JP2007255571A - Power transmission switching device, recording device, and liquid injection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power transmission switching device capable of shutting off transmission of power to a passive gear while a sun gear to be driven and rotated forward is driven without driving and rotating the sun gear reversely. <P>SOLUTION: This power transmission switching device 400 is provided with a planetary gear holder part 420 holding two planetary gears 423, 424 rotatably and provided so as to turn freely by using a rotating shaft 425 of the sun gear 426 as a fulcrum and a lock member 410 capable of being abutted on the planetary gear holder part 420. The lock member 410 is constituted so as to engage with the planetary gear holder part 420, turn the planetary gear holder part 420 up to a position where neither of two planetary gears 423, 424 are circumscribed about a gear 211 to which power is transmitted, and lock the planetary gear holder part 420. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention includes a sun gear provided on the upstream side in the power transmission direction, two planetary gears circumscribing the sun gear and transmitting power downstream in the power transmission direction, and circumscribing one of the planetary gears to transmit power. The present invention relates to a power transmission switching device including a driven transmission gear, a recording device including the power transmission switching device, and a liquid ejecting apparatus including the power transmission switching device.

  Here, the liquid ejecting apparatus refers to an ink jet recording apparatus, a copying machine, a facsimile, or the like that performs recording on a recording material by ejecting ink from a recording head as a liquid ejecting head to a recording material such as recording paper. In addition to the recording apparatus, instead of ink, a liquid corresponding to a specific application is ejected from the liquid ejecting head corresponding to the recording head to the ejected material corresponding to the recording material, and the liquid is ejected to the ejected material. Used to include the device to be attached. In addition to the recording head described above, the liquid ejecting head includes a color material ejecting head used for manufacturing a color filter such as a liquid crystal display, an electrode material used for forming an electrode such as an organic EL display and a surface emitting display (FED) ( Examples thereof include a conductive paste) ejection head, a bio-organic matter ejection head used for biochip manufacturing, and a sample ejection head that ejects a sample as a precision pipette.

In the prior art, as shown in Patent Document 1, there is a power transmission switching device in which one planetary gear is provided for one sun gear.
FIG. 30 shows a power transmission switching device as an example of the prior art.
As shown in FIG. 30, the conventional power transmission switching device 900 includes a sun gear 901, a planetary gear 902, a planetary lever 903 that holds the planetary gear 902 and swings around a rotation shaft 907 of the sun gear 901. It has. Further, the planetary lever 903 is provided so as to be swingable in the rotation direction of the sun gear 901 with the rotation shaft 907 of the sun gear 901 as a fulcrum by the rotation of the sun gear 901. A first passive gear 904 on the first device side and a second passive gear 905 on the second device side are provided on the downstream side in the power transmission direction that can circumscribe the swinging planetary gear 902. Specifically, when the sun gear 901 rotates in the clockwise direction, the planetary gear 902 and the planetary lever 903 swing in the clockwise direction with the rotation shaft 907 of the sun gear 901 as a fulcrum by receiving the power of the sun gear 901. . The planetary gear 902 circumscribes the first passive gear 904. At this time, the planetary gear 902 rotates counterclockwise by the power of the sun gear 901, and the first passive gear 904 rotates clockwise by receiving the power of the planetary gear 902.
On the other hand, when the sun gear 901 rotates counterclockwise, the planetary gear 902 and the planetary lever 903 are swung counterclockwise about the rotation shaft 907 of the sun gear 901 by receiving the power of the sun gear 901. The planetary gear 902 circumscribes the second passive gear 905. At this time, the planetary gear 902 is rotated clockwise by the power of the sun gear 901, and the second passive gear 905 is rotated counterclockwise by the power of the planetary gear 902.

In order to maintain the state in which power is transmitted from the sun gear 901 to the first passive gear 904 and the second passive gear 905 via the planetary gear 902, the rotation of the sun gear 901 is performed in the state in which the power is transmitted. The position of a planetary lever 903 that is swingably provided on a moving shaft 907 and holds a planetary gear 902 is locked by a locking means 906. Specifically, the position of the planetary lever 903 is locked by engaging the projection 906b with the recess 906a provided in the planetary lever 903.
On the other hand, when switching power transmission, for example, when switching from the first device side to the second device side, after releasing the locking means 906, the rotation direction of the sun gear 901 is switched from clockwise to counterclockwise. Then, as described above, the planetary gear 902 circumscribing the first passive gear 904 is separated from the first passive gear 904 and circumscribes the second passive gear 905. Accordingly, the planetary gear 902 transmits the power of the sun gear 901 to the second passive gear 905. In order to maintain this state, the position of the planetary lever 903 is locked by the locking means 906.

JP 2000-266155 A

  However, in the prior art, since the power of the sun gear 901 is transmitted to the passive gear and is configured to lock the position of the planetary gear 902, the power transmission to the passive gear is cut off while the sun gear 901 is driven. I couldn't. Here, in order to cut off the power transmission during driving, it is necessary to separate the planetary gear 902 from the passive gear. Therefore, it has been necessary to reversely drive the sun gear 901 that is upstream in the power transmission direction. Then, there is a possibility that the reverse drive of the sun gear 901 for separating the planetary gear 902 from the passive gear is transmitted to the passive gear. That is, there is a possibility that the rotation of the passive gear cannot be accurately controlled.

  The present invention has been made in view of such a situation, and a problem thereof is that a power transmission switching device capable of cutting off power transmission to a passive gear even when the sun gear is being driven, the power It is an object of the present invention to provide a recording apparatus including a transmission switching device and a liquid ejecting apparatus including the power transmission switching device.

  In order to achieve the above object, a first aspect of the present invention includes a sun gear provided on the upstream side in the power transmission direction, and two planetary gears that circumscribe the sun gear and transmit power downstream in the power transmission direction. A power transmission switching device comprising a driven transmission gear that circumscribes one of the planetary gears and transmits power, the two planetary gears being rotatably held, and a rotating shaft of the sun gear being a fulcrum A planetary gear holder part rotatably provided on the planetary gear holder part, and a lock member that can contact the planetary gear holder part. The lock member engages with the planetary gear holder part to connect the planetary gear holder part to the 2nd planetary gear holder part. Any one of the planetary gears is configured to rotate and lock to a position not circumscribing the driven transmission gear.

  According to the first aspect of the present invention, the lock member engages with the planetary gear holder part to move the planetary gear holder part to a position where neither of the two planetary gears circumscribes the driven transmission gear. It is configured to rotate and lock. Therefore, even when the sun gear is being driven, the power transmission to the driven gear can be cut off. Further, it is possible to cut the power transmission from the planetary gear to the driven transmission gear without driving the sun gear on the upstream side in the power transmission direction in reverse.

  According to a second aspect of the present invention, in the first aspect, the lock member includes an opening that is long in one direction through which the rotation shaft of the sun gear is inserted, and the lock member in the longitudinal direction of the opening. A contact portion provided at an end of the planetary gear, and the contact portion is intermediate between the support portions of the two planetary gears in the planetary gear holder portion, and is in contact with and engaged with each of the two support portions. In addition, the planetary gear holder portion is configured to be restricted in posture.

  According to the second aspect of the present invention, in addition to the same effect as the first aspect, the lock member has an opening that is long in one direction through which the rotation shaft of the sun gear is inserted, and the opening. A contact portion provided at an end portion of the lock member in the longitudinal direction of the portion, and the contact portion is intermediate between the support portions of the two planetary gears in the planetary gear holder portion. It is configured to regulate the attitude of the planetary gear holder part by contacting and engaging with each of the parts. That is, the lock member is configured to move the contact portion toward and away from the rotation axis of the sun gear and to swing at the same fulcrum as the rotation fulcrum of the planetary gear holder portion. Yes. Therefore, the lock member can abut the abutment portion on the two support shafts and can regulate the attitude of the planetary gear holder portion with high accuracy relative to the attitude of the lock member. That is, the position of the planetary gear holder portion where neither of the two planetary gears circumscribes the driven transmission gear can be accurately determined by the attitude of the lock member. Furthermore, the state in which the lock member locks the planetary gear holder portion is stable because the lock member can regulate the planetary gear holder portion with relatively high accuracy. That is, even when an unexpected external force is applied, there is no possibility that the locked state is released.

  According to a third aspect of the present invention, in the first or second aspect, the lock member includes a connection portion on a side opposite to the side on which the contact portion is provided, and the connection portion slides back and forth. It is characterized in that it is pivotably connected to a member.

According to the third aspect of the present invention, in addition to the same effect as the first or second aspect, the lock member includes a connecting portion on the side opposite to the side on which the abutting portion is provided, The connecting portion is rotatably connected to a slide member that reciprocates. Therefore, the position of the locking member can be easily controlled by controlling the position of the slide member. That is, when the lock member is controlled indirectly by controlling the slide member as compared with the case where the lock member that swings and moves away is directly controlled, only the reciprocation of the slide member is performed. Since it only has to be taken into consideration, control is easy.
The slide member is effective when the force direction of the power source of the lock member is different from the moving direction of the lock member.

According to a fourth aspect of the present invention, there is provided a recording apparatus that records ink on a first medium and a second medium by ejecting ink from a recording head provided in a recording unit. A motor serving as a power source for a discharge drive roller that moves the medium of 2 in the transport direction, and a first position at which the recorded first medium is stacked using the drive force of the motor, And a discharge stacker lifting / lowering device that guides the first medium and the second medium to a recording unit and moves the first medium and the second medium to a second position for receiving the recorded first medium and second medium. A power transmission switching device that switches transmission of power from the motor to the discharge stacker lifting device, and the power transmission switching device according to any one of the first to third aspects. Having And features.
In the present specification, “first medium” refers to “non-rigid medium” as an example, and “second medium” refers to “rigid medium” as an example.
Here, the “non-rigid medium” refers to a flexible medium such as paper or an OHP sheet. The “rigid medium” refers to a medium having little flexibility such as a dedicated CD-R tray with a CD-R attached.

  According to a fourth aspect of the present invention, the power transmission switching device of the recording apparatus includes the power transmission switching device according to any one of the first to third aspects. Therefore, in the recording apparatus, it is possible to obtain the same operational effects as the operational effects of any one of the first to third aspects.

  According to a fifth aspect of the present invention, there is provided a liquid ejecting apparatus that ejects liquid from a liquid ejecting head provided in a liquid ejecting unit to a first medium and a second medium, the first medium ejecting the liquid And a motor that is a power source of a discharge drive roller that moves the second medium in the transport direction, and a discharge stacker that uses the driving force of the motor to stack the first medium on which the liquid is ejected. 1 position, and a second position for guiding the first medium and the second medium to the liquid ejecting unit and receiving the first medium and the second medium from which the liquid is ejected, A discharge stacker lifting device to be moved, and a power transmission switching device for switching transmission of power from the motor to the discharge stacker lifting device, wherein the power transmission switching device is any one of the first to third aspects. Power transmission cut off Characterized in that it comprises e device.

  According to the fifth aspect of the present invention, the power transmission switching device of the liquid ejecting apparatus includes the power transmission switching device according to any one of the first to third aspects. Therefore, in the liquid ejecting apparatus, it is possible to obtain the same operational effects as the operational effects of any one of the first to third aspects.

