JP2013043386A - Ink jet recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ink jet recorder capable of preventing an operator from touching a recording medium unintentionally during printing.SOLUTION: A printer 1 injects ink to a T-shirt which is cloth, and prints an image thereon. In the printer 1, in order to apply various kinds of inks to the T-shirt in a stacked manner, a platen 20 supporting the T-shirt is repeatedly protruded and retracted from/into the housing 5. In the present embodiment, when an image is printed on one T-shirt, the number (N) of times of conveying the platen 20 in the direction of protruding the platen from the opening 7 of the housing 5 can be displayed on a display 9. Accordingly, even if the platen 20 protrudes from the opening 7 of the housing 5, an operator is prevented from misunderstanding that printing has been finished, and thus, the operator is prevented from touching the T-shirt on the platen 20.

Description

  The present invention relates to an ink jet recording apparatus.

  2. Description of the Related Art Conventionally, an ink jet recording apparatus that can form an image by ejecting ink onto a recording medium such as a cloth is known (see, for example, Patent Document 1). The ink jet recording apparatus includes a carriage, an ink jet head, a platen, and a main body cover. An ink jet head is mounted on the carriage. The carriage moves the inkjet head in the main scanning direction within the main body cover. The ink jet head ejects ink downward. The platen is provided below the carriage movement range. For example, a T-shirt or the like is attached to the upper surface of the platen. The platen moves in the sub-scanning direction. The sub-scanning direction is a direction orthogonal to the main scanning direction. For example, when an image is printed on a dark T-shirt such as a black background color, white ink is first ejected onto the print area, and then printing is performed by ejecting CMYK color ink onto the white area. is there. At this time, in order to increase the white density, printing with white ink may be repeated a plurality of times. In addition, in order to print an image more clearly regardless of the background color of the T-shirt, printing with white ink or ink of each color may be repeated a plurality of times in the same print area. Therefore, when printing an image on a single T-shirt, the platen is repeatedly conveyed in the sub-scanning direction. When printing is completed, the platen protrudes forward from the front wall of the main body cover and is transported to a position outside. The operator removes the printed T-shirt from the platen and replaces it with a new one.

Japanese Patent No. 4670398

  However, in the ink jet recording apparatus described in Patent Document 1, while the platen is repeatedly transported in the sub-scanning direction, the platen may be transported to an outside position protruding from the front wall of the main body cover. Therefore, when the platen is transported outside the main body cover, an operator who sees the platen mistakes it as having finished printing, and may touch the T-shirt in the middle of printing carelessly. In this case, the position of the T-shirt on the platen may be shifted, which may cause printing failure.

  An object of the present invention is to provide an ink jet recording apparatus capable of preventing an operator from inadvertently touching a recording medium during printing.

  An ink jet recording apparatus according to a first aspect of the present invention is provided in a casing, in the casing, a recording head that performs recording by ejecting ink onto a recording medium, and removably provided in the casing. Controlling the recording head and the feeding mechanism based on print data, a platen that supports the recording medium so as to be movable relative to the recording head, a feeding mechanism that transports the platen inside and outside the housing, and An inkjet recording apparatus comprising: a control unit configured to acquire the number of projections by which the feeding mechanism conveys the platen in a direction projecting outward from the housing; and And a notifying means for notifying the number of protrusions acquired by the protrusion number acquiring means.

  In the ink jet recording apparatus according to the first aspect, the number of protrusions acquisition unit acquires the number of protrusions. The number of protrusions is the number of times that the feeding mechanism conveys the platen in the direction protruding outward from the housing. The notification means notifies the number of protrusions acquired by the protrusion number acquisition means. The operator knows the number of times the platen protrudes outward from the housing for printing the print data, so it is easy to see if the platen protrudes outward from the housing or whether printing is still in progress Can be distinguished. Therefore, this aspect can prevent an operator from inadvertently touching the recording medium during printing.

  In the first aspect, the printing apparatus may further include a print data acquisition unit that acquires the print data, and the protrusion number acquisition unit may acquire the protrusion number based on the print data acquired by the print data acquisition unit. . Therefore, this aspect can acquire the number of protrusions based on the print data.

