JP6401665B2 - Imaging unit integrated ink jet recording apparatus - Google Patents

Description

  The present invention relates to an inkjet recording apparatus, and more particularly, to an imaging unit integrated inkjet recording apparatus provided with an imaging unit for inspecting printed characters and patterns.

  Japanese Unexamined Patent Application Publication No. 2005-22266 (Patent Document 1) is known as a background art relating to an ink jet recording apparatus. In this gazette, in the column of the summary issue, "the inspection item that is the most time-consuming work in the print inspection is set quickly, the work efficiency of the print inspection is improved, and the preparation period until the start of packaging. Provides a print inspection system that makes it possible to significantly reduce In addition, in the field of the technical field to which the invention belongs, “whether or not the printing is properly performed for the characters and symbols printed on the packaging material for wrapping the package of the product and the label attached to the product” It relates to a printing inspection system for inspecting the above. "

  In addition, in paragraph [0018], in the above-described print inspection system in which the printing device and the reading device are sequentially arranged in the paper-feed direction of the web-shaped packaging material or the label, the reading device is integrated with a line sensor and illumination. As the scanner head, the scanner head can be disposed on the downstream side of the printing apparatus in the paper feeding direction so that the line direction of the line sensor is perpendicular to the paper feeding direction. The scanner head is an easily available device, and the line sensor can sequentially read the print printed on the packaging material or label with the direction orthogonal to the paper feed as the main scan and the paper feed direction as the sub-scan direction. A line sensor is a sensor in which the distance from the detection surface to be scanned is constant and the number of pixels per unit dimension is fixed. The data read by the line sensor is homogeneous data that does not require image adjustment in the length direction, so that it is easy to edit the inspection image data. It is possible to handle the reading apparatus together with the printing apparatus by arranging it by attaching it to the side or the like, and it is possible to arrange both apparatuses in a space-saving and compact manner. " .

Further, in Japanese Patent Application Laid-Open No. 2008-89379 (Patent Document 2), in the summary solution section, “The present invention comprises a printing machine and a printing inspection machine for inspecting the printing result. Printing inspection. The machine determines whether printing such as the original date of manufacture of the printing machine is correctly performed by pattern matching between the read image and the inspection character pattern.In the present invention, in addition to the original printing inspection, Before the printing machine is operated, a defective character is intentionally generated and printed by the printing machine, and it is checked whether or not the degree of the defectiveness can be correctly recognized by pattern matching between the printed image and the inspection character pattern. From the date of manufacture, it has various aspects such as characters, characters missing, and missing character lines that are easily misidentified by the operator.

JP 2005-22266 A JP 2008-89379 A

  Ink jet printers are used in a production line, for example, by printing information such as the date of manufacture, location, and expiration date of a product on a product. In that case, the location on the production line depends on the target product and the layout of the production line.

  In order to be able to cope with the conditions of these various installation locations, the installation area of the ink jet printer including the inspection device (camera) should be as small as possible, and the inspection device should always be a product for the print head of the ink jet printer. The inspection device (camera) is required to be located as close as possible to the print head of the ink jet printer and at an arbitrary position with respect to the print head.

On the other hand, since the ink particles fly from the print head of the ink jet printer at high speed and hit the product flowing through the production line, which is the object to be printed, a part of the ink bounces off the surface of the object to be printed and scatters around. When an inspection device (camera) is installed near the print head, ink particles scattered from the surface of the object to be printed adhere to the lens of the inspection device (camera) and stain the surface of the lens, and the image to be picked up gradually. There is a risk of deterioration.
The print inspection system described in Patent Document 1 describes that since the scanner head can be mounted in a small space, it can be attached to the printing apparatus and integrated with the printing apparatus.
However, in Patent Document 1, a hot roll printer or a thermal printer is used as a recording apparatus, and no special consideration is given to the contamination of the scanner head due to printing.

  In addition, when the printing press and the scanner head are integrated, the relationship with the direction in which the product flows becomes inflexible, and there are many restrictions on installation in the production line.

