JP5355267B2 - Recording device - Google Patents

Description

  The present invention relates to a recording apparatus that performs recording on a recording medium, and more particularly to a recording apparatus that can use roll paper as the recording medium.

  A recording apparatus such as a printer, a copying machine, and a facsimile is configured to record recording information (including characters and symbols) on a recording medium such as paper by a recording head as recording means. As the recording medium, sheet materials of various materials such as paper, cloth, plastic sheet, OHP (Overhead Projector) sheet, and the like are used.

  The recording apparatus can be classified into a thermal transfer type, a thermal type, an ink jet type, a laser beam type, a wire dot type, and the like according to a recording method. Among them, a thermal transfer type recording apparatus presses a recording medium and a thermal head, which is a recording head, with an ink ribbon sandwiched between them, and runs the ink ribbon in synchronization with the conveyance of the recording medium. An image is formed by heating and thermal transfer.

  Further, the recording medium disposed in the paper cassette provided in the recording apparatus is not limited to the strip-shaped recording medium, and roll paper obtained by winding a continuous strip-shaped recording medium around a roller-shaped bobbin. May be used. When roll paper is used as the recording medium, more recording media can be stored in a space-saving paper cassette. Furthermore, there is a merit that by separating the roll paper with an arbitrary length, it is possible to provide a recorded matter of different sizes without using a plurality of paper cassettes.

  A configuration of an example of a conventional thermal transfer recording apparatus using roll paper as a recording medium will be described. FIG. 12 is a schematic cross-sectional view of an example of a conventional recording apparatus.

  The roll paper p of the recording medium wound around the take-up bobbin 61a of the paper cassette 61 is fed out through the slit 61b, and a roller pair r1 of the paper feed roller 62 and the driven roller 63, a capstan roller 53, and a pinch roller. The roller pair r2 and 54 are sequentially held and conveyed. The roll paper p is sandwiched between the thermal head 51 and the platen roller 52 provided on the rotatable attachment frame 64, and recording is performed by thermal transfer. After the recording, the roll paper p is conveyed to the downstream side by the rotational drive of the capstan roller 53, is nipped by the roller pair r3 of the conveyance roller 56 and the driven roller 57, and is conveyed to the cutting position. The cutting of the roll paper p is performed by a cutter unit 55 configured by a cutter movable blade 55a and a cutter fixed blade 55b. An optical detection sensor 59 is provided between the cutter unit 55 and the roller pair r3 to detect the presence of the roll paper p and determine whether the cut roll paper p remains. . The cut roll paper p is conveyed by the roller pair r3 and stacked on the paper receiver 58.

  In the conventional example, a scissor-shaped cutter unit 55 provided with a cutter movable blade 55a that moves in the vertical direction (vertical direction) with respect to the surface of the roll paper p is shown as the cutting means. Other known cutting means include a rotary cutter that reciprocates in the width direction (lateral direction) of the recording medium (see Patent Document 1).

  The roll paper p cut by the cutter unit 55 is discharged substantially upward toward the paper receiver 58. When the cut roll paper p is discharged, the roll paper p is conveyed only by the holding force of the roller pair r3. Then, the cut roll paper p is discharged so as to be kicked out by the rotation operation of the transport roller 56 and is loaded in the paper receiver 58, and the discharge operation is completed.

JP 2002-226126 A

  A roller pair r2 composed of a capstan roller 53 and a pinch roller 54 is configured to accurately convey the roll paper p. However, when the roller pair r3 composed of the conveyance roller 56 and the driven roller 57 pulls the roll paper p with a strong conveyance force, the capstan roller 53 and the roll paper p positioned on the upstream side thereof are out of synchronization, and the roll The paper p is not cut accurately at the position to be cut. Therefore, the nip pressure of the roller pair r3 is weaker than the nip pressure of the roller pair r2.

  For this reason, since the nip pressure of the roller pair r3 is not so strong, the sheet is discharged substantially upward in the vertical direction, or the user touches the roll paper p cut during the sheet discharging operation. In this case, there is a possibility that the conveying roller 56 slips and an accurate discharging operation cannot be performed.