  Hereinafter, a discharge stacker lifting apparatus according to the present invention and a recording apparatus which is an example of a liquid ejecting apparatus to which the discharge stacker lifting apparatus is applied will be described. First, an ink jet printer 100 is taken up as the best mode for carrying out a liquid ejecting apparatus of the present invention and a recording apparatus as an example thereof, and an outline of the entire configuration will be described with reference to the drawings.

  FIG. 1 is a perspective view showing the appearance of an ink jet printer, and FIG. 2 is a perspective view showing the internal structure of the ink jet printer with the housing removed. FIG. 3 is a side sectional view showing an outline of the internal structure of the ink jet printer.

  As shown in FIG. 1, the ink jet printer 100 described here includes a liquid ejecting apparatus main body and a scanner device 4 above a printer main body 3 which is an example of a recording apparatus main body. A liquid crystal monitor screen 7 is provided at the center of the front panel 6 of the printer body 3, and operation buttons 8 are provided on the left and right sides thereof. A memory card insertion portion 9 for inserting a memory card or the like on which photograph data taken with a digital camera is recorded is provided at the lower center portion of the front panel 6. The ink jet printer 100 of this type is a relatively compact ink jet printer having a composite function that can directly perform recording without using a personal computer and can also be used as a copier.

  In addition, a feeding cassette 30 is provided at the lower front portion of the printer body 3 so as to be detachable in the front-rear direction. A discharge stacker 50 that also functions as a part of the front cover of the printer main body 3 when not in use is provided at the upper portion of the feeding cassette 30 as shown by a solid line in FIG. In addition, the stacker 50 for discharge is used in a posture in which the stacking surface 51 faces upward as shown in a virtual line in FIG. Further, the liquid crystal monitor screen 7, a part of the operation buttons 8 and the memory card insertion portion 9 are parts used when recording is performed directly without being connected to a personal computer. That is, by inserting a memory card (not shown) into the memory card insertion portion 9 and operating the operation button 8 while looking at the liquid crystal monitor screen 7, it is possible to easily print any number of desired photos with high quality while at home. Can be done.

  Further, an automatic feeding device capable of automatically feeding a recording material P (hereinafter also simply referred to as a sheet P), which is an example of a liquid ejecting material, to the upper portion on the back side of the printer body 3 automatically. 2 is provided. The automatic feeding device 2 includes a feeding tray 5 on which a plurality of sheets P can be stacked, a hopper 16 that pushes the sheets P on the feeding tray 5 toward the feeding roller 14, The feeding roller 14 that picks up the upper sheet P on the feeding tray 5 by the nipping pressure feeding action, and the succeeding sheet P that has been double fed so that only the uppermost sheet P is fed A non-illustrated retard roller or separation pad, which is an example of a separation action unit that separates the upper paper P, and a return lever (not shown) for returning the separated subsequent paper P onto the feeding tray 5 are provided. .

  Next, an outline of the internal structure of the inkjet printer 100 will be described according to the conveyance path of the paper P. The feeding tray 5 is provided on the most upstream side in the transport direction, and is an example of a liquid injection material stacking unit that stacks a plurality of sheets P. The feeding tray 5 is provided with an edge guide 15 that abuts on the side edge (edge) of the paper P and guides smooth conveyance in the sub-scanning direction Y that is the conveyance direction of the paper P. With the rotation of the rotating shaft 17 of the feeding roller 14, the hopper 16 rises at a predetermined timing and is pushed up toward the feeding roller 14 on the paper P on the feeding tray 5. Then, the sheet P receives a separating force from a retard roller (not shown) that is a separating action portion provided in the vicinity of the feeding roller 14 in order from the sheet P positioned on the uppermost surface as the feeding roller 14 rotates. Are picked up in units and fed downstream in the transport direction.

  Downstream of the feeding roller 14, a recording material detection unit (not shown) (hereinafter simply referred to as a detection lever) that is an example of a liquid ejection material detection unit that detects the passage of the paper P is provided. A transport roller 19 including a transport drive roller 19a and a transport driven roller 19b is provided downstream of the detection lever. Of these, the driven roller 19b for conveyance is pivotally supported at the downstream end of the roller holder 18, and the roller holder 18 is in a nip state in which the driven roller 19b for conveyance is always in pressure contact with the driving roller 19a for conveyance by a torsion coil spring (not shown). It is urged to turn.

  Then, the sheet P conveyed while being pinched by the conveying roller 19 is guided to the recording position 26, and the recording execution unit is an example of a liquid jet execution unit that performs recording on the sheet P at the recording position 26. A carriage 10 is provided as a main component. The carriage 10 is supported by a carriage guide shaft 12 so as to be reciprocally movable in the main scanning direction X, and is reciprocated by an endless belt 11. A recording head 13, which is an example of a liquid ejecting head that performs recording by ejecting (ejecting) ink, which is an example of liquid, onto the paper P or the like is mounted on the lower surface of the carriage 10. An ink cartridge C, which is an example of a liquid cartridge, is inserted into the carriage 10.

  A platen 28 that defines the gap PG between the head surface of the recording head 13 and the paper P or the like is provided below the recording head 13 so as to face the recording head 13. Then, between the recording head 13 and the platen 28, the sheet P or the like is transported by a predetermined transport amount in the sub-scanning direction Y orthogonal to the main scanning direction X, and the recording head 13 is reciprocated once in the main scanning direction X. By repeating the operation of ejecting ink from the recording head 13 onto the paper P or the like during the operation, desired recording is performed over almost the entire recording surface of the paper P or the like. Note that the gap PG is an extremely important element in executing high-precision recording, and is appropriately adjusted according to a change in the thickness of the paper P or the like.

  Disposed downstream of the recording head 13 is a discharge roller 20 that is an example of a liquid ejecting material discharge unit including a discharge drive roller 20a and a plurality of first discharge driven rollers 20b, 20b,. ing. Further, a plurality of discharge auxiliary driven rollers 22, 22,... Are provided upstream of the first discharge driven rollers 20 b, 20 b,. Then, the paper P discharged by the discharge roller 20 is discharged onto the placement surface 51 on the discharge stacker 50, which is an example of the liquid injection material receiving portion positioned further downstream in the transport direction. ing.

  The first discharge driven rollers 20b, 20b,... And the discharge auxiliary driven rollers 22, 22,... Are toothed rollers having a plurality of teeth on the outer periphery thereof, and can be freely rotated by a roller holder that holds each of them. Is pivotally supported. The transport driven roller 19b is disposed such that its axial center is located somewhat downstream in the transport direction with respect to the transport drive roller 19a, and the first discharge driven rollers 20b, 20b,. Are arranged so that the axial center position is located somewhat upstream in the conveying direction from the discharge driving roller 20a. By adopting such an arrangement, the sheet P is formed in a curved state called “reverse sled” that slightly protrudes downward between the transport roller 19 and the discharge roller 20. . As a result, the sheet P located at the position facing the recording head 13 is pressed against the platen 28, and the sheet P is prevented from being lifted, so that the recording is executed normally.

[Example]
Next, the discharge stacker lifting / lowering device of the present invention provided for such an ink jet printer 100 will be specifically described with reference to the drawings.
4 to 6 are front perspective views showing the discharge stacker lifting device of the present invention. 4 shows a state where the first discharge stacker in the paper recording mode is at the first position, and FIG. 5 shows a state where the first discharge stacker in the CD-R recording mode is at the second position. FIG. 6 shows a state in which the CD-R tray is set in FIG.

As shown in FIGS. 4 to 6, the discharge unit 120 that discharges the paper and the like of the recording apparatus 100 is provided with a discharge stacker elevating device 200, and the discharge stacker elevating device 200 is a paper recording mode for recording the paper P. And a CD-R recording mode for recording a CD-R label. The recording mode is switched so that the user can switch the recording mode by operating the operation button 8. When the recording mode is switched, the first discharge stacker 500 provided in the discharge stacker elevating device 200 is moved to the first position and the second position by the motor of the power source of the discharge drive roller 20a. Has been. The movement of the first discharge stacker 500 will be described in detail later. First, the first position and the second position will be described.
The recording mode may be switched so that the control unit determines and switches the recording mode when the recording information data is sent to a control unit (not shown).
4 to 6, the right side in the X direction in the drawings is the one digit side, and the left side is the 80 digit side.

  As shown in FIG. 4, the discharge stacker 50 includes a first discharge stacker 500 on the upstream side in the transport direction that is the sub-scanning direction Y, and a second discharge stacker 600 on the downstream side. The second discharge stacker 600 is configured to open and close a placement opening 260 provided on the front surface of the recording apparatus 100, and the state shown in FIG. 4 is an open state. When the recorded paper P is discharged by the discharge roller 20 in the paper recording mode, the paper P is discharged from the first loading unit 510 of the first discharge stacker 500 and the second discharge stacker 600 as the mounting surface 51. It is placed on the upper surface of the second placement unit 610. At this time, the downstream end in the transport direction of the first discharge stacker 500 is configured to be higher than the upstream end of the second discharge stacker 600. Therefore, there is no possibility that the leading end of the paper P, that is, the downstream end in the transport direction, is caught in the gap between the first discharge stacker 500 and the second discharge stacker 600, that is, so-called paper jam.

  As shown in FIG. 5, in the CD-R recording mode, the first discharge stacker 500 moves to above the second discharge stacker 600 on the downstream side in the transport direction. This position is the second position of the first discharge stacker 500. The first discharge stacker 500 has a CD-R tray guide opening 522 on the downstream side in the transport direction of the first loading unit 510, and a lower surface in the CD-R tray guide opening and a CD-R tray Q (see FIG. 6). CD-R tray guide surface 523 which is a medium guide surface for guiding the image in the transport direction (Y). In the second position, the CD-R tray guide surface 523 is parallel to the transport direction (Y) and the main scanning direction X, and has the same height as the upper positions of the ejection drive roller 20a and the platen 28. It is provided to become.

As shown in FIG. 6, when switched to the CD-R recording mode, the first discharge stacker 500 moves to the second position. Then, the user attaches the CD-R to be recorded on the label to the dedicated CD-R tray Q, inserts the CD-R tray Q into the CD-R tray guide opening 522 of the first discharge stacker 500, and sets it. When set, the CD-R tray Q is sandwiched between the discharge drive roller 20a and second discharge driven rollers 503 and 503 (see FIGS. 10 to 22) described later. Thereafter, the paper is sent upstream in the transport direction by the reverse drive of the discharge driving roller 20a. Then, the downstream end in the transport direction of the CD-R attached to the CD-R tray Q stops at a position facing the recording head 13, that is, a so-called recording start position. At this time, on the upstream side of the CD-R tray Q, the conveyance roller 19a is in contact with the label surface of the CD-R to prevent the data stored in the CD-R from being damaged. 19 so as not to be sandwiched between the two.
The ejection drive roller 20a and the second ejection driven rollers 503 and 503 do not directly sandwich the CD-R, but 2 so as to sandwich the vicinity of both sides in the main scanning direction of the CD-R tray main body (Q). One is provided. Therefore, there is no possibility of damaging the data information stored on the CD-R. Further, in order to improve the conveyance accuracy of the CD-R tray, not only the ejection drive roller 20a and the second ejection driven rollers 503 and 503 but also the conveyance roller 19 carries the CD-R tray while sandwiching it. Of course, you may comprise.

