JP2019137007A - Printer, printing method and program - Google Patents

Abstract

To make it possible to easily perform visual recognition of a printed image irrespective of a color of a printed medium.SOLUTION: A printer 1 comprises a color determination part 40, a color comparison part 62, an image changing part 63, and a printing part 20. The color determination part 40 determines a color of a printed medium. The color comparison part 62 compares the color of the printed medium determined by the color determination part 40 with a color of a boundary between an image of a printing object and a non-printing part, and determines whether the color of the printed medium and the color of the boundary are coincident with each other or not. When it is determined by the color comparison part 62 that the color of the printed medium and the color of the boundary are coincident with each other, the image changing part 63 changes the image of the printing object. The printing part 20 prints the image of the printing object changed by the image changing part 63 onto the printed medium.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a printing apparatus, a printing method, and a program.

  Patent Document 1 describes a handy printer that prints an image on a recording sheet by a recording head while manually moving the printer body on the recording sheet.

JP 2001-225512 A

  Since the handy printer disclosed in Patent Document 1 is printed by being held by a user's hand, printing can be performed on non-printing media of various places, colors, and materials, not limited to printing paper. However, depending on the color of the printing medium, the color of the image to be printed is close to the color of the printing medium, and the printed image is mixed with the color of the printing medium, making it difficult to see. It was.

  SUMMARY An advantage of some aspects of the invention is that it provides a printing apparatus, a printing method, and a program that make it easy to view a printed image regardless of the color of a printing medium. .

In order to achieve the above object, one aspect of a printing apparatus according to the present invention is:
A color discriminating unit for discriminating the color of the printing medium;
The color of the printing medium determined by the color determination unit and the color of the boundary between the non-printed portion of the image to be printed are compared, and the color of the printing medium and the color of the boundary are identical. A color comparison unit that determines whether or not
An image changing unit that changes the image to be printed when the color comparison unit determines that the color of the printing medium matches the color of the boundary; and
A printing unit that prints the image to be printed changed by the image changing unit on the printing medium;
It is characterized by that.

In order to achieve the above object, one aspect of the printing method according to the present invention is as follows.
Determine the color of the print medium,
By comparing the determined color of the printing medium with the color of the boundary between the non-printed portion of the image to be printed, it is determined whether the color of the printing medium and the color of the boundary match. Judgment,
When it is determined that the color of the printing medium and the color of the boundary portion match, the image to be printed is changed,
Printing the changed image to be printed on the printing medium;
It is characterized by that.

In order to achieve the above object, one aspect of the program according to the present invention is as follows:
On the computer,
Let the color of the print medium be distinguished,
The determined color of the printing medium is compared with the color of the boundary between the non-printed portion of the image to be printed and it is determined whether the color of the printing medium matches the color of the boundary. Let
When it is determined that the color of the printing medium matches the color of the boundary, the image to be printed is changed,
Printing the changed image to be printed on the printing medium;
It is characterized by that.

  According to the present invention, it is possible to easily view a printed image regardless of the color of the printing medium.

2A is a side view and FIG. 2B is a bottom view of the printing apparatus according to Embodiment 1. FIG. 1 is a block diagram illustrating a configuration of a printing apparatus according to a first embodiment. It is a figure which shows the example of the image of the printing target printed on (a) the image of printing object, (b) to-be-printed medium, and (c) to-be-printed medium. FIG. 3 is a diagram illustrating an image to be printed with (a) a contour line added to the first embodiment, (b) a printing medium, and (c) an image to be printed printed on the printing medium with a contour line added. . 4 is a flowchart of print processing executed by the printing apparatus according to the first embodiment. 10 is a flowchart of print processing executed by the printing apparatus according to the second embodiment. Embodiment 2 (a) an image to be printed, (b) a medium to be printed, (c) an image to be printed whose color has been changed, and (d) a print object whose color has been changed and printed on the medium to be printed It is a figure which shows an image. It is (a) side view and (b) bottom view of the printing apparatus of a modification.

