JP2019089298A - Image recording device and image recording method - Google Patents

Abstract

To reduce biased use of partial recording part of the multiple recording parts without occurrence of a discrepancy with respect to a recording medium disposed with a development view.SOLUTION: An image recording device records an image on a recording medium while changing an imposing position so as to prevent a relative imposing position from varying to the recording medium disposed with a development view.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an image recording apparatus and an image recording method capable of recording an image on a recording medium.

  In a recording apparatus for recording an image on a recording medium, the recording head which is consumed as the recording head for recording the image is used is deteriorated and the recording quality is deteriorated. Therefore, it is necessary to replace the consumed recording head. In a recording head that ejects ink by a plurality of nozzle arrays to form an image, the nozzles used are biased by the formed image, and only the nozzles that are biased are consumed and the other nozzles are exhausted. Even if not, it was not economical because the entire nozzle had to be replaced with the recording head.

  Therefore, in Patent Document 1, the print data is divided into a plurality of areas corresponding to the nozzle array, and the print history is accumulated for each area to determine the bias of the print amount between the areas, and the print amount has bias. In such a case, it has been proposed to reduce the deviation of the recording amount between the nozzles by reversing the image.

JP, 2011-118203, A

  However, in the technique of Patent Document 1, when an image is recorded in the case of recording an image on a recording medium of a development arrangement in which a plurality of quadrangles of different sizes are combined, as shown in FIG. When the image is rotated by 180 ° with respect to the images (1) to (12) imposed according to the folding position represented by the solid line, as shown in (B), the folding position represented by the solid line On the other hand, the imposition position of the image is deviated as shown by the dotted line and wrinkles are generated with respect to the folding position of the recording medium, which may cause a problem when assembling the recording medium of the development view arrangement.

  The present invention has been made in view of the above circumstances, and can reduce partial use of some recording units of a plurality of recording units without causing wrinkles to the recording medium of the development arrangement. It is an object of the present invention to provide an image recording apparatus and an image recording method.

  According to the present invention for achieving the above object, there are provided recording means for recording an image on a recording medium, and imposition of the image recorded by the recording means so that the relative imposition position does not change with respect to the recording medium in the development arrangement. According to another aspect of the present invention, there is provided an image recording apparatus including: changing means for changing a position.

  Further, according to the present invention, there is provided an image recording method of recording an image on the recording medium by changing the imposition position so that the relative imposition position does not change with respect to the recording medium of the development view arrangement.

  According to the present invention, it is possible to reduce the partial use of the recording parts of the plurality of recording parts without causing wrinkles to the recording medium of the development view arrangement.

FIG. 1 is a schematic cross-sectional view showing an entire configuration of an image recording system according to an embodiment of the present invention. It is a block diagram which shows the control structure of the printer 100 in FIG. 1 based on embodiment of this invention. It is comparative explanatory drawing in the case where the imposition position concerning the embodiment of the present invention is changed, and the case where it does not change. It is a flowchart which shows operation | movement of CPU101 in FIG. 2 based on embodiment of this invention. It is an explanatory view explaining the propriety of change of the imposition position concerning an embodiment of the present invention. It is an explanatory view explaining a change method of an imposition position concerning an embodiment of the present invention. It is explanatory drawing explaining the subject of the prior art in the case of recording an image on the recording medium of expanded drawing arrangement | positioning.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. The following embodiments do not limit the present invention according to the claims, and all combinations of features described in the following embodiments are limited to those essential to the solution means of the present invention. Absent.

  FIG. 1 is a schematic cross-sectional view showing the entire configuration of a recording system according to the present embodiment. In this embodiment, as an example of the image recording apparatus, a printer which records image information on a recording medium by an inkjet method will be described.

  In FIG. 1, the printer 100 includes a printer body 10 and a feeding unit 80 for feeding the recording medium P to the printer body 10. The feeding unit 80 is provided with a loading tray 81 for loading a bundle of recording media P, and the loading tray 81 is moved in the direction of the arrow Z in order to move the recording medium P on the uppermost surface of the bundle to the feeding position. Move to The recording medium P moved to the feeding position is fed in the direction of arrow A at a predetermined timing by the feeding roller 82, and the liquid (ink) is discharged from the recording head 30, whereby an image is printed on the recording medium P. Is recorded in Then, the recording medium P on which the image is recorded is stacked on the discharge tray 90.

