JP2006121628A - Image processing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform appropriate roll sheet cut, according to size classification of a manuscript for reading. <P>SOLUTION: An image reading portion 15b at a manuscript reading mechanism 15 reads an image of a manuscript set at a manuscript set portion 15a. A CPU 11 distinguishes whether the manuscript is an A4, A3, A2, A1, or A0 regular size manuscript or not, based on the read image. As the result of the distinction, when the manuscript corresponds to anyone of regular size manuscripts, the CPU 11 controls a printing mechanism 16 so as to perform roll sheet cut according to a paper finishing dimension corresponding to size classification of the manuscript. Additionally, when the manuscript does not correspond to anyone of regular size manuscripts, the CPU 11 performs roll sheet cut according to the length of a side perpendicular to one side of the manuscript, using a roll sheet of which the length of the short side corresponds to the one side of the manuscript. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an image processing apparatus such as a digital copying machine.

  2. Description of the Related Art Conventionally, in an apparatus that reads an image of a document and prints it on paper, such as a digital copying machine, there is a type of apparatus that uses roll paper as paper used for printing.

The paper feed mechanism of the digital copying machine using roll paper is a fixed-size original, here, a paper according to any of the paper finishing dimensions A0 size, A1 size, A2 size,. Roll paper cut to match the size of the paper, so-called fixed cut, and roll paper cut to match the length of the non-fixed size document in the printing direction, so-called sync cut (for example, Patent Document 1). reference).
JP 2001-255706 A

  In the above-described digital copying machine, the user operates the operation panel provided in the apparatus to determine whether the type of the document to be read is a fixed-size original or a non-standard-size original. Specify before starting to read.

  When the document type is designated to be a fixed-size document as described above, the paper feed mechanism is a document of a plurality of types of paper finishing dimensions (A0 size, A1 size, A2 size,...). If the size of the original is designated as a non-size original, the sync cut is performed according to the length of the read image in the print direction.

  Therefore, the user needs to determine in advance whether the type of document to be read is a fixed-size document or a non-size document.

  If the user incorrectly determines the type of document to be read and specifies that the document type is a fixed size document even though the document is a non-size document, the size of the document The roll paper may be cut with a different size.

  Specifically, the document to be read is, for example, an A1 width document which is a kind of non-sizing document, that is, the length of the side perpendicular to the document scanning direction is A1 size short side length (594 mm), and When the original is different in length from the long side of the A1 size in the original scanning direction and the type of the original to be read is designated as a fixed-size original, Regardless of the length of the side along the document scanning direction, A1 width roll paper, that is, roll paper having a short side length of A1 size, is a printing target. On the other hand, the roll paper is cut according to the long side length of A1 size.

In such a case, for example, as shown in FIG. 9, the side length along the document scanning direction of the A1 width document 31 whose side length W ₅ along the document scanning direction is 594 mm is to be read. When L ₆ is shorter than the long side length of A1 size (841 millimeters), as shown in FIG. 10, the A1 width roll whose side length W ₆ along the printing direction is 594 millimeters (= W ₅ ) The cut length L ₇ for the paper 32 is 841 millimeters. This length L ₇ becomes longer than the same length L ₈ (= L ₆ ) as the side of the original 31 along the original scan direction on the roll paper 32, so that it is wasted in the roll paper after cutting and printing. Margins will occur.

  FIG. 9 is a diagram showing an example (part 1) of a document set on a conventional digital copying machine. FIG. 10 is a diagram showing an example (part 1) of roll paper cutting by a conventional digital copying machine. FIG. 11 is a diagram showing an example (part 2) of a document set on a conventional digital copying machine. FIG. 12 is a diagram showing an example (part 2) of roll paper cutting by a conventional digital copying machine.

