Transport device and recording device
The recording device enhances operability by integrating a movable sheet discharge and fixing unit, facilitating front-side access and reducing space requirements for roll sheet operations, thus improving usability and maintenance efficiency.
Patent Information
- Application Number
- JP2023210548
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-12-13
- Publication Date
- 2025-06-25
AI Technical Summary
Conventional recording devices require significant space for roll sheet replenishment and maintenance operations, with components arranged to surround the storage portion, affecting operability and usability.
The recording device integrates a movable sheet discharge unit and fixing unit that can approach or retract from the roll sheet, allowing front-side access for operations and reducing the device's size, with components arranged to minimize space requirements.
Improves operability by enabling front-side maintenance and reducing the device's size, allowing simultaneous access for roll sheet replenishment and recorded sheet recovery without increasing the apparatus' footprint.
Smart Images

Figure 2025094791000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a conveying device for conveying a sheet as a recording medium and a recording device for performing recording on the sheet.
Background Art
[0002] Conventionally, as a recording medium, a long sheet is stored in the form of a roll sheet wound, for example, in a roll shape, and a recording device (printer) that performs recording such as an image on a sheet portion pulled out from a roll portion in the roll sheet is known. Such a recording device conveys the sheet portion pulled out from the roll-shaped portion to a recording portion, and performs recording by discharging a recording liquid represented by ink onto the sheet portion in the recording portion. Depending on the type of ink, a fixing process for fixing the ink discharged onto the sheet to the sheet may be required, and there is also a recording device provided with a fixing device for drying the ink by wind or heat downstream of the recording portion. Furthermore, a recording device provided with a cutting device for cutting the sheet after recording at a predetermined position is also known (Patent Document 1).
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] In the above-described recording apparatus, a configuration unit that performs various processes such as recording, fixing, and cutting on the sheet portion drawn out from the roll portion of the roll sheet may adopt a layout in which the configuration unit is arranged so as to surround the storage portion of the roll sheet from the viewpoints of reducing the size of the apparatus and saving space. That is, a conveyance path of the sheet portion is formed so as to surround the periphery of the storage portion (roll portion of the roll sheet), and a recording unit, a fixing unit, a cutting unit, etc. are sequentially arranged along the conveyance path. On the other hand, when the roll sheet is used up, it is necessary to replenish a new roll sheet into the storage portion, and it is necessary to provide a certain space around the storage portion for such replenishment work.
[0005] Further, in the recording apparatus described in Patent Document 1, a roll sheet (paper feed roll) for supplying a sheet is set on the back side of the recording apparatus main body, and a roll sheet (take-up roll) for collecting the sheet is set on the front side of the recording apparatus main body. It is preferable that various operations on the recording apparatus, the collection of the recorded sheet (take-up roll), and the replenishment work of the roll sheet (paper feed roll) can be performed by the user at the same standing position with respect to the apparatus from the viewpoint of operability.
[0006] An object of the present invention is to provide a technique capable of improving operability in a conveyance device and a recording device.
Means for Solving the Problems
[0007] To achieve the above object, the conveyance device of the present invention includes a holding portion that holds a roll sheet, a conveyance portion that conveys a sheet drawn out from the roll sheet held by the holding portion, a guide portion that guides the sheet conveyed by the conveyance portion along a conveyance path, a cutting portion that cuts the sheet downstream of the guide portion in the conveyance path, and is provided with the guide portion and the cutting portion are integrally movable to a first position approaching the roll sheet held by the holding portion and a second position away from the roll sheet held by the holding portion It is characterized by being configured as follows. To achieve the above object, the recording apparatus of the present invention comprises the conveying device of the present invention, and a recording unit that performs recording on the sheet between the holding unit and the guide unit in the conveying path, and is characterized by including the above.
Advantages of the Invention
[0008] According to the present invention, in the conveying device and the recording apparatus, the operability can be improved.
Brief Description of the Drawings
[0009]
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
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Figure 10
Figure 11
Embodiments for Carrying Out the Invention
[0010] Hereinafter, with reference to the drawings, embodiments for carrying out the present invention will be illustratively and specifically described based on examples. However, dimensions, materials, shapes, relative arrangements, etc. of the components described in this embodiment should be appropriately changed according to the configuration of the apparatus to which the invention is applied and various conditions. That is, the scope of the present invention is not intended to be limited to the following embodiments.
[0011] (First Embodiment) FIGS. 1(a) and 1(b) are schematic perspective views of a recording apparatus 100 according to the first embodiment of the present invention. FIG. 1(a) is a schematic perspective view of the recording apparatus 100 with the sheet discharge unit 500 and the fixing heater 90 closed. FIG. 1(b) shows a schematic perspective view of the recording apparatus 100 with the sheet discharge unit 500 and the fixing heater 90 open when setting the roll sheet R.
[0012] The recording apparatus 100 according to this embodiment is a printer that uses a sheet wound in a roll as a recording medium (recording material) and pulls out the sheet from the roll part for recording. Also, as an example of the recording method, the recording apparatus 100 according to this embodiment is a recording apparatus (so-called inkjet printer) that forms (records) a desired recording image (characters, pictures, etc.) on the recording medium by a liquid discharge method of discharging ink as a recording liquid onto the recording medium.
[0013] Further, the recording apparatus 100 according to this embodiment is configured to enable full-front operation. That is, in the specific side (front side) of the recording apparatus 100 facing the user, the operation panel 28 is arranged, and various operations of the recording apparatus 100 and maintenance work such as replenishment of the roll sheet R can be performed.
[0014] Here, a spool member 2 for holding the roll sheet R (see FIGS. 2(a), 2(b), etc.) The direction in which the rotation axis extends is defined as the X direction, the horizontal direction orthogonal to the X direction is defined as the Y direction, and the vertical direction (gravity direction) orthogonal to the X direction and the Y direction is defined as the Z direction. One side in the Y direction is the front side of the recording apparatus 100, and the other side is the back side of the recording apparatus 100. Note that the definition of this coordinate system is based on the premise that the recording apparatus 100 is set on a horizontal plane in its normally assumed installation state.
[0015] The supply device 200 can selectively set an outer wound roll sheet R1 and an inner wound roll sheet R2 as the roll sheet R. The outer wound roll sheet R1 is a roll sheet R wound such that the outer peripheral side (outer side) surface of the roll portion is the print surface P (surface to be recorded). The inner wound roll sheet R2 is a roll sheet R wound such that the inner peripheral side (inner side) surface of the roll portion is the print surface P. An image is printed on the sheet 1, which is a sheet portion selectively pulled out from the roll portion in the roll sheet R. The user can input various commands for the recording apparatus 100, such as specifying the size of the sheet 1 and switching between online / offline, by using various switches provided on the operation panel 28.
