JPH03117973A - Picture forming device - Google Patents

Abstract

PURPOSE:To reduce the margin of a recording sheet as much as possible by outputting the picture data of a received original while rotating it at 90 deg. when there is a fixed relationship among the main scanning direction width of the received original, sub scanning direction width of the received original and main scanning direction width of the recording sheet. CONSTITUTION:The main scanning width direction of the received original is defined as WS, the sub scanning direction width is defined as LS and the main scanning direction width of the recording sheet is defined as WR. Only when the relationship of WR>LS>WS is generated, the picture data of the original are recorded in a form that the data are rotated at 90 deg.. Accordingly, for example, when a received original (a) in an indefinite size and an original 1b in a definite size are recorded, for the received original 1a in the non-routine size, the WS is 210mm and the LS is 100mm. Then, out of the above mentioned rotating condition, the LS>WS is not satisfied. Accordingly, the data are recorded without being rotated at 90 deg.. On the other hand, for the received original 16, the WS is 210mm and the LS is 297mm. Accordingly, as long as the condition of WR>LS is established, the data are recorded while being rotated at 90 deg.. Thus, the margin of the recording sheet is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an image forming apparatus such as a facsimile or a printer.

In a conventional facsimile machine, when the received document size is smaller than the recording paper size, for example, as shown in FIG. 10, the received document (1) is A4. When the recording paper (2) is a standard size of A3, if it is a roll paper, the trailing edge is cut at the end of the image and no margin is created, but margins (3a) (3b) are created on both sides, which is wasted. Therefore, JP-A-62-11746
In No. 8, when two pages of the received original (1) fit on one recording paper (2) as shown in Figure 11, the received original (1) is rotated 90' and printed on one recording paper (2). 2), and when the width direction of the original is transmitted as the main scanning direction as shown in Figure 12, even if the size of the received original (1) is 172 or less than the size of the recording paper (2). For example, it has been proposed to output image data after changing the orientation of the image.

However, in this conventional method, the problem shown in Fig. 7 (a)
For example, if the horizontal (main scanning direction) width is 256 mm and 8
4 sizes, the vertical (sub-scanning direction) width is 270mm and B4
Since the received document (1) of irregular size smaller than the size of 364mff1 is more than 1/2 of the A3 recording paper (2), it will not rotate 90@ and will be recorded as shown in Figure 7 (B). become. Therefore, there is a margin (3a) on both sides and the rear edge.
(3b) (3c) occurs. Standard size recording paper (
If you use roll paper rather than cut paper, the trailing edge will be cut at the end of the received document, as shown in Figure (C), so there will be no margin (3c) at the trailing edge, but there will be margins on both sides. (3a) (3b) cannot be avoided, and if the width of the received document in the sub-scanning direction is not a standard size (i.e., A4
．． 85, etc.), the following problem occurs. That is, as shown in FIG. 8(A), among the two received originals (la) and (lb), the received original of irregular size (
If 1a) is included, both the received originals (la) and (lb) are rotated as shown in FIG.

The present invention has been developed in view of these points, and is applicable not only to cases where the received original size and recording paper size have a specific size relationship, but also to cases where the received original size and recording paper size are in any size relationship. To provide an image forming apparatus that always operates to minimize the margins on recording paper regardless of whether it is a regular or irregular shape.

Means for Solving the Problems The image forming apparatus of the present invention that achieves the above object has a main scanning direction width WS of a received document, a sub-width WS of the received document, and a width WS of the received document. means for rotating the image data of the received document by 90 degrees and outputting the image data of the received document when there is a relationship between the width LS in the scanning direction and the width WRO in the main scanning direction of the recording paper; The apparatus includes a detection means for detecting that data has been recorded on a recording paper, and a cutting means for cutting the recording paper based on the output of the detection means.

Further, as described in the second claim, the main scanning direction width W3 of the document on the transmitting side. Between the width LS in the sub-scanning direction of the sending document + the width WS in the main scanning direction of the receiving side recording paper W @ > L s
> W s A determination means for determining whether or not there is a relationship, and a determination result by the determination means W* > L s >
and transmitting means for transmitting image data of the document rotated by 90° when the document is rotated by 90 degrees.