  Even when the transport roller 56 slips and the cut roll paper p2 is not discharged, if the capstan roller 53 or the like is continuously rotated, the leading end of the unrecorded roll paper p1 is cut by the cutter. It advances in the paper discharge direction via the unit 55. (The roll paper p transported from the paper cassette 61 is the upstream side of the cutter unit 55 and the recorded and cut roll paper is p2, and the downstream side of the cutter unit 55 and the unrecorded roll paper is p1. To be distinguished). As a result, the leading end of the unrecorded roll paper p1 conveyed from the upstream side overlaps the upper surface or the lower surface of the unrolled roll paper p2. At this time, not only the roll paper p2 that has not been discharged but also the leading end of the unrecorded roll paper p1 is sandwiched between the roller pair r3. In this state, when recording is performed while the roll paper p1 is conveyed in the reverse direction (the direction toward the upstream side), the cut roll paper p2 may also flow back together. Even if the roll paper p2 does not flow backward at this time, when the recorded and uncut roll paper p1 is conveyed again downstream, it overlaps the roll paper p2 again between the roller pair r3. When the cutting operation is performed in this state, the two cut rolls p2 overlap between the roller pair r3. Therefore, when unrecorded roll paper p1 is further conveyed from the upstream side, three roll papers (two cut roll papers p2 and one unrolled roll paper p1) are provided between the roller pair r3. Will be overlapped. As a result, the roller pair r3 may not hold and at least one of the three roll sheets may flow backward. If the roll paper p2 is not properly discharged, the transport path of the roll paper p is substantially upward, and there is a risk of backflow due to gravity. In addition, for example, when the unrolled roll paper p2 and the unrecorded roll paper p1 are overlapped between the roller pair r3, and the recording operation is performed while the unrecorded roll paper p1 is conveyed in the reverse direction. In addition, as described above, the cut roll paper p2 may also flow backward together. If the cutting operation is executed in this state, not only the roll paper p1 but also the cut paper p2 that has flown backward is cut, and as a result, there is a possibility that a short piece that cannot be conveyed by any roller remains in the apparatus. Thus, the short piece remaining in the apparatus may cause a serious jam or damage to mechanical parts.

  Conventionally, the drive source for rotationally driving the transport roller 56 and the drive source for rotationally driving the capstan roller 53 are the same, and the driving force from the same motor (not shown) is transmitted by a gear train (not shown). It has a configuration. Therefore, the roll paper p2 cannot be discharged while the unrecorded roll paper p1 is stopped. Therefore, if only the conveying roller 56 can be driven by using a dedicated motor, the unrecorded roll paper p1 can be stopped and the roll paper p2 that has not been discharged can be discharged. However, in this configuration, a dedicated motor is required, and there is a problem that the apparatus becomes complicated and the cost is increased accordingly. Furthermore, the slip of the conveyance roller 56 cannot be prevented.

  The present invention has been made in view of the above technical problems, and an object of the present invention is to provide a recording apparatus capable of discharging a cut recording medium with high accuracy.

  The recording apparatus of the present invention is located on the downstream side of the cutter unit for cutting the recording medium, the conveyance roller, and the roller holder at a position facing the conveyance roller across the recording medium. It has at least a roller pair composed of a driven roller. The roller holder also has an extruding section for extruding a recorded and cut recording medium to the outside of the conveyance path, and can be moved between a position where the driven roller is brought close to the conveyance roller and a position where it is separated from the conveyance roller. It is.

  According to the present invention, since the cut recording medium can be discharged regardless of whether or not the conveyance roller slips, and the backflow of the cut recording medium can be prevented, the cut recording medium can be discharged accurately. Can do.

