JP2001177710A - Facsimile terminal for double-sided original - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a facsimile terminal capable of processing a double-sided original that prevents a utilizing efficiency of a communication line and a paperwork efficiency at a transmitter side and a receiver side from being deteriorated. SOLUTION: A read section 11 reads image data of a double-sided original sent from a transmitter side and stores the data to an image memory 6. A recording section 12 records the image data on both sides of paper. A double- side print unit of the facsimile terminal at the receiver side declares the transmitter side as to whether the print unit can record data on both sides of paper or only one side of paper through a communication protocol by using a modem 5, an NCU 4 and an external channel 3. Through the declaration above, in the case that the receiver side can record data only on one side of paper, the transmitter side transmits image data for one-side original without stopping the transmission of image data and the receiver side records the image data for the one-side original onto one side of paper.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-sided facsimile apparatus which prevents a decrease in the efficiency of use of a communication line and a decrease in the efficiency of business processing on a transmitting side and a receiving side.

[0002]

2. Description of the Related Art With the recent development of communication technology, facsimile apparatuses having various functions have been developed. As one example, a facsimile apparatus having a duplex print unit (hereinafter abbreviated as a duplex facsimile apparatus) for receiving image data of a duplex document transmitted from a transmission side and recording the image data on both sides of a sheet is known. ing.

The double-sided print unit uses, for example, an electrophotographic printer, records one side of image data of a double-sided document on one side (front side) of the sheet, temporarily stores the image data in an intermediate tray, and turns the front and back of the sheet. The other image data is recorded on the back side after being reversed.

A double-sided facsimile apparatus can respond to a user's demand for saving paper from the viewpoint of recent growing interest in environmental conservation and effective use of resources. In addition, recording image data on both sides of a sheet also has the advantage of reducing costs, so that an increase in the number of users who use a double-sided facsimile machine is expected.

In the duplex facsimile apparatus on the receiving side, the duplex printing unit has a paper jam (jam).
In some cases. In such a case,
Since the receiving side cannot record the image data on both sides of the sheet, if the transmitting side transmits the image data of the two-sided original, a communication error occurs and the image cannot be recorded. .

[0006]

However, as described above, in the case where the image data cannot be recorded on both sides of the sheet due to the occurrence of a jam on the receiving side, various forms are available. is there. For example, if a jam has occurred on the conveyance path of the intermediate tray, the image data is received on the receiving side.
Even if the data cannot be recorded on both sides of the sheet, the image data can be recorded on one side of the sheet.

[0007] Even in such a case, the image data is received on the receiving side.
Since the data cannot be recorded, the image data must be transmitted again to the receiving side after the recovery from the jam, and there has been a problem that the use efficiency of the communication line is reduced. Further, there has been a problem that the efficiency of business processing between the transmitting side and the receiving side is reduced.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a double-sided facsimile apparatus which prevents a decrease in the efficiency of use of a communication line and the efficiency of business processing on a transmitting side and a receiving side.

[0009]

In order to achieve the above object of the present invention, according to the first aspect of the present invention, a double-sided facsimile apparatus receives image data of a double-sided original and records the data on both sides of a sheet. Means for determining that the two-sided printer can record image data only on one side of a sheet, and a communication procedure for determining that the two-sided printer has the capability of receiving one-sided image data. Means for declaring to the transmitting side.

According to a second aspect of the present invention, in the two-sided facsimile apparatus according to the first aspect, in response to the declaration of the capability of the one-sided reception, image data is transmitted from the transmission side as a one-sided original. Is transmitted, the image data is recorded on one side of the sheet.

According to a third aspect of the present invention, in the facsimile apparatus according to the first aspect, while the image data of the two-sided original is being received, the two-sided printer cannot perform the two-sided recording but can perform the one-sided recording. And a means for again declaring to the transmission side that the capability of single-sided reception of image data is available to the transmitting side in accordance with the communication procedure. After the declaration, the image data of the single-sided original is received. And recording on one side of the paper.

According to the features of the invention according to claim 1,
When the double-sided printer determines that image data can be recorded only on one side of the sheet, means is provided for declaring to the transmitting side by communication procedures that the printer has the capability of single-sided reception of image data. Therefore, on the transmitting side, the image data of the two-sided original is
The image data of the one-sided original can be transmitted instead of the data, so that the communication line can be used continuously without interruption and the communication line can be effectively used.

