JP2010240954A - Liquid ejecting apparatus and control method for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eject liquid from a liquid ejecting means into a region including the side edges of targets with various widths. <P>SOLUTION: The main scanning direction position of a platen 36 is adjusted by controlling a position adjusting mechanism 40 so that both side edges of paper may pass on an ink receiving region 52 when printing the paper, and after the adjustment, the paper is printed while conveying the paper. Marginless printing is thereby performed to at least the side edges of the paper of various sizes (widths). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a liquid ejection apparatus and a control method thereof.

  Conventionally, as this type of liquid ejection device, a rib is formed on the platen surface (upper surface of the platen) at a predetermined interval in the main scanning direction and a recess (groove) extending in the main scanning direction and a side edge of the paper There has been proposed a method in which a rectangular concave portion is formed in a portion to be positioned in (see, for example, Patent Document 1). In this apparatus, at the time of borderless printing, the ink that has come off the edge of the paper is discarded into the recess, so that the platen surface is not soiled with ink.

JP 2004-155109 A

  In such a liquid ejecting apparatus, depending on the width of the paper, a part of the portion that should be positioned on the side edge of the paper may be on the rib. It may be desired to allow borderless printing.

  The main object of the liquid ejection apparatus and the control method thereof according to the present invention is to enable liquid to be ejected from the liquid ejection means to a region including the side edge of the target having various widths.

  The liquid ejection apparatus and the control method thereof according to the present invention employ the following means in order to achieve the main object described above.

The liquid ejection device of the present invention is
A liquid ejection device for ejecting liquid to a target,
Conveying means for conveying the target;
Liquid ejecting means for ejecting liquid from each of a plurality of nozzles to the target with movement in an orthogonal direction perpendicular to the transport direction of the target;
A target passing section having a support section for supporting the target transported by the transport section, and a liquid receiving section for receiving the liquid ejected from each nozzle of the liquid ejection section and coming off the target;
Position adjusting means for adjusting the position of the target passing portion;
Control means for controlling the transport means and the liquid discharge means;
With
The liquid receiving portion includes a plurality of long regions in the orthogonal direction that are regions in which the length in the transport direction is longer than the length of the nozzle row in the transport direction of the liquid ejection means,
The control means, when discharging liquid from the liquid discharge means to a region including a side edge of the target, the position of the target passing portion is set to a position where both side ends of the target pass over the long region. Controlling the position adjusting means, and after the control, the transport means and the transport means and the liquid ejecting means so that liquid is ejected from each nozzle of the liquid ejecting means in accordance with an image to be formed on the target while passing through the target passing portion. Controlling the liquid ejection means;
It is characterized by that.

  In the liquid ejection apparatus according to the present invention, when liquid is ejected from the liquid ejection means to the region including the side edge of the target, the position of the target passage portion is a support section that supports the target conveyed by the conveyance means, A liquid that includes a plurality of long regions in a direction orthogonal to each other and whose length in the direction is longer than the length of the nozzle row in the transport direction of the liquid discharge means, and receives the liquid discharged from each nozzle of the liquid discharge means and deviating from the target The position adjusting means is controlled so that the both ends of the target pass through the long region in the target passing portion having the receiving portion, and after that, the image to be formed on the target while passing the target passing portion. Accordingly, the transport unit and the liquid discharge unit are controlled so that the liquid is discharged from each nozzle of the liquid discharge unit. That is, when liquid is ejected from the liquid ejecting means to the area including the side edge of the target, the position of the target passing portion when the liquid is ejected from the liquid ejecting means is the position where both side ends of the target pass over the long area. The position of the target passing portion is adjusted so that, after the adjustment, the liquid is discharged from each nozzle of the liquid discharging means according to the image to be formed on the target while passing the target through the target passing portion. As a result, the liquid that has come off the side edge of the target reaches the liquid receiving portion and does not adhere to the support portion, so that the next time the liquid is discharged to the target, the target has various widths without causing contamination. Liquid can be discharged from the liquid discharge means to a region including the side edge of the target.