(Embodiment 1)
A printing apparatus 1 according to Embodiment 1 will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals.

  1A is a side view and FIG. 1B is a bottom view of a printing apparatus 1 according to a first embodiment. The printing apparatus 1 is a manual scanning printing apparatus that prints an image (image data) to be printed on the printing medium 2 by being gripped by the user and moved so as to slide on the printing medium 2. . Such a manual scanning printing apparatus is also called a handy printer or a direct printer.

  The printing medium 2 can include printing paper, printing labels, and cardboard, but is not limited thereto. The printing medium 2 is also called a recording medium or a printing object. The printing medium 2 is typically formed from paper or resin, but is not limited thereto. The material to which the ink can be attached may be formed from any material as long as it is formed in a surface state to which the ink can be attached.

  The image 3 to be printed can include characters, symbols, figures, patterns, pictures, and photographs, but is not limited thereto. The image 3 to be printed is also called a print image or a print pattern.

  FIG. 2 is a block diagram illustrating the configuration of the printing apparatus 1. As illustrated in FIGS. 1A and 2, the printing apparatus 1 includes a housing 10, a printing unit 20, a movement amount measurement unit 30, a color determination unit 40, an interface unit 50, and a control unit 60. And a storage unit 70.

  The housing 10 houses the printing unit 20, the movement amount measurement unit 30, the color determination unit 40, the interface unit 50, the control unit 60, and the storage unit 70 that are components of the printing apparatus 1. As shown in FIGS. 1A and 1B, the printing unit 20, the movement amount measurement unit 30, the color determination unit 40, and the interface unit 50 are exposed from the housing 10. The housing 10 is made of resin or metal, but is not limited thereto. The housing 10 includes a marker 11 on a surface adjacent to the surface on which the printing unit 20 is disposed. The housing 10 is also referred to as the apparatus main body 10. The housing 10 includes a substrate, a battery, and the like inside, but illustration thereof is omitted.

  The marker 11 is an index that indicates to the user the width of the print head 22 of the printing unit 20 to be described later and the print start position. The width of the marker 11 is equal to the width of the printing unit 20.

  The printing unit 20 is disposed on a surface of the housing 10 that comes into contact with the printing medium 2 and prints an image 3 to be printed on the printing medium 2. The printing unit 20 includes an ink tank 21 filled with ink and a print head 22 that atomizes and discharges the ink filled in the ink tank 21 and performs printing by an inkjet method. The ink tank 21 supplies ink to the print head 22. A plurality of nozzles 23 are arranged in the print head 22 along the main scanning direction and the sub-scanning direction. The print head 22 heats the ink in the nozzles 23 with a heater to generate bubbles in the ink, and discharges ink from the respective nozzles 23 to the print medium 2 by the generated bubbles.

  The movement amount measurement unit 30 is a sensor that measures the amount of movement of the printing apparatus 1 and the printing unit 20 included in the printing apparatus 1 relative to the printing medium 2. As shown in FIG. 2, the movement amount measuring unit 30 includes an LED (Light Emitting Diode) 31 and an image sensor 32, and the image sensor 32 reads light reflected by the print medium 2 by the LED 31. By comparing the reflected light before and after the movement, the amount and direction of movement of the printing apparatus 1 are measured. The movement amount measuring unit 30 provides the control unit 60 with data including the measured movement amount and direction.

  The color determination unit 40 determines the color of the printing medium 2. The color discriminating unit 40 discriminates the three colors of reflected light of R (red, first component) G (green, second component) B (blue, third component) from the discrimination target. It is a color sensor that discriminates the color of the color. The color determination unit 40 provides the control unit 60 with data including the determined color of the printing medium 2.

  The interface unit 50 accepts input from the user including instructions for starting decorative printing and ending decorative printing, and presents information to the user. The interface unit 50 provides the control unit 60 with the received print start, print stop, and contour line availability instruction, and presents the information acquired from the control unit 60 to the user. The interface unit 50 may include a button that accepts input from the user, a key or a touch pad, a liquid crystal display or speaker that presents information to the user, or a touch panel that also serves as both, but the elements included in the interface unit 50 include It is not limited to this.