  Further, in the first aspect, a storage unit that stores the print data may be provided, and the protrusion number acquisition unit may acquire the protrusion number based on the print data stored in the storage unit. Therefore, this aspect can acquire the number of protrusions.

  In the first aspect, a display unit may be provided, and the notification unit may display and notify the projection number acquired by the projection number acquisition unit on the display unit. Since the number of protrusions is displayed on the display unit of the ink jet recording apparatus, for example, the operator can easily confirm the number of protrusions than when the number of protrusions is displayed on the display unit of the external computer. Therefore, it is possible to reliably prevent the operator from inadvertently touching the recording medium during printing.

  In the first aspect, the recording head ejects preprocessing ink onto the recording medium and ejects postprocessing ink onto the recording medium on which the preprocessing has been performed. And a post-processing head. The preprocessing head performs preprocessing by ejecting preprocessing ink onto the recording medium. The post-processing head performs post-processing by ejecting post-processing ink onto the pre-processed recording medium. In this configuration, when printing one recording medium, the platen prints while going in and out of the housing a plurality of times, but the number of protrusions is notified, so that the operator inadvertently records during the printing. Touching the medium can be prevented.

  An ink jet recording apparatus according to a second aspect of the present invention includes a recording head that performs recording by ejecting ink onto a recording medium, a platen that supports the recording medium so as to be movable relative to the recording head, and An inkjet recording apparatus comprising: a feed mechanism that transports a platen to one side and the other side in the scanning direction; and a control unit that controls the print head and the feed mechanism based on print data, wherein the feed mechanism is When printing the print data, the number of protrusions acquisition means for acquiring the number of protrusions when the platen is transferred from the reference position to the one side and then transferred to the other side, and the number of protrusions acquisition means And an informing means for informing the number of protrusions acquired by the method.

  In the ink jet recording apparatus according to the second aspect, the number of protrusions acquisition unit acquires the number of protrusions. The number of protrusions is the number of times when the feeding mechanism conveys the platen from the reference position to one side and then conveys it to the other side. The notification means notifies the number of protrusions acquired by the protrusion number acquisition means. Since the operator knows the number of protrusions for printing the print data, even if the platen protrudes from the reference position, the operator can easily distinguish whether printing is still in progress or printing is finished. Therefore, this aspect can prevent an operator from inadvertently touching the recording medium during printing.

1 is a perspective view of a printer 1. FIG. 2 is a plan view of the printer 1. FIG. FIG. 2 is a plan view of the printer 1 (a platen 20 is a media attachment / detachment position). FIG. 2 is a block diagram illustrating an electrical configuration of the printer 1. 3 is a conceptual diagram illustrating a configuration of print data 50. FIG. It is a flowchart of a main process. It is a flowchart of a printing process. It is a figure which shows the screen displayed on the display 9 before printing. It is a figure which shows the screen displayed on the display 9 during printing. It is a figure which shows the modification of the screen displayed on the display 9 during printing.

  Hereinafter, an ink jet recording apparatus 1 (hereinafter simply referred to as a printer 1) according to an embodiment of the present invention will be described with reference to the drawings. In the following description, the vertical direction, the diagonally downward right direction, the diagonally upward left direction, the diagonally downward left direction, and the diagonally upward right direction of FIG. 1 are respectively the vertical direction, forward direction, backward direction, leftward direction, and rightward direction of the printer 1. Direction. The left-right direction of the printer 1 is the X-axis direction (main scanning direction), and the front-rear direction is the Y-axis direction (sub-scanning direction). The downward direction, upward direction, right direction, and left direction in FIGS. 2 and 3 are the front direction, rear direction, right direction, and left direction of the printer 1, respectively.

