Recording device

Abstract

To suppress a recording medium from floating, by controlling a portion where to float of the recording medium occurs.SOLUTION: A recording device comprises: conveying means; recording means that records an image on a conveyed recording medium; a platen part that supports the conveyed recording medium from below, while opposing to the recording means; regulating means, arranged at a downstream side of the recording means in a conveying direction, which regulates a height of the recording medium from an upper side of the recording medium; and a guide part, arranged at a downstream side of the platen part, which guides conveyance of the recording medium. The guide part includes a first downward inclined part inclined from the platen part, a second downward inclined part arranged closer to a downstream side in the conveying direction with respect to the first downward inclined part, and an upward inclined part inclined from the second downward inclined part. The second downward inclined part is gentler in slope than the first downward inclined part, and the regulating means is arranged to oppose to the guide part.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a recording device. [Background technology]

[0002] A recording device performs recording using a recording head while transporting a recording medium between the recording head and a platen. If the recording medium is curled, it may lift up during transport and come into contact with the recording head. While curling of the recording medium can occur in cut sheets as well, it is more likely to occur in rolled sheets due to their tendency to curl. Patent Document 1 discloses a technology that suppresses the lifting of the recording medium by using a guide surface shape at the leading edge of the recording medium. Patent Document 2 also discloses a technology that suppresses the lifting of the recording medium by providing a dedicated spur. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 04442456 [Patent Document 2] Japanese Patent Application Laid-Open No. 2016-160024 Summary of the Invention [Problem to be solved by the invention]

[0004] The position at which the leading edge of the recording medium lifts up after passing the recording head and before reaching the discharge roller may vary depending on the stiffness and degree of curl of the recording medium. If the position at which the lifting occurs can be controlled, it will be easier to take measures to prevent this.

[0005] The present invention provides a technique for controlling the position where the recording medium lifts up, thereby suppressing the lift. [Means for solving the problem]

[0006] According to the present invention, a conveying means for conveying the recording medium in a conveying direction; a recording means for recording an image on the recording medium conveyed by the conveying means; a platen portion that faces the recording means and supports from below the recording medium that is conveyed by the conveying means; a regulating means disposed downstream of the recording means in the transport direction and configured to regulate the height of the recording medium from above the recording medium; a guide unit disposed downstream of the platen unit in the transport direction and configured to guide transport of the recording medium, The guide unit is a first downwardly inclined portion inclined from the platen portion toward a downstream side in the transport direction in a direction away from a support height of the recording medium on the platen portion; a second downward inclined portion disposed downstream of the first downward inclined portion in the conveying direction and inclined toward the downstream side in the conveying direction in a direction away from the support height; an upward inclined portion inclined from the second downward inclined portion toward the downstream side in the conveying direction in a direction approaching the support height, the second downwardly inclined portion has a gentler slope than the first downwardly inclined portion, The restricting means faces the guide portion. A recording device is provided. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a technique for controlling the position where the recording medium lifts up and suppressing the lift. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram of a recording apparatus according to an embodiment of the present invention. [Figure 2] FIG. 2 is a block diagram of a control unit of the recording apparatus of FIG. 1. [Figure 3] FIG. [Figure 4] Cross-sectional view of line AA in Figure 3. [Figure 5] Cross-sectional view of line BB in Figure 3. [Figure 6] 10A to 10C are explanatory diagrams showing an example in which lifting of a recording medium is restricted. [Figure 7] 10A and 10B are explanatory diagrams showing an example in which lifting of a recording medium is restricted. [Figure 8] FIG. 10 is a perspective view of an assembly of a holding member, a base member, and a height adjustment member. [Figure 9] FIG. 9 is an exploded perspective view of the assembly of FIG. 8. [Figure 10] Enlarged view of area P in Figure 8 (with screws removed). [Figure 11] FIG. 10 is an explanatory diagram of warping of a height adjustment member. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. Note that the following embodiments do not limit the scope of the invention claimed. Although multiple features are described in the embodiments, not all of these multiple features are necessarily essential to the invention, and multiple features may be combined arbitrarily. Furthermore, in the accompanying drawings, the same reference numerals are used to designate the same or similar components, and redundant explanations will be omitted.

