JPS6013352B2 - facsimile receiving device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to automatic cutting of recording paper in a computer printer, and is designed to efficiently cut recording paper when an alarm is detected and to prevent the recording paper from clogging in the developing and ejecting systems. 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 moved by the motor 3.

6 is a roller that supplies the recording paper 1 between it and the pressure roller 5;
7 is a pulse motor, 8 is a pulley of the pulse motor 7, 9 is a power transmission belt, and 10 is a roller driven by the pulse motor outer sheath, 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 developing device; 14 is a control circuit; 15 is a recording device; and 16 is an input terminal.

Now, the leading edge of the recording paper 1 is set to be pressed by the rollers 5 and 6, and when the image information transfer start symbol is supplied to the input terminal 16, the motor 2 and the pulse motor 7
rotates, the clutch 4 is engaged, and the rollers 5,
Assuming that the recording paper 10 is rotating at the same speed in the direction of the arrow (hereinafter, the rotation of the motor 7 under this condition will be referred to as the long-feeding speed), the recording paper 1 is fed toward the detector 12 and is ejected.

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 I4 issues a clutch disengagement command to the clutch 4 and a stop command to the pulse motor 7, thereby stopping the recording paper 1. At the same time as stopping feeding, cutter 1
A cutting command is given to the recording paper 1 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.
6 and the control circuit 141 is supplied to the control circuit 1.
4 gives a command to the pulse motor 7 to rotate at a recording speed, and also gives a recording command to the recording device 15 to record the received image signal on the recording paper la.

The design is such that the end signal of the image signal is detected at the input terminal 16 until the end of the recording paper la is detected by the detector 12 as recording progresses sequentially, and the end signal is detected at the input terminal 1.
6, the control circuit 14 gives a command to the motor 7 to rotate at a long feed speed, gives a command to stop recording to the recording device 15, develops the recording paper la in the developing machine 13,
Eject it, open the line, and wait for the next instruction. The above explanation was about receiving and recording one original document, but next, a case where a plurality of original documents are successively received and recorded will be explained.

In the same way as above, recording progresses one by one and one document has been sent to the input terminal 16, but a signal indicating that the next document to be transmitted is prepared on the transmitting side, that is, a "page end signal" is not supplied. It is designed so that

This signal causes the control circuit 14 to cause the detector 12 to
At the same time as detecting the end of a, a long feed command is given to the pulse motor 7 and a recording stop command is given to the recording device 15 in the same way as above to discharge the developed image, while a closing command is given to the clutch 4 to feed the next recording paper 1. Cut in the same manner as above and complete recording of multiple sheets in sequence. However, in the above-mentioned apparatus, the cutting of the recording paper 1 is constant regardless of the document size at the transmitter, and is predetermined to a document size that is considered to be frequently used. Therefore, for documents shorter than that, the margins are large, the ejection time is correspondingly extra, and the line holding time becomes longer. Furthermore, for four long originals, the image information will be cut off midway. On the other hand, the leading edge of the recording paper 1 in the standby state is at the cutting machine 15, and it takes a considerable amount of time from the time the receiver learns that image information is to be transferred until it is cut. However, the disadvantage is that the holding time of the transmission line becomes correspondingly longer.

In addition, in the case of continuous feeding, the succeeding recording paper 1 is fed after the end of the immediately preceding recording paper 1 is detected, so as above, the time until the leading edge of the recording paper 1 is detected, and Disconnection time is added to all of the transportation of a plurality of sheets, the line holding time becomes longer, and the cost per sheet is high.

This invention was made in order to eliminate the above-mentioned drawbacks, and it is possible to use recording paper to record immediately whenever there is a transfer, and it can be cut to the length of the document, and furthermore, when it is sent over a long distance, there is a gap between pages. This allows subsequent image information to be recorded immediately as it comes, without creating unnecessary blank space at the seams.

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

In FIG. 2, 17 is an input terminal, 18 is a drive circuit for the pulse motor 7, 19 is a counter circuit, and 20' 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 is set in the cutting machine 11 by some method and is waiting for image information to be transferred, and when an image signal start signal is supplied to the input terminal 16 following the transfer start signal. The control circuit 14 gives a recording start command to the recording device 15, and also gives a command to the drive circuit 1M to rotate the pulse motor 7 at the recording speed, and sequentially performs recording while feeding the recording paper 1 through the rollers 6 and 10'.

By the way, the input terminal 17 of the drive circuit 18 includes a synchronization signal for the purpose of synchronizing the manuscript discussion on the transmitter side and the recording on the receiver side, and the drive circuit 18 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 we count these pulses with the counter circuit 19, let N be the number, P be the line interval, and L be the length of the recording paper 1 from the recording start point. , 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 20 determines this length L, and as described above, recording progresses sequentially, and the length L of the determination circuit 20 is 1, (1 is the length L of the recording device 15.
and the distance between the cutting machine 11: the first predetermined distance),
The determination circuit 20 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 18,
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 the cutting is completed, a control signal to that effect is supplied from the cutting machine 11, and the control circuit 14 outputs a control signal to the cutting device 15.
A command to start recording is given to the drive circuit 18, and a command to rotate the pulse motor 7 at the recording speed is given to the drive circuit 18 to sequentially advance the alignment recording. By the way, in order to prevent the recording paper 1 from falling off when it passes through the rollers 6, it is necessary to make the length of the recording paper 1 at the time of cutting longer than the distance 12 (second predetermined distance) between the rollers 6.