[0016] Although details will be described later, the recording apparatus 100 according to the present embodiment is configured such that the sheet discharge unit 500 (see FIGS. 2(a), 2(b), etc.) is movable between a shielding position (FIG. 1(a)) that covers the roll sheet R and a release position (FIG. 1(b)) that exposes the roll sheet R. The former shielding position is the position (first position) taken by the sheet discharge unit 500 when the recording apparatus 100 performs a recording operation, and is a position where the sheet discharge unit 500 approaches the roll sheet R. The latter release position is a position where the sheet discharge unit 500 is separated from the roll sheet R. The release position is the position (second position) that the sheet discharge unit 500 can take during a non-recording operation when the recording apparatus 100 does not perform a recording operation, and is the position taken by the sheet discharge unit 500 during maintenance such as replenishment of the roll sheet R and sheet jam processing.
[0017] Similarly, although details will be described later, the recording apparatus 100 according to the present embodiment is configured such that the fixing heater 90 (see FIGS. 2(a) and 2(b) etc.) is movable between a fixing position (FIG. 1(a)) that covers the sheet discharge unit 500 and a retracted position (FIG. 1(b)). The former fixing position is a position where the fixing heater 90 faces the sheet discharge unit 500. The fixing position is the position (third position) that the fixing heater 90 as a fixing unit takes with respect to the sheet discharge unit 500 when the recording apparatus 100 performs a recording operation, and is a position where fixing processing is performed on the portion of the sheet 1 that is conveyed through the sheet discharge unit 500. The latter retracted position is the position (fourth position) that the fixing heater 90 can take during a non-recording operation of the recording apparatus 100, and is a position where the fixing heater 90 is separated from the sheet discharge unit 500 to enable the sheet discharge unit 500 to take the above-described released position.
[0018] FIGS. 2(a) and 2(b) are schematic cross-sectional views of the main part of the recording apparatus 100. FIG. 2(a) is a schematic cross-sectional view showing the state during sheet conveyance when the outer wound roll sheet R1 is set. FIG. 2(b) is a schematic cross-sectional view showing the state during sheet conveyance when the inner wound roll sheet R2 is set.
[0019] As shown in FIGS. 2(a) and 2(b), the recording apparatus 100 includes a supply device 200, a sheet conveyance unit 300, a recording unit 400, a sheet discharge unit 500, and a winding unit 600. In the recording apparatus 100 according to the present embodiment, the components mainly related to sheet conveyance correspond to the conveyance device of the present invention.
[0020] The supply device 200 holds the roll sheet R as a holding unit and supplies the sheet 1, which is a sheet portion pulled out from the roll portion in the roll sheet R, to the conveyance path. The sheet conveyance unit 300 forms a conveyance path for the sheet 1 from the supply device 200 to the recording unit 400 and conveys the sheet 1 along the conveyance path by conveyance rollers arranged on the conveyance path. It provides a conveying force for movement. The recording unit 400 performs recording on the sheet 1 by discharging ink onto the recording surface of the sheet 1 in the portion conveyed by the sheet conveying unit 300 on the sheet 1. The sheet discharging unit 500 is a guiding unit that guides the portion (recorded portion) of the sheet 1 where recording by the recording unit 400 has been performed along the conveying path. The winding unit 600 winds up the portion of the sheet 1 guided by the sheet discharging unit 500.
[0021] The sheet discharging unit 500 is provided with a fixing heater 90. The fixing heater 90 is configured as a heating type fixing unit to perform a fixing process of drying the ink by blowing hot air onto the portion of the sheet 1 passing through the sheet discharging unit 500. Note that as the fixing unit, it may be configured to perform fixing by using an ink having a property of curing in response to UV light (ultraviolet rays) as the recording liquid and irradiating the UV light to cure the ink.
[0022] Between the sheet discharging unit 500 and the winding unit 600 in the conveying path of the sheet 1, a cutting device 20 as a cutting unit is arranged. The cutting device 20 separates a predetermined length region including the portion (recorded portion) of the sheet 1 wound by the winding unit 600 from the remaining portion connected to the roll portion of the sheet 1, so that it can be recovered as the output of the recording device 100.
[0023] As a configuration for recovering the recorded sheet 1, it is not limited to the configuration of winding the sheet 1 as in the present embodiment. For example, it may be configured to receive and hold the sheet 1 separated and dropped by the cutting device 20 by a basket or the like.
[0024] Each unit such as the sheet conveying unit 300, the recording unit 400, the sheet discharging unit 500, and the winding unit 600 is arranged so as to surround the supply device 200. That is, the conveying path of the sheet 1, which is the sheet portion drawn from the roll portion in the roll sheet R, is a path that sequentially passes through each unit such as the sheet conveying unit 300, the recording unit 400, the sheet discharging unit 500, and the winding unit 600 so as to go around the supply device 200.
[0025] Hereinafter, the details of each part of the recording apparatus 100 will be described.
[0026] FIG. 2(a) shows the state during sheet conveyance when the outer wound roll sheet R1 is set. In a supply device 200 provided below the recording apparatus 100 in the vertical direction, two sheet supply parts 60a and 60b corresponding to the respective roll sheets R1 and R2 are arranged. Below the outer wound roll sheet R1 in the vertical direction, a swing member 7 including two rollers and an outer winding arm member 4 are integrally formed, and are configured to be rotatable about an outer winding arm rotation shaft 5. The outer winding arm spring member 3 is arranged so as to press the outer winding arm member 4 and the swing member 7 in an integrated configuration in the direction toward the center of the roll paper, and is configured to always press the two rollers of the swing member 7 against the roll sheet R1. With the integrated configuration of the outer winding arm member 4 and the swing member 7 pressed against the roll sheet R1, the set roll sheet R1 is rotated in the C1 direction by a roll sheet drive not shown in the figure. Thereby, a frictional force is generated between the roller of the swing member 7 and the roll sheet R1, and the sheet 1 pulled out from the roll sheet R1 can be conveyed to the conveyance roller 14 through a conveyance path formed by the outer winding conveyance guide 12 of the sheet conveyance unit 300. An outer winding sheet detection sensor 6 is provided on the outer winding conveyance guide 12.
[0027] The outer winding separation flapper 10 is configured between the roll sheet R1 and the upper part of the paper feed port of the outer winding sheet supply part 60, and is configured to always press against the roll sheet R1 by its own weight. By the action of the outer winding separation flapper 10, when the roll sheet R1 rotates, the leading end of the sheet 1 is separated from the roll part of the roll sheet R1, and it is possible to easily feed the paper to the paper feed port of the outer winding sheet supply part 60a.
[0028] FIG. 2(b) shows the state during sheet conveyance when the inner wound roll sheet R2 is set.