  Print data to be recorded on the recording medium P is transmitted from the host computer (hereinafter also referred to as a host PC) 200 to the printer main body 10 via the print cable L. The printer main body 10 is provided with an operation panel 20 for performing various settings and notifying an operator of the state of the printer 100.

  The recording head 30 is a full line provided with nozzle arrays of four colors of black Bk, cyan C, magenta M, and yellow Y in which a plurality of discharge ports as a plurality of recording portions are arrayed over the entire width of the recording medium P The recording head of the type is detachably attached to the inside of the printer main body 10 by a carriage or the like, and an image can be recorded on the recording medium P in full color. In the present embodiment, although the above four colors are described, colors other than the above four colors such as light cyan, or special color ink colors corresponding to a specific purpose may be included. Below the recording head 30, a cap unit 40 for protecting the ejection ports of the recording head 30 in order from the top, a conveyance unit 50 for conveying the recording medium P, and four color ink tanks 60 for supplying the ink to the recording head 30, The cap unit 40 is provided with a recovery tank 70 for storing the recovered ink.

  The bundle of recording media P placed on the loading tray 81 of the feeding unit 80 is moved in the direction of arrow Z by the driving force of a lifting motor (not shown), and is fed one by one to the printer body 10 by the feeding roller 82. Will be sent. When the recording is continuously performed, the feed roller 82 is driven at a predetermined interval to feed the recording medium P to the printer main body 10. Note that the recording medium P in the present embodiment is a recording medium on which the processing of the folding position, that is, the processing of the developed view arrangement is performed in advance.

  The recording medium P fed to the printer main body 10 is detected by the inlet sensor 51 and conveyed to the position of the recording head 30 by the conveyance belt 52 rotationally driven by the driving force of a conveyance motor (not shown). The transport belt 52 is provided with suction holes, and the recording medium P is sucked onto the transport belt 52 by being sucked by a suction fan (not shown) provided below the transport belt 52. Further, the transport position of the recording medium P is controlled by an encoder (not shown) that rotates in synchronization with the rotation of the transport belt 52.

  The recording medium P on which recording has been performed by the recording head 30 is detected by the outlet sensor 53, and is discharged from the conveyance belt 52 to the discharge tray 90. Then, when the last recording medium P is discharged, the drive of the drive belt 52 is stopped.

  FIG. 2 is a block diagram showing a control configuration of the printer 100 of FIG. In FIG. 2, a CPU 101 that controls the entire printer incorporates a ROM 102 and a RAM 103. The ROM 102 is a read only storage element in which various programs and data for recording an image are written. The processing of the flowchart to be described later of the CPU 101 is performed by executing the processing program stored in the ROM 102. The RAM 103 is a storage element capable of writing and erasing, holds a program read from the ROM 102, and writes and erases processing data and operation results generated in the process of image recording as needed. An EEPROM 104 is a storage area for storing setting values of the apparatus and the operator.

  The CPU 101 converts print data input from the host PC 200 of FIG. 1 into ejection information of ink ejected from the recording head 30 by the image processing circuit 105. Then, the recording head 10 is driven via the head driving circuit 106 to eject ink onto the recording medium.

  The CPU 601 drives the feed motor 109 via the motor driver 107 in parallel with image processing and head driving to feed the recording medium P from the feed unit 80 of FIG. 1 to the printer main body 10. When the recording medium P fed to the printer main body 10 is detected by the entrance sensor 51, the CPU 601 drives the conveyance motor 108 via the motor driver 107 to convey the recording medium P to the position of the recording head 30.

  The CPU 601 discharges ink from the recording head 30 at the timing when the recording medium P reaches the recording head 10 and performs recording. When the rear end of the recording medium on which the image is recorded passes the exit sensor 53 of FIG. 1, the CPU 101 stops the driving of the conveyance motor.

  Further, the CPU 101 receives an instruction of the operator via the operation panel 20, and notifies the operator of the operating state of the printer 100.

  FIG. 3 is a diagram contrasting and showing the increase in the cumulative recording amount of each nozzle of the recording head accompanying printing when the imposition position with respect to the recording medium in the development arrangement according to the present embodiment is not changed is there.