  First, a schematic configuration of the printer 1 will be described. As shown in FIG. 1, the printer 1 can print on a T-shirt that is a fabric as a recording medium. The printer 1 has a well-known structure. The printer 1 includes a base 2, a printing mechanism 3 (see FIGS. 2 and 3), and a housing 5. The base 2 is provided in the lower part of the printer 1. The printing mechanism 3 is provided on the upper part of the base 2. The printing mechanism 3 prints an image on a T-shirt (not shown) on a platen 20 described later using various inks. The housing 5 is a substantially rectangular parallelepiped. The casing 5 is provided on the upper part of the base 2 and surrounds the printing mechanism 3. The housing 5 includes a front frame member 5A, a rear frame member 5B, a right frame member 5C, and a left frame member 5D. The front frame member 5 </ b> A is located on the front side of the housing 5. The rear frame member 5 </ b> B is located on the rear side of the housing 5. The right frame member 5 </ b> C is located on the right side of the housing 5. The left frame member 5D is located on the left side of the housing 5. A front cover 6 is provided on the upper front side of the housing 5 so as to be openable and closable. An opening 7 is provided in the center of the front surface of the housing 5. The opening 7 has a slightly horizontally long rectangular shape. The platen 20 is conveyed from the opening 7 to the front of the housing 5 in the Y-axis direction.

  An operation panel 8 is provided in the lower right corner of the front surface of the housing 5. The operation panel 8 has a substantially rectangular shape in plan view. The operation panel 8 is a device for an operator to operate the printer 1. A display 9 is provided on the rear side of the upper surface of the operation panel 8, and a print button 10 is provided on the front side of the upper surface. The display 9 displays various screens. The print button 10 is a button for inputting the printing start of the printer 1. A cartridge mounting portion 12 is provided in the lower left corner of the front surface of the housing 5. The cartridge mounting portion 12 has a substantially rectangular parallelepiped shape. Eight cartridges 13 are mounted on the front surface of the cartridge mounting portion 12. The cartridge 13 holds various inks. Various inks will be described later.

  Next, the configuration of the printing mechanism 3 will be described. As shown in FIG. 2, the printing mechanism 3 includes a carriage 15, eight recording heads 16, an X-axis guide rail 18, an X-axis motor 41 (see FIG. 4), a Y-axis guide rail 19, and a Y-axis feed screw (not shown). ), A platen 20, a tray 21 (see FIG. 1), and a Y-axis motor 42 (see FIG. 4). The carriage 15 carries eight recording heads 16 and reciprocates them in the X-axis direction (main scanning direction). The recording head 16 discharges ink onto the printing surface of the T-shirt on the platen 20. The X-axis guide rail 18 extends in the X-axis direction. The X-axis guide rail 18 guides the carriage 15 in the X-axis direction. The X-axis motor 41 is a drive source that drives the carriage 15 along the X-axis guide rail 18.

  The platen 20 supports a T-shirt as a recording medium on the upper surface. The T-shirt is attached by the operator. As shown in FIG. 1, the tray 21 is disposed substantially in parallel below the platen 20. The tray 21 is a plate-like body that is larger than the platen 20. The tray 21 prevents, for example, the sleeve of the T-shirt on the platen 20 from falling downward. The Y-axis feed screw and the Y-axis guide rail 19 are each extended in the Y-axis direction. The Y-axis feed screw is connected to the output shaft of the Y-axis motor 42 and engages with a bearing (not shown) on the lower surface of the platen 20. The Y-axis guide rail 19 guides the platen 20 in the Y-axis direction (sub-scanning direction). The Y-axis motor 42 is a drive source that drives the platen 20 along the Y-axis guide rail 19.

  Next, the relationship between the cartridge 13 and the recording head 16 will be described. The eight cartridges 13 shown in FIGS. 1 and 2 have four cartridges that hold white (W) ink, one cartridge that holds cyan (C) ink, and one that holds magenta (M) ink. One for holding yellow (Y) ink and one for holding black (K) ink. These cartridges 13 are connected to eight recording heads 16 mounted on the carriage 15 via ink supply tubes (not shown) in a state of being mounted on the cartridge mounting portion 12. These recording heads 16 discharge various inks held in the respective cartridges 13 onto the printing surface of the T-shirt.

