JP5077602B2 - Recording device - Google Patents

Description

  The present invention includes a transported medium having a plate shape that can be transported in a recording apparatus including a recording unit that performs recording on the recording medium, and a linear transport path that can transport the transported medium having a plate shape. The present invention relates to a recording apparatus. The present invention also relates to a liquid ejecting apparatus.

Here, the liquid ejecting apparatus uses an ink jet recording head, and is not limited to a recording apparatus such as a printer, a copying machine, and a facsimile machine that discharges ink from the recording head to perform recording on a recording medium. And a device that ejects a liquid corresponding to the application from a liquid ejecting head corresponding to the ink jet recording head to an ejected medium corresponding to a recording medium, and adheres the liquid to the ejected medium. .
In addition to the recording head, as a liquid ejecting head, a color material ejecting head used for manufacturing a color filter such as a liquid crystal display, and an electrode material (conductive paste) used for forming an electrode such as an organic EL display or a surface emitting display (FED) Examples thereof include an ejection head, a bioorganic matter ejection head used for biochip production, and a sample ejection head as a precision pipette.

  An ink jet printer as an example of a recording apparatus or a liquid ejecting apparatus uses an optical disk or the like as a thin plate, represented by a CD-R or DVD, as a recording medium, and ejects ink droplets directly onto the label surface. Is configured to execute recording. In such an ink jet printer, for example, as disclosed in Patent Document 1, a thin plate-like body such as an optical disk is set on a tray as a transported medium having a plate shape, and is set in the tray in the ink jet printer. Are conveyed (sub-scan feed), and ink jet recording is performed on the label surface.

  Further, as shown in Patent Document 1, a tray guide as a guide means for guiding the tray is provided in the front of the apparatus of such an ink jet printer, and the tray on which the optical disk is set is provided on the inside of the apparatus from above the tray guide. And the recording on the optical disc is completed, and then it is ejected onto the tray guide.

  By the way, the tray is sub-scan fed by rotating the transport driving roller while being nipped by the transport driving roller and the transport driven roller provided on the upstream side of the recording head. Therefore, in order to make the tray in a sub-scan feed state by the transport driving roller and the transport driven roller, it is necessary to insert the tray from above the tray guide and then insert the front end of the tray between the transport driving roller and the transport driven roller. There is.

  As shown in Patent Document 2, this operation is provided with a means for separating (release) the transport driven roller from the transport drive roller. After the transport driven roller is separated from the transport drive roller by a user operation, the tray is moved to the tray. Inserting from above the guide, and after the leading end of the tray reaches between the transport driving roller and the transport driven roller, the transport driven roller is returned to the original position.

JP 2005-104136 A Japanese Patent Application Laid-Open No. 2002-355956

  Here, the paper discharge means provided on the downstream side of the recording head includes a discharge drive roller that is driven to rotate, and a discharge driven roller that is driven to rotate in contact with the discharge drive roller. The driven roller employs a toothed roller (spur) having teeth on the outer periphery in order to prevent ink whitening and transfer.

  Therefore, for example, separately from the discharge driven roller, a pressure roller for pressing the tray toward the discharge drive roller is provided on the tray guide side with respect to the discharge driven roller, and the tray is transported with the transport drive roller by the rotation of the discharge drive roller. If feeding to the driven roller and the leading end of the tray can be inserted between the transport driving roller and the transport driven roller, a means for releasing the transport driven roller from the transport driving roller becomes unnecessary, and the cost is reduced. This can contribute to the convenience of the user.

  In this case, since the bottom surface of the tray needs to be brought into contact with the discharge driving roller with certainty, it is necessary to dispose the discharge driving roller slightly above the support surface on which the tray guide supports the tray. However, with this configuration, when the tray is inserted from above the tray guide, the tray is pressed from above by the pressing roller when the leading end of the tray reaches the discharging drive roller. Contact (collision), that is, an unpleasant “feel of catching” when inserting the tray is caused.

  Further, since the tray is pressed by the pressing roller until the tray tip reaches the discharge driving roller, the pressing force is applied to the tray guide, and the posture of the tray guide changes from an appropriate horizontal posture to an inappropriate inclined posture. There is also a risk of it.

  Therefore, the present invention has been made in view of such a situation, and an object of the present invention is to be positioned between the guide means for supporting the tray, the drive roller in contact with the bottom surface of the tray, and the guide means and the drive roller. And a pressing roller that presses the tray toward the drive roller from above. When the tray is inserted into the printer from the guide means, the tray can be smoothly inserted without being caught, and the posture of the tray guide The purpose of this is to prevent adverse effects.

  In order to solve the above problems, a first aspect of the present invention is a transported medium having a plate shape that can be transported in a recording apparatus including a recording unit that performs recording on a recording medium, and the recording apparatus includes: A guide means for supporting the transported medium when the transported medium is inserted toward the recording means, and positioned between the recording means and the guide means and in contact with the bottom surface of the transported medium. A driving roller that is rotationally driven; a pressing position that is positioned on the guide means side with respect to the driving roller and that presses the medium to be conveyed toward the driving roller from the upper surface side of the medium to be conveyed; A non-pressing position spaced from the upper surface of the transport medium, and a displaceable pressure roller; and when the transport medium is inserted toward the drive roller while being supported by the guide means, And a roller position switching means for displacing the pressing roller from the non-pressing position to the pressing position. In the recording apparatus, the driving medium is supported by the guide means while being supported by the guide means. The pressure roller is placed on the transport medium so that the front end of the transport medium reaches the driving roller before or simultaneously with the pressing roller pressing the transport medium. The leading end of the transported medium extends in the insertion direction of the transported medium with respect to the pressing start position on the transported medium that starts pressing.

  According to this aspect, when the medium to be transported is inserted toward the driving roller while being supported by the guide means, the pressure roller is pressed before or simultaneously with the pressing of the medium to be transported. Since the leading end of the transported medium extends so that the leading end of the medium reaches the driving roller, the leading end of the transported medium hits the driving roller in a state where the transported medium is pressed by the pressing roller. It is possible to prevent the occurrence of “feeling of catching” when inserting the transported medium without contact, or to greatly reduce the degree thereof.

  Further, since the pressing force with which the pressing roller presses the transported medium is not directly transmitted to the guide unit, the posture of the guide unit is not adversely affected and the posture of supporting the transported medium is appropriately set. In addition to maintaining the strength of the guide means, it is not necessary to secure the strength of the guide means more than necessary in consideration of the pressing force received from the pressing roller, so that the cost of the guide means can be reduced.

  The “recording medium” means an object on which recording is performed by a recording means, such as a recording sheet or an optical disk (a label surface) as a thin plate, and the “conveyed medium” means the above-mentioned recording medium. It is a broad concept including a recording medium, and includes a medium (for example, a tray on which an optical disk can be set) that is not directly recorded by a recording unit but is transported by a recording apparatus.

According to a second aspect of the present invention, in the first aspect, the medium to be transported is a tray in which a concave portion capable of setting a thin plate-like body is formed.
According to this aspect, when inserting the tray in which the recessed part which can set a thin-plate-like body was inserted, the effect similar to the 1st aspect mentioned above can be acquired.

  According to a third aspect of the present invention, there is provided recording means for recording on a recording medium, guide means for supporting the transported medium when the transported medium having a plate shape is inserted toward the recording means, A driving roller positioned between the recording unit and the guide unit, in contact with a bottom surface of the transported medium and driven to rotate; and positioned on the guide unit side with respect to the driving roller; A pressing roller capable of displacing a pressing position pressed from the upper surface side of the transported medium toward the drive roller and a non-pressing position spaced from the upper surface of the transported medium; and the transported medium is the guide means A roller position cut that displaces the pressing roller from the non-pressing position to the pressing position by being engaged with the plate state when inserted toward the driving roller while being supported by the roller. And a linear transport path capable of transporting the transported medium, the transported medium being inserted toward the drive roller while being supported by the guide means In this case, the driving roller is disposed at such a position that the tip of the transported medium reaches the driving roller before or simultaneously with the pressing of the transporting medium by the pressing roller. It is characterized by.

  According to this aspect, when the transport medium is inserted toward the drive roller while being supported by the guide means, the pressing roller presses the transport medium before or simultaneously with the pressing roller. Since the driving roller is disposed at such a position that the leading end of the transported medium reaches the driving roller, the leading end of the transporting medium is driven while the pressed medium is pressed by the pressing roller. It is possible to prevent the occurrence of “feeling of catch” when inserting the transported medium without contacting the roller, or to greatly reduce the degree thereof.