  Thereafter, the ejection drive roller 20a is driven to rotate in the forward direction, and the recording head 13 is scanned in the main scanning direction X while the CD-R tray Q is moved downstream in the transport direction, and recording is performed on the CD-R label. To do. When the recording is completed, the discharge driving roller 20a and the second discharge driven rollers 503 and 503 cooperate to discharge the CD-R tray Q to the downstream side in the transport direction. At this time, the upstream end in the transport direction of the CD-R tray Q is disengaged from the nip between the ejection drive roller 20a and the second ejection driven rollers 503 and 503, so that the CD-R tray Q is again in the CD as shown in FIG. -Stops at a position where the CD-R tray Q protrudes further than a position where a part of the CD-R tray Q protrudes from the R tray guide opening 522.

In the CD-R recording mode, the first discharge stacker 500 provided with the CD-R tray guide opening 522 moves to the downstream side in the transport direction, so that the user can easily set the CD-R tray Q. . Further, after recording, the user can easily take out the CD-R tray Q. At this time, since a part of the CD-R tray Q protrudes from the CD-R tray guide opening 522, the CD-R tray Q can be taken out more easily.
Further, since the first discharge stacker 500 moves downstream in the transport direction, it is possible to support the center of gravity of the CD-R tray Q. Therefore, the posture of the CD-R tray Q can be stabilized.

[About PG switching and recording mode switching]
FIG. 7 to FIG. 9 are schematic side views showing power transmission to the discharge stacker lifting device according to the present invention. Of these, FIG. 7 shows a state in which the power is cut off. FIG. 8 shows a state in which power is transmitted in the reverse rotation state of the discharge drive roller, and FIG. 9 shows a state in which power is transmitted in the forward rotation state of the discharge drive roller.

  As shown in FIG. 7, the recording apparatus 100 includes a recording unit gap adjusting device 300 that can adjust the distance between the recording head 13 provided in the recording unit 110 and the platen 28 according to the thickness of the paper and the like. In order to guide and receive the CD-R tray Q when recording a label, the power of the discharge stacker elevating device 200 that moves the first discharge stacker 500 and the power of the discharge drive roller 20a is transmitted to the discharge stacker elevating device 200. A power transmission switching device 400 that switches between the two is provided.

Among these, the recording unit gap adjusting device 300 includes a cam shaft 302 that is rotated by a PG adjusting motor that is a second motor (not shown), and a carriage guide that is provided so as to be eccentric with respect to the rotation fulcrum of the cam shaft 302. The shaft 12 includes a PG adjustment cam portion 301 provided on the cam shaft 302, and a lever member 304 that constantly biases the PG adjustment cam portion 301 by a torsion coil spring (not shown).
Further, the discharge stacker lifting / lowering device 200 includes a base portion 220, power transmission means 210 for transmitting power transmitted from the power transmission switching device 400 to the first discharge stacker 500, and a first position and a second position. And a first discharge stacker 500 that moves between them.

Furthermore, the power transmission switching device 400 is provided coaxially with the discharge drive roller 20a rotated by the first motor, and rotates integrally with the sun gear 426, the first planetary gear 423 circumscribing the sun gear 426, and A second planetary gear 424, a planetary gear holder 420 that holds the first planetary gear 423 and the second planetary gear 424, and swings freely around the pivot fulcrum shaft 425 of the sun gear 426; A first gear 211 that receives power from the gear 423 and the second planetary gear 424 and a lock lever 410 as a lock member that regulates the attitude of the planetary gear holder portion 420 are provided.
Here, the first motor is configured to also rotate the transport driving roller 19a and the feeding roller 14.

  The recording head 13 is provided on the carriage 10 that moves in the main scanning direction X by the carriage guide shaft 12. If there is a change in the thickness of the paper P or a change from the paper recording mode for recording the paper P to the CD-R recording mode for recording the CD-R label surface, the cam is driven by a PG adjustment motor (second motor) (not shown). The shaft 302 rotates. At this time, the carriage guide shaft 12 is eccentric with respect to the cam shaft 302. Accordingly, the recording unit gap adjusting device 300 can adjust a so-called platen gap or paper gap (hereinafter referred to as PG), which is the interval between the recording head 13 and the platen 28, by the rotation of the cam shaft 302. .

  Further, the cam shaft 302 is provided with a PG adjustment cam portion 301. A lever abutting portion 303 of a lever member 304 urged clockwise with a lever shaft 305 as a fulcrum by a torsion coil spring (not shown) is provided so as to abut and press against the PG adjustment cam portion 301. ing. At this time, the PG adjustment is performed by rotating the cam shaft 302 within a range in which the arc portion 301 a of the PG adjustment cam portion 301 contacts the lever contact portion 303. Then, when switching between the paper recording mode and the CD-R recording mode, the cam shaft 302 is rotated so that the chord portion 301b of the PG adjustment cam portion 301 faces the lever contact portion 303, which will be described later. The power transmission switching device 400 is configured to be switched.

  One side of the lever member 304 opposite to the side on which the lever contact portion 303 is provided rotates with one end of a slide bar 430 as a slide member that reciprocates in the horizontal direction by a bar guide 431 provided on the base body 220. It is connected freely. On the other hand, the other end of the slide bar 430 is rotatably connected to one end of the lock lever 410.

  As described above, the sun gear 426 is provided to rotate by the rotation of the discharge drive roller 20a. The planetary gear holder 420 holding the first planetary gear 423 and the second planetary gear 424 by the rotation of the sun gear 426 tries to rotate in the same direction as the rotation direction of the sun gear 426, but the lock lever The posture is regulated by 410. Then, both the first planetary gear 423 and the second planetary gear 424 are separated from the first gear 211. Therefore, the power of the sun gear 426 is not transmitted to the first gear 211.

  Here, the planetary gear holder unit 420 may be configured to rotate in the same direction as the sun gear 426 by a frictional resistance generated between the planetary gear holder unit 420 and the rotation fulcrum shaft 425. Further, it may be configured to rotate in the same direction as the sun gear 426 by a frictional resistance generated between the first planetary gear 423 and the second planetary gear 424 and the planetary gear holder portion 420.

[Switching from paper recording mode to CD-R recording mode]
As shown in FIG. 8, when the camshaft 302 is rotated clockwise and the string portion 301b is opposed to the lever contact portion 303, the lever member 304 is rotated clockwise. Then, the slide bar 430 moves to the left side in the figure. Further, as the slide bar 430 moves to the left side, the lock lever 410 moves, so that the planetary gear holder portion 420 is released from the restriction of the lock lever 410. Therefore, the planetary gear holder 420 generates a force that rotates in the rotating direction of the sun gear 426. At this time, the discharge drive roller 20a is rotated in the counterclockwise direction in the figure, which is the reverse direction in which the paper P can be moved upstream. The sun gear 426 is provided so as to rotate in the same direction as the discharge drive roller 20a. Accordingly, the planetary gear holder portion 420 rotates counterclockwise about the rotation fulcrum shaft 425 of the sun gear 426 so that the second planetary gear 424 contacts the first gear 211. That is, the power of the sun gear 426 is transmitted to the first gear 211 via the second planetary gear 424. At this time, since the second planetary gear 424 contacts the first gear 211 while rotating clockwise, the first gear 211 rotates counterclockwise.

  The power transmission means 210 of the discharge stacker lifting / lowering device 200 is provided integrally with a first gear 211, a second gear 212 circumscribing the first gear 211, a third gear 213 circumscribing the second gear 212, and a third gear 213. The fourth gear 214, the fifth gear 215 circumscribing the fourth gear 214, the sixth gear 216 circumscribing the fifth gear 215, the seventh gear 217 and the seventh gear 217 provided integrally with the sixth gear 216; A circumscribed eighth gear 218, a pinion 219 provided integrally with the eighth gear 218, and a rack 227 that receives power from the pinion 219 are provided.

  A pair of fifth gear 215, sixth gear 216, seventh gear 217, eighth gear 218, pinion 219, and rack 227 is provided in the width direction with respect to the transport direction (Y), that is, on both the left and right sides in the main scanning direction. It has been. The pair of left and right fifth gears 215 are provided to rotate synchronously by the power transmission shaft 270. Accordingly, the sixth gear 216, the seventh gear 217, the eighth gear 218, the pinion 219, and the rack 227 that are provided in a pair can rotate synchronously. Since synchronous rotation is performed on both the left and right sides, in the following description, only one side will be described, and the other description will be omitted.

  When the first gear 211 rotates counterclockwise, power is transmitted to the second gear 212 and the second gear 212 rotates clockwise. The power of the second gear 212 is transmitted to the third gear 213, and the third gear 213 rotates counterclockwise. Since the fourth gear 214 is provided integrally with the third gear 213, it rotates counterclockwise together with the third gear 213. The power of the fourth gear 214 is transmitted to the fifth gear 215, and the fifth gear 215 rotates clockwise. The power of the fifth gear 215 is transmitted to the sixth gear 216, and the sixth gear 216 rotates counterclockwise. Since the seventh gear 217 is provided integrally with the sixth gear 216, the seventh gear 217 rotates counterclockwise integrally with the sixth gear 216. The power of the seventh gear 217 is transmitted to the eighth gear 218, and the eighth gear 218 rotates clockwise. Since the pinion 219 is provided integrally with the eighth gear 218, the pinion 219 rotates clockwise together with the eighth gear 218.

  When the pinion 219 rotates in the clockwise direction, the pinion 219 is provided to move the first discharge stacker 500 from the first position to the second position via the rack 227 provided on the first discharge stacker side. It has been. When the first discharge stacker 500 finishes moving to the second position, the cam shaft 302 rotates counterclockwise until the arc portion 301a and the lever contact portion 303 come into contact with each other, and the lever member 304 is rotated. Is rotated counterclockwise until the state shown in FIG. At this time, the cam shaft 302 rotates so that the PG is in the CD-R recording mode.

[Switching from CD-R recording mode to paper recording mode]
On the other hand, when switching from the CD-R recording mode to the paper recording mode, the cam shaft 302 rotates clockwise from the state shown in FIG. 7, and the lever member 304 rotates clockwise to the position shown in FIG. Then, as described above, the planetary gear holder portion 420 is released from the restriction of the lock lever 410.
At this time, as shown in FIG. 9, the discharge drive roller 20a is rotated in the clockwise direction in the figure, which is the normal rotation direction in which the paper P can be moved downstream. Therefore, as described above, the sun gear 426 also rotates in the clockwise direction, which is the same direction as the discharge drive roller 20a. As described above, the sun gear 426 rotates the planetary gear holder 420 in the clockwise direction.

