JP2016132169A - Colorimetry chart, colorimetry device, and recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a colorimetry chart, a colorimetry device and a recording device facilitating detection of an error in colorimetry for a patch array in a check pattern.SOLUTION: A colorimetry chart 60 comprises a check pattern 61, in which a plurality of patch arrays consisting of a plurality of colorimetry patches 62 for colorimetry in a scan direction X are arranged in the scan direction X, are arranged in a transfer direction Y over a plurality of lines. The colorimetry chart 60 further comprises ramp parts 65 inclined in the scan direction X, in which identification patches 63A, 63B detecting a position of colorimetry chart 60 in the transfer direction Y are disposed in the scan direction X.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a color measurement chart, a color measurement device, and a recording device.

  As an example of a recording apparatus, a recording unit that records (prints) a check pattern for color measurement on a medium such as paper to form a color measurement chart, and a conveyance roller that conveys the medium on which the color measurement chart is formed Inkjet printers are also known that include a color measurement unit that performs color measurement of a color measurement chart by scanning in a direction that intersects the medium conveyance direction. The check pattern is configured by arranging a plurality of rows of patch rows formed by arranging a plurality of colorimetric patches in the scanning direction of the colorimetric unit in the medium transport direction.

  In such a recording apparatus, when the medium is tilted with respect to the scanning direction of the color measuring unit, that is, when each patch row of the check pattern is tilted with respect to the scanning direction of the color measuring unit, the color measuring unit is the patch row. In the middle of the patch row in the scanning direction, the colorimetric measurement of the colorimetric patches in the patch row in the adjacent row in the medium transport direction may be performed.

  For such a problem, for example, the print color measurement control device disclosed in Patent Document 1 includes a sensor that detects the inclination of the medium with respect to the scanning direction of the color measurement unit at the front end in the medium conveyance direction, and the medium detected by the sensor. Based on the inclination, the position of the patch column in the first row of the check pattern in the transport direction is adjusted. As a result, the colorimetric unit is prevented from performing colorimetry on patch rows in adjacent rows in the middle of the patch row in the scanning direction.

JP 2012-66591 A

  By the way, due to variations in the outer diameter of the transport roller, eccentricity, and the like, there may be a transport deviation in which the actual transport amount of the medium differs from the transport amount of the medium instructed from the control unit of the recording apparatus. However, the print color measurement control device disclosed in Patent Document 1 detects the inclination of the medium with respect to the scanning direction of the color measurement unit, but does not detect the positional deviation of the medium in the conveyance direction due to the conveyance deviation of the medium. For this reason, in the printing colorimetry control device of Patent Document 1, there is still a possibility of performing colorimetry of patch rows in adjacent rows in the medium transport direction in the middle of the patch row in the scanning direction of the colorimetric unit. There is room for improvement.

  In addition, even when the medium is not transported and the colorimetric unit moves in the row direction of the check pattern, the above-described medium transport misalignment is caused by the positional shift and inclination of the colorimetric chart when the medium is set in the recording apparatus. In some cases, the same problem as the positional deviation of the medium caused by.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a color measurement chart, a color measurement device, and a recording device that can more easily detect a color measurement error in a check pattern patch array. There is to do.

Hereinafter, means for solving the above-described problems and the effects thereof will be described.
In the color measurement chart that solves the above-described problem, a patch row formed by arranging a plurality of color measurement patches that are measured in the first direction with respect to the medium in the first direction is the first. A colorimetric chart comprising check patterns arranged in a plurality of rows in a second direction that intersects a direction, comprising a slope portion that is inclined with respect to the first direction, wherein the slope in the second direction An identification patch for detecting the position of the colorimetric chart is provided, and a plurality of the inclined portions are arranged in the first direction.

  According to this configuration, when the identification patch is configured by a plurality of blocks, the position of the block of each inclined portion measured in the first direction is detected. If there is a difference between the positions of these blocks in the second direction, the inclination of the color measurement chart with respect to the first direction is detected based on the difference. In addition, when the identification patch is formed linearly, the inclination of the color measurement chart with respect to the first direction is calculated by calculating the inclination of the straight line connecting the detection positions in the plurality of inclined portions with respect to the first direction. can do.

  As described above, since the position of the color measurement chart in the second direction and the inclination of the color measurement chart with respect to the first direction can be detected by the identification patch, compared with the conventional color measurement chart, It becomes easier to detect color measurement errors in the patch array.

In the colorimetric chart, it is preferable that a plurality of the identification patches are arranged at intervals in the first direction.
According to this configuration, the difference between the identification patches when the colorimetric chart is inclined with respect to the first direction is larger than when the identification patches are arranged adjacent to each other in the first direction. For this reason, the inclination of the colorimetric chart with respect to the first direction can be detected with high accuracy.

  In the color measurement chart, a plurality of the identification patches are arranged in the second direction, a position overlapping the patch row in the second direction, and within the range of the patch row in the second direction. It is preferable that they are arranged.

  In the configuration in which the medium is conveyed in the second direction and the color of the patch column in each row is measured, the inclination of the color measurement chart (inclination of the check pattern) may increase as the medium is conveyed. In this case, for example, in the configuration in which the inclination of the color measurement chart is detected only by the tip in the medium conveyance direction, a change in the inclination of the color measurement chart accompanying the medium conveyance cannot be detected. For this reason, even if the color measurement of the patch column causes an error in the rows after the intermediate row of the check pattern in the second direction, the error cannot be detected.

  In this regard, according to the present color measurement chart, the identification patches are arranged at positions overlapping the patch row in the second direction, so the color measurement chart (check pattern) in the second direction for each row of the color measurement patches. It is possible to detect the positional deviation and the inclination with respect to the first direction. For this reason, even if the slope of the color measurement chart is excessively large in the middle line of the check pattern, it is possible to detect a color measurement error in the middle line by detecting the slope, and at that point in time the color measurement Can be redone. Therefore, it is possible to reduce the time for color measurement when redoing the color measurement as compared with the case of redoing the color measurement of the check pattern after all the check patterns have been colorimetric.

In the color measurement chart, it is preferable that the identification patch includes a plurality of blocks.
According to this configuration, the degree of inclination of the medium with respect to the first direction can be detected by acquiring the position of the block of the inclined portion. For this reason, it is necessary to calculate the angle formed by the inclined portion and the first direction when calculating the inclination of the colorimetric chart with respect to the first direction, as compared with the case where the identification patch is formed by continuous lines. Therefore, the inclination of the color measurement chart with respect to the first direction can be easily detected.

In the color measurement chart, the identification patch is preferably arranged on both sides of the patch row in the first direction.
According to this configuration, compared to the configuration in which the identification patch is arranged only on one side of the patch row in the first direction, the gap between the inclined portions of the identification patch arranged on both sides of the patch row in the first direction is Since the distance increases, the inclination of the color measurement chart with respect to the first direction can be detected with high accuracy.

