JPH0434859B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile device that transmits an image to a facsimile device that uses cut paper as receiving paper.

[Prior art]

Many facsimile machines have conventionally used roll paper as receiving paper. Although such a facsimile device is less prone to jamming of received paper, it requires a mechanism for cutting the received paper. Furthermore, even if the transmitted originals are of the same size, the sizes of the cut received sheets are slightly different, making it difficult to file them neatly. Furthermore, it is not possible to freely exchange and use receiving sheets of different sizes, background colors, etc. For this reason, facsimile apparatuses that record on received paper (cut paper) that has been cut to a predetermined size in advance are attracting attention.

By the way, in facsimile machines, slips may occur temporarily in the conveyance mechanism for the original to be sent. In this case, even while the sub-scanning of the document is virtually stopped, the image sensor continues to read the image. As a result, image information with a longer image size, such as 21 cm, is sent to the facsimile device on the receiving side from a transmitted original document with a length of 20 cm in the feeding direction, for example. In such a case, in a facsimile machine that uses roll paper as receiving paper, recording is performed using a roll paper that is as long as the length of the roll paper. On the other hand, in a facsimile machine that uses cut paper, the length of the received paper in the feeding direction is constant. Therefore, if there is an unsent part of the transmitted document at the stage of recording the trailing edge of the cut paper,
At this point, the facsimile machine on the transmitting side was supposed to send a multi-page recording signal to the receiving side. In this specification, the multi-page recording signal refers to a signal that instructs the receiving side facsimile machine to feed out the next cut sheet in order to continue recording the remaining portion of the same transmitted document. If the receiving facsimile machine does not have a large memory capacity, the sending facsimile machine will stop reading the transmitted document until the next cut sheet reaches the receiving side's recording section. .

However, if a slight slip occurs in the transport mechanism for the transmitted document, even if the next cut sheet is prepared for recording, no image information is often recorded on it. This is because image information often does not exist at the trailing edge of the transmitted document, and as a result, the received paper is wasted.

[Purpose of the invention]

In view of these circumstances, the present invention has been developed so that even if there is a small amount of untransmitted part exceeding the recorded amount at or near the rear end of the cut paper on the receiving side due to occurrence of slips, etc., the facsimile machine on the receiving side can To provide a facsimile device which can prevent a paper feed section from sending out the next cut sheet and prevent waste of received sheets of a facsimile device on the receiving side.

[Structure of the invention]

The facsimile device of the present invention includes a transmitting means that reads a transmitted document and transmits the image information to a receiving facsimile device, and a transmitter that reads a transmitted document and transmits the image information to a receiving facsimile device. Transmission amount detection means for detecting a predetermined transmission amount corresponding to the recording amount up to or near the rear end;
Remaining amount detecting means detects whether the remaining amount of transmitted documents is less than a predetermined value with respect to the amount of transmission detected by the transmission amount detecting means; The document trailing end portion transmission stopping means is provided for stopping transmission even if there is an untransmitted portion corresponding to the remaining amount when it is detected that the amount is less than the remaining amount. In this facsimile device, the transmission amount detection means detects a predetermined transmission amount corresponding to the recording amount up to or near the trailing edge of the cut paper of the receiving facsimile device, and Whether the remaining amount of
It is detected by the remaining amount detection means. Then, when the remaining amount is less than a predetermined value, the transmission is aborted by the document rear end portion transmission stopping means even if there is an untransmitted portion corresponding to this remaining amount. As a result, if a slight slip of, for example, 1 to 2 cm occurs, it is possible to ignore this and finish recording at the trailing edge of the received paper. In addition, in a facsimile device that controls the feeding of received paper on the receiving side using a multi-page recording signal, only when the remaining amount detecting means detects that the remaining amount exceeds a predetermined value, the receiving side A signal generating means is provided for generating a multi-page recording signal that instructs the facsimile machine to feed out the next cut sheet for successively recording the same transmitted document, and multi-page recording is performed only when there is a considerable amount of untransmitted portion. A signal may also be generated.

〔Example〕

The present invention will be explained in detail with reference to Examples below.

FIG. 1 shows the main parts of the facsimile apparatus of this embodiment. Document storage section 10 of this device
The transmission documents 11 housed in the transmission document 11 are sent one by one to the reading section 13 by a pair of feed rollers 12 . Platen glass 14 of reading section 13
A presser roller 15 is arranged above to sub-scan the transmission original 11 while pressing it against the original. The transmission document 11 on the platen glass 14 is illuminated by a fluorescent lamp (not shown), and the reflected light is reflected by the lens 16.
The light then enters the image sensor 18 via the mirror 17 and is photoelectrically converted. An optical sensor 19 is arranged near the platen glass 14. This optical sensor 19 is called a scan position sensor, and has been conventionally used to determine the scanning start position of the transmission document 11. That is, when only one original to be transmitted 11 is fed out from the original storage unit 10, its leading edge is detected by the optical sensor 19, and then the original to be transmitted 11 is moved further by the distance d between the detection position of the optical sensor 19 and the reading position. Reading of the transmitted document starts at the time it is conveyed. The transmitted original 11 that has been read is stored in the original discharge tray 20.