  In such a liquid ejection apparatus of the present invention, the position adjusting means may be means for adjusting the position of the target passing portion by translating the target passing portion in the orthogonal direction. In this way, by adjusting the position of the target passing portion by translating the target passing portion in the orthogonal direction, it is possible to discharge the liquid from the liquid discharging means to the region including the side edge with respect to the target having various widths. can do. In this case, any one of the plurality of long regions of the liquid receiving portion is disposed at a predetermined position in the orthogonal direction and corresponds to a position in the orthogonal direction corresponding to one side end of the target conveyed in the conveyance direction. In addition, it is also possible to form such that one side end of the target passes above when the liquid is ejected from the liquid ejecting means regardless of the movement of the target passing portion in the orthogonal direction.

  Further, in the liquid ejection apparatus of the present invention, the target passage portion is formed by forming the long region of the liquid receiving portion at all positions in the orthogonal direction, and the position adjusting means moves the target passage portion to the target passage portion. It can also be a means for adjusting the position of the target passing portion by moving in parallel in the transport direction. In this way, the liquid can be ejected from the liquid ejecting means to the region including the side edge with respect to the target having various widths by adjusting the position of the target passing portion by moving the target passing portion in the transport direction. can do. In this case, any one of the plurality of long regions of the liquid receiving portion is disposed at a predetermined position in the orthogonal direction and corresponds to a position in the orthogonal direction corresponding to one side end of the target conveyed in the conveyance direction. In addition, it is also possible to form such that one side end of the target passes above when the liquid is ejected from the liquid ejecting means regardless of the rotation of the target passage portion.

  Furthermore, in the liquid ejection apparatus according to the present invention, the target passage portion is formed in a cylindrical shape that can rotate along the transport direction, and the long region of the liquid receiving portion is formed at all positions in the orthogonal direction. Thus, the position adjusting means may be means for adjusting the position of the target passing portion by rotating the target passing portion. In this case, by rotating the target passage portion and adjusting the position of the target passage portion, it is possible to discharge the liquid from the liquid discharge means to the region including the side end with respect to the target having various widths. . In this case, any one of the plurality of long regions of the liquid receiving portion is disposed at a predetermined position in the orthogonal direction and corresponds to a position in the orthogonal direction corresponding to one side end of the target conveyed in the conveyance direction. In addition, it is also possible to form such that one side end of the target passes above when the liquid is ejected from the liquid ejecting means regardless of the movement of the target passing portion in the transport direction.

  Alternatively, in the liquid ejecting apparatus of the present invention, the liquid receiving portion includes a region that receives liquid that is ejected from a plurality of nozzles of the liquid ejecting means and deviates from an upper end and a lower end of the target in the transport direction. You can also

The method for controlling the liquid ejection apparatus of the present invention includes:
Transport means for transporting the target, liquid ejection means for ejecting liquid from each of a plurality of nozzles to the target with movement in a direction orthogonal to the transport direction of the target, and the target transported by the transport means A target passing portion having a support portion for supporting the liquid, a liquid receiving portion for receiving the liquid discharged from each nozzle of the liquid discharging means and deviating from the target, and a position adjusting means for adjusting the position of the target passing portion, The liquid receiving portion includes a plurality of long regions in the orthogonal direction, each of which is a region in which the length in the transport direction is longer than the length of the nozzle row in the transport direction of the liquid discharge means. A control method,
When the liquid is ejected from the liquid ejecting means to the area including the side edge of the target, the position adjusting means is controlled so that the position of the target passing portion is a position where both side edges of the target pass over the long area. Then, after the control, the transport unit and the liquid discharge unit are arranged so that liquid is discharged from each nozzle of the liquid discharge unit according to an image to be formed on the target while passing through the target passing part. Step to control,
It is characterized by including.