  In the colorimetric chart, the identification patch has an identification bar extending in a direction intersecting the first direction, and the identification bar includes both ends of the plurality of inclined portions in the first direction. It is preferable that it is arranged on the outer edge side of the medium with respect to the inclined portion.

  According to this configuration, the start and end of the color measurement of the identification patch are detected by measuring the color of the identification bar arranged on the outer edge side of the medium with respect to the inclined portion. For this reason, when the identification patches are arranged on both sides of the patch row in the first direction, the start and end of color measurement in the first direction can be detected.

  In the colorimetric chart, the identification patch has an identification bar extending in a direction intersecting the first direction, and the colorimetric value of the inclined portion and the colorimetric value of the identification bar are different from each other. preferable.

  According to this configuration, the inclined portion and the identification bar are easily identified based on the difference between the colorimetric value when the inclined portion is color-measured and the colorimetric value when the identification bar is color-measured. be able to. For this reason, since it is avoided to detect the inclination of the color measurement chart with respect to the first direction from the inclined portion and the identification bar, it is possible to suppress a decrease in the detection accuracy of the inclination of the color measurement chart with respect to the first direction. be able to.

In the color measurement chart, it is preferable that the color measurement values of the plurality of identification patches arranged in the second direction are different from each other.
According to this configuration, the row of the identification patch can be detected based on the colorimetric value of the identification patch. For this reason, for example, when an error occurs in the color measurement of the color measurement patch, the line of the color measurement patch in which the error has occurred is determined based on the color measurement value of the identification patch corresponding to the line of the color measurement patch in which the error has occurred. Can be detected.

In the color measurement chart, the identification patch is preferably arranged in the check pattern.
In the color measurement chart, the color measurement value of the identification patch arranged in the check pattern and the color measurement adjacent to the identification patch arranged in the check pattern in the first direction or the second direction. It is preferable that the colorimetric values of the patches are different from each other.

  According to this configuration, the colorimetric patch and the identification patch can be easily changed based on the difference between the colorimetric value when the colorimetric patch is measured and the colorimetric value when the identification patch is measured. Can be identified.

The color measurement device that solves the above problem preferably includes a color measurement unit that performs color measurement on the color measurement chart.
According to this configuration, it is possible to obtain the same effect as that of the colorimetric chart.

A recording apparatus that solves the above problem includes a conveyance unit that conveys the medium, and a recording unit that forms the colorimetric chart.
According to this configuration, it is possible to obtain the same effect as that of the colorimetric chart.

1 is a schematic configuration diagram showing an embodiment of a recording apparatus. The top view which shows one Embodiment of a colorimetry apparatus and the chart for colorimetry. (A) The top view which shows the identification patch of the left side of the chart for colorimetry, (b) The top view which shows the identification patch of the right side of the chart for colorimetry. The top view for demonstrating the detection of an identification patch. The top view for demonstrating the position shift of the chart for colorimetry. The top view for demonstrating the detection of the inclination of the chart for colorimetry when the chart for colorimetry inclines clockwise. The top view for demonstrating the detection of the inclination of the chart for colorimetry when the chart for colorimetry inclines counterclockwise. The top view for demonstrating the detection of the position and inclination of the chart for colorimetry when the chart for colorimetry shifts and it inclines in the clockwise direction. A table showing the relationship between the inclination of a colorimetric chart and a colorimetric detection error. The table which shows the relationship between the inclination of the chart for colorimetry, the colorimetric detection error, and the conveyance correction value. (A) The top view which shows the identification patch of the left side of the color measurement chart of a modification, (b) The top view which shows the identification patch of the right side of the color measurement chart of a modification. The top view which shows the identification patch of a modification. The top view which shows the chart for colorimetry of a modification. The top view which shows the chart for colorimetry of a modification. The top view which shows the chart for colorimetry of a modification. The top view which shows the chart for colorimetry of a modification. (A) The top view which shows the identification patch of the left side of the color measurement chart of a modification, (b) The top view which shows the identification patch of the right side of the color measurement chart of a modification. The top view which shows the chart for colorimetry of a modification. The table which shows the relationship between the inclination of the chart for colorimetry of a modification, a colorimetric detection error, and a conveyance correction value.

  Hereinafter, an embodiment of a recording apparatus will be described with reference to the drawings. Note that the recording apparatus according to the present embodiment includes, for example, an ink jet printer that performs recording (printing) by ejecting ink, which is an example of a liquid, onto a medium. The printer is a so-called serial printer that performs printing by moving the recording unit in a scanning direction in which the printing method intersects the medium conveyance direction.

  As shown in FIG. 1, the recording apparatus 11 includes a leg portion 12 placed on a floor surface, an apparatus main body 13 supported by the leg portion 12, and a long continuous paper S that is an example of a medium. And a feeding unit 14 that feeds the apparatus main body 13. Inside the apparatus main body 13, a recording unit 15 that performs printing in the recording area on the continuous paper S fed by the feeding unit 14, a support unit 16 that supports the continuous paper S in the recording area, and the continuous paper S are provided. A part of the transport unit 17 that transports the paper, and a cutting unit 18 that cuts the printed continuous paper S in the scanning direction X (the width direction of the continuous paper S) that intersects the transport direction Y (the lower left direction in FIG. 1). Is housed.

  The recording unit 15 includes a liquid ejecting unit 22 that ejects ink from a plurality of nozzles 21 onto the continuous paper S, and a recording carriage 23 that holds the liquid ejecting unit 22 and reciprocates along the scanning direction X. Note that the ejection direction Z in which the liquid ejecting unit 22 ejects ink is a direction that intersects (preferably, intersects) the transport direction Y and the scanning direction X. The recording unit 15 may be a so-called line head having a length (width) corresponding to the width direction of the continuous paper S. In this case, the recording carriage 23 may not be provided.

  The liquid ejecting unit 22 is formed with a nozzle row having a plurality of nozzles 21 provided corresponding to inks of a plurality of colors such as cyan, magenta, yellow, and black, for example.

  The transport unit 17 rotates a plurality of transport roller pairs 24, 25, 26, 27 that transport the continuous paper S by rotating while sandwiching the continuous paper S, and these transport roller pairs 24, 25, 26, 27. And a transport motor 28. The transport roller pairs 24 to 26 are disposed inside the apparatus main body 13, while the transport roller pair 27 is disposed outside the apparatus main body 13. The drive source for rotating the transport roller pair 24, 25, 26, 27 is not limited to one transport motor 28. For example, a drive source (transport motor) is provided for each of the transport roller pair 24, 25, 26, 27. May be provided.

