JP4446857B2 - Image processing device - Google Patents

Description

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

  2. Description of the Related Art Conventionally, an image processing apparatus such as a digital copying machine that reads an original image and prints it on paper includes a type of apparatus that uses roll paper as paper used for printing (see, for example, Patent Document 1).

  The paper feed mechanism of the digital copying machine using roll paper is a fixed-size original, in this case, an original according to any of the paper finishing dimensions A0 size, A1 size, A2 size,. According to the length of the side along the original reading direction by the original reading mechanism of the digital copier, out of each side of a non-size original, It has a function to perform roll paper cutting, so-called synchro cutting. A non-size document is a document in which only the length of one side corresponds to the paper finish dimension.

The digital copying machine reads a document image, performs enlargement / reduction on the image with a predetermined value or a magnification of an arbitrary value, and performs printing based on the image, so-called enlargement / reduction printing. It has a function.
JP 2004-90659 A

  When printing an image at the same magnification in the enlargement / reduction printing function, a roll paper whose short side length is the same as the side length along the direction orthogonal to the original reading direction of the original is automatically selected. Then, roll paper cutting is performed on the selected roll paper according to the length of the side of the original along the original reading direction. If the roll paper to be cut out is not set in the paper feed mechanism of the apparatus, a request for setting the roll paper to be cut out is made to the user by a message display or the like.

  Here, when performing automatic selection of roll paper and performing sync cut, a value that can be set as the enlargement / reduction magnification is, for example, a magnification at which a document of a fixed size becomes another fixed size, for example, Limited to magnification from A3 size to A0 size.

  A specific example will be described below. Here, it is assumed that A0 width roll paper, A1 width roll paper, A2 width roll paper, and A3 width roll paper are set in the paper feeding mechanism of the digital copying machine. The A0 width roll paper is a roll paper having a short side length, that is, a side along a direction orthogonal to the transport direction, which is an A0 size short side length (841 millimeters).

Here, the length L _{11 of} the side along the document reading direction, here the side corresponding to the long side is 800 mm, and the side along the direction orthogonal to the document reading direction, here the side corresponding to the short side 210% of the length of the short side of the figure represented by this image for an image obtained by reading a manuscript 31 (see FIG. 8) whose length W ₁₁ is A3 size short side length (297 millimeters) The automatic selection of roll paper when enlarging (2.1 times) will be described.

When it is desired to print on the roll paper an image obtained by enlarging the image read from the original 31, the original of the original 31 among the sides of the figure 32 (see FIG. 8) represented by the enlarged image. The length L _{12 of} the side having the same positional relationship as the side along the reading direction is 800 mm, and the length W _{12 of} the side having the same positional relationship as the side along the direction perpendicular to the original reading direction of the original 31 is set. Is 623.7 (= 297 * 2.1) millimeters, the only roll paper on which the image 32 obtained by the enlargement process can be printed is the above-described A0 width roll paper.

  However, the digital copying machine described above has a function of automatically selecting a roll paper that can print an enlarged image generated based on a document among a plurality of roll papers after setting an arbitrary magnification. The user does not have to check the type of roll paper that can print the enlarged image, and then specify the type of roll paper by operating the operation panel or the like.

  In addition, when performing sync cut, an image obtained by scanning an original with an enlargement / reduction at an arbitrary magnification is printed without rotation, that is, among the sides of the original, in the original reading direction. When printing is performed with the same positional relationship between the side along the side and the side along the printing direction of the roll paper to be printed, it occurs on the roll paper after cutting and printing depending on the original setting direction with respect to the original reading mechanism. Different margin areas.

  Specifically, as shown in FIG. 8, when the direction of the long side of the document 31 set with respect to the document reading mechanism is along the document reading direction, and with respect to the short side of the image obtained by reading When printing on the A0 width roll paper which is the object to be printed without rotation of the image 32 which has been enlarged by 210%, as shown in FIG. In the roll paper, a margin 33a corresponding to a figure having a long side of 800 mm and a short side of 176.3 (841 to 623.7) mm is generated.

  As shown in FIG. 10, when the direction of the short side of the original 31 set with respect to the original reading mechanism is along the original reading direction and 210% of the short side of the image obtained by reading. When printing without rotation of the enlarged image, as shown in FIG. 11, the roll paper after cutting and printing on the A0 width roll paper 33 has a long side length of 623.7 mm. A margin 33b corresponding to a graphic having a short side length of 41 (= 841-800) millimeters is generated.

