JP2013043748A - Recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording device, capable of improving the workability in attachment of a front end of a recording medium to a winding shaft tube.SOLUTION: One end 72A of a belt member 72 is attached to the winding shaft tube 71, and clamp member 73 capable of clamping the front end of a roll sheet R is attached to the other end 72B of the belt member 72.

Description

  The present invention relates to a recording apparatus that records an image on a roll-shaped recording medium.

  2. Description of the Related Art As an output device for a computer or workstation, there is known an ink jet recording apparatus that records an image by ejecting ink onto a recording medium such as recording paper that is transported in a predetermined transport direction.

  As this type of ink jet recording apparatus, the serial scan type is equipped with a recording head capable of ejecting ink and reciprocating in the main scanning direction, and recording in the sub-scanning direction (conveying direction) intersecting the main scanning direction. And a transport device that transports the medium. A plurality of ejection ports capable of ejecting ink are formed on the ejection port surface of the recording head. When recording an image on a recording medium, the conveyance of the recording medium by the conveying device is temporarily stopped. During the stop, the ink is ejected from the ejection port of the recording head on the basis of the image signal while reciprocating the carriage with the recording head in the main scanning direction. An image for one band is recorded in the recording area. Thereafter, the recording medium is conveyed by the width of one band, and then the conveyance is stopped again. During the stop, the ink is ejected from the ejection port of the recording head on the basis of the image signal while reciprocating the carriage with the recording head in the main scanning direction. The next one band image is recorded in the recording area. By repeating such an operation, images are sequentially recorded on the recording medium.

  Patent Document 1 describes a recording apparatus 90 including a winding device 94 as shown in FIG. The take-up device 94 pulls out a recording medium 92 (hereinafter referred to as roll paper) wound around the roll paper tube 91, and winds the roll paper 92 after the image is recorded onto the take-up shaft tube 93. The take-up shaft tube 93 is configured to rotate. The take-up shaft tube 93 is provided with a belt-like member 95 (also called a take-up lead) having a predetermined length for attaching the leading end 92a of the roll paper 92, as indicated by a dotted line in the drawing. A clamp member 96 is provided in the vicinity of the discharge port of the recording apparatus 90 to temporarily fix the leading end 95a of the belt-like member 95. In the vicinity of the clamp member 96, the roll paper tube 91 and the take-up shaft tube 93 are parallel. A reference line 97 is provided.

  When winding the roll paper 92, first, the leading end 95 a of the belt-like member 95 is temporarily fixed to the clamp member 96. Then, the front end 92a of the roll paper 92 is conveyed to the discharge port of the recording apparatus 90, and the roll paper 92 is attached to the front end portion 95a of the belt-like member 95 in a state where the front end 92a of the roll paper 92 is aligned with the reference line 97. The connection between the paper 92 and the winding device 94 is completed. Then, the roll paper 92 on which the image is recorded is taken up on the take-up shaft tube 93 by rotating the take-up shaft tube 93 in association with the image recording operation. As the winding device 94, a configuration in which the leading end 92a of the roll paper 92 is directly attached to the winding shaft tube 93 is also known. However, in such a configuration, the leading end 92a of the roll paper 92 must be transported wastefully from the discharge port of the recording apparatus 90 to the position of the take-up shaft tube 93. In order to minimize the waste of the roll paper 92, a belt-like member 95 is provided on the winding shaft tube 93.

JP 2000-128405 A

  However, in the recording apparatus 90 described in Patent Document 1, since it is necessary to use an adhesive tape or the like to attach the leading end 92a of the roll paper 92 to the leading end portion 95a of the belt-like member 95, the mounting operability is poor. . In addition, since the user may cut the leading end 92a of the roll paper 92 using a cutter or the like, it is not always parallel to the roll paper tube 91 and the take-up shaft tube 93. Therefore, when the roll paper 92 is attached to the front end portion 95a of the belt-like member 95 in a state where the front end 92a of the roll paper 92 is aligned with the reference line 97, the roll paper 92 has a front end 92a, a roll paper tube 91, and a winding shaft tube 93. In some cases, the parallelism of, cannot be secured. If these parallelisms are deviated, the roll paper 92 is sent obliquely when the take-up shaft tube 93 winds the roll paper 92, which may cause jamming and deterioration of the quality of the recorded image. There is.

  An object of the present invention is to provide a recording apparatus that can improve the workability of attaching the tip of a recording medium to a winding shaft tube.