  According to the recording apparatus 11 having such a configuration, the conveyance of the continuous paper S to the recording area by the conveyance unit 17 and the ejection of ink onto the continuous paper S by the recording unit 15 are alternately performed, whereby the continuous paper S For example, a check pattern is printed on S. This check pattern includes a plurality of colorimetric patches that are filled with a color expressed by a combination of these multiple color inks. A portion of the continuous paper S on which the check pattern is printed is referred to as a colorimetric chart 60. Then, the continuous paper S that has become the colorimetric chart 60 is transported from the recording region toward the downstream in the transport direction Y by the transport unit 17.

  Further, the recording apparatus 11 includes a color measurement device 19 that measures the color measurement chart 60 printed on the continuous paper S on the downstream side (+ Y direction side) in the transport direction Y with respect to the recording area and the cutting unit 18. ing.

  The color measurement device 19 performs color measurement of a check pattern at a drying unit 31 having a blower fan that dries the color measurement chart 60 in the drying region and a detection position set downstream of the drying region in the transport direction Y. A color measurement unit 32 and a reference plate 33 that supports the color measurement chart 60 at the detection position are provided. The reference plate 33 has a support surface of a reference color (for example, white or black). When the color measurement chart 60 is sufficiently naturally dried before the color measurement chart 60 is conveyed from the recording area to the detection position, the color measurement device 19 may not include the drying unit 31.

  The color measurement unit 32 includes, for example, a detection unit 41 that is a reflective optical sensor, a color measurement carriage 42 that holds the detection unit 41 and reciprocates in the scanning direction X, and a drive for scanning the color measurement carriage 42. A carriage motor 43 serving as a source is provided.

  The detection unit 41 includes a light projecting unit and a light receiving unit. The light receiving unit receives light reflected from the colorimetric chart 60 supported by the reference plate 33, and light is emitted from the light projecting unit. Colorimetric values for obtaining correction values for calibration are detected. The colorimetric values detected by the detection unit 41 are color information based on the Lab color mode in which color values are defined by, for example, white balance, chromaticity, and lightness (L *).

  Further, the recording apparatus 11 includes a control device 50 that controls the recording unit 15, the conveyance unit 17, the cutting unit 18, and the color measurement device 19. The control data is transmitted from the host computer 100 to the control device 50, which is print data, a command that is an execution command for various processes, and the detection result of the detection unit 41. The control device 50 controls the recording unit 15, the conveyance unit 17, the cutting unit 18, and the color measurement device 19 based on the data and commands transmitted from the host computer 100. Further, the control device 50 controls the transport unit 17 and the color measurement device 19 based on the detection result of the detection unit 41.

Next, the configuration of the color measurement chart 60 will be described with reference to FIGS.
As shown in FIG. 2, the check pattern 61 of the colorimetric chart 60 has N rows (N is a line number) arranged in the transport direction Y, where one patch row is composed of a plurality of colorimetric patches 62 arranged in the scanning direction X. A natural number of 2 or more). In the present embodiment, the patch row at the downstream end in the transport direction Y in the check pattern 61 is referred to as the first row patch row R1. Further, a patch column whose number of rows is not specified in the patch columns R1 to Rn is referred to as a patch column Rx. In FIG. 2, the colorimetric patches 62 are not colored. Also, the number of patch columns and the number of colorimetric patches 62 constituting one patch column can be arbitrarily changed.

  On the color measurement chart 60, identification patches 63A and 63B for detecting the position of the color measurement chart 60 (check pattern 61) in the transport direction Y and the inclination with respect to the scanning direction X are printed together with the check pattern 61. The identification patches 63A and 63B are preferably printed in a color having a large difference in reflectance from the background color of the continuous paper S. For example, when the continuous paper S is white, the identification patches 63A and 63B are preferably printed with black ink.

  As shown in FIG. 2, the identification patches 63 </ b> A and 63 </ b> B are arranged on both sides of the check pattern 61 in the scanning direction X. Specifically, the identification patch 63A is arranged on the left side (one end side) of the check pattern 61 in the scanning direction X, and the identification patch 63B is arranged on the right side (the other end side) of the check pattern 61 in the scanning direction X. . A plurality of identification patches 63A and 63B are arranged so as to be in the same position in the transport direction Y. In particular, among the identification patches 63A and 63B, the identification patches 63A and 63B overlapping the check pattern 61 and the transport direction Y are arranged so as to overlap each of the patch rows R1 to Rn in the transport direction Y. The dimensions of the identification patches 63A and 63B in the conveyance direction Y are equal to or smaller than the dimension of the colorimetric patch 62 in the conveyance direction Y, and the identification patches 63A and 63B are arranged in the range of the patch row Rx in the conveyance direction Y. The colorimetric value of the identification patch 63A detected by the detection unit 41 may be different from the colorimetric value of the colorimetric patch 62 at the left end of the patch row Rx adjacent to the identification patch 63A in the scanning direction X. preferable. The colorimetric value of the identification patch 63B detected by the detection unit 41 may be different from the colorimetric value of the colorimetric patch 62 at the right end of the patch row Rx adjacent to the identification patch 63B in the scanning direction X. preferable.

  As shown in FIG. 2, among the plurality of identification patches 63A, 63B, identification patches 63A, 63B at the downstream end in the transport direction Y (hereinafter referred to as “front-end identification patches 63A, 63B”). It is arranged downstream of the check pattern 61 in the transport direction Y.

  As shown in FIG. 3A, the identification patch 63A includes an identification bar 64 that extends in the transport direction Y, and an inclined portion 65 that is inclined with respect to the scanning direction X and the transport direction Y. The identification bar 64 is arranged on the side opposite to the check pattern 61 with respect to the inclined portion 65, that is, on the outer edge side of the continuous paper S in the scanning direction X (see FIG. 2). The inclined portion 65 includes five rectangular blocks 66A to 66E. In the blocks 66A to 66E, adjacent blocks in the scanning direction X are displaced in the transport direction Y. That is, the inclined portion 65 is inclined so that the block 66A on the identification bar 64 side is positioned on the downstream side in the transport direction Y as compared to the block 66E on the check pattern 61 side as it goes downstream in the transport direction Y. . The block 66A of the inclined portion 65 which is the leftmost in the scanning direction X is connected to the identification bar 64, and the block 66E of the inclined portion 65 which is the rightmost in the scanning direction X is the left colorimetric patch 62 of the check pattern 61. It is connected to the left end.

