JPH0457468A - Transmission method for facsimile equipment - Google Patents

Abstract

PURPOSE:To transfer information even when a reduction print stopping request is issued by transmitting a transmission original by dividing setting the size of a reception side original as a unit from a transmission side, and performing the unmagnified print of plural sheets of a received original at a reception side when no paper size larger than the one requested by the transmission side is included in reception side paper size capacity. CONSTITUTION:A transmission request to the reception side is inputted from an operator panel 5. A line control part 8 starts up an automatic outgoing circuit 9, and the automatic outgoing circuit 9, when receiving start-up, operates an NCU circuit part 10, and transmits transmission side capacity information to a line. Thence, when reception side capacity is inputted to the NCU circuit part 10 via the line, the line control part 8 informs the information to a control part 4. The control part 4 receives reception side capacity information, and confirms the capacity of the reception side, and compares requested size with the reception side capacity, and decides whether ordinary transmission, reduction transmission, or edit transmission should be performed corresponding to a comparison result.

Description

[Detailed description of the invention] [Required R] An object of the present invention is to enable information to be transferred even when there is a request to stop reduction printing, regarding a transmission method of facsimile devices when information is transferred between facsimile devices. When data is transferred between a sending facsimile machine and a receiving facsimile machine, the sending side first transmits the sending ability to the receiving side, then receives the receiving ability from the receiving side, and then sends the receiving side's paper to the receiving side. If the size capacity does not include a paper size larger than the paper size requested by the sending side, the sending side divides the sending document into units of size of the receiving side's original and sends it. The received original is configured to print multiple sheets at the same size.

[Industrial Field of Application] The present invention relates to a transmission method of facsimile devices when information is transferred between facsimile devices, and more particularly to improvement of a protocol of a facsimile device.

[Prior Art] In facsimile communication, document size/pixel density, etc. are usually negotiated between the sending side and the receiving side. Data transfer is then performed using the negotiation results.

In such conventional communication systems, if, as a result of negotiation, the receiving side only has a paper size smaller than the original to be sent, the sending side needs to reduce the size of the original.

In other words, the size that can be printed on the receiving side is, for example, A4.
In the case where only the size is specified, if the sending side attempts to send an original larger than A4 size (for example, A3), it may be necessary to reduce the size of the original.

In such a case, if the sending side wants to send the original at the same size, it is necessary to add a scale to the original to be sent or take steps to reduce the original to a size that can be received by the copying machine.

[Problem to be solved by the invention] Therefore, in order to avoid inconvenience to the receiving side, the sending side must know the size that can be printed on the receiving side, and must create a document that fits that size. There was a problem that it had to be done.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a transmission method for a facsimile device that allows information to be transferred even when there is a request to stop reduction printing.

[Means to solve the problem] FIG. 1 is a flowchart showing the principle of the method of the present invention.

In the case of data transfer between a sending facsimile machine and a receiving facsimile machine, the present invention first transmits the transmission capability from the sending side to the receiving side (Step 1), and then transmits the receiving capability from the receiving side. In Step 2), if the receiving side's paper size capabilities do not include a paper size larger than the paper size requested by the sending side, the sending side converts the transmitted document into units of the size of the receiving side's original. The receiving side prints the received original on multiple sheets at the same size (step 4).

[Action Co. Send the original to be sent in parts according to the size of the received original.

FIG. 2 is a diagram showing the relationship between the transmission request size and the printable size. (a) is the transmission request size and has the size of AXB. (b) shows printable sizes that can be printed on the receiving side. If the printable size is aXb and the print request size is divided into units of printable size, it is divided into nine sections from 1×1 to 3×3 as shown in the figure. Among these sections, the sections IXI, IX2, and 2x12x2 have the size of aXb, and the other sections are smaller than aXb. AX
This is because B is not a multiple of the area of aXb. The blocks thus divided are sequentially transferred to the transmitting side. In this way, even if there is a request to stop reduction printing on the receiving side, the original on the sending side can be transferred to the receiving side.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 3 is a flowchart showing one embodiment of the method of the present invention. The case shown in FIG. 2 will be explained as an example. Here, the area being scanned is m×n, and its coordinates are (x,
y). First, the initial value y=o, m-0, n-0
(Sl).