Further, for example, as shown in FIG. 11, the side of the A1 width original 33 having the side length W ₇ (= W ₅ ) along the original scanning direction of 594 millimeters to be read, along the original scanning direction. If the length L ₉ is longer than the long side length of the A1 size paper, as shown in FIG. 12, the length W ₆ 594 mm sides along the printing direction (= W ₅₎ is A1 width roll paper 32 The cut length L ₁₁ is 841 millimeters (= L ₇ ), and this length L ₁₁ is the same length L ₁₀ (= L ₉ ) as the side along the document scanning direction of the document 33 on the roll paper 32. Since it becomes shorter, the part of the A1 width original 33 is not included in the cut roll paper.

  In addition, when the original to be read is a fixed-size original and the type of the original to be read is specified to be a non-fixed-size original, the original to be read is scanned along the original scan direction. If there is an error between the original size recognized by image reading and the actual original size, the roll paper will be cut to the standard size. It will be slightly different.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an image processing apparatus that can perform appropriate roll paper cutting according to the type of size of a document to be read.

  That is, in the image processing apparatus according to the present invention, the length of the side corresponding to the long side of the document corresponds to the long side length of one kind of paper finishing dimension, and the length of the side corresponding to the short side of the document. , Corresponding to the short side length paired with the long side length, the short side length is the first side of the document along the scanning direction and the first side perpendicular to the first side. For a roll paper corresponding to one of the lengths of the two sides, a fixed length corresponding to the fixed length corresponding to the length of the short side of the corresponding roll paper as described above in the one kind of dimension described above. If the paper is cut out according to the above and the correspondence condition between the length of each side of the document and the paper finish dimension is not satisfied, the length of the short side corresponds to the length of the second side of the document. Control is performed so as to cut out according to the length of one side.

  In the image processing apparatus according to the present invention, when the long side and the short side length of the document correspond to the long side length and the short side length in one kind of paper finishing dimension, respectively, the short side length is the length of the document. One of the roll papers corresponding to the length of one side or the other side is paired with the side length corresponding to the length of the short side of the roll paper out of the long side length and the short side length in the one kind of dimension described above. When cutting is performed according to the side length and the correspondence condition between the length of each side of the document and the paper finish dimension is not satisfied, the length of the short side is equal to the length of one side of the document. Since cutting is performed according to the length of the other side, appropriate roll paper cutting can be performed according to the type of document size.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram illustrating a configuration example of a digital copying machine according to an embodiment of the present invention.

  As shown in FIG. 1, a digital copying machine according to an embodiment of the present invention includes a CPU 11 that controls processing operations of the entire apparatus, an input unit 12 that receives various input operations, and a ROM 13 that stores system programs for various processing operations. Is provided.

  The CPU 11 controls the operation of each unit in accordance with a system program activated in response to an input operation signal from the input unit 12. The digital copying machine shown in FIG. 1 further includes a memory 14 that temporarily stores various control data, a document reading mechanism 15 that reads an image of a document, and a printing mechanism 16.

  The document reading mechanism 15 includes a document setting unit 15a that sets (places) a document, and an image reading unit 15b that reads an image of the document placed on the document setting unit 15a.

  CPU 11 is a fixed size table that stores the long side length and short side length, which are the fixed lengths of A0 size, A1 size, A2 size, A3 size, and A4 size, which are paper finishing dimensions, in association with each type of size. Remember. FIG. 2 is a table showing an example of a fixed size table stored in the CPU 11 of the digital copying machine according to the embodiment of the present invention. The fixed size table is not limited to the CPU 11 and may be stored in the ROM 13, for example.

  The document set on the document setting unit 15a has a first side along the reading scanning direction (document scanning direction) by the image reading unit 15b, and a second side orthogonal to the first side. The length of the second side of the original is A0 size short side length (841 mm), A1 size short side length (594 mm), A2 size short side length (420 mm), A3 size short side length (297 millimeters) and A4 size short side length (210 millimeters). However, when the length of the second side of the document is the short side length of A4 size, the length of the first side of the document is the long side length of A4 size.