  As shown in FIG. 3B, the identification patch 63B is different from the identification patch 63A in the positional relationship between the inclined portion 65 and the identification bar 64. That is, the identification bar 64 of the identification patch 63B is connected to the block 66E which is the rightmost in the scanning direction X among the blocks 66A to 66E of the inclined portion 65. Of the blocks 66A to 66E of the inclined portion 65 of the identification patch 63B, the leftmost block 66A in the scanning direction X is connected to the right end of the colorimetric patch 62 at the right end of the check pattern 61. As in the case of the identification patch 63A, the inclined portion 65 of the identification patch 63B is inclined so that the block 66A is positioned on the downstream side in the conveyance direction Y rather than the block 66E as it goes to the downstream side in the conveyance direction Y. doing. Due to the configuration of the identification patches 63A and 63B, the distance between the identification bar 64 and the blocks 66A to 66E in the scanning direction X is different, and control is performed based on the difference in the distance between the identification bar 64 and the blocks 66A to 66E. The device 50 can recognize which block the detection unit 41 has passed when the detection unit 41 detects the identification patches 63A and 63B. Therefore, the control device 50 can recognize the position of the color measurement chart 60 in the transport direction Y.

  Next, a method for detecting the positional deviation in the transport direction Y and the inclination with respect to the scanning direction X of the color measurement chart 60 using the identification patches 63A and 63B will be described with reference to FIGS. The positional deviation in the transport direction Y of the color measurement chart 60 is a color measurement chart with respect to the transport amount (hereinafter referred to as “command transport amount”) commanded by the control device 50 (see FIG. 1). Reference numeral 60 denotes a difference in the transport amount actually transported.

  As shown in FIG. 4, when there is no positional deviation in the transport direction Y of the colorimetric chart 60 and no inclination with respect to the scanning direction X, the detection unit 41 detects the same block in the inclined portions 65 of the identification patches 63A and 63B. To do. In the present embodiment, as shown in FIG. 4, the detection unit 41 detects the block 66C of the identification patch 63A and the block 66C of the identification patch 63B.

  As shown in FIG. 5, when the colorimetric chart 60 is displaced in the conveyance direction Y and the colorimetric chart 60 is not inclined with respect to the scanning direction X, the detection unit 41 detects the identification patches 63A and 63B. Although the same block is detected in the inclined portion 65, a block different from the block detected in FIG. 4 is detected. When the color measurement chart 60 is displaced upstream in the conveyance direction Y, that is, when the actual conveyance amount of the color measurement chart 60 is smaller than the command conveyance amount, the detection unit 41 detects the identification patches 63A and 63B. The block on the downstream side in the transport direction Y from the block 66C is detected. For example, as indicated by a one-dot chain line in FIG. 5, the detection unit 41 detects the block 66A of the identification patch 63A and the block 66A of the identification patch 63B. When the colorimetric chart 60 is displaced downstream in the conveyance direction Y, that is, when the actual conveyance amount of the colorimetry chart 60 is larger than the conveyance command amount, the detection unit 41 detects the identification patch 63A, A block on the upstream side in the transport direction Y from the block 66C of 63B is detected. For example, as indicated by a two-dot chain line in FIG. 5, the detection unit 41 detects the block 66E of the identification patch 63A and the block 66E of the identification patch 63B. Here, the positional deviation in the conveyance direction Y of the color measurement chart 60 is detected by the block 66C of the identification patch 63A and the detection unit 41 as a difference between the conveyance amount in which the color measurement chart 60 is actually conveyed with respect to the command conveyance amount. This is indicated by the amount of deviation in the transport direction Y from the position Pc.

  As shown in FIGS. 6 and 7, when the color measurement chart 60 is not displaced in the transport direction Y and the color measurement chart 60 is tilted with respect to the scanning direction X, the detection unit 41 identifies the color measurement chart 60. Different blocks are detected in the patches 63A and 63B. For example, as shown in FIG. 6, when the colorimetric chart 60 is tilted clockwise with respect to the scanning direction X, the detection unit 41 detects the block 66C of the identification patch 63A, but in the identification patch 63B. Block 66B is detected. For example, as shown in FIG. 7, when the colorimetric chart 60 is tilted counterclockwise with respect to the scanning direction X, the detection unit 41 detects the block 66C of the identification patch 63A, but the identification patch 63B. In block 66D, block 66D is detected. 6 and 7, the detection unit 41 detects the block 66C of the identification patch 63A. However, the detection unit 41 may detect the block 66C of the identification patch 63A depending on the inclination of the colorimetric chart 60 with respect to the scanning direction X. Other blocks may be detected.

  As shown in FIG. 8, when the color measurement chart 60 is displaced in the transport direction Y and the color measurement chart 60 is inclined with respect to the scanning direction X, the detection unit 41 detects the identification patch 63A, A different block is detected at 63B. For example, as shown in FIG. 8, in addition to the inclination of the colorimetric chart 60 with respect to the scanning direction X as shown in FIG. Detects the block 66B of the identification patch 63A and detects the block 66A of the identification patch 63B.

  As described above, depending on the combination of the block of the identification patch 63A and the block of the identification patch 63B detected by the detection unit 41, the positional deviation and scanning in the transport direction Y of the colorimetric chart 60 using the identification patches 63A and 63B. The inclination with respect to the direction X and the inclination degree are detected.

  Next, a color measurement method of the color measurement chart 60 by the color measurement unit 32 will be described. In the following description, the constituent elements of the recording apparatus 11 and the colorimetric chart 60 to which reference numerals are attached indicate the constituent elements of the recording apparatus 11 and the colorimetric chart 60 of FIGS.

  In this color measurement method, the transport unit 17 transports the colorimetric chart 60 so that the patch row R1 in the first row of the check pattern 61 is positioned at the detection position Pc of the detection unit 41, and the measurement unit 41 performs the measurement. And a colorimetric process for detecting the positional deviation of the color chart 60 in the transport direction Y and the inclination with respect to the scanning direction X, and measuring the color of the patch row Rx. The transporting process includes a color measurement stopping process for stopping the color measurement based on the inclination of the color measuring chart 60 with respect to the scanning direction X. The color measurement process includes an error detection process for detecting a color measurement error of the patch row Rx based on the positional deviation in the transport direction Y of the color measurement chart 60 and the inclination with respect to the scanning direction X.

  In the transport process, first, the transport unit 17 transports the colorimetric chart 60 so that the identification patches 63A and 63B at the front end are positioned at the detection position Pc of the detection unit 41. Then, the detection unit 41 detects the identification patches 63A and 63B at the tip while scanning in the scanning direction X. Accordingly, the control device 50 determines the detection position Pc and the front identification patches 63A and 63B based on the distance in the scanning direction X between the block of the identification patches 63A and 63B detected by the detection unit 41 and the identification bar 64. The positional relationship in the transport direction Y is acquired. Then, the control device 50 calculates the distance from the detection position Pc to the first patch row R1 of the check pattern 61, and sets the distance as the initial transport amount. Then, the transport unit 17 transports the color measurement chart 60 downstream in the transport direction Y based on the initial transport amount. As a result, the patch row R1 in the first row of the check pattern 61 is positioned at the detection position Pc.

