JP2001077996A - Facsimile machine, control method for the facsimile machine, and computer-readable storage medium with control program of the facsimile terminal stored therein - Google Patents

Abstract

PROBLEM TO BE SOLVED: To conduct proper error re-transmission processing, in response to a both-side recording function of a receiver. SOLUTION: In the case of transmission, when a both side original read selection button 26 designates both-side transmission, a facsimile communication procedure revises a re-transmission start position of an image of an original, in the case of re-transmission due to an error during both-side alternate transmission processing on the basis of presence of a reception function of a both-side image of a receiver. In the case that the receiver has a reception function of the both-side image, re-transmission is started from an image on the front side of a page which caused communication error for the re-transmission, due to a communication error during the both-side alternate transmission processing. When the receiver has no receiving function of the both-side image, the re- transmission is started from an image of the front side or the rear side which caused the communication error in the case of re-transmission, due to a communication error during the both-side alternate transmission processing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is capable of performing double-sided alternate transmission processing for reading images on both sides of an original and alternately transmitting images on the front and back sides of each page of the original. The present invention relates to a facsimile apparatus capable of retransmitting a document image from the middle thereof once the line is disconnected, a control method of the facsimile apparatus, and a computer-readable storage medium storing a control program of the facsimile apparatus.

[0002]

2. Description of the Related Art In a conventional facsimile apparatus, when a communication error occurs during a communication, a line is temporarily disconnected, and then a retransmission is performed from a page in the original image where the communication error occurred in the middle. Have been.

Further, in addition to the conventional single-sided transmission, a facsimile apparatus capable of reading and transmitting images on both sides of a document has recently been proposed.

In this type of apparatus, one sided image of a double-sided document is read and transmitted in the same manner as a conventional one-page image. Then, at the time of transmission, information about the page number and the front and back (side or face) is transmitted by a post message signal or the like, and the receiving side reproduces the image information transmitted by double-side recording or the like based on the information. For example, if possible on the receiving side, the image on the front side is recorded on the front side and the image on the back side is recorded on the back side by double-sided recording. If only single-sided recording is possible, the received image information is sequentially recorded on one side.

[0005] Further, as a method of transmitting the front and back image information, continuous transmission of both sides in which the entire front side image is transmitted and then the entire back side image is transmitted, or the front side image and the rear side image are transmitted alternately for each page. Is known.

[0006]

In such a facsimile apparatus capable of double-sided transmission, it is conceivable to implement the retransmission function as described above. However, the above retransmission function is simply implemented. That is not enough.

For example, considering a configuration in which the above-described retransmission function is simply implemented as it is, since a conventional retransmission technique does not consider double-sided transmission, there is a communication error when reading / transmitting a double-sided original. In this case, retransmission is always performed by the same operation regardless of the presence or absence of the recording function of the duplex document on the receiver side.

For example, if the other party is a receiver capable of double-sided printing, if an error occurs on the back side, once the line is disconnected and then transmitted from the back side, the receiving side starts double-sided printing from the back side. Therefore, the structure of the document is different from that of the original.

In consideration of this point, for example, when a communication error occurs during the transmission of a two-sided document, retransmission from the front side of the document information is convenient if the receiver of the other party can perform double-sided recording. If the receiver can perform only one-sided recording, there is a problem that two pieces of the same page information are output and the user is confused.

[0010] It is an object of the present invention to solve the above-mentioned problem and to enable an appropriate error retransmission process to be performed according to the presence / absence of a duplex recording function of a receiver.

[0011]

According to the present invention, to solve the above-mentioned problems, an image on both sides of a document is read,
A facsimile machine capable of alternately transmitting double-sided transmission processing of alternately transmitting images on the front and back surfaces of each page of a document, and once a communication error occurs, once disconnecting the line and retransmitting the document image halfway, A method for controlling a facsimile apparatus, and a method for retransmitting when a communication error occurs during a two-sided alternate transmission process, based on the presence or absence of a two-sided image receiving function of a receiver in a computer-readable storage medium storing a control program for the facsimile apparatus. At this time, a configuration is adopted in which the retransmission start position of the document image is changed based on whether or not the receiver has performed the duplex communication in the previous communication.