  When the area of the margin 33a is compared with the area of the margin 33b, the area of the margin 33b is smaller than the area of the margin 33a. Therefore, in order to suppress wasteful consumption of roll paper, it is desirable to set the document 31 in the document reading mechanism so that the direction of the short side is along the document reading direction. However, such a margin is reduced. The user has to determine the original setting direction.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an image processing apparatus capable of appropriately selecting a roll paper to be printed according to the size of an image to be printed.

  In other words, the image processing apparatus according to the present invention is the same as the side along the original reading direction of the original among the sides of the figure represented by the image obtained by enlarging or reducing the original image with the same or arbitrary magnification. The length of the first graphic side that is the side in the positional relationship and the length of the second graphic side perpendicular to the first graphic side are detected, and the length of the short side of the various roll papers is the second graphic side. The roll paper having the shortest length is cut out according to the length of the first graphic side.

  In the image processing apparatus according to the present invention, a first graphic side that is a side having the same positional relationship as a side along the original reading direction of a document, and a graphic represented by an image obtained by enlarging or reducing the image of the document; The length of the second graphic side orthogonal to the first graphic side is detected, and among the various roll papers, the length of the short side is equal to or longer than the length of the second graphic side and is the shortest length. Since the roll paper is cut out according to the length of the first graphic side, an appropriate selection of the roll paper to be printed is made according to the size of the image to be printed, which is an image obtained based on the original. Can be performed.

  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 set 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 document reading direction (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).

  The printing mechanism 16 includes a roll paper setting unit (roll paper attachment port) 16a, a transport unit 16b, a cut 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.

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

  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 set only one type of roll paper.

  The A0 width roll paper is a roll paper in which the length of the short side, that is, the length of the side along the direction orthogonal to the conveyance direction by the conveyance unit 16b is the 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.

  In accordance with the embodiment of the present invention, the digital copying machine enlarges or reduces the image of the document read by the document reading mechanism 15, and prints an image to be printed on the roll paper by the printing mechanism 16. It has an enlargement / reduction printing function. Details of this function will be described later.

  The digital copying machine according to the embodiment of the present invention is an image obtained by reading a document set on the document setting unit 15a and enlarging / reducing the read image as necessary. It has a function of automatically determining the type of size to be printed and automatically setting a roll paper cutting method according to the determined type. Specifically, the CPU 11 detects the size type of the graphic by detecting the length of each side of the graphic represented by the image to be printed.

  As a result of this detection, if it is determined that the figure size corresponds to any one of the A0 size, A1 size, A2 size, A3 size, and A4 size, the printing mechanism 16 uses various rolls. Roll paper cut according to the other sizing length of the corresponding size with respect to the roll paper corresponding to one sizing length defined by the dimension corresponding to the graphic size, the length of the short side of the paper, When a so-called fixed-size cut is performed and it is determined that the size of the figure does not correspond to the above-mentioned various sizes, other than the figure on the roll paper whose short side corresponds to the length of one side of the figure Roll paper cut according to the length of the side, so-called sync cut is performed. In the embodiment of the present invention, the following description will be made on the assumption that the document set on the document setting unit 15a is a non-sizing document.

  In addition, the digital copying machine according to the embodiment of the present invention is not limited to the mode in which the roll paper cutting method is automatically set as described above, but by performing a predetermined operation on the input unit 12, It is possible to arbitrarily specify whether to perform the cut or the synchro cut. Here, a predetermined operation on the input unit 12 will be performed, and the following description will be made assuming that the roll paper cutting method is designated as synchro cut.

  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.

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

  FIG. 5 is a diagram showing an example of a figure represented by an enlarged image of a document set on the digital copying machine according to the embodiment of the present invention.

Shown in FIG. 4, the set target document 21 on the document setting portion 15a of the document reading mechanism 15, the length L ₁ of 800 mm edges 21a along the document reading direction by the image reading unit 15b, the document reading direction A document in which the length W ₁ of the side 21b along the direction orthogonal to the length is a short side length of A3 size (297 millimeters), ie, a so-called A3 width document.

  The digital copying machine according to the embodiment of the present invention cuts out and prints among a plurality of types of roll paper that can be set on the document setting unit 16a of the printing mechanism 16 by performing a predetermined operation on the input unit 12. A function for arbitrarily setting a candidate for the target type. The CPU 11 stores information on the roll paper type candidates set as described above, and uses the stored roll paper type as a roll paper type candidate to be cut out. Not limited to this, the type of roll paper actually set in the roll paper setting unit 16a is automatically determined using a sensor (not shown), and the roll paper type determined to be set is cut out. The configuration may be a candidate for the roll paper type.