  In the color measurement stop process, when the detection unit 41 detects the inclination of the color measurement chart 60 with respect to the scanning direction X from the identification patches 63A and 63B at the leading ends, the color measurement for the detected scanning direction X is performed. It is determined whether the inclination of the chart 60 is an error. When the control device 50 determines that the inclination of the color measurement chart 60 with respect to the scanning direction X is an error, the control device 50 stops the color measurement of the check pattern 61.

  Whether or not the inclination of the colorimetric chart 60 with respect to the scanning direction X is an error is determined based on a comparison between the blocks of the identification patches 63A and 63B detected by the detection unit 41 and the table of FIG. When the combination of the blocks of the identification patches 63A and 63B detected by the detection unit 41 is the shaded portion of the table of FIG. 9, the inclination of the color measurement chart 60 with respect to the scanning direction X is large, and an error occurs in the color measurement of the check pattern 61. As a result, the inclination of the colorimetric chart 60 with respect to the scanning direction X is determined to be an error.

  In the present embodiment, as shown in the table of FIG. 9, when two or more blocks detected in the identification patch 63A and two blocks detected in the identification patch 63B are separated in the transport direction Y, it is determined as an error. On the other hand, as shown in the table of FIG. 9, if the block detected in the identification patch 63A and the block detected in the identification patch 63B are in a state of less than two in the transport direction Y, the positional deviation in the transport direction Y Is not determined as an error.

  When it is determined that the inclination of the colorimetric chart 60 with respect to the scanning direction X based on the front identification patches 63A and 63B is not an error, the transport unit 17 positions the patch row R1 in the first row of the check pattern 61 at the detection position Pc. Thus, the continuous paper S is conveyed.

  Next, in the color measurement step, the detection unit 41 performs color measurement of the patch row R1 in the first row of the check pattern 61 and detection of the identification patches 63A and 63B corresponding to the patch row R1 as an error detection step.

  At this time, in the error detection step, the detection unit 41 detects the positional deviation in the transport direction Y and the inclination with respect to the scanning direction X of the color measurement chart 60 based on the blocks detected in the identification patches 63A and 63B.

  Then, the control device 50 determines whether or not the color measurement of the patch row R1 in the first row of the check pattern 61 is an error based on the positional deviation in the transport direction Y of the color measurement chart 60 and the inclination with respect to the scanning direction X. . This determination is performed based on a combination of the positional deviation in the conveyance direction Y of the color measurement chart 60 and the inclination with respect to the scanning direction X and the table in FIG. Specifically, when the combination of the blocks of the identification patches 63A and 63B detected by the detection unit 41 is a shaded portion of the table of FIG. 10, the color measurement of the patch row R1 in the first row of the check pattern 61 is determined to be an error. The

  When the control device 50 determines that the color measurement of the patch row R1 in the first row of the check pattern 61 is an error, the control device 50 determines the color measurement values of the color measurement patches 62 of the patch row R1 measured by the detection unit 41. The color measurement of the check pattern 61 is stopped without saving in the memory (not shown).

  On the other hand, when the control device 50 determines that the color measurement of the patch row R1 in the first row of the check pattern 61 is not an error, the color measurement value of each color measurement patch 62 of the patch row R1 measured by the detection unit 41 is obtained. Save to memory. The control device 50 calculates the transport amount of the color measurement chart 60 such that the patch row R2 of the next row is located at the detection position Pc of the detection unit 41, and the color measurement is performed by the transport unit 17 based on the transport amount. The chart 60 is conveyed. At this time, the control device 50 calculates the carry amount by adding the carry correction amount based on the table of FIG. 10 to the command carry amount that is the carry amount necessary for carrying to the next row.

As shown in the table of FIG. 10, the relationship between the positional deviation in the transport direction Y and the inclination with respect to the scanning direction X of the color measurement chart 60 and the transport correction amount is as follows.
When the block 66B is detected in the identification patches 63A and 63B, the conveyance correction amount for one block of the inclined portion 65 downstream in the conveyance direction Y is added to the command conveyance amount.

  When the detection unit 41 detects the block 66B of the identification patch 63A and the block 66C of the identification patch 63B, the conveyance correction amount that is half of one block of the inclined unit 65 downstream in the conveyance direction Y is added to the command conveyance amount. The The same applies when the detection unit 41 detects the block 66C of the identification patch 63A and the block 66B of the identification patch 63B.

  When the detection unit 41 detects the block 66C of the identification patch 63A and the block 66D of the identification patch 63B, a conveyance correction amount that is half of one block of the inclined portion 65 upstream in the conveyance direction Y is added to the command conveyance amount. The The same applies when the detection unit 41 detects the block 66D of the identification patch 63A and the block 66C of the identification patch 63B.

  When the detection unit 41 detects the block 66D of the identification patch 63A and the block 66D of the identification patch 63B, the conveyance correction amount for one block of the inclined portion 65 upstream in the conveyance direction Y is added to the command conveyance amount. .

  Based on the table of FIG. 10, each of the patch columns R2 to Rn-1 is also subjected to colorimetry of the patch column Rx and identification patches 63A corresponding to the patch column Rx by the detection unit 41, as with the patch column R1 in the first row. 63B is detected, and the colorimetric chart 60 is transported to the patch row Rx of the next row based on the detection of the colorimetric error of the patch row Rx and the carry correction amount. When the detection unit 41 finishes the color measurement of the patch row Rn, the color measurement of the color measurement chart 60 ends.

  On the other hand, when the control device 50 determines that the color measurement of the patch row Rx in the middle row of the check pattern 61 is an error, the control device 50 stops the color measurement of the patch row after the patch row Rx, and the color measurement chart by the transport unit 17. 60 is discharged. Then, the operator feeds the color measurement chart 60 again, and performs color measurement again from the patch column Rx in the row where the error is detected. Note that the operator may perform color measurement again from the patch row R1 in the first row.

The operation of the recording apparatus 11 of this embodiment will be described.
Now, in the conveyance direction Y, the conveyance roller pairs 26 and 27 arranged on the upstream side and the downstream side of the color measurement unit 32 may have a processing error of the outer diameter and an assembly error in the conveyance unit 17. The so-called skew feeding in which the color measurement chart 60 varies with respect to the command transport amount due to eccentricity caused by such an error or the color measurement chart 60 is transported in a state inclined with respect to the scanning direction X. May occur.

  In particular, in skew, the degree of inclination of the color measurement chart 60 with respect to the scanning direction X may increase as the color measurement chart 60 is conveyed. As a result, even if an error does not occur in the color measurement of the patch column R1 in the first row of the check pattern 61, an error may occur in the color measurement of the patch row Rx in the intermediate row in the check pattern 61. In such a case, for example, in the configuration in which only the inclination of the patch row R1 of the first row of the check pattern 61 with respect to the scanning direction X is detected, a colorimetric error of the patch row Rx of the intermediate row in the check pattern 61 cannot be detected. .