  The printer 1 having the above configuration can print an image on a T-shirt that is a fabric. For example, when printing an image on a dark T-shirt with a ground color of black or the like, first, white ink is ejected onto the printing surface of the T-shirt to form a background (background), and then the color ink is superimposed and ejected thereon. Form an image. As a result, the color of the image on the T-shirt becomes darker and brighter. The color ink is, for example, CMYK various inks other than the white ink. In this embodiment, the former process for ejecting white ink is a pre-process, and the latter process for ejecting color ink is a post-process. Therefore, the recording head 16 is divided into four pre-processing recording heads and four post-processing recording heads. The preprocessing recording heads are arranged on the rear side of the carriage 15 in parallel with the X-axis direction. The post-processing recording heads are arranged in parallel to the X-axis direction on the front side of the carriage 15. Thereby, in pre-processing and post-processing, ink can be ejected for each line parallel to the X-axis direction with respect to the T-shirt on the platen 20.

  As described above, the printer 1 prints an image by repeatedly applying various inks to one T-shirt. Further, the color ink may be repeatedly applied depending on the color of the image to be printed. In such a case, as shown in FIG. 2, the platen 20 repeatedly moves in and out of the housing 5 during the printing operation. When the printing operation of the printer 1 is completed, the platen 20 is transported to the media attachment / detachment position shown in FIG. The media attachment / detachment position is, for example, the foremost side in the Y-axis direction where the platen 20 can be conveyed, and is a position where the platen 20 is completely exposed to the outside of the housing 5. Therefore, the operator can easily attach or remove the T-shirt to or from the upper surface of the platen 20 at the media attaching / detaching position.

  Next, the electrical configuration of the printer 1 will be described. As shown in FIG. 4, the printer 1 includes a CPU 30. A ROM 31, a RAM 32, a head drive unit 33, a flash memory 45, a motor drive unit 34, an operation processing unit 35, a liquid crystal drive unit 36, and a USB interface 37 are connected to the CPU 30. The ROM 31 stores various control programs for controlling the operation of the printer 1, initial values, and the like. The RAM 32 temporarily stores various data such as print data 50 (see FIG. 5) received from a personal computer (hereinafter referred to as “PC”) 39. The flash memory 45 stores various data such as image data to be printed. Eight recording heads 16 are connected to the head driving unit 33, and ink ejection is controlled by driving a plurality of piezoelectric elements. The motor drive unit 34 drives the X-axis motor 41 and the Y-axis motor 42. The operation processing unit 35 processes an operation input from the operation panel 8. The USB interface 37 connects the printer 1 to an external device such as the PC 39. The PC 39 transmits the print data 50 to the printer 1. The print data 50 is data necessary for printing an image on a T-shirt or the like. The CPU 30 prints an image on a T-shirt or the like based on the print data 50 received from the PC 39.

  Next, the structure of the print data 50 will be described. As shown in FIG. 5, the print data 50 includes a header part 51, an image data part 52, and a footer part 53. The header portion 51 incorporates various types of information such as the number of protrusions (N), the print resolution, and the print job name. The number of protrusions (N) refers to the number of times the platen 20 is conveyed in a direction protruding forward from the opening 7 of the housing 5 when printing an image on a single T-shirt. Note that when printing an image on a T-shirt, the movement of scanning the platen 20 from the print start position in the Y-axis rearward to the print end position in the front is called a movement operation, and is necessary for printing one T-shirt. The number of movement operations is called the number of movement operations. In the present embodiment, since the platen 20 is transported in the direction protruding from the opening 7 of the housing 5 for each moving operation, the number of moving operations matches the number of protrusions (N). It should be noted that the print start position and the print end position can be appropriately changed for each moving operation according to the image to be printed.

  The print resolution is the resolution of printing by the recording head 16. The print job name is a job name assigned to each print data. For example, the PC 39 manages print data by print job name. In the image data section 52, image data of the 1 to N movement operations are incorporated in order. In the footer unit 53, an error detection code or the like is incorporated. For example, a CRC or a checksum can be used as the error detection code.

  Next, print control processing by the CPU 30 will be described with reference to the flowcharts of FIGS. In this process, when the print data 50 transmitted from the PC 39 is received, the control program stored in the ROM 31 is read and executed.