  The printing mechanism 16 includes a roll paper setting unit 16a, a conveyance unit 16b, a cutting unit 16c, and a printing unit 16d. The roll paper setting unit 16a sets a roll paper that is a printing paper for an original image. The transport unit 16b transports the roll paper set in the roll paper set unit 16a. The cut unit 16c cuts out (cuts) the roll paper conveyed by the conveyance unit 16b. The printing unit 16d prints the image to be printed on the roll paper without any shortage.

  The printing mechanism 16 may be configured to perform printing by the printing unit 16d on the cut roll paper after the roll paper is cut by the cutting unit 16c. The configuration may be such that after printing is performed on the paper by the printing unit 16d, the cut unit 16c cuts out the roll paper on which the printing has been performed.

  A plurality of types of roll paper can be individually set in the roll paper setting unit 16a. Specifically, the roll paper setting unit 16a can individually set A0 width roll paper, A1 width roll paper, A2 width roll paper, and A3 width roll paper. The roll paper setting unit 16a may be configured to be able to set only one type of roll paper.

  The A0 width roll paper is roll paper having a short side length of A0 size. The length of the short side of the A1 width roll paper is the short side length of A1 size. The length of the short side of the A2 width roll paper is the short side length of A2. The short side length of the A3 width roll paper is the short side length of A3 size.

  Next, the processing operation of the digital copying machine according to the embodiment of the present invention will be described.

  FIG. 3 is a flowchart showing an example of a processing operation related to document size determination by the digital copying machine according to the embodiment of the present invention.

  First, the image reading unit 15b of the document reading mechanism 15 reads an image of the document set on the document setting unit 15a, and outputs the image data generated by the reading to the memory 14 (step S1). The size of the figure represented by the image data is the same as the size of the document. It is assumed that one side of the document is along the reading scanning direction by the image reading unit 15b. Further, the output image data includes information indicating sides having the same positional relationship as sides along the reading scanning direction by the image reading unit 15b in the document among the sides of the graphic represented by the image data.

  The CPU 11 determines whether or not the size of the document set on the document setting unit 15a is A4 size based on the image data input to the memory 14 (step S2). Specifically, the CPU 11 inputs the image data input to the memory 14 and has the same positional relationship as the side along the reading operation direction of the document among the sides of the graphic represented by the image data. By detecting the sides and the lengths of the sides orthogonal to the sides, and comparing the lengths and information shown in the sizing size table, the lengths of the sides of the document and the respective sizes of the A4 size are determined. Whether or not the correspondence relationship between the lengths is satisfied, that is, the length of one of the sides of the document matches or approximates the short side length (210 mm) of the A4 size, and the length of the other side is It is determined whether or not it matches or approximates the long side length of A4 size (297 millimeters).

  Here, among the sides of the document, the length of the side along the direction orthogonal to the reading scanning direction may be detected using a sensor (not shown).

  Further, the CPU 11 determines whether or not the correspondence between the length of each side of the document and each fixed length of A4 size is satisfied, for example, the length of one side of the figure represented by the image read from the document is A4 size. For example, a value within 3 millimeters before and after the short side length (207 to 213 millimeters), and a length of the side perpendicular to one side described above is a value within 3 millimeters before and after the long side length of the A4 size (294, for example). ˜300 mm), it is determined that the length of one side of the document and the length of the side perpendicular to the side approximate to the short side length of A4 size and the long side length of A4 size, respectively. Thereafter, if the length of each side of the document matches or approximates the long side length and the short side length of any type of paper processing dimension, the length of each side of the document is set to any type. It will be explained that it corresponds to the long side length and the short side length of the paper processing dimensions.

  If it is determined as a result of the processing in step S2 that the length of each side of the document corresponds to the short side length of A4 size and the long side length of A4 size, the CPU 11 determines that the document is an A4 fixed size document. That is, it is determined that the document has a long side having an A4 size long side length and a short side having an A4 size short side length (step S3).

  On the other hand, if “NO” is determined as a result of the process in step S2, the CPU 11 determines that the size of the document set in the document setting unit 15a is A3 size based on the image data input to the memory 14. It is discriminate | determined whether it is (step S4). The process of step S4 is a process of determining whether or not the length of each side of the document subjected to the reading process in step S1 described above corresponds to the long side length and the short side length of A3 size. Therefore, the details are similar to the details of the processing in step S2. In this case, “A4 size” in the description of the processing in step S2 may be read as “A3 size”.

