JPS6015183B2 - facsimile receiving device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to automatic recording paper cutting in a facsimile receiving device, and is designed to efficiently cut the recording paper when an alarm is detected and to prevent the recording paper from jamming in the ejection system. This is what I did.

FIG. 1 is a simple configuration diagram of a conventionally used device. In the figure, the same reference numerals indicate the same components or those that perform the same operations.

In FIG. 1, 1 is a roll of recording paper, 2 is a paper feed motor, 3 is a pulley of the motor 3, 4 is a clutch, and 5 is a pulley for the motor 3.
is a paper feeding roller, which is driven by the motor 3.

6 is a roller to which the recording paper 1 is fed between the pressure roller 5, 7 is a pulse motor, 8 is a pulley of the pulse motor 7, 9
10 is a power transmission belt, and 10 is an roller driven by the pulse motor 7, which is pressed by a pressure roller 6.

11 is a cutting machine for cutting the recording paper 1; 12 is a detector for the recording paper 1; 13 is a developer; 14 is a control circuit; 15 is a recording device; 16 is an alarm detector; and 17 is an input terminal. now,
The leading edge of recording paper 1 is set so as to be pressed by rollers 5 and 6, and the image information transfer start symbol is set at input terminal 1.
7, the motor 2 and pulse motor 7 rotate, the clutch 4 is engaged, and the rollers 5, 10
If it is assumed that the recording paper 1 is rotating at the same speed in the direction of the arrow (hereinafter, rotation of the motor 7 under this condition will be referred to as a rapid feed speed), the recording paper 1 will be fed toward the detector 12.

When the detector 12 detects the leading edge of the recording paper 1, a signal to that effect is supplied to the control circuit 14, and the control circuit 14 gives a clutch disengagement command to the clutch 4 and a stop command to the pulse motor 7, so that the recording paper 1 At the same time, the feeding of the cutter 1 is stopped.
1' is given a cutting command to cut the recording paper 1 (hereinafter the cut recording paper will be referred to as la).

Therefore, the length of the recording paper la is determined by L. Then, when the image signal is received, the image signal start signal is input to input terminal 1.
7, the control circuit 14, and the control circuit 14.
gives a command to the pulse motor 7 to rotate at the recording speed, and also gives a recording command to the recording device 15 to record the received image signal on the recording paper la.

It is designed so that the end signal of the image signal is detected at the input terminal 17 until the end of the recording paper la is detected by the detector 12 as recording progresses one after another. On the other hand, in the receiver, when an alarm signal is generated in the alarm detector 16 while receiving the image signal, a signal to that effect is sent to the transmitter in reverse,
The transmitter receives this signal and again instructs the receiver to stop recording the image signal being transferred.Also, even if the transmitter detects an alarm while transferring the image signal, the same as above. An alert will appear to stop recording the image signal.
Sends a system signal.

At this time, if only one document is being transferred (hereinafter referred to as single feed), an end signal is sent, and if multiple documents are being transferred consecutively (hereinafter referred to as delivery), a page end signal is sent. Send out. That is, in the receiver, the alarm detection circuit 16 detects an alarm signal, which is a signal that occurs when the signal cannot be deciphered due to line noise etc. and communication cannot be continued any longer while receiving the image signal, and the end signal is detected. When connected to the terminal 17, the control circuit 14 gives a command to rotate the pulse motor 7 at a long feed speed and a command to stop recording to the recording device 15 to stop recording, and transfer the recording paper la to the developing machine 1.
Develop it in step 3, then eject it, open the line, and wait for the next instruction.

Also, while receiving the image signal, the alarm signal is detected by the alarm detection circuit 16, and the page end signal is detected at the input terminal 1.
7, recording is stopped in the same manner as described above, the recording paper la is developed by the developing device 13, and then discharged, while the control circuit 1
4 gives a closing command to the clutch 4, feeds the next recording sheet la, disconnects it in the same manner as above, and waits for the next image signal.

