JP5974365B2 - Recording device - Google Patents

Description

  The present invention relates to a recording apparatus including a driving roller for transporting a transported medium that can hold the recording medium.

  Conventionally, as an example of a recording apparatus that can perform recording on a sheet-like recording medium such as a sheet of paper or an optical disk that is a plate-like recording medium, an ink jet printer (hereinafter simply referred to as an ink jet printer) "Printer").

  When recording on paper or the like in such a printer, it is common to convey the paper toward the recording unit by rotation of the driving roller while pinching the paper between a driving roller and a driven roller provided in the conveyance path. It is. When recording on a recording medium such as an optical disk, the recording medium is placed on a plate-shaped disk tray, and the disk tray is manually inserted along the transport path to the apparatus main body. It was set (for example, Patent Document 1).

JP 2005-144932 A

  By the way, when such a disc tray is manually inserted along the conveyance path, the tip of the disc tray may collide with the peripheral surface of the drive roller. At this time, if the driving roller stops rotating, a large force is required to insert the disc tray into the position where it can be transported by the driving roller toward the recording unit while being in sliding contact with the peripheral surface of the driving roller. Needed.

  That is, when a recording medium is held on a medium to be transported such as a disk tray and then set on the apparatus main body, a large force is required to manually feed the medium to be transported to a position that can be transported by a driving roller. There are challenges. Such a problem is not limited to an ink jet printer, but is generally common in recording apparatuses including a driving roller for transporting a transported medium holding a recording medium.

  The present invention has been made in view of such circumstances, and an object of the present invention is to perform recording capable of reducing the force required to manually feed a transported medium holding a recording medium to a position that can be transported by a driving roller. To provide an apparatus.

  A recording apparatus that solves the above problems includes a recording unit that performs recording on a recording medium, a driving roller that transports a transported medium capable of holding the recording medium toward the recording unit, and a driving roller. A motor for applying a rotational force, a transported medium detection unit capable of detecting insertion / extraction of the transported medium with respect to a transport path extending toward the recording unit, and that the transported medium is inserted into the transport path. And a motor control unit that applies, to the motor, an assist voltage for applying a rotational assist force that is smaller than the rotational load of the drive roller to the drive roller when detected by the transported medium detection unit.

  According to this configuration, when the transported medium is inserted into the transport path, the motor control unit applies an assist voltage to the motor, so that a rotational assist force smaller than the rotational load is applied to the drive roller. Then, the tip of the medium to be transported manually inserted in the transport path is slidably brought into contact with the peripheral surface of the drive roller while applying a force corresponding to the difference between the rotational load of the drive roller and the rotation assist force. The roller rotates. For this reason, the load accompanying the insertion of the medium to be transported is lower than when the medium to be transported is brought into sliding contact with the driving roller that is stopped without applying a voltage to the motor. Therefore, it is possible to reduce the force required to manually feed the medium to be conveyed holding the recording medium to a position where the medium can be conveyed by the driving roller.

  In the recording apparatus, the assist voltage is calculated based on a voltage value when the drive roller rotates by a preset rotation amount and an assist ratio preset as a ratio of the rotation assist force to the rotation load. It is preferable to further include an assist voltage calculation unit for calculating.

  According to this configuration, the assist voltage calculation unit calculates the assist voltage based on the voltage value when the drive roller actually rotates. The rotational assist force can be applied with a more accurate assist ratio.

  In the recording apparatus, the motor control unit may end the application of the assist voltage when the rotation amount after the application of the assist voltage to the motor reaches a predetermined amount. preferable.

  According to this configuration, when the motor control unit finishes applying the assist voltage, the insertion load of the transported medium becomes higher than when the assist voltage is applied. Therefore, by setting the rotation amount of the driving roller accompanied by the rotation assist force to a rotation amount corresponding to the distance to the position to be manually inserted, the user can perceive the position at which insertion by manual insertion is finished.

  In the recording apparatus, when the rotation detection unit detects the rotation position of the motor and the conveyance medium detection unit detects that the conveyance medium is inserted into the conveyance path, the rotation detection unit A rotation position acquisition unit that acquires the detected rotation position of the motor as a reference rotation position; and another mechanism that operates by driving of the motor; and the motor control unit includes: When the transported medium detection unit detects that the medium has been extracted from the path, it is preferable to drive the motor until it returns to the reference rotation position.

  According to this configuration, when the transported medium is extracted, the rotational position of the motor can be returned to the reference rotational position acquired by the rotational position acquisition unit. For this reason, even when the motor rotates as a result of re-insertion, the influence on other mechanisms that operate by driving the motor can be suppressed.

  In the recording apparatus, the other mechanism includes a cap capable of contacting a fluid ejecting head constituting the recording unit so as to surround a fluid ejecting nozzle formed in the fluid ejecting head, and an inside of the cap. A maintenance mechanism for the recording unit having a suction pump capable of suction, and when the motor rotates in a first direction, the drive roller rotates in a direction corresponding to the first direction and the transported When the medium is transported in a discharge direction away from the recording unit and the motor rotates in a second direction opposite to the first direction, the driving roller corresponds to the second direction. It is preferable that the medium to be conveyed is conveyed in the conveying direction toward the recording unit and the suction pump sucks the inside of the cap.

  According to this configuration, the suction pump may be driven when the motor rotates in the reverse direction as the transported medium is inserted. However, the motor control unit returns the rotation position of the motor to drive the suction pump. The influence by can be suppressed.

  In the recording apparatus, when the recording medium is the first recording medium and the driving roller is the first driving roller, the second recording medium is more flexible than the first recording medium. A second driving roller for conveying the recording medium toward the recording unit, and when the motor rotates in the first direction, the first driving roller is recorded by the recording unit. It is preferable to function as a discharge driving roller for discharging the second recording medium subjected to the above operation to the outside of the apparatus main body.

  According to this configuration, the first drive roller for transporting the transported medium toward the recording unit functions as a discharge drive roller for discharging the second recording medium on which recording has been performed to the outside of the apparatus main body. . Therefore, the transported medium holding the first recording medium and the second recording medium can be transported by the same first drive roller.

1 is a perspective view of a recording apparatus according to an embodiment. FIG. 3 is a cross-sectional view of a recording apparatus when recording on paper. Sectional drawing of the recording device in the case of recording with respect to an optical disk. FIG. 4 is a cross-sectional view illustrating a schematic configuration of a recording apparatus in a cross section taken along line 4-4 in FIG. FIG. 3 is a block diagram showing an electrical configuration of the recording apparatus. 7 is a flowchart showing a disc tray acceptance control routine. The flowchart which shows an assist control routine. Constant table used for assist control.

Hereinafter, an embodiment in which the recording apparatus of the present invention is embodied in an ink jet printer will be described with reference to the drawings.
As shown in FIG. 1, the printer 11 according to the present embodiment is provided on an optical disk D that is an example of a first recording medium and a sheet P that is an example of a second recording medium having higher flexibility than the optical disk D. It is an example of the recording device which can record with respect to.

  The printer 11 includes a device body 12 having a substantially rectangular parallelepiped shape. A manual feed cover 13 is attached to an upper portion of the rear portion of the apparatus main body 12 so as to be openable and closable. The manual feed cover 13 is opened when the paper P is manually fed into the apparatus main body 12 one by one, and is closed when the paper P is not fed manually. .

  An operation panel unit 14 is disposed on the front side of the apparatus main body 12. A display unit (for example, a liquid crystal display) 15 and an operation unit (for example, operation buttons) 16 for displaying a menu screen and the like are provided on the front side of the operation panel unit 14.