1 is a schematic cross-sectional view of a first embodiment of a recording apparatus according to the present invention. FIG. 2 is an external perspective view of a roller holder of the recording apparatus in FIG. 1. FIG. 2 is a schematic enlarged view of a main part of the recording apparatus in FIG. 1 when a recording medium is cut. FIG. 2 is a schematic enlarged view of a main part of the recording apparatus in FIG. 1 when a recording medium is discharged. FIG. 5 is a diagram illustrating a flow of discharging a recording medium following FIG. 4. FIG. 6 is a diagram illustrating a flow of discharging a recording medium following FIG. 5. It is an external appearance perspective view of the roller holder of 2nd Embodiment of the recording device which concerns on this invention. It is an external appearance perspective view of the roller holder of 2nd Embodiment of the recording device which concerns on this invention. FIG. 6 is a schematic enlarged view of a main part of a recording apparatus according to a second embodiment when a recording medium is discharged. FIG. 10 is a diagram illustrating a flow of discharging a recording medium following FIG. 9. FIG. 11 is a diagram illustrating a flow of discharging a recording medium following FIG. 10. It is the schematic of the cross section of an example of the recording device of a prior art.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. In addition, the same number is attached | subjected to the structure which has the same function in an accompanying drawing, and the description may be abbreviate | omitted.

[Embodiment 1]
A first embodiment of a recording apparatus according to the present invention will be described. FIG. 1 shows a schematic view of a cross section of a first embodiment of a recording apparatus according to the present invention.

  A continuous belt-shaped roll paper P as a recording medium is wound around a roller-shaped bobbin 11 a and held inside the paper cassette 11. A plurality of types of roll paper P having a width corresponding to each of card size, L size, postcard size, and the like can be used. Each type of roll paper P is stored in a dedicated or combined paper cassette 11. When performing a recording operation, an ink ribbon cassette 10 and a paper cassette 11 (described later) corresponding to an arbitrary size are inserted into the recording apparatus main body to prepare. The paper cassette 11 is provided with a slit 11 b on a part of the outer peripheral surface so that the roll paper P can be discharged from the paper cassette 11. At the time of paper feeding, the take-up bobbin 11a rotates and the roll paper P is sent out of the paper cassette 11 through the slit 11b.

  Downstream of the paper cassette 11, a roller pair R <b> 1 is provided that includes a paper feed roller 12 and a driven roller 13 that faces the paper feed roller 12 with the transport path of the roll paper P interposed therebetween. The paper feed roller 12 is an active roller having a rubber portion, and the driven roller 13 is elastically biased toward the paper feed roller 12 by an elastic member (not shown). The roll paper P sent out from the paper cassette 11 is nipped by the roller pair R1 and conveyed.

  Downstream of the roller pair R1, there is a metal roller that faces the capstan roller 3 that conveys the roll paper P during recording on the roll paper P and the capstan roller 3 across the conveyance path of the roll paper P. A roller pair R2 with the pinch roller 4 in position is provided. The pinch roller 4 is elastically biased toward the capstan roller 3.

  The thermal transfer type recording apparatus is characterized by the conveying force of the capstan roller 3. For example, when the phase of the roll paper P and the capstan roller 3 is shifted during the color recording operation, a plurality of colors sequentially stacked on the roll paper P are shifted from each other, and the recording quality is deteriorated. In order to solve such a problem, it is common to provide a part of the capstan roller 3 with a thorn-like protrusion that pierces the back surface of the roll paper P to prevent slippage between the roll paper P and the capstan roller 3. . Thus, the capstan roller 3 having the protrusion and the pinch roller 4 have a larger force to sandwich and convey the roll paper P than the other roller pairs. As a result, the roller is unlikely to slip or deform, and as a result, the phase difference between the roll paper P and the capstan roller 3 is unlikely to occur, and the transport amount of the roll paper P can be accurately controlled. Based on detection information from a detection sensor (not shown), the roll paper P necessary for recording one image is pulled out from the paper cassette 11 and further conveyed downstream.

  On the downstream side of the roller pair R2, a thermal head 1 as recording means and a platen roller 2 at a position facing the thermal head 1 across the conveyance path of the roll paper P are provided. The thermal head 1 is configured substantially integrally with a mounting frame 14 having a rotation center and an elastic member (not shown), and is movable toward the platen roller 2 integrally with the mounting frame 14 by control of a cam gear (not shown). It is. Further, the ink ribbon cassette 10 is provided with a supply ink ribbon storage portion 10b for storing the ink ribbon 10a and a take-up ink ribbon storage portion 10c for winding the used ink ribbon 10a.