  On the other hand, Patent Document 2 discloses an apparatus using an ink jet printer as a recording apparatus. However, when a camera for reading a character pattern printed by the ink jet printer is as close as possible to the ink jet printer, or when it is close It does not describe how to prevent the camera from being soiled due to ink scattering when printing occurs.

  SUMMARY An advantage of some aspects of the invention is that it provides an image pickup unit-integrated ink jet recording apparatus that can be inspected immediately after printing without being limited by the shape and direction of printed matter.

In order to solve the above problems, in the present invention, a print head that discharges finely divided ink, an illuminator that illuminates a pattern printed on a print object by the print head, and a pattern illuminated by the illuminator are imaged. In an inkjet recording apparatus including an imaging unit having a camera, the imaging unit illuminator, the camera, and the print head are integrated by fixing the illuminator of the imaging unit, the camera, and the print head to a common connection base. The illuminator and camera were arranged adjacent to the print head to form an image pickup unit-integrated ink jet recording apparatus.

  In order to solve the above problems, in the present invention, a print head that discharges finely divided ink, an illuminator that illuminates a pattern printed on a print object by the print head, and a pattern illuminated by the illuminator are imaged. In an inkjet recording apparatus including an imaging unit having a camera that performs illumination of the imaging unit by fixing the illuminator of the imaging unit and the camera and the print head to a common connection base whose mounting direction can be adjusted around the print head An image pickup unit-integrated ink jet recording apparatus in which a container, a camera, and a print head are integrated.

  According to the present invention, it is possible to provide an inspection machine-integrated ink jet recording apparatus that can be inspected immediately after printing, regardless of the shape and direction of the printed matter.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an external appearance of an imaging unit-integrated inkjet recording apparatus main body and a print head according to Embodiment 1 of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view illustrating the principle of an imaging unit-integrated inkjet recording apparatus according to a first embodiment of the invention. FIG. 2 is a perspective view illustrating a usage state of the imaging unit-integrated inkjet recording apparatus according to the first embodiment of the invention. It is a figure which shows the circulation system path | route structure of the imaging part integrated inkjet recording device which concerns on Example 1 of this invention. 1 is a front view of a print head and an image pickup unit to which a scattering prevention plate is attached in an image pickup unit-integrated ink jet recording apparatus according to Embodiment 1 of the present invention. FIG. 1 is a front view of a print head and an image pickup unit provided with a scattering prevention plate of an image pickup unit-integrated ink jet recording apparatus according to Embodiment 1 of the present invention. FIG. FIG. 2 is a front view of the print head of the imaging unit-integrated inkjet recording apparatus according to the first embodiment of the present invention and the imaging unit stored in a storage box. FIG. 3 is a front view of an image pickup unit including a camera and a print head that is rotatably mounted around an illuminator of the image pickup unit-integrated inkjet recording apparatus according to the first embodiment of the present invention. It is a front view of an image pick-up part provided with a plurality of illuminators of an image pick-up part integrated ink-jet recording device concerning Example 1 of the present invention, and a print head. It is sectional drawing which shows the structure of the illuminator of the imaging part integrated inkjet recording device which concerns on Example 2 of this invention.

  The present invention includes a print head that discharges finely divided ink, an illuminator that illuminates a pattern printed on an object to be printed by the print head, and an imaging unit that includes a camera that images the pattern illuminated by the illuminator. In the inkjet recording apparatus, the illuminator and camera of the image pickup unit are fixed to a common connection base, and the illuminator and camera of the image pickup unit are integrated with the print head. It is arranged adjacent to, and can be inspected immediately after printing, regardless of the shape and direction of the printed matter.

  Hereinafter, this embodiment will be described with reference to the illustrated example. The present invention is not limited to the illustrated example.

  FIG. 1 is a perspective view showing an ink jet recording apparatus 100. The ink jet recording apparatus 100 includes a main body 1 provided with an operation display unit 5, a print head 2, and a detection unit 3. The main body 1 and the print head 2 are connected by a conduit 4.