  Further, since the pressing force with which the pressing roller presses the transported medium is not directly transmitted to the guide unit, the posture of the guide unit is not adversely affected and the posture of supporting the transported medium is appropriately set. In addition to maintaining the strength of the guide means, it is not necessary to secure the strength of the guide means more than necessary in consideration of the pressing force received from the pressing roller, so that the cost of the guide means can be reduced.

  According to a fourth aspect of the present invention, in the third aspect, the drive roller constitutes a recording medium discharge unit that discharges the recording medium recorded by the recording unit. The recording medium discharge means includes a discharge driven roller that is driven to rotate in contact with the drive roller. The discharge driven roller includes a contact position where the discharge driven roller contacts the drive roller, and the discharge driven roller discharges the discharge roller. The roller position switching means includes a lever portion that is supported by a driven roller support means that is displaceably provided so as to be able to take a separation position that is separated from the drive roller. A release member pivotally supported by the driven roller support means so as to be turnable when viewed from the side of the transport path, and the lever portion And an urging unit that imparts a turning tendency to the release member so as to project into the feeding path, and the medium to be transported is supported by the guide unit when the lever portion projects into the transport path. When inserted toward the driving roller, the lever portion is pushed up by the transported medium to rotate the release member, and the driven roller support means is rotated along with the rotation of the release member. The pressure roller is configured to be displaced from the contact position to the separation position and to be displaced from the non-pressing position to the pressing position.

  According to this aspect, the driven roller support means is displaced from the contact position to the separation position and the pressing roller is displaced from the non-pressing position to the pressing position as the release member rotates. Therefore, the recording apparatus can be configured at a low cost with a simple configuration.

  According to a fifth aspect of the present invention, there is provided recording means for recording on a recording medium, guide means for supporting the transported medium when the transported medium having a plate shape is inserted toward the recording means, A driving roller positioned between the recording unit and the guide unit, in contact with a bottom surface of the transported medium and driven to rotate; and positioned on the guide unit side with respect to the driving roller; A pressing roller capable of displacing a pressing position pressed from the upper surface side of the transported medium toward the drive roller and a non-pressing position spaced from the upper surface of the transported medium; and the transported medium is the guide means A roller position cut that displaces the pressing roller from the non-pressing position to the pressing position by being engaged with the plate state when inserted toward the driving roller while being supported by the roller. And a linear transport path capable of transporting the transported medium, wherein the roller position switching means is driven while the transported medium is supported by the guide means. When the roller is inserted toward the roller, the pressing roller is displaced to the pressing position at the same time or after the leading end of the transported medium reaches the driving roller.

  According to this aspect, when the roller position switching unit is inserted toward the drive roller while the transported medium is supported by the guide unit, the leading end of the transported medium reaches the drive roller. At the same time or after reaching, the pressing roller is displaced to the pressing position, so that the tip of the medium to be transported does not contact the driving roller in a state where the medium to be transported is pressed by the pressing roller. It is possible to prevent the occurrence of “feeling of catching” when inserting the conveyance medium, or to greatly reduce the degree thereof.

  Further, since the pressing force with which the pressing roller presses the transported medium is not directly transmitted to the guide unit, the posture of the guide unit is not adversely affected and the posture of supporting the transported medium is appropriately set. In addition to maintaining the strength of the guide means, it is not necessary to secure the strength of the guide means more than necessary in consideration of the pressing force received from the pressing roller, so that the cost of the guide means can be reduced.

  According to a sixth aspect of the present invention, there is provided a liquid ejecting unit that ejects liquid onto the ejected medium, and a guide unit that supports the transported medium when the transported medium having a plate shape is inserted toward the liquid ejecting unit. And a drive roller that is located between the liquid ejecting means and the guide means, is in contact with the bottom surface of the transported medium and is rotationally driven, and is located on the guide means side with respect to the drive roller, A pressing roller capable of displacing a pressing position for pressing the transported medium toward the drive roller from the upper surface side of the transported medium and a non-pressing position spaced from the upper surface of the transported medium; and the transported medium When the roller is inserted toward the driving roller while being supported by the guide means, the pressing roller is displaced from the non-pressing position to the pressing position by engaging with the plate state. A liquid ejecting apparatus having a linear transport path capable of transporting the transported medium, wherein the transported medium is supported by the guide means while being supported by the guide roller. The driving roller is in such a position that the leading end of the transported medium reaches the drive roller before or simultaneously with the pressing roller pressing the transported medium when inserted toward It is arranged.

1 is an external perspective view of a printer according to the present invention. 1 is a side sectional view of a printer according to the present invention. 1 is an external perspective view of an apparatus main body of a printer according to the present invention. 1 is an external perspective view of a front portion of a printer according to the present invention. The perspective view of a stacker and a position switching means. The exploded perspective view of a stacker and a position switching means. The side view of a stacker and a position switching means. The side view of a stacker and a position switching means. The perspective view of a shaft and a pinion gear. The perspective view of a stacker, a position switching means, and a cover. The principal part side view of a position switching means. The principal part side view of a position switching means. The principal part side view of a position switching means. The top view of a tray. FIG. The perspective view which shows the attachment state of the paper discharge frame Assy. FIG. 3 is a perspective view of a sheet discharge frame Assy, a stacker, and a position switching unit. FIG. 4 is a side view of a paper discharge frame Assy, a stacker, and a position switching unit. The perspective view of a torsion spring (biasing device). The front view of a torsion spring (biasing device). The external appearance perspective view of a release member. FIG. 4 is a side sectional view of a transport path around a paper discharge frame Assy. FIG. 4 is a side sectional view of a transport path around a paper discharge frame Assy. FIG. 4 is a side sectional view of a transport path around a paper discharge frame Assy. FIG. 4 is a side sectional view of a transport path around a paper discharge frame Assy. FIG. 4 is a side sectional view of a transport path around a paper discharge frame Assy.

Hereinafter, embodiments of the present invention will be described in the following order with reference to the drawings.
1. Overall configuration of the printer
2. Configuration of position switching means
3. Tray configuration
4). Configuration of urging device and roller position switching means
5. Positional relationship between discharge drive roller, pressing roller, and tray

<< 1. Overall configuration of printer >>
Hereinafter, an overall configuration of an inkjet printer (hereinafter referred to as “printer”) 1 as an example of a recording apparatus or a liquid ejecting apparatus according to the present invention will be outlined with reference to FIGS. 1 and 2. Here, FIG. 1 is an external perspective view of the printer 1, and FIG. In the following description, the right direction (front side of the apparatus) in FIG. 2 is referred to as “downstream side” of the sheet conveyance path, and the left direction (rear side of the apparatus) is referred to as “upstream side”.

As shown in FIG. 1, the printer 1 is a multifunction machine that has a scanner function in addition to a printer function, and includes a printer unit 10 and a scanner unit 9 that is positioned above the printer unit 10.
The printer unit 10 has a function of an ink jet printer that performs ink jet recording mainly on recording paper (mainly cut sheet paper: hereinafter referred to as “paper P”) as an example of “recording medium” and “ejection medium”. Yes. In FIG. 1, a member denoted by reference numeral 11 indicates a cover body that closes a discharge port for discharging the recorded paper P. The cover body 11 is rotated approximately 90 ° toward the front side when the printer function is used. In the state, the discharge port is opened. An operation panel 6 is provided on the upper front side of the printer unit 10. A scanning function using the scanner unit 9, a recording function in the printer unit 10, a function for recording a scanned image, and the like are provided on the operation panel 6. Operation is possible.

  The scanner unit 9 includes a lid body 8 that can be opened and closed by pivoting upward about a pivot shaft (provided on the rear side) (not shown). When scanning is performed on the lower side of the lid body 8. A glass placing surface (not shown) for placing a printed matter or the like as a target is provided. Further, a scanning device (not shown) is provided below the glass placement surface. The scanner unit 9 as a whole pivots upward about a pivot shaft (provided on the rear side) (not shown) as a whole, so that the upper part of the printer unit 10 is opened, and a recording unit such as a carriage is opened. A member (for example, an ink cartridge) can be replaced or maintained.

  The configuration of the printer unit 10 will be described below with reference to FIG. In general, the printer unit 10 feeds the paper P from a feeding device 2 provided at the rear of the apparatus to a conveyance roller 29 as a recording medium conveyance unit, and conveys the recording medium 32 to the recording unit 32 by the conveyance roller 29. The recording paper P is discharged to the outside by the recording medium discharge device 3. Further, the printer 10 can convey a highly rigid medium to be conveyed such as a plate-shaped tray 90 (FIG. 14) on which an optical disk as a medium to be recorded is set, thick board paper, or the like by the conveyance roller 29. It has a straight conveyance path, that is, it is configured to be able to perform ink jet recording directly on the label surface of an optical disk, board paper, or the like.