  The operation unit 16 is instructed to start recording on the recording medium, a disk selection button 16a for selecting the optical disk D as the recording medium, a paper selection button 16b for selecting the paper P as the recording medium. And a recording start button 16c.

  The operation panel unit 14 is attached to the apparatus main body 12 so as to be openable and closable so that the lower end side is rotated forward by a rotation mechanism such as a hinge provided on the upper end side. An opening / closing unit 17 is provided below the operation panel unit 14 on the front side of the apparatus main body 12. The opening / closing part 17 is attached to the apparatus main body 12 so as to be openable and closable so that the upper end side is rotated forward by a rotation mechanism such as a hinge provided on the lower end side.

  In the apparatus main body 12, a medium receiving tray 18 that is movable back and forth in the forward / backward direction along the front-rear direction Y is accommodated. As shown in FIG. 1, when the operation panel unit 14 and the opening / closing unit 17 are opened, the discharge port 12 a opens on the front side of the apparatus main body 12. The medium receiving tray 18 can protrude forward from the apparatus main body 12 through the discharge port 12a from the state of being accommodated in the apparatus main body 12.

  A medium receiving surface 19 capable of receiving the paper P discharged from the apparatus main body 12 is provided on the upper surface side of the medium receiving tray 18. On the leading end side that can protrude from the apparatus main body 12 in the advance / retreat direction of the medium receiving tray 18, a protruding shape that protrudes upward from the medium receiving surface 19 to both ends in the width direction X intersecting the advance / retreat direction and the vertical direction Z The part 20 is projected.

  The two ridge-shaped portions 20 are recessed so that a pair of groove-shaped guide portions 21 extend in the advancing and retreating direction and the openings are opposed to each other. The pair of guide portions 21 form a transport path Rd of a rectangular plate-shaped disc tray 22 as an example of a transported medium configured separately from the printer 11. That is, the medium receiving tray 18 functions as a guide member that guides insertion of the disc tray 22 that can hold the optical disc D, in addition to functioning as a discharge tray that receives the discharged paper P.

  A lever 23 that is displaced by insertion / extraction of the disk tray 22 is attached to one raised portion 20 (right side in FIG. 1) of the medium receiving tray 18 so as to protrude into the transport path Rd. A tray detection unit 24 as an example of a transported medium detection unit is attached to the raised portion 20 on the side where the lever 23 is provided. The tray detection unit 24 outputs an OFF signal when the lever 23 is not displaced, and outputs an ON signal when the displacement of the lever 23 accompanying the insertion of the disc tray 22 is detected. That is, the tray detection unit 24 can detect the insertion / extraction of the disc tray 22 with respect to the transport path Rd by detecting the displacement of the lever 23.

  The disk tray 22 has a mounting portion 25 in which the optical disk D can be mounted in the vicinity of the center on the upper surface side thereof. Further, a notch 26 extending in the insertion / removal direction of the disc tray 22 (the front-rear direction Y in the present embodiment) is formed on one end side (the right end side in FIG. 1) in the width direction X of the disc tray 22. The notch 26 has a first end 26 a located on the front end side in the insertion direction of the disc tray 22 and a second end 26 b located on the rear end side in the insertion direction of the disc tray 22.

  As shown in FIG. 2, a paper cassette 27 that can store a plurality of papers P is detachably attached to the inner bottom portion of the apparatus main body 12. The sheet cassette 27 can be attached to and detached from the apparatus main body 12 when the opening / closing part 17 is opened as shown in FIG. Note that the printer 11 is initially set so that the paper P stored in the paper cassette 27 is fed as a recording medium unless otherwise specified. Further, when the sheets P are manually fed into the apparatus main body 12 one by one, as shown in FIG. 2, the manual feed cover 13 is opened to expose the sheet feeding port 12b.

  A guide plate 28 for guiding the forward and backward movement of the medium receiving tray 18 is disposed above the mounting position of the paper cassette 27 in the apparatus main body 12. The apparatus main body 12 houses a recording unit 30 that records on the paper P and the optical disc D, and a transport mechanism 31 that transports the paper P and the disc tray 22 toward the recording unit 30. Yes.

Here, the configuration of the recording unit 30 will be described.
In the apparatus main body 12, guide shafts 32 extending between both side walls of the apparatus main body 12 are extended along a width direction X (a direction orthogonal to the paper surface in FIG. 2) intersecting the conveyance direction of the paper P. A carriage 33 is held on the guide shaft 32 in a state in which the guide shaft 32 can reciprocate in the width direction X, which is the main scanning direction, along the guide shaft 32.

  A pair of pulleys 35 (only one pulley is shown in FIG. 1) supported by a support wall 34 in the apparatus main body 12 are arranged behind the carriage 33 so as to be aligned in the width direction X. One pulley 35 is attached with a drive shaft of a carriage motor 36. The carriage 33 is fixed to an endless timing belt 37 wound around both pulleys 35. The carriage motor 36 is driven in the forward and reverse directions, and the timing belt 37 is rotated forward and backward, whereby the carriage 33 reciprocates in the main scanning direction.

  A linear encoder 38 for grasping the position of the carriage 33 in the main scanning direction is provided at the rear portion of the carriage 33. The linear encoder 38 includes a code plate 39 having a large number of slits that open at a constant pitch along the main scanning direction, and a light receiving unit 41 that receives light emitted from the light projecting unit 40 and the light projecting unit 40 and passed through the slit. And a carriage sensor 42 having. When the carriage 33 moves in the main scanning direction, the linear encoder 38 outputs a pulse signal having a pulse number proportional to the moving distance of the carriage 33 and a cycle inversely proportional to the moving speed of the carriage 33.

  An ink cartridge 43 containing ink, which is an example of a fluid, is detachably mounted on the upper front side of the carriage 33. A fluid ejecting head 44 capable of ejecting ink stored in the ink cartridge 43 is supported on the lower surface side of the carriage 33. Further, a support member 45 that supports the paper P conveyed by the conveyance mechanism 31 is disposed at a position facing the lower surface of the fluid ejecting head 44 in the front-rear direction Y. Then, recording is performed by ejecting ink droplets from the fluid ejecting head 44 onto a recording medium such as the paper P transported onto the support member 45 by the transport mechanism 31.

  A gap adjusting mechanism 46 (only one gap adjusting mechanism is shown in FIG. 2) for changing the height of the fluid ejecting head 44 is provided on both ends of the guide shaft 32 that holds the carriage 33. The gap adjusting mechanism 46 changes the positions of the guide shaft 32 and the fluid ejecting head 44 in the vertical direction Z in order to adjust the separation distance (gap) between the fluid ejecting head 44 and the support member 45.

Next, the configuration of the transport mechanism 31 will be described.
The transport mechanism 31 includes a feeding unit 49 that feeds the sheet P introduced into the apparatus main body 12 through the sheet feeding port 12 b and the sheet P stored in the sheet cassette 27 toward the recording unit 30.

  The feeding unit 49 includes a feeding driving roller 50 disposed below the sheet feeding port 12b, a feeding driven roller 51 that rotates while being driven with the paper P sandwiched between the feeding driving roller 50, and a separation roller. 52. Further, a conveyance path forming member 53 extending from the feed driving roller 50 toward the recording unit 30 is disposed between the recording unit 30 and the paper cassette 27 in the vertical direction Z. A pickup roller 54 for feeding the uppermost sheet P among the plurality of sheets P stored in the sheet cassette 27 toward the separation roller 52 is disposed below the transport path forming member 53. ing.

