JP2005104137A - Recording device and liquid jetting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately position and hold a discharge driven roller and other components irrespective of the part tolerance of a linking means in a structure performing the release of the discharge driven roller, interlinking with the action of other components requiring high positioning accuracy. <P>SOLUTION: An openable tray guide 18 provided in the front of a printer and supporting a tray on which an optical disc can be set, a frame 47 supporting the discharge driven roller are linked by the linking means, and the frame 47 (discharge driven roller) displaces vertically, following the opening and closing action of the tray guide 18. A guide pin 48 provided in the frame 47 is flexibly held in the position corresponding to a first position in which the discharge driven roller contacts a discharge driving roller and the position corresponding to a second position where the discharge driven roller separates from the discharge driving roller by a lever 57 receiving the urging force of a tension spring 59. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a recording apparatus that includes a recording head that performs recording on a recording medium and is configured to be able to transport a tray as a transported medium on which an optical disk as an example of the recording medium can be set. 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 the liquid corresponding to the application from the liquid ejecting head corresponding to the ink jet recording head to the ejected medium corresponding to the recording material, 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.

  Some inkjet printers (hereinafter referred to as “printers”) as an example of a recording apparatus can directly perform inkjet recording on a label surface of an optical disk typified by a compact disk. That is, an optical disk as a recording medium is set on a tray as a medium to be transported, which can be transported along a paper transport path by a transport roller, and the tray is transported by the transport roller and recorded. Is to do.

Incidentally, the printer includes a discharge roller that discharges the medium to be transported on the downstream side of the recording head. The discharge roller is composed of a drive roller that is rotationally driven and a driven roller that is driven and rotated in contact with the roller. The driven roller that is disposed on the side in contact with the recording surface is used for recording and preventing white spots. A toothed roller that makes point contact with the surface is used. However, if the toothed roller is pressed against the label surface of the optical disk, the recording data existing immediately below the label surface of the optical disk may be destroyed by the teeth. Accordingly, in a printer capable of performing ink jet recording directly on the label surface of the optical disk, the release means for separating the driven roller from the drive roller in order to prevent the driven roller (toothed roller) from contacting the label surface. Is provided.
The release means is configured to release the driven roller from the drive roller, for example, by operating a dedicated lever provided in the printer (see, for example, Patent Document 1).

JP 2002-192882 A

  Here, the driven roller and the lever for releasing the driven roller are generally linked by a link means, but the operation of other components constituting the printer without using such a dedicated lever. If the follower roller is configured to be released in conjunction with this, it is possible to reduce the number of parts and reduce the size of the apparatus and to prevent the operation from being forgotten. Parts accuracy is required, resulting in an increase in cost.

In other words, according to the above conventional example, the lever operated by the user is a dedicated lever for releasing the driven roller, and therefore the operating range (swing range, that is, positioning accuracy) of the lever is relatively low. There is no particular problem. On the other hand, an openable and closable tray guide that can change between a tray supporting state and a stored state is provided on the downstream side of the discharge roller, and the driven roller is linked to the opening and closing operation of the tray guide. Since the tray guide is required to have a high accuracy in its operation range (rotation range) and the driven roller is also required to have a high accuracy in its vertical movement range, both of them are inevitably required. High link accuracy is required for the link means for linking the above, resulting in an increase in cost. Alternatively, when the component accuracy of the link means is low, there arises a problem that high accuracy cannot be obtained in the operation range (positioning accuracy) of both, and the function to be originally obtained is impaired.
Accordingly, the present invention has been made in view of such problems, and the problem is that in a configuration in which the release of the discharge driven roller is performed in conjunction with the operation of another component that requires high positioning accuracy, the linking means is provided. Regardless of the part tolerance, the two are positioned and held with high accuracy.

  In order to solve the above-described problems, a first aspect of the present invention includes a recording head for recording on a recording medium, and a conveying unit provided on the upstream side of the recording head and conveying the medium to be conveyed to the recording head. And a discharge driving roller that is provided on the downstream side of the recording head and is driven to rotate, and a discharge driven roller that is driven to rotate in contact with the discharge driving roller. And a tray that serves as a medium to be recorded on which a recording medium can be set. The recording apparatus is configured to be transportable by the transport unit and is openable and closable on the downstream side of the discharge unit. A tray guide configured to be able to change between an open state in which the tray is supported by being opened toward the front of the apparatus and a storage state in which the tray is closed so as to be in a substantially vertical standing state from the open state. A discharge driven roller release means for switching between a first position where the discharge driven roller is in contact with the discharge drive roller and a second position where the discharge driven roller is separated from the discharge drive roller, the discharge driven roller release means, In conjunction with the opening / closing operation of the tray guide, when the tray guide is in the open state, the discharge driven roller is displaced to the second position, and when the tray guide is in the stored state, the discharge driven roller is moved to the second position. Further, the first position and the second position are configured to be held by using a biasing force of a biasing unit.