Hereinafter, the feeding device 2 will be described in detail. The feeding device 2 includes a hopper 19, a feeding roller 20, a retard roller 21, and a return lever 22.
The hopper 19 is composed of a plate-like body, and is configured to be swingable around an upper swing fulcrum (not shown). By swinging, the paper P supported in an inclined posture is fed onto the hopper 19. The roller 20 is pressed against or separated from the feeding roller 20. The feeding roller 20 has a substantially D shape when viewed from the side, and feeds the uppermost sheet P in pressure contact with the arc portion to the downstream side, while the feeding roller 29 after the sheet P is fed. During the conveyance of the paper P, the flat portion is controlled so as to face the paper P as shown in the figure so as not to cause a conveyance load.

  The retard roller 21 is provided so as to be in press contact with the arc portion of the feed roller 20. When only one sheet P is fed without the double feeding of the sheet P, the retard roller 21 contacts the sheet P and rotates (clockwise in FIG. 2) to feed the sheet P. When there are a plurality of sheets between the feed roller 20 and the retard roller 21, the friction coefficient between the sheets is lower than the friction coefficient between the sheet P and the retard roller 21. Become. Accordingly, the next and subsequent sheets P that are to be double-fed by the uppermost sheet P to be fed do not proceed downstream from the retard roller 21 and are prevented from being double-fed. The return lever 22 is provided so as to be rotatable, and has the effect of returning the next and subsequent sheets P to be fed to the hopper 19.

Between the feeding device 2 and the conveying roller 29, a detecting means (not shown) for detecting the passage of the paper P, a feeding posture of the paper P, and a contact of the paper P with the feeding roller 20 are formed. A guide roller 26 is provided to prevent the above and reduce the conveyance load.
The conveyance roller 29 provided on the downstream side of the feeding device 2 includes a conveyance driving roller 30 that is rotationally driven by a motor, and a conveyance driven roller 31 that is driven to rotate while being in pressure contact with the conveyance driving roller 30. ing. The transport driving roller 30 is provided with an adhesion layer formed by substantially uniformly dispersing wear-resistant particles on the outer peripheral surface of a metal shaft extending in the paper width direction, and the transport driven roller 31 has a low friction material such as an elastomer on the outer peripheral surface. As shown in FIG. 3, a plurality of transport drive rollers 30 are arranged in the axial direction.

Further, in the present embodiment, two conveyance driven rollers 31 are pivotally supported at the downstream end of one paper guide upper 24 so as to be freely rotatable, and three of the paper guide upper 24 in the paper width direction are shown in FIG. It is provided as shown. In addition, the paper guide upper 24 is provided so as to be swingable about the shaft 24 a when the shaft 24 a is pivotally supported by the main frame 23, as viewed from the side of the paper conveyance path. Is urged in a direction in pressure contact with the conveyance drive roller 30.
The sheet P fed to the transport roller 29 by the feeding device 2, or the tray 90 (FIG. 14) or board paper inserted from the front side of the device is nipped by the transport driving roller 30 and the transport driven roller 31. When the conveyance driving roller 30 rotates in this state, it is conveyed to the recording means 32 on the downstream side.

  The recording unit 32 includes an inkjet recording head (hereinafter referred to as “recording head”) 36 and a paper guide lower 37 provided so as to face the recording head 36. The recording head 36 is provided at the bottom of the carriage 33. The carriage 33 is driven to reciprocate in the main scanning direction by a drive motor (not shown) while being guided by a carriage guide shaft 34 extending in the main scanning direction. The carriage 33 has an ink cartridge (not shown) independent for each of a plurality of colors inside the cover 35, and supplies ink from the ink cartridge to the recording head 36.

  The paper guide 37 that defines the distance between the paper P and the recording head 36 has ribs (not shown) on the surface facing the recording head 36 and a recess (not shown) for discarding ink. , And so-called borderless printing is performed in which printing is performed without margins on the edge of the paper P by discarding the ink ejected to the area off the edge of the paper P in the recess.

Subsequently, a recording medium discharge device 3 is provided on the downstream side of the recording head 36. The recording medium discharge device 3 includes a guide roller 43, a discharge roller 40, a discharge frame Assy 45, a stacker 13, a frame 48, a roller position switching unit 5, and other components not shown in FIG. I have.
The guide roller 43 functions to prevent the paper P from being lifted from the paper guide bottom 37 and to keep the distance between the paper P and the recording head 36 constant. The discharge roller 40 includes a discharge drive roller 41 that is rotationally driven by a motor (not shown), and a discharge driven roller 42 that rotates in contact with the discharge drive roller 41. In the present embodiment, a plurality of discharge driving rollers 41 are provided in the axial direction of a shaft body that is made of a rubber roller and is rotationally driven.

  The discharge driven roller 42 is formed by a toothed roller having a plurality of teeth on the outer periphery, and a plurality of discharge driven rollers 42 are provided on the discharge frame Assy 45 as “driven roller support means” so as to be paired with the plurality of discharge drive rollers 41. The paper P recorded by the recording means 32 is discharged to the stacker 13 when the discharge driving roller 41 is rotationally driven while being nipped by the discharge driving roller 41 and the discharge driven roller 42. Although details will be described later, the tray 90 (FIG. 14), board paper, and the like are driven downstream by the rotation of the discharge drive roller 41 while being nipped by the discharge drive roller 41 and the pressing roller 78. Discharged.

  The paper discharge frame Assy 45 is provided so as to be displaceable (switchable) so that a contact position where the discharge driven roller 42 contacts the discharge driving roller 41 and a separation position where the discharge driven roller 42 is separated from the discharge driving roller 41 can be taken. Further, roller position switching means 5 for displacing the paper discharge frame Assy 45 from the contact position to the separation position is provided, which will be described in detail later.

A stacker 13 for stacking the discharged paper P is provided on the downstream side of the paper discharge frame Assy 45. The stacker 13 has a first position (see FIGS. 2 and 4B) that forms a linear conveyance path for conveying a tray 90 (FIG. 14), board paper, and the like, which will be described in detail later, A second position (see FIG. 4A), which is positioned below the first position and is capable of stacking the paper P discharged by the discharge roller 40, is provided so as to be switchable by position switching means 5 (described later). It has been. A tray 90, board paper, or the like as a “conveyed medium” having a plate shape is supported from the front of the apparatus toward the rear side (upstream side) while being supported by the stacker 13 when the stacker 13 is in the first position. Inserted by hand (feeded). That is, the stacker 13 also functions as a guide unit that supports the tray 90.
The above is the overall configuration of the printer 1.

<< 2. Configuration of position switching means >>
Next, the position switching means 4 for switching the position of the stacker 13 will be described in detail with reference to FIGS. 3 is an external perspective view of the main body of the printer unit 10, FIG. 4 is an external perspective view of the front portion of the printer 1, FIG. 5 is a perspective view of the stacker 13 and the position switching means 4, and FIG. 7 and 8 are side views, FIG. 9 is a perspective view of the shaft 65 and the pinion gear 66, FIG. 10 is a perspective view of the stacker 13, the position switching means 4, and the cover body 11, and FIGS. It is a principal part side view of the means 4. FIG.

  As shown in FIG. 3, a sub stacker 14 is accommodated in a stacker 13 provided in front of the apparatus, and the support surface (stack surface) for supporting the paper P is expanded by pulling the sub stacker 14 out of the stacker 13. It is configured to be. 3 shows a state in which the stacker 13 is in the second position. When the stacker 13 is in the first position, that is, when the tray 90 (FIG. 14) or the board paper is guided, the sub stacker 14 is It is stored in the stacker 13.

  On the support surface 13a of the stacker 13, guide ribs 80A and 80B are formed for guiding both side ends of the tray 90 (FIG. 14) as shown in FIGS. 3 to 6, and the guide ribs 80A and 80B are provided with guide ribs 80A and 80B. The flange portions 81A and 81B are formed so as to cover the upper portions of both side ends. When the tray 90 is inserted into the printer 1 from above the stacker 13 in the first position, the position of the tray 90 in the main scanning direction is regulated by the guide ribs 80A and 80B, and from the support surface 13a by the flange portions 81A and 81B. It is regulated so as not to rise. On the support surface 13 a, ribs 82 extending in the insertion direction of the tray 90 are provided on the tray 90 in order to reduce the contact area between the support surface 13 a and the bottom surface of the tray 90 and smoothly guide the tray 90. A plurality are formed at appropriate intervals in the width direction.