  A conveyance roller pair 55 is disposed between the support member 45 and the feeding unit 49 in the conveyance path of the paper P toward the recording unit 30. The transport roller pair 55 is driven and rotated by sandwiching the paper P between the transport drive roller 56 and the transport drive roller 56 which is an example of a second drive roller for transporting the paper P toward the recording unit 30. It is comprised with the conveyance driven roller 57 to perform. The transport driven roller 57 is rotatably supported on the distal end side of the rotation support member 58 supported on the apparatus main body 12 at the base end side.

  A discharge roller pair 59 for discharging the sheet P on which recording has been performed by the recording unit 30 to the outside of the apparatus main body 12 is provided between the support member 45 and the discharge port 12a in the transport path Rd extending in the front-rear direction Y. ing. The pair of discharge rollers 59 includes a drive roller and a discharge drive roller 60 that is an example of a first drive roller, and a discharge driven roller 61 that is driven to rotate while sandwiching the paper P between the discharge drive roller 60. Is done. A plurality of transport drive rollers 56 and discharge drive rollers 60 are provided so as to be aligned in the width direction X.

  The conveyance drive roller 56 and the discharge drive roller 60 convey the paper P in the conveyance direction from the feeding unit 49 toward the discharge port 12a by rotating in the forward rotation direction that is clockwise in FIG. On the other hand, when the paper P is reversed, the transport driving roller 56 and the discharge driving roller 60 are rotated in the reverse direction which is the counterclockwise direction in FIG. 2, thereby transporting the paper P in the direction opposite to the transport direction.

  The discharge driven roller 61 is rotatably supported by a roller support portion 62 disposed so as to extend in the width direction X above the discharge drive roller 60. The discharge driven roller 61 is a serrated roller having teeth on the outer periphery so that the contact area with respect to the paper P to which ink is attached becomes small.

  The roller support portion 62 is held in a state in which movement in the front-rear direction Y along the transport path Rd is restricted while movement in a predetermined range in the up-down direction Z is possible. And the release part 63 is provided in the front end side used as the edge part by the side of the discharge port 12a of the roller support part 62. As shown in FIG. A plurality (two in this embodiment) of the release parts 63 are provided so as to be aligned in the width direction X. The release portion 63 includes a release swing member 64 whose base end is rotatably supported by the roller support portion 62, and a press driven roller 65 rotatably attached to the distal end side of the release swing member 64. have.

  The release part 63 hangs down under its own weight when no external force is applied. At this time, the lower end surface of the pressure driven roller 65 is positioned below the upper end surface of the discharge driving roller 60. On the other hand, when an external force is applied to the release portion 63, the release swing member 64 swings in the direction in which the external force is applied. Further, in the roller support portion 62, a swing restricting portion 66 that restricts the swing of the release swing member 64 to the rear is formed on the rear side of the release portion 63 that is the recording portion 30 side.

  When the paper selection button 16 b of the operation panel unit 14 is operated, the operation panel unit 14 and the opening / closing unit 17 are displaced from the closed state to the open state, and the medium receiving tray 18 protrudes forward of the apparatus main body 12. Subsequently, when the recording start button 16c is operated, the feeding of the paper P by the feeding unit 49 is started, and the recording unit 30 performs recording on the fed paper P. Further, the sheet P on which the recording has been performed is conveyed toward the discharge port 12a as the discharge roller pair 59 rotates in the forward rotation direction.

  When the leading edge of the paper P comes into contact with the press driven roller 65, the release swing member 64 pressed by the paper P swings forward. Then, the paper P receives a reaction force from the pressure driven roller 65, and the leading end thereof is lowered forward, and is discharged onto the medium receiving surface 19 of the medium receiving tray 18 as the discharge driving roller 60 rotates.

  On the other hand, when the disk selection button 16a of the operation panel unit 14 is operated, the opening / closing unit 17 is displaced to the closed state and the medium receiving tray 18 is accommodated in the apparatus main body 12 as shown in FIG.

  When the disc tray 22 is manually inserted along the transport path Rd, the tip of the disc tray 22 comes into contact with the pressure driven roller 65. Subsequently, when the release rocking member 64 to be swung rearward comes into contact with the rocking restriction part 66 of the roller support part 62, the rear rocking of the release rocking member 64 is restricted, and the disk tray The roller support 62 is moved upward by the pressing force 22. As a result, the discharge driven roller 61 is separated from the discharge drive roller 60, so that contact between the discharge driven roller 61, which is a serrated roller, and the optical disc D is avoided.

  Then, by inserting the disc tray 22 in sliding contact with the peripheral surface of the discharge drive roller 60, the disc tray 22 is sandwiched between the press driven roller 65 and the discharge drive roller 60. Thus, the discharge drive roller 60 is provided at a position in the middle of the transport path Rd of the disc tray 22 extending toward the recording unit 30.

  Subsequently, when the recording start button 16 c is operated, the discharge driving roller 60 rotates in the reverse direction, and the disc tray 22 holding the optical disc D is conveyed toward the recording unit 30. That is, the discharge drive roller 60 rotates while contacting the disc tray 22, thereby conveying the disc tray 22 holding the optical disc D toward the recording unit 30.

  When the leading end side in the transport direction is sandwiched between the transport roller pair 55, the disk tray 22 is transported to the recording start position as the discharge drive roller 60 and the transport drive roller 56 rotate in the reverse direction. The recording start position is set to a position where the optical disc D is arranged behind the fluid ejecting head 44. For this reason, the transport path Rd of the disc tray 22 and the transport path when the paper P is transported along the front-rear direction Y are substantially the same.

  Then, the disk tray 22 is transported to the recording start position by the transport mechanism 31, whereby the setting (loading) of the optical disk D to the apparatus main body 12 is completed. When the loading of the optical disk D is completed, the disk tray 22 is transported toward the recording unit 30 as the discharge drive roller 60 and the transport drive roller 56 rotate in the forward rotation direction. Further, the recording unit 30 performs recording on the optical disc D held on the transported disc tray 22.

Here, the detection of the disk tray 22 in the apparatus main body 12 will be described.
As shown in FIG. 4, when the disc tray 22 is inserted into the guide portion 21 of the medium receiving tray 18 and the tip thereof displaces the lever 23, the tray detection portion 24 outputs an ON signal.

  From this state, after the disc tray 22 is further inserted into the inner flange side of the apparatus main body 12 and is sandwiched between the press driven roller 65 and the discharge drive roller 60, the lever 23 is formed on the disc tray 22. It passes through the first end portion 26 a of the cutout portion 26. Then, the pressing by the disc tray 22 is released and the lever 23 returns to the original position, so that the signal output from the tray detection unit 24 changes from the ON signal to the OFF signal. That is, the tray detection unit 24 detects the position of the disk tray 22 in the apparatus main body 12 by detecting the passage of the first end portion 26 a formed by the cutout portion 26 of the disk tray 22.

Next, other mechanisms provided in the printer 11 will be described.
In the apparatus main body 12, one end side (right end side in FIG. 4) of the movement range along the main scanning direction of the carriage 33 is a home position HP. On the other hand, the vicinity of the center of the moving range along the main scanning direction of the carriage 33 is a recording area PA where recording is performed by the recording unit 30.

  A maintenance mechanism 70 for performing maintenance of the fluid ejecting head 44 is disposed at the home position HP. The maintenance mechanism 70 is an example of another mechanism, and includes a bottomed box-like cap 71 that opens upward, an elevating device 72 for raising and lowering the cap 71, and a suction pump 73 that can suck the inside of the cap 71. , A waste liquid tank 74 and a carriage lock mechanism 75 are provided.