  According to the first aspect, the discharge driven roller release means for releasing the discharge driven roller from the discharge drive roller releases the discharge driven roller in conjunction with the turning operation of the tray guide that requires high positioning accuracy. Therefore, it is necessary to position both the tray guide and the discharge driven roller with high accuracy. Here, for example, in the case where the tray guide and the discharge driven roller are linked via the link means or the like and rigidly positioned, if the component accuracy of the link means is low, the positioning accuracy of the both decreases. On the other hand, raising the accuracy of the parts will increase the cost. However, in the first aspect, the biasing force of the biasing means is set between the first position where the discharge driven roller is in contact with the discharge drive roller and the second position where the discharge driven roller is separated from the discharge drive roller. Since it is configured to be held softly by using it, the tray guide and the discharge driven roller can be positioned with high accuracy without being affected by the accuracy of the parts such as the link means, and the link means etc. Therefore, it is not necessary to improve the accuracy of the parts.

  According to a second aspect of the present invention, there is provided a recording head for recording on a recording medium, a conveying means provided on the upstream side of the recording head, for conveying the conveying medium to the recording head, and a downstream side of the recording head. A discharge means for discharging the medium to be conveyed to the outside of the apparatus, and a discharge driven roller that rotates and is driven to rotate in contact with the discharge drive roller. A recording apparatus in which a tray as the transported medium on which a recording medium can be set is configured to be transported by the transport unit, and supports the tray and guides the tray to a transport path of the transported medium A tray guide having a surface pivotally supports the base end side of the tray guide so as to be rotatable directly above the transport path while facing the transport path of the transported medium, and When the guide is in a standing position, the tray guide is retracted from the transport path, and when the tray guide is in a lying position, the guide surface is configured to extend the transport path, Discharge driven roller release means for switching between a first position where the discharge driven roller is in contact with the discharge drive roller and a second position where the discharge driven roller is separated from the discharge drive roller is provided, and the discharge driven roller release means includes the tray guide. The discharge driven roller is displaced to the second position when the tray guide takes the lying posture, and the discharge driven roller is moved to the second position when the tray guide takes the standing posture. It is comprised so that it may displace to 1 position, and it is comprised so that the said 1st position and 2nd position may be hold | maintained using the urging | biasing force of an urging means. And it features.

According to a third aspect of the present invention, in the first or second aspect, the discharge driven roller release means includes a guide pin that protrudes toward a side surface of the recording apparatus in a frame member to which the discharge driven roller is attached. The guide pin is provided with a guide plate in which a guide hole for guiding the guide pin to be displaced up and down and a rod in which a hole for loose insertion of the guide pin is formed, and the guide pin and the tray guide are linked. The guide pin engages with the link means and the guide pin, and receives the urging force of the urging means, and when the discharge driven roller is in the first position, the guide pin is held so as to hold the first position. And a lever member that urges the guide pin to hold the second position when the discharge driven roller is in the second position. Characterized in that it is configured Te.
According to the third aspect, the discharge driven roller release means links the guide pin provided on the frame member that pivotally supports the discharge driven roller by the link means and the tray guide. Due to the configuration and the effect, the tray means and the discharge driven roller can be positioned with high accuracy without requiring high component accuracy in the link means.

According to a fourth aspect of the present invention, in the second aspect, the discharge driven roller release means uses the urging means for urging the lever member in a single direction. It is characterized by comprising two stabilizing means for switching the direction in which the lever member biases the guide pin at the opening angle.
According to the fourth aspect, since the second stabilizing means for urging the guide pin (the discharge driven roller) to both the first and second positions by a single urging means is provided. The discharge driven roller release means can be configured with a simple structure and at low cost. The “2 stabilization means” refers to a means that has two positions to be held and has a function of stably holding an object (the guide pin) at one of the two positions. .

According to a fifth aspect of the present invention, in the third or fourth aspect, the link lever constituting the link means is provided on the shaft of the discharge drive roller, and the shaft is swung around the shaft of the discharge drive roller. It is configured to move.
According to the said 5th aspect, since the link lever which comprises the said link means is provided in the axis | shaft of the said discharge drive roller, it can contribute to space saving and cost reduction.