According to the second aspect of the present invention, when image data is transmitted from the transmitting side as a one-sided original in response to the declaration of the capability of one-sided reception, the one-sided paper Image data. For this reason, even if an abnormality such as a jam occurs in the mechanism of the duplex printing unit, it is not necessary to transmit the image data of the original document again, so that the communication line can be effectively used and the transmission side and the reception side can be used. Side office work efficiency can be improved.

Further, in the invention according to claim 3,
Initially, it was possible to record image data of a two-sided original, but if it becomes impossible to perform two-sided recording while receiving the image data, and if single-sided recording becomes possible, the image is printed on one side of the paper. The data is recorded. For this reason, even if an abnormality occurs in the mechanical unit of the double-sided print unit after the double-sided recording of the image data is started, the recording of the image data is continued without interrupting the subsequent processing. In this case as well, effective use of the communication line can be achieved, and office work efficiency on the transmission side and the reception side can be improved.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a double-sided facsimile apparatus according to the present invention. FIG.
FIG. 4 is an explanatory diagram showing an example of a communication procedure (protocol) in a sequence, in which a facsimile apparatus on a calling side (transmitting side) transmits a facsimile original (image data) to a facsimile apparatus on a called side (receiving side). FIG. 9 shows an example of transmitting (-). Next, this communication procedure will be described. In the following, “the calling facsimile machine” and “the called facsimile machine” are abbreviated and simply expressed as “the calling machine” and “the called machine”.

The notation in FIG. 2 refers to the International Telegraph and Telephone Union (Int).
electronic Telecommunications
Recommendation of the standardization (T) of the cable system of the Ion Union (ITU) (recommendation of the ITU-T). 30.

In (1), after the called party responds to the incoming call and closes the DC circuit of the line, the called side transmits a called terminal identification signal (CED) to the calling side. Next, in (2), the non-standard function signal (NSF), the called terminal identification signal (CSI), and the digital identification signal (DIS) relating to the capability of the facsimile apparatus are transmitted from the called side to the calling side.

Next, in step (3), the calling side transmits a non-standard function setting signal (NSS) and a digital command signal (DCS) for transmitting a facsimile document to the called side. In step (4), a training check (TCF) is started from the calling side to the called side.

When the training check is completed,
In step (5), the called party sends a reception preparation confirmation signal (CF
R). If the training check fails, the called party transmits a training failure signal (FTT) to the calling party in (6). Next, when the training check is completed, the image data PIX is transmitted from the calling side to the called side in (7).

When the transmission of the image data is completed, the calling side transmits a procedure end signal (EOP) of (8) to the called side,
One of the multi-page signal (MPS) of (9) and the message end signal (EOM) of (10) is transmitted. From the called side, the message confirmation signal (M) of (11)
CF), (12) Retraining negative signal (RTN)
Is transmitted to the calling party. From the calling side,
The disconnection command signal (DCN) of (13) is transmitted to the called side to end the communication.

FIG. 1 is a block diagram showing a schematic configuration of a control device of a two-sided facsimile apparatus to which the present invention is applied. In FIG. 1, a control device 1 for a double-sided facsimile machine
Has a control unit 2 for processing various signals and data. The control unit 2 is constituted by, for example, a CPU (Central Processing Unit).

The control unit 2 includes a line control unit (NCU) 4,
Modem 5, image memory 6, RAM 7, ROM 8, display unit 9, operation unit 10, reading unit 11, recording unit 12, clock unit 13
Is connected.

The line control unit 4 is connected to the external line 3 and sends out a dial pulse corresponding to the dial number of the destination.
And an incoming call are detected. The modem 5 modulates / demodulates data transmitted / received to / from a communication terminal device such as a facsimile device of the other party, and connects to the line control unit 4. The image memory 6 stores image data to be transmitted and received. The RAM 7 stores management data for reservation transmission or memory reception. The ROM 8 stores data and programs necessary for various operations of the double-sided facsimile machine.

A cathode ray tube (CRT) or a liquid crystal display (LC)
Various messages necessary for the operation of the double-sided facsimile apparatus are displayed on the display unit 9 using D). An operation unit 10 including a keyboard, a mouse, and the like instructs various operations and stoppages of the double-sided facsimile machine.

The reading section 11 reads image data of a double-sided document transmitted from the transmitting side. That is, reading of image data on the front side and reading of image data on the back side are performed. The recording unit 12 records the image data transmitted from the destination on a sheet. The recording of the image data may be performed on both sides of the sheet or on one side of the sheet. The clock unit 13 counts the current time, and stores the reception time in the communication management record using the output of the clock unit 13.