  The thermal head 1 includes a heating unit having a plurality of heat generating elements, selectively heats the heat generating elements according to recording information, and thermally transfers the ink uniformly applied on the ink ribbon 10a to the roll paper P. . Specifically, the thermal head 1 is pressed toward the platen roller 2, and the ink ribbon 10a unrolled from the supplied ink ribbon storage portion 10b and the roll paper P are pressed against each other at an appropriate pressure and an appropriate temperature. Thus, thermal transfer of the ink onto the roll paper P is enabled.

  On the downstream side of the thermal head 1 and the platen roller 2, there are provided a cutter movable blade 5 a and a cutter fixed blade 5 b at a position facing the cutter movable blade 5 a across the conveyance path of the roll paper P. And the cutter unit 5 is comprised by the cutter movable blade 5a and the cutter fixed blade 5b. The cutter movable blade 5a and the cutter fixed blade 5b are driven by a gear train (not shown), and the upper and lower blades are rubbed in a scissors shape to cut the roll paper P. In addition, although the scissor-shaped cutter unit 5 is shown as a cutting | disconnection means, the kind of cutting | disconnection means of this invention is not limited.

  Further, an optical detection sensor 9 is provided in the vicinity of the downstream side of the cutter unit 5 for detecting whether or not the cut roll paper P remains by detecting the presence or absence of the cut roll paper P. Yes.

  On the downstream side of the cutter unit 5, a conveyance roller 6, a driven roller 7 at a position facing the conveyance roller 6 across the conveyance path of the roll paper P, and the driven roller 7 are held and the driven roller 7 is conveyed to the conveyance roller 6. A roller holder 15 is provided to move toward and away from. The roller holder 15 has a rotating shaft 15b and an extruding portion 15a for extruding the cut roll paper P to a paper receiver 8 described later. Further, on the most downstream side, a paper receiver 8 for storing the cut roll paper P is provided.

  In this embodiment, when the recording of one image on the roll paper P is completed by the thermal head 1 and the ink ribbon 10a, the roll paper P is conveyed until the position to be cut of the roll paper P is located in the cutter unit 5. The In the middle of the process, the leading end of the roll paper P is sandwiched between a pair of rollers R <b> 3 including the conveyance roller 6 and the driven roller 7. If the roll paper P is slack or fluttered during the cutting operation, for example, the roll paper P is cut obliquely with respect to the width direction of the roll paper P, and the quality of the cut section of the roll paper P is degraded. . Therefore, the roller pair R3 is configured to suppress flapping of the roll paper P by applying an arbitrary tension to the roll paper P. Specifically, since an arbitrary tension is applied to the roll paper P, the transport speed of the roll paper P by the transport roller 6 is faster than the transport speed of the roll paper P by the capstan roller 3. Further, as described above, if the roller pair R3 pulls the roll paper P with a strong conveying force, the capstan roller 3 and the roll paper P are out of synchronization, and the roll paper P is at a position where the roll paper P is to be cut. It will not be cut. Therefore, in this embodiment, the nip pressure of the roller pair R3 is weaker than the nip pressure of the roller pair R2.

  Here, the roller holder 15 in the present embodiment will be described in more detail. 2A and 2B are external perspective views of the roller holder 15 of the present embodiment shown in FIG. The roller holder 15 has a width larger than the width of the largest roll paper P in the size to be used, has a substantially square shape, and is attached so that the driven roller 7 is rotatable. Yes. The rotation shaft 15b of the roller holder 15 is parallel to the width direction of the roll paper P (longitudinal direction in the thermal head 1). As shown in FIGS. 2A and 3B, the surface B of the roller holder 15 rotates from a position substantially perpendicular to the surface A of the cutter unit 5 around the rotation shaft 15 b as the rotation center. 2B and 3A, the roller holder 15 can be moved to a position where the surface B of the roller holder 15 and the surface A of the cutter unit 5 are substantially parallel. Further, the roller holder 15 is spaced from the driven roller 7, and conveys the roll paper P from a substantially lower surface side (non-recording surface side) to a substantially upper surface side (recording surface side) of the roll paper P conveyance path. It has an extruding portion 15a that goes around the side of the path and extrudes the cut roll paper P.