According to a sixth aspect of the present invention, in any one of the first and third to fifth aspects, the recording medium is provided on the downstream side of the discharge unit and is opened to the front side of the apparatus to stack the recording medium. A stacker configured to be able to change between an open state to be closed and a stowed state in which the open state is closed substantially vertically from the open state by an opening / closing operation substantially similar to the tray guide, And when each of the said stacker is in the said accommodation state, it is comprised so that the said tray guide may be located inside the said stacker.
According to the sixth aspect, the tray guide and the stacker are configured to perform substantially the same opening / closing operation, and when each is in the retracted state, the tray guide is positioned inside the stacker. Since it is configured, the installation space for the tray guide can be minimized.

  According to a seventh aspect of the present invention, there is provided a liquid ejecting head that ejects liquid onto the ejected medium, a transport unit that is provided upstream of the liquid ejecting head and transports the transported medium to the liquid ejecting head, and the liquid A discharge unit that is provided on the downstream side of the ejection head and includes a discharge drive roller that is rotationally driven and a discharge driven roller that is driven to rotate in contact with the discharge drive roller; The liquid ejecting apparatus is configured such that a tray as the medium to be ejected, on which the medium to be ejected can be set, is configured to be transportable by the transporting means, and is provided to be openable and closable downstream of the discharging means A tray guide configured to be able to change between an open state in which the tray is supported by being opened toward the front, and a storage state in which the tray is closed so as to be in a substantially vertical standing state from the open state. A discharge driven roller release means for switching between a first position where the discharge driven roller is in contact with the discharge drive roller and a second position where the discharge driven roller is separated from the discharge drive roller, the discharge driven roller release means, In conjunction with the opening / closing operation of the tray guide, when the tray guide is in the open state, the discharge driven roller is displaced to the second position, and when the tray guide is in the stored state, the discharge driven roller is moved to the second position. Further, the first position and the second position are configured to be held by using a biasing force of a biasing unit.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following, an outline of an ink jet printer (hereinafter referred to as “printer”) 1 as an example of “recording apparatus” and “liquid ejecting apparatus” according to the present invention will be described first with reference to FIGS. 1 to 4. Here, FIGS. 1, 3, and 4 are external perspective views of the printer 1, and FIG. 2 is a schematic side sectional view of the printer 1. In the following, the right direction (front side of the printer) in FIG. 2 is referred to as “downstream side” of the paper transport path, and the left direction (back side of the printer) is referred to as “upstream side”.

In FIG. 1, the printer 1 can feed a recording sheet (hereinafter referred to as “sheet P”) as an example of a “recording medium”, a “conveyed medium”, and an “ejected medium” in an inclined position at a rear portion. As shown in FIGS. 1 and 3, the apparatus 2 is provided, and an open state (FIG. 3) in which the sheets P are stacked by opening the front side of the apparatus as shown in FIGS. 1 and 3, and a substantially vertical standing state from the open state A stacker 13 configured to be able to change the closed storage state (FIG. 1) and open / close (turning) operation is provided in the lower case 17 forming the bottom of the apparatus. The stacker 13 includes a stacker main body 14 and a sub stacker 15, and is rotatable about a rotation shaft 14a (see FIG. 5) of the stacker main body 14. The stacker 13 is rotated and opened toward the front side of the printer. By pulling out the sub stacker 15 from the stacker body 14, a stack surface on which the sheets P are stacked is formed.
The outside of the printer 1 is covered with a case-like housing 11, and an openable / closable cover 12 for performing operations such as ink cartridge replacement is provided at the upper center of the case 11. The exterior is constituted by the housing 11 and the cover 12.

  Next, the sheet conveyance path will be described in detail with reference mainly to FIG. In FIG. 2, the feeding device 2 includes a hopper 21, a feeding roller 23, a retard roller 27, and guide rollers 25 and 26, and conveys the paper P to the inkjet recording head 39. The set sheets P are fed one by one toward the transport driving roller 33 and the transport driven roller 34 constituting the “means”.