  The recording apparatus of the present invention includes a holding unit that rotatably holds a roll-shaped recording medium, a recording unit that records an image on a recording medium drawn from the holding unit, and an image recorded by the recording unit. A winding device for winding the recording medium, wherein the winding device includes a rotatable winding shaft tube, and a belt-like member having one end attached to the winding shaft tube; And clamping means attached to the other end of the belt-like member and capable of clamping the leading end of the recording medium.

  According to the present invention, since the tip of the recording medium can be attached to the band-like member by the clamp member attached to the band-like member, the workability of attaching the recording medium and the band-like member can be dramatically improved. Further, when the belt-like member is wound around the winding shaft tube, the clamping means and the winding shaft tube are combined so as to have a substantially cylindrical shape, so that the recording medium can be substantially wound up. The recording medium after winding can be stored in a good state while maintaining the cylindrical shape. Further, by providing positioning means for positioning the clamp means and an index for adjusting the position of the recording medium, the parallelism between the recording medium and the winding means can be maintained without being influenced by the tip shape of the recording medium. it can. As a result, it is possible to prevent jamming and stabilize the quality of the recorded image.

1 is a schematic configuration diagram of an inside of a recording apparatus according to an embodiment of the present invention as viewed from the side. FIG. 2 is a schematic perspective view of the recording apparatus in FIG. 1. It is a perspective view of the clamp member in FIG. (A), (b) is a side view in a different state of a clamp member. It is a side view of the winding axial tube around which the clamp member was wound. (A), (b), (c) is the perspective view of the paper discharge guide seen from the direction of arrow VI in FIG. 2, respectively. FIG. 2 is a block configuration diagram of a control system of the recording apparatus in FIG. 1. 3 is a flowchart for explaining a recording process of the recording apparatus of FIG. 1. It is a perspective view of the conventional recording device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the constituent elements described in this embodiment are merely examples, and are not intended to limit the scope of the present invention only to them. In the following, a printer as an ink jet recording apparatus will be described as an example. However, the recording apparatus of the present invention can also be applied as a multifunction machine having a copying function, a scanning function, etc., a so-called multi-function printer. is there. In the inkjet method, various methods such as an electrothermal conversion element (heater), a piezo element, an electrostatic element, or a MEMS element can be used to eject ink. The recording method in the recording apparatus of the present invention is not limited to the ink jet method, and various methods such as an electrophotographic method and a thermal transfer method can be applied.

  FIG. 1 is a cross-sectional view illustrating a configuration of a main part of a printer (recording apparatus) 100 according to the present embodiment. FIG. 2 is a perspective view illustrating a configuration of a main part of the printer 100. The main parts of the printer 100 are a printer main body 1, a sheet supply unit 2 as a sheet (recording medium) supply device, a recording unit 3 as a sheet processing unit, a cutter 4, a stand 5, a discharge guide 6, and a winding device 7. Etc. are comprised.

  The printer main body 1 holds each part constituting the printer 100, and supports the operation unit 11 at a height at which the user can easily operate from the installation floor by the stand 5. The legs 51 of the stand 5 are provided with casters 52 for facilitating movement on the installation surface. The sheet supply unit 2 supplies a roll sheet R as a recording medium. A roll holder 21 that rotatably supports the roll sheet R in the vicinity of both ends of the central axis Rc, and the roll sheet R of the recording unit 3 are supported. It comprises a supply path 22 that guides in the direction.

  The recording unit 3 records an image on the roll sheet R supplied to the recording position. The recording unit 3 includes a roll sheet detection sensor 35 that detects whether or not the roll sheet R is inserted in the recording unit 3, a conveyance roller 32 for conveying the roll sheet R in the sub-scanning direction indicated by the arrow Y, and a recording operation. A platen 33 for guiding the roll sheet R is sometimes provided. Further, the recording unit 3 includes a recording head 31 located on the opposite side of the platen 33 across the roll sheet R, and a carriage 34 on which the recording head 31 is detachably mounted. The carriage 34 reciprocates in the main scanning direction of the arrow X that intersects (orthogonally in this example) the conveyance direction (arrow X direction) of the roll sheet R. On the ejection port surface of the recording head 31 facing the recording area of the roll sheet R, a plurality of ejection ports capable of ejecting ink are arranged in a direction intersecting (in the present example, orthogonal) with the main scanning direction. . In order to eject ink, an electrothermal conversion element (heater), a piezoelectric element, or the like can be used. In synchronism with the reciprocating movement of the carriage 34 on which the recording head 31 is mounted, the operation of ejecting ink from the ejection port based on the recording data and the operation of conveying the roll sheet R by a predetermined amount are alternately repeated, whereby the roll Images are sequentially recorded in a recording area on the sheet R.