  In FIG. 3, (A) shows the imposition of the original in which the imposition positions (1) to (12) are not changed with respect to the recording medium P in the development view arrangement. Reference numeral 311 denotes a graph showing the accumulated recording amount of each nozzle of the recording head at a point in time before printing on the recording medium P in the development view arrangement divided into predetermined areas. Reference numeral 312 denotes a graph showing the recording amount of each nozzle in printing on the recording medium P in the developed view arrangement divided into predetermined areas. From these, when printing is performed at the original imposition position on the recording medium P in the development layout, the accumulated recording amount of each nozzle of the recording head becomes the accumulated recording amount indicated by the graph 313.

  (B) shows the imposition position when the imposition positions (1) to (12) shown in (A) are slid in the right direction by two planes with respect to the recording medium P in the development view arrangement. . In this case, the recording amount divided for each predetermined area in printing on the recording medium P in the developed view arrangement is as shown in the graph 314, and the recording amount for each predetermined area is different from the graph 312 of (A). Therefore, when printing is performed by changing the imposition position on the recording medium P in the development view arrangement, the accumulated recording amount is as shown in the graph 315, and the maximum value of the accumulated recording amount is reduced compared to the graph 312. I understand that.

  Since the imposition position of (B) does not change relative imposition position to the imposition position of (A), the recording medium P of the developed view arrangement also in the case of (A) and the case of (B) The result is an identical imposition solid 321 shown in (C), and the influence of wrinkles due to the change in imposition position does not occur. The imposition positions (5), (7), (9) and (11) shown in (A) and (B) are imposition positions (6), (8) and (10) when assembled. Because of the arrangement to be hidden by (12), it is not shown in (C).

  Next, the operation in the case where printing with a change in the imposition position is performed on the recording medium P in the developed layout in the configuration of FIGS. 1 and 2 will be described according to the flowchart of the CPU 101 shown in FIG.

  When an instruction for image recording is given from the operator, the CPU 101 calculates the recording amount for each area of each nozzle in the recording head 10 shown in FIG. 3 in step S101, and the result is used for each nozzle of the recording head 10 in step S102. The accumulated recording amount after the image recording is calculated by adding up with the accumulated recording amount up to this point. Next, in step S103, it is determined whether or not the imposition position can be changed with respect to the recording medium P in the development view arrangement. Depending on the development layout of the recording medium P, if the imposition position is changed, the relative imposition position does not become the same as the original imposition position with respect to the development media in the development layout, and wrinkles are generated at the folding position and the imposition position. It may happen.

  For example, the recording medium 401 in the development view arrangement of FIG. 5A is a development view in which no crease is generated in the folding position and the imposition position even if the imposition positions (1) to (5) of the image are rotated by 180 °. Although the arrangement of the recording medium 402 in the developed drawing arrangement of (B) is a developed drawing arrangement that causes wrinkles at the folding position and the imposition position, in such a case, in step S103 In step S112, the original print data is expanded as it is into a print image, and the print image is printed in step S113.

  If it is determined in step S103 that the imposition position can be changed, the process proceeds to step S104, and an image in which the imposition position is changed is generated. The method of changing the imposition position assumes that there is no change in the relative position of the surface when assembling the developed view. For example, the method of changing the long side faces, the short side faces, and changing the order of the upper, lower, left, and right sides so as not to change the original order; If not, it may be a method of sliding one face at a time next to the other. After generation of the image whose imposition position has been changed, the recording amount for each nozzle area in the recording head 10 of the image whose imposition position is changed is calculated in steps S105 and S106 as in steps S101 and S102, and is recorded The accumulated recording amount after image recording when the imposition position is changed is calculated by adding up with the accumulated recording amount of each nozzle of the head 10 so far.

  Then, in step S107, the cumulative recording amount when the imposition position calculated in step S102 is not changed and the maximum value of the cumulative recording amount when the imposition position calculated in step S107 is changed are extracted respectively, and in step S108 These extracted maximum values are compared, and if the cumulative recording amount maximum value before imposition change is smaller, it is determined that there is no effect of changing the imposition, and the process proceeds to step S112 to print the original print data Is directly developed into a print image, and the print image is printed in step S113.

  If it is determined in step S108 that the cumulative recording amount maximum value after imposition change is smaller, the deviation of the recording amount of each nozzle in the recording head 10 can be reduced by changing the imposition position, and in step S109 The operation panel 10 confirms with the operator whether or not printing with the imposition position changed is performed.

  Then, if the operator does not select the printing in which the imposition position has been changed by using the operation panel 10, the process proceeds from step S110 to step S112, and the original print data is expanded as it is into a print image, and the printing is performed in step S113. Print the image.