  Here, the operation principle of the inkjet recording apparatus 100 will be described with reference to FIG. FIG. 2 shows a main configuration inside the print head 2. The print head 2 includes a nozzle 8 having an electrostrictive element 9, a charging electrode 11 for charging ink particles ejected from the nozzle 8, a pair of upper and lower deflection electrodes for controlling the trajectory of the charged ink particles, and printing. A gutter 14 is provided for capturing and collecting ink particles that have not contributed.

  With such a configuration, the ink in the ink container 18 on the main body 1 side is sucked and pressurized by the pump 25, supplied to the print head, and discharged from the nozzle 8 as the ink column 7. The nozzle 8 is provided with an electrostrictive element 9, and the ink column 7 ejected from the nozzle 8 is made into particles by applying vibration to the ink at a predetermined frequency. The number of ink particles 10 thus generated is determined by the frequency of the excitation voltage applied to the electrostrictive element 9, and is the same as the frequency.

  The ink particles 10 ejected from the nozzles 8 are given a charge by applying a voltage having a magnitude corresponding to the print information at the charging electrode 11. While the ink particles 10 charged by the charging electrode 11 fly in the electric field generated between the deflection electrodes 12, the ink particles 10 are deflected by receiving a force proportional to the amount of charge and fly toward the print target 13. Land. At that time, the landing position of the ink particle 10 in the deflection direction changes according to the charge amount, and the production line moves the print target 13 in the direction orthogonal to the deflection direction, so that the ink particle 10 also moves in the direction orthogonal to the deflection direction. Particles can be landed, and a character is composed of a plurality of landed particles for printing. Ink particles 10 that have not been used for printing fly linearly between the deflection electrodes 12, are collected by the gutter 14, and then collected in the main ink container 18 via the path.

  Next, an example of an actual use state of the inkjet recording apparatus 100 is shown in FIG. For example, the inkjet recording apparatus 100 is installed in a production line in a factory where food, beverages, and the like are produced, the main body 1 is installed at a position where the user can operate, and the print head 2 including the detection unit 3 is a belt conveyor. It is installed at a position where it can approach the printing object 13 fed on the production line such as 15.

  In order to print on the production line such as the belt conveyor 15 with the same width regardless of the feeding speed, the encoder 16 that outputs a signal corresponding to the feeding speed to the inkjet recording apparatus 100 and the printing object 13 are detected. A print sensor 17 that outputs a signal for instructing printing to the inkjet recording apparatus 100 is installed, and each is connected to a control unit in the main body 1.

  In accordance with signals from the encoder 16 and the print sensor 17, the control unit controls the charge amount and charging timing of the ink particles 10 ejected from the nozzle 8, and charges while the print target 13 passes near the print head 2. The deflected ink particles 10 are attached to the print object 13 for printing.

  FIG. 4 is an explanatory diagram showing an overall path configuration of the inkjet recording apparatus 100. The main body 1 includes a mechanism unit 150 and a control unit 160.

  The mechanism unit 150 includes a main ink container 18 that holds circulating ink. The main ink container 18 includes a reference liquid that is in an appropriate amount to hold the liquid in the main ink container 18 therein. A liquid level sensor 38 for detecting whether or not the level has been reached is provided. The main ink container 18 is connected to a viscosity measuring device 21 which is a drop type viscometer for measuring the viscosity of the ink via a path 101 for circulating the ink.

  The viscosity measuring instrument 21 is connected to an electromagnetic valve 22 that opens and closes a path via a path 102, and the electromagnetic valve 22 is connected to a pump 25 that is used for suction and pressure feeding of ink and solvent via a path 103. Yes. The pump 25 is connected via a path 104 to a filter 28 that removes foreign matters mixed in the ink.

  The filter 28 is connected to a pressure reducing valve 30 that adjusts to an appropriate pressure for printing the ink pumped from the pump 25 via the path 105, and the pressure reducing valve 30 controls the pressure of the ink via the path 106. It is connected to a pressure sensor 31 for detection.