  First, the CPU 30 temporarily stores the print data 50 received from the PC 39 in the RAM 32 (S10). The CPU 30 conveys the platen 20 to the medium removal position (see FIG. 3) (S11). The operator installs a new T-shirt on the platen 20. The CPU 30 resets the end protrusion number counter (S12). The end protrusion number counter counts the number of end protrusions (M). The number of end protrusions (M) is the number of times that the platen 20 is protruded from the opening 7 of the housing 5 after printing for the print data 50 is started. The value of the end protrusion number counter is stored in the RAM 32.

  Next, the CPU 30 reads the print data 50 stored in the RAM 32 (S13). The CPU 30 acquires the number of protrusions (N) from the read print data 50 (S14). The CPU 30 displays the acquired number of protrusions (N) on the display 9 (S15). For example, as shown in FIG. 8, information about the current status of the printer 1 is displayed on the display 9. On the upper side of the display 9, information on the current printing is displayed. The current ink holding amount of each cartridge 13 is displayed on the lower side of the display 9.

  Examples of information relating to printing this time include various information such as a print job name, Size, MOVE, Count, and printing status. “Size” indicates the size of the platen 20 recommended by the printer 1, “MOVE” indicates the number of protrusions (N), “Count” indicates the number of printed T-shirts, and the printing status indicates the current status of the printer 1. In the example shown in FIG. 8, “Uniform Number 12” is displayed in the print job name field, “14 × 16” is displayed in the Size field, “4” is displayed in the MOVE field, “002” is displayed in the Count field, and the print status. In the column, “Print Ready” is displayed.

  By checking these information displayed on the display 9, the worker can confirm that the current printing content is a No. 12 uniform image managed by the PC 39, and the recommended platen 20 size is 14 cm × 16 cm. Yes, the number of protrusions (N) is 4, the second print has been completed so far (the next is the third print), and the print preparation is complete I understand. In particular, the operator knows that the number of protrusions (N) is four times, so that in this T-shirt printing, the platen 20 protrudes from the opening 7 of the housing 5 and is conveyed four times in advance. I can know. Further, it can be seen that the number of protrusions (N) is 4 before printing, which is a measure of how long it takes to print.

  Next, the CPU 30 determines whether or not the operator has pressed the print button 10 (S16). The CPU 30 returns to S16 and enters a standby state until the print button 10 is pressed (S16: NO). The operator confirms the screen of the display 9 and presses the print button 10 on the operation panel 8. When the CPU 30 determines that the print button 10 has been pressed (S16: YES), as shown in FIG. 9, a message “Printing...” Is displayed in the print status column of the display 9. The operator can recognize that the printer 1 has started the printing operation.

  Next, the CPU 30 further displays the number of end protrusions (M) next to the printing status column (S17). In the example shown in FIG. 9, the end protrusion number (M) with respect to the protrusion number (N) is displayed in a fractional manner. The denominator is the number of overhangs (N), and the numerator is the number of overhangs (M). The number of end protrusions (M) is stored in the RAM 32. Since the number of end protrusions (M) at the start of printing has been reset, [0/4] is displayed.

  Next, the CPU 30 moves the platen 20 to the printing start position for each moving operation (S17). The CPU 30 conveys the platen 20 to the print start position of the image data for the first movement operation included in the print data 50. The CPU 30 starts the printing process (S18).

  Next, the printing process will be described with reference to the flowchart of FIG. First, the CPU 30 scans the recording head 16 in the X-axis direction and prints one line (S31). The CPU 30 determines whether or not the printing of the image data for the first movement operation has been completed (S33). If the CPU 30 determines that the printing of the first movement operation has not been completed (S33: NO), it conveys the platen 20 in the Y-axis direction to the next printing position (S32). The CPU 30 returns to S31 again and executes printing of the next line. The CPU 30 repeats S32 and S31 until the printing of the image data for the first movement operation is completed (S33: NO). As shown in FIG. 1, the platen 20 is gradually conveyed in a direction protruding from the opening 7 of the housing 5. When the CPU 30 determines that printing for one moving operation has been completed (S33: YES), the CPU 30 adds 1 to the value of the end protrusion counter (M) stored in the RAM 32 (S34). The CPU 30 ends the printing process of the first movement operation, and returns the process to S20 of FIG.