  The flow from recording on the recording medium to ejection of the recording medium will be described with reference to FIGS. Note that description of the same components as those described above is omitted.

  In the recording operation, the leading end of the roll paper P is passed downstream between the thermal head 1 and the platen roller 2, and the roll paper P reaches the downstream end of the thermal head 1 before the roll paper P reaches the downstream end. This is performed while P is transported in the upstream direction (the direction in which the roll paper P is stored). Recording is performed until the leading edge of the roll paper P passes between the thermal head 1 and the platen roller 2 and the leading edge of the roll paper P reaches the upstream end of the thermal head 1. The ink ribbon 10a covers the recording width of the roll paper P and is transported by the yellow (Y), magenta (M), and cyan (C) ink layers and the overcoat (OP) layer so as to be slightly larger than the width. They are arranged in order in the direction.

  As shown in FIG. 3A, at the time of recording, the mounting frame 14 rotates to a predetermined position, and the thermal head 1 and the platen roller 2 sandwich and press the roll paper P. At this time, the ink ribbon 10a and the roll paper P are pressure-bonded with an appropriate pressure by an unillustrated elastic member that presses the thermal head 1, so that heat transfer is possible. Further, in order to remove the slack of the roll paper P, the roll paper P is conveyed while being wound around the take-up bobbin 11a, and recording is performed during that time, and then the recording start position of the roll paper P is again downstream of the thermal head 1. The roll paper P is conveyed again until it reaches the side edge. When the roll paper P after recording is transported to the downstream side, the mounting frame 14 is rotated to retract the thermal head 1 configured integrally with the mounting frame 14 to a predetermined retracted position. Then, in synchronization with the rotation operation of the capstan roller 3 and the paper feed roller 12, the take-up bobbin 11a of the roll paper P rotates in the feeding direction, and the recording start position of the roll paper P is at the downstream end of the thermal head 1. Roll paper P is conveyed until it comes. In this way, recording is performed on the roll paper P by one ink layer of the ink ribbon 10a. The ink layer on which the thermal transfer of the ink ribbon 10a has been performed is accommodated in the take-up ink ribbon storage unit 10c, and the recording operation similar to the above is repeated sequentially for the remaining ink layers, and recording is performed on the roll paper P. Thus, a desired record can be obtained.

  Finally, it is determined that the recording operation is completed by ending the recording of the protective layer OP. At this time, the leading edge of the roll paper P passes through between the thermal head 1 and the platen roller 2 and is at a position moved upstream.

  The conveyance roller 6 is disposed above the recording surface of the roll paper P in the conveyance path of the roll paper P. Since the transport roller 6 is formed of a rubber roller, if the surface of the ink that has been thermally transferred before touching the OP, which is a protective layer, is touched for a long time, a part of the ink is peeled off and the transport roller 6 There is a risk of degrading the recording quality due to adhesion to rubber. Therefore, in the present embodiment, the transport roller 6 is configured to touch the surface of the roll paper P only when the attachment frame 14 is in the retracted position. In addition, the drive source for moving the roller pair R3 closer and away is the same as the drive source for rotating the mounting frame 14.

  As shown in FIG. 3B, when the recording operation on the roll paper P is completed, a motor (not shown) is actuated to rotate the mounting frame 14 and is fixed integrally with the mounting frame 14. 1 is moved to a predetermined retreat position. During such non-recording, the roller holder 15 operates in conjunction with the retracting operation of the mounting frame 14 so that the roller pair R3 is in pressure contact with the roll paper P.

  In the present embodiment, the roller pair R <b> 3 is brought into a pressure contact state with the roll paper P by moving to the retracted position of the attachment frame 14. Therefore, when recording is performed, that is, when the mounting frame 14 is in the pressure contact position, the transport roller 6 and the driven roller 7 are separated from each other, so that even if the OP is not recorded on the roll paper P, the surface of the roll paper P Ink does not adhere to the transport roller 6 and it is possible to prevent a decrease in recording quality. However, the larger the retracted amount of the mounting frame 14, the larger the required size of the entire recording apparatus. Therefore, it is preferable that the mounting frame 14 is not retracted by a certain amount by a cam gear or the like.