  The control unit 60 is a processing device that controls the printing apparatus 1 by executing a program. The control unit 60 includes a print control unit 61, a color comparison unit 62, and an image change unit 63. The control unit 60 may include a CPU (Central Processing Unit), but is not limited thereto.

  When the interface unit 50 receives an instruction to start printing, the print control unit 61 controls the printing unit 20 to start printing the image 3 to be printed. At this time, the casing 10 is held by the user and the printing apparatus 1 is moved. The print control unit 61 acquires the movement amount measured by the movement amount measurement unit 30, and controls the printing unit 20 to print a portion corresponding to the position of the printing unit 20 of the image 3 to be printed. When printing of the image 3 to be printed is completed, the print control unit 61 controls the printing unit 20 to stop printing.

  The color comparison unit 62 compares the color of the printing medium 2 transmitted from the color determination unit 40 with the color of the part (boundary part) in contact with the non-printed part of the image 3 to be printed. Specifically, the color comparison unit 62 calculates the difference between the color coordinates of the printing medium 2 transmitted from the color determination unit 40 and the color coordinates of the portion in contact with the non-printed portion of the image 3 to be printed for RGB. When the obtained difference value is below the threshold value for all of RGB, it is determined that the color of the printing medium 2 matches the color of the boundary portion of the image 3 to be printed. When it is determined that the colors match, the color comparison unit 62 controls the interface unit 50 to notify the user that the colors match.

  The image changing unit 63 controls the interface unit 50 when the color comparing unit 62 determines that the color of the printing medium 2 matches the color of the boundary of the image 3 to be printed, and the image to be printed 3 asks the user whether to add a contour line. When the user inputs to the interface unit 50 to select to add a contour line, the image changing unit 63 edits the image 3 to be printed and adds the contour line 4 to the boundary portion of the image 3 to be printed. . The color of the outline 4 is desirably black, but any color can be used as long as it does not match the color of the printing medium 2 and the color of the boundary of the image 3 to be printed.

  FIG. 3 is a diagram illustrating an example of (a) an image 3 to be printed, (b) a print medium 2, and (c) an image 3 to be printed printed on the print medium 2. As shown in FIG. 3A, the image 3 to be printed is composed of three one-color images. As shown in FIG. 3B, the color of the printing medium 2 matches one color of the image included in the image 3 to be printed. When the image 3 to be printed is printed on the printing medium 2 without adding the outline 4, the image whose color matches the color of the printing medium 2 is identified as shown in FIG. It becomes difficult to do.

  FIG. 4 shows (a) an image 3 to be printed with the outline 4 added, (b) the printing medium 2 and (c) an image 3 to be printed printed on the printing medium 2 with the outline 4 added. FIG. By adding the contour line 4 as shown in FIG. 4A, the color of the printing medium 2 matches one color of the image included in the image 3 to be printed as shown in FIG. 4B. Even if the image has been lost, it is possible to easily recognize an image whose color matches as shown in FIG.

  The storage unit 70 stores a program and data for the control unit 60 to execute processing, and functions as a work area when the control unit 60 executes processing. The storage unit 70 controls the printing unit 20 to perform printing, controls the movement amount measurement unit 30 to measure movement amount, and controls the color determination unit 40 to determine and print the color of the printing medium 2. A program, a program for comparing the color of the printing medium 2 with the color of the image 3 to be printed, a program for adding a contour line 4 to the image 3 to be printed, the coordinates of the printing unit 20, and the data of the image 3 to be printed Although it can memorize | store, the object to memorize | store is not restricted to this. The storage unit 70 may include a ROM (Read Only Memory) and a RAM (Random Access Memory), but the elements of the storage unit 70 are not limited thereto.

  A printing process executed by the printing apparatus 1 according to the first embodiment will be described. FIG. 5 is a flowchart of print processing executed by the printing apparatus 1. The printing process will be described with reference to the flowchart of FIG.