  In the control method of the liquid discharge apparatus of the present invention, when liquid is discharged from the liquid discharge means to the region including the side edge of the target, the position of the target passage portion is supported to support the target transferred by the transfer means. Part, the length in the transport direction is longer than the length of the nozzle row in the transport direction of the liquid ejecting means, and includes a plurality of long regions in the orthogonal direction and ejected from each nozzle of the liquid ejecting means and deviated from the target The position adjusting means is controlled so that both ends of the target pass through the long region of the target passing portion having a liquid receiving portion for receiving the target, and after that, the target is formed on the target while passing the target passing portion. The transport unit and the liquid discharge unit are controlled so that the liquid is discharged from each nozzle of the liquid discharge unit in accordance with the image to be printed. That is, when liquid is ejected from the liquid ejecting means to the area including the side edge of the target, the position of the target passing portion when the liquid is ejected from the liquid ejecting means is the position where both side ends of the target pass over the long area. The position of the target passing portion is adjusted so that, after the adjustment, the liquid is discharged from each nozzle of the liquid discharging means according to the image to be formed on the target while passing the target through the target passing portion. As a result, the liquid that has come off the side edge of the target reaches the liquid receiving portion and does not adhere to the support portion, so that the next time the liquid is discharged to the target, the target has various widths without causing contamination. Liquid can be discharged from the liquid discharge means to a region including the side edge of the target.

FIG. 2 is a configuration diagram showing an outline of the configuration of a printer 20. The block diagram which shows the outline of a structure of the platen 36 and the position adjustment mechanism 40. FIG. 7 is a flowchart illustrating an example of a borderless printing processing routine. FIG. 2 is a configuration diagram showing an outline of the configuration of a platen 136 and a position adjustment mechanism 140. The block diagram which shows the outline of a structure of the platen 236 and the position adjustment mechanism 240.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram illustrating an example of a schematic configuration of a printer 20 according to an embodiment of the present invention, and FIG. 2 is a configuration diagram illustrating an overview of the configuration of a platen 36 and a position adjustment mechanism 40. In FIG. 1 and FIG. 2, the liquid receiving portion 52 is hatched for easy viewing. As shown in FIG. 1, the printer 20 of the present embodiment is driven by an ink ejection mechanism 21 that ejects ink as a fluid onto a sheet S as a target, and a drive motor 33, and moves on the platen 36 from the back to the front in the drawing. And a transport mechanism 31 that transports the paper S, a position adjustment mechanism 40 that translates the platen 36 in the horizontal direction in the drawing, and a controller 70 that controls the entire printer 20.

  The ink ejecting mechanism 21 includes a carriage 22 that reciprocates left and right (main scanning direction (orthogonal direction orthogonal to the transport direction of the paper S)) along the carriage shaft 28 by a carriage belt 32, and nozzles that apply pressure to the ink of each color. A print head 24 that ejects ink droplets as a fluid from 23, and black (K), cyan (C), magenta (M), yellow, which is mounted on a carriage 22 and contains a pigment as a colorant in water as a solvent. And an ink cartridge 26 that individually stores the ink of each color (Y) and supplies the stored ink to the print head 24. The carriage 22 moves as the carriage belt 32 installed between the carriage motor 34a attached to the right side of the frame 29 and the driven roller 34b attached to the left side of the frame 29 is driven by the carriage motor 34a. To do. A linear encoder 25 that detects the position of the carriage 22 is disposed on the rear surface of the carriage 22, and the position of the carriage 22 can be managed using the linear encoder 25. The print head 24 is provided in the lower part of the carriage 22, and each color is supplied from a nozzle 23 provided on the lower surface of the print head 24 by applying a voltage to the piezoelectric element to deform the piezoelectric element and pressurize ink droplets. Ink is ejected. On the lower surface of the print head 24, a nozzle row 27 in the transport direction in which the nozzles 23 are arranged is provided for each color. The print head 24 may employ a method of pressurizing ink with bubbles generated by applying voltage to a heating resistor (for example, a heater) to heat the ink. The ink cartridge 26 may be configured as a so-called off-carriage that is attached to the frame 29 and supplies ink or the like to the print head 24 through a tube.