Next, it is set to x-0 (S2) and n-n+1 (S3). Furthermore, set y-mXb S4), r
r+-m+1 (S5), and in this state, notification of the start of the section mXn of the sections to be transferred in FIG. 2 is performed (S6). Initially, since m=l and n=1, a 1×1 partition start notification will be given.

Next, set y=y+1 (S7). Initially y=x. Next, check whether x+a>A (
S8). If x+a>A, then Fig. 2(a)
Since the section does not exceed the X-axis direction of
10). If z+a>A in step S8, the desired section is a section whose length in the X-axis direction is less than a, such as a 1x3 section, for example. In this section, A
After filling in white data from A to A+x to create data of length a (S11), compress the data by length a (S9), and transmit the compressed data (S9).
10).

Next, check whether it has become nXy-B (S
12). That is, here, it is checked whether the direction of the original document's X-axis has reached B (or not) (whether the final line has been reached). If n×y=B, then n
Check whether Xy=b (313). If nXy=b, it means that the data scan in the y direction of the section has been completed, and therefore a notification of completion of the mXn section is issued (S14). Further, in step S12,
Even when nXy=B, an mXn partition end notification is issued (S1
4).

In step 813, if it is not nXy-b, the scanning in the y direction of the section has not been completed, so the process returns to step S7 and updates the line in the y direction by 1 (S7
), perform a scan.

When the scanning of the m×n section is completed in step S14, the coordinate value in the X-axis direction is updated by x-X+a and a (S15). The partition has now been updated to the next partition. After updating X=X+a, it is checked whether x+a<A (516). In other words, this check checks whether the X coordinate is within the range A in FIG.

If it falls within the range of A, step S4
Go back and start scanning the next mXn section. If x
If +a<A, it is checked whether nXy-B holds (S17). If nX y = 13, this means that the transmission processing for all sections of the original document has been completed, and therefore the processing is ended. If it is not nXy-B, scanning in the X-axis direction has been completed up to eight, so for example, IXI, nX2. Since step nX3 has ended, the process returns to step S2 to move to the next starting point in the X-axis direction. In other words, the process returns to step S2 to move to the 2X1 section.

FIG. 4 is a flowchart showing the overall operation of the present invention.
It shows the behavior of the sender. When there is a transmission request, first the transmitter's capabilities are transmitted (S1), and then the receiver's capabilities are received (S2). In this way, once the negotiation is finished, the next step is to compare the request size with the receiver's capabilities (
S3). If the receiving side capacity is equal to the requested size, normal transmission is performed (S4).

If the required size is the receiver's ability, it will not be possible to receive it as is. In this case, it is checked whether it is a same size transmission request (S5).

If the request is not the same size, reduce transmission is performed (S6)
. In the case of a same size request, there is a request to stop reduction printing on the receiving side. In this case, editing and transmission according to the present invention as detailed in FIG. 3 will be performed (S7).

FIG. 5 is an operational flowchart of normal transmission.

In the case of normal transmission, first the initial value y- of the line.

(Sl), and then set y=y+x (S2). Therefore, initially, y=1 in step S2.

Next, the compressed data for the y-th line is transmitted (S3), and it is checked whether y has reached the final line B (S3).
4). If y=B, the process ends; otherwise, the process returns to step S2.

FIG. 6 is an operational flowchart of reduced transmission.

First, set the initial value of the line y=oSl,), then set y=y
Update to +1 (S2). Then, it is checked whether the line concerned is a thinning line (S3). If it is not a thinning line, restore the y-th line S4), a
The data is thinned out to /A bits (S5), and the y-th line is compressed (S6).

Then, the compressed data is transmitted (S7). When the pig transmission is finished, check whether the y line becomes the final line B (S8), and if it becomes B, the process ends.

If not, the process returns to step S2 and data transmission is repeated.

FIG. 7 is a diagram illustrating a transmission protocol according to the present invention.

(a) is the transmitting side, and (b) is the receiving side.

First, from the sending side to the sending side capability ((:, (HlmandD
ocument Capability Li5t
CDCL for short) is transmitted (■). C on the receiving side
When DCL is received, the receiving side transmission capability (Response
Document Capability Li
5t Po5itive (abbreviated as RDCLP) is transmitted (■).