  When the comparison process is started, the color determination unit 40 determines the color of the printing medium 2 (step S101).

  When the color of the printing medium 2 is determined, the color comparison unit 62 determines whether or not the absolute value of the difference between the R value of the boundary portion of the image 3 to be printed and the R value of the printing medium 2 is equal to or less than the threshold value ( Step S102). When it is determined that the value is larger than the threshold (step S102: NO), the process proceeds to step S108.

  If it is determined that the value is equal to or less than the threshold (step S102: YES), the color comparison unit 62 determines whether the absolute value of the difference between the G value at the boundary of the image 3 to be printed and the G value of the print medium 2 is equal to or less than the threshold. It is determined whether or not (step S103). If it is determined that the value is larger than the threshold (step S103: NO), the process proceeds to step S108.

  If it is determined that the color comparison unit 62 determines that the absolute value of the difference between the B value of the boundary portion of the image 3 to be printed and the B value of the print medium 2 is equal to or less than the threshold value (YES in step S103), It is determined whether or not (step S104). When it is determined that the value is larger than the threshold (step S104: NO), the process proceeds to step S108.

  When it is determined that the color coordinate difference between the boundary portion of the image 3 to be printed and the print medium 2 is equal to or less than the threshold value for RGB, it is determined that the color value is equal to or less than the threshold value (step S104: YES). The comparison unit 62 controls the interface unit 50 to notify the user that the colors match (step S105).

  When the color comparison unit 62 notifies the user, the image changing unit 63 displays the question to the user by controlling the interface unit 50 as to whether or not to add the outline 4 to the image 3 to be printed. 50 receives an input for selecting whether or not to add the outline 4 by the user (step S106). When the user inputs not to add via the interface unit 50 (step S106: NO), the process proceeds to step S108.

  When the user inputs to add via the interface unit 50 (step S106: YES), the image changing unit 63 edits the image 3 to be printed and adds the outline 4 to the boundary (step S107).

  When the contour line 4 is added to the boundary portion, the print control unit 61 controls the printing unit 20 to print the image 3 to be printed on the printing medium 2 (step S108), and the printing process ends.

  By having the above-described configuration and executing the printing process, the printing apparatus 1 according to the first embodiment performs printing when the color of the image 3 to be printed matches the color of the printing medium 2. An outline 4 can be added to the target image 3 to make it easier for the user to visually recognize the printed image regardless of the color of the printing medium 2.

  Although the manual scanning type printing apparatus has an advantage that printing can be performed without selecting the location and size of the printing medium 2, the printing apparatus according to the first embodiment has the advantage of being covered in addition to the above. Printing can be performed without selecting the color of the print medium 2.

(Embodiment 2)
A printing apparatus 1 according to Embodiment 2 will be described with reference to the drawings. The configuration of the printing apparatus 1 according to the second embodiment is the same as the configuration of the printing apparatus 1 according to the first embodiment shown in FIGS.

  When the image changing unit 63 included in the printing apparatus 1 according to the second embodiment asks the user whether or not to add a contour line to the image 3 to be printed and selects that the contour line 4 is added, the interface changes. The display which prompts the user to select the color of the outline 4 to be added by controlling the unit 50 is performed.

  When the user selects the color of the contour line 4, the color comparison unit 62 compares the color of the printing medium 2 transmitted from the color determination unit 40 with the color of the contour line 4 transmitted from the interface unit 50. . Specifically, the color comparison unit 62 acquires the difference between the color coordinates of the printing medium 2 transmitted from the color determination unit 40 and the color coordinate of the outline 4 for RGB, and the acquired difference value is RGB. When the value is lower than the threshold value for all, it is determined that the color of the printing medium 2 matches the color of the contour line 4. When it is determined that the colors match, the color comparison unit 62 controls the interface unit 50 to notify the user that the colors match.