  Position switching means 4 is provided on both sides of the stacker 13, and an operation lever 69 is provided on the left position switching means 4. As shown in FIG. 3 and FIG. 4A, the operation lever 69 is in a slightly upward orientation when the stacker 13 is in the second position, and the position switching means is pushed down by pushing the operation lever 69 downward. 4 operates so that the stacker 13 is switched (displaced) to the first position as shown in FIG.

  As shown in FIGS. 7 and 8, the operation lever 69 has a bearing portion 69a and an operation portion 69c extending from the bearing portion 69a to the front side of the device (right direction in the drawing). An elongated hole 69b is formed at the end on the side extending to the back side (left direction in the figure). The bearing portion 69a is fitted to a shaft 54a formed on a guide member 54 described later, whereby the operation lever 69 is provided so as to be rotatable about the shaft 54a. 5 to 8, reference numeral 70 denotes a bi-stable spring that urges the operation lever 69. The bi-stable spring 70 causes the operation lever 69 to be in either the posture shown in FIG. 7 or the posture shown in FIG. It is designed to be held stably.

  As shown in FIG. 10, the operation lever 69 is configured such that the operation portion 69 c can be engaged with the cover body 11 provided below the stacker 13. FIG. 10A shows a state in which the stacker 13 is in the first position. When the cover body 11 is rotated in the closing direction from this state, the cover body 11 is shown in FIG. 10B. Thus, the length and the positional relationship of the operation unit 69c are set so that the operation lever 69 is rotated (pushed up) in the direction of switching the stacker 13 from the first position to the second position.

  Further, in addition to this, the stacker 13 may interfere with the cover body 11 at the first position and the second position as the free end of the stacker 13 interferes with the rotation of the cover body 11 in the closing direction. The cover body 11 is provided so as to be rotatable (semi-constrained state) so that the free end is lifted upward in accordance with the rotation operation of the cover body 11.

Therefore, as described above, when the cover body 11 is rotated in the closing direction when the stacker 13 is in the first position, the cover body 11 pushes up the operation lever 69, so that the cover body 11 is rotated in the flat direction. Only by this operation, the stacker 13 can be switched to the second position and the stacker 13 can be rotated (FIG. 10B).
Further, even if the cover body 11 interferes with the stacker 13 as the cover body 11 rotates, the stacker 13 is in a semi-constrained state so that the free end can be rotated in the upward direction. There is no possibility of damaging the stacker 13 by the cover body 11.

  Next, as shown in FIGS. 5 and 6, the position switching means 4 includes a single shaft 65 as an “operated part” and a guide means 50, and does not appear in FIGS. 5 and 6. 8 and 9, the first restricting means 51 located on the free end side of the stacker 13 with respect to the shaft 65 and the second restricting means located on the proximal end side of the stacker 13 with respect to the shaft 65. 52.

  The shaft 65 is disposed on the base end side (left side in FIGS. 8 and 9) of the stacker 13 from the center of gravity of the stacker 13 when the stacker 13 is viewed from the side as shown in FIGS. The stacker 13 is rotatably provided so as to extend through the stacker 13 and project outward from both side surfaces of the stacker 13.

  The guide means 50 includes a pinion gear 66 attached to the shaft end of the shaft 65, a guide hole 55 and a pinion gear 66 that extend in the displacement direction (vertical direction in the present embodiment) of the stacker 13 and into which the end portion of the shaft 65 is loosely inserted. And a guide member 54 having a rack 56 that meshes with the guide member 54.

The guide member 54 is formed separately from the housing member that forms the bottom of the printer 1, and is disposed on both sides of the stacker 13.
The shaft 65 is provided in a restricted state so as to be displaced only in the vertical direction when loosely inserted into the guide hole 55, and one end thereof is loosely inserted into a long hole 69 b formed in the operation lever 69. It has become a state. Accordingly, when the operation lever 69 rotates, the shaft 65 (stacker 13) is displaced up and down in the guide hole 55 accordingly.

  The shaft 65 is configured so that the left and right are synchronously displaced up and down by rack and pinion mechanisms (rack 56 and pinion gear 66) disposed on both sides of the stacker 13, and the operation lever 69 is thereby moved. When operated, the problem that only one side is displaced up and down is prevented.

  As shown in FIG. 9, a key hole 65a extending in the axial direction is formed at the shaft end of the shaft 65, and a projection 66a formed on the inner periphery of the pinion gear 66 is fitted into the key hole 65a. Thus, the pinion gear 66 is provided in a fixed state so as not to idle with respect to the shaft 65. Here, the shaft 65 is a hollow shaft formed by bending a metal plate, and the cylindrical shape is formed by a fitting structure in which the convex portion 65b and the concave portion 65c formed at the end of the metal plate material before processing are fitted. It is designed to be maintained for a long time.

  That is, the convex portion 65b is formed so that the width becomes wider toward the tip, and the concave portion 65c has a shape that just fits the convex portion 65b formed in this way. Since the wedge effect is produced by the fitting with the convex portion 65b, the joining portion is not opened by the spring back action of the metal plate, and the shape of the cylindrical shaft can be maintained for a long time without a joining step such as welding. It is possible.

  The key hole 65a is formed by stepping portions 65d and 65e formed on the metal plate material before processing facing each other by bending, and the seam of the cylindrical shaft is located substantially at the center of the key hole 65a. It is supposed to be. Therefore, it is possible to form the keyhole 65 easily and at low cost without performing a separate cutting process in order to form the keyhole 65a after bending the metal plate. The length dimension can be easily adjusted.

  Next, as shown in FIGS. 6 to 8, the stacker 13 is formed with a first engaging portion 67 that has a triangular shape and projects toward the guide member 54 as shown in FIGS. 6 to 8. A second engagement portion 68 that protrudes toward the back of the apparatus is formed at the proximal end portion. On the other hand, on the guide member 54 side, a first restricting portion 57 with which the first engaging portion 67 abuts and a second restricting portion 61 with which the second engaging portion 68 abuts are formed. The first engaging portion 67 and the first restricting portion 57 constitute the first restricting means 51, and the second engaging portion 68 and the second restricting portion 61 constitute the second restricting means 52.

  Hereinafter, the first restricting means 51 and the second restricting means 52 configured as described above will be described in more detail. As shown in FIG. 11A, the first restricting portion 57 has a first restricting surface 58 that forms a substantially horizontal surface and a second inclined surface that separates from the first engaging portion 67 downward. And a regulating surface 59. Further, the second restricting portion 61 forms a substantially vertical surface with the third restricting surface 62 that forms a part of the bottom surface of the second restricting portion 61 and is separated from the second engaging portion upward. And a fourth regulating surface 63 that forms an inclined surface. 11 to 13, the first restricting portion 57 and the second restricting portion 61 that are actually formed on the guide member 54 are drawn with solid lines as independent members for the sake of simplification of the drawings.

  When the stacker 13 is in the second position, the shaft 65 is pressed against the lower edge of the guide hole 55 by the weight of the stacker 13 as shown by the solid line in FIG. 7 or FIG. 68 is in a state in which it sinks into the lower side of the second restricting portion 61 and comes into contact with the third restricting surface 62. That is, since the shaft 65 is located on the base end side with respect to the position of the center of gravity of the stacker 13, the stacker 13 tends to rotate in the clockwise direction in FIG. When the portion 68 abuts against the third restricting surface 62, the rotation operation is restricted, and thereby the second position of the stacker 13 is held. In the second position, the first engaging portion 67 is in a state of being separated without engaging with the first restricting portion 67. In the second position, the stacker 13 is in an inclined posture with the free end side slightly upward as shown.

  Next, when the stacker 13 is in the second position, the operation lever 69 is pushed down, that is, when the shaft 65 is displaced upward in the guide hole 55, the phantom line in FIG. As shown, the second engaging portion 68 moves to the end portion of the third restricting surface 62 and the free end of the stacker 13 is lifted upward. When the operating lever 69 is further pushed downward to displace the shaft 65 upward, the second engaging portion 68 moves from the third restricting surface 62 to the fourth restricting surface 63 as shown in FIG. The second engaging portion 68 is displaced upward while contacting the fourth regulating surface 63. In this series of processes, the first engaging portion 67 maintains a state of being separated from the first restricting portion 57, so that the inclined posture of the stacker 13 is formed by the second restricting means 52 and the shaft 65.