[0012] Alternatively, if the receiver is performing double-sided communication in the previous communication, when retransmission is performed when a communication error occurs during the double-sided alternate transmission process, the image on the front surface of the page where the communication error has occurred is determined. If retransmission is started and the receiver has not performed duplex communication in the previous communication, the retransmission is performed when a communication error occurs during the duplex duplex transmission process. The retransmission is started from the image of (1).

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a hardware configuration of a facsimile apparatus employing the present invention.

In FIG. 1, reference numeral 2 denotes an NCU (network control unit) which connects a telephone network to a terminal of the line in order to use the telephone network for data communication and the like, controls connection of a telephone exchange network, and performs data communication. This is for switching to a road or maintaining a loop. Under control of the control circuit 20, the NCU 2 connects the telephone line 2a to the telephone 4 (CML off) or connects the telephone line 2a to the facsimile machine (CML on). In a normal state, the telephone line 2a is connected to the telephone 4 side.

Reference numeral 6 denotes a hybrid circuit which separates a transmission system signal and a reception system signal, sends a transmission signal from the addition circuit 12 to the telephone line 2a via the NCU 2, and transmits a signal from the other party to the NCU 2 Via the signal line 6a and sent to the modem 8 via the signal line 6a.

Reference numeral 8 denotes a modulator / demodulator. 8, V.I. 21, V.I. 27ter, V.I. 29, V.I. 1
7, V.I. The modulation and demodulation are performed based on the signal line 34, and each transmission mode is designated by the signal line 20c. The modem 8 receives the signal output on the signal line 20b, outputs modulated data on the signal line 8a, receives the received signal output on the signal line 6a, and outputs the demodulated data on the signal line 8a.
b.

Reference numeral 10 denotes an AN for transmitting an ANSam signal.
This is a Sam signal transmission circuit. When a signal of signal level "1" is output to the signal line 20d, an ANSam signal is transmitted to the signal line 10a, and a signal of signal level "0" is output to the signal line 20d. No signal is output to the signal line 10a.

Reference numeral 12 denotes an addition circuit, which inputs information on the signal line 8a and information on the signal line 10a, and outputs a result of the addition to the signal line 12a.

Reference numerals 14 and 16 denote an image reading and recording system. In order to support double-sided transmission, reading of both sides of a document and recording of recording paper on both sides are enabled.

Reference numeral 14 denotes a reading circuit including a document conveying system, an optical reading element, and the like, and outputs image data read from the document to a signal line 14a. Also, the reading circuit 14
Reads the information on the front side of the document when the signal of signal level “0” is output to the signal line 20f, and reads the information on the back side of the document when the signal of signal level “1” is output to the signal line 20f. Read.

Reference numeral 16 denotes a recording circuit for recording image data formed by various recording methods such as an electrophotographic method and an ink jet method, and sequentially outputs information output to a signal line 20e line by line on a recording paper. To record. The recording circuit 16 records on the surface of the recording paper when the signal of the signal level "0" is output to the signal line 20g, and records on the recording paper when the signal of the signal level "1" is output to the signal line 20g. Record on the back of

In this specification, the recording circuit 1 is used consistently.
"Recording paper" refers to the medium to be recorded by 6.
However, it is needless to say that the material of the "recording paper" is not necessarily literally "paper" but may be another material such as a plastic sheet.

Reference numeral 18 denotes a memory circuit, which includes ROM, R,
It is composed of an arbitrary storage device such as an AM or a hard disk, and is used for storing various data. For example, the memory circuit 18 is used as a work memory, or stores raw information or encoded information of read data, and stores received information or decoded information.

Reference numeral 22 denotes a calling circuit, and a signal line 20h
When a call command pulse is generated, the telephone number information output to the signal line 20i is input, and a selection signal (such as a dial pulse or a DTMF signal) is output to the signal line 22a.