  An upstream end side of a flexible discharge tube 76 is connected to the bottom of the cap 71. Further, the downstream end side of the discharge tube 76 is introduced into the waste liquid tank 74. Further, a suction pump 73 is disposed in the middle of the discharge tube 76.

  The suction pump 73 includes a pair of rotating rollers 73a that can press the discharge tube 76, and a pump wheel 73b that rotates while holding the rotating rollers 73a. When the pump wheel 73b rotates in the forward direction, the rotation roller 73a rotates in the circumferential direction of the pump wheel 73b while sequentially crushing the intermediate portion of the discharge tube 76 from the upstream side to the downstream side. Thereby, the inside of the discharge tube 76 on the upstream side of the suction pump 73 is decompressed, and the inside of the cap 71 is sucked. On the other hand, when the pump wheel 73b rotates in the reverse direction, the pressing of the discharge tube 76 by the rotation roller 73a is released, and the reduced pressure state in the discharge tube 76 is eliminated.

  When the cap 71 is moved up by the elevating device 72 when the carriage 33 is disposed at the home position HP, the cap 71 forms a closed space surrounding the fluid ejecting nozzle 44 a formed in the fluid ejecting head 44. It contacts the fluid ejecting head 44. When recording by the recording unit 30 is not performed, the cap 71 is brought into contact with the fluid ejecting head 44 and the fluid ejecting nozzle 44a is placed in the closed space as described above in order to suppress drying of the fluid ejecting nozzle 44a. A capping to seal is performed.

  Further, when the suction pump 73 is driven in a state where capping by the cap 71 is performed, the air in the closed space surrounded by the cap 71 is sucked. Then, a negative pressure is generated in the cap 71, and bubbles or the like in the fluid ejecting head 44 are discharged together with the ink by this negative pressure. In this manner, suction cleaning, which is one of the maintenance operations of the fluid ejecting head 44, is performed by the suction pump 73. Then, after the suction cleaning is performed, the pump wheel 73b rotates in the reverse direction to eliminate the negative pressure in the cap 71. Thereby, the cap 71 can be moved downward.

  When the carriage 33 is arranged at the home position HP, the carriage lock mechanism 75 restricts the movement of the carriage 33 along the main scanning direction. The carriage lock mechanism 75 includes a lock member 77 that can be engaged with a recess 33 a formed in the carriage 33, a displacement mechanism 78 that displaces the lock member 77 in a direction protruding toward the carriage 33, and a recess in the lock member 77. And a carriage lock detector 79 for detecting engagement with 33a.

  The carriage lock detection unit 79 outputs an ON signal when the lock member 77 is engaged with the recess 33a, and outputs an OFF signal when the lock member 77 is not engaged with the recess 33a.

  A DC motor 82, which is an example of a motor that applies a rotational force to the discharge drive roller 60, is provided behind the maintenance mechanism 70 in the apparatus main body 12. The DC motor 82 is a common power source for the transport mechanism 31, the maintenance mechanism 70, and the gap adjustment mechanism 46. A rotary encoder 84, which is an example of a rotation detection unit that detects the rotational position of the DC motor 82, is attached to the output shaft 83 of the DC motor 82.

  The rotary encoder 84 includes a disk 85 having a large number of slits that open at a constant pitch along the circumferential direction, and a photodetector 86 that emits light to the disk 85 and detects light passing through the slits. Then, when the output shaft 83 rotates, the rotary encoder 84 outputs a pulse signal having a pulse number proportional to the rotation amount of the output shaft 83 and a cycle inversely proportional to the rotation speed of the output shaft 83.

  Connected to the output shaft 83 of the DC motor 82 is a power transmission switching mechanism 87 for switching the power transmission destination to another mechanism that operates by driving the DC motor 82. In this embodiment, the power transmission switching mechanism 87 switches the power transmission destination to any one of the gap adjustment mechanism 46, the pickup roller 54, the lifting device 72, and the suction pump 73.

  The power transmission switching mechanism 87 normally selects the pickup roller 54 as a power transmission destination. For example, when the type of the recording medium is changed, the power transmission switching mechanism 87 switches the power transmission destination from the pickup roller 54 to the gap adjusting mechanism 46. Then, the gap adjusting mechanism 46 operates by driving the DC motor 82, and the height of the fluid ejecting head 44 is adjusted according to the selected recording medium.

  For example, when the optical disk D is selected as the recording medium, the gap adjusting mechanism 46 moves the guide shaft 32 upward so that the separation distance between the upper surface of the optical disk D and the lower surface of the fluid ejecting head 44 is appropriately secured. Move to. On the other hand, since the paper P is thinner than the optical disk D, when the recording medium is changed from the optical disk D to the paper P, the gap adjusting mechanism 46 moves the guide shaft 32 downward.

  Further, when the carriage 33 is disposed at the home position HP, the power transmission switching mechanism 87 switches the power transmission destination to the lifting device 72. In this case, when the DC motor 82 is driven in the forward direction (first direction), the cap 71 is moved upward and capping is performed, while the DC motor 82 is moved in the reverse direction (reverse to the first direction). When driven in the second direction), the cap 71 moves downward to release capping.

  When capping by the upward movement of the cap 71 is completed, the power transmission switching mechanism 87 switches the power transmission destination from the lifting device 72 to the suction pump 73. When the DC motor 82 is driven in the reverse direction (second direction) while capping is being performed, the pump wheel 73b of the suction pump 73 rotates in the forward direction and suction cleaning is performed. On the other hand, when the DC motor 82 is driven in the forward direction (first direction) while capping is being performed, the pump wheel 73b rotates in the reverse direction and the reduced pressure state in the discharge tube 76 is eliminated. .

  However, the power transmission path from the DC motor 82 to the feeding drive roller 50, the transport drive roller 56, and the discharge drive roller 60 is always connected regardless of the switching operation of the power transmission switching mechanism 87. Therefore, when the DC motor 82 rotates in the forward direction (first direction) when the paper P is present on the transport path, the transport driving roller 56 transports the paper P toward the recording unit 30, and The discharge driving roller 60 discharges the paper P on which recording has been performed by the recording unit 30 to the outside of the apparatus main body 12.

  Further, when the DC motor 82 rotates in the reverse direction (second direction) when the disc tray 22 is sandwiched between the press driven roller 65 and the discharge drive roller 60, the discharge drive roller 60 rotates in the reverse direction. The disc tray 22 is rotated in the direction corresponding to the second direction and is conveyed in the conveying direction toward the recording unit 30. On the other hand, when the DC motor 82 rotates in the forward direction (first direction) when the disc tray 22 is sandwiched between the pressure driven roller 65 and the discharge drive roller 60, the discharge drive roller 60 rotates in the forward direction. The disc tray 22 is rotated in the direction (the direction corresponding to the first direction) to be separated from the recording unit 30 and conveyed in the discharge direction toward the discharge port 12a.

  By the way, the disc tray 22 is sandwiched between the press driven roller 65 and the discharge drive roller 60, so that the disc tray 22 can be carried by the carrying mechanism 31. Therefore, the disk tray 22 needs to be inserted manually until the position between the pressing driven roller 65 and the discharge driving roller 60. At this time, since the discharge driving roller 60 is not rotating, the load at the time of insertion becomes particularly high when the tip of the manually inserted disc tray 22 collides with the peripheral surface of the discharge driving roller 60.