Furthermore, as described in a third aspect, a first detection means for detecting the length of the margin in the sub-scanning direction of the received original, and a length LS' of the image area of the received original in the sub-scanning direction based on the output of the first detection means. and a calculation means for calculating the image data of the received original at 90 degrees when the width WS of the received original in the main scanning direction and the width LS of the recording paper in the main scanning direction are in the relationship W>LS'>Wl. a converting means for rotating and outputting; a means for outputting the image data of the received document without rotating it by 90 degrees when the above relationship is not met; and a means for recording the image data output from the means or the converting means on recording paper. , a second detecting means for detecting the end of recording, and a cutting means for cutting the recording paper based on the output of the second detecting means.

Furthermore, a detecting means for detecting the length in the sub-scanning direction of the margin part of the transmitted document, a calculation means for calculating the length LS' of the image area of the transmitted document in the sub-scanning direction based on the output of the detecting means, and a receiving side. a detection means for detecting the width W3 of the recording paper in the main scanning direction; and when the Ls'' is Wq>1.s'>Ws with respect to the WS and the width WS of the sending original in the main scanning direction, data of the sending original is detected. It can also be configured to include a transmitting means for transmitting after rotating it by 90 degrees.

According to the configuration as set forth in claim 1 above, there is a relationship of W R > L s > W s between the width WS in the main scanning direction of the received document, the width LS in the sub scanning direction, and the width WS1 in the main scanning direction of the recording paper. Only when this occurs, the image data of the original is recorded in a 90° rotated form, so for example, as shown in Figure 8 (a), a received original of irregular size (a) and a received original of standard size (1b) are recorded. When the received original (1a) of irregular size is Ws = 21
Since LS > Ws of the above rotation conditions is not satisfied at 0 ms and Ls = 100 mn+, the image is recorded without being rotated by 90°. On the other hand, the received original (1b) has a WS of 210 m.
Since m and L s = 297 mm, WS>L,
As long as , the image is rotated by 90° and recorded.

Next, as in the second aspect, the receiving side determines whether or not there is a relationship of W R > L s > W s between the transmitted original and the recording paper on the receiving side, and if there is such a relationship, the transmitted original is The image data is rotated by 90 degrees and transmitted. In this case, the receiving side simply receives and records this data, and the area is efficiently recorded on the recording paper.

Furthermore, according to the configuration as set forth in the third aspect, instead of the width of the received document in the sub-scanning direction, the length LS of the image area of the document is determined in the sub-scanning direction.
′ is used, it is possible to make a more substantive determination regarding the 90° rotation of image data. In other words, when determining based on the width L3 of the document in the sub-scanning direction, even though the width LS' of the document image area in the sub-scanning direction satisfies the above conditions due to the margin existing in the document, L does not satisfy the condition. In that case, even though it is desirable to record with a 90° rotation, the 90° rotation is not performed. However, if you use LS', you can record in the desired manner (90 m rotation), and it is even better. This is because records are made based on substantive judgment.

Furthermore, in the configuration as claimed in claim 4, W on the transmitting side.

>Ls''>W3 is determined, and when this condition is satisfied, the image data of the transmitted document is transmitted rotated by 90 degrees.

Apical “L” spot Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a block diagram of the facsimile apparatus of this embodiment, and (10) is a control section composed of a microcomputer. The control unit (10) includes an operation unit (11) having various operation keys, and a reading unit (11) that reads a document.
2) and a recording section (13) that records image data etc. on recording paper.
) and the control unit (1) to indicate that the image data has been recorded.
A cutting means (14) that cuts the recording paper in response to the detection by the detection means in 0), an image memory (15) that stores image data, etc., and a modem that modulates and demodulates the data to be transmitted and received. (16) and NCU (17), which switches between telephone and facsimile and connects to the telephone line.
) are connected to exchange various data and perform control.

The image memory (15) has an image storage area (15a) and an image conversion area (15b) as shown in the figure.

