanning direction and scans the document, as in a normal facsimile device. The document is read and the read data is sent via telephone line. The operation is repeated until the last line of the document, and when the reading means reaches the position of the scanner sensor previously set at a position indicating the last line, the scanner sensor generates an end signal, and the holding means outputs the end signal. Puts the telephone line on hold upon receiving a termination signal.
If a document is placed on the document scanning surface and the send key is operated within a certain period of this pending state, transmission will be started again, but if the send key is not operated and a certain period of time has elapsed, , which stops the telephone line from being put on hold and disconnects the line.

<Example> Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a schematic structure of the facsimile apparatus of the present invention. Reference numeral 30 denotes a document scanning surface, which is made of a transparent plate such as glass. Reference numeral 31 denotes a document holding plate, and the surface facing the document scanning surface is a white surface. A scanner 32 that integrates a light source and a CCD reading element is arranged below the scanning surface, and is arranged in the main scanning direction, for example.
It has a reading capacity of one line of an A4 size document. The scanner 32 is movable in the longitudinal direction (sub-scanning direction) of an A4-sized document by a transport mechanism such as a pulley 34 and a belt 33 connected to a motor. A scanner sensor 35 is provided at the position of the last line of the document, and when the scanner 32 reaches this position, it detects the last line and generates an end signal.

Note that the detection of the final line can also be carried out by setting in advance how many lines to read, and when the set number of lines is reached, it is determined that the line is the final line and a termination signal is generated.

FIG. 2 is a basic block diagram of the facsimile apparatus of the present invention.

In the drawings, 1 is an image reading unit, 2 is an image recording unit, 3 is an A/D converter, and 4 is an encoder/digital converter.
A decoding unit, 5 a buffer memory, 6 a transmission control unit, 7 a modem, 8 a line control unit, 9 a display unit, 10 a main control unit,
11 is a telephone; 12 is an operation unit equipped with a transmission key 20 and a notification lamp 21; 13 is a ROM;
4 is RAM.

In FIG. 2, at the time of transmission, an image signal obtained by an image reading unit 1 is digitized by an A/D converter 3, encoded by an encoding unit 4, and sequentially stored in a buffer memory 5. The encoded image data stored in the buffer memory 5 is transmitted to the line via a transmission control unit 6, a modem 7, and a line control unit 8.

When all the image data lines obtained by the image reading unit have been sent out, the next original is replaced and the operation unit 12 resumes transmission. When replacing the original, the main control unit 10 executes the control operation shown in the flowchart of FIG.

That is, after the main control unit 10 detects the last line of the transmitted original, it sends out pseudo signals for a predetermined number of lines in response to the last line detection signal in order to hold the line while the original is replaced. ing. The predetermined number of lines is preset, for example, to a maximum of seven lines.

Next, the operation of the facsimile apparatus of the present invention will be explained with reference to the flowchart of FIG.

The process starts from step 1, enters the transmission operation by inputting the transmission key 20, and sends out one line of read data obtained from the image reading unit 1 in steps . In step 1, it is determined whether the line data obtained from the image reading unit 1 is the final line data by looking at the output of the scanner sensor 35 shown in FIG.
Sends data for each line. Scanner sensor 35
If the output is the final line, proceed to step.
In the step, a pseudo signal is sent by the fill bit to hold the line, and during this time, the step determines whether there is another document. The determination in this step is made based on the presence or absence of a signal from the transmission key 20 for transmitting the next document, which is input to the main control unit 10 by the operation unit 12. If it is determined in step that no transmission key has been input, the process advances to step and it is determined whether the number of lines preset in the counter has been reached. As mentioned above, the maximum number of lines preset in this counter is 7 lines, so "7" is preset in the counter C, and by checking whether the counter C value becomes 0 or not. This is to determine whether the set number of lines has been reached.

If the set number of lines has not been reached in the step, the counter C is counted down by 1 in the step, and the process proceeds to the step. The step sends an EOL (end-of-line code) and returns to the step. Further, based on the detection of the last line, the display unit 9 prompts the operator to replace the document. A pseudo signal is sent again in step , and if there is no input of the transmit key after that, pseudo signals are sent sequentially in the routine of steps , , , , , and when the set number of lines is reached in step (C = 0), proceed to step
Transmission ends by sending RTC (control return signal).

On the other hand, if it is determined in the step that the transmission key has been input before reaching the setting line, the process advances to the step, sends out the RTC, enters the transmission flow for the next document, and repeats the above operations thereafter.

In addition, according to the recommendations of CCITT, steps...
The total time shall be within 5 seconds. The number 7 on the counter is the corresponding time.

Although a line is set in the counter, the number of lines preset in the counter can be varied by adjusting the number of fill bits in each step.

Further, although the above embodiment uses A4 size, it is not limited to this size.

<Effects> As described above, according to the present invention, in a facsimile device with a simple and inexpensive original fixed type, the line is automatically switched off for the time required to exchange the original without operating a specific switch. Not only is it possible to put the line on hold, but if the send key is not operated within a certain period of time while the line is on hold, it will automatically stop the line from being held and disconnect the line. Therefore, it is possible to improve the operability of the document-fixed type facsimile device, and to provide a facsimile device that can be used for a long time.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a schematic structure of an embodiment of the present invention, FIG. 2 is a basic block diagram of the facsimile device, and FIG. 3 is a flowchart showing the operation of the facsimile device. 1: Image reading unit, 9: Display unit, 1
2: Operation unit, 20: Transmission key, 21: Notification lamp, 35: Scanner sensor.

Claims (1)

[Scope of Claims] 1. A facsimile device with a fixed document type, comprising: a transmission key for instructing the start of transmission of a document placed on a document scanning surface; and a button for reading the document in response to an operation of the transmission key. a reading means that moves in the main scanning direction; a scanner sensor that is set at a position that indicates the last line of the document and generates an end signal when the reading means reaches the position; and an end signal of the scanner sensor. holding means for putting the telephone line on hold in response to a request, a measuring means for measuring the holding state of the telephone line by the holding means for a certain period of time, and a holding means for measuring the holding state of the telephone line by the holding means for a certain period of time, and a holding means for holding the telephone line for a certain period as measured by the measuring means. When is operated, the telephone line is released from hold by the hold means and transmission of the document is started. However, when the send key is not operated and a certain period of time has been measured by the measuring means, the hold is released. A facsimile device comprising: disconnecting means for stopping a telephone line from being put on hold by the means and disconnecting the line;