  Therefore, in the printer 11, when the tray detection unit 24 detects that the disc tray 22 has been inserted into the transport path, a rotation assist force smaller than the rotation load of the discharge drive roller 60 is applied to the discharge drive roller 60. Assist control is performed. The discharge drive roller 60 does not rotate only by applying the rotation assist force, but rotates when an external force corresponding to the difference between the rotation load and the rotation assist force is applied. That is, the force required to insert the disc tray 22 is reduced by the amount of rotation assist force applied by the assist control.

  Further, when the DC motor 82 rotates in the reverse direction as the disc tray 22 is inserted, there is a possibility that another mechanism selected as the power transmission destination is driven. For example, the disk tray 22 is inserted / removed when recording in the recording unit 30 is not performed. At this time, the carriage 33 is disposed at the home position HP. Therefore, there is a high possibility that the power transmission path of the DC motor 82 is connected to the suction pump 73, and the suction pump 73 may be driven to suck by the rotation of the DC motor 82 in the reverse direction.

  Note that the suction pump 73 may not be driven by the rotation of the DC motor 82 accompanying the single insertion of the disk tray 22. However, if the insertion / removal of the disk tray 22 is repeated many times, the rotation amount of the DC motor 82 increases, and the suction pump 73 may be driven to suck the ink in the fluid ejecting head 44 wastefully.

  Therefore, in the printer 11, when the disc tray 22 inserted by manual feeding is extracted before loading, the rotational position of the DC motor 82 is set to the position (reference) before the disc tray 22 is inserted each time. Return control for returning to the rotational position) is performed. That is, the DC motor 82 is driven by the return control in order to return the rotational position of the DC motor 82 rotated in the reverse direction as the disc tray 22 is inserted.

Next, the electrical configuration of the printer 11 will be described.
As shown in FIG. 5, the printer 11 includes a control device 100. The control device 100 controls the printer 11 in an integrated manner.

  The control device 100 is connected to the operation unit 16 of the operation panel unit 14, the carriage lock detection unit 79, the tray detection unit 24, the linear encoder 38, and the rotary encoder 84 as an input system. The control device 100 is connected to the display unit 15 of the operation panel unit 14, the fluid ejecting head 44, the carriage motor 36, and the DC motor 82 as an output system.

  The control device 100 includes a computer 101, a display driver 102, a head control unit 103, a first motor drive circuit 104, and a second motor drive circuit 105. The computer 101 includes a main control unit 110, a ROM 111, a RAM 112, a nonvolatile memory 113, a first motor control unit 114, and a second motor control unit 115. The computer 101 also includes an assist voltage calculation unit 116, a rotation position acquisition unit 117, a carriage counter 118, a rotation position counter 119, an assist counter 120, and a timer 121. Note that the elements constituting the computer 101 and the control device 100 are connected to each other via a bus 122.

  The main control unit 110 performs display control of the display unit 15 via the display driver 102. Further, the main control unit 110 controls the ejection of ink droplets by drivingly controlling the fluid ejecting head 44 via the head control unit 103. The first motor control unit 114 drives and controls the carriage motor 36 via the first motor drive circuit 104. The second motor control unit 115 drives and controls the DC motor 82 via the second motor drive circuit 105.

  The RAM 112 temporarily stores calculation results of the main control unit 110 and the like, various data to be processed by executing the control program, and the like. The ROM 111 and the non-volatile memory 113 store a control program executed by the main control unit 110 and the like. The programs stored in the nonvolatile memory 113 include a disc tray receiving control routine shown in the flowchart in FIG. 6 and an assist control routine program shown in the flowchart in FIG. Further, the nonvolatile memory 113 stores a constant table T1 shown in FIG. The constant table T1 is referred to in the assist control routine.

  The assist voltage calculation unit 116 calculates an assist voltage to be applied to the DC motor 82 based on the voltage value V1 when the discharge driving roller 60 rotates by a preset rotation amount M1 and a preset assist ratio Na. To do. The assist ratio Na refers to the ratio of the rotational assist force to the rotational load of the discharge drive roller 60. In the present embodiment, the assist ratio Na is set to 75%.

  Further, the assist voltage refers to a voltage applied to the DC motor 82 in order to give the discharge drive roller 60 a rotation assist force that is smaller than the rotation load of the discharge drive roller 60. That is, by applying this assist voltage to the DC motor 82, the discharge drive roller 60 rotates when an external force according to the assist ratio Na is applied, but does not rotate when no external force is applied. Become. The rotation amount M1 and the assist ratio Na are described in the constant table T1.

  The rotation position acquisition unit 117 acquires, as the reference rotation position, the rotation position of the DC motor 82 detected by the rotary encoder 84 when the tray detection unit 24 detects that the disc tray 22 has been inserted into the transport path Rd. .

  The carriage counter 118 is reset when the carriage 33 is at the origin position (for example, the home position HP). In addition, every time an edge of a pulse signal output from the linear encoder 38 is detected after the reset, the count value is incremented or decremented according to the moving direction. Then, the main control unit 110 detects the movement position of the carriage 33 in the main scanning direction from the count value of the carriage counter 118.

  Each time the rotational position counter 119 detects the pulse edge of the pulse signal output from the rotary encoder 84, the rotational position counter 119 increments or decrements the count value according to the rotational direction. Then, the main control unit 110 and the second motor control unit 115 detect the rotation position and rotation amount of the DC motor 82 from the count value of the rotation position counter 119.

  The assist counter 120 increments the count value when the return control is executed. Further, this count value is reset when loading of the optical disk D is completed.

  The timer 121 starts timing when voltage application to the DC motor 82 is started in the assist control, and measures the elapsed time T when the voltage is applied to the DC motor 82. The timer 121 is reset when the assist control is finished.

  Next, a disc tray receiving control routine including assist control and return control executed by the computer 101 in the printer 11 configured as described above will be described with reference to the flowchart of FIG.

  First, in step S <b> 11, the main control unit 110 determines whether preparation for transporting the disk tray 22 is completed. As preparation for transporting the disc tray 22, the medium receiving tray 18 is accommodated in the apparatus main body 12 and the height of the fluid ejecting head 44 is adjusted by the gap adjusting mechanism 46, which is triggered by the operation of the disc selection button 16a. is there. If the preparation for transporting the disc tray 22 has not been completed, the process ends. On the other hand, if the preparation for transporting the disc tray 22 has been completed, the process proceeds to step S12.

  Next, in step S12, the main control unit 110 determines whether the carriage lock is performed, that is, whether the carriage lock detection unit 79 outputs an ON signal. If the carriage lock is not performed, the process is terminated. If the carriage lock is performed, the process proceeds to step S13.

  In step S13, the main control unit 110 determines whether or not the count value N of the assist counter 120 is less than 3. Then, when the count value N of the assist counter 120 is 3 or more, the process is terminated, whereas when the count value N of the assist counter 120 is smaller than 3, the process proceeds to step S14.

  In step S <b> 14, the main control unit 110 determines whether or not the OFF signal output from the tray detection unit 24 has changed to an ON signal, that is, whether or not the disc tray 22 has been inserted into the guide unit 21. When the OFF signal output from the tray detection unit 24 has not changed to the ON signal, the process proceeds to step S18, whereas when the OFF signal output from the tray detection unit 24 has changed to the ON signal, the process proceeds to step S15. .

  In step S15, the rotational position acquisition unit 117 acquires the current rotational position of the DC motor 82 detected by the rotary encoder 84 as the reference rotational position Lp, and the process proceeds to step S16.

In step S16, the computer 101 executes the assist control routine shown in FIG. 7, and the process proceeds to step S17.
In step S17, in response to the execution of the assist control in step S16, the main control unit 110 sets the assisted flag to “1”, and the process proceeds to step S18.