In the present invention, whether a double-sided printing unit of a double-sided facsimile apparatus can record on both sides of a sheet,
Alternatively, whether or not recording is possible only on one side is declared from the receiving side to the transmitting side in the communication procedure. By making such a declaration, if the receiving side is in a state where recording is possible only on one side, the transmitting side transmits the image data of the one-sided original without stopping the transmission of the image data, Since this is recorded on one side of the sheet on the receiving side, the communication line can be effectively used.

FIGS. 3 to 7 are flowcharts showing a specific processing procedure of the present invention. Next, this flowchart will be described.

(1) In step S1, the program for the double-sided reception process is started, then, in step S2, the front side reception flag is set, and then, in step S3, a called terminal identification signal (CED) is transmitted. Next, the process proceeds to a process of step S4. In step S4, it is determined whether or not there is a duplex print unit. If the result of this determination is YES (hereinafter,
If abbreviated as Y), the process proceeds to step S5.
The reason for determining whether or not there is a double-sided print unit is that a single-sided print unit may be installed depending on the specifications of the apparatus even with the same software.

(2) In step S5, it is determined whether or not the mechanism of the double-sided printing unit is in a normal state. If the result of this determination is Y, that is, if double-sided printing is possible with the double-sided printing unit, then control proceeds to step S6. In step S6, both-side reception is possible, and a non-standard function signal (NSF) and a digital identification signal (DIS) relating to the capability of the facsimile apparatus are transmitted, and the process proceeds to step S8.

(3) When the determination result in step S4 is NO (hereinafter abbreviated as N), and when the determination result in step S5 is N, that is, when there is no duplex printing unit, If there is an abnormality and double-sided recording cannot be performed, a non-standard function signal (NSF) and a digital identification signal (DI
S) and the process proceeds to step S8. Thus, in the present invention, the communication procedure (NSF and DI
S) is used to declare to the transmitting side that duplex reception is not possible.

(4) In step S8, a non-standard function setting signal (NSS), a digital command signal (DCS) for transmitting a facsimile document, and a training check (T
CF) is determined. If the result of this determination is N, then control proceeds to step S9, where it is determined whether a disconnection command signal (DCN) has been received. If the result of this determination is Y, the processing program ends in step S11.

(5) If the result of the determination in step S9 is N, then in step S10, it is determined whether or not the set time of the program processing has timed out. If the result of this determination is Y, the processing program ends in step S11. When the result of the determination in step S10 is N, the process returns to step S4, and the processing following the determination of whether or not there is a double-sided print unit is repeated.

(6) If the decision result in the step S8 is Y, then in a step S12 a training check (TC
It is determined whether or not F) is successfully performed. If the determination result is Y, the process proceeds to step S13, where a reception preparation confirmation signal (CFR) is transmitted, and subsequently, step S14 is performed.
Proceed to processing.

(7) If the decision result in the step S8 is N, a training failure signal (FT) is outputted in a step S15.
T), the process returns to step S8, and whether a non-standard function setting signal (NSS), page information (DCS) for transmitting a facsimile document, and a training check (TCF) have been received. Determine whether

(8) In step S14, it is determined whether or not high-speed data reception is performed. When this determination result is N,
The process returns to step S8. If the decision result in the step S14 is Y, then in a step S16 the image data of one page is received and stored in the image memory, and the process shifts to a step S17. The image data received at this time is image data of a double-sided original when double-sided recording is possible, and if it is declared in step S7 that single-sided recording is possible, the image data of the single-sided original is It becomes image data.

(9) In step S17, it is determined whether or not there is a double-sided print unit. If the determination result is Y, it is determined in step S18 whether or not the mechanism of the double-sided print unit is in a normal state. In the process of step S18, double-sided printing was initially enabled, but double-sided printing could be performed by the double-sided printing unit due to a jam occurring in the conveyance path of the intermediate tray during the reception of image data. It is to determine whether or not it is gone.

(10) Step S17 and Step S18
Is negative, it is determined in step S19 whether or not normal printing is possible. If the determination result is Y, the process proceeds to step S20 to print the received image data without using the double-sided printing unit. That is,
If it is determined in step S18 that the mechanism of the duplex printing unit is not in a normal state, the image data received thereafter is recorded on one side of the sheet.
If the decision result in the step S19 is N, a step S2 is executed.
The process proceeds to step 8 to determine whether or not a post message has been received.

(11) If the decision result in the step S18 is Y, it is decided in a step S21 whether or not the front reception flag is set. If the result of this determination is Y, then in step S22 the received image data is printed on the surface of the paper. Subsequently, the front reception flag is reset in step S23, and the process proceeds to step S28.