FIG. 2 shows the main part of the electronic circuit of this facsimile machine. A CPU (central processing unit) 21 mounted on the facsimile machine is connected to each part through a bus 22 and processes data. Of these, the ROM 23 is a read-only memory in which programs for performing various controls of this facsimile device are written.
RAM 24 is a working random access memory that temporarily stores data. The received paper size register 25 is a register that stores the size of the cut paper sent from the facsimile machine on the receiving side. The motor drive control section 26 is a circuit section that outputs drive pulses to a step motor 27 that transports the transmission document. The control signal generating section 28 is a section that generates control signals such as multi-page recording signals. These control signals and digitized image signals are sent to a telephone line (not shown) via a demodulator 29.

The operation when the facsimile apparatus having such a configuration transmits image information to a receiving facsimile apparatus using cut paper will be described with reference to FIG.

When the communication of a series of control signals is completed and the send button (not shown) of the facsimile device of this embodiment is pressed, the CPU 21 controls the motor drive control unit 26 to drive the step motor 27 (step). . As a result, the transmission document 11 is started to be conveyed by the pair of feed rollers 12 . When the leading edge of the transmission document 11 reaches above the optical sensor 19,
The optical sensor 19 detects this (step;
YES). At the same time, the CPU 21 starts counting the number of drive pulses output from the motor drive control section 26 (step), and when the count value corresponding to the distance d shown in FIG. It is determined that the reading position has been reached (step; YES). Then, the reading section 13 is controlled to start the reading operation (step). From this point on, the CPU 21 newly starts counting the number of driving pulses of the step motor 27 (step), and the driving pulses reach a count value corresponding to the length of the cut paper in the feeding direction registered in the received paper size register 25. Count. At this point, it is determined that the image information corresponding to the size of the cut paper has been read (step; YES), and it is checked whether the optical sensor 19 is still detecting the transmission document 11 (step).

In the facsimile device of this example, the distance d is 20 mm.
is set to . The optical sensor 19 detects the transmitted original 11
If it is not detected (NO), the reading of the transmitted document 11 has already been completed, or the length of the untransmitted portion 11A in the feeding direction is 20 mm as shown in FIG.
This is the case within In this case, no slip occurs in the feed direction, or even if it does occur, it is only slight, and the image information of the untransmitted portion 11A hardly poses a problem. Therefore, in this case, a procedure for terminating the transmission of the transmission document 11 is performed (step).

On the other hand, as shown in Fig. 5, if the length of the untransmitted portion 11A in the feeding direction is longer than this (step; YES), a large slip may have occurred, and image information may be missing. This is likely to be a problem. Therefore, in this case, the CPU is the step motor 2.
7 is stopped (step), and the transmission document 1 is
The reading of 1 is also stopped (step). Then, the control signal generating section 28 is controlled to generate a multi-page recording signal (step), and the multi-page recording signal is transmitted through the demodulating section 29 to the facsimile machine on the receiving side.
When the facsimile machine on the receiving side receives this multi-page recording signal, it sends the next cut sheet to its recording section.

When the recording preparation is completed in this way (step; YES), the step motor 27 is driven and the reading operation is restarted (step, ). Counting of the number of drive pulses is then started again, and image reading corresponding to the second sheet of cut paper is performed (after step).

In the embodiments described above, an optical sensor called a scan position sensor is used to determine the length of the untransmitted portion of the transmitted document, but similar detection may be performed using other sensors. In addition, in this embodiment, whether or not to generate a multi-page recording signal is determined at the stage when the transmitted document has been conveyed by an amount corresponding to the length of the cut paper on the receiving side in the feeding direction, but at a stage before this,
It is also possible to measure the length of the untransmitted portion and base the decision on this.

〔Effect of the invention〕

As explained above, according to the present invention, even if there is a small amount of untransmitted portion exceeding the recorded amount at or near the rear end of the cut paper on the receiving side due to occurrence of a slip, etc., transmission is aborted. Therefore, with a simple circuit configuration, it is possible to prevent waste of paper received by the facsimile machine on the receiving side. In addition, we only cut out information at the edges of the document, which is often not really needed.
Missing image information is rarely a problem.

[Brief explanation of drawings]

The drawings are for explaining one embodiment of the present invention. Among them, Fig. 1 is a schematic configuration diagram of a facsimile device, Fig. 2 is a block diagram showing the main parts of an electronic circuit, and Fig. 3 is a diagram showing a transmission document. A flowchart for explaining the operation of the facsimile machine when the number of untransmitted parts is 1. Fig. 4 is an explanatory diagram showing the relationship between the transmitted document and the optical sensor when the unsent part is relatively small. FIG. 4 is an explanatory diagram showing the relationship between transmitted documents and optical sensors when there are relatively many documents; 11... Transmitted manuscript, 11A... Unsent part, 19...
Optical sensor, 21...CPU, 23...ROM, 24...
RAM, 25... Reception paper size register, 28... Control signal generation section.

Claims (1)

[Scope of Claims] 1. Transmitting means for reading a transmission document and transmitting its image information to a receiving facsimile device; When the receiving facsimile device uses cut paper as receiving paper, the cut paper A transmission amount detection means for detecting a predetermined transmission amount corresponding to the recording amount up to or near the trailing edge; a remaining amount detecting means for detecting whether the remaining amount is below a predetermined value; 1. A facsimile apparatus comprising: means for stopping transmission of a trailing edge portion of a document. 2. Only when the remaining amount detecting means detects that the remaining amount exceeds a predetermined value, instructs the receiving side facsimile device to feed the next cut sheet so as to continue recording the same transmitted document. 2. The facsimile apparatus according to claim 1, further comprising signal generating means for generating a multi-page recording signal.