[0029] Unlike the outer wound roll sheet R1, the inner wound roll sheet R2 is configured such that it cannot automatically convey the leading edge of the sheet 1 to the conveying roller 14 in the conveying path of the sheet conveying unit 300. Therefore, the user needs to manually convey the leading edge of the sheet 1.
[0030] The user separates the leading edge of the sheet 1 from the roll portion of the roll sheet R2 and places it on the inner wound manual supply guide 69. Then, by manually sending the sheet 1 downstream in the conveying direction on the inner wound manual supply guide 69, the leading edge of the sheet 1 drawn from the roll sheet R2 reaches the conveying roller 14 through the conveying path of the sheet conveying unit 300. An inner wound sheet detection sensor 67 is provided in the conveying path of the sheet 1 drawn from the inner wound roll sheet R2.
[0031] When the sheet 1 drawn from the outer wound roll sheet R1 and the inner wound roll sheet R2 is detected as paper ON by the second sheet sensor 16, the conveying roller 14 starts to rotate in the feeding direction, and thus it is possible to draw the sheet into the downstream side of the sheet conveying unit 300. Thereafter, the sheet 1 is conveyed to the recording unit 400.
[0032] The recording unit 400 includes an inkjet print head 18 (hereinafter referred to as the recording head 18), and can print (record) an image on the sheet 1 by discharging ink as a recording liquid from the recording head 18. The recording head 18 includes a discharge energy generating element such as an electrothermal conversion element (heater) or a piezo element. The recording head 18 is configured to be able to discharge ink from the discharge port using the energy generated by the discharge energy generating element. When an electrothermal conversion element is used, the ink is foamed by its heat generation, and the ink can be discharged from the discharge port using the foaming energy.
[0033] The recording head 18 is not limited to only the inkjet method, and the printing method of the recording unit 400 is also not limited. For example, it may be a serial scan method or a full line method. In the case of the serial scan method, an image is printed while accompanying the conveyance operation of the sheet 1 and the scanning of the recording head 18 in a direction intersecting the conveyance direction of the sheet 1. In the case of the full line method, a long recording head 18 extending in a direction intersecting the conveyance direction of the sheet 1 is used, and an image is printed while continuously conveying the sheet 1.
[0034] The fixing heater 90 provided above the sheet discharge unit 500 can apply warm air to the sheet 1 drawn out from the recording unit 400 and supported by the paper discharge guide 71, and fix the ejected ink to the sheet 1 as a recording medium. Fixing heater landing members 91 are attached to four corners of the surface from which the warm air of the fixing heater 90 emerges, and are configured to land on the paper passing surface of the paper discharge guide 71. Thereby, a gap is formed between the surface from which the warm air of the fixing heater 90 emerges and the sheet conveyance surface of the paper discharge guide 71. The fixing heater 90 is attached to the apparatus main body of the recording apparatus 100 via a link mechanism, and is configured to be able to retract to the upper part of the apparatus main body of the recording apparatus 100.
[0035] Here, the fixing heater 90 is a component having a function of drying and fixing the ink ejected onto the sheet 1 to the sheet 1 by heat or wind. Therefore, for example, in a recording apparatus that uses an ink with fast fixing after ejection, such as aqueous ink, as a recording liquid, the fixing heater 90 may not be provided.
[0036] The paper discharge guide 71 provided in the sheet discharge unit 500 is a guide member that forms the conveyance surface of the sheet 1 drawn out from the recording unit 400, and supports the back surface (non-recording surface) of the sheet 1 while guiding the discharge of the sheet 1 to the outside of the recording apparatus 100. The paper discharge guide 71 is configured to integrally include a cutting device 20 and a downstream R portion 73 of the paper discharge guide on the downstream side in the sheet conveyance path, and can cut the roll sheet R for which fixing has been completed.
[0037] FIG. 3 is a schematic cross-sectional view when the sheet discharge unit 500 moves so that the roll sheet R (supply device 200) is exposed outside the recording device 100. The sheet discharge unit 500 is configured to be rotatable about the paper discharge guide rotation shaft 72. The fixing heater 90 is configured to be movable up and down with respect to the apparatus main body by a link mechanism, and can be retracted to the outside of the movable regions of the sheet discharge unit 500 and the cutting device 20.
[0038] Here, in the case where the sheet discharge unit 500 is fixed to the apparatus main body, for access to the roll sheet R, for example, a space may be provided below the sheet discharge unit 500, or access may be enabled from the back side of the apparatus on the opposite side of the sheet discharge unit 500. In the former case, it is necessary to separately arrange the roll sheet (paper feed roll) and the recorded sheet (take-up roll) so that they can be individually accessed below the sheet discharge unit 500, and the apparatus size may increase particularly in the height direction. In the latter case, the replenishment operation of the roll sheet (paper feed roll) and the recovery of the recorded sheet (take-up roll) are performed on different sides with respect to the apparatus main body, and there is a concern about a decrease in the operability of the apparatus.
[0039] The recording device 100 of the present embodiment is a printer in which the supply device 200 and the take-up unit 600 can be accessed from the front side of the recording device 100 (that is, front operation is possible) by the retraction operations of the sheet discharge unit 500 and the cutting device 20 described above. That is, by rotating and retracting the sheet discharge unit 500, it is possible to secure a space for setting the paper feed roll sheet R below the sheet discharge unit 500 in the retracted position (the position where the sheet discharge unit 500 originally was). Therefore, it is possible to adopt a layout in which the supply device 200 and the sheet discharge unit 500 are arranged at substantially the same height, and the main body size of the recording device 100 can be reduced. Furthermore, the replenishment operation of the roll sheet (paper feed roll) and the recovery of the recorded sheet (take-up roll) can be performed on the same side with respect to the apparatus main body, and the operability of the apparatus can be improved.
[0040] Here, in this embodiment, as the configuration of the drive mechanism for retracting the sheet discharge unit 500, the configuration that rotates about the center of the paper discharge guide rotation shaft 72 has been described. However, the configuration is not limited to rotation, and a configuration that moves up and down along a linear movement path using a link mechanism or the like may also be used.
[0041] With reference to FIGS. 4, 5(a), and 5(b), the detailed configuration around the sheet discharge unit 500 and the cutting device 20 will be described. FIG. 4 is a schematic perspective view of the sheet discharge unit 500. FIG. 5(a) is a schematic cross-sectional view of the sheet discharge unit 500 (cross-sectional view taken along line P in FIG. 4). FIG. 5(b) is a schematic cross-sectional view for explaining the configuration of the fixed portion of the paper discharge guide 71 and the fixed member 74.