  Then, the image reading unit 15b of the document reading mechanism 15 reads an image of the document 21 (see FIG. 4) set on the document setting unit 15a (step S1).

  When the input unit 12 accepts an operation for enlargement / reduction at an arbitrary magnification, the CPU 11 outputs information on the magnification to the document reading mechanism 15. The document reading mechanism 15 performs enlargement / reduction processing according to the magnification input from the CPU 11 on the image data obtained by reading, and outputs the image data obtained by the enlargement / reduction processing to the memory 14.

  Here, the figure 22 in which the length of the side corresponding to the side 21a of the document 21 is enlarged to 210% (2.1 times) among the sides of the figure represented by the image of the document 21 (see FIG. 5). ) Will be described below assuming that the operation related to the setting for printing is performed by the input unit 12. Further, the output image data includes information indicating sides along the document reading direction by the image reading unit 15b among the sides of the graphic 22 represented by the image data.

  Of each side of the figure 22, the length of the side 22a having the same positional relationship as the side 21a of the document 21 and the side 22c (first figure side) facing the side 22a is 800 millimeters. Also, the length of the side 22b of the figure 22 that is in the same positional relationship as the side 21b of the document 21 and the side 22d (second figure side) facing the side 22b is 623.7 (= 297 * 2.1). ) Mm. Here, the image of the original 21 is only enlarged in one direction, but it is also possible to perform enlargement in a direction orthogonal to this direction.

  Further, when the input unit 12 has not received an operation for enlargement / reduction and the document reading mechanism 15 has not input magnification information from the CPU 11, or the input unit 12 performs an operation for enlargement / reduction at the same magnification. If it is accepted and the magnification input from the CPU 11 by the document reading mechanism 15 is 100% (equal magnification), the image data obtained by reading is output to the memory 14 without being enlarged or reduced.

  The CPU 11 acquires the image data input to the memory 14 and detects the length of the side 22a of the figure 22 represented by this image data and the side 22b orthogonal to the side 22a (step S2). The size of the figure 22 corresponds to the print size on the roll paper.

  Next, the CPU 11 includes the length of the side 22b of the figure 22 represented by the image data input from the document reading mechanism 15 to the memory 14 and the information indicated by the fixed size table (see FIG. 2). As described above, the information on the short side length of the paper finishing dimension corresponding to the roll paper type set as the candidate for cutting and printing is collated in accordance with the operation on the input unit 12. Then, by this collation, the CPU 11 determines a paper finish dimension type that is equal to or longer than the length of the side 22b of the figure 22 and whose shortest length is defined as the short side length. The type is calculated (step S3).

  In the process of step S3, a roll paper type suitable for performing a roll paper cut according to the length of the side 22a of the figure 22, that is, a roll paper cut without image rotation, is calculated.

  Specifically, since the length of the side 22b of the figure 22 is 623.7 millimeters, the roll paper type set as the candidate for cutting and printing according to the operation on the input unit 12 is A0 width roll paper, In the case of A1 width roll paper and A2 width roll paper, A0 size short side length (841 millimeters), A1 size short side length (594 millimeters), Of the short side length of A1 size (420 millimeters), the shortest side length that is equal to or longer than the length of side 22b is the short side length of A0 size. The roll paper to be cut out and printed is A0 width roll paper.

  Then, the CPU 11 determines the length of the side 22b of the figure 22 from the area of the margin when the roll paper is cut without image rotation, that is, the short side length (841 mm) of the A0 width roll paper to be cut and printed. A margin area which is a product of a value obtained by subtracting the length (623.7 millimeters) and the length (800 millimeters) of the side 22a of the figure 22 is calculated.

  Next, the CPU 11 includes the length of the side 22a of the figure 22 represented by the image data input from the document reading mechanism 15 to the memory 14 and the information indicated by the fixed size table (see FIG. 2). Information on the short side length of the paper finishing dimension corresponding to the roll paper type candidate set as described above is collated. Based on this collation, the CPU 11 determines a paper finish dimension type that is equal to or longer than the length of the side 22a of the figure 22 and has the shortest length as the short side length. (Step S4).

  In step S4, the roll paper type suitable for the roll paper cut according to the length of the side 22b of the figure 22, that is, the roll paper cut accompanied by the rotation of the original image is calculated.

  Specifically, since the length of the side 22a of the figure 22 is 800 millimeters, the short side length corresponding to the roll paper type candidate to be cut out / printed is equal to or longer than the length of the side 22a, and Since the shortest short side length is the A0 size short side length, the roll paper to be cut out and printed is the A0 width roll paper.