  The pressure sensor 31 is connected to a nozzle 8 provided with an ejection port for ejecting ink provided in the print head 2 through a path 107 passing through the conduit 4.

  In the ink discharge direction of the nozzle 8, a charging electrode 11 that charges the particle with a charge amount corresponding to character information printed on the ink particle 10 discharged from the nozzle 8 is disposed. In the flying direction of the ink particles 10 charged by the charging electrode 11, a deflection electrode 12 that generates an electric field that deflects the charged ink particles 10 is disposed.

  On the ink flying direction side of the deflection electrode 12, a gutter 14 for capturing the ink particles 10 that fly linearly without being charged and deflected because they are not used for printing is disposed.

  The gutter 14 is connected to a filter 29 that removes foreign matters mixed in the ink disposed in the main body 1 via a path 108 passing through the conduit 4, and the filter 29 is connected via the path 109. A recovery pump 26 that sucks the ink particles 10 captured by the gutter 14 is connected. The recovery pump 26 recovers the ink particles 10 sucked through the path 110 into the main ink container 18.

  The main body 1 is provided with an exhaust port 32, and the exhaust port 32 is connected to the main ink container 18 via a path 150. Volatile solvent components in the ink are connected to the main body 1 via the path 150. Exhausted outside.

  Further, the main body 1 is provided with a solvent container 20 that contains a solvent for eliminating contamination caused by the ink generated in the nozzle 8 and adjusting the concentration of the ink. It is connected to a pump 27 that performs suction and pressure feeding. The pump 27 is connected to the electromagnetic valve 24 that opens and closes the path via the path 112, and the electromagnetic valve 24 is connected to the main ink container 18 via the path 113.

  Further, the main body 1 is provided with an auxiliary ink container 19 that holds replenishing ink. The auxiliary ink container 19 is connected to an electromagnetic valve 23 that opens and closes a path via a path 120. The electromagnetic valve 23 is connected to the path 103 via the path 121.

The control unit 160 includes a control unit 170 and an inspection unit 180.
The control unit 170 mainly controls the operation of each device such as the pumps 25 to 27, the recovery pump 26, the electromagnetic valves 21 to 24, and the pressure reducing valve 30 of the mechanism unit 150, and the charging electrode 11 and the deflection electrode 12 of the print head. To do. The control unit 170 includes a pattern generator 171 that controls the voltage pattern applied to the deflection electrode 12 in order to control the voltage applied to the deflection electrode 12 and form a character pattern to be printed on the printing object 13. .

  The inspection unit 180 includes a reference pattern generation unit 181, a pattern extraction unit 182, a pattern collation 183, a camera light amount check unit 184, and an output unit 185.

  The reference pattern generation unit 181 creates pattern shape information to be printed on the print target 13 based on the voltage pattern signal generated by the pattern generator 171 of the control unit 170.

  The pattern extraction unit 182 receives signals from the detector 3, the encoder 16, and the print sensor 17, and extracts a print pattern from the pattern image printed on the print target 13 imaged by the detection unit 3.

  The pattern matching unit 183 compares the pattern shape information printed on the print target 13 generated by the reference pattern generation unit 181 with the pattern shape information printed on the print target 13 extracted by the pattern extraction unit 182, The quality of the pattern shape to be printed on the printing object 13 is determined from the degree of non-uniformity of the patterns, and the result is displayed on the screen of the scanning display unit 3 from the output unit 185 and output to the outside.

The configuration and structure of an inspection machine-integrated ink jet recording apparatus according to this embodiment will be described with reference to FIGS.
FIG. 5A is a diagram illustrating a state where the detector 3 is installed adjacent to the print head 2. The detector 3 includes a camera 501 equipped with an illuminator 510, support members 511 and 512, and a lens 502, and has a structure in which they are connected to the print head 2 by a connection base 520. With the connection base 520, the illuminator 510 and the camera 501 can be integrated by being close to each other, and the illuminator 510 and the camera 501 can be made compact and space-saving compared with the case where the illuminator 510 and the camera 501 are separately installed. Further, the connection base 520 has a configuration that can be attached to the print head 2 in an arbitrary direction. The illuminator 510 includes a plurality of light emitting diodes 5101, and is supported by a support member 512 that is rotatably attached to a support member 511 fixed to the connection base 520 around a pin 513.