  The cutter 4 cuts the roll sheet R and is arranged on the downstream side in the transport direction from the recording position. The take-up device 7 is supported by the stand 5 and accommodates the recorded roll sheet R, which is guided by the down slope 6A of the discharge guide 6 and conveyed outside the printer body 1, in a roll shape. The take-up device 7 includes a take-up shaft tube 71 rotated by a drive source (not shown), one end 72A attached to the take-up shaft tube 71, and the other end 72B attached to a clamp member 73 described later. A material (band member) 72. The winding shaft tube 71 is arranged so as to be parallel to the rotation axis of the roll sheet R supported by the roll holder 21. The winding sheet material 72 is thinly formed of a material having low rigidity so that the winding sheet material 72 can be easily wound around the winding shaft tube 71. In the present embodiment, the take-up sheet material 72 is made of cloth, but a resin film or an elastic rubber sheet member can also be used. The take-up sheet material 72 is set to a length that reaches the middle position in the discharge direction of the roll sheet R on the descending slope 6A of the discharge guide 6.

  When the user inserts the leading end of the roll sheet R held by the roll holder 21 from the entrance of the supply path 22 and the roll sheet detection sensor 35 detects the leading end of the roll sheet R, the transport roller 32 rotates. The leading end of the roll sheet R is supplied to the recording unit 3. For the roll sheet R transported in this way, the operation of ejecting ink from the ejection port based on the recording data in synchronization with the reciprocation of the carriage 34 on which the recording head 31 is mounted, and the roll sheet R An image is recorded by repeating the operation of carrying the fixed amount. The recorded roll sheet R is sequentially wound into a roll by the winding device 7. After the end of the recording operation, the rear end portion of the image recorded on the roll sheet R is conveyed to the position of the cutter 4 and then the rear end portion is cut. Thereafter, the recorded roll sheet R is changed to the rear end portion. Until it is wound up by the winding device 7 and accommodated.

  3 is a perspective view of the clamp member 73, and FIGS. 4A and 4B are side views of the clamp member 73.

  The clamp member 73 is mainly composed of a clamp base 74 and a clamp arm 75, and has a semicircular cross section as a whole. The clamp base 74 and the clamp arm 75 have a width equal to or larger than the maximum width of the roll sheet R that can be conveyed in the printer 100. The other end 72 </ b> B of the take-up sheet material 72 is attached to the clamp base 74. The clamp member 73 extends in a direction orthogonal to the conveyance direction of the roll sheet R. Positioning holes 76 and 77 are located at both ends of the clamp base 74 in areas outside the position corresponding to the maximum width roll sheet R that can be conveyed by the printer 100 (outside the area through which the maximum width roll sheet R passes). Is formed. As shown in FIG. 5, when the winding sheet material 72 is wound around the winding shaft tube 71, the center line 78 passing through the centers of the positioning holes 76 and 77 is parallel to the axis of the winding shaft tube 71. A clamp arm 75 is supported on the clamp base 74 so as to be rotatable about a support shaft 80. A clamp portion 79 is formed on the clamp arm 75, and a leading end of the roll sheet R can be clamped between the clamp base 74 and the clamp portion 79 by a compression spring 82.

  When the front end of the roll sheet R is clamped by the clamp member 73, the user presses the knob portion 81 of the clamp arm 75 in the direction in which the compression spring 82 is compressed, and the clamp portion 79 is moved as shown in FIG. Open. Then, the leading end of the roll sheet R is inserted between the clamp portion 79 and the clamp base 74. Thereafter, by releasing the pressing of the knob portion 81, the leading end of the roll sheet R is sandwiched between the clamp portion 79 and the clamp base 74 by the restoring force of the compression spring. In addition, by forming the opposing part of the clamp part 79 and the clamp base 74 with an elastic member having a high friction coefficient such as rubber, the tip of the roll sheet R can be optimally sandwiched between them. That is, the leading edge of the roll sheet R is difficult to shift between them, and can be sandwiched without scratching the surface of the roll sheet R.