  If it is determined as a result of the processing in step S4 that the length of each side of the document corresponds to the short side length of A3 size and the long side length of A3 size, the CPU 11 determines that the document is an A3 fixed-size document, Then, it is determined that the original has a long side having a long side length of A3 size and a short side having a short side length of A3 size (step S5).

  On the other hand, if “NO” is determined as a result of the process of step S4, the CPU 11 determines that the size of the document set in the document setting unit 15a is A2 size based on the image data input to the memory 14. It is discriminate | determined whether it is (step S6). The process of step S6 is a process of determining whether or not the length of each side of the document subjected to the reading process in step S1 described above corresponds to the long side length and the short side length of A2 size. Therefore, the details are similar to the details of the processing in step S2. In this case, “A4 size” in the description of the process of step S2 may be read as “A2 size”.

  As a result of the processing in step S6, when it is determined that the length of each side of the document corresponds to the short side length of A2 size and the long side length of A2 size, the CPU 11 determines that the document is an A2 fixed size document. That is, it is determined that the document has a long side having an A2 size long side length and a short side having an A2 size short side length (step S7).

  On the other hand, if “NO” is determined as a result of the process in step S6, the CPU 11 determines that the size of the document set in the document setting unit 15a is A1 size based on the image data input to the memory 14. It is discriminate | determined whether it is (step S8). The process of step S8 is a process of determining whether or not the length of each side of the document subjected to the reading process in step S1 described above corresponds to the long side length and the short side length of A1 size. Therefore, the details are similar to the details of the processing in step S2. In this case, “A4 size” in the description of the processing in step S2 may be read as “A1 size”.

  As a result of the processing in step S8, when it is determined that the length of each side of the document corresponds to the short side length of A1 size and the long side length of A1 size, the CPU 11 determines that the document is an A1 fixed size document. That is, it is determined that the document has a long side having a long side length of A1 and a short side having a short side length of A1 (step S9).

  On the other hand, if “NO” is determined as a result of the process of step S8, the CPU 11 determines that the size of the document set in the document setting unit 15a is A0 size based on the image data input to the memory 14. It is discriminate | determined whether it is (step S10). The process of step S10 is a process of determining whether or not the length of each side of the document subjected to the reading process in step S1 described above corresponds to the long side length and the short side length of A0 size. Therefore, the details are similar to the details of the processing in step S2. In this case, “A4 size” in the description of the process of step S2 may be read as “A0 size”.

  As a result of the processing in step S10, when it is determined that the length of each side of the document corresponds to the short side length of A0 size and the long side length of A0 size, the CPU 11 determines that the document is an A0 fixed size document. That is, it is determined that the document has a long side having a long side length of A0 size and a short side having a short side length of A0 size (step S11).

  On the other hand, if “NO” is determined as a result of the process of step S10, the CPU 11 determines that the document is a non-size document (step S12). The non-sizing document refers to a document other than the above-described A4 sizing document, A3 sizing document, A2 sizing document, A1 sizing document, and A0 sizing document.

  After the processing in steps S3, S5, S7, S9, and S11, the CPU 11 follows the length of the long side and the short side of the paper finishing dimension corresponding to the size of the fixed-size original of the type determined by the processing. Perform roll paper cutting, so-called fixed-size cutting.

  FIG. 4 is a view showing an example (part 1) of an original set on the original reading mechanism 15 of the digital copying machine according to the embodiment of the present invention.

As shown in FIG. 4, among the sides of the A1 fixed-size original 21 to be read, the side length L ₁ along the original scan direction is the long side length of A1 size (841 mm), and the original scan The side length W ₁ along the direction orthogonal to the direction is the short side length (594 millimeters) of A1 size. The values of the lengths L ₁ and W ₁ are detected by the process at step S1.