  Then, the CPU 11 determines the length of the side 22a of the figure 22 from the area of the margin when performing roll paper cutting with image rotation, that is, the short side length (841 millimeters) of the A0 width roll paper to be cut out and printed. A margin area which is a product of a value obtained by subtracting (800 millimeters) and the length (623.7 millimeters) of the side 22b of the figure 22 is calculated.

  Next, the CPU 11 determines the roll paper type to be cut out and printed by comparing the value of the margin area calculated in the process of step S3 and the value of the margin area calculated in the process of step S4 (step S5). ).

  Specifically, when the area calculated in step S3 is smaller than the area calculated in step S4, the CPU 11 actually sets the roll paper type calculated as the cut-out / print target in step S3. Is determined as the roll paper type to be cut out and printed. After this determination, the CPU 11 determines, as the cut length, the length of the side in the same positional relationship as the side along the document reading direction in the document among the sides of the graphic represented by the enlarged / reduced image. The determined roll paper type information and cut length information are output to the printing mechanism 16.

  If the area calculated in step S4 is smaller than the area calculated in step S3 based on the above-described comparison, the CPU 11 determines the roll paper type calculated as the object to be cut out / printed in step S4. Are determined as the roll paper type to be actually cut out and printed. After this determination, the CPU 11 determines, as the cut length, the length of the side in the same positional relationship as the side along the direction orthogonal to the original reading direction in the original among the sides of the enlarged / reduced figure. The determined roll paper type information and cut length information are output to the printing mechanism 16.

  The cutting unit 16c of the printing mechanism 16 cuts the roll paper corresponding to the type indicated by the information input from the CPU 11 among various types of roll paper set in the roll paper setting unit 16a, as indicated by the information input from the CPU 11. Cutout is performed according to the length, and the printing unit 16d prints the enlarged / reduced image on the cut roll paper without any shortage (step S6).

  However, when the roll paper to be cut out, that is, the roll paper corresponding to the type indicated by the information input from the CPU 11 is not set in the roll paper setting unit 16a, the CPU 11 rolls the roll paper to be cut out. Control is performed so as to notify that the paper set unit 16a needs to be attached, for example, a blinking display lamp (not shown).

  When the roll paper to be cut out is not set, not only the notification described above, but also the CPU 11 excludes the roll paper type that has not been set from the roll paper type treasure set as described above. The processing of step S6 may be performed after the above-described processing of steps S3 to S5 is performed again.

  In the printing by the process of step S6, when the blank area calculated by the process of step S3 is smaller than the blank area calculated by the process of step S4, printing without image rotation, that is, an image after enlargement / reduction is performed. Of the sides of the figure to be expressed, printing is performed in such a manner that the side having the same positional relationship as the side along the direction orthogonal to the original reading direction on the original corresponds to the short side of the roll paper to be cut and cut.

  On the other hand, when the area of the margin calculated by the process of step S4 is smaller than the area of the margin calculated by the process of step S3, printing with image rotation, that is, the figure represented by the image after enlargement / reduction Of these sides, printing is performed in such a manner that the side having the same positional relationship as the side along the original reading direction of the original corresponds to the short side of the roll paper to be cut and cut.

  FIG. 6 is a diagram illustrating an example of a roll paper cut according to an embodiment of the present invention.

  When the original set on the original reading mechanism 15 is the original 21 (see FIG. 4) and the figure expressed by the enlarged / reduced image is the figure 22 (see FIG. 5), Since the area of the margin of the roll paper after the cutout / printing is smaller when the cutout / printing with image rotation described above is performed, the cut portion 16c is longer than the A0 width roll paper 23 by the length of the side 22b of the figure 22 Cut out according to the length (623.7 millimeters).

  As described above, in the digital copying machine according to the embodiment of the present invention, an image obtained by enlarging / reducing an image obtained by reading an original set on the original reading mechanism 15 with a preset magnification is analyzed. Thus, among the roll paper types preset as candidates, the roll paper type that is most suitable for clipping / printing, that is, the roll paper type that fits all the images to be printed and has the smallest margin area after clipping / printing. Is automatically calculated, and the roll paper corresponding to the calculated type is cut out and printed according to the calculated cut length. Therefore, the size and enlargement of the document set in the document setting unit 15a Depending on the reduction mode, it is possible to perform roll paper cutting and printing after selecting an appropriate roll paper type. Therefore, the user does not need to select the roll paper type that fits all the images of the original and reduces the margin when setting the original.