  More specifically, the hopper 21 is formed of a plate-like body, and is configured to be swingable around an upper swing fulcrum (not shown). By swinging, the paper P supported on the hopper 21 is supplied. It is brought into pressure contact with the feed roller 23 or separated from the feed roller 23. The feeding roller 23 has a substantially D shape when viewed from the side, and feeds the paper P pressed by the arc portion to the downstream side. On the other hand, the paper P is fed by the transport driving roller 33 and the transport driven roller 34. During conveyance, 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 27 is provided so as to be in press contact with the arc portion of the feed roller 23. The retard roller 27 rotates in contact with the sheet P (clockwise in FIG. 2) when the sheet P is fed without the double feeding of the sheet P, and the sheet P is rotated. When there are a plurality of sheets between the feeding roller 23 and the retard roller 27, the friction coefficient between the sheets is lower than the friction coefficient between the sheet P and the retard roller 27. It becomes. Therefore, this prevents the next and subsequent sheets P, which are to be double-fed by the uppermost sheet P to be fed, from being fed downstream from the feeding roller 23 and is prevented from being double-fed.
The guide rollers 25 and 26 are provided so as to be freely rotatable, and as shown in the drawing, the paper P is in contact with the feeding roller 23 while the paper P is being transported by the transport driving roller 33 and the transport driven roller 34, so that no transport load is generated. Have a role.

  The sheet P fed by the feeding device 2 is guided by the guide 29 and reaches the conveyance drive roller 33 that is rotationally driven by the motor and the conveyance driven roller that is driven to rotate while being in pressure contact with the conveyance drive roller 34. . The conveyance driven roller 34 is pivotally supported by a holder 31, and the holder 31 is attached to a main frame (not shown) constituting the base of the printer 1 via a spring (not shown). The paper P that has reached the transport driving roller 33 is transported downstream at a predetermined pitch by the rotation of the transport driving roller 33.

  An ink jet recording head (hereinafter referred to as “recording head”) 39 and a platen 41 are arranged on the downstream side of the transport driving roller 33 so as to face the recording head. The recording head 39 is provided at the bottom of the carriage 35, and the carriage 35 is driven to reciprocate in the main scanning direction by a drive motor (not shown) while being guided by a carriage guide shaft 37 extending in the main scanning direction. The carriage 35 is equipped with an independent ink cartridge (not shown) for each of a plurality of colors, and supplies ink to the recording head 39.

  On the platen 41 that defines the distance between the paper P and the recording head 39, ribs 43, 43, 43 are formed on the surface facing the recording head 39, and recesses 42, 42 are formed. The concave portion 42 is for discarding ink ejected to an area off the edge of the paper P, so that so-called borderless printing can be performed in which printing is performed without margins on the edge of the paper P. Yes. In addition, an ink absorbing material (not shown) that absorbs the discarded ink is disposed in the concave portion 42, and from the ink absorbing material to a waste liquid tray (not shown) provided below the platen 41. Ink is guided.

  Subsequently, on the downstream side of the recording head 39, an auxiliary roller 46, a discharge driving roller 44 and a discharge driven roller 45 constituting “discharge means” are provided. A plurality of discharge drive rollers 44 are provided in the axial direction of the rotation of the discharge drive roller shaft 44a, and the discharge driven rollers 45 are provided on a frame 47 (see also FIG. 8) formed of a metal plate that is long in the main scanning direction. It rotates following the discharge drive roller 44. The sheet P on which recording has been performed by the recording head 39 is nipped by these rollers and discharged toward the stacker 13. The auxiliary roller 46 located on the upstream side of these rollers contacts and rotates the paper P from above, and prevents the paper P from being lifted, thereby maintaining a constant distance between the paper P and the recording head 39.

  The above is the outline of the paper conveyance path. The printer 1 is configured to be capable of ink jet recording directly on the label surface of an optical disk represented by a compact disk in addition to the paper P as a recording medium. As shown in FIG. 4, the optical disc D is transported through the paper transport path in a state of being set on a tray T having a plate shape. The tray T is configured separately from the printer 1 and is inserted from the front side of the printer 1 while being supported by a tray guide 18 described later.

  3 and 4, reference numeral 18 denotes a tray guide for guiding the tray T when recording is performed on the optical disc D using the tray T. The tray guide 18 is provided so as to be freely openable and closable (rotatable) downstream of the discharge drive roller 44 and the discharge driven roller 45, and is opened toward the front of the apparatus as shown in FIG. And a storage state closed so as to be in a substantially vertical standing state as shown in FIG.

  As shown in FIGS. 1, 3, and 4, the tray guide 18 and the stacker 13 change (open and close) between an open state and a stored state by performing similar rotation operations. That is, in the storage state, each is in a substantially vertical standing state, and is turned into a use state by being rotated and opened so as to fall from the vertical posture toward the front side of the apparatus. When each is in the stowed state, the tray guide 18 is positioned substantially parallel to the inside of the stacker 13, and when each is in the open state, the tray guide 18 is placed on the stacker 13 in a substantially horizontal posture. And the stacker 13 is held in a posture that gently faces upward so that the discharged paper P does not fall (see also FIGS. 5, 6, and 7).