  The transport mechanism 31 includes a paper feed roller 35 that transports the paper S onto the platen 36, a paper discharge roller 39 that discharges the printed paper S, and a drive motor 33 that rotates the paper feed roller 35 and the paper discharge roller 39. And.

  As shown in FIGS. 1 and 2, the platen 36 receives a rib 36a as a support portion for supporting the conveyed paper S, and ink ejected from the print head 24 provided around the rib 36a. An ink receiving area 52 for absorption. A plurality of ribs 36a are provided with a predetermined width at predetermined intervals in the longitudinal direction (main scanning direction) of the platen 36. The ink receiving area 52 is formed such that the length in the transport direction of the portion without the rib 36a is longer than the nozzle row 27 in the transport direction of the print head 24, and the length in the main scanning direction of the portion without the rib 36a. Is formed so as to be longer than the width of the largest size paper S among the standard sizes (for example, postcard size, B5 size, A4 size, etc.), and the ink receiving area 52 is filled with ink protruding from the paper S. A sponge is laid down to absorb. In the main scanning direction, the ink receiving area 52 is formed such that the length (width) in the main scanning direction is longer than the moving range of the platen 36 in the main scanning direction, as indicated by the dashed frame of the ink receiving area 52 in FIG. And a side end receiving area 52a for receiving the ink protruding from the right end of the sheet S and a plurality of side end receiving areas 52b for receiving the ink protruding from the left end of the sheet S. 52 b is formed so that the length in the transport direction is longer than the length of the nozzle row 27 in the transport direction of the print head 24. Therefore, when the right side edge of the paper S is arranged along the reference guide 38 that guides the paper S, the right side edge of the paper S is the side edge receiving area 52a regardless of the position of the platen 36 in the main scanning direction. Pass above. Further, in the transport direction, the ink receiving area 52 includes an upper end receiving area 52f that absorbs ink that protrudes from the upper end of the sheet S, as shown by a two-dot chain line of the ink receiving area 52 in FIG. A lower end receiving area 52g that absorbs ink protruding from the lower end, and the upper end receiving area 52f and the lower end receiving area 52g have a length in the main scanning direction that is longer than the width of the largest size among the standard sizes. Is formed.

  The position adjustment mechanism 40 includes a groove cam 42 provided with a groove 44 that is eccentric with respect to the rotation shaft 43, and a cam follower 46 that is coupled to the platen 36 and has an end fitted into the groove 44 of the groove cam 43. Prepare. The position adjusting mechanism 40 integrally moves the platen 36 and the cam follower 46 in the main scanning direction by the rotation of the groove cam 42 driven by a driving motor (not shown). In this embodiment, the main scanning of the rib 36a is performed. It is assumed that the platen 36 can be translated in the main scanning direction by a length longer than the width in the direction. Therefore, the platen 36 is translated in the main scanning direction by the position adjusting mechanism 40 so that the both side edges of the paper S pass over the ink receiving area 52 when the paper S having a width of A4 size or less is arranged in a standard manner. be able to. The position adjusting mechanism 40 may be a mechanism that translates the platen 36 in the main scanning direction by a length equal to or greater than the width of the rib 36a in the main scanning direction. For example, the end adjustment cam, cylindrical groove cam, rack and -A mechanism using a pinion or the like may be used.

  As shown in FIG. 1, the controller 70 is configured as a microprocessor centered on the CPU 72, a flash ROM 74 capable of storing various processing programs and writing and erasing data, and temporarily storing data and data. A RAM 76 for storing data, an interface (I / F) 78 for exchanging information with an external device, and an input / output port (not shown) are provided. The controller 70 is a device for a user to input various instructions to the printer 20, and includes a display unit configured by a color liquid crystal panel on which characters and images corresponding to the various instructions are displayed, An operation panel 79 provided with an operation unit on which keys and the like for operation are arranged is electrically connected. The controller 70 receives a position signal of the carriage 22 from the linear encoder 25 and an operation signal from the operation panel 79 via an input port (not shown) and prints output from a user personal computer (PC) 80. A job or the like is input via the I / F 78. Further, from the controller 70, a control signal to the print head 24, a control signal to the drive motor 33, a control signal to the carriage motor 34 a, a control signal to the drive motor (not shown) of the position adjustment mechanism 40, A signal or the like is output via an output port (not shown).