  Next, when the operating lever 69 is further pushed down to displace the shaft 65 upward, the second engaging portion 68 moves away from the fourth regulating surface 63 as shown in the change from the solid line to the virtual line in FIG. At the same time, the first engaging portion 67 abuts on the second restricting surface 59, and thereafter, the first engaging portion 67 displaces upward while abutting on the second restricting surface 59, thereby rotating the stacker 13. Is regulated. That is, the means for forming the posture of the stacker 13 moves from the second restriction means 52 to the first restriction means 51.

  When the operating lever 69 is further pushed down to displace the shaft 65 further upward, the first engaging portion 67 is connected to the second restricting surface 59 as shown in the change from the phantom line to the solid line in FIG. Is switched from the contact state to the contact state with the first restricting surface 58, whereby the posture of the stacker 13 is changed from the tilted posture to the substantially horizontal posture, and finally switched to the first position. In this first position, the first engagement portion 67 is pressed against the first regulating surface 58 from above by the dead weight of the stacker 13, but this pressure contact is located on the proximal side from the center of gravity of the stacker 13. Although the stacker 13 tends to rotate in the clockwise direction in the drawing, the rotation operation of the stacker 13 is restricted by the shaft 65 being pressed against the upper edge of the guide hole 55, and thereby the first position is set. Retained.

  When the first engaging portion 67 is displaced upward while being in contact with the second restricting surface 59 (indicated by the phantom line in FIG. 12A), if the inclination angle of the stacker 13 is loose, the first engagement Since the joint portion 67 is strongly pressed against the second restricting surface 59 and cannot be displaced upward, the inclination angle of the stacker 13 when the first engaging portion 67 is displaced upward while being in contact with the second restricting surface 59. It is desirable to be as steep as possible.

  When the stacker 13 that has been switched to the first position in this way is switched to the second position again, the operation lever 69 is pushed up and the shaft 65 is displaced downward, contrary to the above. As a result, the state in which the first engaging portion 67 is pressed against the first restricting surface 58 from above is switched to the state in which the first engaging portion 67 is in contact with the second restricting surface 59 from the side, and the first engaging portion 67 is switched to the second restricting surface 59. Displaces downward while contacting 59. Eventually, the first engaging portion 67 moves away from the second restricting surface 59 and the second engaging portion 68 contacts the fourth restricting surface 63 from the side. Then, the second engagement portion 68 is displaced downward while being in contact with the fourth restriction surface 63, and finally, the second engagement portion 68 digs into the lower side of the second restriction portion 61, and the second engagement portion 68. Comes into contact with the third restricting surface 62, thereby switching to the second position.

  As described above, the first restricting means 51 holds the first position of the stacker 13, and after the first position is released at the time of switching from the first position to the second position, When switching from the first position to the first position, the posture of the stacker 13 before switching to the first position is restricted to an inclined posture (an inclined posture such that the free end faces upward) together with the shaft 65. The second restricting means 52 holds the second position of the stacker 13, and after the second position is released at the time of switching from the second position to the first position, When switching from the position to the second position, the posture of the stacker 13 before switching to the second position is restricted to an inclined posture (an inclined posture such that the free end faces upward) together with the shaft 65.

  The position switching means 4 configured as described above includes two restriction means, that is, first restriction means 51 and second restriction means 52, that is, two means for restricting the posture of the stacker 13. In the process of the switching operation, the stacker 13 is maintained in an inclined posture with the free end side facing upward, and the function of regulating the posture of the stacker 13 is alternately transferred.

  Therefore, this makes it possible to move the stacker 13 to the first position only by a simple operation of moving up and down the shaft 65 as the operated portion provided between the first restricting means 51 and the second restricting means 52 within the guide hole 55. It is possible to perform bidirectional position switching operation from the position to the second position and from the second position to the first position, and by using two restricting means, each position can be changed. Can be securely held. That is, the position switching operation of the stacker 13 can be performed only by operating the operation lever 69 up and down, and the position switching operation of the stacker 13 can be further easily understood and simplified.

  In particular, as described with reference to FIG. 1, the printer unit 10 according to the present invention includes the scanner unit 9 at the top, and it becomes difficult for the scanner unit 9 to operate with the stacker 13 itself. However, by operating the operation lever 69 as described above, the position of the stacker 13 can be switched in both directions, and the position switching operation can be performed more easily than the configuration in which the stacker 13 itself is operated. It becomes.

  In addition, in the process of switching the stacker 13 from the first position to the second position, from the state where the posture of the stacker 13 is regulated by the contact of the first engaging portion 67 with the second regulating surface 59, the second The inclination angle of the stacker 13 at the time of switching to the state restricted by the contact of the engaging portion 68 with the fourth restriction surface 63 is the inclination angle immediately before the change (with respect to the horizontal plane of the stacker 13 indicated by the phantom line in FIG. 13). If the inclination angle) is α1, and the inclination angle immediately after switching (inclination angle with respect to the horizontal surface of the stacker 13 shown by a solid line in FIG. 13) is α2, the relationship of α1> α2 is established, and the second relationship is set immediately before switching. The second restriction surface 59 and the fourth restriction surface 63 are formed so that the joint portion 68 faces the fourth restriction surface 63.

  Therefore, when the first engaging portion 67 is separated from the second restricting surface 59 and the second engaging portion 68 is in contact with the fourth restricting surface 63 as described above, the second engaging portion 68 and the fourth engaging portion 68 as shown in FIG. A gap C is formed between the regulating surface 63 and the second engaging portion 68 is below the upper end (indicated by reference symbol T) of the vertical surface that already forms the fourth regulating surface 63. positioned. Therefore, in the process of displacing the shaft 65 downward, the second engagement portion 68 can be reliably switched to the second position without being caught by the upper end T of the vertical surface forming the fourth restriction surface 63. It is possible.

<< 3. Tray configuration >>
Next, the configuration of the tray 90 as a “plate-shaped transport medium” on which an optical disk as a recording medium or a jetting medium can be set will be described with reference to FIGS. 14 and 15. 14 is a plan view of the tray 90, and FIG. 15 is an external perspective view of the front end of the tray 90. FIG.
As shown in FIG. 15, the tray 90 has a rectangular shape in a plan view, forms a plate shape that can be nipped by the transport driving roller 30 and the transport driven roller 31, and rotates along with the rotation of the transport driving roller 30. Scan feed is possible.

  The tray 90 is integrally formed of a resin material so as to include a tray main body 91 and a set portion 92. As shown in the figure, the set portion 92 is constituted by a concave portion having a circular shape in plan view. A convex portion 98 is formed at the center of the set portion 92, and when the optical disc is set in the set portion 92, the center hole of the optical disc is fitted into the convex portion 98, thereby determining the position of the optical disc in the set portion 92. It is like that.

  The vertical direction of FIG. 14 is the conveyance direction of the tray 90, and when inserting (feeding) the tray 90 into the linear conveyance path via the stacker 13 in the first position, FIG. The upper part is inserted as a tip. That is, reference numeral 93 indicates the front end of the tray 90. The tip 93 extends in the insertion direction of the tray 90 (upward in FIG. 14) with respect to the horizontal surface 97 and the inclined surface 96, which will be described in detail later. This will be described in detail later.

  A tongue piece 94 is formed integrally with the tray 90 at the front end 93 of the tray 90 so as to protrude in the insertion direction of the tray 90. The tongue piece 94 is tapered toward the tip in a plan view and a side sectional view (not shown), and its bottom surface forms a flat surface together with the bottom surface of the tray main body 91. In addition, the front end 93 of the tray 90 is also formed so as to taper toward the front end in a side sectional view (not shown) like the tongue piece portion 94.

  This is due to the following reason. That is, when the tray 90 is inserted into the linear conveyance path, the tray 90 is inserted toward the back side of the apparatus through the stacker 13 at the first position with the tip 93 of the tray 90 as a head. At this time, the discharge driven roller 42 is separated from the discharge drive roller 41 by a roller position switching means 5 described later, the pressure roller 78 (FIG. 1) advances into the conveyance path, and the tray 90 has the discharge drive roller 41 and the pressure roller 78. (When the conveyance path is viewed from the side). In this state, the discharge driving roller 41 is rotationally driven, whereby the tray 90 is fed toward the transport roller 29.