[0010] <Outline of the recording device> FIG. 1 is a schematic diagram of a recording apparatus 1 according to this embodiment. In this embodiment, the present invention is described as being applied to a serial-type inkjet recording apparatus, but the present invention can also be applied to other types of recording apparatus. In the figure, arrows X and Y indicate horizontal directions that are orthogonal to each other, and arrow Z indicates the up-down direction. Furthermore, the downstream side and upstream side are based on the direction in which the recording medium is transported.

[0011] "Recording" not only includes the formation of meaningful information such as characters and figures, but also includes the formation of images, patterns, designs, etc. on a recording medium, whether meaningful or insignificant, or the processing of the medium, regardless of whether it is manifested in a way that can be perceived visually by humans. In addition, although sheet-like paper is assumed as the "recording medium" in this embodiment, it may also be cloth, plastic film, etc.

[0012] The recording device 1 includes a mechanism for transporting a recording medium, which includes a feeding unit 2, a transport unit 3, and a discharge unit 4, arranged from upstream in the transport direction of the recording medium. In the following description, upstream and downstream are based on the transport direction of the recording medium. The feeding unit 2 includes a feeding unit 21 that feeds a sheet SH1 as a recording medium, and a feeding unit 22 that feeds a sheet SH2, which is different from the sheet SH1, as a recording medium. In this embodiment, the two feeding units 21 and 22 can selectively feed the recording medium to be recorded on.

[0013] The feeding unit 21 includes a feeding tray 210 (stacking section) capable of stacking a plurality of sheets SH1, a feeding roller 211, and a separating section 213. The sheets SH1 are pre-cut sheets (hereinafter, sometimes referred to as cut sheets SH1) stacked on the feeding tray 210 with their width direction aligned in the Y direction. The feeding roller 211 rotates by the driving force of a feeding motor 212, contacts the uppermost cut sheet SH1 stacked on the feeding tray 210, and transports it downstream. A separating section 213 is provided at the downstream end of the feeding tray 210. The separating section 213 has a structure (e.g., a separating claw) that separates the cut sheets SH1 on the feeding tray 210 one by one when the feeding roller 211 transports the cut sheets SH1.

[0014] The sheet SH2 is a roll sheet (hereinafter, sometimes referred to as the roll sheet SH2) in which one sheet is wound around a cylindrical core. The feeding unit 22 has a support part 221 that rotatably supports the roll sheet SH2. The roll sheet SH2 is supported with its width direction (the axial direction of the roll) aligned with the Y direction. The support part 221 rotates by the driving force of the feeding motor 222, rotating the roll sheet SH2. Depending on the rotation direction of the feeding motor 222, the roll sheet SH2 can be fed out downstream or wound up. The feeding unit 22 has a roller 223 that is pressed against the outer circumferential surface of the roll sheet SH2 by a spring or the like (not shown). The roller 223 is a freely rotating body that presses against the outer circumferential surface of the roll sheet SH2 to ensure stable feeding and winding of the roll sheet SH2.

[0015] As the support portion 221 rotates, the rolled sheet SH2 passes between the sheet guide 10 and a roller 224, which is a free rotating body arranged opposite the sheet guide 10, and is conveyed downstream. The conveyance path for the cut sheet SH1 and the conveyance path for the rolled sheet SH2 merge at a junction downstream of the partition member 10c. After the junction, the conveyance path passes between the sheet guide 10a and the sheet guide 10b opposite the sheet guide 10a, and reaches the conveyance unit 3.