  Therefore, in the recording apparatus 11 of the present embodiment, the detection unit 41 measures the color of the identification patches 63A and 63B adjacent to the patch row Rx of each row including the intermediate row, and the position of the color measurement chart 60 in the transport direction Y. By detecting the shift and the inclination with respect to the scanning direction X, a colorimetric error is detected for the patch column Rx of each row. For this reason, even if an error occurs in the color measurement of the patch row Rx in the intermediate row in the check pattern 61, the error is detected, and the color measurement of the check pattern 61 is stopped at that time.

According to the recording apparatus 11 of the present embodiment, the following effects can be obtained.
(1) In the color measurement chart 60, two identification patches 63A and 63B having inclined portions 65 in the scanning direction X are arranged. Accordingly, the detection unit 41 can detect a positional shift of the colorimetric chart 60 in the transport direction Y and an inclination with respect to the scanning direction X. Therefore, it becomes easier to detect a color measurement error of the patch row Rx as compared with the conventional color measurement chart.

  (2) The identification patches 63A and 63B are arranged at positions that overlap the check pattern 61 in the scanning direction X and within the range of the patch row Rx in the transport direction Y. As a result, the detection unit 41 can detect the positional deviation in the transport direction Y of the color measurement chart 60 and the inclination with respect to the scan direction X in each patch row Rx, and therefore the scan direction as the color measurement chart 60 is transported. Even when the inclination of the colorimetric chart 60 with respect to X increases, a colorimetric error in the patch row Rx can be detected.

  (3) The identification patches 63A and 63B are arranged on both sides of the check pattern 61 in the scanning direction X. Therefore, compared with the configuration in which the identification patches 63A and 63B are arranged only on one side of the patch row Rx in the scanning direction X, the gap between the inclined portion 65 of the identification patch 63A and the inclined portion 65 of the identification patch 63B is compared in the scanning direction X. Therefore, the inclination of the color measurement chart 60 with respect to the scanning direction X can be detected with high accuracy.

  (4) The identification patches 63 </ b> A and 63 </ b> B include an identification bar 64 arranged on the outer edge side of the continuous paper S with respect to the inclined portion 65. For this reason, when the detection unit 41 detects the identification bar 64 of the identification patches 63A and 63B, the detection unit 41 can detect the start and end of the color measurement of the patch column Rx in each row.

  (5) The inclined portion 65 includes a plurality of rectangular blocks 66 </ b> A to 66 </ b> E that form a shape in which blocks adjacent in the scanning direction X are displaced in the transport direction Y and are inclined overall. Thereby, the inclination degree of the colorimetric chart 60 with respect to the scanning direction X is detected by the combination of the block of the identification patch 63A and the block of the identification patch 63B detected by the detection unit 41. For this reason, it is possible to easily detect the inclination of the color measurement chart 60 with respect to the scanning direction X, as compared with the case where the inclined portion 65 is formed linearly.

  (6) The color measurement chart 60 includes identification patches 63A and 63B at the front end in the transport direction Y. For this reason, an error based on the inclination of the color measurement chart 60 with respect to the scanning direction X can be detected before the color measurement of the check pattern 61 is started, and unnecessary color measurement is suppressed.

The present embodiment may be changed to another embodiment as described below.
The color measurement value detected by the detection unit 41 of the color measurement unit 32 of the above embodiment may be at least one of hue, saturation, and brightness instead of chromaticity and brightness. The colorimetric value may be a value obtained by adding a density value to chromaticity and lightness.

-In identification patch 63A, 63B of the said embodiment, the number of blocks 66A-66E of the inclination part 65 may be 2-4 pieces or 6 pieces or more.
-In the said embodiment, shapes other than rectangular shapes, such as round shape, may be sufficient as the shape of blocks 66A-66E. Further, the blocks 66A to 66E may have a plurality of different shapes such as a round shape, a triangular shape, and a quadrangular shape.

  In the identification patch 63A of the above embodiment, the identification bars 64 of the identification patches 63A adjacent in the transport direction Y may be connected. The identification patch 63B can be similarly changed.

In the identification patch 63A of the above embodiment, as shown in FIG. 11A, the identification bar 64 may be added so as to be adjacent to the right side of the block 66E of the inclined portion 65.
In the identification patch 63B of the above embodiment, as shown in FIG. 11B, the identification bar 64 may be added so as to be adjacent to the left side of the block 66A of the inclined portion 65.

  -You may change the identification patch 63A, 63B of the said embodiment into the identification patch 70 shown in FIG. The identification patch 70 includes two identification bars 71 corresponding to the identification bars 64, and a first inclined portion 72 and a second inclined portion 73 formed between the scanning directions X of the two identification bars 71. Yes. The first inclined portion 72 inclines toward the upstream side in the transport direction Y from the left identification bar 71 toward the right identification bar 71 in the scanning direction X. The second inclined portion 73 inclines toward the downstream side in the transport direction Y from the first inclined portion 72 toward the right identification bar 71 in the scanning direction X. According to this configuration, the detection unit 41 (see FIG. 2) detects the block 74 of the first inclined unit 72 and the block 74 of the second inclined unit 73, whereby the position in the transport direction Y of the colorimetric chart 60 is detected. Deviation and inclination with respect to the scanning direction X can be detected.

  In the color measurement chart 60 of the above embodiment, as shown in FIG. 13, the identification patches 63A and 63B at the tip may be changed to the identification patches 63A and 63B shown in FIGS. According to this configuration, the start of color measurement and the end of color measurement of the identification patch 63A can be detected by the two identification bars 64 of the identification patches 63A and 63B. For this reason, the reading of the colorimetric value by the detection unit 41 (see FIG. 2) can be stopped until the colorimetric start of the identification patch 63B after the colorimetry of the identification patch 63A.

  In the color measurement chart 60 of the above embodiment, as shown in FIG. 14, each of the identification patches 63A and 63B may be arranged on one side (right side in FIG. 14) of the check pattern 61.

  In the color measurement chart 60 of the above-described embodiment, as shown in FIG. 15, only the downstream side of the check pattern 61, that is, only the tip identification patches 63A and 63B may be arranged. In this case, as shown in FIG. 15, the tip identification patches 63 </ b> A and 63 </ b> B may be arranged inside the check pattern 61 in the scanning direction X. 15 may be disposed closer to the center of the check pattern 61 in the scanning direction X.

  In the color measurement chart 60 in FIGS. 13 to 15, the identification patches 63A and 63B are shown in FIGS. 11A, 11B, or 12 instead of the identification patches 63A and 63B in FIGS. The identification patches 63A and 63B may be changed. When the identification patches 63A and 63B shown in FIG. 12 are changed, one of the identification patches 63A and 63B may be omitted.