  Next, an example of fixed-size cutting of roll paper will be described. In this example, a description will be given of a fixed-size cut when the original set on the original reading mechanism 15 is an A1 low-size original 21 and the original to be read is determined to be an A1 fixed-size original by the process of step S9. .

  FIG. 5 is a view showing an example of a fixed-size cut of roll paper by the digital copying machine according to the embodiment of the present invention.

Since the length (W ₁ ) of the A1 fixed-size original 21 (see FIG. 4) along the direction orthogonal to the original scanning direction is the short side length of A1, the CPU 11 cuts the cut portion 16c of the printing mechanism 16. However, among the plurality of types of roll paper set in the roll paper setting unit 16a, the length of the short side, that is, the length of the side orthogonal to the printing direction (roll paper conveyance direction) is A1 size long side length (841 mm) with respect to the A1 width roll paper 22 (see FIG. 5) corresponding to the length W ₁ (594 mm) of the side along the direction orthogonal to the document scanning direction. ) Is controlled to be cut out according to. That is, the length W ₂ (= W ₁ ) of one side of the cut roll paper corresponds to the short side length of A1 size, and the length L ₂ (= L ₁ ) of the side orthogonal to this side is A1 size. Corresponds to the long side length.

  Next, an example of synchronized cut of roll paper will be described. This sync cut is a roll paper cut when it is determined that the document is a non-size document by the process of step S12.

  FIG. 6 is a diagram showing an example of a non-sizing original set on the original reading mechanism 15 of the digital copying machine according to the embodiment of the present invention.

Shown in FIG. 6, the non-sizing the document to be read is the A1 width manuscript 23 is a side along a direction orthogonal to the document scan direction length W ₃ is a short side length of A1 size paper (594 mm) . The length L ₃ of the side along the document scanning direction of the A1 width original 23 does not correspond to the long side length of the A1 size. The values of the lengths L ₃ and W ₃ are detected by the process at step S1.

  FIG. 7 is a diagram illustrating an example of synchronized cut of roll paper by the digital copying machine according to the embodiment of the present invention. In this example, a description will be given of roll paper cutting when the original set on the original reading mechanism 15 is an A1 width original 23.

A1 of each side of the width document 23 (see FIG. 6), the length W ₃ of the sides along the direction orthogonal to the document scan direction is shorter side length of the A1 size paper, CPU 11 is cut printing mechanism 16 Of the plurality of types of roll paper set in the roll paper setting unit 16a, the portion 16c has a short side length W ₃ along the direction perpendicular to the original scan direction of the A1 width original 23. and for the corresponding paper roll in which A1 width roll paper 22 (see FIG. 7), the A1 width document 23 is controlled so as to perform the cut according to the length L ₃ of the sides along the document scan direction. That is, the length W ₂ of one side of the cut roll paper corresponds to the shorter side length of the A1 size paper, the length L ₄ of a side orthogonal to the one side corresponds to the length L ₃ of A1 width document 23.

  As described above, the digital copying machine according to the embodiment of the present invention, if the size of the document to be scanned corresponds to any one of a plurality of predetermined paper finishing dimensions, If a fixed-size cut, which is a roll paper cut that matches this dimension, is performed and the size of the document to be scanned does not correspond to the paper finishing dimensions of the type described above, a roll paper cut according to the length of one side of the document Since a certain sync cut is performed, it is possible to perform an appropriate roll paper cut according to the type of the document without any particular input operation by the user.

  Next, a modified example of the fixed-size cut of roll paper will be described. Here, a description will be given of a modified example of the fixed-size cut when it is determined that the document is an A1 fixed-size document by the process of step S9.

  FIG. 8 is a view showing a modified example of the fixed-size cut of the roll paper by the digital copying machine according to the embodiment of the present invention.