  FIG. 5 is a side view of a state in which the clamp member 73 is wound around the winding shaft tube 71. The winding shaft tube 71 has a semicircular cross section, and when the winding sheet material 72 is wound up to the other end 72B attached to the clamp member 73 on the outer peripheral surface thereof, the winding shaft tube 71 and the clamp member 73 are combined in a cylindrical shape. That is, as shown in FIG. 5, the portion (string portion) corresponding to the cross-sectional string in the clamp member 73 enters the portion corresponding to the cross-sectional string (string portion) in the winding shaft tube 71. Becomes cylindrical. The length of the winding sheet material 72 is set so that the winding shaft pipe 71 and the clamp member 73 are combined in this way when the winding sheet material 72 is wound around the winding shaft pipe 71. .

  On both sides of the paper discharge guide 6, there are clamp lock members 61, in areas outside the position corresponding to the maximum width roll sheet R that can be conveyed by the printer 100 (outside the area through which the maximum width roll sheet R passes). 62 is arranged. A center line 65 (see FIG. 2) passing through the centers of the clamp lock members 61 and 62 is parallel to the center Rc of the roll sheet R supported by the roll holder 21. The clamp lock members 61 and 62 can be moved up and down at an arbitrary timing from the surface of the paper discharge guide 6 by a drive system (not shown). 6A, 6B, and 6C are perspective views of the paper discharge guide 6 as viewed from the direction of the arrow VI in FIG. A reference line (index) 63 is attached to the descending slope 6 </ b> A of the paper discharge guide 6. The printer main body 1 of this example is configured to convey the roll sheet R using the position of the right end in FIG. 2 as a reference (sheet passing reference), and conveys the roll sheet R having a different size in the width direction. Even in this case, the right end of the roll sheet R always passes through the same position. The reference line 63 in this example is attached at a position that coincides with the right end of the roll sheet R being conveyed. In the vicinity of the clamp lock member 61, a clamp member detection sensor 64 for detecting whether or not the clamp member 73 is attached to the paper discharge guide 6 is disposed.

  When the leading end of the roll sheet R is clamped to the clamp member 73 of the winding device 7, first, the user positions the clamp member 73 on the paper discharge guide 6. Then, as shown in FIG. 6A, the clamp member 73 is positioned on the discharge guide 6 through the clamp member positioning holes 76 and 77 of the clamp base 74 through the clamp lock members 61 and 62 protruding from the discharge guide 6. . Thereby, the extending direction of the clamp member 73 (extending in the conveying direction of the roll sheet R) is parallel to the central axis Rc of the roll sheet R and the axis of the take-up shaft tube 71. Next, after aligning the right end of the roll sheet R conveyed to a position overlapping with the clamp member 73 with the reference line 63, the roll sheet R is moved by the clamp member 73 as shown in FIG. Hold the tip of the.

  FIG. 7 is a block configuration diagram of a control system of the printer 100. In FIG. 7, the CPU 200 executes control processing of the operation of the printer 100, data processing, and the like. The ROM 201 stores programs such as those processing procedures, and the RAM 202 is used as a work area for executing these processes. Ink is ejected from the recording head 31 when the CPU 200 supplies a drive signal such as an electrothermal conversion element (heater) or a piezo element to the head driver 31A. The CPU 200 controls a carriage motor 203 for driving the carriage 34 in the main scanning direction via the motor driver 203A, and a conveyance motor 204 for conveying the roll sheet R in the sub scanning direction via the motor driver 204A. Control. The CPU 200 can control the recording operation based on image data and control signals input from the host device 300.

  FIG. 8 is a flowchart for explaining a series of recording processes including winding of the roll sheet R in the printer 100.

  The printer 100 starts a series of recording processes upon receiving a recording command, and first determines whether or not the roll sheet detection sensor 35 detects the leading edge of the roll sheet R (step S1). The roll sheet detection sensor 35 of this example is turned on when the leading edge of the roll sheet R is detected. When the leading edge of the roll sheet R is inserted to the position of the conveyance roller 32, the roll sheet detection sensor 35 is turned on. When the roll sheet detection sensor 35 is ON, the clamp member detection sensor 64 detects whether or not the clamp member 73 is positioned on the clamp lock members 61 and 62 of the paper discharge guide 6 (step S2). The clamp member detection sensor 64 of this example is turned on when the clamp member 73 is positioned by the clamp lock members 61 and 62. When the clamp member detection sensor 64 is OFF, it is determined that winding of the roll sheet R is not necessary, and the recording operation is executed without causing the winding device 7 to function (step S3). As described above, the recording operation is synchronized with the reciprocation of the carriage 34 on which the recording head 31 is mounted, and the operation of ejecting ink from the ejection port based on the recording data and the operation of conveying the roll sheet R by a predetermined amount. The image is recorded by repeating the above.