The image storage area (15a) is designed to store compressed image data. (1B) is a detection unit that detects the original size, recording paper size, etc.

Figure 2 shows the image storage area (f5a) and the decompression circuit (
19) and a bitmap (20). Here, the expansion circuit (1
9) is configured in the control unit (10), and the bitmap (2) is configured in the control unit (10).
o) is the image conversion area (15) of the image memory (15).
b). In the normal case, the image data is distributed in the horizontal direction of the bitmap (20) (i.e. 1, 2, 3...1
68o direction), but the control unit (10
) works, the vertical direction (i.e. 39
90001, ・16B1, 1, 3990002
．．・2.・3991680. -1680 (7) order).

In the facsimile machine of the first embodiment, the width of the received document in the main scanning direction is W3. If the width in the sub-scanning direction is L3+the width in the main scanning direction of the recording head is WIt, then WS>L.

> When the relationship is W3, rotate the data of the received original 900 times and record it so that there is no unnecessary margin on both sides,
On the other hand, if this relationship does not hold, recording is performed without rotating 90@. Of course, a means for detecting the trailing edge of the received document is provided and the recording paper is cut so as not to leave any unnecessary blank space at the trailing edge. Therefore, as shown in FIG. 7(A), for example, when receiving a B4 size, irregularly shaped received document (1) with a short width in the sub-scanning direction, using A3 size recording paper (roll paper), As shown in FIG. 4(D), the received original (1) is recorded in a 90° rotated form, and the recording paper is cut at the rear end in the sub-scanning direction. According to this, the margin at the rear edge can be avoided and the margin on both sides (3a)
(3b) can be made as small as possible.

Also, as shown in FIG. 8(a), it has the same width in the main scanning direction (WS) as the width in the main scanning direction of A4, but the width in the sub scanning direction (
The first received document (1a) whose length (L3) is shorter than the standard A4 size
, when the second A4 standard received document (1b) is received in succession and is received on A3 recording paper (2), the second received document (1b) is
1b) satisfies WR > L 3 >'w, so
As shown in Figure 8 (c), it is recorded with <90° rotation, but the first
The original (1a) does not satisfy this condition and is therefore recorded without being rotated by 90 degrees. As a result, the side margins (3a) (3b) are reduced compared to the conventional example shown in the same figure, and efficient recording on the recording paper (2) is achieved accordingly.

This first embodiment uses the length of the received document in the sub-scanning direction, but in the second embodiment shown in FIG.
Find the length (E) of the margin (4) in the sub-scanning direction, and calculate this (E
) is used to determine the length Ls'' of the image area of the original (1) in the sub-scanning direction, and this LS' is used in place of Li2 to determine whether or not to rotate by 90 degrees. Therefore, in this case Whether it rotates 90 degrees or not is WR>LS'>
The decision will be made based on the WS conditions. In this way, the margin (4) of the original (1) is removed (cut), so that more substantial recording can be achieved as described above. Note that the margin (4) may exist not only at the rear edge of the document (1), but also at the front edge, or at both the front and rear edges, and in these cases, the margin area is also The length (E) in the sub-scanning direction can be determined. The length (E) of the margin portion (4) in the sub-scanning direction can be easily detected from the memory in which the image data of the document is stored. Also, to find Ls'' from this (E), if the WS of the original (1) is a regular shape, its length in the sub-scanning direction L3
Since it is also determined, L.

-E=LS'. In the case of FIG. 9(A), the image is recorded without being rotated, as in FIG. 9(B), and in the case of FIG. 9(C), it is recorded with <90° rotation as in FIG. 9(D).

In addition, the above-mentioned 1. In both of the second embodiments, a facsimile machine is used as the receiving side, but as will be described later, the image data of the transmitted document may be rotated by 90 degrees and sent. In order to rotate the received document by 90'' on the receiving side as in the above embodiment, the receiving side must have a memory, a bitmap for rotation by 90'', etc. Although there are many devices that do not have such a 90° rotation change function, such facsimile machines can rotate the data of the received document by 90° as necessary.
It is not possible to perform a process of rotating the recording paper to efficiently record on the area of the recording paper. However, even in this case, the sending side must determine in advance whether or not to rotate the image by 90 degrees before sending it.
If the signal is rotated by 0 degrees and received, efficient recording can be achieved by the receiving side simply receiving and recording the signal.

