JPS5938786B2 - facsimile receiving device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a facsimile receiving apparatus that records received images one after another on a continuously supplied roll of recording paper.

Generally speaking, recent facsimile machines often use roll-shaped recording paper in order to reduce recording paper costs and save labor in operation.

In addition to the above-mentioned advantages of using roll-shaped recording paper, there is no restriction on the length of the transmitted document, or if you want automatic reception, you can avoid complex mechanisms such as automatic recording paper loading. It has the advantage that it is not required. From this point of view, roll-shaped recording paper is often used, and in this case, the recorded images that are received and reproduced are a series of continuous images in the order in which they were received, but some facsimile machines have an automatic cutter. has a built-in function that allows you to record a certain length (
For example, the document is fritted to A4 size) or cut according to the length of the document to be sent.

However, although this method does not require the labor of manually cutting a series of continuous recorded images one by one, it requires a cutting mechanism, making the device complex and large, and However, the disadvantage is that the equipment cost is high. On the other hand, in conventional facsimile machines that do not have a cutting mechanism, as mentioned above, a series of consecutive recorded images are manually cut one by one. There is a drawback that the separation position, that is, the boundary position between the recorded image corresponding to one original document and the recorded image corresponding to the next original document is not clear.

The reason for this is that when cutting and separating each received image, it is necessary to determine the cutting and separation positions by interpreting its contents. Therefore, there is a risk of misunderstanding the position of cutting and separation, and the operator must decipher the content of the received image each time, which is undeniably a big disadvantage from the point of view of labor saving in operation. The present invention has been made to solve the above-mentioned drawbacks, and is designed to record a dividing line between each recorded image.The details thereof will be explained below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a facsimile receiving device according to the present invention, in which 1 is a demodulation circuit that demodulates and reproduces an image signal from a received signal, 2 is a pattern generation circuit that generates a dividing line pattern signal, and 3 is a first switching gate that switches between the demodulated image signal and the pattern signal to derive either one of them;
Reference numeral 4 denotes a second switching gate for alternately introducing both of the above-mentioned signals into either one of two memories to be described later, and 5 and 6 each a first switch gate consisting of a shift register or the like having a capacity corresponding to the number of pixels φ in one line. a second memory, 7 a third switching gate for switching and inputting the output of one of the first and second memories 5 and 6 to the recording circuit; 8 a recording circuit; 9 the first second memory;
a control circuit that controls the second and third switching gates 3, 4, and 7 and the recording circuit 8 and generates a sub-scanning step pulse;
Reference numeral 10 represents a drive circuit for a pulse motor that moves the document one line at a time in response to the step pulse, and reference numeral 1 represents a circuit for generating a phase signal for facsimile synchronization.

The operation of the apparatus of the present invention having such a configuration will be explained with reference to the time chart shown in FIG. 2, but before that, the general operation of the facsimile receiving apparatus will be described. That is,
When facsimile communication is started, control signals necessary for controlling the facsimile transmitter and receiver are exchanged between the transmitter and receiver prior to transmitting the facsimile document.

Next, a phase signal is transmitted from the transmitter side to achieve phase matching between the transmitter and the receiver, and phase matching between the transmitter and the receiver is achieved. When the phase matching operation is completed on the receiving device side, the receiving device sends a control signal indicating this to the transmitting device, and enters into a system for receiving and recording facsimile originals, that is, image signals. Therefore,
First, the operation of the apparatus shown in FIG. 1 up to just before starting the image signal recording operation will be described.

In the state before the image signal is received and recorded, the first switching gate 3 is switched to the pattern generation circuit 2 side under the control of the control circuit 9, and therefore the second switching gate 4 receives the signal from the circuit 2. Separator line pattern signal (Fig. 2 e (17)
S) is input.

At this time, this pattern signal is a pulse train signal of an appropriate frequency so that, for example, a dividing line is recorded as a broken line. The control circuit 9 operates the second switching gate 4 based on the phase signal (FIG. 2a) generated by the phase signal generation circuit 11.
and a gate signal for controlling the third switching gate 7 (second
Figures C, d, and f) are created and outputted to each of the above switching gates.

The second switching gate 4 inputs the output of the first switching gate 3, that is, the dividing line pattern signal, to the first memory 5 when the gate signal of FIG. 2c is "high", and the gate signal of FIG. 2d is "high". ”, the pattern signal is input to the second memory 6. The first and second memories 5 and 6 retain their stored contents when the gate signals C and d are respectively "1". The third switching gate 7
In response to the gate signal shown in FIG. In this way, the dividing line pattern signals (e (7) in FIG. )S) are sequentially introduced into the recording circuit 8 via the third switching gate 7.

However, the pattern signal input to the recording buffer of the recording circuit 8 is not used until the phase matching operation is completed and the transmission of the control signal to notify the transmitting device of this fact is completed, that is, until the image signal arrives. In this case, the recording command signal (FIG. 2b) from the control circuit 9 is not generated, and therefore no separation line is recorded. Next, the phase matching operation is completed and at the time in Figure 2 (TO
), the control circuit 9 outputs a step pulse (not shown) to the pulse motor drive circuit 10 in order to step the sub-scanning pulse motor (not shown) by several lines. do.