  Returning to FIG. 6, the CPU 30 determines whether or not the number of end protrusions (M) has reached the number of protrusions (N) (S20). When the CPU 30 determines that the number of end protrusions (M) has not yet reached the number of protrusions (N) (S20: NO), the CPU 30 returns to S17 and updates the number of end protrusions (M) displayed on the display 9. And display. For example, when the number of end protrusions (M) at the current time is 2, as shown in FIG. 9, the number of end protrusions (M) is displayed as “2/4”. The operator who has seen this can recognize that the printing has not yet been completed because the platen 20 protrudes from the opening 7 and is transported twice after the printing is completed. In addition, since the remaining number of protrusions is also known, it can be used as a guide for how long it takes to finish printing. Therefore, it is possible to effectively prevent the operator from touching the T-shirt on the platen 20 accidentally during printing.

  Next, the CPU 30 moves to the print start position of the image data of the N movement operation (S18). The CPU 30 executes the above-described printing process (S19), and repeats S17 to S20 until the end protrusion count (M) reaches the protrusion count (N) (S20: NO). When the CPU 30 determines that the number of end protrusions (M) has reached the number of protrusions (N) (S20: YES), the printing of the total number of movement operations has been completed. 3) (S21). The platen 20 is completely exposed to the outside of the housing 5. The operator can remove the printed T-shirt from the platen 20 and attach the next T-shirt. The CPU 30 thus ends the main process.

  In the above description, the Y-axis guide rail 19, the Y-axis feed screw (not shown), and the Y-axis motor 42 (see FIG. 4) shown in FIG. 2 are examples of the “feed mechanism” of the present invention. The display 9 shown in FIG. 1 is an example of the “display unit” in the present invention. The USB interface 37 shown in FIG. 4 is an example of the “print data acquisition unit” in the present invention. The CPU 30 that executes the process of S14 in FIG. 6 is an example of the “projection number acquisition unit” of the present invention, and the CPU 30 that executes the process of S17 is an example of the “notification unit” of the present invention.

  As described above, the printer 1 of this embodiment can print an image by ejecting ink onto a T-shirt that is a fabric. The printer 1 repeatedly moves the platen 20 that supports the T-shirt inside and outside the housing 5 for the convenience of applying various inks to the T-shirt. In the present embodiment, when the image is printed on one T-shirt, the number of protrusions (N) that the platen 20 conveys in the direction protruding from the opening 7 of the housing 5 can be displayed on the display 9. Thereby, even if the platen 20 protrudes from the opening 7 of the housing 5, the operator does not mistake that the printing is finished, so that the operator can be prevented from touching the T-shirt on the platen 20.

  In the above embodiment, in particular, the print data 50 transmitted from the PC 39 can be received, and the number of protrusions (N) included in the print data 50 can be acquired. This eliminates the need to calculate the number of protrusions (N) in the printer 1, thereby reducing the load on the CPU 30.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation is possible. For example, in the above embodiment, the number of protrusions (N) of the platen 20 is displayed in a fractional manner (see FIG. 9). For example, as shown in FIG. 10, on the display 9, the number of protrusions (N) of the platen 20 may be counted down according to the number of protrusions (M) to display the remaining number of protrusions. For example, when printing is started, the Move column may be reversed in black and white to display the number of protrusions (N) as white.

  In the above-described embodiment, image data to be printed is transmitted as print data 50 from the PC 39 as needed. For example, the print data may be stored in advance in a memory built in the printer 1. For example, it may be stored in the flash memory 45 shown in FIG. 4 (an example of the storage means of the present invention). In this case, the number of protrusions (N) may be acquired based on the print data stored in the memory. In the above embodiment, the flash memory 45 may not be provided. In addition, a USB memory or various memory cards that store print data may be connected to the USB interface, and the print data may be acquired from these memories.