  In the color measurement chart 60 of the above embodiment, as shown in FIG. 16, one of the identification patches 63A and 63B (the identification patch 63B in FIG. 16) is arranged inside the check pattern 61 in the scanning direction X. Also good. In this case, the colorimetric values of the colorimetric patches 62 adjacent to the identification patches 63A, 63B in the scanning direction X and the colorimetric values of the colorimetric patches 62 adjacent to the identification patches 63A, 63B in the transport direction Y are the identification patches 63A, 63B. It is preferably different from the colorimetric value of 63B. According to this configuration, since the colorimetric values of the identification patches 63A and 63B are different from the colorimetric values of the colorimetric patch 62, the identification patches 63A and 63B and the colorimetric patch 62 can be easily identified. One of the colorimetric values of the colorimetric patches 62 adjacent to the identification patches 63A and 63B in the scanning direction X and the colorimetric values of the colorimetric patches 62 adjacent to the identification patches 63A and 63B and the conveyance direction Y are identified. A configuration different from the colorimetric values of the patches 63A and 63B may be used.

  Note that the identification patches 63A and 63B shown in FIGS. 11A and 11B may be used instead of the identification patches 63A and 63B shown in FIG. Further, the identification patch 63B arranged inside the check pattern 61 in the scanning direction X may be changed to the identification patch 63B shown in FIG. In this case, the identification patch 63A may be omitted.

  In the identification patches 63A and 63B of the above embodiment, as shown in FIGS. 17A and 17B, the colorimetric value of the identification bar 64 and the colorimetric value of the inclined portion 65 may be different. According to this configuration, the identification bar 64 and the inclined portion 65 can be easily identified based on the colorimetric value of the identification bar 64 and the colorimetric value of the inclined portion 65. For this reason, for example, the error of detecting the inclination of the colorimetric chart 60 with respect to the scanning direction X based on the identification bar 64 and the inclined portion 65 of the identification patch 63B instead of the blocks 66A to 66E of the inclined portion 65 of the identification patch 63A. Is suppressed from occurring. Accordingly, it is possible to suppress a decrease in the detection accuracy of the inclination of the colorimetric chart 60 with respect to the scanning direction X.

  In the color measurement chart 60 of the above embodiment, as shown in FIG. 18, the color measurement values of the identification patches 63A and 63B in the patch column Rx of each row may be different. According to this configuration, the number of lines of the identification patches 63A and 63B can be detected based on the colorimetric values of the identification patches 63A and 63B. Therefore, for example, when an error occurs in the color measurement of the patch column Rx, the patch in which the error has occurred based on the information of the color measurement values of the identification patches 63A and 63B corresponding to the row of the patch column Rx in which the error has occurred. The row of column Rx can be detected.

  The colorimetric values of the identification patches 63A and 63B preferably change regularly, for example, gradually increasing toward the downstream side in the transport direction Y. Thereby, based on the colorimetric values of the identification patches 63A and 63B, it is possible to more easily detect the row of the patch column Rx in which an error has occurred.

  In the color measurement chart 60 of the above embodiment, the identification patches 63A and 63B may not be arranged in each row of the patch column Rx. For example, the color measurement chart 60 in which the identification patches 63A and 63B are arranged in the odd rows of the patch row Rx may be used. In short, the arrangement of the identification patches 63A and 63B that can detect the inclination of the color measurement chart 60 with respect to the scanning direction X in the patch row Rx in the middle row of the check pattern 61 and the positional deviation in the transport direction Y is sufficient.

  In the color measurement chart 60 of the above-described embodiment, the identification patches 63A and 63B arranged at positions overlapping the check pattern 61 in the transport direction Y may be omitted. That is, the color measurement chart 60 includes only the identification patches 63A and 63B at the tip. Also with this configuration, the effects (1), (5), and (6) of the above embodiment can be obtained.

  In the color measurement chart 60 of the above embodiment, three or more identification patches may be arranged in the scanning direction X. In short, the number of the identification patches is not limited as long as the detection unit can detect the identification patches and detect the positional deviation in the transport direction Y and the inclination with respect to the scanning direction X of the colorimetric chart 60.

  In the transport unit 17 of the recording apparatus 11 of the above embodiment, the transport roller pairs 26 and 27 are arranged in the scanning direction X, and are divided into, for example, a right roller pair and a left roller pair in the scanning direction X. You may comprise a roller pair. In this case, a conveyance motor 28 that drives the plurality of roller pairs is connected to each of the plurality of right-side roller pairs and the plurality of left-side roller pairs via a gear mechanism (not shown). Accordingly, the operations of the plurality of right-side roller pairs and the left-side plurality of roller pairs are individually controlled by the respective transport motors 28.

  In such a configuration of the transport roller pairs 26 and 27, when a positional shift of the color measurement chart 60 in the transport direction Y and an inclination with respect to the scanning direction X are detected, a correction method for the color measurement chart 60 is as follows. You may change to That is, using the correction table shown in FIG. 19, the positional deviation in the transport direction Y and the inclination with respect to the scanning direction X of the color measurement chart 60 are corrected by each transport motor 28. 19 is stored in a memory (not shown) of the control device 50. Hereinafter, parts different from the correction table of FIG. 10 will be described.

  As shown in FIG. 19, when the detection unit 41 detects the block 66B of the identification patch 63A and the block 66C of the identification patch 63B, the plurality of left roller pairs have the inclined portion 65 downstream in the transport direction Y. The conveyance correction amount for one block is added to the command conveyance amount. On the other hand, since the conveyance correction amount is “0” for the plurality of right-side roller pairs, the command conveyance amount remains unchanged.

  When the detection unit 41 detects the block 66B of the identification patch 63A and the block 66D of the identification patch 63B, the conveyance correction for one block of the inclined portion 65 on the downstream side in the conveyance direction Y is performed in the plurality of left roller pairs. The amount is added to the command transport amount. On the other hand, in the plurality of right-side roller pairs, the conveyance correction amount for one block of the inclined portion 65 upstream in the conveyance direction Y is added to the command conveyance amount.

  When the detection unit 41 detects the block 66C of the identification patch 63A and the block 66B of the identification patch 63B, since the conveyance correction amount is “0” for the plurality of left roller pairs, the command conveyance amount remains unchanged. On the other hand, in the plurality of right-side roller pairs, the conveyance correction amount for one block of the inclined portion 65 downstream in the conveyance direction Y is added to the command conveyance amount.

  When the detection unit 41 detects the block 66C of the identification patch 63A and the block 66D of the identification patch 63B, the plurality of roller pairs on the left side has the command conveyance amount because the conveyance correction amount is “0”. On the other hand, in the plurality of right-side roller pairs, the conveyance correction amount for one block of the inclined portion 65 upstream in the conveyance direction Y is added to the command conveyance amount.