  While the roll paper P is being conveyed until the cutting position of the roll paper P reaches the cutter unit 5, the leading end of the roll paper P after the recording is already in the proximity position by moving the mounting frame 14 to the retracted position. To the roller pair R3 that has moved to the position. For the reason described above, since the transport speed of the roll paper P by the transport roller 6 is faster than the transport speed of the capstan roller 3, the slack and flutter of the roll paper P are removed as the transport distance increases. Then, after the roll paper P is sandwiched between the roller pair R3, the roll paper P is further transported in the paper discharge direction by the rotation of the capstan roller 3 and the transport roller 6, and the boundary between the recording area and the unrecorded area of the roll paper P is cut by the cutter. Stop at a position that matches the cutting position of the unit 5.

  Then, the cutter movable blade 5a of the cutter unit 5 is moved to the cutting position, and the roll paper P is cut. Hereinafter, the recorded roll paper P that has been cut into strips on the downstream side of the cutter unit 5 is called roll paper P2, and the unrecorded roll paper P that is on the upstream side of the cutter unit 5 is called roll paper P1. . After cutting, the roll paper P2 is sandwiched between the roller pair R3.

  In the prior art, after the cutting operation, the cutter movable blade 5a moved to the cutting position is returned to the position before cutting again. When such an operation is performed, as in the present embodiment, in the configuration in which the roll paper P2 is discharged substantially upward and the roller pair R3 is separated, the cut roll paper P2 falls downward from above by gravity. To do. Therefore, the cut roll paper P2 may flow back into the apparatus. Therefore, in this embodiment, the cutter movable blade 5a that has moved to the cutting position is not returned to the position before cutting, and the paper discharge operation is performed while maintaining this state. When the cutter movable blade 5a is maintained at the cutting position during the paper discharge operation, the cutter movable blade 5a blocks the conveyance path of the roll paper P between the inside and the outside of the apparatus. It is possible to prevent the backflow of the roll paper P2 to the front.

  As shown in FIG. 4A, when the roller holder 15 starts to rotate, the transport roller 6 and the driven roller 7 are separated from each other. Accordingly, the roll paper P2 is released from being held by the roller pair R3, and can be freely moved. At this time, the roll paper P2 receives a substantially downward force due to gravity. However, as described above, since the cutter movable blade 5a is located at the cutting position, that is, the position where the conveyance path of the roll paper P is interrupted, there is no possibility that the roll paper P2 flows back into the recording apparatus.

  4 (b) and 5 (a) show the movement of the roll paper P2 when the roller holder 15 is further rotated than in FIG. 4 (a). As the roller holder 15 further rotates, the end of the roll paper P2 on the cutter unit 5 side moves substantially downward due to gravity along the shape of the roller holder 15, and the roll paper P2 approaches the paper receiver 8. To go. Further, in FIG. 5B, the roll paper P <b> 2 is pushed out of the transport path of the roll paper P, specifically toward the paper receiver 8 by the push-out portion 15 a of the roller holder 15. At this time, since the roller holder 15 faces downward, the roller holder 15 functions as an inclined surface for guiding the roll paper P2 to the paper receiver 8.

  The roll paper P2 cut in this way is discharged and stacked on the paper receiver 8 as shown in FIG. 6, and the paper discharge operation is completed.

  At the same time as the above operation, the detection sensor 9 is used to detect whether the roll paper P2 has been discharged without any trouble. Specifically, immediately before the paper discharge operation, when the roller pair R3 is pressed against the roll paper P2 and holds the roll paper P2, the detection sensor 9 reacts to the roll paper P2 and the roll paper P2 is present. Is detected. From this point, when the roller pair R3 is separated by the paper discharge operation, the roll paper P2 is released and separated from the transport roller 6. Here, once again, the presence or absence of the roll paper P2 is determined by the detection sensor 9. At this time, when the state without the roll paper P2 is detected, the roll paper P2 is discharged to the paper receiver 8, and when the state with the roll paper P2 is detected, some trouble occurs and the roll paper P2 is the paper. It is determined that the sheet 8 is not discharged.