  When the clamp member detection sensor 64 is ON, the conveyance motor 204 is driven (step S4), the conveyance sheet 204 is conveyed to a position where the leading edge of the roll sheet R overlaps with the clamp member 73, and then the drive of the conveyance motor 204 is stopped. (Steps S5 and S6). Thereafter, the user holds the leading end of the roll sheet R between the clamp members 73 as described above, and presses an OK button disposed on the operation unit 11 of the printer 100 after the holding operation (clamping operation) is completed (step S7). ). When the OK button is pressed, the clamp lock members 61 and 62 are retracted downward (steps S7 and S8), and the positioning of the clamp member 73 is released. Thereafter, the recording operation is started (step S9). As described above, this recording operation is an operation for ejecting ink from the ejection port based on the recording data and an operation for transporting the roll sheet R by a predetermined amount in synchronization with the reciprocation of the carriage 34 on which the recording head 31 is mounted. The image is recorded by repeating the above.

  After starting the recording operation, the winding device 7 is driven to start the winding operation of the roll sheet R (step S10). When the predetermined recording operation is finished, the conveyance motor 204 is driven (steps S11 and S12), and after the predetermined amount is conveyed until the rear end portion of the image recording area on the roll sheet R is positioned on the cutter 4, The drive of the conveyance motor 204 is stopped (steps S13 and S14). Thereafter, the cutter 4 is driven to cut the roll sheet R (step S15), and then the roll sheet R is wound up to the rear end portion of the roll sheet R cut by the cutter 4 by the winding device 7. The taking operation is terminated (step S16).

  In the winding device 7 of this example, one end 72A of the winding sheet material 72 is attached to the winding shaft tube 71 and the other end 72B of the winding sheet material 72 is provided with the clamp member 73. The tip of the roll sheet R can be easily clamped. Further, since a reference line 63 that coincides with the sheet passing reference of the roll sheet R is formed in the paper discharge guide 6, the user aligns the end of the roll sheet R with the reference line 63 and then the roll sheet R. The tip of R can be clamped by the clamp member 73. Thereby, the front-end | tip of the roll sheet R can be clamped to the clamp member 73 so that the roll sheet R and the winding device 7 may always be maintained at appropriate parallelism. As a result, the roll sheet R is not obliquely fed and wound, and it is possible to prevent jamming and stabilize the quality of recorded images.

(Other embodiments)
The present invention can be widely applied to various recording apparatuses that record an image on a roll-shaped recording medium, and the recording apparatus is not limited to the serial scan type as described above. May be a full-line type that records an image while continuously conveying the image. The recording method in the recording apparatus is not limited to the ink jet method, and may be an electrophotographic method, a thermal transfer method, or the like. The present invention can also be applied to a storage device for storing a recording medium discharged from the recording device.

3 Recording unit 7 Winding device 61, 62 Clamp lock member (positioning means)
63 Base line (index)
71 Winding shaft tube 72 Winding sheet material (band-shaped member)
100 Printer (Recording device)
R Roll sheet (recording medium)

Claims (7)

A holding means for rotatably holding a roll-shaped recording medium, a recording means for recording an image on a recording medium drawn out from the holding means, and for winding the recording medium on which an image is recorded by the recording means A recording device comprising winding means,
The winding means includes a rotatable winding shaft tube, a belt-like member having one end attached to the winding shaft tube, and a clamp that can be attached to the other end of the belt-like member and clamp the tip of the recording medium. And a recording device.   2. The recording apparatus according to claim 1, wherein when the belt-shaped member is wound around the winding shaft tube, the winding shaft tube and the clamping means are combined in a cylindrical shape.   The recording apparatus according to claim 1, further comprising a positioning unit that positions the clamp member at a position downstream of the recording unit in a conveyance direction of the recording medium. The clamp means extends in a direction perpendicular to the conveyance direction of the recording medium,
The positioning means positions the clamping means so that an extending direction of the clamping means is parallel to a central axis of the roll-shaped recording medium and an axis of the winding shaft tube. 3. The recording device according to 3.   5. The recording apparatus according to claim 3, wherein an index perpendicular to the central axis of the roll-shaped recording medium and the axis of the take-up shaft tube is provided in the vicinity of the positioning means.   6. The recording apparatus according to claim 3, further comprising control means for releasing the positioning of the clamping means by the positioning means.   The recording apparatus according to claim 6, wherein the control unit releases the positioning of the clamp unit by the positioning unit when the recording unit starts recording an image.

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