Reference numeral 24 denotes an operation unit, and its keyboard has one-touch dial, speed dial, numeric keypad, * key, # key, start key, set key, stop key, one-touch dial, and other function keys. The key information pressed by the operation unit 24 is
output to a.

Reference numeral 26 denotes a double-sided document reading selection button, which is pressed by the user when reading of a double-sided document is selected. When the double-sided document reading selection button 26 is pressed, a pressing pulse is generated on the signal line 26a.

Reference numeral 28 denotes a double-sided original reading display circuit.
When a clear pulse is generated on the signal line 20j, "Do not perform double-sided original reading display" is displayed, and every time a press pulse is generated on the signal line 26a, "Do both-sided original reading display"->"Do not perform double-sided original reading display"->"Do both-sided original reading display" ...
Is repeated. This double-sided document reading and displaying circuit 28
It also operates as a detection circuit indicating the setting state of double-sided original reading by the double-sided original reading selection button 26. That is, the double-sided original reading and displaying circuit 28 outputs a signal of signal level "1" to the signal line 28a when "two-sided original reading and displaying are in progress", and outputs the signal line 2 when "two-sided original reading and not displaying" is in effect
A signal of signal level "0" is output to 8a.

Reference numeral 20 denotes a microprocessor, RO
A control circuit including an M, a RAM, and the like, and controls the operation of the entire apparatus based on a control program described later stored in a ROM unit or the like of the memory circuit 18.

In this embodiment, when the reading and transmission of a two-sided original is selected by the two-sided original reading selection button 26, the control circuit 20 determines whether or not the two-sided original is received on the receiver side based on the presence or absence of the function of receiving the two-sided original. Change the control of retransmission when a communication error occurs during transmission. Specifically, the control of the present embodiment is to change the mode of retransmission when a communication error occurs, and the previous communication (that is, the communication with the present device) is performed on the other party's receiver on both sides. When transmitting a two-sided original, if a communication error occurs, re-transmit the errored original information from the front side, and if a two-sided original was not transmitted to the other receiver in the previous communication, transmit the two-sided original, When a communication error occurs, retransmission from the page information where the error occurred is executed.

In this embodiment, double-sided original transmission is performed by a double-sided alternate transmission method in which an image on the front side and an image on the back side are alternately transmitted for each page.

Next, the operation of the above configuration will be described with reference to FIGS. 2 to 4 show a communication control procedure executed by the CPU 26. The illustrated procedure is stored in a ROM section or the like of the memory circuit 18 as a program of the control circuit 20. 2 to 4 are continuous at each position.

In FIG. 2, step S0 indicates the start of processing started by a predetermined reset operation or the like. In steps S2 to S10, each unit is initialized.

First, in step S2, a clear pulse is generated on the signal line 20j to control the double-sided original reading display circuit 28 so as not to perform double-sided original reading display.

In step S4, a signal of signal level "0" is output to the signal line 20a, the CML of the NCU 2 is turned off, and the line 2a is connected to the telephone 4 side.

In step S6, a signal of signal level "0" is output to the signal line 20d, and the ANSam sending circuit 10 is controlled so as not to transmit the ANSam signal.

In steps S8 and S10, the reading circuit 14 and the recording circuit 16 are set to perform one-side processing.

First, in step S8, a signal of signal level "0" is output to the signal line 20f, and the reading circuit 14 is set to execute reading of the front surface.

In step S10, a signal of signal level "0" is output to the signal line 20g, and the recording circuit 16 is set to record on the front surface.

Subsequently, in step S12, the signal line 28a
, And determines whether or not the user has selected double-sided document reading. When double-sided document reading is selected, the process proceeds to step S16. If it has not been selected, the process proceeds to step S14 to execute other processing such as copying of a document.

In step S16, a signal of signal level "0" is output to the signal line 20a, CML is turned on, and
a is connected to the facsimile machine side (hybrid circuit 6 side).

In step S18, a call is made to the designated destination using the calling circuit 22. Designation of the destination is performed by a known operation procedure using a ten-key or one-touch key of the operation unit 24, or in the case of time designation transmission or the like, based on timer counting.