However, in the above-mentioned apparatus, the recording paper 1 is cut to a constant length L regardless of the document size at the transmitter, and is predetermined in advance to a document size that is considered to be frequently used.
Therefore, for documents shorter than this, the margins are large and the ejection time is also required, which reduces the efficiency of use especially at the time of an alarm and increases the waste of recording paper. Additionally, during transportation, it takes time to stop recording, eject the recording, and detect the leading edge of the next recording paper after receiving the alarm signal and page end signal, as well as cutting time, which delays the start of the next recording. The drawback was that it took a long time to hold the line. This invention was made to solve the above-mentioned drawbacks, and when an alarm signal and an end signal, or an alarm signal and a page end signal are received, the length of the recording paper being recorded is detected, and the length of the recording paper that is being recorded is always detected. To provide a facsimile receiver which cuts a minimum amount of recording paper, reduces waste of recording paper, and can start recording immediately when the next image signal starts.

FIG. 2 is a configuration diagram showing an embodiment of the present invention. In the figure, the same reference numerals as in FIG. Describe the configuration and operation.

In FIG. 2, 17' is an input terminal, 19 is a drive circuit for the pulse motor 7, 20 is a counter circuit, and 21 is a determination circuit for determining the length of the recording paper 1 using the counter circuit 19. Now, the leading edge of the recording paper 1 is set in the cutting machine 11 by some method and is waiting for the image information to be transferred, and when an image signal start signal is supplied to the input terminal 17 following the transfer start signal. The control circuit 14 is the recording device 15
and the pulse motor 7 to the drive circuit 19.
A command is given to rotate the recording paper 1 at a recording speed, and the recording paper 1 is sequentially recorded while being fed by the rollers 6 and 10.

By the way, the input terminal 18 of the drive circuit 19 contains a synchronization signal for the purpose of synchronizing document reading on the transmitter side and recording on the receiver side, and the drive circuit 19 records one line of image information. A pulse voltage is supplied to the pulse motor 7 each time the recording paper 1 is advanced by one line.

Therefore, the number of pulses and the number of lines are equal, and if these pulses are counted by the counter 9 and this number is N, the line interval is P, and the length of the recording paper 1 from the recording start point is L, then As can be seen from FIG. 3, L=N・P.

Therefore, by counting the number of pulses, the length L of the recording paper 1 from the recording start point can be obtained. The determination circuit 21 determines this length L. As described above, recording progresses sequentially, and the determination circuit 21 determines the length L=1, (1 is the recording device 15
and the distance between the cutting machine 11: the first predetermined distance),
The determination circuit 21 supplies a control signal to that effect to the control circuit 14, the control circuit 14 gives a recording stop command to the recording device 15, gives a stop command of the pulse motor 7 to the drive circuit 19,
While recording is stopped, a cutting command is given to the cutting machine 11 to cut the margin between the leading edge of the recording paper 1 and the recording start point and lower it down. When cutting is completed, a signal to that effect is sent to cutting machine 1.
1 as a control signal, the control circuit 14 gives a recording start command to the recording device 15 and a command to the drive circuit 18 to rotate the pulse motor 7 at the recording speed, and sequentially advances the recording again. By the way, in order to prevent the recording paper 1 from falling off when it passes through the rollers 6, the distance 12 (second
(predetermined distance), it is necessary to increase the length of the recording paper 1 at the time of cutting.

Hereinafter, the operation of cutting the recording paper 1 so as to satisfy this condition will be explained in order according to the length L from the recording start point shown in FIG. Now, when the end signal is supplied to the input terminal 17, the determination circuit 21 determines the length L from the recording start point.
When detecting LZ12-1, that is, 1. When adding L11, Z12-1・11,
When the cutting length of L+1 becomes Z12 and the recording progresses to the point where the recording paper does not fall off,
The control circuit 14 gives a recording stop command to the recording device 15 to stop recording, and at the same time causes the drive circuit 19 to control the pulse motor 7.
At the same time, the counter 19 is instantly reset, and the pulse motor 7 is rotated again.
This counter 19 counts the pulses during mid-feed, and the pulse motor 7 is stopped when the rapid feed advances by 1.