[0016] The transport unit 3 is disposed upstream of the recording head 6 and transports the recording medium (cut sheet SH1 or rolled sheet SH2) transported by the feeding unit 2 to the recording head 6. The transport unit 3 includes a drive roller 31 and a driven roller 32 (pinch roller) that is pressed against the drive roller 31 by a spring or the like (not shown). The drive roller 31 is rotated by the driving force of a transport motor 33. When the transport motor 33 rotates forward, the recording medium is sandwiched in the nip portion between the drive roller 31 and the driven roller 32, and the recording medium (cut sheet SH1 or rolled sheet SH2) is transported downstream in the X direction between the recording head 6 and the support member 8. When the rolled sheet SH2 is being wound up, the transport unit 3 can also transport the rolled sheet SH2 upstream by rotating the transport motor 33 in the reverse direction.

[0017] The support member 8 is a member that supports from below the recording medium transported by the transport unit 3. In this embodiment, the support member 8 is a single member, but it may be composed of multiple members divided in the X direction. The regulating member 12 is disposed in a position facing the support member 8 and regulates the height of the recording medium from above the recording medium, thereby regulating the floating of the recording medium.

[0018] The discharge unit 4 is disposed downstream of the recording head 6 and transports the recording medium (cut sheet SH1 or roll sheet SH2) transported by the transport unit 3 out of the apparatus. The discharge unit 4 includes a drive roller 41 and a spur 42 disposed opposite the drive roller 41 and pressed against the drive roller 41 by a spring or the like (not shown). The drive roller 41 is a rotating member that rotates by the driving force of the transport motor 33 and transports the recording medium downstream. The spur 42 is a rotating member that can rotate together with the drive roller 41, and the recording medium is sandwiched in the nip portion between the drive roller 41 and the spur 42 and transported.

[0019] In this embodiment, the transport motor 33 is shared by the transport unit 3 and the discharge unit 4, but a configuration in which separate motors are provided may also be used.

[0020] A cutting unit 5 is provided downstream of the discharge unit 4. The cutting unit 5 cuts the rolled sheet SH2 on which recording has been performed. The cutting unit 5 includes, for example, cutters with circular blades arranged one above the other, and a movement mechanism (not shown) that moves the cutters in a direction intersecting the recording medium transport direction (the Y direction in this embodiment). The cutters are on standby outside the recording medium transport path, and are moved across the transport path to cut the rolled sheet SH2 when cutting.

[0021] The recording head 6 is disposed downstream of the transport unit 3 and upstream of the discharge unit 4. The recording head 6 performs recording on a recording medium (cut sheet SH1 or roll sheet SH2). In this embodiment, the recording head 6 is an inkjet recording head that ejects ink to perform recording on the recording medium. The recording head 6 is supported by a carriage 7.

[0022] The carriage 7 is driven by a drive unit 11 to reciprocate in a direction intersecting the recording medium. In this embodiment, the carriage 7 reciprocates in the Y direction guided by a guide shaft 9 extending in the Y direction. The drive unit 11 is a mechanism that uses a carriage motor 11a as a drive source, and is, for example, a belt transmission mechanism that includes a drive pulley and a driven pulley spaced apart in the Y direction, and an endless belt wound around these pulleys. The carriage 7 is connected to the endless belt. When the carriage motor 11a rotates the drive pulley, the endless belt runs and the carriage 7 moves. The recording head 6 may be replaceably attached to the carriage 7.

[0023] As described above, the recording device 1 of this embodiment is a serial type recording device in which the recording head 6 is mounted on the carriage 7. Recording control on the recording medium is performed by the transport unit 3 repeating a transport operation (intermittent transport operation) that transports the recording medium a predetermined amount and a recording operation while transport of the transport unit 3 is stopped. The recording operation is an operation in which ink is ejected from the recording head 6 while the carriage 7 carrying the recording head 6 is moved.

[0024] The recording device 1 is equipped with a detection unit 13. The detection unit 13 detects the recording medium at a position upstream of the transport unit 3 and downstream of the feeding unit 2. The detection unit 13 is, for example, an optical sensor that detects the recording medium. Alternatively, the detection unit 13 is, for example, configured with an arm member that is swingably provided in the transport path of the recording medium and swings due to interference with the recording medium, and a sensor that detects the swing of the arm member.