  Whether the image changing unit 63 controls the interface unit 50 to change the color of the contour line 4 when the color comparison unit 62 determines that the color of the printing medium 2 matches the color of the contour line 4. Ask the user what to do. When the user changes the color of the outline 4, the color comparison unit 62 compares the color of the printing medium 2 with the changed color of the outline 4. If it is not changed or if the color of the printing medium 2 and the color of the outline 4 do not match, the image 3 to be printed is edited and the outline 4 is added to the boundary of the image 3 to be printed To do.

  A printing process executed by the printing apparatus 1 according to the second embodiment will be described. FIG. 6 is a flowchart of print processing executed by the printing apparatus 1. The printing process will be described with reference to the flowchart of FIG. Step S201 to step S206 are the same as step S101 to step S106 shown in FIG. 6 except that the process proceeds to step S214 instead of proceeding to step S108, and the description thereof is omitted.

  If the user inputs to add a contour line via the interface unit 50 in step S206 (step S206: YES), the image changing unit 63 controls the interface unit 50 to select the color of the contour line 4 to be added. The display prompting the user is performed, and the interface unit 50 receives an input for selecting the color of the contour line 4 by the user (step S207).

  When the input for selecting the color of the contour line 4 is received, the color comparison unit 62 determines whether or not the absolute value of the difference between the R value of the contour line 4 and the R value of the printing medium 2 is equal to or less than the threshold value (step S208). ). If it is determined that the value is larger than the threshold (step S208: NO), the process proceeds to step S213.

  When it is determined that the value is equal to or less than the threshold value (step S208: YES), the color comparison unit 62 determines whether the absolute value of the difference between the G value of the outline 4 and the G value of the printing medium 2 is equal to or less than the threshold value ( Step S209). If it is determined that the value is larger than the threshold (step S209: NO), the process proceeds to step S213.

  When it is determined that the value is equal to or less than the threshold value (step S209: YES), the color comparison unit 62 determines whether the absolute value of the difference between the B value of the outline 4 and the B value of the printing medium 2 is equal to or less than the threshold value ( Step S210). If it is determined that the value is larger than the threshold (step S210: NO), the process proceeds to step S213.

  If it is determined that the color coordinate difference between the contour line 4 and the printing medium 2 is equal to or less than the threshold value for RGB when it is determined that the color comparison unit 62 is less than the threshold value (step S210: YES), the color comparison unit 62 Then, the interface unit 50 is controlled and the user notifies the user that the colors match (step S211).

  When notification that the colors match is made, the image changing unit 63 displays a message asking the user whether or not to change the color of the contour line 4, and the interface unit 50 displays the color of the contour line 4 by the user. An input for selecting whether or not to change is received (step S212). When the user has selected to change the color of the outline 4 (step S212: YES), the process returns to step S208.

  If the user has not selected to change the color of the contour line 4 (step S212: NO), the image changing unit 63 edits the image 3 to be printed and adds the contour line 4 to the boundary (step). S213).

  When the contour line 4 is added to the boundary portion, the print control unit 61 controls the printing unit 20 to print the image 3 to be printed on the printing medium 2 (step S214), and the printing process ends.

  By having the above-described configuration and executing the printing process, the printing apparatus 1 according to the second embodiment has the color of the added outline 4 in addition to the effects exhibited by the printing apparatus 1 according to the first embodiment. It is possible to prevent the printed image from becoming difficult to visually recognize because it matches the color of the printing medium 2.

  According to the printing apparatus 1 according to the second embodiment, the user selects the color of the outline 4 to be added, so that the user can obtain the entire color tone including the print medium 2, the image 3 to be printed, and the outline 4. Can be changed as desired.

(Embodiment 3)
A printing apparatus 1 according to Embodiment 3 will be described with reference to the drawings. The configuration of the printing apparatus 1 according to the third embodiment is the same as the configuration of the printing apparatus 1 according to the first embodiment shown in FIGS.