  As described above, the printer 1 includes the tray guide 18 that can be used and stored by rotating to the downstream side of the discharging unit. It is user-friendly without having to manage separately. Further, since the tray guide 18 can be changed between the use state (open state) and the storage state only by the rotation operation, the operability is good. Further, as shown in FIGS. 4 and 7, the tray guide 18 is configured to block a part of the sheet P in the conveyance path of the paper P in the opened state and to retreat above the conveyance path in the stored state. Therefore, in the storage state where the tray guide 18 is not used, the discharge of the normal recording medium (paper P) is not hindered, and the discharged paper P is correctly stacked on the stacker 13.

  In addition, the tray guide 18 and the stacker 13 are configured to perform substantially the same pivoting operation (opening / closing operation), and the tray guide 18 is configured to be positioned inside the stacker 13 when each is in the storage state. Therefore, the installation space for the tray guide 18 can be minimized.

  The above is the schematic configuration of the printer 1, and the discharge driven roller release means (hereinafter referred to as “release device”) that releases the discharge driven roller 45 from the discharge drive roller 44 will be described in detail below with reference to FIGS. 5 to 11. To do. 5 to 7 are schematic side sectional views of the printer 1. FIG. 8 is a perspective view of the release device 50. FIGS. 9 to 11 are front views of the release device 50. is there.

  The release device 50 switches between a first position where the discharge driven roller 45 is in contact with the discharge drive roller 44 and a second position where the discharge follower roller 45 is separated from the discharge drive roller 44. That is, the discharge driven roller 45 is a toothed roller so as to make point contact with the paper P in order to prevent transfer and white spots. However, when such a toothed roller comes into pressure contact with the label surface of the optical disc D, there is a possibility that the recorded data existing immediately below the label surface of the optical disc D may be destroyed by the teeth. Therefore, when ink jet recording is directly performed on the optical disk D, the discharge driven roller 45 is separated from the discharge drive roller 44 by the release device 50 so that the discharge driven roller 45 does not contact the label surface of the optical disk D.

  The release device 50 is configured so that the discharge driven roller 45 is separated from the discharge drive roller 44 in linkage with the rotation operation of the tray guide 18 by the link means linked to the tray guide 18. 8 and 9, reference numerals 51 and 53 denote link rods and link levers that constitute the link means, respectively. The link lever 53 has a cylindrical portion 53 and levers 53b and 53c extending from the cylindrical portion 53, and the cylindrical portion 53 is fitted into the shaft end of the discharge driving roller shaft 44a, so that the discharge driving roller shaft 44a is centered. Thus, it is provided so as to be swingable clockwise and counterclockwise in FIG. The link rod 51 engages with a protrusion 18c provided at a position deviated from the rotation shaft 18b of the tray guide 18, and the link lever 53 engages with a shaft 53e provided on the lever 53b, thereby the tray guide. 18 and the link lever 53 are connected.

  Next, two guide pins 48 and 49 are provided at predetermined intervals at both ends of the frame 47 that pivotally supports the discharge driven roller 45 so as to protrude in the longitudinal direction (side surface side of the printer 1). The guide pins 48 and 49 are loosely inserted into the guide holes 56 a and 56 b formed in the guide plates 55 erected on both sides of the frame 47. The guide holes 56a and 56b are elongated holes having a stepped shape as shown in FIG. 11. The guide pins 48 and 49 are respectively guided to the guide holes 56a and 56b, so that the frame 47 slides and is discharged. The height position of the driven roller 45 changes.

  Here, the frame 47 is configured to be slid by the link lever 53. That is, a hole 53d is formed at the tip of the lever 53c as a “rod”, and the guide pin 48 is loosely inserted into the hole 53d. When the tray guide 18 rotates about the shaft 18b, the link means by the link rod 51 and the link lever 53 operates, and the lever 53c applies an external force to the guide pin 48 to displace the inside of the elongated hole 56a. Therefore, the frame 47 is slid.

  Since the guide holes 56a and 56b are stepped, the frame 47 is gradually displaced upward while sliding to the front side of the printer (right side in the figure) as shown in the changes in FIGS. . This is because the carriage 35 exists above the frame 47 in the state shown in FIG. 9 (see FIG. 5), so that the frame 47 does not collide with the carriage 35, that is, the carriage 35 is avoided. And can be displaced upward.