Next, the transmitting side receives this RDCLP and confirms the capability of the receiving side. After confirming the receiver capabilities, select CDS (Co
mmand document t 5tart
CD5 for short) is started, and transmission of image data is started (■). Then, the image data (Comma
nd Document User Information
tion (abbreviated as CDU I) is transmitted (■).

When the image data transmission is completed, mXn section completion notification (C
omand Document End (abbreviated as CDE) is transmitted (■). On the receiving side, when receiving the CDE, the receiving side terminates (Response Document).
ment End Po5i t ive (RDEP for short) is accepted (■).

FIG. 8 is a block diagram showing an example of the configuration of a facsimile machine implementing the present invention. The document information read by the document reading section 1 is encoded by the encoding/decoding section 2, and then -
It is stored in the planar image storage memory 3. 4 is a control unit for realizing the method of the present invention, which includes control memory such as ROM, RA
Contains M etc. 5 is an operator panel consisting of a numeric keypad, one-touch keys, and a display. The control unit 4 is connected to an operator panel 5 as well as a timer monitoring unit 6 and a telephone number registration unit 7.

Here, when a transmission request to the receiving side is input from the operator panel 5, a predetermined telephone number stored in the telephone number registration section 7, for example, is called up by the control section 4. The control unit 4 is
A command signal is sent to the line control section 8. The line control section 8 activates the automatic transmission circuit section 9, and upon receiving the activation, the automatic transmission circuit section 9 operates the NC0 circuit section 10 and transmits the transmission side capability information to the line.

Next, when the receiving side capability from the receiving side enters the NC0 circuit section 10 via the line, the line control section 8 notifies the control section 4 of this information. The control unit 4 receives this receiving side capability information, checks the receiving side capability, compares the request size and the receiving side capability as shown in FIG. 4, and performs normal transmission according to the comparison result. or whether to perform reduced transmission or edited transmission.

When transmitting image data, the control unit 4 reads the document information stored in the image storage memory 3 and sends it to the line from the line control unit 8, but in the case of normal transmission, the flow shown in Fig. 5 is followed. In the case of reduced transmission, the flow shown in FIG. 6 is followed, and in the case of edited transmission, the flow shown in FIG. 3 is followed.

When the device shown in the figure is used as a receiving device, information received via the line control section 8 is stored in the memory 3 for storing flat images. If the stored information is to be output, the image information is read out from the image storage memory 3 and encoded/encoded.
After being decoded by the decoding unit 2, it is output from the recording output unit 11.

[Effects of the Invention] As described above in detail, according to the present invention, when there is a request to stop reduction printing, the sending side divides the sending original into units of size of the receiving side original and sends the original. , information can be transferred even when there is a request to stop reduced printing.

[Brief explanation of drawings]

FIG. 1 is a flowchart showing the principle of the method of the present invention, FIG. 2 is a diagram showing the relationship between the transmission request size and printable size, FIG. 3 is a flowchart showing an embodiment of the present invention, and FIG. 4 is a flowchart showing the present invention. Flowchart showing the overall operation of the invented method, FIG. 5 is a flowchart of normal transmission, FIG. 6 is a flowchart of reduced transmission, FIG. 7 is a diagram showing a transmission protocol, and FIG. 8 is a facsimile machine implementing the present invention. FIG. 2 is a block diagram showing an example of the configuration of the device. In FIG. 8, 1 is a document reading section, 2 is an encoding/decoding section, 3 is an image storage memory, 4 is a control section, 5 is an operator panel, 6 is a timer monitoring section, 7 is a telephone number registration section, 8 is a line control section, 9 is an automatic transmission section, ]O is an NCU circuit section, and 11 is a recording output section.

Claims (2)

[Claims] (1) When data is transferred between a sending facsimile machine and a receiving facsimile machine, the sending side first transmits the transmission capability to the receiving side (step 1), and then the receiving side transmits the receiving capability. (Step 2), and if the receiving side's paper size capabilities do not include a paper size larger than the paper size requested by the sending side, the sending side converts the transmitted original to the size of the receiving side original. A transmission method for a facsimile machine, characterized in that the document is divided into units and transmitted (step 3), and the receiving side prints the received original on multiple sheets at the same size (step 4). (2) If the paper size capacity of the receiving side does not include a paper size larger than the paper size requested by the sending side,
2. The method of transmitting a facsimile apparatus according to claim 1, wherein the transmitting side performs reduced transmission in response to a request from the receiving side.