[0025] <Control unit> 2 is a block diagram of the control unit 14 of the recording device 1. The MPU 140 is a processor that controls the various operations of the recording device 1 and the processing of data. The MPU 140 executes programs stored in a storage device 141 to control the entire recording device 1. The storage device 141 is composed of, for example, a ROM or RAM. In addition to the programs executed by the MPU 140, the storage device 141 stores various types of data required for processing, such as data received from the host computer 15.

[0026] The MPU 140 controls the print head 6 via a driver 142a. The MPU 140 controls the carriage motor 11a via a driver 142b. The MPU 140 also controls the transport motor 33, the feed motor 212, and the like via drivers 142c to 142f. 222 , and the cutter motor 5a, which is the drive source of the cutting unit 5.

[0027] The host computer 15 is, for example, a personal computer or a mobile terminal (such as a smartphone or tablet terminal) used by a user. A printer driver 15a that performs communication between the host computer 15 and the recording device 1 is installed in the host computer 15. The recording device 1 is equipped with an interface unit 143, and communication between the host computer 15 and the MPU 140 is performed via the interface unit 143. For example, when a user inputs an instruction to execute recording control to the host computer 15, the printer driver 15a compiles data of the image to be recorded and settings related to recording (information such as the quality of the recorded image), and instructs the recording device 1 to execute recording control. An instruction to execute recording control is sometimes called a recording job.

[0028] <Lifting prevention> The structure for suppressing floating of the recording medium will be described with reference to Figures 3 to 5. Figure 3 is a plan view of the support member 8, showing the spur 42 and the regulating member 12 together. Figure 4 is a cross-sectional view taken along line AA in Figure 3, and Figure 5 is a cross-sectional view taken along line BB in Figure 3.

[0029] The support member 8 has multiple ribs 8a and 8b arranged in the Y direction. Each rib 8a and 8b is a plate-like member extending in the X direction, and its top forms a transport support surface for the recording medium. In this embodiment, the heights (lengths in the Z direction) of the ribs 8a and 8b are different. Because multiple relatively short ribs 8b are arranged between relatively tall ribs 8a, even if the recording medium stretches when ink is applied, the recording medium can be supported along the relatively short ribs 8b. Figure 5 illustrates an example of a stretched roll sheet SH2 being supported by the ribs 8a and 8b. In other words, the recording medium can be prevented from stretching in an upward bulging manner, and contact between the recording medium and the recording head 6 can be prevented.

[0030] The ribs 8a and 8b differ only in height, and have the same contour shape (profile in the XZ plane). In the following explanation, the configuration of the rib 8a will be mainly described, but the rib 8b is also the same.

[0031] The rib 8a has a plurality of portions in the X direction. Specifically, the rib 8a has a platen portion 80 and a guide portion 81. The platen portion 80 is a portion that faces the recording head 6 and forms a flat support surface in the X direction.

[0032] Information department 81 is a part that guides the movement of the leading edge of the recording medium that has passed the recording head 6. 81 The platen 80 includes, in order from the upstream side, a downwardly inclined portion 82, a connecting portion 83, a downwardly inclined portion 84, and an upwardly inclined portion 85. The downwardly inclined portion 82 starts in the X direction at a position slightly upstream of the downstream end of the recording head 6 (the downstream end nozzle), and forms a downward slope that slopes downstream away from the support height H1 of the recording medium at the platen 80 as a reference. The slope is a straight slope without any curvature. The connecting portion 83 is a section that connects the downwardly inclined portion 82 and the downwardly inclined portion 84, and is a flat surface parallel to the support height H1. An embodiment in which the downwardly inclined portion 82 and the downwardly inclined portion 84 are formed continuously without providing the connecting portion 83 may also be adopted.