  Next, as shown in FIG. 9 showing the state where the discharge driven roller 45 is in the first position and FIG. 11 showing the state where the discharge driven roller 45 is in the second position, the state of the guide pin 48 is held by the lever 53c. Instead, the lever 57 is configured to hold the state. Specifically, the lever 57 has a substantially V shape and is provided so as to be swingable about a shaft 58. The urging force of the tension spring 59 acts on the tip of one end 57a extending from the shaft 58, and the lever 57 is provided in a state of swinging counterclockwise in FIG. The other end 57b extending from the shaft 58 engages with the guide pin 48. When the discharge driven roller 45 is in the first position (in contact with the discharge drive roller 44), the inclined surface 57c causes the guide pin 48 to move. The discharge driven roller 45 is held at the first position by pressing toward the lower end portion of the guide hole 56a (to the left in the general view). On the other hand, when the discharge driven roller 45 is in the second position (a state where the discharge driven roller 45 is separated from the discharge drive roller 44), as shown in FIG. The discharge driven roller 45 is held in the second position by pressing (upwardly in the schematic diagram).

  Hereinafter, further details including the movement of the tray guide 18 and the stacker 13 will be described. 1 and 5 show a state in which the tray guide 18 and the stacker 13 are in the stored state. In the housed state, the tray guide 18 is erected so as to be along a wall 11a (see also FIG. 4) formed so as to hang substantially vertically at the front center of the housing 11, and the stacker 13 is also placed in the tray guide. It will be in the standing state just along 18th. That is, in order for the tray guide 18 and the stacker 13 to be stored, a certain accuracy is required for each stationary angle (positioning accuracy).

  Next, FIG. 3 and FIG. 6 show a state in which only the stacker 13 is rotated toward the front side of the apparatus and the sheets P such as plain paper can be stacked. In this state, the stacker 13 stands still in a slightly upward direction as shown so that the paper P discharged by the discharge driving roller 44 and the discharge driven roller 45 can be correctly stacked without dropping from the stacker 13. The angle is regulated by regulating means (not shown).

Next, FIGS. 4 and 7 show a state in which both the tray guide 18 and the stacker 13 are rotated toward the front side of the apparatus, and the tray T can be inserted from the front side of the apparatus. In this state, the tray guide 18 is guided by a regulating means (not shown) so that the guide surface 18b (see FIG. 4) forms a horizontal plane in order to guide the tray T substantially straight and horizontally toward the paper transport path. It is in a regulated state.
Here, in the process in which the tray guide 18 is changed from the storage state shown in FIG. 6 to the open state shown in FIG. 7, as shown in the change from FIG. 9 to FIG. 10 and FIG. First, the inner periphery of the hole 53d of the lever 53c contacts the guide pin 48, and the guide pin 48 is slid in the guide hole 56a. At this time, the lever 57 swings against the urging force of the tension spring 59 by the guide pin 48 as shown in FIG.

  When the guide pin 48 is eventually positioned on the top surface 57d of the lever 57, the direction of the urging force that the guide pin 48 receives from the lever 57 changes. That is, when the guide pin 48 is positioned on the inclined surface 57c of the lever 57, the guide pin 48 is urged toward the lower end (to the left in the general view), and the discharge driven roller 45 is held at the first position. However, when it comes to be positioned on the top surface 57d of the lever 57, the guide pin 48 is urged toward the upper end (generally upward). Since the guide pin 48 is in a free state inside the hole 53d, it is urged to the upper end by the lever 57, and the discharge driven roller 45 is held in the second position. Thus, the lever 57 is only urged in one direction by one tension spring 59, but the direction in which the guide pin 48 is urged by one urging means is changed by the inclined surface 57c and the top surface 57d. It is possible to make it. The guide pin 49 only displaces in the guide hole 56b according to the displacement of the guide pin 48. However, unlike the guide pin 48, there is no means for holding it by the urging force. A landing place 56c is provided at the upper end portion of the guide hole 56b so that the guide hole 56b is held at the upper position (the second position of the discharge driven roller 45) at an easy position. 49 is held.