In this example, the document to be read is the A1 fixed-size document 21 (see FIG. 4). In the sizing cut described with reference to FIGS. 4 and 5, the sizing cut is performed on the A1 width roll paper 22 after the A1 sizing document 21 is scanned. In this modification, the A1 sizing document 21 is scanned. After scanning, a fixed size cut is performed on the A0 width roll paper 24 (see FIG. 8). The length W ₄ of the side along the direction orthogonal to the printing direction of the A0 width roll paper 24 is the short side length (841 millimeters) of A0 size.

First, based on the image data input to the memory 14, the CPU 11 has a side whose length L ₁ along the original scanning direction of the A1 fixed-size original 21 is perpendicular to the original scanning direction. it is determined whether the or longer than the length W _1.

As a result of this determination, when the length L ₁ is longer than the length W ₁ , that is, when the side of the A1 fixed-size original 21 along the original scanning direction is the long side of the A1 fixed-size original 21 The CPU 11 determines that the cut portion 16c of the printing mechanism 16 has a short side length, that is, a length of a side perpendicular to the printing direction, of the plurality of types of roll paper set in the roll paper setting unit 16a. For the A0 width roll paper 24, which is the roll paper corresponding to the side length L ₁ (841 millimeters) along the original scanning direction of the fixed-size original 21, the short side length of A1 size (594 millimeters) was followed. Control to cut out. That is, the length W ₄ of one side of the cut roll paper corresponds to the long side length of A1 size, and the length L ₅ of the side orthogonal to the one side corresponds to the short side length of A1 size.

  By performing such processing, when the original to be scanned is the A1 fixed-size original 21, the roll paper to be printed is not limited to the A1 width roll paper 22, but may vary depending on the setting direction with respect to the original reading mechanism 15. Therefore, the uneven consumption of a single type of roll paper can be prevented. The document to be scanned is not limited to the A1 fixed-size document 21, and the length of the side along the document scanning direction is the length of the short side of the roll paper set in the roll paper setting unit 16a. The same effect can be obtained even for a sizing document corresponding to the long side length of the paper finishing dimension defined as follows, here, an A2 sizing document, an A3 sizing document, and an A4 sizing document.

  The digital copying machine according to the embodiment of the present invention has a function of enlarging or reducing an original image read by the original reading mechanism 15 and printing an image obtained by the enlargement / reduction on a roll paper by the printing mechanism 16. .

  Here, when the image is enlarged / reduced according to an arbitrary magnification, even if the set original is a fixed-size original, each side of the figure represented by the output target image input to the memory 14 is May not correspond to paper finish dimensions.

  In such a case, as described above, the size of the image input to the memory 14 is detected to determine whether or not the original is a fixed-size original. Regardless of whether the original is a fixed-size original or not, only the synchro cut is used as the cutting method.

  In such a case, a roll paper cut according to the length of the other side of the figure is performed on the roll paper having a short side length equal to or longer than the length of one side of the figure represented by the output target image. Although it is conceivable to perform a certain sync cut, the high accuracy of the roll paper cut, which is an advantage of the fixed-size cut, cannot be exhibited.

  In the following, a process from determination of the document size type to roll paper cut when the image of the document is enlarged / reduced in the digital copying machine according to the embodiment of the present invention will be described.

  Specifically, the image reading unit 15b reads the original image set on the original setting unit 15a, and when the input unit 12 receives an operation for enlargement / reduction at an arbitrary magnification, The reading mechanism 15 performs enlargement / reduction processing according to the magnification described above on the image data obtained by the reading, and outputs the image data to the memory 14.

  The CPU 11 performs the enlargement / reduction processing on the image data input to the memory 14 by the reciprocal of the magnification described above, and sets the long side and the short side length of the figure represented by the image data obtained by this processing, respectively. By detecting, the length of the long side and the short side of the document set on the document setting unit 15a is detected.

  The CPU 11 performs the processing from step S2 onward based on the lengths of the long side and the short side detected as described above, whereby the document size type is a fixed-size document or a non-size document. Determine if it exists.