  In the printer 20 of this embodiment, when image data to be printed is received from the user PC 80 with the designation of print settings and printing on the paper S is performed, the image data is expanded to generate expanded data, The carriage 22 is reciprocated by the carriage motor 34a while the paper S is conveyed by rotating the paper feed roller 35 and the paper discharge roller 39 by the drive motor 33, and at the same time, a voltage is applied to the piezoelectric element of the print head 24 based on the development data. Thus, each color ink is ejected from each nozzle 23 to form a color image on the paper S. Here, the print settings include the presence / absence of margins set on the paper S, that is, the presence / absence of execution of borderless printing, the size of the paper S, the paper type, and the like. In this embodiment, the user PC 80 processes the image data into image data larger than the size of the paper S so that no border (margin) is generated on the paper S when the user selects borderless printing. The data is transmitted to the printer 20.

  Next, the operation of the printer 20 of the present embodiment configured as described above, particularly the operation when an instruction to perform borderless printing is given will be described. FIG. 3 is a flowchart illustrating an example of a borderless print processing routine executed by the controller 70 of the present embodiment. A program for executing this routine is stored in the flash ROM 74, and is executed by the CPU 72 of the controller 70 when an instruction for a borderless designated print job is received from the user PC 80. In addition to the image data to be printed, this print job includes setting information such as the size information and paper type of the designated paper S. Hereinafter, for convenience of description, as setting information, margins are set for the upper end (leading end in the transport direction) and the lower end (rear end in the transport direction) of the sheet S, and no margin is set for the left end and the right end (margin 0 mm). The case when it is set will be described. It is assumed that the right side of the sheet S is in the reference arrangement in which the right end is arranged along the reference guide 38.

  When the borderless printing processing routine is executed, the CPU 72 of the controller 70 first inputs the size information of the paper S among the setting information from the user PC 80 (step S100), and based on the input size of the paper S. Then, the position adjusting mechanism 40 is controlled so that the position of the platen 36 is adjusted so that the extension line of the side edge of the paper S and the rib 36a do not overlap (step S110). In steps S100 and S110, a platen is driven by driving a drive motor (not shown) of the position adjusting mechanism 40 as necessary so that the left end of the sheet S passes over the side end receiving area 52b when printing is performed. This is a process of translating 36 in the main scanning direction. Even if the platen 36 is translated in the main scanning direction by this process, the right edge of the sheet S passes over the side edge receiving area 52a when printing.

  When the position of the platen 36 in the main scanning direction is adjusted in this way, printing on the paper S is performed (step S120), it is determined whether there is next image data to be printed (step S130), and if image data exists. When it is determined, the process returns to step S100 and the processes of steps S100 to S130 are repeated. When it is determined that there is no image data, this routine is finished. Here, in printing on the paper S, specifically, the image data is developed to generate development data, and the drive motor 33 is configured so that the paper S is conveyed in the conveyance direction by the paper feed roller 35 and the paper discharge roller 39. And the carriage motor 34a and the print head 24 are controlled so that ink droplets are ejected from the nozzles 23 of the print head 24 based on the development data with reciprocation in the main scanning direction. . In the present embodiment, since it is considered that margins are set for the upper and lower edges of the paper S and no margin is set for the side edges of the paper S, ink that is off the side edges of the paper S is received by the side edge receiver. It is absorbed by the sponges in the regions 52a and 52b. By performing printing in this way, the ink ejected from the nozzles 23 of the print head 24 and removed from the paper S does not adhere to the ribs 36a and is absorbed by the sponge in the ink receiving area 52. Without causing the paper S to become dirty, it is possible to perform borderless printing at least on the side edges of the paper S of various sizes (widths).