[0033] The downwardly inclined portion 84 forms a downward slope that slopes downstream away from the support height H1. However, the slope is gentler than that of the downwardly inclined portion 82. The slope is a straight slope without any curves. The upwardly inclined portion 85 forms an upward slope that slopes downstream toward the support height H1. The upwardly inclined portion 85 includes a curved portion 85a on the upstream side and a straight portion 85b that continues from the curved portion 85a to the downstream side. The curved portion 85a is a portion that extends from the lower end of the downwardly inclined portion 84 and is formed in an arc shape so that the slope smoothly transitions to an upward slope. The straight portion 85b is a straight inclined surface without any curves.

[0034] In the case of this embodiment, the regulating member 12 is a rotating member having the same form as the impeller 42 and is freely rotatable around the axis 12a in the Y direction. Note that the form of the regulating member 12 only needs to be able to contact the recording medium and prevent its lifting. In addition to the rotating member as in this embodiment, it may be a fixed member. However, by using a rotating member as in this embodiment, the conveyance of the recording medium with its lifting regulated can be continued more smoothly.

[0035] The regulating member 12 is disposed at a position facing the guide portion 81, and particularly, at a position facing the downward inclined portion 84. By disposing the regulating member 12 at such a position, when the leading end of the recording medium advances from the downward inclined portion 84 to the upward inclined portion 85 and the recording medium turns into a lifted state, the regulating member 12 can more reliably regulate the lifting of the recording medium. Further, the relationship among the support height H1 of the platen portion 80, the regulating position (regulating height) H2 of the regulating member 12, and the height H3 of the nip position of the discharge unit 4 is H1 < H2 < H3. Due to such a height relationship, the regulating member 12 can more reliably regulate the lifting of the recording medium.

[0036] A plurality of regulating members 12 are provided and are provided at positions corresponding to the ribs 8a and 8b in the Y direction. More specifically, each regulating member 12 is disposed so as to face either one of the ribs 8a and 8b. Thereby, the lifting of the recording medium can be regulated at an arbitrary portion in the width direction (Y direction) of the recording medium

[0037] FIGS. 6(A) to FIG. 7(B) are explanatory diagrams showing examples in which the lifting of the recording medium is regulated. Here, an example during the conveyance of the roll sheet SH2 will be described, but the same applies to the cut sheet SH1.

[0038] FIG. 6(A) shows a stage in which the leading end of the roll sheet SH2 is moving on the platen portion 80. In this stage, ink may be ejected from the recording head 6 to start recording. As the conveyance of the roll sheet SH2 proceeds, as shown in FIG. 6(B), the leading end of the roll sheet SH2 reaches the connecting portion 83 via the downward inclined portion 82.

[0039] By guiding the leading edge of the rolled sheet SH2 downward by the downward inclined portion 82, even if the rolled sheet SH2 is curled downward, it is possible to prevent the rolled sheet SH2 from floating up toward the recording head 6. In particular, because the downward inclined portion 82 has a relatively steep downward inclination, it is possible to reduce the floating of the rolled sheet SH2 even if the curl near the leading edge of the rolled sheet SH2 is strong.

[0040] As the rolled sheet SH2 continues to be conveyed, the leading edge of the rolled sheet SH2 reaches the downwardly inclined portion 84, as shown in FIG. 6C. The downwardly inclined portion 84 guides the leading edge of the rolled sheet SH2 downward, thereby maintaining a state in which the rolled sheet SH2 is kept from lifting up. If the downwardly inclined portion 84 is a flat surface similar to the connecting portion 83, the lifting of the rolled sheet SH2 may increase depending on the curl of the rolled sheet SH2. However, by guiding the leading edge of the rolled sheet SH2 with the relatively gentle downwardly inclined portion 84, the increase in the lifting of the rolled sheet SH2 is suppressed. The downwardly inclined portion 84 is the longest section in the X direction in the guide portion 81, and is longer than the individual sections of the downwardly inclined portion 82 and the connecting portion 83, or the combined sections of the downwardly inclined portion 82 and the connecting portion 83. The downwardly inclined portion 84 suppresses the increase in the lifting of the rolled sheet SH2 while ensuring the conveyance distance from the recording head 6 to the discharge unit 4.