  As a result of the determination, if it is determined that the document size type is a fixed-size document, the CPU 11 uses the image data input from the document reading mechanism 15 to the memory 14, that is, the image data after enlargement / reduction. The first sizing length and figure having a length longer than the long side of the figure by collating the long side and short side length of the figure to be represented and the information shown in the sizing size table The type of the paper finishing dimension in which the second fixed length having a length equal to or longer than the short side is defined is detected.

  The type of dimension detected here is a paper finishing dimension corresponding to the length of the short side of the roll paper set in the roll paper setting unit 16a, either the first fixed length or the second fixed length, Here, it is one of A0 size, A1 size, A2 size, and A3 size.

  Then, the CPU 11 determines that the cut portion 16c of the printing mechanism 16 has the short side length, that is, the length of the side perpendicular to the printing direction, among the plurality of types of roll paper set in the roll paper setting unit 16a. Control is performed so that the roll paper corresponding to the first fixed length is cut out according to the second fixed length.

  In addition, after detecting the dimensions having the first and second fixed lengths described above, the CPU 11 causes the cut portion 16c of the printing mechanism 16 to select the short paper among the plural types of roll paper set in the roll paper setting portion 16a. You may control to perform cutting according to the 1st fixed length with respect to the roll paper whose side length corresponds to the 2nd fixed length.

  By performing such control, even if an original image is read and the image is enlarged or reduced, if the original set on the roll paper setting unit 16a is a fixed-size original, the fixed-size for the roll paper is used. Since cutting can be performed, the accuracy of roll paper cutting can be maintained.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be omitted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

1 is a block diagram showing a configuration example of a digital copying machine according to an embodiment of the present invention. FIG. 3 is a table showing an example of a fixed size table stored in the CPU of the digital copying machine according to the embodiment of the present invention. 6 is a flowchart showing an example of processing operation related to determination of document size by the digital copying machine according to the embodiment of the present invention. FIG. 3 is a diagram showing an example of a fixed-size original set on the original reading mechanism of the digital copying machine according to the embodiment of the present invention. The figure which shows an example of the fixed-size cut of roll paper by the digital copying machine according to embodiment of this invention. FIG. 4 is a diagram showing an example of a non-sizing original set on the original reading mechanism of the digital copying machine according to the embodiment of the present invention. FIG. 3 is a diagram illustrating an example of synchronized cut of roll paper by a digital copying machine according to an embodiment of the present invention. The figure which shows the modification of the fixed-size cut of roll paper by the digital copying machine according to embodiment of this invention. FIG. 6 is a diagram showing an example (part 1) of a document set on a conventional digital copying machine. FIG. 6 is a diagram illustrating an example (part 1) of roll paper cutting by a conventional digital copying machine. FIG. 6 is a diagram showing an example (part 2) of a document set on a conventional digital copying machine. FIG. 6 is a diagram showing an example (No. 2) of roll paper cut by a conventional digital copying machine.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... CPU, 12 ... Input part, 13 ... ROM, 14 ... Memory, 15 ... Original reading mechanism, 15a ... Original setting part, 15b ... Image reading part, 16 ... Printing mechanism, 16a ... Roll paper setting part, 16b ... Conveyance , 16c ... cut section, 16d ... printing section, 21 ... A1 fixed original, 22, 32 ... A1 width roll paper, 23, 31, 33 ... A1 width original, 24 ... A0 width roll paper.

Claims (7)