  In subsequent step S <b> 18, the main control unit 110 determines whether or not the ON signal output from the tray detection unit 24 has changed to an OFF signal, that is, whether or not the disc tray 22 has been removed from the guide unit 21. Then, when the ON signal output from the tray detection unit 24 has not changed to the OFF signal, the process is terminated, whereas when the ON signal output from the tray detection unit 24 has changed to the OFF signal, the process proceeds to step S19. .

  In step S19, the main control unit 110 determines whether or not the assisted flag is set to “1”, that is, whether or not the assist control is performed. Then, if the assisted flag is not set to “1”, the process ends. On the other hand, if the assisted flag is set to “1”, the process proceeds to step S20.

  In step S20, as the return control, the second motor control unit 115 drives the DC motor 82 until it returns to the reference rotation position Lp acquired in step S15, and the process proceeds to step S21.

In step S21, in response to the return control being executed in step S20, the assist counter 120 increments the count value N, and the process proceeds to step S22.
In the subsequent step S22, the main control unit 110 sets the assisted flag to “0” and ends the process.

  In the present embodiment, the assist control in step S16 is performed by the computer 101 executing the assist control routine shown in the flowchart of FIG.

Next, the contents of the assist control routine will be described with reference to FIG.
First, in step S30, the second motor control unit 115 drives the DC motor 82 in the reverse direction to rotate the discharge drive roller 60 in the reverse direction, and the process proceeds to step S31. When the second motor control unit 115 starts applying a voltage to drive the DC motor 82 in step S30, the timer 121 starts measuring the elapsed time T.

  In step S31, the second motor control unit determines whether or not the rotation amount M of the DC motor 82 has reached a preset rotation amount M1 from the reference rotation position Lp and the count value of the rotation position counter 119 acquired in step S15. 115 determines. Then, when the rotation amount M of the DC motor 82 reaches the preset rotation amount M1, the process proceeds to step S32. On the other hand, when the rotation amount M of the DC motor 82 does not reach the rotation amount M1, the rotation amount. Wait until M reaches the amount of rotation M1. The rotation amount M1 is set to 20EP (encoder pulse) that is assumed as the rotation amount necessary to rotate the stopped discharge driving roller 60 to reach a predetermined rotation speed.

  Next, in step S32, the assist voltage calculation unit 116 acquires the voltage value V1 when the DC motor 82 is driven by the rotation amount M1, that is, the voltage value when the discharge driving roller 60 is actually rotated at a predetermined rotation speed. Then, the process proceeds to step S33.

  In subsequent step S33, the assist voltage calculation unit 116 calculates the assist voltage value V2 based on the voltage value V1 acquired in step S32. That is, by multiplying the acquired voltage value V1 by the assist ratio Na, an assist voltage value V2 for applying a rotation assist force that does not rotate to the discharge drive roller 60 is calculated, and the process proceeds to step S34.

  In step S34, the second motor control unit 115 starts applying the assist voltage of the voltage value V2 to the DC motor 82, and the process proceeds to step S35. In step S34, after the second motor control unit 115 starts applying the voltage in step S30, the applied voltage value V1 is changed to the voltage value V2 without stopping the driving of the DC motor 82. That is, the discharge drive roller 60 rotates slightly during steps S30 to S32, but does not rotate without applying external force in step S34.

  In step S35, the second motor control unit 115 determines whether there is an assist control end command. For example, when there is an assist control end command due to operation of the operation unit 16 or the like, the process proceeds to step S39.

  In step S36, the second motor control unit 115 determines the presence or absence of interrupt control. For example, when there is an interrupt control such as recording on the paper P, the process proceeds to step S39. When there is no interrupt control, the process proceeds to step S37.

  In step S37, it is determined whether or not the elapsed time T from the start of voltage application by the second motor control unit 115 has reached an assist time Te that is a preset upper limit value. The assist time Te is described in the constant table T1. In the present embodiment, the assist time Te is set to 10,000 msec (10 seconds). If the elapsed time T exceeds the assist time Te, the process proceeds to step S39. If the elapsed time T has not reached the assist time Te, the process proceeds to step S38.

  Further, in step S38, it is determined whether or not the rotation amount M of the DC motor 82 after the second motor control unit 115 starts applying the assist voltage to the DC motor 82 has reached a preset specified amount Me. To do. The specified amount Me is described in the constant table T1. In the present embodiment, the prescribed amount Me is 300 EP (assuming the amount of rotation from when the disc tray 22 contacts the discharge drive roller 60 until the disc tray 22 is sandwiched between the press driven roller 65 and the discharge drive roller 60. Encoder pulse) is set.

  However, even when the DC motor 82 rotates by a predetermined amount Me, the notch 26 of the disk tray 22 does not reach the position where the lever 23 is provided, and the disk tray 22 maintains the state in which the lever 23 is displaced. ing. If the rotation amount M exceeds the specified amount Me, the process proceeds to step S39. If the rotation amount M has not reached the specified amount Me, the process returns to step S35.

  In step S39, the second motor control unit 115 ends the application of the assist voltage to the DC motor 82, and ends the assist control. That is, the second motor control unit 115 ends the application of the assist voltage when there is an assist control end command or an interrupt control. In addition, the second motor control unit 115 sets the rotation amount M after the preset assist time Te has elapsed or the application of the assist voltage to the DC motor 82 to the preset specified amount Me. Also when it reaches, the application of the assist voltage is terminated.

  As described above, when the assist control is executed and the disk tray 22 is not removed after that, the disk tray 22 is sandwiched between the pressure driven roller 65 and the discharge driving roller 60, and the transport mechanism 31. It becomes possible to carry by. Therefore, when the recording start button 16c is operated thereafter, the disc tray 22 is conveyed to the recording start position by driving the DC motor 82 in the reverse direction, and the optical disc D is loaded.

Next, the operation of the printer 11 configured as described above will be described.
In the printer 11, the DC motor 82 is a driving source for a plurality of mechanisms such as a maintenance mechanism 70 including a lifting device 72 and a suction pump 73 in addition to the transport mechanism 31. For this reason, when the insertion of the disk tray 22 is repeated many times and the DC motor 82 rotates in the reverse direction, the suction pump 73 is driven to suck the inside of the cap 71. There is a risk that it will operate without any action.

  In this regard, in the present embodiment, when the tray detection unit 24 detects that the disk tray 22 has been extracted from the transport path Rd, the second motor control unit 115 is acquired by the rotational position acquisition unit 117 as return control. The DC motor 82 is driven until it returns to the reference rotation position Lp. As a result, the rotational position of the DC motor 82 is returned to the position before the rotation by the insertion of the disk tray 22, so that even when the insertion and extraction of the disk tray 22 are repeated a plurality of times, the ink by driving the suction pump 73 is used. Suction is suppressed.

  In the present embodiment, when the tray detection unit 24 detects that the disc tray 22 has been inserted into the transport path Rd, the second motor control unit 115 applies an assist voltage to the DC motor 82. A rotation assist force is applied to the discharge drive roller 60. When a rotation assist force equivalent to 75% of the rotational load of the discharge drive roller 60 is applied, the discharge drive roller 60 rotates by inserting the disc tray 22 with a force of 25% of the rotational load. Reduced.

  The prescribed amount Me, which is one of the conditions for terminating the application of the assist voltage, is in a state of being sandwiched between the pressure driven roller 65 and the discharge drive roller 60 after the disc tray 22 contacts the discharge drive roller 60. It is set assuming the amount of rotation up to. Therefore, the disk tray 22 is inserted with a force of 25% of the rotational load until the position where the disk tray 22 comes into contact with the discharge drive roller 60 and becomes a state of being sandwiched between the pressure driven roller 65 and the discharge drive roller 60. be able to.