[0041] As the transport of the rolled sheet SH2 progresses, the leading edge of the rolled sheet SH2 reaches the upwardly inclined portion 85, as shown in FIG. 7A. This causes the rolled sheet SH2 to lift up. However, as shown in FIG. 7A, the lifting of the rolled sheet SH2 is regulated by the regulating member 12, so that the rolled sheet SH2 can be regulated from lifting up directly below the recording head 6.

[0042] In this embodiment, the downwardly inclined portion 84 and the upwardly inclined portion 85 are connected to each other in order to control the position at which the lifting of the rolled sheet SH2 increases. That is, the downward inclination of the downwardly inclined portion 84 suppresses the increase in the lifting of the rolled sheet SH2, while the lifting increases rapidly in the upwardly inclined portion 85. In particular, the curved portion 85a is formed at the upstream end of the upwardly inclined portion 85, which causes the lifting of the rolled sheet SH2 to increase rapidly. However, the restricting member 12 can suppress the lifting of the rolled sheet SH2.

[0043] In this way, in this embodiment, the position where lifting of the rolled sheet SH2 occurs is structurally limited, while the lifting of the rolled sheet SH2 is restricted in accordance with this position by the restricting member 12. By preventing the position where lifting occurs from varying depending on the stiffness or degree of curl of the rolled sheet SH2, the position where lifting occurs can be controlled, and lifting can be effectively suppressed.

[0044] As the transport of the rolled sheet SH2 progresses, as shown in Figure 7(B), the leading edge of the rolled sheet SH2 reaches the nip portion of the discharge unit 4. Because the height H3 of the nip position of the discharge unit 4 is higher than the regulating position H2 of the regulating member 12, the regulating member 12 continuously regulates the lifting of the rolled sheet SH2.

[0045] In this way, in this embodiment, the position at which the recording medium lifts up can be controlled and the lifting can be suppressed. According to this embodiment, even if the platen unit 80 does not have a structure for sucking the recording medium, the lifting of the recording medium can be suppressed, and a low-cost, small-sized recording device 1 can be provided.

[0046] <Height adjustment structure for the regulation member> The structure for adjusting the height of the regulating member 12 will now be described. By adjusting the height of the regulating member 12, it is possible to more reliably prevent the recording medium from floating up. As shown in FIG. 4, the regulating member 12 is supported by the holding member 16 together with a spur 42. The spur 42 is rotatably supported by the holding member 16 via a spring shaft 42a, and is biased against the discharge roller 41 by the spring shaft 42a. The regulating member 12 is supported by the holding member 16 via the shaft 12a. A height adjustment member 18 is interposed between the holding member 16 and the base member 17, and the holding member 16 is supported by the base member 17 via the height adjustment member 18. The base member 17 is fixed to a frame (not shown) of the recording device 1. The height adjustment member 18 has a plate portion 180 on the YZ plane and a plate portion 181 on the XY plane that is bent from the plate portion 180, and has an L-shaped vertical cross section as a whole. The height adjustment member 18 can be made of an L-shaped sheet metal member and can be formed relatively thin. This prevents the recording device 1 from becoming larger. The base member 17 and the height adjustment member 18 are fixed to one plate portion 180 with screws 50, and the height adjustment member 18 and the holding member 16 are fixed to the other plate portion 181 with screws 51 via a spacer 19.

[0047] Further explanation will be given with reference to Figures 8 to 10. Figure 8 is a perspective view of an assembly of the holding member 16, base member 17, and height adjustment member 18, and Figure 9 is an exploded perspective view thereof. The spur 42 and the restricting member 12 are omitted from Figures 8 and 9. Figure 10 is an enlarged view of part P in Figure 8, showing the state in which the screw 50 has been removed.