A conveying means for conveying roll paper corresponding to the short side length of the paper finishing dimension in which the length of the short side defines a predetermined long side length and a fixed length of the short side length;
The length of the second side perpendicular to the first side along the scanning direction corresponds to the short side length of the predetermined type of dimension, or the length of the second side is the length of the second side. Corresponding to the short side length of the second paper finishing dimension, which is a dimension that defines the short length of the fixed length of the determined dimensions as the long side length, the length of the first side is the second side length. Detecting means for detecting the lengths of the first side and the second side of the original corresponding to the long side length of the paper finishing dimension;
Of the lengths of the sides of the document detected by the detecting means, the length of the side corresponding to the long side is any one of the determined dimension and the second paper finish dimension. Discriminating means for discriminating whether or not the length of the side corresponding to the long side length of the original and corresponding to the short side perpendicular to the long side of the document corresponds to the short side length of the one kind of dimension; ,
When it is determined that the correspondence condition between the length of each side of the document and the paper finishing dimension is satisfied by the determination unit, the length of the short side conveyed by the conveyance unit is the first side of the document. And for the roll paper corresponding to the length of any one of the second sides, the fixed length corresponding to the fixed length corresponding to the short side length of the corresponding roll paper in the one type of dimension. Therefore, when the discriminating unit determines that the corresponding condition between the length of each side of the document and the paper finishing dimension is not satisfied, the length of the short side to be conveyed is the length of the document. An image processing apparatus comprising: a cutting unit configured to cut out the roll paper corresponding to the length of the second side according to the length of the first side of the document. The conveying means conveys a plurality of types of roll paper corresponding to the short side length of any one of a plurality of predetermined paper finishing dimensions,
The detection means includes
The document in which the length of the second side corresponds to the short side length of any one of the plurality of types of dimensions, or the length of the second side has the plurality of types of dimensions. Among the fixed lengths, the short side length in the dimension that defines the shortest length as the short side length corresponds to the short side length in the third paper finishing dimension that is the dimension that defines the short side length as the long side length. Detecting the lengths of the first side and the second side of the original corresponding to the long side length of the third paper finish dimension;
The discrimination means includes
The length of the side corresponding to the long side of the document detected by the detecting means corresponds to the long side length of any one of the plurality of types of dimensions and the third paper finishing size. The image processing apparatus according to claim 1, wherein it is determined whether a length of a side corresponding to a short side of the document corresponds to a short side length of the one type of dimension. Further comprising reading means for reading the image of the document,
The image processing apparatus according to claim 1, wherein the detection unit detects a length of a first side of the document based on an image read by the reading unit.   The image according to claim 3, wherein the detection unit detects the length of the first side and the length of the second side of the document based on the image read by the reading unit. Processing equipment. The clipping means is
When it is determined by the determination means that the correspondence condition between the length of each side of the document and the paper finish dimension is satisfied, and the first side of the document is the long side of the document, the short 2. The cut-out according to a length of a short side length in the one kind of dimension is performed on a roll paper whose side length corresponds to the length of the first side of the document. Image processing apparatus. The discrimination means includes
The length of the side corresponding to the long side of the document detected by the detecting means is within a range around a predetermined length with respect to the long side length of the one type of dimension, and When the detected length corresponding to the short side of the document is within a range that extends back and forth over a predetermined length with respect to the short side length of the one type of dimension, the length of each side of the document The image processing apparatus according to claim 1, wherein the image processing apparatus determines that a correspondence condition between a paper size and a paper finishing dimension is satisfied. Further comprising an enlargement / reduction means for enlarging / reducing the image read by the reading means at an arbitrary magnification,
The detection unit is configured to perform the first side length and the second side length of the document based on an image obtained by enlarging / reducing the image enlarged / reduced by the enlargement / reduction unit by the reciprocal of the magnification. Detect
In accordance with the detection result by the detection means, when the determination means determines that the correspondence condition between the length of each side of the document and the paper finishing dimension is satisfied, the image is enlarged or reduced by the arbitrary magnification. Figure analysis means for detecting the length of the long side and the length of the short side of the figure to be represented,
A first fixed length that is longer than the length of the long side of the graphic detected by the graphic analysis means, and a pair with the first fixed length and detected by the graphic analysis means A dimension that defines a second sizing length that is equal to or greater than the length of the short side of the figure, and any sizing length is the length of the short side of the roll paper to be conveyed And a means for determining a corresponding fourth paper finish dimension,
The clipping means is
For the roll paper whose short side length corresponds to either the first fixed length or the second fixed length in the fourth paper finish dimension, the corresponding in the fourth paper finish dimension. The image processing apparatus according to claim 1, wherein the image processing apparatus performs cutting according to a fixed length that is paired with a fixed length corresponding to the length of the short side of the roll paper.

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