(12) If the decision result in the step S21 is N, the process shifts to a step S24 to print the received image data on the back side of the sheet. Subsequently, step S25
Sets the front side reception flag, and proceeds to the process of step S30. As described above, since the front reception flag is reset in step S23, the reception image data of the next page (page 2) is output.
The result of the determination in step S21 is N,
By performing the back surface printing process in step S24, double-sided recording is performed. By performing the processing in step S23, the determination result in step S21 becomes Y, and the next image data to be received is recorded on the surface of the sheet.

(13) After the received image data is printed on the front side of the paper in the processing of step S20, the process proceeds to step S26.
To determine if printing is normal. If the result of this determination is Y, then in step S27 the received printed image data is erased from the image memory. Subsequently, in step S28, a procedure end signal (EOP), a multi-page signal (MPS)
It is determined whether or not a post message such as is received. If the decision result in the step S28 is N, a step S28 is executed.
At 29, the processing program ends.

(14) After the processing of the front side reception flag set in the step S25, the process proceeds to the step S30,
It is determined whether the printing has been performed normally. If the result of this determination is Y, then in step S31, the received image data of the two printed pages is deleted from the image memory, and step S31 is executed.
The process moves to step 28.

It should be noted that although there is no procedure for judging whether the printing of the received image data printed on the front side is normal or not, this is because the printing failure of the front side printing occurs.
In many cases, a jam has occurred outside the conveyance path of the intermediate tray, that is, since both sides cannot be recorded, step S3 is performed in the subsequent processing.
This is because there is not much significance in determining whether or not normal printing is possible (determining whether or not single-sided recording is possible) as in No. 2.

As described above, since the printing failure is not determined for the front side printing, the description of the process of erasing the printed received image data from the image memory as in step S31 is omitted. If double-sided printing is possible, the image data on the front and back sides of the document is erased after the back side printing is completed. This is because if a paper jam occurs during backside recording and single-sided printing becomes impossible, it is necessary to start recording again from the front side of the page after removing the paper jam.

(15) If the decision result in the step S30 is N, it is next decided in a step S32 whether or not normal printing is possible. If the result of this determination is N, the process moves to step S28. If the decision result in the step S32 is Y, a step S33 prints the front side received image data without using the double-sided printing unit.

(16) Next, in step S34, it is determined whether or not printing has been normally performed. If the result of this determination is N, the process moves to step S28. Step S
If the determination result at step 34 is Y, then at step S35, the received printed image data is deleted from the image memory, and the process proceeds to step S36.

(17) In the process of step S36, the back side received image data is printed without using the duplex printing unit. In this way, the front side received image data and the back side received image data are printed without using the double-sided print unit by the processing of steps S33 and S36.

(18) Subsequently, it is determined in step S37 whether or not printing has been normally performed. This determination result is N
If, the process proceeds to step S28. If the decision result in the step S37 is Y, then a step S38 is executed.
Deletes the printed received image data from the image memory, and shifts to the processing of step S28.

(19) If the result of the determination in step S28 is Y and it is determined that a post message has been received, then in step S39 a procedure end signal (EOP)
Is determined. If the result of this determination is Y, it is next determined in step S40 whether the print quality is good.

(20) If the decision result in the step S40 is Y, a message confirmation signal (MCF) is transmitted in a step S41, and the processing program is ended in a step S42. If the determination result in step S40 is N, then in step S43, the retraining negative signal (R
TN) and then determines whether or not the disconnection command signal (DCN) has been received in step S44.

(21) If the determination result in the step S44 is Y, the processing program is ended in a step S42. When the determination result of step S44 is N,
Next, in step S45, it is determined whether a post message has been received. If the determination result is Y, the process returns to step S39 and determines whether a procedure end signal (EOP) has been received. If the determination result in step S45 is N, the process returns to step S8.

(22) If the determination result on the reception of the procedure end signal (EOP) is N in step S39, it is next determined in step S46 whether or not a multi-page signal (MPS) is received. If the result of this determination is Y, then it is determined in step S47 whether or not the print quality is good.

(23) If the decision result in the step S47 is Y, the process shifts to a step S48 to send a message confirmation signal (MCF). Subsequently, in step S49, it is determined whether a post message has been received. If the determination result is Y, the process returns to step S39 and determines whether a procedure end signal (EOP) has been received. If the decision result in the step S49 is N, the process returns to the step S16, and the image data of one page is received and stored in the image memory.