[0048] The holding member 16, base member 17, and height adjustment member 18 are each elongated members extending in the Y direction. The base member 17 has fixing holes 17a formed at multiple locations in the Y direction, through which the threaded shafts of the screws 50 pass, and the height adjustment member 18 has threaded holes 18a formed at multiple locations in the Y direction, corresponding to the fixing holes 17a, into which the screws 50 threadably engage. The holding member 16 and the height adjustment member 18 are fixed by screws 51 at multiple locations in the Y direction.

[0049] The fixing holes 17a have a diameter larger than the screw shafts of the screws 50, and are sized so that the position through which the screw shafts pass can be changed up and down, as shown by arrow Z1 in Fig. 10. In other words, the relative fixing positions in the Z direction between each fixing hole 17a and the corresponding screw holes 18a can be adjusted. This makes it possible to adjust the position of the holding member 16 in the height direction relative to the base member 17. In other words, the height of the regulating member 12 can be adjusted.

[0050] When supporting a recording medium with a long width (Y direction), the holding member 16, base member 17, and height adjustment member 18 are lengthened in the Y direction according to the maximum size of recording medium that the recording device 1 can support. When these members are lengthened in the Y direction, the height of each regulating member 12 becomes unstable due to warping of the members. In this embodiment, by individually adjusting the relative position in the Z direction between each fixing hole 17a and the corresponding screw hole 18a, it is possible to adjust the warping in the Y direction of the height adjustment member 18 and holding member 16 and individually adjust the height of each regulating member 12.

[0051] In this embodiment, the bending strength in the Y direction of the holding member 16, the base member 17, and the height adjustment member 18 is in the following relationship: base member 17 > height adjustment member 18 > holding member 16. Therefore, the height adjustment member 18 is positioned relative to the base member 17 as shown by the dashed lines M1 and M2 in FIG. Warped It is possible to fix the holding member 16 in a state where it conforms to the warp of the height adjustment member 18, and it is also possible to fix the holding member 16 in a state where it conforms to the warp of the height adjustment member 18. In other words, by adjusting the warp of the height adjustment member 18, it is possible to eliminate variations in the height of the individual regulating members 12. In this way, it is possible to adjust the height of the regulating member 12 that prevents the recording medium from floating up.

[0052] <Margin control> When the leading edge of the rolled sheet SH2 is significantly curled, the leading edge margin of the rolled sheet SH2 may be controlled to more reliably prevent contact between the recording head 6 and the rolled sheet SH2. This will be described with reference to examples in Figures 6(A) and 6(B).

[0053] If the leading edge of rolled sheet SH2 is significantly curled, recording does not start when the leading edge of rolled sheet SH2 is positioned on platen unit 80, as in the state shown in Figure 6(A). Recording starts when the leading edge of rolled sheet SH2 reaches connection unit 83, as in the state shown in Figure 6(B). This more reliably prevents contact between the recording head 6 and rolled sheet SH2 during recording, even when the leading edge of rolled sheet SH2 is significantly curled.

[0054] The leading edge margin amount may be controlled based on information recognizable by the control unit 14, such as the type of recording medium, the recording mode, the ambient temperature and humidity of the location where the recording device 1 is installed, and the remaining amount of the roll sheet. For example, for a type of recording medium with a large curl, increasing the amount of margin allows recording to begin when the leading edge of the recording medium reaches a predetermined position in the X direction of the downwardly inclined portion 84. This more reliably prevents contact between the recording head 6 and the roll sheet SH2 during recording.

[0055] Similarly, if the environmental temperature and humidity are lower than the expected temperature and humidity, or if the remaining amount of roll sheet SH2 is small, the leading edge of the recording medium tends to curl more, so the margin may be increased before starting recording. Furthermore, if a recording mode in which recording is performed at a low speed is executed, the floating of the recording medium will have more time to grow, so the margin may be increased.

[0056] When the amount of margin at the leading edge of the recording medium is increased in this way, the cutting unit 5 may cut the leading edge of the recording medium taking into consideration the increased amount of margin.