  The planetary gear holder 420 rotates clockwise, and the first planetary gear 423 circumscribes the first gear 211. Accordingly, the power of the sun gear 426 is transmitted to the first gear 211 via the first planetary gear 423. At this time, since the sun gear 426 rotates clockwise, the first planetary gear 423 rotates counterclockwise, and the first gear 211 rotates clockwise. As the first gear 211 rotates, from the upstream side to the downstream side in the power transmission direction, the second gear 212 is counterclockwise, the third gear 213 and the fourth gear 214 are clockwise, and the fifth gear 215 is In the counterclockwise direction, the sixth gear 216 and the seventh gear 217 rotate in the clockwise direction, and the eighth gear 218 and the pinion 219 rotate in the counterclockwise direction.

  When the pinion 219 rotates counterclockwise, the pinion 219 moves the first discharge stacker 500 from the second position described later to the first position via the rack 227 provided on the first discharge stacker side. It is provided as follows. When the first discharge stacker 500 finishes moving to the first position, the cam shaft 302 rotates counterclockwise until the arc portion 301a and the lever contact portion 303 come into contact with each other, and the lever member 304 is rotated. Is rotated counterclockwise until the state shown in FIG. At this time, the cam shaft 302 rotates so that the PG enters the paper recording mode.

[Movement of first discharge stacker from first position to second position]
Next, the movement of the first discharge stacker 500 from the first position to the second position will be described.
Here, the first position is a position at which the sheet P recorded and discharged by the discharge drive roller 20a can be received in the sheet recording mode, and the discharge drive for placing the sheet P is performed. The position below the roller 20a is said.
On the other hand, in the CD-R recording mode, the second position is for discharging the CD-R tray Q holding the CD-R before recording, including the discharge driving roller 20a and the second discharge driven rollers 503 and 503. Guide to the pair of rollers and receive the CD-R tray Q holding the recorded CD-R ejected by the pair of ejection rollers comprising the ejection drive roller 20a and the second ejection driven rollers 503 and 503. This is a position where the CD-R tray guide surface 523 of the first discharge stacker 500 is substantially the same height as the upper end of the discharge drive roller 20a.

10 to 22 are side views showing the movement of the first discharge stacker of the discharge stacker lifting device according to the present invention. Among these, FIG. 10 is the first position of the first discharge stacker, FIGS. 11 to 21 are moving from the first position to the second position, and FIG. 22 is the second position.
As shown in FIG. 10, the discharge stacker elevating device 200 is disposed on the downstream side in the transport direction of the first discharge stacker 500 and the first discharge stacker 500 that move between the first position and the second position. 2 discharge stacker 600, discharge drive roller 20a provided on the base portion side, first discharge driven rollers 20b, 20b,... For discharging paper P in the discharge direction in cooperation with discharge drive roller 20a. The discharge frame portion 800, the connecting arm portion 700 for connecting the discharge frame portion 800 and the first discharge stacker 500, and the power transmission means 210 for transmitting the power of the discharge drive roller 20a to the first discharge stacker 500 are provided. .

  A first groove 221 that guides the movement of the first discharge stacker 500 is provided on the right side in the transport direction of the base body 220, that is, on the 80th digit side in the main scanning direction. Further, a second groove portion 222 that guides the movement of the first discharge stacker 500 is provided on the digit side of the base portion 220 in the main scanning direction. Furthermore, a pair of fourth groove portions 224 and 224 and fifth groove portions 225 and 225 for guiding the movement of the discharge frame portion 800 are provided on both sides of the base body portion 220 in the main scanning direction. Further, a posture regulating unit 228 for regulating the posture of the moving first discharge stacker 500 is provided above the base unit 220 on the first digit side in the main scanning direction.

The first discharge stacker 500 includes a first placement unit 510 on which the paper P discharged on the upper surface at the first position is placed, and a CD inside the first placement unit and before recording at the second position. A CD-R tray guide opening 522 for guiding the R-tray Q to a pair of discharging rollers composed of a driving roller 20a for discharging and second driven rollers for discharging 503 and 503, and receiving the CD-R tray Q after recording; From the first protrusion 501 engaged / guided with the first groove 221 of the portion 220, the second protrusion 504 engaged / guided with the second groove 222 of the base portion 220, and the first mounting portion 510. Provided on the upstream side in the transport direction, swings around the swing shaft 502 while being urged by a spring (not shown), and moves the CD-R tray Q in the transport direction (Y) in cooperation with the ejection drive roller 20a. Second discharge driven roller 503 And 503, a and posture regulating portions 228 of the base portion 220 and the abutment surface 520 and the abutment projection 521 abuts.
The first discharge stacker 500 includes a pair of sixth grooves 226 and 226 provided on both sides in the main scanning direction, and a pair of third grooves 223 and 223 that engage with the connecting arm 700 on both sides in the main scanning direction. ing. Racks 227 and 227 are provided on one surface of the pair of sixth groove portions 226 and 226, and are configured to mesh with the pair of pinions 219 and 219 described above.

  The second discharge stacker 600 includes a second placement portion 610 that rotates around the cover shaft 601 and places the discharged paper P in cooperation with the first discharge stacker 500 at the first position. Yes. The second discharge stacker 600 is provided so as to rotate around the cover shaft 601 and close the mounting opening 260 in a state where recording is not executed. In other words, the second discharge stacker 600 is provided so as to also serve as a cover case. When the second discharge stacker 600 is opened, the posture of the second discharge stacker 600 is restricted by the cover restricting portion 250 provided on the base portion 220.

The discharge frame portion 800 is engaged with a pair of fourth protrusions 801 and 801 engaged and guided by the pair of fourth groove portions 224 and 224 of the base portion 220 and the pair of fifth groove portions 225 and 225 of the base portion 220. A pair of fifth protrusions 802, 802 to be joined and guided, and first discharge driven rollers 20b, 20b,... That circumscribe the discharge drive roller 20a on the base portion side while being urged by a spring (not shown). I have. The discharge frame portion 800 is always urged upstream in the transport direction by a torsion coil spring (not shown).
The connecting arm portion 700 includes a pair of third protrusions 701 and 701 that are engaged and guided by the pair of third groove portions 223 and 223 of the first discharge stacker 500 at one end, and the other end is a first portion of the discharge frame portion 800. The four protrusions 801 are provided so as to be rotatably connected to the downstream side in the transport direction.

  In the first position, the position of the downstream end of the first discharge stacker 500 in the transport direction is set higher than the position of the upstream end of the second discharge stacker 600 in the transport direction. Therefore, in the paper recording mode, the leading edge of the paper P discharged from the discharge roller is at the level difference between the first placement portion 510 of the first discharge stacker 500 and the second placement portion 610 of the second discharge stacker 600. There is no risk of getting caught.

The first position is the so-called home position of the first discharge stacker 500, and the home position detector 230 provided on the base 220 is configured to be in contact with the first discharge stacker 500 for detection. Yes. The driving amount of the first motor when the first discharge stacker 500 moves from the first position to the second position is a predetermined number of steps after the first discharge stacker 500 is separated from the home position detector 230. It is controlled to stop at. On the other hand, the driving amount of the first motor when the first discharge stacker 500 moves from the second position to the first position is controlled so that the first discharge stacker 500 stops in contact with the home position detector 230. Has been.
In the following description, the third protrusion, the fourth protrusion, the fifth protrusion, the third groove part, the fourth groove part, and the fifth groove part provided in pairs in the main scanning direction have the same shape on the left and right and are synchronized. Therefore, only one side will be described, and the other side will not be described.

As shown in FIG. 11, when the pinion 219 rotates clockwise from the state shown in FIG. 10, power is transmitted to the rack 227 of the first discharge stacker 500. At this time, since the position of the pinion 219 is fixed to the base portion side, the pinion 219 moves downward through the sixth groove portion 226 provided with the rack 227 to move the first discharge stacker 500 upward. To do. That is, a force to move upward acts on the first discharge stacker 500. Then, the first discharge stacker 500 is inclined so that the downstream end in the transport direction rises with the first protrusion 501 on the upstream side in the transport direction as a fulcrum. At this time, the second protrusion 504 of the first discharge stacker 500 moves slightly upward in the second groove of the base body 220.
Further, when the downstream end of the first discharge stacker 500 rises, the first discharge stacker 500 moves away from the home position detector 230, so that the count of the number of steps of the motor is started.

  As shown in FIG. 12, when the pinion 219 further rotates clockwise from the state shown in FIG. 11, the pinion 219 attempts to move the first discharge stacker 500 further upward via the rack 227. Accordingly, the first discharge stacker 500 is inclined so that the downstream end in the transport direction further rises with the first protrusion 501 as a fulcrum. The lower end of the downstream end of the first discharge stacker 500 in the transport direction is higher than the upper end of the upstream end of the second discharge stacker 600 in the transport direction.

  As shown in FIG. 13, when the pinion 219 further rotates clockwise from the state shown in FIG. 12, the pinion 219 tends to move along the sixth groove 226 upstream in the transport direction. That is, the pinion 219 attempts to move the first discharge stacker 500 to the downstream side in the transport direction via the rack 227. Therefore, the first discharge stacker 500 is guided by the engagement between the first protrusion 501 and the first groove 221 and is guided by the engagement between the second protrusion 504 and the second groove 222 while being guided in the transport direction. Move downstream. At this time, the inclination, that is, the posture of the first discharge stacker 500 is regulated by the engagement between the first protrusion 501 and the first groove 221 and the engagement between the second protrusion 504 and the second groove 222. Therefore, the downstream end remains in the raised posture. Accordingly, the first discharge stacker 500 can move downstream in the transport direction so that the position of the downstream end of the first discharge stacker 500 in the transport direction is above the upstream end of the second discharge stacker 600.

  As shown in FIG. 14, when the pinion 219 further rotates clockwise from the state shown in FIG. 13, the pinion 219 tries to move the first discharge stacker 500 further downstream in the transport direction via the rack 227. . Accordingly, the first discharge stacker 500 is guided by the engagement between the first protrusion 501 and the first groove 221 and further conveyed while being guided by the engagement between the second protrusion 504 and the second groove 222. Move downstream in the direction. At this time, the third projecting portion 701 of the connecting arm portion 700 moves the third groove portion 223 of the first discharge stacker 500 to the upstream side in the transport direction and hits the upstream end of the third groove portion 223.

As shown in FIG. 15, when the pinion 219 further rotates clockwise from the state shown in FIG. 14, the first discharge stacker 500 further moves downstream in the transport direction. At this time, since the third protrusion 701 of the connecting arm portion 700 is in contact with the upstream end in the transport direction of the third groove portion 223 of the first discharge stacker 500, the first discharge stacker 500 is interposed via the connecting arm portion 700. Thus, the discharge frame portion 800 is moved downstream in the conveyance direction against the biasing force of the torsion coil spring described above.
At this time, the discharge frame portion 800 is guided by the engagement of the fourth protrusion 801 and the fourth groove portion 224 and the engagement of the fifth protrusion 802 and the fifth groove portion 225, and on the downstream side in the transport direction and above Move to. As the discharge frame portion 800 moves, the first discharge driven rollers 20b, 20b,... Provided in the discharge frame portion 800 are separated from the discharge drive roller 20a.
As the discharge frame portion 800 moves, the discharge auxiliary driven rollers 22, 22,... (See FIG. 3) also move the first discharge driven rollers 20b, 20b,. Has been.