  Here, the correspondence between the components of the present embodiment and the components of the present invention will be clarified. The transport mechanism 31 of the present embodiment corresponds to the transport means of the present invention, the print head 24 corresponds to the liquid discharge means, the platen 36 having the ink receiving area 52 and the ribs 36a corresponds to the target passage portion, and the position adjusting mechanism. Reference numeral 40 corresponds to position adjusting means, and the controller 70 corresponds to control means. In the present embodiment, an example of the method for controlling the liquid ejection apparatus of the present invention is also clarified by describing the operation of the printer 20 as the liquid ejection apparatus.

  According to the printer 20 of the embodiment described above, the position adjustment mechanism 40 is controlled so that both side edges of the paper S pass over the ink receiving area 52, and the position of the platen 36 in the main scanning direction is adjusted. Since printing is performed on the paper S while the paper S is being conveyed, borderless printing can be performed on at least the side edges of the paper S of various sizes (widths).

  It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that the present invention can be implemented in various modes as long as it belongs to the technical scope of the present invention.

  In the above-described embodiment, the case where margins are set for the upper end and the lower end of the paper S and no margin is set for the side edges of the paper S has been described, but not only the side edges of the paper S but also the upper and lower ends. When no margin is set, printing may be performed on the upper and lower edges of the paper S as in the present embodiment. In this case, when the upper end of the paper S is printed, the ink that is off the upper end or the side edge of the paper S is absorbed by the sponges in the side edge receiving areas 52a and 52b and the upper edge receiving area 52f, and the lower edge of the paper S is printed. In doing so, the ink that has deviated from the lower end and side edges of the paper S is absorbed by the sponges in the side end receiving areas 52a and 52b and the lower end receiving area 52g.

  In the above-described embodiment, as illustrated in FIG. 2, the platen 36 and the position adjusting mechanism 40 that translates the platen 36 in the main scanning direction are provided. However, as illustrated in FIG. 5 and a position adjusting mechanism 140 (for example, a drive motor) that rotates the platen 136 along the transport direction, and a platen 236 as illustrated in FIG. A position adjustment mechanism 240 that translates the platen 236 in the transport direction (for example, a configuration similar to the position adjustment mechanism 40) may be provided. In the example of FIG. 4, the platen 136 includes a rib 136 a and an ink receiving area 152, and the ink receiving area 152 in the main scanning direction is on the right side of the sheet S at the time of reference arrangement as indicated by a broken line in the drawing. A side edge receiving area 152a that receives the ink that is formed over the entire circumference so that the edge passes over the edge and protrudes from the right edge of the sheet S, and at all positions in the main scanning direction outside the side edge receiving area 152a. A side end receiving region 152b configured to receive the ink that is formed so that the length in the transport direction is longer than the nozzle row 27 in the transport direction of the print head 24 and deviates from the left end of the paper S. As indicated by the two-dot chain line in the figure, the length in the main scanning direction is formed to be longer than the width of the largest size among the standard sizes (for example, postcard size, B5 size, A4 size, etc.). Having a lower end receiving area 152f on receiving the ink protruding a top or bottom end of the S. In this case, when performing printing, the platen 36 is rotated by controlling the position adjusting mechanism 40 based on the width of the sheet S so that both side edges of the sheet S pass over the side edge receiving areas 152a and 152b. By printing on the paper S, borderless printing can be performed on at least the side edges of the paper S of various sizes (widths). When performing borderless printing not only on the side edges of the paper S but also on the top and bottom edges, both side edges of the paper S pass over the side edge receiving areas 152a and 152b and the print head 24 is printed. The position adjustment mechanism 140 may be controlled to rotate the platen 136 so that the liquid ejected from the nozzles 23 of at least some of the nozzle rows in the main scanning direction can be received by the upper and lower end receiving regions 152f. In the example of FIG. 5, the platen 236 includes a rib 236 a and an ink receiving area 252, and the ink receiving area 252 has a length in the transport direction in the main scanning direction, as indicated by a dashed frame in the figure. Is longer than the moving range of the platen 236 in the conveyance direction, and absorbs the ink that deviates from the right edge of the sheet S, and at all positions in the main scanning direction outside the side edge receiving area 252a. A side end receiving area 252b that absorbs ink that is formed so that the length in the transport direction is longer than the nozzle row 27 in the transport direction of the print head 24 and that is out of the left end of the paper S. As shown by the two-dot chain line in the figure, the ink that is formed so that the length in the main scanning direction is longer than the width of the largest size among the standard sizes and receives the ink protruding from the upper end and the lower end of the paper S is received. Up and down Received has an area 252f. In this case, when performing printing, the position adjusting mechanism 40 is controlled based on the width of the sheet S so that both side edges of the sheet S pass over the side edge receiving areas 252a and 252b, and the platen 36 is translated in the transport direction. Then, by performing printing on the paper S, borderless printing can be performed on at least the side edges of the paper S of various sizes (widths). When performing borderless printing not only on the side edges of the paper S but also on the top and bottom edges, both side edges of the paper S pass over the side edge receiving areas 252a and 252b and the print head 24 is used for printing. The platen 236 may be moved by controlling the position adjusting mechanism 240 so that the liquid ejected from the nozzles 23 of at least some of the nozzle rows in the main scanning direction can be received by the upper and lower end receiving regions 252f.