  Furthermore, by integrating the illuminator 510 and the camera 501 close to the print head 2, it is possible to capture an image of the print pattern immediately after printing on the print object 13 with the print head 2. The pattern image immediately after printing captured by the camera 501 is input to the pattern extraction unit 182 of the inspection unit 180 to extract pattern information, and the print target 13 generated by the reference pattern generation unit 181 input to the pattern matching unit 183 is obtained. By comparing the pattern shape information to be printed with the pattern matching unit 183, it is possible to determine the quality of the print pattern immediately after printing. As a result of determining whether or not the print pattern is good by the pattern matching unit 183, when the print failure is detected, the control unit 170 stops printing by the print head 2, thereby preventing a large number of print failures.

  The connection base 520 is preferably attached to the base (side connected to the same building 4) rather than the tip of the print head 2. This is because the print head cover 201 that covers the print head 2 must be removed when cleaning the inside of the print head 2 that has been soiled with ink or when cleaning the inside of the print head 2 due to regular maintenance. If the connection base 520 is attached to the distal end portion, it must be removed every time the cleaning operation is performed, resulting in trouble for the operator. Further, since a solvent is used when cleaning ink stains, a solvent-resistant material must be selected as the material of the connection base 520.

  The installation positions of the illuminator 510 and the camera 501 are arranged so as to be downstream of the print head 2 in order to perform inspection immediately after printing on the print target 13.

  In the configuration shown in FIG. 5A, ink that rebounds from the print object 13 out of the ink particles that have jumped from the print head 2 to the print object 13 is prevented from being scattered on the camera 501 side and adhering to the lens 502. Therefore, a scattering prevention plate 530 is provided on the side surface of the print head cover 201.

  The tip portion 531 of the anti-scattering plate 530 is set at the same level as or slightly higher than the lower surface 202 of the print head cover 201 with respect to the upper surface of the belt conveyor 15 in FIG. To do.

  When the direction of the connection base 520 is changed in accordance with the moving direction of the print target 13 on the belt conveyor 15, the attachment position of the scattering prevention plate 530 on the side surface of the print head cover 201 is adjusted in accordance with the position of the camera 501. In other words, the ink bounced off the printing object 13 is prevented from splashing to the camera 501 side.

  By providing the scattering prevention plate 530 in this way, it is possible to prevent ink from adhering to the lens 502 of the camera 501, and the camera 501 is made to be printed by the printing object 13 as compared with the case where the scattering prevention plate 530 is not provided. You can get closer. As a result, the pattern printed on the print target 13 can be captured closer, and a large image of the printed pattern can be captured using a relatively inexpensive lens.

In addition, by attaching the scattering prevention plate 530 to the print head cover 201 so as to be detachable, after the printing head 2 repeats printing on the printing object 13 for a predetermined time, the scattering prevention plate 530 is removed from the print head cover 201. By washing and attaching the print head cover 201 again, it is possible to prevent the lens 502 of the camera 501 from being soiled with printing ink.

  The scattering prevention plate 53 in FIG. 5A is an example of a flat plate. However, the front end portion of the scattering prevention plate 53 (the side close to the printing object) is formed into an L shape so that the scattering prevention plate 53 and the printing target are formed. The configuration may be such that the amount of ink that passes through the gap between the objects and scatters in the direction of the camera 501 is further reduced.

  FIG. 5B shows an example in which the scattering prevention plate 531 is installed between the lens 502 and the illuminator 510 of the camera 501 and the belt conveyor 15 of FIG. The scattering prevention plate 531 is supported by the connection base 520 by means not shown.