Next, flowcharts for each embodiment will be explained according to FIGS. 3 to 6. FIG. 3 is a flowchart of the receiving facsimile machine when performing the process as shown in FIG. 7(d). First, in step (1110), it is determined whether memory reception is to be performed. When receiving memory data, please press the operation section (11) in advance.
Since the signal is inputted to the control unit by the key, the determination at step (+110) is made based on the presence or absence of the signal input manually from this key. Here, if memory reception is not specified, the process advances to step (1160) to decompress the received data, and then prints it out to be recorded on recording paper in step (1170), and ends the flow. If it is determined in the above step (10) that memory reception has been performed, the received data is transferred to the image memory (15) in the next step (1120).
Store it once. After that, step (+130
) to determine whether or not to rotate by 90°. In this case, the determination is made as follows: width WS in the main scanning direction, width WS in the sub-scanning direction of the received original as described above. The determination is made based on whether the width W of the recording paper in the main scanning direction is in the relationship WR>Ls>WS. Note that these values are determined by the detection unit (
18) to the control unit (10). Here, if the relationship W*>Ls>Ws does not hold, the process advances to step (1160) to decompress the received data, and prints it out in step (1170). When there is a relationship of WS > L, > WS, step (
140), the received data is decompressed, and then step (#5
Step 0) creates a bitmap, outputs the 90° rotated data, and prints it out in the next step (170).

Next, FIG. 4 is a flowchart of a facsimile machine configured to make a judgment such as 90@ rotation on the sending side facsimile machine, and output the 90@ rotation if deemed necessary. In the figure, in step (1100), image data of the original is read.
The image data read in step 105) is compressed. Subsequently, in step (+1110), it is determined whether memory transmission is to be performed. In this case, it is assumed that the data on which the judgment is based has been manually inputted in advance.

If memory transmission is not to be performed here, the process proceeds to step (1145) to establish a line connection, and the transmission is started in step (1150). If the above step (111110) is memory transmission, the compressed image data is stored in the image memory (15) in step (+1115), and the line is connected in the next step (+1120). It125) rotates the image data of the transmitted document at 90°.
It is determined whether or not to rotate, but this determination is to determine whether or not there is a relationship of WR>L3>W3, as in the case of FIG. 3 described above. These WS, L.

, WS data is assumed to have been input to the transmitting side control unit (10) before step (1125). If the judgment in this step (1125) is No (that is, if the rotation is not performed by 90"), proceed to step (1150) and start transmission. If the judgment is Yes (i.e., if the rotation is made by 90"), proceed to step ([30]). Proceed to expand the transmitted data, then create a bitmap in step (1135) and rotate the image data by 90", compress the output rotated by 90" in the next step (+1140), and then in step (1135)
150) to start transmission.

Next, the operational flow of the facsimile machine that performs the processing of the second embodiment is shown in FIGS. 5 and 6, respectively, where FIG. 5 is a flowchart on the receiving side, and FIG. 6 is a flowchart on the sending side. This is a flowchart.

These flowcharts are similar to the flowcharts related to the first embodiment shown in FIGS. 3 and 4, and include a step (125) of detecting a margin (4) of a document (1);
(1123) are added, and the determination of whether or not to rotate by 90" in steps (1130) and (11125) is made based on WS>LS'>WS (Ls is replaced by LS'). Figure 3 except that

This is the same flowchart as in FIG.

However, steps (11120) to (1140) in FIG.
), the blank area is detected before connecting the line, and 9
Alternatively, the image data rotated by 0° may be stored in the image memory in advance, and after the line is connected, either method may be selected and transmitted.

As explained above, according to the present invention, it is possible to record the original image on the recording paper while minimizing the margin, so that the consumption of the recording paper can be made economical. .