  The image changing unit 63 included in the printing apparatus 1 according to the second embodiment has an interface when the color comparing unit 62 determines that the color of the printing medium 2 matches the color of the boundary of the image 3 to be printed. The unit 50 is controlled to ask the user whether or not to change the color of the image 3 to be printed. When the user performs an input to change the color through the interface unit 50 and determines the color to be changed, the image changing unit 63 causes the portion of the image 3 to be printed to match the color of the print medium 2. Change the color.

  The color comparison unit 62 further compares the color of the printing medium 2 with the image 3 to be printed that has been changed by the image changing unit 63, and performs notification when it is determined that the colors match.

  FIG. 7 shows (a) an image 3 to be printed, (b) a medium 2 to be printed, (c) an image 3 to be printed whose color is changed, and (d) a color which has been changed and printed on the medium 2 to be printed. It is a figure which shows the image 3 of printing object. Even when the color of the image 3 to be printed and the color of the printing medium 2 match as shown in FIGS. 7A and 7B, as shown in FIG. However, by changing the color of the image to be printed, it is possible to easily recognize an image whose color matches as shown in FIG.

  The printing apparatus 1 according to the second embodiment has the above-described configuration and executes the printing process. In addition to the effects exhibited by the printing apparatus 1 according to the first embodiment, the printing medium 2 and the print target The overall color tone including the image 3 can be changed as desired by the user.

(Modification)
Although the embodiment of the present invention has been described above, this embodiment is an example, and the scope of application of the present invention is not limited to this. That is, the embodiments of the present invention can be applied in various ways, and all the embodiments are included in the scope of the present invention.

  Although the printing unit 20 includes the ink tank 21 and the print head 22 and performs printing by the ink jet method, the present invention is not limited to this. Printing may be performed by any printing method including a thermal method and a thermal transfer method.

  The movement amount measuring unit 30 includes an LED 31 and an image sensor 32, and the image sensor 32 reads the light that is emitted from the LED 31 and reflected by the printing medium 2, and the movement amount is measured. is not. The movement amount measuring unit 30 may include a roller or a ball disposed on the bottom surface of the housing 10 and may measure the movement amount by measuring their rotation. Further, the moving amount may be measured by including a laser light source and the image sensor 32 reading the laser light irradiated by the laser light source and reflected by the printing medium 2.

  Although it has been described that the color determination unit 40 determines the RGB three-color components of the printing medium 2 and the color comparison unit 62 compares the colors of the three RGB colors, the present invention is not limited to this. The combination of the color determined by the color determination unit 40 and the component of the color compared by the color comparison unit 62 is arbitrary, and the number of components is not limited to three and is arbitrary.

  In addition, when the color comparison unit 62 determines that the color of the printing medium 2 matches the color of the contour line 4, the image changing unit 63 edits the image 3 to be printed and the boundary of the image 3 to be printed. Although the outline 4 is added to the part, it is not limited to this. When the contour line 4 is added, only the contour line 4 may be changed to be a new image 3 to be printed. Accordingly, it is possible to suppress ink consumption by not printing the region where the colors match.

  The printing apparatus 1 may include a plurality of movement amount measurement units 30. FIG. 8A is a side view of the printing apparatus 1 according to this modification, and FIG. 8B is a bottom view thereof. As shown in FIGS. 8A and 8B, the printing apparatus 1 according to this modification includes two movement amount measuring units 30. When there is only one movement amount measuring unit 30, it is not possible to detect a change in orientation of the printing apparatus 1, that is, rotation. By providing the plurality of movement amount measuring units 30, it is possible to detect a change in the orientation of the printing apparatus 1, and it is possible to perform more accurate printing.

  In addition, not only can a configuration for realizing the functions according to the present invention be provided in advance as a printing apparatus, but also an existing printing apparatus or the like can be caused to function as the printing apparatus according to the present invention by applying a program. That is, as a printing apparatus according to the present invention, a program for realizing the functions of the printing apparatus exemplified in the embodiments and modifications is applied so that a CPU that controls the existing printing apparatus can be executed. Can function. The printing method according to the present invention can be implemented using a printing apparatus.