[0042] The sheet discharge unit 500 has a role of supporting the back surface of the sheet 1 drawn out from the recording unit 400 and guiding the sheet 1 so that the sheet 1 is discharged to the outside of the recording apparatus 100. The outer shape of the sheet discharge unit 500 is composed of a paper discharge guide 71 that supports the back surface of the sheet 1 and a paper discharge guide base 75 connected to the paper discharge guide 71. The paper discharge guide base 75 as a base member is disposed on the side opposite to the conveyance path of the sheet 1 with respect to the paper discharge guide 71. The paper discharge guide 71 and the paper discharge guide base 75 are connected to each other so as to integrally form a box shape, ensuring the overall rigidity of the sheet discharge unit 500.
[0043] The paper discharge guide 71 is configured to be heated directly by the warm air from the fixing heater 90 or through the sheet 1, and also has a function of warming the sheet 1 from the back surface during fixing drying to promote fixing drying. Therefore, the paper discharge guide 71 is required to have heat resistance and high thermal conductivity so that temperature unevenness does not occur, and materials such as steel plates, SUS materials, and aluminum plates are used. In the following description, the case where a plate-shaped metal is used will be assumed for explanation. However, when using an ink that is fixed and dried immediately after ejection, such as water-based ink, the fixing heater 90 is not required, so there is no need to increase the thermal conductivity, and it may be composed of resin or the like.
[0044] The paper discharge guide 71 and the paper discharge guide base 75 are connected by a paper discharge guide fixing member 74 (hereinafter referred to as the fixing member 74). The fixing member 74 has a hook claw shape formed on one side in the direction perpendicular to the sheet support surface of the paper discharge guide 71, and is fixed by being hooked on the paper discharge guide base 75. A screw hole is formed on the other side of the fixing member 74 in the vertical direction, and it is fixed to the paper discharge guide 71 by screw fixation.
[0045] The paper discharge guide 71 is provided with a constriction shape that is recessed from the support surface of the sheet 1, and the constriction shape and the position of the fixing member 74 are made to coincide, so that when screw-fixed, the screw head is within the depth of the constriction shape and does not protrude from the sheet support surface. This makes the fixing member 74 not affect the paper passing property of the sheet 1. Here, it is still better to arrange the constriction shape so as not to coincide with the end of the standard size sheet width, as this reduces the risk of the tip or end of the sheet 1 getting caught.
[0046] Also, the space between the paper discharge guide 71 and the paper discharge guide base 75 is filled with a heat insulating material 76. This makes the structure such that heat is less likely to be transmitted from the paper discharge guide 71 to the paper discharge guide base 75.
[0047] As shown in FIG. 5(b), the paper discharge guide 71 and the fixing member 74 are fixed by a step screw 81. The step screw 81 has a screw portion 811, a shaft portion 812, and a head portion 813. The screw portion 811 is configured to be screw-engageable with the screw hole 741 of the fixing member 74. The shaft portion 812 has a larger diameter than the screw portion 811, protrudes from the head portion 813, and the screw portion 811 is coaxially provided on the tip side thereof. The head portion 813 is a flange-shaped portion having a larger diameter than the shaft portion 812. In this embodiment, the head portion 813 is configured as a so-called truss head or round cap head. The step screw 81 is inserted into the fixing hole 711 of the paper discharge guide 71 with the screw portion 811 and the shaft portion 812 in the direction perpendicular to the sheet support surface of the paper discharge guide 71, and the screw portion 811 is screwed into the screw hole 741 of the fixing member 74, thereby fixing the paper discharge guide 71 to the fixing member 74.
[0048] The shaft portion 812 serves as a first restricting portion that restricts the range within which the paper discharge guide 71 and the fixing member 74 can relatively move in a direction parallel to the sheet support surface of the paper discharge guide 71. The shaft portion 812 is configured to have a smaller diameter with respect to the fixing hole 711 such that a gap G1 of a size allowing the paper discharge guide 71 to slide (relatively move with respect to the fixing member 74) by approximately 1 mm in a direction parallel to the sheet support surface of the paper discharge guide 71 is formed with respect to the fixing hole 711.
[0049] The head portion 813 has a restricting surface 814 facing the fixing member 74 and the paper discharge guide 71 so as to sandwich the paper discharge guide 71 between it and the fixing member 74 in a direction perpendicular to the sheet support surface of the paper discharge guide 71. The restricting surface 814 serves as a second restricting portion that restricts the range within which the paper discharge guide 71 and the fixing member 74 can relatively move in a direction perpendicular to the sheet support surface of the paper discharge guide 71. The restricting surface 814 is configured such that a gap G2 of a size allowing the paper discharge guide 71 to slide (relatively move with respect to the fixing member 74) by approximately 0.1 mm in a direction perpendicular to the sheet support surface (not completely fixing it) is formed.
[0050] With the fixing by the screw 81 as described above, the paper discharge guide 71 and the fixing member 74 are not completely fixed and are configured to have a minute gap in a direction perpendicular to the sheet support surface. As a result, when the paper discharge guide 71 is heated by the fixing heater 90 and thermal expansion occurs in a direction parallel to the sheet support surface of the paper discharge guide 71, the paper discharge guide 71 slides with respect to the fixing member 74, thereby absorbing the positional displacement of the fixed portion due to thermal expansion. By this sliding movement of the paper discharge guide 71, deformation in a direction perpendicular to the sheet support surface of the paper discharge guide 71 can be suppressed. Even when thermal expansion occurs in a direction parallel to the sheet support surface, the paper discharge guide 71 slides with respect to the fixing member 74, thereby absorbing the positional displacement of the fixed portion due to thermal expansion. By this sliding movement of the paper discharge guide 71, deformation in a direction perpendicular to the sheet support surface of the paper discharge guide 71 can be suppressed.
[0051] In the above-described fixing configuration using the step screws, the variation in the gap between the sheet conveyance surface where the hot air of the paper discharge guide 71 and the fixing heater 90 emerges may increase significantly due to component tolerances. The gap greatly affects the fixing performance. If it is too large, heat transfer becomes difficult and insufficient fixing occurs. If it is too small, unevenness such as wind marks may occur due to the hot air. Therefore, when high accuracy is required for the gap dimension, the sheet conveyance surfaces of the paper discharge guide 71 and the fixing heater 90 may be configured to be assembled after adjusting the flatness for each unit.
[0052] The heat of the paper discharge guide 71 heated by the fixing process is configured such that the heat does not transfer to the paper discharge guide base 75 by the heat insulating material 76 sandwiched between the paper discharge guide 71 and the paper discharge guide base 75. Further, by suppressing the heat transfer from the paper discharge guide 71 to other places, the heat in the gap space between the fixing heater 90 and the paper discharge guide 71 is less likely to cool down, so it is possible to maintain the fixing performance with power saving.