  On the other hand, when the disc tray 22 is sandwiched between the press driven roller 65 and the discharge drive roller 60, the application of the rotation assist force is finished and the insertion load is increased. Therefore, it is possible to detect the end timing of the manual feed operation by changing the insertion load so that the disc tray 22 is not inserted more than necessary into the inside of the apparatus main body 12.

  If the disc tray 22 is inserted deeply into the inside of the apparatus main body 12 by manual feeding, the lever 23 is moved to the first notch 26 when the disc tray 22 advances in the transport direction by assist control. It may pass through the end portion 26a. Then, since the signal output from the tray detection unit 24 changes from the ON signal to the OFF signal, the positive condition in Step S18 is satisfied even though the disk tray 22 is not removed. As a result, return control that is not required in step S20 is executed.

  When the signal of the tray detection unit 24 is changed to the OFF signal by the assist control that the DC motor 82 rotates in the reverse direction, the DC motor 82 is driven in the forward direction by the return control. Then, the disc tray 22 is transported in the ejection direction by the return control, and the lever 23 passes the first end portion 26a again, whereby the signal of the tray detection unit 24 changes from the OFF signal to the ON signal.

  The disc tray acceptance control routine is repeated until another interrupt control or operation of the recording start button 16c is performed. Therefore, when the signal output from the tray detection unit 24 changes to the ON signal by the return control as described above, the affirmative condition of step S14 is satisfied in the next disc tray acceptance control routine.

  Then, the disc tray 22 is transported in the transport direction by the assist control, the lever 23 passes the first end portion 26a again, the tray detection unit 24 outputs an OFF signal, and the return control is executed. The assist control and the return control are repeated. In this embodiment, the number of executions of the return control is counted by the assist counter 120 so that the repetition is not performed infinitely, and when the number of executions is 3 or more in step S13. The process is terminated.

According to the above embodiment, the following effects can be obtained.
(1) When the disc tray 22 is inserted into the transport path Rd, the second motor control unit 115 applies an assist voltage to the DC motor 82, so that a rotation assist force smaller than the rotation load is applied to the discharge drive roller 60. Is done. Then, the front end of the disc tray 22 manually inserted into the transport path Rd is slidably contacted with the peripheral surface of the discharge drive roller 60 while applying a force corresponding to the difference between the rotation load of the discharge drive roller 60 and the rotation assist force. By doing so, the discharge drive roller 60 rotates. Therefore, the load associated with the insertion of the disk tray 22 is lower than when the disk tray 22 is slidably contacted with the discharge drive roller 60 that is stopped without applying a voltage to the DC motor 82. Therefore, it is possible to reduce the force required to manually feed the disc tray 22 holding the optical disc D to a position where the disc tray 22 can be transported by the discharge drive roller 60.

  (2) Since the assist voltage calculation unit 116 calculates the assist voltage based on the voltage value V1 when the discharge drive roller 60 actually rotates, the discharge drive roller 60 is more than when the assist voltage is set in advance. In contrast, the rotation assist force can be applied with a more accurate assist ratio Na.

  (3) When the second motor control unit 115 finishes applying the assist voltage, the insertion load of the disc tray 22 becomes higher than when the assist voltage is applied. Therefore, by setting the rotation amount of the discharge driving roller 60 accompanied with the rotation assist force to a rotation amount corresponding to the distance to the position to be manually inserted, the user can perceive the position at which the manual insertion is finished. it can.

  (4) When the disc tray 22 is extracted, the rotational position of the DC motor 82 can be returned to the reference rotational position Lp acquired by the rotational position acquisition unit 117. Therefore, even when the DC motor 82 rotates with the re-insertion, the influence on other mechanisms that operate by driving the DC motor 82 can be suppressed.

  (5) If the DC motor 82 rotates in the reverse direction as the disc tray 22 is inserted, the suction pump 73 may be driven, but the second motor control unit 115 determines the rotational position of the DC motor 82 in the return control. By returning, the influence by the drive of the suction pump 73 can be suppressed.

  (6) The discharge drive roller 60 for transporting the disc tray 22 toward the recording unit 30 functions as a discharge drive roller for discharging the recorded paper P out of the apparatus main body 12. Therefore, the disc tray 22 holding the optical disc D and the paper P can be conveyed by the same discharge driving roller 60.

In addition, you may change the said embodiment as follows.
A drive roller for conveying the disk tray 22 toward the recording unit 30 may be provided separately from the discharge drive roller for discharging the paper P.

  The power transmission switching mechanism 87 may not switch the power transmission destination from the lifting device 72 to the suction pump 73 after the capping by the upward movement of the cap 71 is completed. In this case, there is a possibility that the cap 71 is moved downward by the rotation of the DC motor 82 in the reverse direction accompanying the insertion of the disc tray 22 and the capping is released. In that respect, according to the above embodiment, when the disk tray 22 is removed, the rotational position of the DC motor 82 is returned by the return control, so that the influence of the downward movement of the cap 71 is suppressed.

  When the disk tray 22 is inserted / removed, the power transmission switching mechanism 87 may select the gap adjusting mechanism 46 or the pickup roller 54 as a power transmission destination. Also in this case, when the disc tray 22 is removed, the rotational position of the DC motor 82 is returned by the return control, so that the influence on the mechanism to which the power is transmitted is suppressed.

  When the disk tray 22 is inserted / removed, the power transmission switching mechanism 87 may select a mechanism other than the gap adjusting mechanism 46, the pickup roller 54, and the maintenance mechanism 70 as a power transmission destination. For example, as a configuration in which the displacement mechanism 78 of the carriage lock mechanism 75 is operated by driving the DC motor 82, the power transmission switching mechanism 87 may select the displacement mechanism 78 as a power transmission destination. Also in this case, according to the above embodiment, when the disk tray 22 is removed, the rotational position of the DC motor 82 is returned by the return control, so that the unintended rotation of the DC motor 82 affects other mechanisms. Is suppressed.

  A configuration without the carriage lock mechanism 75 may be adopted. In this case, in step S12, the main control unit 110 may determine from the count value of the carriage counter 118 whether or not the carriage 33 is disposed at the home position HP.

  In the above embodiment, after the assist control is finished, the optical disc D is loaded in response to the operation of the recording start button 16c. However, after the assist control, the transport mechanism is not performed without the user's operation. The loading by 31 and the recording by the recording unit 30 may be performed continuously. According to this configuration, the optical disk D can be loaded semi-automatically.

  The recording medium conveyed by the disk tray 22 is not limited to the optical disk D, and non-standard paper or a recording medium having an arbitrary shape and material can be employed. Further, these recording media may be held by holding or sucking in addition to being placed on the disk tray 22. Further, the disc tray 22 is configured such that a portion for holding a recording medium is changed to an arbitrary shape other than a plate shape according to the shape of the recording medium, except for a portion sandwiched between the transport roller and the driven roller. Is also possible.

  The disc selection button 16a and the paper selection button 16b are not provided, and the type of the recording medium is changed by an operation using one switching button, an input operation via the touch panel, or an operation from a host device connected to the printer 11. It is good also as a structure.

  The tray detection unit 24 is not limited to a mechanical sensor that detects the displacement of the lever 23, and may use an optical sensor or a magnetic sensor that detects the presence or absence of the disk tray 22 by reflecting light.