  By installing the anti-scattering plate 531 in this way, the possibility that the lens 502 and the illuminator 510 of the camera 501 are soiled with printing ink can be reduced.

  5A or 5B makes it possible to install the print head 2 equipped with the camera 501 even in a narrow space as compared with the prior art. The restriction condition can be relaxed and the degree of freedom of the installation location can be increased.

  FIG. 6 is a diagram illustrating a state in which the print inspection unit 600 is configured by housing the entirety in the storage box 610 with the camera 501 and the illuminator 510 attached to the connection base 520. The connection base 520 has a structure that can be attached to the print head 2 in an arbitrary direction.

  The print head 2 of the inkjet recording apparatus 100 is not limited in the installation direction of the print head 2 with respect to the print object 13, and how the print head 2 is installed with respect to the print object 13 in any orientation. Printing is possible even if installed in any orientation. Therefore, regardless of the orientation of the print head 2, the inspection unit 600 is connected to the connection base 520 so that the illuminator 510 and the camera 501 are arranged on the downstream side of the print head 2 with respect to the flow. Adjust the position. By adjusting the connection base 520, the inspection unit 600 can be configured to be able to rotate 360 ° about the print head 2, and is not limited to the orientation of the print head 2, and prints on the print target 13 immediately after printing. A configuration is adopted in which the pattern thus formed is imaged and inspected with a kameka 501.

The lower surface 611 of the storage box 610 is made of a transparent material (for example, a glass plate or a transparent acrylic plate) and plays the same role as the anti-scattering plate 531 described with reference to FIG. And can be prevented from being stained with printing ink.
FIG. 7 is a diagram for explaining the arrangement of the illuminator 510 and the camera 501. The arrangement is such that the arrangement of the illuminator 510 and the camera 501 can be changed with respect to the print target 13. That is, the arm 701 to which the camera 501 is attached is fixed to the shaft 700 to which the illuminator 510 is attached, and the shaft 700 is supported by the connection base 520, and the shaft 700 is in any direction (rotation direction) with respect to the connection base 520. It was made the structure which can be attached to. With such a configuration, the illuminator 510 and the camera 501 are arranged along the production line such as the belt conveyor 15 through which the print target 13 flows, or the production line such as the belt conveyor 15 is arranged. It is also possible to arrange the illuminator 510 and the camera 501 in a direction perpendicular to each other.

Even in the configuration shown in FIG. 7, the lens 502 of the camera 501 and the illuminator 510 are soiled with printing ink by providing the anti-scattering plate 530 or 531 as described in FIG. 5A or 5B. Can be prevented.
FIG. 8 is a diagram for explaining the arrangement of the illuminators 810 around the camera 501. In this configuration, two illuminators 810 are used. As described with reference to FIG. 5A, each illuminator 810 is supported by an indication member 812 that is rotatably attached around a pin 813 to a support member 811 fixed to the connection base 820. By increasing the quantity of the illuminators 810, the illuminators 810 can be reduced in size. In addition, the lighting method can be adjusted with respect to the print target 13.

  From the above, according to the configuration according to the first embodiment, it is possible to provide an inspection machine-integrated inkjet recording apparatus that can be inspected immediately after printing without being limited by the shape of the print target and the direction of conveyance on the belt conveyor. Can do.

  In this embodiment, in addition to the structure of the first embodiment, a dirt prevention structure is incorporated in the camera and the illumination during the print inspection. The configuration of the ink jet recording apparatus main body is the same as that of the ink jet recording apparatus 100 described with reference to FIGS.

  FIG. 9 is a diagram for explaining a structure of illumination that can cope with splashing due to ink scattering. Ink jet recording devices fly ink particles onto a print object in a non-contact manner, so that ink may splash after contact. At this time, if the camera 501 and the illumination 500 are brought close to the object to be printed, the surface becomes dirty due to ink splashing.