[0053] The cutting device 20 is attached to the discharge guide base 75 with screws or the like downstream of the discharge guide 71 in the sheet conveyance path. The detailed configuration of the cutting device 20 will be described later. In the first embodiment, the cutting device 20 is configured to cut the sheet 1 by moving the cutter unit 43 in the sheet width direction (X direction) orthogonal to the sheet conveyance direction CD. Therefore, in the region through which the cutter unit 43 passes, the sheet conveyance path is configured such that a groove recessed from the sheet conveyance surface is formed, and there is a concern that it may affect the conveyance property of the sheet 1. Therefore, in the present embodiment, a configuration is adopted in which a bent portion with an oblique inclination (inclined path 74a) is added on the downstream side of the cutting device 20 at the downstream end of the discharge guide base 75. The discharge guide base 75 has a recess 75a at the downstream end in the conveyance path, where the cutting device 20 is mounted. The recess 75a is shaped to be recessed from the sheet conveyance surface formed by the discharge guide 71. The inclined path 74a is provided at the downstream end of the conveyance path of the recess 75a, and forms an inclined surface that gradually increases in height from the height of the bottom of the recess 75a to the same height as the sheet conveyance surface of the discharge guide 71 as it extends from the upstream to the downstream of the conveyance path. By providing such an inclined path 74a, even if the leading end of the sheet 1 falls into the groove-shaped portion described above when the sheet 1 is being conveyed, the sheet 1 is configured to be conveyed further downstream without the leading end of the sheet 1 being caught.
[0054] Downstream of the inclined path 74a, a discharge guide downstream R portion 73 is provided as a downstream guide portion. The discharge guide downstream R portion 73 is a portion that positively contacts the sheet 1 when the sheet 1 with the fixing completed is wound around the winding portion 600. The discharge guide downstream R portion 73 guides the sheet 1 while contacting the sheet 1 so as to apply tension to the sheet 1 between the sheet discharge portion 500 (discharge guide 71) and the winding portion 600 in the conveyance path of the sheet 1.
[0055] The downstream R part 73 of the paper discharge guide is configured to have a cross-sectional shape including an R shape (arc shape) in a cross-section perpendicular to the width direction of the sheet 1 intersecting the conveyance direction CD of the sheet 1. If this part had, for example, a cross-sectional angular shape, folds or wrinkles might occur in the fixed sheet 1. By making the downstream R part 73 of the paper discharge guide have an arc-shaped cross-section as in this embodiment, damage to the sheet 1 can be reduced.
[0056] Similarly, since the upstream main body R part 78a and the upstream R part 78b of the paper discharge guide are also located between the platen 17 and the paper discharge guide 71 and are places where the sheet 1 actively contacts, it is better for their cross-sections to be arc-shaped rather than angular. Also, the upstream main body R part 78a and the upstream R part 78b of the paper discharge guide are coaxially arranged with the rotation axis of the paper discharge guide rotation axis 72 as their respective rotation centers, and it is desirable that the R dimensions (curvature radii of the arc-shaped parts) also match. The upstream main body R part 78a of the paper discharge guide is attached to the apparatus main body of the recording apparatus 100 and is arranged so as not to interfere when the sheet discharge part 500 rotates. On the other hand, the upstream R part 78b of the paper discharge guide has a configuration integrated with the sheet discharge part 500 and rotates integrally with the sheet discharge part 500 when the sheet discharge part 500 rotates. With this configuration, when the sheet discharge part 500 is opened to set the roll sheet R to the main body, a gap is formed between the paper discharge guide 71 and the upstream main body R part 78a of the paper discharge guide, and it becomes possible to view the platen 17 from the front of the recording apparatus 100. As described above, when feeding the inner wound roll sheet R2, the sheet 1 is manually fed, so it is necessary to confirm whether the leading end of the sheet 1 has reached the conveyance roller 14. By providing this gap, the paper feeding setability is improved.
[0057]
[0058] The sheet discharge unit 500 can rotate about the paper discharge guide rotation shaft 72 as the rotation center, and is rotated when setting the roll sheet R to the apparatus main body of the recording apparatus 100. The paper discharge guide rotation shaft 72 is attached to the main body side plate 70 of the recording apparatus 100, and a member with low sliding resistance such as a bearing is used for the rotating part. Gas springs 77 are attached to the lower left and right sides of the sheet discharge unit 500. One end of each gas spring 77 is fixed to the downstream back side of the sheet discharge unit 500, and the other end is fixed to the main body side plate 70. The gas springs 77 can expand and contract, and are structured to always have a force applied in the extending direction. Therefore, by attaching as shown in FIGS. 4 and 5, the component force of the force in the extending direction of the gas springs 77 acts in the direction to open the sheet discharge unit 500, and it is possible to open the sheet discharge unit 500 with a light force.
[0059] The reaction force setting of the gas springs 77 will be described. When setting the roll sheet R to the apparatus main body of the recording apparatus 100, the sheet discharge unit 500 needs to be held in an open state. Therefore, the magnitude of the reaction force of the gas springs 77 is set to be greater than the force with which the sheet discharge unit 500 closes due to its own weight. However, on the other hand, if priority is given to the reaction force for holding the open state, it may be difficult for the sheet discharge unit 500 to maintain the closed state and it may open automatically. Therefore, a holding member 79 is attached to the paper discharge guide base 75, and a landing part 80 formed by bending is configured on the main body side plate 70 located on the opposite side when the sheet discharge unit 500 is closed. Here, the holding member 79 is configured by a magnet and is adsorbed to the main body side plate 70 by magnetic force. The magnitude of the magnetic force of the magnet of the holding member 79 is set to be a holding force greater than the force with which the gas springs 77 try to open. Thereby, it becomes possible to hold the sheet discharge unit 500 in a closed state.
[0060] Here, depending on the configuration of the sheet discharge unit 500 and the recording apparatus 100, there may be no concern that, as described above, it is difficult to hold the sheet discharge unit 500 in a closed state and it may automatically open. That is, depending on the weight, the center of gravity position, and the arrangement of the gas spring 77 of the sheet discharge unit 500, it is also possible to hold the open state by the gas spring 77 and hold the closed state by the self-weight of the sheet discharge unit 500. In addition, although the configuration in which the gas spring 77 is attached has been described assuming a large-sized printer apparatus, for example, in the case of a recording apparatus corresponding only to a small sheet width, since the weight of the sheet discharge unit 500 is light, if it is not necessary, the gas spring 77 may not be provided.
[0061] With reference to FIGS. 6, 7, and 8, the details of the cutting device 20 in the present embodiment will be described.