(24) If it is determined in step S47 that the print image quality is not good, the process proceeds to step S50 to send a retraining negative signal (RTN). Next, it is determined whether or not a post message has been received in step S51. If the determination result is Y, the process returns to step S39 to return to the procedure end signal (EO
P) is determined.

(25) If the decision result in the step S51 is N, the process returns to the step S8 to return to the non-standard function setting signal (NSS), a digital command signal (DCS) for transmitting a facsimile document, and a training check. (TC
F) is determined.

(26) If the multi-page signal (MPS) is not received in the processing of step S46, the signal message end signal (EO) is next processed in step S52.
M) is determined. If the result of this determination is N, the processing program ends in step S53.

(27) If the decision result in the step S52 is Y, then in a step S54, it is determined whether or not the print image quality is good. When the result of the determination is Y, the process proceeds to step S55, where a message confirmation signal (MCF) is transmitted.

(28) Subsequently, it is determined whether or not a post message has been received in step S56. If the determination result is Y, the process returns to step S39 and determines whether a procedure end signal (EOP) has been received. Also,
If the decision result in the step S56 is N, the process returns to the step S4, and it is determined whether or not there is a duplex printing unit.

(24) If it is determined in step S54 that the print image quality is not good, the process proceeds to step S57 to send an RTN signal. Next, step S5
It is determined whether or not a post message has been received in the process of step 8. If the determination result is Y, the process returns to step S39 and determines whether a procedure end signal (EOP) has been received. If the decision result in the step S58 is N, the process returns to the step S4, and it is determined whether or not there is a duplex printing unit.

[0059]

As described above in detail, according to the first aspect of the present invention, when the double-sided printer determines that image data can be recorded on only one side of the sheet, the single-sided reception of the image data is performed. A means is provided for declaring to the transmitting side that the device has the capability of communication by a communication procedure. For this reason, the transmitting side can transmit the image data of the one-sided original instead of the image data of the two-sided original, so that the communication line can be used without interruption and can be used continuously. Effective use can be achieved.

According to the second aspect of the present invention, when image data is transmitted as a one-sided original from the transmission side in response to the declaration that the one-sided reception capability is provided, one-sided paper Image data. For this reason, even if an abnormality such as a jam occurs in the mechanism of the duplex printing unit, it is not necessary to transmit the image data of the original document again, so that the communication line can be effectively used and the transmission side and the reception side can be used. Side office work efficiency can be improved.

Further, in the invention according to claim 3,
Initially, it was possible to record image data of a two-sided original, but if it becomes impossible to perform two-sided recording while receiving the image data, and if single-sided recording becomes possible, the image is printed on one side of the paper. The data is recorded. For this reason, even if an abnormality occurs in the mechanical unit of the double-sided print unit after the double-sided recording of the image data is started, the recording of the image data is continued without interrupting the subsequent processing. In this case as well, effective use of the communication line can be achieved, and office work efficiency on the transmission side and the reception side can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram showing an example of a double-sided facsimile apparatus according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a communication procedure in a sequence.

FIG. 3 is a flowchart showing a processing procedure of the present invention.

FIG. 4 is a flowchart showing a processing procedure of the present invention.

FIG. 5 is a flowchart showing a processing procedure of the present invention.

FIG. 6 is a flowchart showing a processing procedure of the present invention.

FIG. 7 is a flowchart showing a processing procedure of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Control apparatus 2 Control part (CPU) 3 External line 4 Line control part 5 Modem 6 Image memory 7 RAM 9 Display part 10 Operation part 11 Reading part 12 Recording part

Claims (3)

[Claims] 1. A double-sided facsimile apparatus having a double-sided printer for receiving image data of a double-sided original and recording the image data on both sides of a sheet, the double-sided printer can record image data only on one side of the sheet. Means for determining
A double-sided facsimile apparatus, comprising means for declaring to the transmitting side by means of a communication procedure that the data has the capability of single-sided reception. 2. In response to the declaration of the capability of one-sided reception, an image data is sent from the transmission side as a one-sided original.
2. The double-sided facsimile apparatus according to claim 1, wherein when the data is transmitted, the image data is recorded on one side of the sheet. 3. While receiving image data of the double-sided document,
A means for determining that the duplex printer cannot perform duplex printing and a situation where single-sided printing can be performed, and a means for declaring again to the transmitting side that the capability of single-sided reception of image data is available by the communication procedure. 2. The double-sided facsimile apparatus according to claim 1, wherein after the declaration, the image data of the one-sided original is received and recorded on one side of the sheet.