In this way, the discharge driven roller release means uses one tension spring 59 that biases the lever 57 in a single direction, and the lever 57 is guided by the guide pin 58 at a predetermined opening angle of the tray guide 18. 2 is provided, and the discharge driven roller release means is configured with a simple structure and at low cost.
Although illustration is omitted, components corresponding to the above-described guide pins 48 and 49, guide holes 56a and 56b, lever 57, and tension spring 59 are provided on the opposite side of the frame 47 in the longitudinal direction. On both side ends of the frame 47, the guide pins are guided in the guide holes and are held in two positions by the lever and the tension spring.

  By the way, the tray guide 18 that changes the height position of the discharge driven roller 45 as described above is required to have a certain accuracy (precision) in the rotation angle (the rotation range, that is, positioning accuracy) as described above. On the other hand, the discharge driven roller 45 is not pressed into contact with the discharge drive roller 44 more than necessary at the first position, and the discharge driven roller 45 is not in contact with the label surface of the disk D at the second position. Since it is necessary to ensure the distance from the discharge drive roller 44 precisely, the link rod 51 and the link lever 53 that link the tray guide 18 and the guide pin 48 (discharge driven roller 45) are originally high. Dimensional accuracy is required, resulting in an increase in cost.

  However, in the present embodiment, a link means is used to link the two components (the tray guide 18 and the guide pin 48 (discharge driven roller 45)) that require such high positioning accuracy, and one side When the positioning and holding of the guide pin 48 (discharge driven roller 45), which is a component of the above, is not held rigidly by the link means, it is soft using the biasing force of the tension spring 59 as the biasing means. Since it is configured so as to be held, the link rod 51 and the link lever 53 do not require high dimensional accuracy, and an increase in cost can be prevented. Furthermore, in other words, the tray guide 18 and the discharge driven roller 45 can be positioned and held with high positioning accuracy without being affected by the dimensional accuracy of the link rod 51 and the link lever 53.

  In this embodiment, in order to release the discharge driven roller 45, the guide pin 48 and the tray guide 18 are linked by a link means, and the discharge driven roller 45 moves up and down according to the opening / closing operation of the tray guide 18. However, the discharge driven roller 45 may be moved up and down in conjunction with the operation of the other components of the printer 1 without being limited to the tray guide 18. In this case, as long as high positioning accuracy is required for the operation of the other components, it is possible to effectively obtain the above-described effects of the present embodiment.

  INDUSTRIAL APPLICABILITY The present invention can be used for a recording apparatus typified by a FAX, a printer, or the like, or a liquid ejecting apparatus, that is, an apparatus that ejects liquid onto an ejected medium from a liquid ejecting head and attaches the liquid to the ejected medium It is.

1 is an external perspective view of a printer according to the present invention. 1 is a schematic side sectional view of a printer according to the present invention. 1 is an external perspective view of a printer according to the present invention. 1 is an external perspective view of a printer according to the present invention. 1 is a schematic side sectional view of a printer according to the present invention. 1 is a schematic side sectional view of a printer according to the present invention. 1 is a schematic side sectional view of a printer according to the present invention. It is a perspective view of a discharge driven roller release means. It is a front view of a discharge driven roller release means. It is a front view of a discharge driven roller release means. It is a front view of a discharge driven roller release means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inkjet printer, 2 Feeding device, 3 Paper discharge port, 11 Housing, 12 Upper cover, 13 Stacker, 14 Stacker main body, 15 Sub stacker, 18 Tray guide, 21 Hopper, 23 Feed roller, 25, 26 Guide roller, 27 Retarder, 29 guide, 31 holder, 32 swing shaft, 33 transport drive roller, 34 transport driven roller, 35 carriage, 37 carriage guide shaft, 39 inkjet recording head, 41 platen, 42 recess, 43 rib, 44 discharge drive roller, 45 discharge driven roller, 46 auxiliary roller, 47 frame, 48 guide pin, 49 guide pin, 50 release device, 51 link rod, 53 link lever, 55 guide plate, 56a, 56b guide hole, 57 lever, 58 swing shaft 59 tension spring, D optical disc, P recording paper, T tray

Claims (7)