[0062] The cutting device 20 includes a cutter rail 40, a cutter belt 41, a cutter carriage 42, and a cutter unit 43. The cutter rail 40 is configured to guide the cutter carriage 42 in the width direction of the sheet 1 orthogonal to the conveyance direction CD of the sheet 1. The cutter carriage 42 is integrally coupled with the cutter unit 43 and the cutter belt 41, respectively. Near one end of the cutter rail 40 in the sheet width direction, a cutter motor 44 and a motor pulley 45 are provided, and on the other end side, a tensioner pulley 46 and a tensioner spring 47 are provided. The cutter belt 41 is stretched between the motor pulley 45 and the tensioner pulley 46, and the tensioner pulley 46 is urged in the direction X2 by the tensioner spring 47 to obtain tension, thereby preventing the teeth of the cutter belt 41 from skipping. The cutting device 20 is fixed to the paper discharge guide base 75 by the cutter rail 40, and the cutting device 20 can be removed from the paper discharge guide base 75 and replaced by removing the screws.
[0063] The cutter unit 43 has, as a cutting member, an upper movable blade 48 as an upper blade and a lower movable blade 49 as a lower blade, which are arranged in a direction perpendicular to the surface of the sheet 1. The upper movable blade 48 and the lower movable blade 49 have a contact portion, and are configured to cut the sheet 1 at the contact portion by moving along the guide rail substantially along the width direction of the sheet while sandwiching the sheet 1 at the contact portion. Specifically, the upper movable blade 48 and the lower movable blade 49 are arranged so as to contact each other forming a predetermined angle θ (intersection angle) with respect to the direction X1 which is the cutting direction, and the sheet 1 is cut by the contact portion of the upper movable blade 48 and the lower movable blade 49.
[0064] The cutter carriage 42 is driven by a driving force transmitted from the cutter motor 44 via the cutter belt 41, and is reciprocally movable in the directions X1 and X2 along the cutter rail 40. Since the cutter unit 43 is coupled to the cutter carriage 42, it is reciprocally movable in the directions X1 and X2 in the same manner as the cutter carriage 42.
[0065] Further, the lower movable blade 49 is configured to be rotationally drivable from the cutter motor 44 via the cutter belt 41 and the cutter carriage 42. Thereby, at the time of cutting the sheet 1, both the lower movable blade 49 and the upper movable blade 48 in contact with the lower movable blade 49 cut the sheet 1 while rotating.
[0066] During the image recording of the sheet 1, the cutter unit 43 waits at a standby position P1 escaped from the paper end 1a on the home position side of the sheet 1. At the time of cutting the sheet 1, the cutter unit 43 moves from the standby position P1 in the direction X1 which is the cutting direction to a position where the contact portion of the upper movable blade 48 and the lower movable blade 49 passes beyond the paper end 1c on the side opposite to the home position to cut the sheet 1. After cutting the sheet 1, it reverses at the inversion position P2 corresponding to the width of the sheet 1, and moves in the direction X2 which is the return direction not contributing to the cutting operation, thereby moving to the position of the standby position P1 for the next cutting operation and waiting.
[0067] The cutter motor 44 has an encoder and can control the moving positions of the cutter unit 43 in directions X1 and X2. Since the relationship between the number of pulses of the encoder and the moving amount of the cutter unit 43 is known in advance, the moving amount of the cutter unit 43 can be known by counting the number of pulses of the encoder. Near the standby position P1, a standby position sensor 51 is provided on a part of the fixed sensor holder 50, and the sensor flag portion 20a arranged on the cutter unit 43 is detected by the standby position sensor 51 to accurately stop the cutter unit 43 at the standby position P1. Also, it is possible to detect the presence or absence of the cutter unit 43 at the standby position P1.
[0068] Referring to FIG. 9, the control configuration of the recording apparatus 100 according to the present embodiment will be described. FIG. 9 is a block diagram for explaining the control configuration in the present embodiment.
[0069] The control unit 700 includes a CPU, a ROM, a RAM, a motor driver, etc. (not shown), and is composed of a main control unit 710, a conveyance control unit 720, a recording control unit 730, and a fixing control unit 740. The main control unit 710 gives commands to the conveyance control unit 720, the recording control unit 730, and the fixing control unit 740. The conveyance control unit 720 drives the conveyance motor to convey the sheet 1 to an arbitrary position while checking the position of the sheet 1 with a paper end sensor (not shown) based on the judgment of the main control unit 710, and drives the cutter motor 44 to cut the sheet 1. The recording control unit 730 forms a recording image at an appropriate position using the cooperation of a carriage motor (not shown) and the recording head 18. The fixing control unit 740 adjusts the air volume of a fan (not shown) built in the fixing heater 90 and the temperature of the heater according to a control program stored in the ROM to fix the ink.
[0070] (Second Embodiment) Referring to FIGS. 10(a) to 10(c) and FIG. 11, the recording apparatus according to the second embodiment will be described. Here, the configuration around the fixing portion of the cutting device 20 in the second embodiment will be described. FIG. 10(a) is a schematic cross-sectional view showing the downstream configuration of the sheet discharge unit 500 in the first embodiment. FIG. 10(b) is a schematic cross-sectional view showing the downstream configuration of the sheet discharge unit 500b in the second embodiment. FIG. 10(c) is a schematic cross-sectional view showing the downstream configuration of the sheet discharge unit 500c in a modification of the second embodiment. FIG. 11 is a schematic perspective view of the downstream configuration of the sheet discharge unit 500. In FIGS. 10(a) to 10(c), illustration of the cutter belt 41, the cutter carriage 42, the cutter unit 43, etc. is omitted.
[0071] In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals as in the first embodiment, and the description thereof is omitted. Matters not particularly described herein in the second embodiment are the same as those in the first embodiment.
[0072] As shown in FIG. 10(a), a fixing heater 90 is disposed above the paper discharge guide 71. During fixing and drying, high-temperature hot air is blown from the fixing heater 90 toward the sheet 1 and the paper discharge guide 71, and the gap space formed between the paper discharge guide 71 and the fixing heater 90 may reach a high temperature of 100° C. or higher. Since the cutting device 20 is immediately downstream of the fixing and drying area, it is disposed at a position where heat is easily transferred.
[0073] The cutting device 20 is configured to ensure the rigidity in the longitudinal direction (sheet width direction) with the strength of the cutter rail 40, and mechanism components such as the cutter belt 41, the cutter carriage 42, and the cutter unit 43 are attached thereto. Therefore, a metal material such as a steel plate is used for the cutter rail 40 to ensure strength. When fixing the cutting device 20, as shown in FIG. 11, the cutter rail 40 is screwed to each of a plurality of fixing portions 203 provided in the sheet width direction with respect to the paper discharge guide base 75. However, heat from the fixing heater 90 is transmitted to the cutter belt 41, the cutter carriage 42, and the cutter unit 43 through the cutter rail 40 which is a metal material, and the components may become hot. In such a case, depending on the magnitude of the load applied when cutting the sheet 1, there is a concern that problems such as deformation and breakage of the components and tooth skipping of the belt may occur. Therefore, it is preferable that the cutter rail 40 has a fixing method through which heat is hardly transmitted.