  On the other hand, when the operator selects printing in which the imposition position has been changed by using the operation panel 10, the print data is converted into a print image in which the imposition position is changed and developed in step S111, and the imposition is performed in step S113. Print the print image whose position has been changed.

  Finally, in step S114, the accumulated recording amount of the recording head is updated, and the image recording is ended.

  According to the present embodiment, since the image at the imposition position where the maximum value of the cumulative recording amount of the print head is small is used as the print image in step S108, the bias of each nozzle used in the print head can be reduced. .

  In the present invention, the change of the imposition position is the slide or rotation of the surface position, and further, the combination of the slide and rotation of the surface position of the imposition position maintains the relative imposition position Even if it is such, it is applicable.

  For example, when assembling a recording medium in a development view arrangement, there are many cases where the front and back images have the same design. Therefore, even if the faces of the imposition positions (2) and (4) are interchanged in the developed drawing arrangement of the recording medium P shown in FIG. 3, the case where the deviation of the recording amount of each nozzle in the recording head can not be reduced is assumed. Ru. In such a case, it is preferable to change the imposition position taking account of the rotation of the image. That is, in FIG. 6, (A) shows imposition positions (1) to (12) shown in (A) of FIG. 3, and (B) indicates the imposition positions (1) to (12). ) The whole is rotated 180 degrees. However, this alone results in a surface arrangement in which the imposition position indicated by the dotted line does not match the folding position of the solid line previously processed on the recording medium. Therefore, as shown in (C), the imposition positions (1) to (12) are further changed so that even one surface in the lateral direction is even. As a result, the same relative imposition position as before the imposition position change of (A) is made, so when the recording medium of this developed view arrangement is assembled, the same solid as before the imposition position change shown in (D) 321 can be assembled.

  Further, in the above embodiment, the change of the imposition position with respect to the recording medium of the development arrangement when recording an image by the ink jet printer has been described as an example, but the present invention is a printer other than the ink jet method Furthermore, even recording apparatuses other than printers can be widely applied as long as the recording is performed by imposition corresponding to the layout of the development.

DESCRIPTION OF SYMBOLS 10 ... Printer main body 20 ... Operation panel 30 ... Recording head 40 ... Cap unit 50 ... Conveyance unit 60 ... Ink tank 70 ... Recovery tank 80 ... Feeding unit 90 ... Discharge tray 100 ... Printer 101 ... CPU
200 Host computer L Print cable

Claims (8)

Recording means for recording an image on a recording medium;
Changing means for changing the imposition position of the image to be recorded by the recording means so that the relative imposition position does not change with respect to the recording medium of the development view arrangement;
An image recording apparatus comprising:   The changing unit rotates the imposition position of the image recorded by the recording unit by 180 ° with respect to the development layout, and the imposition position of the image recorded by the recording unit so that the relative imposition position does not change The image recording apparatus according to claim 1, wherein   The recording unit is configured to shift the imposition position of the image recorded by the recording unit in the arrangement direction of the imposition of the development with respect to the development arrangement, so that the relative imposition position does not change. The image recording apparatus according to claim 1, wherein the imposition position of the image to be recorded is changed.   The changing means rotates the imposition position of the image to be recorded by the recording means by 180 ° with respect to the development view arrangement, and the imposition position of the image to be recorded by the recording means with respect to the development view arrangement 2. The image recording according to claim 1, wherein the imposition position of the image to be recorded by the recording means is changed such that the relative imposition position does not change by shifting in the arrangement direction of the imposition of the developed view. apparatus.   The recording unit includes a plurality of recording units for recording an image, and the changing unit is configured to reduce the deviation of the accumulated recording amount among the plurality of recording units by changing the imposition position. The image recording apparatus according to any one of claims 1 to 4, wherein the imposition position is changed.   The recording unit includes a plurality of recording units for recording an image, and the changing unit is configured to reduce the deviation of the accumulated recording amount among the plurality of recording units by changing the imposition position. The image recording apparatus according to any one of claims 1 to 4, wherein whether or not to change the imposition position can be selected.   The image recording apparatus according to any one of claims 1 to 4, wherein the changing unit can select whether to change the imposition position.   An image recording method comprising: recording an image on the recording medium by changing an imposition position so that a relative imposition position does not change with respect to the recording medium of the development view arrangement.