[0057] <Other embodiments> The present invention can also be realized by supplying a program that realizes one or more functions of the above-described embodiments to a system or device via a network or a storage medium, and having one or more processors in the computer of the system or device read and execute the program. It can also be realized by a circuit (e.g., ASIC) that realizes one or more functions.

[0058] The invention is not limited to the above-described embodiments, and various changes and modifications can be made without departing from the spirit and scope of the invention. Accordingly, the following claims are appended to apprise the public of the scope of the invention. [Explanation of symbols]

[0059] 1 recording device, 3 transport unit, 4 discharge unit, 8 support member, 12 regulating member

Claims

1. a conveying means for conveying the recording medium in a conveying direction; a recording means for recording an image on the recording medium conveyed by the conveying means; a platen portion that faces the recording means and supports from below the recording medium that is conveyed by the conveying means; a regulating means disposed downstream of the recording means in the transport direction and configured to regulate the height of the recording medium from above the recording medium; a guide unit disposed downstream of the platen unit in the transport direction and configured to guide transport of the recording medium, The guide unit is a first downwardly inclined portion inclined from the platen portion toward a downstream side in the transport direction in a direction away from a support height of the recording medium on the platen portion; a second downward inclined portion disposed downstream of the first downward inclined portion in the conveying direction and inclined toward the downstream side in the conveying direction in a direction away from the support height; an upward inclined portion inclined from the second downward inclined portion toward the downstream side in the conveying direction in a direction approaching the support height, the second downwardly inclined portion has a gentler slope than the first downwardly inclined portion, The restricting means faces the guide portion. A recording device characterized by:

2. 2. The recording device according to claim 1, The restriction means is disposed at a position facing the second downwardly inclined portion. A recording device characterized by:

3. 3. The recording device according to claim 1, The restriction means is disposed at a position higher than the support height. A recording device characterized by:

4. 4. The recording apparatus according to claim 1, a discharge means disposed downstream of the recording means in the transport direction and configured to discharge the recording medium transported by the transport means; The discharge means is a first rotating body; a second rotating body facing the first rotating body, the recording medium is conveyed while being nipped between the first rotating body and the second rotating body; a nip position between the first rotating body and the second rotating body is located at a position higher than the support height; A recording device characterized by:

5. 4. The recording apparatus according to claim 1, a discharge means disposed downstream of the recording means in the transport direction and configured to discharge the recording medium transported by the transport means; The discharge means is a first rotating member; a second rotating member opposed to the first rotating member, the recording medium is conveyed while being nipped between the first rotating member and the second rotating member; a nip position between the first rotating member and the second rotating member is located at a position higher than a lift-up regulating position by the regulating means; A recording device characterized by:

6. 6. The recording apparatus according to claim 1, the upwardly inclined portion includes a portion extending in a curved manner from the second downwardly inclined portion, A recording device characterized by:

7. 2. The recording device according to claim 1, The restricting means is a rotatable member. A recording device characterized by:

8. 2. The recording device according to claim 1, the platen portion includes a plurality of ribs arranged in a direction intersecting the transport direction, The plurality of ribs extend in the conveying direction, The plurality of ribs include ribs of different heights. A recording device characterized by:

9. 9. The recording device according to claim 8, the regulating means is a plurality of rotating members provided in a direction intersecting the conveying direction in correspondence with the plurality of ribs; A recording device characterized by:

10. 2. The recording device according to claim 1, The guide unit is a connecting portion extending parallel to the support height and connecting the first downward inclined portion and the second downward inclined portion; A recording device characterized by:

11. 11. The recording device according to claim 10, a width of the second downwardly inclined portion in the conveyance direction is greater than a width of the connecting portion; A recording device characterized by:

12. 11. The recording device according to claim 10, a width of the second downward inclined portion in the conveyance direction is greater than a total width of the connecting portion and the first downward inclined portion; A recording device characterized by:

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