Hereinafter, the operation of cutting the recording paper 1 so as to satisfy this condition by the length L' from the recording start point will be explained. Now, when the end signal is supplied to the input terminal 16, when the determination circuit 20 detects "LZ12-1," regarding the length L from the recording start point, that is, when L is 1
, then L+1, Z12-1, 10i, 212
When the cutting length of L+1, becomes greater than 12 and the recording progresses to the point where the recording paper does not fall off, the control circuit 1
4 gives a recording stop command to the recording device 15 to stop recording, and at the same time gives a command to the drive circuit 18 to rotate the pulse motor 7 at a fast feed speed, and at the same time instantaneously resets the counter 19. The counter 19 counts 7 pulses during long 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 16, if the determination circuit 20 detects that the length L from the recording start point is L<12-1, recording is stopped and L=12-1. Fast forward to 1.

At this time, the counter 19 is not reset and continues to count pulses during long distance feeding. Later, by adding 1, the length of the recording paper becomes L11, SI21, 11, SI2, and the cutting length of L+1 becomes shorter than 12, and the recording paper reaches a state where it does not fall off. This is to increase the cutting length. Then, L=12-1. If L,=1. ,
That is, from the state of the recording paper 1, the unrecorded 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 17 is not included since the information was no longer transmitted from the transmitter, the drive circuit 18 automatically operates the pulse motor 7 so as to satisfy the above line gap. It's driving. In other words, if the end signal is input while recording has been made to a length L from the recording start point that satisfies the condition L>12-1, 1 is added to L to obtain a length of 12. When the recording length L is greater than 1, it is cut, and on the other hand, when the recording length L is still shorter than 12 even after adding 1, that amount is included in the measurement of the pulse of length L in the fast feed state and added, Then, reset and add the length of 1 to make the cutting length of recording paper 1 12.
and cut.

The above has explained the case of single sending, but the case of continuous sending 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 16, which is a signal indicating that the first sheet has been copied but there is still a second sheet.

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 16
and the determination circuit 20 determines the length L from the recording start point.
≧12-1, the control circuit 14 issues a recording stop command to the recording device 15 and a stop command to the pulse motor 7 to the drive circuit 18 to reset the counter 19, and the next image signal start signal is output. Wait until the record is sent out. Then, when the second image signal start signal is supplied to the input terminal 16, the control circuit 14 issues a recording start command to the recording device 16, and the drive circuit 18 receives a pulse. A command is given to rotate the motor 7 at the recording speed, and the counter set to IJ also starts counting. Therefore, the second record is
Since the recording paper 1 starts from the line next to the last line of the first sheet without fast forwarding like in the case of single feeding, there is a gap between the last line of the first sheet and the recording start point of the second sheet. There is no blank space. After this, the second record was 1. When the recording progresses by 1, the determination circuit 20 issues a signal in the same way as for the first sheet, and the recording operation is temporarily interrupted. Between the starting points), the recording paper i is placed and Katsu is able to do so.

In this way, the cut recording paper 1 is sent to the developing machine 13. By the way, if the determination circuit 20 detects L<12 when the page end signal for the first page is supplied to the input terminal 16, 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 paper 1 will fall off when it passes between the rollers 6. Therefore, in this case, after stopping recording, The recording paper 1 is fed until L=12-1, and when L=12-1, it waits for the image signal start signal for the second sheet.Then, the image signal start signal for the second sheet is waited for. When the recording paper 1 is fed, recording starts from the standby position in the same way as when L≧12-1, and when the recording progresses, 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 last sheet of transportation is completed, the transmitter
Since the end signal is supplied to the input terminal 16, the process is completed in the same manner as described for single feed.

In this way, since the cutting operation is performed only after receiving the end signal or page end signal, the cutting length is determined according to the length of each record, which increases the efficiency of using the recording paper 1. .

Also, during transportation, the recording paper 1 is cut when the next page has been recorded, and the 1st page of the recording paper 1 is cut. Since the minute is fast forwarded, there is no blank space for this fast forwarding. Therefore, the usage efficiency of the recording paper 1 is also high at this point.Furthermore, whether in single feeding or transportation, the transfer recording paper is always used for recording. Since the device 151 is arranged in this way, it can be recorded immediately if it is received.An embodiment of the present invention has been described above, but in order to detect the length of the recording paper, it is necessary to count the pulses of the pulse motor. However, regardless of this, a synchronization signal of the image signal, or an equivalent signal or a combination of a pulse and a synchronization signal may also be considered, and the pulse may be used to advance the recording paper by the IH distance. I can't help it.

Further, when cutting the cut recording paper, recording or running of the recording paper is stopped, but this does not apply if the cutting speed of the cutting machine 11 is high. As described above, according to the present invention, not only the usage efficiency of recording paper is improved, but also the waiting time is shortened in single sending and transportation, and the transmission time is correspondingly shortened, and the transfer cost is reduced.

[Brief explanation of the drawing]

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 according to the present invention, and FIG. 3 is an explanatory diagram of the same embodiment. 1... Recording paper, 2... Pulse motor, 6...
・Roller, 11... Cutting machine, 13...
Developing machine, 15...Recording device, 16...
Control device, 18... Drive circuit, 19... Counter, 20... 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 determination circuit that detects the recording distance from the point and the length of the recording paper, and a signal from this determination circuit, the pulse motor,
The operation of the recording device and the cutting machine is controlled so that the cutting machine is immediately operated when the recording distance from the recording start point reaches the first predetermined distance, and the recording distance is controlled at the end of recording of each page. a facsimile receiving device comprising: a control circuit that immediately causes the pulse motor to rapidly advance so that the cutting length of the recording paper reaches the second predetermined distance when the recording paper has not reached the second predetermined distance; .