  Further, due to the biasing force of the torsion coil spring described above, a force acts so that the third protrusion 701 of the connecting arm 700 pulls the upstream end of the third groove 223 of the first discharge stacker 500 upstream. Accordingly, a force is generated in the first discharge stacker 500 to rotate counterclockwise around a position where the rack 227 meshes with the pinion 219. The first protrusion 501 and the second protrusion 504 that are located on the opposite side of the third protrusion 701 with respect to the fulcrum by the force to rotate in the counterclockwise direction are the first groove 221 and It is pressed against the lower surface of the second groove 222. Accordingly, the posture of the first discharge stacker 500 can be further stabilized during movement.

  As shown in FIG. 16, when the pinion 219 further rotates clockwise from the state shown in FIG. 15, the first discharge stacker 500 further moves downstream in the transport direction. Then, the first discharge stacker 500 moves downstream in the transport direction, and the first discharge stacker 500 moves the discharge frame portion 800 through the connecting arm portion 700 against the biasing force of the torsion coil spring described above. Further, it is moved downstream in the transport direction.

  As shown in FIG. 17, when the pinion 219 further rotates clockwise from the state shown in FIG. 16, the pinion 219 attempts to move downward along the sixth groove portion 226. That is, the pinion 219 tries to move the first discharge stacker 500 upward via the rack 227. At this time, due to the biasing force of the torsion coil spring described above, a force is generated in the first discharge stacker 500 so as to rotate counterclockwise around a position engaging with the pinion 219 in the rack 227. Accordingly, when the pinion 219 rotates in the clockwise direction, the first discharge stacker 500 tilts so that the downstream end of the first discharge stacker 500 further rises with the first protrusion 501 as a fulcrum. Then, the contact surface 520 provided above the downstream side in the transport direction of the first discharge stacker 500 contacts the attitude regulating unit 228 of the base body 220.

  In a state where the contact surface 520 is in contact with the attitude regulating portion 228, the place where the third protrusion 701 and the third groove 223, which are the places where the biasing force of the torsion coil spring acts, is in the rack 227. It is located between a portion meshing with the pinion 219 and a portion in contact with the attitude regulating portion 228 on the contact surface 520. Therefore, the posture restricting portion 228 causes the contact surface to rotate in the counterclockwise direction with the urging force of the torsion coil spring as described above rotating about the position where the first discharge stacker 500 is engaged with the pinion 219 in the rack 227. It can be regulated by contacting with 520.

Further, when the pinion 219 is rotated in the clockwise direction, the movement of the first discharge stacker 500 on the downstream side in the conveyance direction is restricted by the attitude restriction unit 228, so that the first discharge stacker 500 has the downstream in the conveyance direction as a fulcrum. Move to lift the upstream side upward. At this time, the contact surface 520 contacts the posture restricting portion 228, and at the same time, the first discharge stacker 500 is restricted from rotating counterclockwise around the position where the rack 227 is engaged with the pinion 219. The first protrusion 501 and the second protrusion 504 are released from being pressed against the lower surfaces of the first groove 221 and the second groove 222, respectively. Accordingly, the pinion 219 rotates in the clockwise direction, and the first protrusion 501 and the second protrusion 504 move upward along the first groove 221 and the second groove 222, respectively.
Further, as the first discharge stacker 500 moves, the discharge frame portion 800 moves downstream in the transport direction.

As shown in FIG. 18, when the pinion 219 further rotates clockwise from the state shown in FIG. 17, the pinion 219 attempts to move the first discharge stacker 500 further upward via the rack 227. Accordingly, the first discharge stacker 500 moves so that the upstream end in the transport direction further rises with the downstream side in the transport direction as a fulcrum. That is, the inclination of the CD-R tray guide surface 523 of the first discharge stacker 500 with respect to the transport direction (Y) is decreased. At this time, the second projecting portion 504 and the second groove portion 222 are biased by the torsion coil spring described above in order to prevent the rack 227 from being separated from the pinion 219 by the biasing force of the torsion coil spring described above. Is provided so that the second protrusion 504 is always located on the opposite side of the rack 227 with respect to the pinion 219 while acting on the first discharge stacker 500.
Further, as the first discharge stacker 500 moves, the discharge frame portion 800 moves downstream in the transport direction.

As shown in FIG. 19, when the pinion 219 further rotates clockwise from the state shown in FIG. 18, the first discharge stacker 500 moves so that the upstream end in the transport direction further rises with the downstream side in the transport direction as a fulcrum. . At this time, the attitude regulating portion 228 of the base body portion 220 comes into contact with the contact protrusion 521 provided on the contact surface 520 of the first discharge stacker 500. The contact protrusion 521 always moves the first discharge stacker 500 to make the posture of the CD-R tray guide surface 523 of the first discharge stacker 500 parallel to the transport direction (Y). 228 and the first discharge stacker 500 are provided so as to be in contact with each other.
Further, as the first discharge stacker 500 moves, the discharge frame portion 800 moves downstream in the transport direction.

As shown in FIG. 20, when the pinion 219 further rotates clockwise from the state shown in FIG. 19, the first discharge stacker 500 moves so that the upstream end in the transport direction further rises with the downstream side in the transport direction as a fulcrum. . At this time, the second discharge driven rollers 503 and 503 provided on the upstream side in the transport direction of the first discharge stacker 500 move to a position near the downstream side in the transport direction of the discharge drive roller 20a on the base unit side.
Further, as the first discharge stacker 500 moves, the discharge frame portion 800 moves downstream in the transport direction.

As shown in FIG. 21, when the pinion 219 further rotates clockwise from the state shown in FIG. 20, the first discharge stacker 500 moves so that the upstream end in the transport direction further rises with the downstream side in the transport direction as a fulcrum. . At this time, the second discharge driven rollers 503 and 503 provided on the upstream side in the transport direction of the first discharge stacker 500 are higher than the discharge drive roller 20a on the base portion side, and the second discharge driven roller The lower part of 503 and 503 moves to a position where it is substantially the same height as the upper part of the discharge drive roller 20a. At this time, the inclination, that is, the posture of the first discharge stacker 500 is such that the CD-R tray guide surface 523 of the first discharge stacker 500 is parallel to the transport direction (Y).
Here, “parallel” means that the CD-R tray Q can be guided to the recording unit 110 and the recorded CD-R tray Q can be received in the main scanning direction X and the conveyance direction (Y). On the other hand, it means being substantially parallel.
As the first discharge stacker 500 moves, the discharge frame portion 800 receives the biasing force of the torsion coil spring and moves upstream in the transport direction.

As shown in FIG. 22, when the pinion 219 further rotates clockwise from the state shown in FIG. 21, the pinion 219 tends to move along the sixth groove 226 downstream in the transport direction. That is, the pinion 219 tries to move the first discharge stacker 500 to the upstream side in the transport direction through the rack 227 in cooperation with the biasing force of the torsion coil spring described above. Therefore, the first discharge stacker 500 is guided by the engagement between the first protrusion 501 and the first groove 221 and is guided by the engagement between the second protrusion 504 and the second groove 222 while being guided in the transport direction. Move upstream. That is, the posture of the first discharge stacker 500 is regulated by the engagement between the first protrusion 501 and the first groove 221 and the engagement between the second protrusion 504 and the second groove 222. Accordingly, the CD-R tray guide surface 523 is translated in the upstream direction in the transport direction while maintaining a posture that is parallel to the transport direction (Y).
As the first discharge stacker 500 moves, the discharge frame portion 800 receives the biasing force of the torsion coil spring and moves upstream in the transport direction.

Here, since the posture of the first discharge stacker 500 has already obtained the desired posture, the contact protrusion 521 of the first discharge stacker 500 is separated from the posture regulating portion 228 of the base body 220. In other words, when the first discharge stacker 500 moves in parallel, the posture regulating unit 228 is provided so as not to act on the first discharge stacker 500 at all. Accordingly, there is no possibility that the posture of the first discharge stacker 500 becomes unstable due to the frictional resistance generated between the posture restricting unit 228 and the first discharge stacker 500.
In addition, due to the urging force of the torsion coil spring described above, a force that rotates the first discharge stacker 500 counterclockwise acts on a position where the first discharge stacker 500 meshes with the pinion 219 in the rack 227. Since the first protrusion 501 of the first discharge stacker 500 is pressed against the lower portion of the first groove portion 221 of the base body 220, the first discharge stacker 500 can hold the posture with high accuracy.
The first discharge stacker 500 is stopped when the pinion 219 is stopped at a position where the lower portions of the second discharge driven rollers 503 and 503 of the first discharge stacker 500 are in contact with the upper portion of the discharge drive roller 20a on the base portion side. Stops. The stop position of the first discharge stacker 500 shown in FIG. 22 is the second position that the first discharge stacker 500 takes in the CD-R recording mode. At this time, the second discharge driven rollers 503 and 503 are biased so as to swing toward the discharge drive roller by a biasing force of a spring (not shown). Accordingly, in the CD-R recording mode, the second discharge driven rollers 503 and 503 cooperate with the discharge drive roller 20a to sandwich the CD-R tray Q, and to the upstream and downstream in the transport direction. Can be moved.

  The timing at which the pinion 219 stops is the direction in which the first driving stacker 500 is separated from the home position detector 230 as described above and the first motor is rotated by a predetermined number of steps and the discharging drive roller 20a is reversely rotated. It is provided to stop after being driven to. Therefore, the second position of the first discharge stacker 500 can be determined with high accuracy.

  As described above, the discharge stacker lifting / lowering device 200 moves so as to first draw the downstream side of the first discharge stacker 500 to the upper side and the downstream side of the discharge stacker lifting / lowering device 200 without coming into contact with the second discharge stacker 600. Next, the upstream side of the first discharge stacker 500 can be moved to be pulled up above the discharge stacker lifting device 200. That is, when the discharge stacker lifting / lowering device 200 moves from the first position to the second position, the discharge stacker lifting / lowering device 200 is located above the first placement portion 510 of the first discharge stacker 500 and the second placement portion 610 of the second discharge stacker 600. Even if the space is restricted by, for example, the bar guide 431, the first discharge stacker 500 can be moved.

[Movement of first discharge stacker from second position to first position]
When the CD-R recording mode is switched to the paper recording mode, the power transmission shown in FIG. 9 is connected from the state where the power transmission is cut by the power transmission switching device 400 shown in FIG. 7 as described above. At this time, the discharge drive roller 20a is driven forward, that is, the sun gear 426 rotates clockwise. Then, the power of the sun gear 426 is transmitted to the pinion 219 by the power transmission means 210. Accordingly, the pinion 219 rotates counterclockwise.