  Moreover, the application method of such a program is arbitrary. The program can be applied by being stored in a computer-readable storage medium such as a flexible disk, a CD (Compact Disc) -ROM, a DVD (Digital Versatile Disc) -ROM, or a memory card. Furthermore, the program can be superimposed on a carrier wave and applied via a communication medium such as the Internet. For example, the program may be posted on a bulletin board (BBS: Bulletin Board System) on a communication network and distributed. The program may be started and executed in the same manner as other application programs under the control of an OS (Operating System) so that the above-described processing can be executed.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the specific embodiments, and the present invention includes the invention described in the claims and the equivalent scope thereof. And are included. Hereinafter, the invention described in the scope of claims of the present application will be appended.

(Appendix 1)
A color discriminating unit for discriminating the color of the printing medium;
The color of the printing medium determined by the color determination unit and the color of the boundary between the non-printed portion of the image to be printed are compared, and the color of the printing medium and the color of the boundary are identical. A color comparison unit that determines whether or not
An image changing unit that changes the image to be printed when the color comparison unit determines that the color of the printing medium matches the color of the boundary; and
A printing unit that prints the image to be printed changed by the image changing unit on the printing medium;
A printing apparatus characterized by that.

(Appendix 2)
The image changing unit adds a contour line to the boundary portion of the image to be printed when the color comparison unit determines that the color of the printing medium matches the color of the boundary portion. ,
The printing apparatus according to Supplementary Note 1, wherein

(Appendix 3)
The image changing unit adds a contour line to the boundary portion of the image to be printed when the color comparison unit determines that the color of the printing medium matches the color of the boundary portion. , Changing the outline as a new image to be printed,
The printing apparatus according to Supplementary Note 1, wherein

(Appendix 4)
The color comparison unit compares the color of the printing medium determined by the color determination unit with the color of the contour line added by the image changing unit, and compares the color of the printing medium and the contour line. Determine if the color matches,
The image changing unit changes the color of the contour line when the color comparing unit determines that the color of the printing medium and the color of the contour line match.
The printing apparatus according to appendix 2 or 3, characterized by the above.

(Appendix 5)
The image changing unit changes the color of the image to be printed when the color comparing unit determines that the color of the printing medium matches the color of the boundary part,
The printing apparatus according to Supplementary Note 1, wherein

(Appendix 6)
In the color comparison unit, an absolute value of a difference between the first component of the color of the printing medium and the first component of the color of the boundary is equal to or less than a threshold value, and the second of the colors of the printing medium The absolute value of the difference between the component and the second component of the boundary color is less than or equal to the threshold, and the difference between the third component of the color of the printing medium and the third component of the color of the boundary When the absolute value is equal to or less than a threshold value, it is determined that the color of the printing medium matches the color of the boundary portion.
The printing apparatus according to any one of appendices 1 to 5, characterized in that:

(Appendix 7)
A moving amount measuring unit for measuring a moving amount and a moving direction of the printing unit with respect to the printing medium;
A print control unit that acquires the movement amount and the movement direction measured by the movement amount measurement unit and controls the printing unit according to the position of the printing unit with respect to the printing medium to print the image to be printed. And comprising
The printing apparatus according to any one of appendices 1 to 6, wherein:

(Appendix 8)
An interface unit for notifying a user when the color comparison unit determines that the color of the printing medium matches the color of the boundary;
The printing apparatus according to any one of appendices 1 to 7, characterized in that:

(Appendix 9)
Determine the color of the print medium,
By comparing the determined color of the printing medium with the color of the boundary between the non-printed portion of the image to be printed, it is determined whether the color of the printing medium and the color of the boundary match. Judgment,
When it is determined that the color of the printing medium and the color of the boundary portion match, the image to be printed is changed,
Printing the changed image to be printed on the printing medium;
A printing method characterized by the above.

(Appendix 10)
On the computer,
Let the color of the print medium be distinguished,
The determined color of the printing medium is compared with the color of the boundary between the non-printed portion of the image to be printed and it is determined whether the color of the printing medium matches the color of the boundary. Let
When it is determined that the color of the printing medium matches the color of the boundary, the image to be printed is changed,
Printing the changed image to be printed on the printing medium;
A program characterized by that.