  In order to perform sub-scan feeding of the tray 90 by the transport driving roller 30 and the transport driven roller 31, the front end 93 of the tray 90 needs to be inserted between the transport driving roller 30 and the transport driven roller 31. Since the tongue piece 94 is formed at the front end 93 of the sheet, when the tray 90 is conveyed toward the conveyance roller 29 as the discharge driving roller 41 rotates, the tongue piece 94 is conveyed to the conveyance drive roller 30. The leading edge 93 of the tray 90 enters between the transport driving roller 30 and the transport driven roller 31 after that, and the tray 90 is nipped by both rollers.

That is, since the area of the front end of the tray 90 (as viewed in plan) is extremely reduced by the tongue piece portion 94, the front end 93 of the tray 90 can be easily inserted between the transport driving roller 30 and the transport driven roller 31 with a small force. Can do. Accordingly, this makes it possible to allow the tray 90 to enter between the transport driving roller 30 and the transport driven roller 31 without using a means for separating (release) the transport driven roller 31 from the transport driving roller 31. .
Incidentally, a horizontal surface 97 and an inclined surface 96 are formed in the vicinity of both side ends on the front end side of the tray 90. The roles played by the horizontal surface 97 and the inclined surface 96 will be described in detail later.

<< 4. Configuration of urging device and roller position switching means >>
Subsequently, with reference to FIGS. 16 to 25, a configuration of a biasing device (torsion spring 49) for biasing the paper discharge frame Assy 45 toward the contact position, and the paper discharge frame Assy 45 are displaced from the contact position to the separated position. The configuration of the roller position switching means 5 will be described in detail. 16 is a perspective view showing a mounting state of the paper discharge frame Assy 45, FIG. 17 is a perspective view of the paper discharge frame Assy 45, the stacker 13, and the position switching means 4, FIG. 18 is a side view thereof, and FIG. FIG. 20 is a front view of FIG. 20, FIG. 21 is an external perspective view of the release member 75, and FIGS. 22 to 26 are the periphery of the discharge frame Assy45. It is a sectional side view of the conveyance path | route.

[4-1. Configuration of Energizing Device]
As shown in FIGS. 16 and 17, a paper discharge frame Assy 45 serving as a “biased member” and a “driven roller support frame” includes a paper discharge frame 46 formed of a metal plate material and a roller formed of a resin material. The support member 47 is provided, and has a shape extending in the main scanning direction (paper width direction).
A holder portion 44 that pivotally supports the discharge driven roller 42 is integrally formed on the roller support member 47 so as to be localized in the main scanning direction, and a bearing portion that pivotally supports a release member 75 described later. 47a and 47a are integrally formed.

  The discharge frame Assy 45 includes a first position where the discharge driven roller 42 comes into contact with the discharge drive roller 41 by guide means (not shown) (hereinafter referred to as “contact position”: see FIG. 22), and the discharge driven roller 42 is a discharge drive roller. A second position (hereinafter referred to as “separation position”: see FIG. 26) that is separated from 41 is displaceably provided, and is contacted by a torsion spring (biasing device) 49 shown in FIGS. 19 and 20. It is provided in a state of being biased toward the position.

  Note that the paper discharge frame Assy 45 is held in a substantially horizontal position as shown in FIG. 26 at the separation position. This is because the upstream side of the discharge frame Assy 45 is the main scanning area of the carriage 35. For example, when the discharge frame Assy 45 is inclined so that the upstream side of the discharge frame Assy 45 is obliquely upward, This is because the upstream end of the paper discharge frame Assy 45 interferes with the carriage 35. Therefore, by setting the paper discharge frame Assy 45 in the horizontal position at the separation position as described above, both the paper discharge frame Assy 45 and the carriage 35 are prevented from greatly interfering with each other, and the size of the apparatus is prevented from being increased. .

  Next, the torsion spring (biasing device) 49 that biases the paper discharge frame Assy 45 will be described in detail. As shown in FIGS. 19 and 20, at the both ends in the longitudinal direction of the paper discharge frame 46 (FIGS. 19 and 20 show one of the ends), the surface (upper surface) on the contact position side has a sheet conveyance path. A tongue piece 46a extending in parallel (in the direction of the paper surface in FIG. 20) is formed, and the torsion part 49a of the torsion spring 49 is provided in the tongue piece 46a.

  Then, one end 49b of the torsion spring 49 hangs from the twisted portion 49a substantially perpendicularly to the paper discharge frame 46 and is locked to the paper discharge frame 46, and the other end 49c is shown in FIGS. 19A and 20A. When the paper discharge frame Assy 45 is in the contact position, the frame 48 extends in a direction crossing the displacement direction (vertical direction in FIG. 20) of the paper discharge frame Assy 45 with respect to the twisted portion 49a and is positioned in the same direction. It latches in the latching | locking part 48a formed in this. Thus, the torsion spring 49 takes a predetermined opening angle when the paper discharge frame Assy 45 is in the contact position.

  Since the torsion spring 49 exerts an urging force in the direction in which the one end 49b and the other end 49c open, the torsion spring 49 corresponds to the vertical direction of the urging force F that urges the locking portion 48a by the other end 49c (the displacement direction of the paper discharge frame Assy45). The force FV is a biasing force that biases the paper discharge frame Assy 45 toward the contact position.

  Here, at the contact position of the paper discharge frame Assy 45 shown in FIG. 20A, the other end 49c of the torsion spring 49 is an angle close to the direction orthogonal to the displacement direction (vertical direction) of the paper discharge frame Assy 45 ( The component force FV is relatively large because it extends at a steep angle. However, as shown in FIG. 20B, when the paper discharge frame Assy 45 takes a separated position, the other end 49c of the torsion spring 49 is an angle close to the direction along the displacement direction (vertical direction) of the paper discharge frame Assy 45 (loose). The component force FV becomes small.

  That is, a torsion spring 49 as an urging device (urging means) for urging the paper discharge frame Assy 45 is provided so that its posture changes in accordance with the displacement operation of the paper discharge frame Assy 45. Along with the change, the component FV of the force that biases the paper discharge frame Assy 45 toward the contact position is provided so as to decrease as the paper discharge frame Assy 45 moves from the contact position toward the separation position.

  This is due to the following reason. That is, when printing is performed on the paper P such as plain paper or exclusive paper, if the discharge driven roller 42 is separated from the discharge driving roller 41, the paper P cannot be discharged or the paper P floats. There is a risk of rubbing against the recording head 36 and soiling the printing surface. Therefore, when printing on paper P such as plain paper or special paper, it is desirable that the paper discharge frame Assy 45 be securely held at the contact position.

  In order to securely hold the paper discharge frame Assy 45 at the contact position, it is effective to dispose, for example, a strong compression spring between the paper discharge frame Assy 45 and the frame 48 located above the paper discharge frame Assy 45. In this way, simply by increasing the biasing force, when printing is performed on the label surface of the optical disc, the operating force for displacing the paper discharge frame Assy 45 from the contact position to the separation position is increased from the contact position toward the separation position. As a result, the amount of work increases and the operability decreases.

  However, as described above, the position of the torsion spring 49 that biases the paper discharge frame Assy 45 toward the contact position changes with the displacement operation of the paper discharge frame Assy 45, and the paper discharge frame as the posture changes. Since the component FV of the force that biases the Assy 45 toward the contact position becomes smaller from the contact position toward the separation position, the biasing force that biases the paper discharge frame Assy 45 at the contact position that requires the greatest biasing force. Becomes maximum, and the paper discharge frame Assy 45 can be reliably held at the contact position.

  Since the urging force decreases from the contact position toward the separation position, the amount of work when the paper discharge frame Assy 45 is displaced to the separation position does not increase, and it is possible to prevent a decrease in operability. Become. In particular, in the present embodiment, the sheet discharge frame Assy 45 is displaced to the separated position as the tray 90 is inserted by the roller position switching means 5 described later, so that the resistance when the tray 90 is inserted is reduced. Thus, the insertability of the tray 90 is improved.

  Further, by providing the torsion spring 49 in the paper discharge frame Assy 45, it is possible to minimize the installation space of the torsion spring 49, which can contribute to downsizing of the apparatus.

  When the paper discharge frame Assy 45 is in the separated position, the component force FH in the direction orthogonal to the displacement direction of the paper discharge frame Assy 45 increases, but the torsion springs 49 are arranged at both ends in the longitudinal direction of the paper discharge frame Assy 45. Therefore, even if the component force FH increases, they are canceled out and do not adversely affect the paper discharge frame Assy45.