  When the detection unit 41 detects the block 66D of the identification patch 63A and the block 66B of the identification patch 63B, the conveyance correction for one block of the inclined portion 65 toward the upstream side in the conveyance direction Y is performed on the plurality of left roller pairs. The amount is added to the command transport amount. On the other hand, in the plurality of right-side roller pairs, the conveyance correction amount for one block of the inclined portion 65 downstream in the conveyance direction Y is added to the command conveyance amount.

  When the detection unit 41 detects the block 66D of the identification patch 63A and the block 66C of the identification patch 63B, the conveyance correction for one block of the inclined portion 65 toward the upstream side in the conveyance direction Y is performed on the plurality of left roller pairs. The amount is added to the command transport amount. On the other hand, since the conveyance correction amount is “0” for the plurality of right-side roller pairs, the command conveyance amount remains unchanged.

  According to this configuration, when the inclination of the color measurement chart 60 with respect to the scanning direction X is detected using the correction table of FIG. 19, the correction is performed so that the inclination becomes small. Therefore, the color measurement of the patch row Rx in the next row is performed. Decreases the probability of an error.

  In the above embodiment, the colorimetric patches 62 constituting the patch row Rx of the check pattern 61 are not limited to a rectangular shape, and can be changed to an arbitrary shape such as a circular shape. Further, the length of the patch row Rx in the scanning direction X or the number of colorimetric patches 62 constituting the patch row Rx may be different for each row.

  In the above embodiment, the patch row Rx is constituted by one colorimetric patch 62 extending in the scanning direction X, and the colorimetric unit 32 detects a change (gradation) of the color or density of the colorimetric patch 62 in the scanning direction X. You may make it do.

  In the above embodiment, the detection unit 41 may perform detection while scanning in the forward direction in the direction opposite to the scanning direction X (the direction from the right side to the left side in the scanning direction X in FIG. 2). Detection may be performed in both the forward scan and the backward scan in the opposite direction.

  In the above embodiment, the identification patches 63A and 63B arranged in the scanning direction X are detected by the detection unit 41 in detecting the inclination of the colorimetric chart 60 with respect to the scanning direction X and the positional deviation of the colorimetric chart 60 in the transport direction Y. The positions in the transport direction Y may be different from each other as long as no excessive influence is generated.

In the above embodiment, the color measuring device 19 may be a separate body from the recording device 11.
In the above embodiment, the recording device 11 may be a dot impact printer as long as it can print on a medium. Further, the recording device 11 is not limited to a configuration having only a printing function, and may be a multifunction device.

  The medium is not limited to the continuous paper S, and may be a cut paper, a resin film, a metal foil, a metal film, a resin-metal composite film (laminate film), a woven fabric, a nonwoven fabric, a ceramic sheet, or the like. Good.

  The state of the liquid ejected as a minute amount of liquid droplets from the liquid ejecting unit 22 includes those that are tailed in a granular shape, a tear shape, or a thread shape. The liquid here may be any material that can be ejected from the liquid ejecting section 22. For example, it may be in the state when the substance is in a liquid phase, and includes liquids with high or low viscosity, sols, gels, other inorganic solvents, organic solvents, solutions, and fluids such as liquid resins. Shall be. Further, not only a liquid as one state of a substance but also a particle in which solid particles such as a pigment are dissolved, dispersed or mixed in a solvent is included. When the liquid is an ink, the ink includes various liquid compositions such as general water-based ink and oil-based ink, gel ink, and hot-melt ink.

Furthermore, the technical idea grasped | ascertained from the said embodiment and each modification is described below.
(I) The colorimetric value of the identification patch and the colorimetric value of the colorimetric patch adjacent to the identification patch are different from each other. chart.

  According to this configuration, the identification patch and the colorimetric patch can be easily identified based on the difference between the colorimetric value of the identification patch and the colorimetric value of the colorimetric patch.

  DESCRIPTION OF SYMBOLS 11 ... Recording apparatus, 15 ... Recording part, 17 ... Conveyance part, 19 ... Colorimetry apparatus, 32 ... Colorimetry part, 60 ... Chart for colorimetry, 61 ... Check pattern, 62 ... Colorimetric patch, 63A, 63B ... Identification Patch, 64 ... identification bar, 65 ... inclination part, 66A to 66E ... block, 70 ... identification patch, 71 ... identification bar, 72 ... first inclining part as an example of inclining part, 73 ... first example of inclining part 2 inclined portions, 74... Block, R1 to Rn, Rx... Patch array, X... Scanning direction as an example of the first direction, Y... Transport direction as an example of the second direction, S. Continuous paper.

Claims (12)

A patch row formed by arranging a plurality of colorimetric patches for colorimetry in the first direction with respect to the medium in the first direction has a plurality of rows in a second direction intersecting the first direction. A colorimetric chart comprising check patterns arranged over a range,
An identification patch that includes an inclined portion that is inclined with respect to the first direction, and that detects a position of the color measurement chart in the second direction;
A plurality of the inclined portions are arranged in the first direction. The color measurement chart according to claim 1, wherein a plurality of the identification patches are arranged at intervals in the first direction. A plurality of the identification patches are arranged in the second direction, are arranged so as to overlap the patch row in the second direction, and are arranged in the range of the patch row in the second direction. The color measurement chart according to claim 1 or 2. The color measurement chart according to claim 1, wherein the identification patch includes a plurality of blocks. 5. The color measurement chart according to claim 3, wherein the identification patch is arranged on both sides of the patch row in the first direction. The identification patch has an identification bar extending in a direction intersecting the first direction;
The said identification bar is arrange | positioned in the said 1st direction at the outer edge side of the said medium with respect to the inclination part used as the both ends of these inclination parts, The any one of Claims 1-5 characterized by the above-mentioned. The color measurement chart according to one item. The identification patch has an identification bar extending in a direction intersecting the first direction;
The colorimetric chart according to claim 1, wherein a colorimetric value of the inclined portion and a colorimetric value of the identification bar are different from each other. The colorimetric chart according to claim 3, wherein the colorimetric values of the plurality of identification patches arranged in the second direction are different from each other. The chart for colorimetry according to claim 1, wherein the identification patch is arranged in the check pattern. A colorimetric value of an identification patch arranged in the check pattern and a colorimetric value of a colorimetric patch adjacent to the identification patch arranged in the check pattern in the first direction or the second direction. The color measurement chart according to claim 9, wherein the color measurement charts are different from each other.   A colorimetric device comprising a colorimetric unit that performs colorimetry on the colorimetric chart according to claim 1. A transport unit for transporting the medium;
A recording apparatus comprising: a recording unit that forms the colorimetric chart according to claim 1 by performing recording on the conveyed medium.