Then, the recording paper 1 is cut and fed into the developing machine 13. On the other hand, when the end signal is supplied to the input terminal 17, if the determination circuit 21 detects that the length L from the recording start point is L<12, the recording is stopped in the same way as above. -1
, fast forward until . At this time, the counter circuit 20 is not reset and continues to count pulses during rapid feed. This is calculated by adding 1 later to the recording paper length L11, SI2
-1, SI2-1, 11, Mii2, and if it is 12 or less, the recording paper 1 is
This is to increase the cutting length. Then, L=12-1
, the counter circuit 20 is instantaneously reset and the pulses at the time of feeding are counted again, and L=1, that is, the length 1. After adding up the total length to 12, cut it in the same way as above.
Note that at this time, since the synchronization signal of the input terminal 18 is not included since the information was no longer transmitted from the transmitter, the drive circuit 19 operates the pulse motor 7 by visual stimulation and so as to satisfy the above-mentioned line gap. It's driving. That is,
If the end signal is received while recording has been made up to a length L from the recording start point that satisfies the condition L>12-1, add 1 to L to determine the length longer than 12. On the other hand, if the recorded length L is still shorter than 12 even after adding 1, then that amount is included in the measurement of the pulse of length L in the fast feed state and added, and then, Reset, 1,
Add the lengths of , set the cutting length of recording paper 1 to 12, and cut.

The above has explained single shipping, but the case of transportation will be explained below. The recording of the first sheet proceeds sequentially in the same manner as described above, and then a page end signal is supplied to the input terminal 17, which is a signal indicating that the second sheet is still available although the first sheet has been printed.

This is a signal obtained by providing some means in the design of the transmitter and receiver, and it is assumed that they are currently designed that way. Page end signal is input terminal 1
7, and if the determination circuit 21 detects the length LZ12 from the recording start point, the control circuit 14 instructs the recording device 15 to stop recording, and the drive circuit 19 to stop the pulse motor 7. A command is given to reset the counter circuit 20, the next image signal start signal is sent out, and when the second image signal start signal is supplied to the input terminal 16, the control is started in the same way as when recording the first image. Recording device 1 by circuit 14
5 is given a recording start command, and the drive circuit 18 is given a command to rotate the pulse motor 7 at the recording speed.
The Kawanta that had been reset above also starts counting. Therefore, the recording of the second sheet starts from the line next to the last line of the first sheet without fast-forwarding recording paper 1 as in the case of single feeding, so the recording of the second sheet There is no blank space between the eye and the recording start point. After this, when the recording of the second sheet advances by 1, a signal is issued from the determination circuit 20 as in the case of the first sheet, and the recording operation is temporarily interrupted, and immediately before the recording start point of the second sheet (1, The recording paper 1 is cut between the last line of the first sheet and the recording start point of the second sheet. In this way, the cut recording paper 1 is sent to the developing machine 13. By the way, if the determination circuit 21 detects L<12 when the page end signal of the first page is supplied to the input terminal 17, the recording is performed immediately after the last line of the first page, as described above. If the paper 1 is cut, the cut length will be less than 12, and the cut recording paper 1 will fall off when it passes between the rollers 6. Therefore, in this case, after stopping recording, the recording paper 1 is fast-forwarded until L=12-1, and L=1
2-1, it waits for the second image signal start signal. Then, when the second image signal start signal is sent,
Recording is started from the standby position in the same way as when L≧12-1, and this recording is . At this point, the recording paper 1 is cut and fed into the developing machine 13. In this way, the same process as above is repeated for the third and subsequent recordings, and the transportation process is performed.

When the processing of the last sheet to be transported is completed, a completion signal is supplied from the transmitter to the input terminal 17, so that the processing is completed in the same manner as described for single transport.

Next, a case where an alarm signal is generated by the alarm detection circuit 16 will be explained.

Here, the length of the recording paper 1 to be cut needs to be 12 or more so that the recording paper 1 does not fall off between the rolls 6, as mentioned above. Now, when an alarm signal and an end signal are received on the last page of single feed or transportation, if the length from the recording start point is 0<LSI, L≦1, and the line is immediately cut.