  After the paper discharge operation is completed, the unrecorded roll paper P1 is pulled out. When the next recording is not performed, the roll paper P1 is stored in the paper cassette 11, and the paper cassette 11 is detached. It must be possible. As shown in FIG. 6, when the discharge of the roll paper P2 is completed, the mounting frame 14 is moved to the press contact position, so that the thermal head 1 and the platen roller 2 sandwich the roll paper P1. When the attachment frame 14 is moved again to the retracted position, the thermal head 1 and the platen roller 2 are separated from each other, and the roll paper P1 sandwiched therebetween can be conveyed.

  Finally, as the roll paper P1 winding operation, the capstan roller 3, the paper feed roller 12, and the roll paper P winding bobbin 11a are rotated in the reverse conveyance direction, and the roll paper P1 is stored in the paper cassette 11. To do.

  As described above, by adopting the configuration of the present invention, it is possible to stably discharge the paper regardless of the presence or absence of slippage of the transport roller 6 while preventing the reverse flow of the cut roll paper P2. As a further effect, there is no problem even if the nip pressure of the roller pair R3 is weakened and the conveying force is reduced, so that the degree of freedom in design can be increased, for example, by setting the cutting performance as a priority. Further, since the roller holder 15 has a pushing portion 15a for pushing out the roll paper P2, a dedicated member or mechanism for discharging or dropping the roll paper P2 to the paper receiver 8 is not necessary. Does not increase in size or cost.

[Embodiment 2]
A second embodiment of the recording apparatus according to the present invention will be described. The description of the same components as those in the above embodiment is omitted.

  7 and 8 are schematic perspective views of the roller holder 15 of the second embodiment of the recording apparatus according to the present invention. The roller holder 15 is substantially U-shaped around the side of the roll paper P from the non-recording surface side of the transport path of the roll paper P to reach the recording surface side of the roll paper P. A driven roller 7 is attached so as to be rotatable at a position which is the most downstream side of the roller holder 15 and faces the transport roller 6 across the transport path of the roll paper P. Further, the rotation shaft 15b of the roller holder 15 is provided in a direction parallel to the conveyance direction of the recording medium, which is one of the substantially U-shaped end portions (position A in FIG. 7). The roller holder 15 can be rotated from a position parallel to the transport direction of the roll paper P to a vertical position. Further, it is spaced from the driven roller 7, is on the recording surface side of the roll paper P, and is provided with an extruding portion 15 a at the substantially U-shaped tip portion of the roller holder 15. When the roll paper P2 is sandwiched between the main body portion of the roller holder 15 and the extruding portion 15a at a certain distance, the roller holder 15 rotates and retracts vertically downward with respect to the conveyance path. The pushing part 15a pushes the roll paper P2 downward from above. At this time, the roller holder 15 also has a function of guiding the roll paper P2 downward.

  Other configurations are the same as those in the first embodiment.

  The flow of the discharge operation of the roll paper P2 by the roller holder 15 will be described with reference to FIGS. 9 to 10 are schematic views of a cross section in the vicinity of the roller holder 15. The operation until the roll paper P is cut is the same as that in the first embodiment.

  As shown in FIG. 9, when the roller holder 15 starts to rotate, the conveying roller 6 and the driven roller 7 are separated from each other. Along with this, the roll paper P2 is released from being held by the roller pair R3 composed of the conveying roller 6 and the driven roller 7, and can be freely moved. At this time, the side portion of the roll paper P2 slides down due to gravity along the surface of the roller holder 15 (near this drawing). Here, as described above, since the cutter movable blade 5a is in the cutting position, that is, the position where the conveyance path of the recording medium P is interrupted, there is no possibility that the roll paper P2 flows backward in the recording apparatus.