In step S20, a pre-facsimile communication procedure is executed. Then, in step S22 of FIG. 3, it is determined whether or not the receiver has a two-sided reception function. If the receiver has a two-sided reception function, the process proceeds to step S24, and if not, the process proceeds to step S62 (FIG. 4).

In step S24, the remaining pre-facsimile communication procedure is executed. Here, since the receiver has a double-sided reception function, double-sided transmission is designated. Step S
At 24, the reading circuit 14 is reset to perform double-sided reading.

In step S26, the counter pagec
Set 1 to t. This counter page is used as a register of the CPU constituting the control circuit 20 or the memory circuit 1.
8 using a predetermined memory area, and a counter pa
The number stored in "gect" indicates the number of the document. Which of the front and back sides of the document is being processed is represented by the following flag FACE.

In step S28, "table" information is set in the flag FACE. The flag FACE is also stored in a register of the CPU constituting the control circuit 20 or the memory circuit 1.
8 is used to indicate whether the document surface currently being processed is the front side or the back side.

In step S30, the counter pagec
The information of the flag FACE of the page indicated by t is transmitted by one page.

In this embodiment, regarding the handling of image data, all the images of the original read by the reading circuit 14 are all stored in the image memory of the memory circuit 18 and the values of the counter page and the flag FACE are stored in the image memory. The configuration is such that the image can be taken out as appropriate, or at least the front and back images of the page indicated by the counter page remain in the image memory of the memory circuit 18 until they are transmitted without error. .

In step S32, an intermediate procedure is executed.
Here, when the ECM procedure is used, a PPS-Q signal, or when the ECM procedure is not used, an MPS signal or the like is transmitted as a post message signal, and a response from the receiver is waited.

In step S34, a communication error (normally,
It is determined whether or not an error that cannot be recovered due to the ECM process or the fallback of the transmission speed has occurred. If such a communication error has occurred, the process returns to step S46 (FIG. 4). If not, the process proceeds to step S36.

In step S36, it is determined whether or not the flag FACE is "table".
Then, the process proceeds to step 38, where "back" information is set in the flag FACE. If the flag FACE is “back”, step S
Proceed to 42.

At step S40, the counter pagec
Increment the value of t by one.

In step S42, it is determined whether or not there is a next document. If there is a next document, the process proceeds to step S40. If there is no next document, the process proceeds to step S44 to execute a procedure after facsimile communication.

If a communication error has occurred in step S34, the process proceeds to retransmission.
At 46, a signal of signal level "0" is output to the signal line 20a, the CML of the NCU 2 is turned off, and the line 2a is connected to the telephone 4 side. Then, in step S48, a wait is made for one minute before retransmission.

Further, in step S50, the signal line 20
A signal of signal level "1" is output to a, the CML is turned on, the line 2a is connected to the facsimile apparatus side, and the calling circuit 22 makes a call to the same destination as the time when the communication error occurred earlier in step S52. I do.

In step S54, it is determined whether or not the other party has a two-sided communication function and whether or not two-sided transmission has been performed in the immediately preceding communication. If this determination is affirmed, the process proceeds to step S56. A facsimile communication pre-procedure for designating double-sided transmission is executed, and step S in FIG.
Return to 28. Thereafter, retransmission is performed by double-sided transmission.

At this time, when an error occurs as apparent from the position of step S40, the counter paget is stopped there and is not incremented. Therefore, when returning to step S28 and starting retransmission by double-sided transmission, the error becomes Regardless of the surface that occurred, retransmission is always performed from the table of the page indicated by the counter page.

If step S54 is denied, the flow advances to step S58 to execute a pre-facsimile communication procedure designating single-sided transmission. In other words, when the receiver is “not performing double-sided transmission in the immediately preceding communication”, retransmission is performed by single-sided transmission.

It should be noted that whether or not double-sided communication has been performed in the previous communication in step S54 is notified to the apparatus by an appropriate facsimile procedure signal.