[0074] In this configuration, the cutter rail 40 is fixed to the paper discharge guide base 75 by the fixing portion 203. Since the paper discharge guide base 75 forms a heat transfer path from the paper discharge guide 71 which is likely to become hot due to heat received from the fixing heater 90, through the fixing member 74 and the heat insulating material 76, it has a fixing method through which heat is hardly transmitted. It is desirable that the material used for the fixing member 74 has a lower heat transfer rate than the materials used for the paper discharge guide 71 and the paper discharge guide base 75.
[0075] Here, when the cutter rail 40 is configured to be fixed only to the paper discharge guide base 75, the strength of the fixing portion 203 depends on the plate thickness strength of the paper discharge guide base 75, and it may be difficult to ensure the strength.
[0076] Therefore, in the second embodiment of the present invention, as a first configuration for ensuring the above-described strength, as shown in FIG. 10(b), a reinforcing member 201 is attached to the lower part of the paper discharge guide base 75. More specifically, the reinforcing member 201 is attached to the back side of the portion of the paper discharge guide base 75 where the cutter rail 40 is fixed. The reinforcing member 201 includes a portion attached to the back side of the portion of the paper discharge guide base 75 where the fixing member 74 is fixed. The reinforcing member 201 is attached to the paper discharge guide base 75 so as to overlap both the cutter rail 40 and the fixing member 74 when viewed in the direction VD perpendicular to the conveyance surface of the paper discharge guide 71 (the surface of the paper discharge guide 71 along the conveyance direction CD of the sheet 1).
[0077] The reinforcing member 201 has an attachment portion 201a as an upstream attachment portion in the conveyance direction CD of the sheet 1 as an attachment portion to the paper discharge guide base 75. The attachment portion 201a is disposed in the vicinity of the fixing member 74, and in the present embodiment, is disposed upstream of the fixing member 74 in the conveyance path of the sheet 1. Since the vicinity of the fixing member 74 is a portion where the cross-sectional strength is ensured by connecting the paper discharge guide 71 and the paper discharge guide base 75 with the fixing member 74, the reinforcing member 201 can be firmly attached.
[0078] Further, the reinforcing member 201 has an attachment portion 201b as a downstream attachment portion in the conveyance direction CD of the sheet 1 as an attachment portion to the paper discharge guide base 75. The attachment portion 201b is disposed downstream of the fixing portion 203 between the cutter rail 40 and the paper discharge guide base 75 in the conveyance path of the sheet 1.
[0079] By providing such a reinforcing member 201, the strength of the fixing portion 203 between the cutter rail 40 and the paper discharge guide base 75 can be made strong by the plate thickness of the paper discharge guide base 75 and the reinforcing member 201. The paper discharge guide base 75 is composed of a plate-shaped member such as sheet metal, and by attaching the reinforcing member 201 as described above, deformation and the like in at least the portion between the attachment portion 201a and the attachment portion 201b are suppressed.
[0080] Also, in a modification of the present embodiment, as a second measure to ensure strength, as shown in FIG. 10(c), the downstream end portion of the paper discharge guide 71 and the cutter rail 40 are fastened via a spacer member 202 having a low heat transfer rate. The spacer member 202 is fixed to the cutter rail 40 by a fixing portion 204 and fixed to the paper discharge guide 71 by a fixing portion 205. The spacer member 202 is arranged so as to be sandwiched between the cutter rail 40 and the paper discharge guide 71 in the sheet conveyance direction CD. The heat transfer rate of the material constituting the spacer member 202 is lower than that of the material constituting the paper discharge guide 71.
[0081] According to this configuration, since the cutter rail 40 is fastened to the paper discharge guide 71 via the paper discharge guide base 75 and the spacer member 202, the fixing strength can be ensured.
[0082] The above embodiments can be combined with each other in their respective configurations.
[0083] The disclosure of the embodiments of the present invention includes the following configurations. (Configuration 1) A holding portion for holding a roll sheet, A conveyance portion for conveying a sheet pulled out from the roll sheet held by the holding portion, A guide portion for guiding the sheet conveyed by the conveyance portion along a conveyance path, A cutting portion for cutting the sheet downstream of the guide portion in the conveyance path, Comprising The guide portion and the cutting portion are integrally configured to be movable to a first position approaching the roll sheet held by the holding portion and a second position away from the roll sheet held by the holding portion. A transport device characterized by that. (Configuration 2) Further comprising a fixing portion for performing a fixing process on the sheet passing through the conveyance path, The fixing unit is configured to be movable between a third position where it heats the sheet facing the front guide unit and a fourth position away from the guide unit, and the conveying device according to Configuration 1 is characterized by this. (Configuration 3) The fixing unit includes a heater for heating the sheet passing through the conveying path as the fixing process, and the conveying device according to Configuration 1 or 2 is characterized by this. (Configuration 4) The guide unit includes a guide member that forms the conveying surface of the sheet, and a base member disposed on the side opposite to the conveying path with respect to the guide member, and the cutting unit is provided integrally with the base member, and the conveying device according to any one of Configurations 1 to 3 is characterized by this. The cutting unit is provided integrally with the base member, and the conveying device according to any one of Configurations 1 to 3 is characterized by this. (Configuration 5) The guide unit further includes a fixing member that connects between the guide member and the base member, and the thermal conductivity of the material constituting the fixing member is lower than the thermal conductivity of the material constituting the base member, and the conveying device according to any one of Configurations 1 to 4 is characterized by this. (Configuration 6) The guide unit further includes a heat insulating material filled between the guide member and the base member, and the conveying device according to any one of Configurations 1 to 5 is characterized by this. (Configuration 7) The cutting unit includes a rail extending in the width direction of the sheet intersecting the conveying direction of the sheet, and a cutting member configured to be movable in the width direction on the rail, and the rail is fixed to the base member, and the conveying device according to any one of Configurations 1 to 6 is characterized by this. The rail is fixed to the base member, and the conveying device according to any one of Configurations 1 to 6 is characterized by this. (Configuration 8) The cutting member includes an upper blade and a lower blade arranged in a direction perpendicular to the surface of the sheet, The upper blade and the lower blade have a contact portion, and by moving on the rail in the width direction while sandwiching the sheet at the contact portion, the sheet is cut at the contact portion, which is the conveyance device according to any one of Configurations 1 to 7. (Configuration 9) Downstream of the cutting portion in the conveyance path, it further includes a downstream guide portion that guides the sheet along the conveyance path. The downstream guide portion is provided integrally with the guide portion and the cutting portion, which is the conveyance device according to any one of Configurations 1 to 8. (Configuration 10) It is further provided with a winding portion that is disposed downstream of the downstream guide portion in the conveyance path and winds up the sheet. Between the guide portion, the cutting portion, and