  In the embodiment described above, the position of the platen 36 is adjusted based on the size information of the paper S when the right side edge of the paper S is arranged along the reference guide 38 that guides the paper S, and the edge of the paper S is adjusted. Although the case of performing non-printing has been described, a side edge detection sensor (not shown) that detects the side edge of the paper S (for example, an optical sensor constituted by a light emitting part such as a light emitting diode and a light receiving part such as a phototransistor) When the positions of the right end and the left end of the sheet S in the main scanning direction are detected based on the detected values of (), the sheet S is printed when printing on the sheet S is performed based on the detected right end and left end of the sheet S. Printing on the paper S may be performed after adjusting the position of the platen 36 so that both side edges of S pass over the side edge receiving areas 52a and 52b.

  In the above-described embodiment, the length in the main scanning direction of the ink receiving area 52 is formed to be longer than the largest A4 size width among the standard sizes, but the largest size among the standard sizes. Is not limited to A4 size, and may be A0 size, half-cut size, A3 size, or the like. That is, the length in the main scanning direction of the ink receiving area 52 may be longer than any width such as the A0 size, the half-cut size, or the A3 size.

  In the above-described embodiment, the example in which the fluid ejection device of the present invention is embodied in the printer 20 has been described. However, a liquid (dispersion liquid) in which particles of liquid other than ink or functional material are dispersed is used. The present invention may be embodied in a fluid ejection device that ejects such a fluid or the like, or may be embodied in a fluid ejection device that ejects a solid that can be ejected as a fluid. For example, a liquid ejecting apparatus that ejects a liquid in which a material such as an electrode material or a color material used for manufacturing a liquid crystal display, an EL (electroluminescence) display, and a surface emitting display is ejected, and a liquid material in which the material is dispersed is ejected. It is good also as a liquid discharge apparatus which discharges the liquid used as a liquid body discharge apparatus and a precision pipette as a sample. Also, transparent resin liquids such as UV curable resin to form liquid ejection devices that pinpoint lubricating oil to precision machines such as watches and cameras, micro hemispherical lenses (optical lenses) used for optical communication elements, etc. A liquid discharge device that discharges a liquid onto a substrate, a liquid discharge device that discharges an etching liquid such as acid or alkali to etch the substrate, a fluid discharge device that discharges gel, a powder that discharges powder such as toner A body discharge type recording apparatus may be used.