  In the configuration shown in FIG. 5A of the first embodiment, the camera 501 is attached in the vicinity of the scattering prevention plate 530 attached to the side surface of the print head cover 201, so that it is prevented from being contaminated with ink scattered from the print target 13. be able to. On the other hand, since the illuminator 510 is installed at a distance from the scattering prevention plate 530, the ink that has not been captured by the scattering prevention plate 530 among the ink scattered from the print target 13 may be contaminated. .

  Therefore, in the present embodiment, the illuminator 510 is replaced with the illuminator 910 illustrated in FIG. 9 in the configuration illustrated in FIG. 5A of the first embodiment, and the illuminator 910 is disposed inside the tube 900 to exit the illumination. The configuration is such that light is applied to the print target 13 via the reflecting mirror 901.

  From the above, according to the configuration according to the second embodiment, it is possible to provide an inspection machine-integrated ink jet recording apparatus that can be inspected immediately after printing without being limited by the shape and direction of the printed matter.

  DESCRIPTION OF SYMBOLS 1 ... Main body 2 ... Print head 3 ... Detection part 4 ... Conduit 5 ... Operation display part 8 ... Nozzle 100 ... Inkjet recording device 150 ... Mechanism part 160 ... Control unit 170 ... Control unit 180 ... Inspection unit 201 ... Print head cover 501 ... Camera 502 ... Lens 510,810,910 ... Illuminator 520,820 ... Connection base 530 , 531 ... scattering prevention plate 610 ... storage box 900 ... cylinder.

Claims (9)

A print head for discharging finely divided ink;
An inkjet recording apparatus comprising: an illuminator that illuminates a pattern printed on an object to be printed by the print head; and an imaging unit that includes a camera that images the pattern illuminated by the illuminator.
The illuminator of the imaging unit, the camera, and the print head are fixed to a common connection base, and the illuminator of the imaging unit, the camera, and the print head are integrated, and the illuminator of the imaging unit, Positioning the camera adjacent to the print head ;
An image pickup unit-integrated ink jet recording apparatus, wherein an attachment direction of the connection base can be adjusted around the print head . The imaging unit-integrated inkjet recording apparatus according to claim 1 , further comprising a scattering prevention unit that prevents ink from scattering to the imaging unit when printing is performed on an object to be printed by the print head. An imaging unit-integrated ink jet recording apparatus. The imaging unit-integrated ink jet recording apparatus according to claim 2 , wherein the scattering prevention unit is attached to the print head side. The imaging unit-integrated ink jet recording apparatus according to claim 2 , wherein the scattering prevention unit is attached in front of the camera. 2. The imaging unit-integrated inkjet recording apparatus according to claim 1 , wherein ink scattered from the printing object adheres to the illuminator of the imaging unit when the printing object prints on the printing object. An image pickup unit-integrated ink jet recording apparatus, further comprising a scattering prevention unit for preventing the image pickup unit. A print head for discharging finely divided ink;
An inkjet recording apparatus comprising: an illuminator that illuminates a pattern printed on an object to be printed by the print head; and an imaging unit that includes a camera that images the pattern illuminated by the illuminator.
The illuminator, the camera, and the print head of the imaging unit are fixed by fixing the illuminator, the camera, and the print head of the imaging unit to a common connection base whose mounting direction is adjustable around the print head. An image pickup unit-integrated ink jet recording apparatus that is integrated with the image pickup unit. The imaging unit-integrated inkjet recording apparatus according to claim 6 , wherein the imaging unit is disposed adjacent to the print head. The imaging unit-integrated ink jet recording apparatus according to claim 7 , further comprising a scattering prevention unit that prevents scattering of ink to the imaging unit when printing is performed on an object to be printed by the print head. An image pickup unit-integrated ink jet recording apparatus. The imaging unit-integrated ink jet recording apparatus according to claim 6 , wherein ink scattered from the printing object adheres to the illuminator of the imaging unit when the printing object prints on the printing object. An image pickup unit-integrated ink jet recording apparatus, further comprising a scattering prevention unit for preventing the image pickup unit.

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