[4-2. Configuration of roller position switching means]
Subsequently, the roller position switching means 5 for displacing the discharge frame Assy 45 from the contact position to the separation position and displacing the pressing roller 78 from the non-pressing position to the pressing position will be described in detail.
The roller position switching means 5 includes a release member 75 shown in FIGS. The release member 75 is formed by a shaft body extending in the main scanning direction, and the shaft end portions 75a and 75a are snap-fitted to the bearing portions 47a and 47a formed on the roller support member 47 as shown in FIG. By doing so, the roller support member 47 is pivotally supported.

  As shown in FIG. 21, a lever portion 76 is formed in the vicinity of one shaft end portion 75a of the release member 75. Further, in the vicinity of the lever portion 76 and in the vicinity of the other shaft end portion 75a, a “pressing portion” is formed. The pressure roller 78 (for example, formed of a rubber roller) is rotatably supported by the bearing portion 77.

  22 shows a state where the discharge driven roller 42 is in contact with the discharge drive roller 41 (contact position of the paper discharge frame Assy 45), and FIG. 26 shows a state where the discharge driven roller 42 is separated from the discharge driven roller 41 (paper discharge frame Assy 45). ) Is shown. 23 to 25 show a state where the paper discharge frame Assy 45 is located between the contact position and the separation position. 22 to 24 show a state in which the pressing roller 78 is in the non-pressing position, and FIGS. 25 and 26 show a state in which the pressing roller 78 is in the pressing position.

  In FIG. 22 showing a state in which the paper discharge frame Assy 45 is in the contact position and the stacker 13 is in the second position, the lever portion 76 protrudes into the conveyance path of the tray 90 and the pressing roller 78 is shown in the drawing. The tray 90 is retracted from the conveyance path of the tray 90 (non-pressing position). Here, the release member 75 is provided in a state in which the turning tendency such that the lever portion 76 protrudes into the conveyance path of the tray 90 is biased by a biasing force of a biasing means (for example, a torsion spring) (not shown). (In the direction of arrow r in FIG. 22).

Here, the paper discharge frame Assy 45 is provided on the upper portion of the stacker 13 as shown in FIG. 17, and the leg portions 47b and 47b are formed to hang downward at both ends of the roller support member 47 in the longitudinal direction. Has been.
The legs 47b and 47b are located above the shaft 65 constituting the position switching means 4 as shown in FIG. 18, and the stacker 13 is in the second position from the second position (FIG. 18A). When switching to the first position (FIG. 18B), the shaft 65 is engaged and pushed upward by a predetermined amount by the shaft 65 (FIGS. 18B and 23).

  That is, when the position of the stacker 13 is switched from the second position to the first position, the paper discharge frame Assy 45 is pushed up by a predetermined amount by the shaft 65 in advance. Thus, when the tray 90 is manually inserted, the paper discharge frame Assy 45 has already been displaced upward by a predetermined amount from the contact position toward the separation position, so that the paper discharge frame Assy 45 is later moved to the separation position. The amount of work when displacing is reduced, and the discharge frame Assy 45 can be easily displaced to the separation position with a minimum of effort.

  In particular, in this embodiment, when the paper discharge frame Assy 45 is in the contact position, the component of the force that urges the paper discharge frame Assy 45 toward the contact position by the torsion spring 49 (FIG. 19) is maximized. Yes. That is, the amount of work per unit displacement of the paper discharge frame Assy 45 is the largest at the displacement start portion from the contact position, and the displacement start portion from the contact position requiring the most work amount is the stacker 13. Thus, when the paper discharge frame Assy 45 is later displaced to the separation position, the work amount can be further reduced, and it can be easily displaced to the separation position with a light force.

  Next, when the tray 90 is inserted from above the stacker 13 from the front of the apparatus toward the back of the apparatus in a state where the discharge frame Assy 45 is raised by a predetermined amount from the contact position toward the separation position (FIG. 23), FIG. 25, the engaging portion 95 (see also FIGS. 14 and 15) of the tray 90 pushes up the lever portion 76, the release member 75 rotates in the clockwise direction in the figure, and the pressing roller 78 moves to the tray. Ground to 90 horizontal planes 97.

  When the tray 90 is further inserted toward the rear side of the apparatus from this state, the release member 75 is further rotated while the pressing roller 78 is in pressure contact with the horizontal surface 97, thereby pushing up the discharge frame Assy45 upward. It should be noted that the positions of the pressure roller 78 when the pressure roller 78 presses the tray 90 are all the pressure contact positions of the pressure roller 78.

  When the tray 90 is further inserted into the rear side of the apparatus, the release member 75 is in a stable posture that does not rotate due to the reaction force received from the tray 90 via the pressing roller 78 (the posture shown in FIG. 26), and the pressing roller 78 is By going up the inclined surface 96 formed on the tray 90, the paper discharge frame Assy45 is further pushed upward, and the paper discharge frame Assy45 is displaced to the separation position as shown in FIG. In FIG. 26, reference numerals 78 ′ and 78 ″ indicate intermediate positions of the pressing roller 78.

Here, since the pressing roller 78 gradually increases the pressing force for pressing the tray 90 by climbing the inclined surface 96, the load does not increase suddenly in the process of inserting the tray 90, The tray 90 can be smoothly inserted without a sense of incongruity.
As described above, the discharge frame Assy 45 is displaced to the separation position and the pressing roller 78 is displaced from the non-pressing position to the pressing position through the rotation operation of the release member 75, so that the release stroke of the discharge frame Assy 45 is increased. In addition, the roller position switching means 5 can be configured at low cost without causing an increase in the number of parts as in the case where a link mechanism is employed.

  Further, when the tray 90 is inserted into the transport path, the tray 90 itself displaces the paper discharge frame Assy 45 from the contact position to the separation position and the pressing roller 78 displaces from the non-pressing position to the pressing position. The discharge driven roller 42 can be reliably separated from the discharge drive roller 41 without any operation, and the pressing roller 78 can be displaced from the non-pressing position to the pressing position, thereby improving the user-friendliness. Become. Further, since the tray 90 is pressed toward the discharge driving roller 41 by the pressing roller 78, the tray 90 is lifted, that is, the contact between the optical disk set on the tray 90 and the discharge driven roller 42 can be surely prevented. . Further, since the pressing roller 78 can freely rotate, the conveyance load when conveying the tray 90 can be kept to a minimum.

  In this embodiment, the displacement amount when the paper discharge frame Assy 45 is displaced from the contact position to the separation position is about 5 mm, of which the displacement amount by the position switching operation of the stacker 13 is about 3 mm, and the tray 90 is inserted. Then, the release member 75 is rotated, and the amount of displacement of the pressing roller 78 by moving up the slope 96 formed on the tray 90 is about 2 mm.

  In FIG. 26, the tray 90 is sandwiched between the pressing roller 78 and the discharge drive roller 41. Therefore, the tray 90 can be transported by rotating the discharge drive roller 41. The tray 90 is transported toward the upstream transport roller 29 by the rotation of the discharge driving roller 41, and the tip of the tray 90 is transported by the action of the tongue piece 94 (FIGS. 14 and 15) formed at the front end. The tray 90 enters smoothly between the drive roller 30 and the transport driven roller 31, and the tray 90 is nipped by the transport drive roller 30 and the transport driven roller 31. Thereafter, the conveyance driving roller 30 rotates and is sub-scanned to the downstream side, and recording on the optical disk is performed by the recording head 36.

  When the tray 90 is ejected, the release member 75 is given a turning tendency in the direction indicated by the arrow r in FIG. 22 to 26 in the right direction). Accordingly, the tray 90 can be discharged more smoothly, and the tray 90 can be discharged smoothly.

  In addition, a plurality of (two in this embodiment) pressure rollers 78 are provided, and their positions in the main scanning direction are substantially symmetrical with respect to the center of the tray 90 in the main scanning direction (in this embodiment, the tray 90). Therefore, when the tray 90 is transported by the pressing roller 78 and the discharge driving roller 41, it can be transported appropriately without causing a skew.

  Note that the lever portion 76 formed on the release member 75 protrudes into the paper conveyance path when the paper discharge frame Assy 45 is in the contact position, as seen from the side of the paper conveyance path. Is provided outside the paper transport path in the main scanning direction so as not to prevent the discharge of the paper P. The pressing roller 78 is disposed inside the paper transport path in the main scanning direction, but is retracted above the paper transport path at the contact position of the paper discharge frame Assy 45 as shown in FIG. It does not hinder the discharge of P.