  The embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and can of course be implemented in various modes as long as they belong to the technical scope of the present invention.

  20 Printer, 21 Ink Ejecting Mechanism, 22 Carriage, 23 Nozzle, 24 Print Head, 25 Linear Encoder, 26 Ink Cartridge, 27 Nozzle Row, 28 Carriage Shaft, 29 Frame, 31 Conveying Mechanism, 32 Carriage Belt, 33 Drive Motor, 34a Carriage motor, 34b Driven roller, 35 Paper feed roller, 36, 136, 236 Platen, 36a, 136a, 236a Rib, 38 Reference guide, 39 Paper discharge roller, 40, 140, 240 Position adjustment mechanism, 52 Ink receiving area, 52a, 52b, 152a, 152b, 252a, 252b side end receiving area, 52f upper end receiving area, 52g lower end receiving area, 152f, 252f upper and lower end receiving area, 70 controller, 72 CPU, 74 hula Cache ROM, 76 RAM, 78 interface, 79 operation panel, 80 user PC.

Claims (5)

A liquid ejection device for ejecting liquid to a target,
Conveying means for conveying the target;
Liquid ejecting means for ejecting liquid from each of a plurality of nozzles to the target with movement in an orthogonal direction perpendicular to the transport direction of the target;
A target passing section having a support section for supporting the target transported by the transport section, and a liquid receiving section for receiving the liquid ejected from each nozzle of the liquid ejection section and coming off the target;
Position adjusting means for adjusting the position of the target passing portion;
Control means for controlling the transport means and the liquid discharge means;
With
The liquid receiving portion includes a plurality of long regions in the orthogonal direction that are regions in which the length in the transport direction is longer than the length of the nozzle row in the transport direction of the liquid ejection means,
The control means, when discharging liquid from the liquid discharge means to a region including a side edge of the target, the position of the target passing portion is set to a position where both side ends of the target pass over the long region. Controlling the position adjusting means, and after the control, the transport means and the transport means and the liquid ejecting means so that liquid is ejected from each nozzle of the liquid ejecting means in accordance with an image to be formed on the target while passing through the target passing portion. Controlling the liquid ejection means;
A liquid discharge apparatus characterized by the above. The liquid ejection device according to claim 1,
The position adjusting means is means for adjusting the position of the target passing portion by translating the target passing portion in the orthogonal direction.
Liquid ejection device. The liquid ejection device according to claim 1,
The target passing portion is formed such that the long region of the liquid receiving portion is formed at all positions in the orthogonal direction.
The position adjusting means is means for adjusting the position of the target passing portion by translating the target passing portion in the transport direction.
Liquid ejection device. The liquid ejection device according to claim 1,
The target passage portion is formed in a cylindrical shape that can rotate along the transport direction and the long region of the liquid receiving portion is formed at all positions in the orthogonal direction.
The position adjusting means is means for adjusting the position of the target passing portion by rotating the target passing portion.
Liquid ejection device. Transport means for transporting the target, liquid ejection means for ejecting liquid from each of a plurality of nozzles to the target with movement in a direction orthogonal to the transport direction of the target, and the target transported by the transport means A target passing portion having a support portion for supporting the liquid, a liquid receiving portion for receiving the liquid discharged from each nozzle of the liquid discharging means and deviating from the target, and a position adjusting means for adjusting the position of the target passing portion, The liquid receiving portion includes a plurality of long regions in the orthogonal direction, each of which is a region in which the length in the transport direction is longer than the length of the nozzle row in the transport direction of the liquid discharge means. A control method,
When the liquid is ejected from the liquid ejecting means to the area including the side edge of the target, the position adjusting means is controlled so that the position of the target passing portion is a position where both side edges of the target pass over the long area. Then, after the control, the transport unit and the liquid discharge unit are arranged so that liquid is discharged from each nozzle of the liquid discharge unit according to an image to be formed on the target while passing through the target passing part. Step to control,
A control method for a liquid ejection apparatus, comprising:

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