  Moreover, in the said embodiment, although the printing mechanism 3 of the printer 1 is covered with the housing | casing 5 formed with the flat plate-shaped board body, it is applicable also to a printer without such a housing | casing 5. FIG. For example, in a printer in which the printing mechanism 3 is exposed and the platen is repeatedly conveyed in a direction protruding from the front side of the printer during printing, the front side is set as the reference position, and the platen protrudes from the reference position. You may make it display the number of protrusions conveyed on a display. The housing 5 may be a frame-like frame body that does not have a cover such as the front cover 6 in particular. In this case, by setting the foremost position of the frame corresponding to the front frame member 5A shown in FIG. 2 as the reference position, the same effect as in the above embodiment can be obtained.

  Moreover, in the said embodiment, although the frequency | count (N) of protrusion is displayed on the display 9, you may alert | report with an audio | voice. Further, the number of protrusions (N) may be notified by light emitting means such as a lamp. In this case, for example, the number of protrusions (N) may be notified by adjusting the number of light emitting means to be turned on and the number of blinks. Also, only the number of protrusions (N) may be displayed without displaying the end protrusion number (M). Since the operator knows the number of protrusions (N), if the number of times the platen is protruded during printing is counted, if the number is less than the number of protrusions (N), printing is in progress, and if it is the same as the number of protrusions (N) It is possible to grasp that printing has ended.

  In the above-described embodiment, when printing is performed by ejecting CMYK color ink on the white area after ejecting the white ink first on the print area, printing with the white ink is performed in order to increase the white density. However, the present invention is not limited to this case. Of course, the present invention can be applied to a case where printing with white ink or ink of each color is repeated a plurality of times in the same print area in order to print an image more clearly regardless of the background color of the T-shirt. In addition, the methods according to the above-described embodiments and modifications may be used in appropriate combination. Moreover, although not illustrated one by one, the present invention can be implemented with various modifications within a range not departing from the gist thereof.

1 Printer (inkjet recording device)
3 Printing Mechanism 5 Housing 7 Opening 9 Display 13 Recording Head 15 Carriage 16 Recording Head 19 Y-axis Guide Rail 20 Platen 30 CPU
32 RAM
41 X-axis motor 42 Y-axis motor 45 Flash memory 50 Print data

Claims (6)

A housing, and a recording head that is provided in the housing and performs recording by ejecting ink onto a recording medium;
A platen provided in the housing so as to be able to move in and out, and supporting the recording medium so as to be movable relative to the recording head;
A feeding mechanism for conveying the platen inside and outside the housing;
An ink jet recording apparatus comprising a control means for controlling the recording head and the feed mechanism based on print data,
The controller is
A number-of-projections acquisition means for acquiring the number of protrusions in which the feeding mechanism conveys the platen in a direction protruding outward from the housing;
An ink jet recording apparatus comprising: an informing means for informing the number of protrusions acquired by the protrusion number acquiring means. Comprising print data acquisition means for acquiring the print data;
The protrusion number acquisition means includes:
The inkjet recording apparatus according to claim 1, wherein the number of protrusions is acquired based on the print data acquired by the print data acquisition unit. Storage means for storing the print data;
The protrusion number acquisition means includes:
The inkjet recording apparatus according to claim 1, wherein the number of protrusions is acquired based on the print data stored in the storage unit. With a display,
4. The ink jet recording apparatus according to claim 1, wherein the notification unit displays and notifies the number of protrusions acquired by the protrusion number acquisition unit on the display unit. 5. The recording head is
A preprocessing head that ejects preprocessing ink onto the recording medium;
The inkjet recording apparatus according to claim 1, further comprising a post-processing head that ejects post-processing ink onto the recording medium on which the pre-processing has been performed. A recording head that performs recording by ejecting ink onto a recording medium;
A platen that supports the recording medium so as to be movable relative to the recording head;
A feeding mechanism for conveying the platen to one side and the other side in the scanning direction;
An ink jet recording apparatus comprising a control means for controlling the recording head and the feed mechanism based on print data,
When the feeding mechanism prints the print data, the number of protrusions acquiring means for acquiring the number of protrusions when the platen protrudes from the reference position to the one side and is then transferred to the other side; and
An ink jet recording apparatus comprising: an informing means for informing the number of protrusions acquired by the protrusion number acquiring means.

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