In step S60, it is determined whether or not the flag FACE is a table.
The process proceeds to step S38, and if "back", the process proceeds to step S38. That is, this step S60, which is executed when the receiver has not performed double-sided recording in the previous communication, determines whether to start retransmission at the front or back of the page where the communication error has occurred. Things. As apparent from the position of step S40, when an error occurs, the counter paget stops there and is not incremented. Then, in step S60, retransmission is started from the side where the error has occurred in accordance with the information of the flag FACE. At this time, if the flag FACE is “front”, retransmission is started from the front of the page where the error has occurred by the determination in step S60, and if the flag FACE is “back”, the retransmission is started from the back of the page where the error has occurred. Transmission starts. If the receiver has not recorded on both sides in the previous communication, retransmission is started from the side where the error occurred (front or back).

Step S62 is a process in the case where the receiver does not have the double-sided transmission function in step S22, and designates single-sided transmission in the remaining pre-facsimile communication procedure.

As described above, in the retransmission performed after disconnecting the line after a communication error occurs during transmission of a two-sided original, whether the receiver has performed “two-sided recording in the previous communication” In other words, if the receiver has a two-sided image receiving function, it is further determined whether or not two-sided communication has been performed in the previous communication, and the retransmission start position of the original image at the time of retransmission is determined based on that. To determine. Therefore, the retransmission start position of the original image at the time of retransmission can be automatically determined based on the presence or absence of the duplex image receiving function of the receiver without the user having to perform a troublesome operation.

In particular, according to the present embodiment, when the receiver has performed double-sided recording in the previous communication, retransmission is performed from the front side irrespective of the side on which the error has occurred, while the receiver performs the previous transmission. When duplex recording is not performed by communication, retransmission is performed from the side where an error has occurred. Therefore, appropriate error retransmission is possible depending on the presence or absence of the two-sided recording function of the receiver. If the receiver has the two-sided recording function, retransmission is performed from the front side regardless of the side where the error occurred. In, one complete page having both front and back images can be obtained by retransmission. Also,
If the receiver does not have the double-sided recording function, retransmission is performed from the side where the error occurred, so that the image on the same side is recorded by the receiver as described in the problem section. And does not confuse the user. Since such processing is automatically executed according to the duplex recording function of the receiver, there is no need for the user to perform any troublesome operation.

In each of the embodiments described above, the configuration of the facsimile machine is shown. However, the present invention can be applied not only to the facsimile machine but also to a communication apparatus using any other communication protocol. Not even. For example, the present invention can be implemented in a configuration in which a general-purpose terminal such as a personal computer is externally / built-in with a (FAX) modem or a terminal adapter, and performs communication using a predetermined communication protocol under software control. it can. In that case, the technique of the present invention can be used to specify a specific communication mode used in an arbitrary communication protocol at the time of relay processing. Also,
The control program of the present invention can be stored and supplied not only in the memory circuit 18 described above but also in any computer-readable recording medium such as a hard disk, a floppy disk, an optical disk, a magneto-optical disk, and a memory card.

[0064]

As is apparent from the above description, according to the present invention, it is possible to perform a double-sided alternate transmission process for reading images on both sides of a document and transmitting the images on both sides of the document alternately. When a communication error occurs, the facsimile apparatus capable of retransmitting the original image from the middle after the line has been disconnected once, the control method of the facsimile apparatus, and the computer-readable storage medium storing the control program of the facsimile apparatus, have both sides. When retransmission is performed when a communication error occurs during the alternate transmission process, a configuration is adopted in which the retransmission start position of the document image is changed based on whether or not the receiver has performed duplex communication in the previous communication. Therefore, it is possible to automatically determine the retransmission start position of the document image at the time of retransmission without the user having to perform a troublesome operation.