When the pinion 219 rotates counterclockwise from the state shown in FIG. 22, the pinion 219 tends to move along the sixth groove 226 upstream in the transport direction. In other words, the pinion 219 attempts to move the first discharge stacker 500 to the downstream side in the transport direction through the rack 227 against the biasing force of the torsion coil spring described above. Therefore, the first discharge stacker 500 is guided by the engagement between the first protrusion 501 and the first groove 221 and is guided by the engagement between the second protrusion 504 and the second groove 222 while being guided in the transport direction. Move downstream. At this time, the first discharge stacker 500 moves parallel to the downstream side in the transport direction while maintaining the posture in which the CD-R tray guide surface 523 is parallel to the transport direction (Y).
Further, as the first discharge stacker 500 moves, the discharge frame portion 800 moves downstream in the transport direction.

  As shown in FIG. 21, when the pinion 219 rotates counterclockwise from the state shown in FIG. 22, the first discharge stacker 500 moves downstream in the transport direction against the biasing force of the torsion coil spring. . At this time, the second discharge driven rollers 503 and 503 of the first discharge stacker 500 are separated from the discharge driving roller 20a on the base portion side. Further, the abutting protrusion 521 of the first discharge stacker 500 abuts on the attitude regulating portion 228 of the base portion 220 that has been separated. Then, the first protrusion 501 of the first discharge stacker 500 is separated from the lower surface of the first groove 221 by the shape of the first groove 221. Therefore, due to the urging force of the torsion coil spring described above, a force that causes the first discharge stacker 500 to rotate counterclockwise acts at a position where the first discharge stacker 500 meshes with the pinion 219 in the rack 227. At this time, the posture of the first discharge stacker 500 is regulated by the posture regulating unit 228 coming into contact with the contact projection 521.

As shown in FIG. 20, when the pinion 219 further rotates counterclockwise from the state shown in FIG. 21, the first discharge stacker 500 moves with the downstream side in the transport direction as a fulcrum so that the upstream end in the transport direction is lowered. . At this time, the second discharge driven rollers 503 and 503 provided on the upstream side in the transport direction of the first discharge stacker 500 move to a position near the downstream side in the transport direction of the discharge drive roller 20a on the base unit side.
As the first discharge stacker 500 moves, the discharge frame unit 800 moves upstream in the transport direction.

As shown in FIG. 19, when the pinion 219 further rotates counterclockwise from the state shown in FIG. 20, the first discharge stacker 500 moves so that the upstream end in the transport direction is further lowered with the downstream side in the transport direction as a fulcrum. To do. At this time, the positions of the second discharge driven rollers 503 and 503 of the first discharge stacker 500 are lower than the position of the discharge drive roller 20a on the base portion side.
As the first discharge stacker 500 moves, the discharge frame unit 800 moves upstream in the transport direction.

As shown in FIG. 18, when the pinion 219 further rotates counterclockwise from the state shown in FIG. 19, the first discharge stacker 500 moves so that the upstream end in the transport direction further descends with the downstream side in the transport direction as a fulcrum. To do. At this time, the posture regulating unit 228 of the base body 220 regulates the posture of the first discharge stacker 500 by being separated from the contact protrusion 521 of the first discharge stacker 500 and contacting the contact surface 520.
As the first discharge stacker 500 moves, the discharge frame unit 800 moves upstream in the transport direction.

  As shown in FIG. 17, when the pinion 219 further rotates counterclockwise from the state shown in FIG. 18, the first discharge stacker 500 moves so that the upstream end in the transport direction further descends with the downstream side in the transport direction as a fulcrum. To do. As the first discharge stacker 500 moves, the discharge frame unit 800 moves upstream in the transport direction.

As shown in FIG. 16, when the pinion 219 further rotates counterclockwise from the state shown in FIG. 17, the first discharge stacker 500 moves so that the upstream end in the transport direction further descends with the downstream side in the transport direction as a fulcrum. To do. At this time, the first protrusion 501 on the upstream side in the transport direction of the first discharge stacker 500 contacts the lower surface of the first groove 221 of the base body 220. As the pinion 219 rotates, the first discharge stacker 500 resists the force that the first discharge stacker 500 rotates counterclockwise due to the biasing force of the torsion coil spring described above. With the portion where 501 and the first groove 221 are in contact with each other as a fulcrum, it moves clockwise so that the downstream side in the transport direction of the first discharge stacker 500 is lowered. Accordingly, the contact surface 520 of the first discharge stacker 500 is separated from the attitude regulating portion 228 of the base body portion 220. At this time, the posture of the first discharge stacker 500 is such that the first protrusion 501 is brought into contact with the lower surface of the first groove 221 of the base body 220 by the force that the first discharge stacker 500 tries to rotate counterclockwise. It is regulated by hitting.
As the first discharge stacker 500 moves, the discharge frame unit 800 moves upstream in the transport direction.

As shown in FIG. 15, when the pinion 219 further rotates counterclockwise from the state shown in FIG. 16, the pinion 219 attempts to move along the sixth groove 226 downstream in the transport direction. That is, the pinion 219 tries to move the first discharge stacker 500 to the upstream side in the transport direction through the rack 227 in cooperation with the biasing force of the torsion coil spring described above. Therefore, the first discharge stacker 500 is guided by the engagement between the first protrusion 501 and the first groove 221 and is guided by the engagement between the second protrusion 504 and the second groove 222 while being guided in the transport direction. Move upstream. At this time, the posture of the first discharge stacker 500 is regulated by the engagement between the first protrusion 501 and the first groove 221 and the engagement between the second protrusion 504 and the second groove 222. That is, the first discharge stacker 500 moves parallel to the upstream side while maintaining the posture in which the upstream side in the transport direction is lowered and the downstream side is raised.
Further, along the movement of the first discharge stacker 500, it is guided by the engagement between the fourth protrusion 801 and the fourth groove 224 and the engagement between the fifth protrusion 802 and the fifth groove 225, and upstream in the conveying direction. And move downward.

As shown in FIG. 14, when the pinion 219 further rotates counterclockwise from the state shown in FIG. 15, the first discharge stacker 500 engages with the first protrusion 501 and the first groove 221 and the second protrusion. While being guided by the engagement between the portion 504 and the second groove 222, the upstream side in the transport direction is lowered and the downstream side is raised, and the translation is performed in the upstream direction. Further, the discharge frame portion 800 moves with the movement of the first discharge stacker 500, and the lower portions of the first discharge driven rollers 20b, 20b,. It contacts the upper part of 20a. At this time, the fourth projecting portion 801 and the fifth projecting portion 802 of the discharge frame portion 800 hit the upstream ends of the fourth groove portion 224 and the fifth groove portion 225 of the base portion 220 in the conveying direction, respectively, and the discharge frame portion 800 stops To do.
Further, the fourth projecting portion 801 and the fifth projecting portion 802 hit the upstream ends in the conveying direction of the fourth groove portion 224 and the fifth groove portion 225 of the base body portion 220, respectively. It does not reach the first discharge stacker 500.

As shown in FIG. 13, when the pinion 219 further rotates counterclockwise from the state shown in FIG. 14, the first discharge stacker 500 moves parallel to the upstream side in the transport direction. At this time, the discharge frame portion 800 is held in a stopped state by the biasing force of the torsion coil spring described above. Accordingly, the third protrusion 701 of the connecting arm 700 moves away from the upstream end in the transport direction of the third groove 223 of the first discharge stacker 500 and moves downstream.
Here, the first discharge stacker 500 is provided to move in parallel to the upstream side in the transport direction until the downstream end in the transport direction of the first discharge stacker 500 is located upstream from the upstream end of the second discharge stacker 600. It has been.

  As shown in FIG. 12, when the pinion 219 further rotates counterclockwise from the state shown in FIG. 13, the pinion 219 attempts to move upward along the sixth groove portion 226. That is, the pinion 219 tries to move the first discharge stacker 500 downward through the rack 227. Accordingly, the first discharge stacker 500 rotates clockwise with the first protrusion 501 as a fulcrum so that the downstream end in the transport direction is lowered and the height difference between the upstream end and the downstream end is reduced.

As shown in FIG. 11, when the pinion 219 further rotates counterclockwise from the state shown in FIG. 12, the first discharge stacker 500 descends at the downstream end in the transport direction with the first protrusion 501 as a fulcrum. And turn clockwise so that the difference in height between the downstream end and the downstream end is further reduced.
As shown in FIG. 10, when the pinion 219 further rotates counterclockwise from the state shown in FIG. 11, the first discharge stacker 500 descends with the first protrusion 501 as a fulcrum and the downstream end in the transport direction descends to the upstream end. And turn clockwise so that the difference in height between the downstream end and the downstream end is further reduced. At this time, the first discharge stacker 500 contacts the home position detector 230. Then, the home position detector 230 detects the first discharge stacker 500, stops the driving of the first motor, and stops the rotation of the pinion 219. Accordingly, the first discharge stacker 500 is accurately positioned at the first position.

  As described above, the discharge stacker lifting / lowering device 200 moves so as to push the upstream side of the first discharge stacker 500 into the lower side and upstream of the discharge stacker lifting / lowering device 200 without coming into contact with the second discharge stacker 600. Then, the downstream side of the first discharge stacker 500 can be moved so as to be pushed below the discharge stacker lifting device 200. That is, when the discharge stacker lifting / lowering device 200 moves from the second position to the first position, the first stacker 510 of the first discharge stacker 500 and the second stacker 610 of the second discharge stacker 600 are located above. Even if the space is restricted by, for example, the bar guide 431, the first discharge stacker 500 can be moved.

  Further, when the first discharge stacker 500 moves from the second position to the first position, the discharge drive roller 20a is driven to rotate forward. The forward rotation means a clockwise rotation in FIGS. Accordingly, even when the CD-R tray Q is sandwiched between the discharge drive roller 20a and the second discharge driven rollers 503 and 503, that is, when the CD-R tray Q is not normally discharged after recording, the discharge drive roller 20a. The second discharge driven rollers 503 and 503 can cooperate to move the CD-R tray Q to the downstream side in the transport direction. Then, the CD-R tray Q is not nipped by the discharge drive roller 20a and the second discharge driven rollers 503 and 503. As a result, the CD-R tray Q is moved to the first position while the CD-R tray Q is nipped between the discharge driving roller 20a and the second discharge driven rollers 503 and 503, whereby the CD-R tray Q is moved to the first position. There is no risk of the tray Q being damaged. Further, when the first discharge stacker 500 moves from the second position to the first position, the discharge drive roller 20a and the second discharge driven rollers 503 and 503 do not have the possibility of involving the CD-R tray Q. This is effective when the user leaves the CD-R tray Q in the CD-R tray guide opening of the first discharge stacker 500.

  Further, since only the first discharge stacker 500 is moved instead of the entire discharge stacker 50, the weight of the moved member is lighter than when the entire discharge stacker 50 is moved. Therefore, the power source can be reduced in size accordingly.

[Opening and closing the second discharge stacker]
23 to 25 are side views showing opening and closing of the second discharge stacker according to the present invention. 23 shows a state in which the second discharge stacker is closed, FIG. 24 shows a state in the middle of opening, and FIG. 25 shows an open state.

  As shown in FIG. 23, when the power is turned off, the first discharge stacker 500 is provided so as to be located at the first position, and the second discharge stacker 600 is in a state where the placement opening 260 is closed. The second discharge stacker 600 is configured to be kept closed by a lock lever (not shown) with a spring force. When the power source is switched on and the CD-R recording mode is selected, the first discharge stacker 500 moves from the first position to the second position as described above.