  Further, in the digital copying machine according to the embodiment of the present invention, by performing a predetermined operation on the input unit 12, it is possible to set whether or not the above-described printing with image rotation is performed, and printing with image rotation is performed. If no setting is made, the calculation of the margin in step S3 and the process in step S4 are omitted, and the process in step S3 is calculated to be optimal for printing without image rotation. The roll paper type is determined as the actual roll paper type to be printed.

  FIG. 7 is a view showing a modified example of roll paper cutting according to the embodiment of the present invention.

  For example, when the set original is the original 21 and the setting is made so that printing with image rotation is not performed, the CPU 11 determines that the optimum roll paper for cutting and printing is A0 width roll paper, and the cut paper is cut. The length is calculated to be the length along the side 22 a of the figure 22. The printing mechanism 16 performs roll paper cutting on the A0 width roll paper 23 according to the length (800 mm) along the side 22a of the figure 22 according to the calculation result by the CPU 11 (see FIG. 7). On the rolled paper, printing without image rotation, that is, printing in which the positional relationship between the side 22b of the graphic 22 or the side 22d facing the side 22b and the side 23a of the A0 width roll paper 23 is the same.

  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 document set on the digital copying machine according to the embodiment of the present invention. FIG. 3 is a diagram showing an example of a figure represented by an enlarged image of a document set on the digital copying machine according to the embodiment of the present invention. The figure which shows an example (the 1) of roll paper cut according to embodiment of this invention. The figure which shows an example (the 2) of roll paper cut according to embodiment of this invention. FIG. 6 is a diagram illustrating an example of a document set on a conventional digital copying machine and an enlarged image of the document. 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 illustrating an example 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 Part, 16c ... cut part, 16d ... printing part, 21,31 ... original, 22,32 ... enlarged image, 23,33 ... A0 width roll paper.

Claims (4)

A roll paper attachment port for attaching a plurality of types of roll paper whose short side length corresponds to the short side length of any one of a plurality of predetermined paper finishing dimensions;
Reading means for reading an image of a document;
Enlarging / reducing means for enlarging / reducing the image read by the reading means at the same magnification or an arbitrary magnification,
Of the sides of the image data processing is scaling by the magnification or arbitrary ratio Ri by this scaling means, the same positional relationship is sides along the document reading direction by the reading means of the document Graphic analysis means for detecting a first graphic side that is a side and a length of a second graphic side orthogonal to the first graphic side;
Among the roll paper types attached to the attachment opening, the first roll paper type having a short side length equal to or longer than the detected second graphic side length and the shortest length, and Selection means for selecting a second roll paper type having a short side length equal to or longer than the detected first graphic side length and the shortest length;
Said first selected by the selection means of the short side of the roll paper corresponds to the roll paper type of length and the second figure sides of the difference between said first graphic side length first, which is the product of the length area, and, by the product of the length of the difference between the second figure sides of the lengths of the short sides of the roll paper corresponding to the second paper roll was selected by the selection means type and the first graphic side A calculating means for calculating each second area;
When the first area is smaller than the second area, the roll paper corresponding to the first roll paper type is cut out according to the length of the first graphic side, and the second area is cut out. If the area is smaller than the first area, cutting means for cutting the roll paper corresponding to the second roll paper type according to the length of the second graphic side ;
When the first area is smaller than the second area, the roll paper corresponding to the first roll paper type that is cut out so that the image reading direction and the printing direction of the reading unit are the same direction. The image data is printed without rotating the image data so that the second graphic side of the image data is along the short side of the roll paper, and the second area is smaller than the first area. In this case, the image data is transferred to the short side of the roll paper with respect to the roll paper corresponding to the second roll paper type cut out so that the image reading direction of the reading unit and the printing direction are perpendicular to each other. A printing unit that performs printing by rotating the image so that the first graphic side of the image data is along the direction;
An image processing apparatus comprising: Further comprising setting means for setting the selection by the selection means and the presence or absence of the calculation by the calculation means,
The clipping means is
The length of the first graphic side for the roll paper corresponding to the first roll paper type when the setting means performs selection by the selection means and setting for not performing calculation by the calculation means. The image processing apparatus according to claim 1 , wherein the image processing is performed according to the above. The selection means includes
From among the predetermined one of the roll paper can be attached to the mounting opening type classification, the image processing apparatus according to claim 1, characterized in that the selection of the roll paper type. A discriminator for discriminating the type of roll paper attached to the attachment port;
The selection means includes
Among the mounting opening in the attachable roll paper type, according to claim 1, from among of the determined type by the discriminating means and is attached to the mounting opening, characterized by performing the selection of the roll paper type the image processing apparatus according to.

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