In particular, according to the structure of the first claim, in addition to the conventional condition of WS>WS, the conditions are set as WR>L and >WS, so even if WS>WS is satisfied, L s <
In special cases such as Ws, the original image data is 90°
Since it is not rotated, the problem of large margins on the recording paper does not occur.

Furthermore, as in the second claim, such WR>L,>WS
If the sending side determines whether there is a relationship, and if there is a relationship, the image data of the transmitted document is rotated 90 degrees and sent, the image forming device on the receiving side will simply receive and record it as usual. This alone can improve the area utilization efficiency of recording paper. This is particularly effective when the image forming apparatus on the receiving side does not have a function of rotating image data by 90 degrees and recording it.

Furthermore, as in the third claim, regarding the above 90° rotation condition, L
If the length LS' of the image area of the document in the sub-scanning direction is used instead of 3, there may be cases where L is not rotated by 90 degrees, but Ls'' is rotated by 90 degrees. Because it can be done.

Furthermore, if this is done on the transmitting side as in the fourth aspect, in addition to the above advantages, it is possible to enjoy the same effects as the configuration in the second aspect.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an image forming apparatus embodying the present invention, and FIG. 2 is a block diagram of its 90" rotation conversion means.
FIG. 3 is a flowchart showing the operation at the time of reception in the first embodiment, FIG. 4 is a flowchart showing the operation at the time of transmission in the first embodiment, and FIG. 5 is a flowchart showing the operation at the time of reception in the second embodiment. , FIG. 6 is a flowchart showing the operation at the time of transmission in the second embodiment, FIGS. 7 and 8 are diagrams showing the relationship between the received original and the recording paper and the recording form thereof in the first embodiment together with the conventional example, and FIG. FIG. 9 is a diagram showing the relationship between the received original and the recording paper and the recording form thereof in the second embodiment. FIG. 10, FIG. 11, and FIG. 12 are all diagrams showing the relationship between a document and recording paper in a conventional example. (1)--One manuscript, (2)・-Recording paper, (10)・-
・Control unit. (14)--1. Cutting means, (15)--Image memory. (18)--Detection unit, (20)-Bitmap. (21) -.-90° rotation conversion means.

Claims (4)

[Claims] (1) Between the main scanning direction width W_S of the received original, the sub-scanning direction width L_S of the received original, and the main scanning direction width W_R of the recording paper
means for rotating the image data of the received document by 90 degrees and outputting it when there is a relationship of _R>L_S>W_S; a detection means for detecting that the image data of the received document has been recorded on recording paper; An image forming apparatus comprising: a cutting unit that cuts the recording paper based on an output of the unit. (2) Whether there is a relationship of W_R>L_S>W_S between the width W_S in the main scanning direction of the document on the sending side, the width L_S in the sub-scanning direction of the transmitted document, and the width W_R in the main scanning direction of the recording paper on the receiving side. a discriminating means for discriminating whether the document is 90% of the original when the discriminating result by the discriminating means is W_R>L_S>W_S;
An image forming apparatus comprising: transmitting means for transmitting rotated image data. (3) a first detection means for detecting the length of the blank area in the sub-scanning direction in the received document; and a calculation means for calculating the length L_S' of the image area of the received document in the sub-scanning direction based on the output of the first detection means; The width W_S of the received document in the main scanning direction, the width W_R of the recording paper in the main scanning direction, and the above L_S' are W_R>L_S.
'>W_S, the image data of the received document is
a converting means for rotating the image data by 0 degrees and outputting it; a means for outputting the image data of the received document without rotating it by 90 degrees when the above relationship is not met; and recording the image data output from the means or the converting means on recording paper. An image forming apparatus comprising: a second detecting means for detecting the recording end; and a cutting means for cutting the recording paper based on the output of the second detecting means. (4) a detection means for detecting the length of a margin in the sub-scanning direction of the transmitted document; and a calculation means for calculating the length L_S' of the image area of the transmitted document in the sub-scanning direction based on the output of the detection means;
a detection means for detecting a width W_R in the main scanning direction of the recording paper on the receiving side; An image forming apparatus comprising: transmitting means for rotating data by 90 degrees and transmitting the data.