<< 5. Positional relationship among discharge drive roller, pressing roller, and tray >>
Next, the positional relationship among the discharge driving roller 41, the pressing roller 78, and the tray 90 will be described in detail. As described above, the tray 90 is configured to be pressed toward the discharge drive roller 41 as the “drive roller” by the pressing roller 78, but the tray 90 is the recording unit from the stacker 13 as the “guide unit”. When the tray 90 receives a pressing force from the pressing roller 78 before the leading end 93 of the tray 90 reaches the discharge driving roller 41 when inserted toward the discharge drive roller 41, the leading end 93 of the tray 90 is moved to the discharging drive roller. 41, i.e., a "feel of catching" when the tray 90 is inserted.

The discharge drive roller 41 is disposed at a high position with respect to the support surface 13a of the tray 90 (more specifically, the top surface of the rib 82). This is because when the tray 90 is inserted from above the stacker 13, the discharge driving roller 41 is reliably brought into contact with the bottom surface of the tray 90.
Further, when the tray 90 receives a pressing force from the pressing roller 78 before the leading end 93 of the tray 90 reaches the discharge driving roller 41, the tray 90 pushes down the base end side end portion of the stacker 13, whereby the stacker 13 is pivoted. As a result, the stacker 13 can no longer maintain an appropriate posture for guiding the tray 90 in the first position (horizontal posture in the present embodiment).

Therefore, in the present embodiment, the front end 93 of the tray 90 reaches the discharge driving roller 41 before the pressing roller 78 presses the tray 90.
Specifically, FIG. 24 shows a state at the time when the tongue piece 94 reaches the discharge driving roller 41, but as shown in the drawing, the pressing roller 78 has not yet pressed the tray 90 at this time. Next, FIG. 25 shows the moment when the pressing roller 78 contacts the horizontal surface 97 (the moment when the pressing roller 78 is switched to the pressing position). At this time, the leading edge 93 of the tray 90 has already reached the discharge driving roller 41. Has reached.

  That is, the front end 93 of the tray 90 extends in the insertion direction of the tray 90 (left direction in the drawing) with respect to the horizontal surface 97 where the pressing roller 78 starts to press the tray 90. Accordingly, the leading edge 93 of the tray 90 reaches the discharge driving roller 41 before the pressing roller 78 presses the tray 90.

  When the front end 93 of the tray 90 reaches the discharge driving roller 41 before the pressing roller 78 presses the tray 90, the front end 93 of the tray 90 is not extended but the discharge driving roller 41. You may make it arrange | position the position of (discharge roller 40) downstream (right direction of a figure). In addition, after the front end 93 of the tray 90 reaches or reaches the discharge driving roller 41, the pressing roller 78 moves the roller position switching unit 5 (release member 75) on the upper surface (horizontal surface 97 or inclined surface 96) of the tray 90. You may comprise so that it may earth | ground.

  As described above, the stacker 13 as guide means for guiding the tray 90, the discharge drive roller 41 that is positioned between the stacker 13 and the recording means 32 (FIG. 2), is in contact with the bottom surface of the tray 90, and is rotationally driven. In the configuration including the pressing roller 78 that is positioned on the tray 90 side with respect to the discharge driving roller 41 and presses the tray 90 toward the discharging drive roller 41 from the upper surface side of the tray 90, the tray 90 is the pressing roller. It is possible to prevent the front end 93 of the tray 90 from coming into contact with the discharge driving roller 41 while being pressed by the 78.

As a result, it is possible to prevent the occurrence of “feeling of catching” when the tray 90 is inserted, or to greatly reduce the degree thereof. Further, since the pressing force with which the pressing roller 78 presses the tray 90 is not directly transmitted to the stacker 13, the tray 90 is not adversely affected on the posture of the stacker 13 in the first position (horizontal posture in this embodiment). The supporting posture can be maintained in an appropriate state. In the embodiment described above, by inserting the tray 90 on which the optical disk is set, the discharge frame Assy 45 is displaced from the contact position to the separated position. Although the pressing roller 78 is displaced from the non-pressing position to the pressing position, the paper discharge frame Assy 45 can also be displaced from the contact position to the separated position by inserting thick board paper or the like.

DESCRIPTION OF SYMBOLS 1 Inkjet printer, 2 paper feeder, 3 recording medium discharge | emission apparatus, 4 position switching means, 5 roller position switching means, 6 operation panel part, 8 cover body, 9 scanner unit, 10 printer part, 11 cover body, 13 stacker , 13a Support surface, 14 Sub stacker, 19 Hopper, 20 Feed roller, 21 Retard roller, 22 Paper return lever, 23 Main frame, 24 On paper guide, 25 Coil spring, 26 Guide roller, 29 Transport roller, 30 Transport drive roller , 31 Conveyance driven roller, 32 Recording means, 33 Carriage, 34 Carriage guide shaft, 35 Ink cartridge, 36 Recording head, 37 Platen, 40 Discharge roller, 41 Discharge drive roller, 42 Discharge driven roller, 43 Guide roller, 44 Holder section , 45 Paper ejection frame Assy, 46 Paper frame, 47 roller support member, 47a bearing portion, 47b engagement portion, 48 frame, 49 torsion spring, 50 guide means, 51 first restriction means, 52 second restriction means, 53 guide means, 54 guide member, 55 guide Hole, 56 rack, 57 1st restriction part, 58
First restriction surface, 59 Second restriction surface, 61 Second restriction portion, 62 Third restriction surface, 63 Fourth restriction surface, 65 shaft, 66 pinion gear, 67 First engagement portion, 68 Second engagement portion, 69 operation lever, 702 stabilization spring, 75 release member, 76 lever part, 77 bearing part, 78 pressure roller, 80A, 80B guide rib, 81A, 81B collar part, 82 rib, 90 tray, 91 tray body, 92 set part, 93 tip, 94 tongue piece, 95 engaging portion, 96 inclined surface, 97 horizontal surface, 98 convex portion, P recording paper

Claims (3)

A guide means for supporting the object to be conveyed medium when inserting the transported medium toward the recording means for performing recording,
A drive roller located between the recording means and the guide means, in contact with the bottom surface of the transported medium , and driven to rotate;
Located on the side of the guide means relative to said drive roller, said a pressing position for pressing from the upper surface side of the conveyed medium toward said driving roller the transported medium, non away from the upper surface of the conveyed medium A pressing device, a pressing device capable of displacing, and a recording device comprising:
When the transported medium is inserted toward the drive roller while being supported by the guide means, the pressing body is pressed by the pressing body at the same time as or after the leading end of the transported medium reaches the drive roller. Displaced to position,
A recording apparatus. Recording means for recording on a recording medium;
A tray for holding a recording medium;
Guide means for supporting the tray when the tray is inserted toward the recording means;
A drive roller located between the recording means and the guide means, in contact with the bottom surface of the tray and driven to rotate;
Positioned on the guide means side with respect to the drive roller, a pressing position for pressing the tray toward the driving roller from the upper surface side of the tray and a non-pressing position spaced from the upper surface of the tray are displaced. A recording device comprising a possible pressing body,
When the tray is inserted toward the driving roller while being supported by the guide means, the pressing body is displaced to the pressing position at the same time as or after the leading end of the tray reaches the driving roller. ,
A recording apparatus. The recording apparatus according to claim 2, wherein the driving roller constitutes a recording medium discharge unit that discharges the recording medium recorded by the recording unit,
The recording medium discharge means comprises a discharge driven roller that rotates in contact with the drive roller,
The discharge driven roller is driven roller support means provided so as to be displaceable so that a contact position where the discharge driven roller comes into contact with the drive roller and a separation position where the discharge driven roller is separated from the drive roller can be taken. Supported by
By the tray to the tray and engage when inserted toward the drive roller while being supported by the guide means, positions置切conversion of the pressing member Ru is displaced to the pressing position from the non-pressing position With means,
Previous SL-position置切switching means, it is rotatably supported on the driven roller support means so as to be rotatable by side viewing the conveying path provided with a lever portion that protrudes to the pressing member and the transport path of the tray A release member;
Biasing means for imparting a turning tendency to the release member so that the lever portion protrudes into the transport path,
When the tray is inserted toward the drive roller while being supported by the guide means in a state where the lever portion protrudes into the conveyance path, the lever portion is pushed up by the tray and the release member rotates. Moving, and configured so that the pressing body is displaced from the non-pressing position to the pressing position with the rotation of the release member,
When the tray is ejected, the lever portion is configured to act so as to push the front end of the tray in the ejection direction by the urging force of the urging means.
A recording apparatus.

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