  As shown in FIG. 24, when the first discharge stacker 500 moves from the first position to the second position, the first discharge stacker 500 moves upward and then moves downstream in the transport direction. At this time, the downstream end in the transport direction of the first discharge stacker 500 abuts and presses against the second placement portion 610 on the front end side from the cover shaft 601 of the second discharge stacker 600. Accordingly, the second discharge stacker 600 rotates in the clockwise direction in the drawing with the cover shaft 601 as a fulcrum.

As shown in FIG. 25, when the second discharge stacker 600 is pushed by the first discharge stacker 500 and pivots clockwise to some extent, the second discharge stacker 600 is slowly rotated by its own weight and a damper (not shown) that resists its own weight. Keep doing. Then, the second discharge stacker 600 comes into contact with the cover restricting portion 250 of the base portion 220 and stops. That is, when the CD-R recording mode is selected, the second discharge stacker 600 is automatically opened even when it is closed.
As described above, when the CD-R recording mode is selected, the user sets the CD-R tray Q in the closed state in order to set the CD-R tray Q in the CD-R tray guide opening 522 of the first discharge stacker 500. There is no need to manually open the stacker 600.
Of course, the user can manually open and close the second discharge stacker.

[CD-R recording mode]
FIG. 26 is a schematic side view showing a second position of the first discharge stacker according to the present invention. FIG. 26 is also a schematic side view of the state shown in FIG.
As shown in FIG. 26, when the first discharge stacker 500 is in the second position, the CD-R tray Q is inserted from the CD-R tray guide opening 522 along the CD-R tray guide surface 523. When set in the set position shown in FIG. 6, the upstream end in the transport direction of the CD-R tray Q is sandwiched between the discharge driving roller 20a and the second discharge driven rollers 503 and 503 as shown in FIG. It becomes a state.

Thereafter, the paper is sent upstream in the transport direction by the reverse drive of the discharge driving roller 20a. Then, the downstream end in the transport direction of the CD-R attached to the CD-R tray Q stops at a position facing the recording head 13, that is, a so-called recording start position. Thereafter, the ejection drive roller 20a is driven to rotate in the forward direction, and the recording head 13 is scanned in the main scanning direction X while the CD-R tray Q is moved downstream in the transport direction, and recording is performed on the CD-R label. To do. When the recording is completed, the discharge driving roller 20a and the second discharge driven rollers 503 and 503 cooperate to discharge the CD-R tray Q to the downstream side in the transport direction. At this time, the upstream end in the transport direction of the CD-R tray Q is disengaged from the nip between the discharge driving roller 20a and the second discharge driven rollers 503 and 503, so that the CD-R tray Q is CD- The CD-R tray Q stops at a position protruding further than the position where a part of the CD-R tray Q protrudes from the R tray guide opening 522.
Of course, instead of the CD-R tray, the sheet may be manually set in the CD-R tray guide opening of the first discharge stacker.

[About power transmission switching device]
The power transmission switching device has been described in “PG switching and recording mode switching” described above, but will be described in more detail below.
FIG. 27 to FIG. 29 are enlarged plan views of main parts showing a power transmission switching device according to the present invention. Among these, FIG. 27 is a power cut state, FIG. 28 is a connection state during the reverse rotation driving of the sun gear, and FIG. 29 is a connection state during the forward rotation driving of the sun gear.

  As shown in FIGS. 27 to 29, as described above, the power transmission switching device 400 is provided coaxially with the discharge drive roller 20a rotated by the first motor, and rotates integrally with the sun gear 426 and the sun gear. The first planetary gear 423 and the second planetary gear 424 circumscribing the 426, the first planetary gear 423 and the second planetary gear 424 are held, and the sun gear 426 is pivotably pivoted about the pivot fulcrum shaft 425. A planetary gear holder unit 420, a first gear 211 that is disposed between the first planetary gear 423 and the second planetary gear 424 and receives the power of the first planetary gear 423 and the second planetary gear 424, and the planetary gear holder unit 420. And a lock lever 410 that regulates the posture of the camera.

Among these, the planetary gear holder part 420 includes a first support part 421 that supports the first planetary gear 423 and a second support part 422 that supports the second planetary gear 424. And the 1st support part 421 and the 2nd support part 422 are projected and provided to the near side in the figure of the rotation fulcrum axis direction to gear holder base part 420a which is a base of planetary gear holder part 420.
The lock lever 410 includes a lock lever opening 413 that is a long hole through which the rotation fulcrum shaft 425 is inserted, a lever connecting portion 412 as a connecting portion that is rotatably connected to the slide bar 430 on one end side, and the like. A lock lever contact portion 411 that can contact the first support portion 421 and the second support portion 422 is provided on the end side. And the lock lever contact part 411 is provided with the 1st control surface 411a and the 2nd control surface 411b so that it may become thin gradually toward the front end side.

  Further, the lock lever 410 is disposed between the first support portion 421 and the second support portion 422, and swings around the rotation fulcrum shaft 425 as a reciprocating movement of the slide bar 430 and rotates. It is configured to reciprocate while being guided by the moving fulcrum shaft 425 and the lock lever opening 413. When the lock lever 410 reciprocates, the planetary gear holder unit 420 is positioned by the first restricting surface 411a abutting on the first support part 421 or the second restricting surface 411b abutting on the second support part 422. The lock lever 410 can be forced to follow. Then, as shown in FIG. 27, the lock lever abutting portion 411 abuts on the first support portion 421 and the second support portion 422 so that the attitude of the planetary gear holder portion 420 is regulated and held, that is, locked. it can.

  Here, in order to accurately regulate the attitude of the planetary gear holder portion 420, it is desirable that the lock lever abutting portion 411 completely abuts on the first support portion 421 and the second support portion 422. In order to perform the reciprocating movement smoothly, a slight play may be provided between the first support part 421 and the second support part 422 and the lock lever contact part 411. As a result of the play, the planetary gear holder 420, the first planetary gear 423, and the second planetary gear 424 rotate about the rotation fulcrum shaft 425, but the first planetary gear 423 and the second planetary gear 424 rotate the first gear 211. There is no problem if the play is small enough not to circumscribe.

As shown in FIG. 27, the lock lever 410 locks the planetary gear holder 420 in a state where the first planetary gear 423 and the second planetary gear 424 are separated from the first gear 211. Therefore, even when the sun gear 426 rotates clockwise as the discharge driving roller 20a rotates clockwise, which is normal rotation driving, the power of the sun gear 426 is not transmitted to the first gear 211. . Similarly, even when the sun gear 426 rotates counterclockwise as the discharge driving roller 20a rotates counterclockwise, which is reverse rotation driving, the power of the sun gear 426 is transferred to the first gear 211. Not transmitted.
At this time, the attitude of the planetary gear holder 420 is regulated by the attitude of the lock lever 410. That is, by controlling the posture of the lock lever 410 with the slide bar 430, the posture of the planetary gear holder portion 420 can be regulated with high accuracy.

  As shown in FIG. 28, when the slide bar 430 slides to the left, the lever connecting portion 412 that is one end of the lock lever 410 is pulled. And it is guided and moved by the rotation fulcrum shaft 425 and the lock lever opening 413. At this time, the lock lever contact portion 411 is separated from the first support portion 421 and the second support portion 422. Thereafter, when the discharge driving roller 20a is driven in reverse by driving the first motor, the sun gear 426 rotates counterclockwise. Then, the planetary gear holder 420 rotates counterclockwise, and the second planetary gear 424 circumscribes the first gear 211. Accordingly, the power of the sun gear 426 is transmitted to the first gear 211.

  On the other hand, when the power transmission is cut off, the driving of the first motor is stopped by the control unit, and the rotation of the sun gear 426, the first planetary gear 423, the second planetary gear 424, and the first gear 211 is stopped. When the slide bar 430 is slid to the right, the lock lever 410 is guided and moved by the rotation fulcrum shaft 425 and the lock lever opening 413. At this time, the second restricting surface 411b comes into contact with the second support portion 422 and rotates the planetary gear holder portion 420 in the clockwise direction via the second restricting portion. Accordingly, the second planetary gear 424 is separated from the first gear 211, and the postures of the lock lever 410 and the planetary gear holder portion 420 are as shown in FIG.

  In addition, while the sun gear 426 rotates counterclockwise, the attitude of the planetary gear holder 420 may be restricted by the lock lever 410 to cut off the power transmission. Further, when connecting the power transmission, while the sun gear 426 is rotating counterclockwise, the attitude restriction of the planetary gear holder 420 by the lock lever 410 is released, and the second planetary gear 424 is circumscribed with the first gear 211. Of course, the power transmission may be connected.

  As shown in FIG. 29, when the slide bar 430 slides to the left, the lever connecting portion 412 that is one end of the lock lever 410 is pulled. And it is guided and moved by the rotation fulcrum shaft 425 and the lock lever opening 413. At this time, the lock lever contact portion 411 is separated from the first support portion 421 and the second support portion 422. After that, when the discharge driving roller 20a is driven to rotate forward by driving the first motor, the sun gear 426 rotates clockwise. Then, the planetary gear holder portion 420 rotates clockwise, and the first planetary gear 423 circumscribes the first gear 211. Accordingly, the power of the sun gear 426 is transmitted to the first gear 211.

  On the other hand, when the power transmission is cut off, the driving of the first motor is stopped by the control unit, and the rotation of the sun gear 426, the first planetary gear 423, the second planetary gear 424, and the first gear 211 is stopped. When the slide bar 430 is slid to the right, the lock lever 410 is guided and moved by the rotation fulcrum shaft 425 and the lock lever opening 413. At this time, the 1st control surface 411a contact | abuts with the 1st support part 421, and rotates the planetary gear holder part 420 counterclockwise via a 1st control part. Accordingly, the first planetary gear 423 is separated from the first gear 211, and the postures of the lock lever 410 and the planetary gear holder portion 420 are as shown in FIG.

  As described above, the power transmission switching device 400 can turn on power transmission from the first planetary gear 423 to the first gear during the forward rotation of the sun gear 426. Further, power transmission from the first planetary gear 423 to the first gear can be turned OFF during the forward rotation of the sun gear 426. Power transmission from the second planetary gear 424 to the first gear can be turned ON during the reverse rotation driving of the sun gear 426. Further, power transmission from the second planetary gear 424 to the first gear can be turned OFF during the reverse rotation driving of the sun gear 426. Further, power transmission from the first planetary gear 423 and the second planetary gear 424 to the first gear can be turned off while the sun gear 426 is stopped. At this time, even if the sun gear 426 is rotated by some external force, there is no possibility that power is transmitted from the first planetary gear 423 and the second planetary gear 424 to the first gear. That is, the power transmission switching device 400 can freely control the above five operations.

  In addition, while the sun gear 426 rotates clockwise, the posture of the planetary gear holder 420 may be regulated by the lock lever 410 to cut off the power transmission. Further, when connecting the power transmission, while the sun gear 426 is turning clockwise, the posture restriction of the planetary gear holder 420 by the lock lever 410 is released, and the first planetary gear 423 is circumscribed with the first gear 211. Of course, power transmission may be connected.