Subsequently, the control circuit 9 is the above-mentioned T. At the first rise time (t1) of the phase signal (FIG. 2a) that arrives later, the recording command signal shown in FIG. 5 or the contents of the second memory 6 are recorded on recording paper. That is, in the operation model of FIG. 2, the gate signal power of FIG. 2c is low at the time (t1) when the recording command signal (FIG. 2b) is output.
At this point in time (t1), the first memory 5 stores and holds one line of the dividing line pattern signal introduced in the immediately preceding image signal period, and therefore, the pattern signal from the first memory 5 is When the recording of the delimiter line pattern signal, which is recorded as broken lines (perforations) 13 on the roll recording paper 12 as shown in FIG. b) said t1
Since the switch is made to the demodulation circuit 1 side at the time of t1, the separation line pattern signal is not introduced into the first and second memories 5 and 6 after this t1, and instead, the demodulation circuit 1 is introduced into both memories.
The image signals (2, 2 in FIG. 2e) are sequentially and alternately introduced one line at a time. At this time, since the introduction of the image signal into the memory starts from the second memory 6 in the case of FIG. 2, the derivation of the pattern signal during recording from the first memory 5 described above is not hindered. When the recording of the dividing line is completed in this way, the control circuit 9 sends a signal to the pulse motor 1 drive circuit 10 during the first position signal period that arrives after the recording of the dividing line, that is, the period T2 to T3 in FIG. By outputting several stepping pulses (not shown) again, the sub-scanning pulse motor described above is stepped by several lines.

Here, the reason why the sub-scanning pulse motor is advanced by several lines (for example, an appropriate number of lines equivalent to 1 to 2 mm) before and after recording the dividing line is to move the sub-scanning pulse motor before and after recording the dividing line, that is, to record one document. This is to ensure that the end of the recorded image corresponding to the next original and the beginning of the recorded image corresponding to the next original can be clearly distinguished.

Next, an explanation will be given of the operation when recording an image signal after recording a dividing line.

In the period from T3 to T4 in FIG.
Since the gate signal in figure f is 0 low 1, T, ~
The image signal for the first line (1 in FIG. 2e) introduced into the second memory 6 during the period T3, that is, during recording of the separation line, is input to the recording circuit 8 via the third switching gate 7.

Subsequently, the gate signal FO) is set to high so that the T3
The image signal for the next one line (2 in e of FIG. 2) introduced into the first memory 5 during the ~T4 period is input into the recording circuit 8 during the next period, and is similarly input into the first and second memories. Image signals from 5 and 6 are alternately input to a recording circuit 8. At the same time, one stepping pulse is output from the control circuit 9 to the pulse motor and drive circuit 10 for each phase signal after T3 in FIG. 2a, and the recording command signal in FIG. Since the signal continues to be "high" after t1, the image signal introduced into the recording circuit 8 is recorded as shown in 14 in FIG. The reason for recording the line immediately before recording the image signal is that if it had been done before, for example, when the facsimile line between the transmitter and the receiver was connected, it would be inconvenient for the transmission and reception of control signals between the transmitter and the receiver. This is because even if the phase matching occurs or phase matching cannot be achieved, the delimiter line will be recorded, and the recorded delimiter line will therefore be meaningless.

Furthermore, in the above embodiment, the dividing line is recorded at the beginning of the recorded image, but it is also possible to record the dividing line at the end of the recorded image, or both. Needless to say, it is effective.

As described in detail above, the facsimile receiving device of the present invention records a dividing line for each recorded image corresponding to one sheet of original when recording image signals on a roll-shaped recording paper that is continuously supplied. This allows the continuous recorded images to be cut and separated one by one along the separation line, which greatly reduces processing time compared to the case where the content of the recorded images is deciphered. There is no possibility of making a mistake in the cutting position.

Furthermore, there is no need to specifically provide an automatic cutter mechanism within the device, which contributes to lowering the cost of the device.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a schematic configuration of an embodiment of the facsimile receiving device of the present invention, FIG. 2 is a time chart for explaining its operation, and FIG. FIG. 3 is a diagram for explaining a recording state. 1...Picture signal demodulation circuit, 2...Separator line pattern signal generation circuit, 3, 4, 7...Switching gate, 5, 6...Memory , 8... Recording circuit, 9... Control circuit, 10... Sub-scanning pulse motor, drive circuit, 11... Phase signal generation circuit, 12・・・・・・Rolled recording paper, line.

Claims (1)

[Claims] 1. In a plane scanning facsimile machine of the type that records image signals on a roll of recording paper that is continuously supplied, a separation line pattern signal generating means is provided, and a pattern derived from the means is provided. By switching the signal with the received image signal and applying it to the recording means of the facsimile, the switching means controls the switching timing of the switching means, so that the image signal corresponding to one document is changed to the pattern signal before or after recording. A facsimile receiving device characterized in that a corresponding dividing line is recorded on the recording paper. 2. The means for controlling the switching timing once applies the pattern signal to the recording means for a certain period of time from the time when the image signal receivable state is detected, and thereafter continuously applies the received image signal to the recording means. 2. The facsimile receiving apparatus according to claim 1, wherein said switching means is controlled so that said dividing line is recorded at a starting edge of a recording image corresponding to one sheet of original.