A recording head for recording on a recording medium;
A conveying means provided on the upstream side of the recording head, for conveying a medium to be conveyed to the recording head;
A discharge unit that is provided on the downstream side of the recording head and includes a discharge drive roller that is rotationally driven and a discharge driven roller that is driven to rotate in contact with the discharge drive roller. And a recording apparatus configured such that a tray as the transported medium on which the recording medium can be set can be transported by the transporting means,
An open state that can be opened and closed on the downstream side of the discharge means, and supports the tray by opening it toward the front of the apparatus, and a closed storage state so as to be in a substantially vertical standing state from the open state; A tray guide configured to be changeable,
A discharge driven roller release means for switching between a first position where the discharge driven roller contacts the discharge drive roller and a second position spaced apart from the discharge drive roller;
The discharge driven roller release means is linked to the opening and closing operation of the tray guide, and when the tray guide is in the open state, the discharge driven roller is displaced to the second position, and the tray guide is in the storage state. Then, the discharge driven roller is configured to be displaced to the first position, and the first position and the second position are configured to be held using a biasing force of a biasing means. A recording apparatus characterized by that. A recording head for recording on a recording medium;
A conveying means provided on the upstream side of the recording head, for conveying a medium to be conveyed to the recording head;
A discharge unit that is provided on the downstream side of the recording head and includes a discharge drive roller that is rotationally driven and a discharge driven roller that is driven to rotate in contact with the discharge drive roller. And a recording apparatus configured such that a tray as the transported medium on which the recording medium can be set can be transported by the transporting means,
A tray guide that supports the tray and includes a guide surface that guides the tray to the transport path of the transported medium is rotatable directly above the transport path while facing the transport path of the transported medium. As well as supporting the base end side of the tray guide,
When the tray guide takes a standing posture, the tray guide is retracted from the transport path,
When the tray guide takes a lying posture, the guide surface is configured to extend the transport path,
A discharge driven roller release means for switching between a first position where the discharge driven roller is in contact with the discharge drive roller and a second position spaced apart from the discharge drive roller;
The discharge driven roller release means is linked to the opening / closing operation of the tray guide, and when the tray guide takes the lying posture, the discharge driven roller is displaced to the second position, and the tray guide is moved to the standing position. When the posture is taken, the discharge driven roller is configured to be displaced to the first position, and the first position and the second position are held using the urging force of the urging means. A recording apparatus characterized by being configured. 3. The guide pin according to claim 1, wherein the discharge driven roller release means projects toward a side surface of the recording apparatus in a frame member to which the discharge driven roller is attached.
A guide plate formed with a guide hole for guiding the guide pin to be displaced up and down;
Link means comprising a rod in which a hole for loosely inserting the guide pin is formed, and linking the guide pin and the tray guide;
Engaging with the guide pin and receiving the urging force of the urging means to urge the guide pin so as to hold the first position when the discharge driven roller is in the first position, And a lever member that urges the guide pin so as to hold the second position when the discharge driven roller is in the second position. 4. The discharge driven roller release means according to claim 3, wherein the lever member uses the urging means for urging the lever member in a single direction, and the lever member is located at a predetermined opening angle of the tray guide. 2. A recording apparatus comprising: 2 stabilizing means for switching a direction in which a guide pin is urged. 5. The link lever constituting the link means according to claim 3, wherein the link lever is provided on a shaft of the discharge drive roller and swings about the shaft of the discharge drive roller. Recording device. 6. The open state according to claim 1 or any one of claims 3 to 5, wherein the recording medium is stacked on the downstream side of the discharge unit and opened to the front side of the apparatus, and substantially perpendicular to the open state. A stacker configured to be changeable by an opening / closing operation substantially similar to the tray guide, and a closed storage state so as to be in a standing state,
The recording apparatus, wherein each of the tray guide and the stacker is configured to be positioned inside the stacker when the tray guide and the stacker are in the stored state. A liquid ejecting head for ejecting liquid onto the ejected medium;
A transport unit provided on the upstream side of the liquid ejecting head, for transporting a transported medium to the liquid ejecting head;
Discharge for discharging the transported medium to the outside of the apparatus, which is provided on the downstream side of the liquid ejecting head and includes a discharge driving roller that is rotationally driven and a discharge driven roller that is driven to rotate in contact with the discharge driving roller. And a liquid ejecting apparatus configured such that a tray as the transported medium on which the ejected medium can be set can be transported by the transporting means,
An open state that can be opened and closed on the downstream side of the discharge means, and supports the tray by opening it toward the front of the apparatus, and a closed storage state so as to be in a substantially vertical standing state from the open state; A tray guide configured to be changeable,
A discharge driven roller release means for switching between a first position where the discharge driven roller contacts the discharge drive roller and a second position spaced apart from the discharge drive roller;
The discharge driven roller release means is linked to the opening / closing operation of the tray guide, and when the tray guide is in the open state, the discharge driven roller is displaced to the second position, and the tray guide is in the storage state. Then, the discharge driven roller is configured to be displaced to the first position, and the first position and the second position are configured to be held using a biasing force of a biasing means. A liquid ejecting apparatus.

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