  The power transmission switching device 400 of the present embodiment includes a sun gear 426 provided on the upstream side in the power transmission direction, and a first planetary gear serving as two planetary gears that circumscribe the sun gear 426 and transmit power downstream in the power transmission direction. A power transmission switching device 400 including a gear 423 and a second planetary gear 424 and a first gear 211 as a driven transmission gear that circumscribes one of the first planetary gear 423 and the second planetary gear 424 and transmits power. The first planetary gear 423 and the second planetary gear 424 are rotatably held, and the planetary gear holder unit 420 is provided rotatably about a rotation fulcrum shaft 425 as a rotation axis of the sun gear 426. A lock lever 410 as a lock member that can come into contact with the planetary gear holder portion 420, and the lock lever 410 engages with the planetary gear holder portion 420 to play a planet. The gear holder 420, wherein the both the first planetary gear 423 and second planetary gear 424 is configured to lock rotates to a position that does not circumscribe the first gear 211.

  Among these, the lock lever 410 of the present embodiment includes a lock lever opening 413 as an opening that is long in one direction through which the rotation fulcrum shaft 425 that is the rotation shaft of the sun gear 426 is inserted, and a lock lever opening. A lock lever abutting portion 411 as an abutting portion provided at an end portion of the lock lever 410 in the longitudinal direction of 413, and the lock lever abutting portion 411 includes the first planetary gear 423 and the first planetary gear 423 in the planetary gear holder portion 420. A planetary gear holder portion that is intermediate between the first support portion 421 and the second support portion 422 as the support portions of the two planetary gears 424 and abuts and engages with the first support portion 421 and the second support portion 422, respectively. 420 is configured to regulate the posture of 420.

  Further, the lock lever 410 of this embodiment includes a lever connecting portion 412 as a connecting portion on the side opposite to the side on which the lock lever abutting portion 411 is provided, and the lever connecting portion 412 serves as a slide member that reciprocates. The slide bar 430 is pivotably connected to the slide bar 430.

  The recording apparatus 100 according to the present embodiment ejects ink from a recording head 13 provided in a recording unit 110 that is an example of a liquid ejecting unit, and a sheet P and a second medium that are non-rigid media as a first medium As a recording medium 100 for recording on a CD-R tray Q to which a CD-R, which is a rigid medium, is attached, and a discharge drive roller for moving the recorded paper P and the CD-R tray Q in the transport direction A first position which is a motor serving as a power source of 20a, a first position where the recorded paper P is stacked, and a first discharge stacker 500 as a discharge stacker using the driving force of the first motor; A discharge stacker lifting / lowering device 2 that guides the paper P and the CD-R tray Q to the recording unit 110 and moves the paper P and the CD-R tray Q to a second position for receiving the recorded paper P and the CD-R tray Q. 0, the power to the ejection stacker lifting device 200 from the first motor is characterized by comprising a power transmission switching device 400 for switching from transmitting.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

FIG. 2 is a perspective view showing the appearance of an inkjet printer. The perspective view which removes a casing and shows the internal structure of an inkjet printer. FIG. 3 is a side sectional view showing an outline of the internal structure of the ink jet printer. The perspective view (1st position) which shows the paper recording mode of the discharge | emission stacker raising / lowering apparatus which concerns on this invention. The perspective view (2nd position) which shows CD-R recording mode of the discharge | emission stacker raising / lowering apparatus which concerns on this invention. The perspective view which shows the state which set the CD-R tray in CD-R recording mode (2nd position). The schematic side view (cutting) which shows the power transmission to the discharge | emission stacker raising / lowering apparatus which concerns on this invention. The schematic side view (reverse rotation) which shows the power transmission to the discharge | emission stacker raising / lowering apparatus which concerns on this invention. The schematic side view (forward rotation) which shows the power transmission to the discharge | emission stacker raising / lowering apparatus which concerns on this invention. The side view (1st position) which shows the movement of the 1st discharge | emission stacker of the discharge | emission stacker raising / lowering apparatus which concerns on this invention. The side view which shows the movement of the 1st discharge stacker concerning the present invention (downstream end rise). The side view which shows the movement of the 1st discharge stacker concerning the present invention (downstream end rise). The side view which shows the movement of the 1st discharge stacker concerning the present invention (moving downstream). The side view which shows the movement of the 1st discharge stacker concerning the present invention (moving downstream). The side view which shows the movement of the 1st discharge stacker concerning the present invention (moving downstream). The side view which shows the movement of the 1st discharge stacker concerning the present invention (moving downstream). The side view which shows the movement of the 1st discharge stacker concerning the present invention (upstream end rise). The side view which shows the movement of the 1st discharge stacker concerning the present invention (upstream end rise). The side view which shows the movement of the 1st discharge stacker concerning the present invention (upstream end rise). The side view which shows the movement of the 1st discharge stacker concerning the present invention (upstream end rise). The side view which shows the movement of the 1st discharge stacker concerning the present invention (moving to the upstream side). The side view (2nd position) which shows the movement of the 1st discharge stacker concerning the present invention. The side view (closed state) which shows opening and closing of the 2nd discharge stacker concerning the present invention. The side view which shows opening and closing of the 2nd discharge stacker which concerns on this invention. The side view (open state) which shows opening and closing of the 2nd discharge stacker concerning the present invention. The side view which shows the 2nd position of the 1st discharge stacker concerning the present invention. The principal part enlarged plan view (cutting state) which shows the power transmission switching device which concerns on this invention. The principal part enlarged plan view (reverse rotation connection) which shows the power transmission switching apparatus which concerns on this invention. The principal part enlarged plan view (forward rotation connection) which shows the power transmission switching device which concerns on this invention. The top view which shows the power transmission switching apparatus in a prior art.

Explanation of symbols

2 Automatic feeding device 3 Printer body (recording device body) 4 Scanner device,
5 Feed tray, 6 Front panel, 7 LCD monitor screen, 8 Operation buttons,
9 Memory card insertion part, 10 Carriage, 11 Endless belt,
12 Carriage guide shaft, 13 Recording head, 14 Feeding roller,
15 edge guide, 16 hopper, 17 rotating shaft (for feeding roller),
18 roller holder (for driven roller for conveyance), 19 roller for conveyance,
19a Carrying drive roller, 19b Carrying driven roller, 20 Ejecting roller,
20a discharge driving roller, 20b first discharge driven roller,
22 discharge auxiliary driven roller, 26 recording position, 28 platen,
30 cassette for feeding, 50 stacker for discharging, 51 mounting surface,
100 inkjet printer (recording device), 110 recording unit, 120 discharging unit,
200 discharge stacker lifting device, 210 power transmission means, 211 first gear,
212 2nd gear, 213 3rd gear, 214 4th gear, 215 5th gear,
216 6th gear, 217 7th gear, 218 8th gear, 219 pinion,
220 base part, 221 first groove part, 222 second groove part, 223 third groove part,
224 4th groove part, 225 5th groove part, 226 6th groove part, 227 Rack,
228 attitude restriction part, 230 home position detector, 250 cover restriction part,
260 mounting opening, 270 power transmission shaft, 300 recording unit gap adjusting device,
301 PG adjustment cam part, 301a arc part, 301b string part, 302 camshaft,
303 lever contact portion, 304 lever member, 305 lever shaft,
400 power transmission switching device, 410 lock lever, 411 lock lever contact portion,
411a first regulating surface, 411b second regulating surface, 412 lever connecting portion,
413 Lock lever opening, 420 planetary gear holder, 420a gear holder base,
421 1st support part, 422 2nd support part, 423 1st planetary gear,
424 Second planetary gear, 425 Rotating fulcrum shaft (for sun gear), 426 Sun gear,
430 slide bar, 431 bar guide, 500 first discharge stacker,
501 first protrusion, 502 swing shaft, 503 second discharge driven roller, 504 second protrusion,
510 first mounting portion, 520 contact surface, 521 contact protrusion,
522 CD-R tray guide opening, 523 CD-R tray guide surface,
600 second discharge stacker, 601 cover shaft, 610 second mounting portion,
700 connecting arm portion, 701 third protrusion, 800 discharge frame portion, 801 fourth protrusion,
802 5th projection, 900 conventional power transmission switching device, 901 sun gear,
902 planetary gear, 903 planetary lever, 904 first passive gear, 905 second passive gear,
906 Locking means, 907 rotation shaft, C ink cartridge, P paper (recording material),
Q CD-R tray, X main scanning direction, Y sub-scanning direction, PG gap

Claims (5)

A sun gear provided on the upstream side in the power transmission direction, two planetary gears circumscribing the sun gear and transmitting power downstream in the power transmission direction, and a driven force circumscribing one of the planetary gears and transmitting the power A power transmission switching device comprising a transmission gear,
A planetary gear holder portion rotatably holding the two planetary gears and rotatably provided about a rotation shaft of the sun gear;
A lock member capable of coming into contact with the planetary gear holder portion,
The lock member is configured to engage with the planetary gear holder part and rotate and lock the planetary gear holder part to a position where none of the two planetary gears circumscribes the driven transmission gear. A power transmission switching device characterized by comprising: The lock member according to claim 1,
An opening elongated in one direction through which the rotating shaft of the sun gear is inserted;
A contact portion provided at the end of the lock member in the longitudinal direction of the opening,
The contact portion is intermediate between the support portions of the two planetary gears in the planetary gear holder portion, and abuts and engages with each of the two support portions to regulate the attitude of the planetary gear holder portion. A power transmission switching device characterized by being configured. In Claim 1 or 2, the lock member comprises a connecting portion on the side opposite to the side on which the contact portion is provided,
The power transmission switching device, wherein the connecting portion is rotatably connected to a reciprocating slide member. A recording apparatus for recording ink on a first medium and a second medium by discharging ink from a recording head provided in a recording unit,
A motor that is a power source of a discharge drive roller that moves the recorded first medium and second medium in the transport direction;
Using the driving force of the motor, the discharge stacker is guided to the recording unit at the first position where the recorded first medium is stacked, and the first medium and the second medium, and A discharge stacker elevating device for moving to a second position for receiving the recorded first medium and second medium;
A power transmission switching device for switching power transmission from the motor to the discharge stacker lifting device,
A recording apparatus comprising the power transmission switching device according to any one of claims 1 to 3. A liquid ejecting apparatus that ejects liquid from a liquid ejecting head provided in a liquid ejecting unit to a first medium and a second medium,
A motor that is a power source of a discharge drive roller that moves the first medium and the second medium on which the liquid is ejected in the transport direction;
Using the driving force of the motor, the discharge stacker guides the first position where the first medium on which the liquid is ejected is stacked, and the first medium and the second medium to the liquid ejecting unit. And a discharge stacker lifting / lowering device for moving the first medium and the second medium on which the liquid is jetted to a second position for receiving the first medium and the second medium,
A power transmission switching device for switching power transmission from the motor to the discharge stacker lifting device,
The power transmission switching device includes the power transmission switching device according to any one of claims 1 to 3.

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