  The rotation amount M1, the assist ratio Na, the specified amount Me, and the assist time Te are not limited to the numerical values exemplified in the constant table T1, and can be changed to arbitrary numerical values. For example, the assist ratio can be set to a numerical value such as 50 to 90%. If the assist ratio is too low, a force is required for insertion. If the assist ratio is too high, the feeling of insertion of the disc tray 22 is reduced. Therefore, the assist ratio is preferably about 75 to 80%.

The timer 121 may start counting the elapsed time T when the application of the assist voltage to the DC motor 82 is started.
The prescribed amount Me may be the amount of rotation after starting to apply a voltage to the DC motor 82 in step S30. In this case, in step S38, it may be determined whether or not the rotation amount M of the DC motor 82 has reached the specified amount Me from the reference rotation position Lp.

  When the notch portion 26 is not formed on the disc tray 22, the return control in step S20 may be omitted. In this case, the rotational position acquisition unit 117 and the assist counter 120 may not be provided.

The assist control end condition may omit any of steps S35 to S38.
The voltage value V2 of the assist voltage applied to the DC motor 82 may be set in advance. In this case, the assist voltage calculation unit 116 may not be provided.

  The computer 101 may be configured to include both a CPU and an ASIC. In this case, the disc tray receiving control routine and the assist control routine may be executed by the CPU, may be executed by the ASIC, or may be executed by a combination of the CPU and the AISC. . Further, the computer 101 may be configured without an ASIC.

  The printer 11 may be an ink jet printer, a laser printer, a drum printer, a tandem printer, a thermal transfer printer (including a sublimation printer), a non-impact printer, or an impact printer such as a dot impact printer. .

  The printer 11 may be a line printer such as a full line head type printer having an overall shape corresponding to the entire width of the recording medium in the width direction X in addition to the serial printer as in the above embodiment.

  The ink cartridge 43 may be a so-called on-carriage type ink cartridge that is mounted on the carriage 33 as in the above embodiment, or a so-called off-carriage type that is mounted in a predetermined location other than the carriage 33 in the printer. Ink cartridges may be used.

  In the above-described embodiment, the recording apparatus can be jetted by flowing as a fluid other than ink (liquid or liquid material in which particles of functional material are dispersed or mixed in the liquid, fluid such as gel, or fluid. It may be a fluid ejecting apparatus that performs recording by ejecting or ejecting (including solid). For example, recording is performed by ejecting a liquid material in which a material such as an electrode material or a color material (pixel material) used for manufacturing a liquid crystal display, an EL (electroluminescence) display, and a surface emitting display is dispersed or dissolved. A liquid ejecting apparatus may be used. Also, a fluid injection device for injecting a fluid such as a gel (eg, physical gel), a powder injection device (eg, a toner jet type) for injecting a solid such as powder (particles) such as toner Recording device). The present invention can be applied to any one of these fluid ejecting apparatuses. In this specification, “fluid” means, for example, liquid (including inorganic solvents, organic solvents, solutions, liquid resins, liquid metals (metal melts), etc.), liquids, fluids, gases, and powders. (Including granules and powders).

Furthermore, the technical idea grasped | ascertained from the said embodiment and each modification is described below.
(A) a recording unit for recording on a recording medium;
A drive roller for transporting a transported medium capable of holding the recording medium toward the recording unit;
A motor for applying a rotational force to the drive roller;
A transported medium detection unit capable of detecting insertion / extraction of the transported medium with respect to a transport path extending toward the recording unit;
A rotation detector for detecting the rotational position of the motor;
A rotation position acquisition unit that acquires, as a reference rotation position, a rotation position of the motor detected by the rotation detection unit when the conveyance medium detection unit detects that the conveyance medium is inserted into the conveyance path. When,
A motor control unit that drives the motor until it returns to the reference rotation position when the transported medium detection unit detects that the transported medium has been extracted from the transport path;
A recording apparatus comprising:

  According to this configuration, when the transported medium is extracted, the motor control unit can return the rotational position of the motor to the reference rotational position. For this reason, even when the motor rotates as a result of re-insertion, the influence on other mechanisms that operate by driving the motor can be suppressed.

  DESCRIPTION OF SYMBOLS 11 ... Printer as an example of a recording apparatus, 12 ... Apparatus main body, 22 ... Disc tray as an example of a conveyed medium, 24 ... Tray detection part as an example of a conveyed medium detection part, 30 ... Recording part, 44 ... Fluid Ejection head, 44a ... Fluid ejection nozzle, 56 ... Conveyance drive roller as an example of a second drive roller, 60 ... Ejection drive roller as an example of a drive roller and a first drive roller, 70 ... As an example of another mechanism Maintenance mechanism, 71 ... cap, 73 ... suction pump, 82 ... DC motor as an example of motor, 84 ... rotary encoder as an example of rotation detection unit, 115 ... second motor control unit as an example of motor control unit, 116: Assist voltage calculation unit, 117: Rotation position acquisition unit, D: Example of recording medium and first recording medium All optical disks, M ... rotation amount, M1 ... preset rotation amount, Me ... prescribed amount, Na ... assist ratio, P ... paper as an example of the second recording medium, Rd ... transport path, Lp ... reference Rotation position, V1 ... voltage value.

Claims (6)

A recording unit for recording on a recording medium;
A drive roller for transporting a transported medium capable of holding the recording medium toward the recording unit;
A motor for applying a rotational force to the drive roller;
A transported medium detection unit capable of detecting insertion / extraction of the transported medium with respect to a transport path extending toward the recording unit;
When the transported medium detection unit detects that the transported medium has been inserted into the transport path, an assist voltage for applying a rotational assist force that is smaller than the rotational load of the drive roller to the drive roller is A motor controller to apply to the motor;
A recording apparatus comprising: An assist voltage calculation unit that calculates the assist voltage based on a voltage value when the driving roller rotates by a preset rotation amount and an assist ratio that is preset as a ratio of the rotation assist force to the rotation load. The recording apparatus according to claim 1, further comprising: The motor control unit ends the application of the assist voltage when an amount of rotation after starting application of the assist voltage to the motor reaches a predetermined amount set in advance. The recording apparatus according to claim 1 or 2. A rotation detector for detecting the rotation amount of the motor;
A rotation amount acquisition unit that acquires a rotation amount from a reference rotation position when starting application of the assist voltage when the transported medium detection unit detects that the transported medium has been inserted into the transport path. When,
Another mechanism that operates by driving the motor,
The motor control unit drives the motor to return the rotation amount from the reference rotation position when the transported medium detection unit detects that the transported medium has been extracted from the transport path. The recording apparatus according to claim 1, wherein the recording apparatus is a recording apparatus. The other mechanism includes a cap capable of contacting the fluid ejecting head constituting the recording unit so as to surround the fluid ejecting nozzle formed in the fluid ejecting head, and a suction pump capable of sucking the inside of the cap A maintenance mechanism for the recording unit,
When the motor rotates in the first direction, the drive roller rotates in a direction corresponding to the first direction to convey the medium to be conveyed in a discharge direction away from the recording unit, while the motor Is rotated in a second direction opposite to the first direction, the driving roller rotates in a direction corresponding to the second direction to move the transported medium in the transport direction toward the recording unit. The recording apparatus according to claim 4, wherein the suction pump sucks the inside of the cap while transporting. When the recording medium is a first recording medium and the driving roller is a first driving roller,
A second driving roller for conveying a second recording medium having higher flexibility than the first recording medium toward the recording unit;
When the motor rotates in the first direction, the first drive roller functions as a discharge drive roller for discharging the second recording medium recorded by the recording unit to the outside of the apparatus main body. The recording apparatus according to claim 5.