  FIG. 10A shows the movement of the roll paper P2 when the roller holder 15 is rotated further (the state of FIG. 8) than FIG. As the roller holder 15 further rotates, the roll paper P2 slides down along the surface of the roller holder 15 due to gravity. Further, as shown in FIG. 10B, as the roller holder 15 rotates, the pushing portion 15 a pushes the roll paper P <b> 2 downward while guiding it with the roller holder 15. Therefore, the roll paper P2 is stably sent to the paper receiver 8. As shown in FIG. 11, the roll paper P <b> 2 is sequentially stacked on the paper receiver 8.

  9 and 10A, only one section of the roll paper P2 is shown in order to clearly show the entire shape of the roller holder 15. For this reason, the roll paper P2 looks as if it is not in contact with the extruding portion 15a. However, the extruding portion 15a and the roll paper P2 are actually in contact with each other at a portion not shown.

  In the paper discharge operation, as in the first embodiment, the detection sensor 9 detects whether the roll paper P2 has been discharged without any problem.

  Also in the second embodiment, it is possible to obtain the same effect as that of the first embodiment described above.

  In each of the above embodiments, the case where the present invention is applied to a thermal transfer type recording apparatus has been exemplified. However, the present invention can be similarly applied to recording apparatuses of other recording systems including a recording medium discharging apparatus. It is.

5 Cutter Unit 6 Conveying Roller 7 Driven Roller 15 Roller Holder 15a Extrusion Port P Roll Paper R3 Roller Pair of Conveying Roller and Followed Roller

Claims (8)

  A cutter unit for cutting the recording medium; a downstream roller located on the downstream side of the cutter unit; and a driven roller provided on a roller holder and facing the conveying roller across the recording medium. The roller holder includes a push-out unit for pushing the recorded and cut recording medium out of the conveyance path, and further, the driven roller A recording apparatus that is movable between a position close to the conveying roller and a position separated from the conveying roller.   The recording apparatus according to claim 1, wherein the roller holder has a rotation shaft extending in parallel with a conveyance direction of the recording medium or extending in a width direction of the recording medium.   A mounting frame provided with a thermal head for recording and the roller holder operate in synchronization, and when the thermal head is not at a position away from the recording medium, the roller holder is moved by the driven roller. 3. The recording apparatus according to claim 1, wherein the roller holder separates the driven roller from the conveyance roller during recording when the thermal head is in a position close to the recording medium.   The roller holder is provided with the driven roller and the extruding portion spaced apart from each other. When the driven roller and the conveying roller are close to each other via the recording medium, the extruding portion and the recording unit are arranged. The recording apparatus according to claim 1, wherein when the medium is separated and the driven roller and the transport roller are separated from each other, the pushing unit pushes the recording medium out of the transport path.   A cutter unit composed of a cutter movable blade and a cutter fixed blade for cutting the recording medium, and a conveyance roller and a roller holder on the downstream side of the cutter unit, and the conveyance roller sandwiching the recording medium A recording medium conveying method in a recording apparatus having at least a roller pair composed of a driven roller at a position facing the recording medium. When the recording medium is conveyed by rotation of the conveying roller, the driven roller is moved to the recording medium. The roller holder is moved close to the conveying roller to move the driven roller away from the conveying roller, and the recording medium is moved out of the conveying path by the pushing portion provided in the roller holder. A method for conveying a recording medium to be extruded.   The method for conveying a recording medium according to claim 5, wherein the cutter movable blade is maintained at a position where the recording medium is cut after the recording medium is cut.   When cutting the recording medium, the roller holder is moved to a position where the driven roller and the transport roller are close to each other, and after the recording medium is cut, the driven roller and the transport roller are separated from each other. The method of transporting a recording medium according to claim 5 or 6, wherein the recording medium is moved to a position and the cut recording medium is pushed out of the transport path by the push-out unit.   A mounting frame provided with a thermal head for recording and the roller holder are operated synchronously, and the thermal head is moved away from the recording medium. The driven roller is moved to a position close to the transport roller, and during recording when the thermal head is moved to a position in contact with the recording medium, the roller holder moves the driven roller to a position away from the transport roller. The method for conveying a recording medium according to claim 5.

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