DESCRIPTION OF SYMBOLS 1 ... Printing apparatus, 2 ... Medium to be printed, 3 ... Image of printing object, 4 ... Contour line, 10 ... Housing | casing (apparatus main body), 11 ... Marker, 20 ... Printing part, 21 ... Ink tank, 22 ... Print head , 23 ... Nozzle, 30 ... Movement amount measurement unit, 31 ... LED, 32 ... Image sensor, 40 ... Color discrimination unit, 50 ... Interface unit, 60 ... Control unit, 61 ... Print control unit, 62 ... Color comparison unit, 63 ... Image changing part, 70 ... Storage part

Claims (10)

A color discriminating unit for discriminating the color of the printing medium;
The color of the printing medium determined by the color determination unit and the color of the boundary between the non-printed portion of the image to be printed are compared, and the color of the printing medium and the color of the boundary are identical. A color comparison unit that determines whether or not
An image changing unit that changes the image to be printed when the color comparison unit determines that the color of the printing medium matches the color of the boundary; and
A printing unit that prints the image to be printed changed by the image changing unit on the printing medium;
A printing apparatus characterized by that. The image changing unit adds a contour line to the boundary portion of the image to be printed when the color comparison unit determines that the color of the printing medium matches the color of the boundary portion. ,
The printing apparatus according to claim 1. The image changing unit adds a contour line to the boundary portion of the image to be printed when the color comparison unit determines that the color of the printing medium matches the color of the boundary portion. , Changing the outline as a new image to be printed,
The printing apparatus according to claim 1. The color comparison unit compares the color of the printing medium determined by the color determination unit with the color of the contour line added by the image changing unit, and compares the color of the printing medium and the contour line. Determine if the color matches,
The image changing unit changes the color of the contour line when the color comparing unit determines that the color of the printing medium and the color of the contour line match.
The printing apparatus according to claim 2, wherein the printing apparatus is a printer. The image changing unit changes the color of the image to be printed when the color comparing unit determines that the color of the printing medium matches the color of the boundary part,
The printing apparatus according to claim 1. In the color comparison unit, an absolute value of a difference between the first component of the color of the printing medium and the first component of the color of the boundary is equal to or less than a threshold value, and the second of the colors of the printing medium The absolute value of the difference between the component and the second component of the boundary color is less than or equal to the threshold, and the difference between the third component of the color of the printing medium and the third component of the color of the boundary When the absolute value is equal to or less than a threshold value, it is determined that the color of the printing medium matches the color of the boundary portion.
The printing apparatus according to claim 1, wherein the printing apparatus is a printer. A moving amount measuring unit for measuring a moving amount and a moving direction of the printing unit with respect to the printing medium;
A print control unit that acquires the movement amount and the movement direction measured by the movement amount measurement unit and controls the printing unit according to the position of the printing unit with respect to the printing medium to print the image to be printed. And comprising
The printing apparatus according to claim 1, wherein the printing apparatus is a printer. An interface unit for notifying a user when the color comparison unit determines that the color of the printing medium matches the color of the boundary;
The printing apparatus according to claim 1, wherein the printing apparatus is a printer. Determine the color of the print medium,
By comparing the determined color of the printing medium with the color of the boundary between the non-printed portion of the image to be printed, it is determined whether the color of the printing medium and the color of the boundary match. Judgment,
When it is determined that the color of the printing medium and the color of the boundary portion match, the image to be printed is changed,
Printing the changed image to be printed on the printing medium;
A printing method characterized by the above. On the computer,
Let the color of the print medium be distinguished,
The determined color of the printing medium is compared with the color of the boundary between the non-printed portion of the image to be printed and it is determined whether the color of the printing medium matches the color of the boundary. Let
When it is determined that the color of the printing medium matches the color of the boundary, the image to be printed is changed,
Printing the changed image to be printed on the printing medium;
A program characterized by that.

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