At this time, the recorded portion is cut off as a blank portion in the next transmission. Also, the length is 1. If <L<12, the margin part has already been cut to a length of 1,
It is run by long distance until the length L:12, and is cut to a length that will not fall off with the roll 6, and if the length is LZ12, it is immediately cut. On the other hand, when an alarm signal is generated and a page end signal and an alarm signal are input to the control circuit 14 from the transmitter, the length from the recording start point is 0.
If <LSI, disconnect immediately. In this state, it waits until the next image signal is received, and when the next image signal is received,
Cutting is performed when the recording paper on the J border can be secured. On the other hand, the length L at the time of alarm is 1, SLS12-1,
At this time, first, recording is stopped, and the recording paper 1 is run until the length L=12-1, and is placed on standby.

If the image signal is not received after waiting for a certain period of time due to a faulty line or the like, the control circuit 14 gives a long-feed command to the pulse motor 7 to run it by a length of 1, and then cuts the recording paper 1 with L=12. . Further, if the length is L and 12, the next image signal is waited for, and the cutting is performed in the same manner as above while recording the next image signal. Therefore, the consumption of recording paper when an alarm occurs is minimized, and preparations for receiving the next image signal can be made smoothly and in a short time.

Although one embodiment of the present invention has been described above, the pulses of the pulse motor are counted in order to detect the length of the recording paper, but the invention is not limited to this. It may also be combined with a signal.

Further, a plurality of pulses may be used to advance the recording paper through IH. Also, the length of the recording paper at the time of alarm reception is 0<
If it is an LSI, all of them are cut at L=1, and 1,S
LSI2-1, or 1. If <L>12-1, all may be disconnected or on standby with L=12.

Further, when cutting the recording paper, the recording or the running of the recording paper is temporarily stopped, but this does not apply if the cutting speed of the cutting machine is high.

As described above, according to the present invention, the consumption of recording paper is kept to a minimum even when an alarm signal occurs, and preparations for recording the next image signal can be quickly made, so that recording paper can be used effectively and line usage fees can be reduced. Since this makes it easier to transfer image signals, the cost of transferring image signals becomes cheaper.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an example of a conventional facsimile receiving apparatus, FIG. 2 is a block diagram showing an embodiment of the facsimile receiving apparatus of the present invention, and FIG. 3 is an explanatory diagram of the present invention. 1...recording paper, 6...roller, 11..."
Cutting machine, 12...Detector, 13...Developer, 14...Control circuit, 15...Recording device, 16... Alarm detection circuit, 20...
...Counter circuit, 21 is a judgment circuit. Note that the same reference numerals in the figures indicate the same or corresponding parts. 1st
Figure 2 Figure 3

Claims (1)

[Claims] 1. A recording paper that moves in the sub-scanning direction between rollers in response to the driving force of a pulse motor, a recording device disposed above the recording paper, and a sub-scanning paper that is connected to the recording device above the recording paper. a cutting machine that is arranged a first predetermined distance apart in the scanning direction and cuts the recording paper; and a pair of cutting machines that are arranged a second predetermined distance apart from each other and into which the cut recording paper is introduced into the cutting machine. A roller, a developing device placed between the rollers, a counter circuit that counts pulses from the pulse motor or synchronization signal pulses in the sub-scanning direction included in the transmission signal, and a recording start based on the count value of this counter circuit. A judgment circuit that detects the recording distance from the point and the paper length of the recording paper, an alarm circuit that detects the receiver's unreceivable state and sends out an alarm signal to stop reception, and a Depending on the signal, the above pulse motor,
The judgment circuit controls the operation of the recording device and the cutting machine, and when receiving an alarm signal from the alarm circuit,
If it is determined that the recorded distance from the recording start point is less than or equal to the first predetermined distance, the cutting machine is activated immediately; if it is determined that the recorded distance is greater than that, the recorded distance and the first predetermined distance are A facsimile receiving device comprising: a control circuit that operates a cutting machine when the sum of the above and the predetermined distance reaches a value corresponding to the second predetermined distance or more.