the downstream guide portion in the second position and the winding portion, the roll sheet held by the holding portion is exposed, which is the conveyance device according to any one of Configurations 1 to 9. (Configuration 11) The downstream guide portion guides the sheet while contacting the sheet so as to apply tension to the sheet between the guide portion and the winding portion in the conveyance path, which is the conveyance device according to any one of Configurations 1 to 10. (Configuration 12) The downstream guide portion includes an R shape in a cross-sectional shape perpendicular to the width direction of the sheet that intersects the conveyance direction of the sheet, which is the conveyance device according to any one of Configurations 1 to 11. (Configuration 13) The guide portion further includes a reinforcing member attached to the back side of the portion of the base member where the rail is fixed, which is the conveyance device according to any one of Configurations 1 to 12. (Configuration 14) The reinforcing member includes a portion attached to the back side of the portion of the base member where the fixing member is fixed, which is the conveyance device according to any one of Configurations 1 to 13. (Configuration 15) The conveying device according to any one of Configurations 1 to 14, wherein the reinforcing member overlaps both the rail and the fixing member when viewed in a direction perpendicular to the conveying surface. (Configuration 16) The reinforcing member has a downstream attachment portion attached to the base member downstream of a fixing portion between the rail and the base member in the conveying path, and an upstream attachment portion attached to the base member upstream of the fixing member in the conveying path. The conveying device according to any one of Configurations 1 to 15, characterized in that it has the above. (Configuration 17) The conveying device further includes a spacer connecting between the guide member and the rail, and a thermal conductivity of a material constituting the spacer is lower than a thermal conductivity of a material constituting the guide member. The conveying device according to any one of Configurations 1 to 16, characterized in that it has the above. (Configuration 18) The recording device includes: the conveying device according to any one of Configurations 1 to 17, and a recording unit that performs recording on a sheet between the holding portion and the guide portion in the conveying path.
Explanation of Signs
[0084] 1... Sheet, 20... Cutting device, 60a... Outer-winding sheet supply unit, 60b... Inner-winding sheet supply unit, 71... Paper discharge guide, 73... Downstream R portion of paper discharge guide, 74... Paper discharge guide fixing member, 74a... Inclined path, 75... Paper discharge guide base, 76... Heat insulating material, 90... Fixing heater, 100... Printing device, 200... Supply device, 300... Sheet conveying unit, 400... Recording unit, 500... Sheet discharge unit, 600... Winding unit, R... Roll sheet, R1... Outer-winding roll sheet, R2... Inner-winding roll sheet, 203... Fixing portion
Claims
1. A holding part for holding a roll sheet; A conveying part for conveying a sheet drawn from the roll sheet held by the holding part; A guide part for guiding the sheet conveyed by the conveying part along a conveying path; A cutting part for cutting the sheet downstream of the guide part in the conveying path; Comprising; The guide part and the cutting part are integrally configured to be movable to a first position approaching the roll sheet held by the holding part and a second position away from the roll sheet held by the holding part. A conveying device characterized by this.
2. Further comprising a fixing part for performing a fixing process on the sheet passing through the conveying path, The fixing part is configured to be movable to a third position for heating the sheet facing the guide part and a fourth position away from the guide part. The conveying device according to claim 1, characterized by this.
3. The fixing part includes a heater for heating the sheet passing through the conveying path as the fixing process. The conveying device according to claim 2, characterized by this.
4. The guide part, A guide member forming a conveying surface of the sheet; A base member disposed on the side opposite to the conveying path with respect to the guide member; Including; The cutting part is provided integrally with the base member. The conveying device according to claim 1, characterized by this.
5. The guide part further includes a fixing member connecting between the guide member and the base member, The thermal conductivity of the material constituting the fixing member is lower than the thermal conductivity of the material constituting the base member. The conveying device according to claim 4, characterized by this.
6. The guide part further includes a heat insulating material filled between the guide member and the base member. The conveying device according to claim 5, characterized by this.
7. The cutting part, A rail extending in the width direction of the sheet intersecting the conveying direction of the sheet; A cutting member configured to be movable in the width direction on the rail; Comprising; The rail is fixed to the base member. The conveying device according to claim 5, characterized by this.
8. The cutting member includes an upper blade and a lower blade arranged in a direction perpendicular to the surface of the sheet, The upper blade and the lower blade have a contact part, and by moving on the rail in the width direction while sandwiching the sheet at the contact part, the sheet is cut at the contact part. The conveying device according to claim 7, characterized by this.
9. Downstream of the cutting part in the conveying path, a downstream guide part for guiding the sheet along the conveying path is further provided. The conveying device according to claim 5, wherein the downstream guide part is provided integrally with the guide part and the cutting part.
10. A winding part for winding the sheet is further provided, which is arranged downstream of the downstream guide part in the conveying path. The conveying device according to claim 9, wherein the roll sheet held by the holding part is exposed between the guide part, the cutting part, and the downstream guide part at the second position, and the winding part.
11. The conveying device according to claim 10, wherein the downstream guide part guides the sheet while contacting the sheet so as to apply tension to the sheet between the guide part and the winding part in the conveying path.
12. The conveying device according to claim 11, wherein the downstream guide part includes an R shape in a cross-sectional shape perpendicular to the width direction of the sheet intersecting the conveying direction of the sheet.
13. The conveying device according to claim 7, wherein the guide part further includes a reinforcing member attached to the back side of the portion of the base member where the rail is fixed.
14. The conveying device according to claim 13, wherein the reinforcing member includes a portion attached to the back side of the portion of the base member where the fixing member is fixed.
15. The conveying device according to claim 14, wherein the reinforcing member overlaps both the rail and the fixing member when viewed in a direction perpendicular to the conveying surface.
16. The reinforcing member has a downstream attachment part attached to the base member downstream of the fixing part of the rail and the base member in the conveying path, and an upstream attachment part attached to the base member upstream of the fixing member in the conveying path. The conveying device according to claim 14, characterized by having the above.
17. The conveying device according to claim 7, further comprising a spacer connecting between the guide member and the rail. The heat conductivity of the material constituting the spacer is lower than the heat conductivity of the material constituting the guide member.
18. The conveying device according to any one of claims 1 to 17, and A recording unit that performs recording on the sheet between the holding unit and the guide unit in the conveyance path; A recording apparatus, characterized by comprising the same.
Citation Information
Patent Citations
Dryer and image formation apparatus
JP2019162769A