Alternatively, if the receiver is performing double-sided communication in the previous communication, when retransmission is performed when a communication error occurs during the double-sided alternate transmission processing, the image on the front surface of the page where the communication error has occurred is determined. If retransmission is started and the receiver has not performed duplex communication in the previous communication, the retransmission is performed when a communication error occurs during the duplex duplex transmission process. If a configuration that starts retransmission from the image is adopted, it is possible to perform appropriate error retransmission, and if the receiver has previously performed two-sided communication, it will retransmit from the surface regardless of the surface where the error occurred , The receiver can retransmit a complete page with both front and back images,
Also, if the receiver has not performed two-sided communication last time, retransmission is performed from the side where the error occurred,
The image on the same side is not recorded by the receiver,
There is an excellent effect that the user is not confused.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a facsimile apparatus employing the present invention.

FIG. 2 is a flowchart showing a communication control flow of a control circuit 20 of FIG. 1;

FIG. 3 is a flowchart illustrating a flow of communication control of a control circuit 20 of FIG. 1;

FIG. 4 is a flowchart showing a flow of communication control of a control circuit 20 of FIG. 1;

[Explanation of symbols]

 2 NCU 4 Telephone 6 Hybrid circuit 8 Modulator / demodulator 10 ANSam transmission circuit 12 Addition circuit 14 Reading circuit 16 Recording circuit 18 Memory circuit 20 Control circuit 22 Calling circuit 24 Operation unit 26 Selection button 28 Display circuit

Claims (6)

[Claims] 1. A two-sided alternate transmission process in which images on both sides of a document are read and images on both sides of the document are alternately transmitted, and when a communication error occurs,
In a facsimile machine that can retransmit the original image from the middle after the line has been disconnected, the retransmission start position of the original image is set by the receiver when the retransmission is performed when a communication error occurs during the duplex duplex transmission process. A facsimile apparatus having control means for changing based on whether or not two-sided communication is performed in communication. 2. The control unit according to claim 1, wherein, when the receiver is performing double-sided communication in the previous communication, when a communication error occurs during a double-sided alternate transmission process, a retransmission of a page in which a communication error has occurred is performed. If retransmission is started from the image on the front side and the receiver has not performed duplex communication in the previous communication, when retransmission is performed when a communication error occurs during duplex The facsimile apparatus according to claim 1, wherein retransmission is started from an image of the back side. 3. A double-sided alternate transmission process for reading images on both sides of a document and transmitting the images on the front and back of each page of the document alternately, and when a communication error occurs,
A method of controlling a facsimile machine capable of once re-transmitting a document image from the middle after disconnecting the line. In a re-transmission performed when a communication error occurs during the double-sided alternate transmission process, the re-transmission start position of the document image is set to the receiver. Controlling the facsimile apparatus based on whether or not two-sided communication has been executed in the previous communication. 4. In the control step, if the receiver is performing double-sided communication in the previous communication, when retransmission is performed when a communication error occurs during the double-sided alternate transmission processing, the page in which the communication error has occurred is determined. If retransmission is started from the image on the front side and the receiver has not performed duplex communication in the previous communication, when retransmission is performed when a communication error occurs during duplex 4. The method according to claim 3, wherein retransmission is started from an image of the back side. 5. A double-sided alternate transmission process in which images on both sides of a document are read and images on both sides of the document are alternately transmitted, and when a communication error occurs,
Once the line is disconnected, the original image can be retransmitted on a computer-readable storage medium that stores a control program for a facsimile machine that can retransmit the original image from the middle when a communication error occurs during the duplex duplex transmission process. A computer-readable storage medium storing a control program for a facsimile apparatus, characterized by storing a control step of changing the retransmission start position of the facsimile apparatus based on whether the receiver has performed duplex communication in the previous communication. . 6. In the control step, when the receiver is performing double-sided communication in the previous communication, when retransmission is performed when a communication error occurs during double-sided alternate transmission processing, a page in which a communication error has occurred is determined. If retransmission is started from the image on the front side and the receiver has not performed duplex communication in the previous communication, when retransmission is performed when a communication error occurs during duplex 7. A computer-readable storage medium storing a control program for a facsimile apparatus according to claim 6, wherein a control procedure for starting retransmission from an image on the back side is stored.