JP2012076913A - Recording medium cassette, and recording apparatus - Google Patents

Abstract

In a state in which a paper cassette configured to be detachable from a vertical recording apparatus, particularly a paper cassette for storing paper in a vertical posture or an inclined posture is removed from the recording device, the paper is snowed from the paper cassette. Ensure that it does not collapse.
An ink jet printer 1 feeds paper P from a paper cassette 11 toward the lower side of the apparatus, reverses the feeding direction by a reversing path formed by a feeding roller 17, and conveys the paper P toward the upper side of the apparatus. A substantially U-shaped paper conveyance path. The lower end of the paper cassette 11 is configured as a movable tray 23 for hopper up / down, and includes a locking means for locking the movable tray 23 in a closed state when the paper cassette 11 is detached from the ink jet printer 1.
[Selection] Figure 4

Description

  The present invention is configured to be detachable from a recording apparatus for recording on a recording medium, and a recording medium cassette that accommodates the recording medium in a vertical posture or an inclined posture in a state of being mounted on the recording device, And a recording apparatus including the same.

  A recording apparatus typified by a facsimile, a printer, or the like is configured as a so-called “vertical installation type” for the purpose of saving space during installation (particularly space saving in a plane direction) or for other reasons. There is. That is, the height dimension of the apparatus at the time of installation may be configured to be larger than at least one of the width dimension and the depth dimension. Such a recording apparatus is disclosed in, for example, Patent Documents 1 to 5. It is described in.

JP 2006-205630 A JP 2002-127751 A JP 2002-205859 A Japanese Patent Laid-Open No. 06-79935 JP 05-325729 A

  By the way, in a recording apparatus, a paper cassette (sometimes called a paper tray) for storing paper may be provided detachably with respect to the main body of the recording apparatus. In Patent Document 2, the paper cassette is used in a vertically long state. An apparatus is disclosed in which a paper feed tray is detachable in a printer.

  On the other hand, as a structure for feeding out the paper stored in the paper cassette, in addition to a structure using a pickup roller capable of moving back and forth with respect to the paper stored in the paper cassette, the paper stored in the paper cassette is directed to the feeding roller. It is possible to adopt a hopper-up structure.

  Here, in the case of a non-longitudinal type recording apparatus that accommodates paper horizontally, a structure in which the front end side of the cassette is largely opened to bring the paper into contact with the feeding roller may be adopted. In the case of the apparatus, if the structure is such that the front end side of the cassette is largely opened, the paper will collapse when the cassette is set up. Therefore, in the case of a vertically-installed recording apparatus, it is necessary to make an opening structure only at a portion in contact with the feeding roller while basically having a closed structure at the cassette front end side.

  When adopting a hopper-up type feeding structure in such a configuration, it is necessary to further make the closed portion (cover part) on the cassette front side movable (can be opened and closed). If the cover part is easily opened in a state where it is detached from the paper, the paper will fall from the paper cassette.

  Accordingly, the present invention has been made in view of such a situation, and an object of the present invention is to provide a paper cassette configured to be detachable from the recording apparatus, particularly a paper cassette for storing paper in a vertical posture or an inclined posture. It is to reliably prevent the paper from falling from the paper cassette in a state where it is removed from the recording apparatus.

  In order to solve the above problems, a first aspect of the present invention is configured to be detachable from a recording apparatus that records on a recording medium, and the recording medium is mounted in the recording apparatus. A recording medium cassette that is accommodated in a vertical attitude or an inclined attitude, and at a downstream side in the recording medium feeding direction, a cover portion that covers at least the recording medium accommodation space is in a closed state in which the recording medium is held in the cassette. And an open state in which the recording medium can be sent out, and includes a lock unit that locks the cover portion in the closed state when the recording medium cassette is detached from the recording apparatus. It is characterized by.

  According to this aspect, the recording medium cassette including the cover that can be opened and closed on the downstream side in the recording medium feeding direction includes the locking unit that locks the cover in the closed state when the recording medium cassette is detached from the recording apparatus. Therefore, even when the recording medium cassette is detached from the recording apparatus, the cover portion is not easily opened, and the avalanche of the recording medium from the recording medium cassette can be reliably prevented. .

  According to a second aspect of the present invention, in the first aspect, the lock unit releases the lock in response to an operation of mounting the recording medium cassette on the recording apparatus, and the recording of the recording medium cassette is performed. A configuration is provided in which the locking is performed in accordance with a removal operation from the apparatus.

  According to this aspect, since the locking means is configured to perform the locking / unlocking according to the attachment / detachment operation of the recording medium cassette to / from the recording apparatus, the user needs to perform the locking / unlocking by himself / herself. Since the operation is easy and the recording medium cassette is removed from the recording apparatus, the locked state is surely obtained, so that the operation and effect of the first aspect can be obtained with certainty.

  According to a third aspect of the present invention, in the first or second aspect, the lock unit locks the cover part by engaging a boss part provided in the cover part, A lock release position for releasing the lock by releasing the engagement with the boss portion; and a urging means for urging the lock member toward the lock position. It is characterized by being.

  According to this aspect, since the lock means is constituted by the lock member and the biasing means, the lock means can be configured with a simple structure and at low cost.

  According to a fourth aspect of the present invention, there is provided a recording apparatus for recording on a recording medium, wherein the recording medium cassette according to any one of the first to third aspects is detachably provided. . According to this aspect, in the recording apparatus, it is possible to obtain the same effect as any of the first to third aspects.

  According to a fifth aspect of the present invention, in the fourth aspect, the height direction dimension of the apparatus at the time of installation is configured as a vertical type in which at least one of the width direction dimension and the depth direction dimension is larger. It is characterized by.

  According to this aspect, the recording apparatus is configured in a vertical type in which the height dimension of the apparatus at the time of installation is larger than at least one of the horizontal dimension and the depth dimension, that is, the “vertical type” Thus, in the vertical recording apparatus capable of saving the space at the time of such installation, the operational effects of any of the first to third aspects described above can be obtained.

1 is an overall external perspective view of an ink jet printer according to the present invention. 1 is an external perspective view of an ink jet printer according to the present invention with a paper cassette removed. FIG. 1 is an external perspective view of an upper portion of an ink jet printer according to the present invention. 1 is a side sectional view of an ink jet printer according to the present invention. 1 is a side sectional view of an ink jet printer according to the present invention. FIG. 3 is an external perspective view of a paper cassette (with an upper cover closed). FIG. 3 is an external perspective view of a paper cassette (with an upper cover opened). The perspective view of the attachment site | part of a positioning damper. The perspective view of the attachment site | part of a positioning damper. (A) Perspective view of locking means (locked state), (B) is a perspective view of locking means (unlocked state). The figure which shows the function of a return roller. The figure which shows the function of a return roller. (A), (B) is a figure which shows other embodiment of a movable tray.

  Hereinafter, an ink jet printer which is an embodiment of a recording apparatus according to the present invention will be described with reference to FIGS. 1 is an overall perspective view of the inkjet printer 1 according to the present embodiment, FIG. 2 is an external perspective view of the ink jet printer 1 with the paper cassette 11 removed, and FIG. 3 is an upper external perspective view of the inkjet printer 1, FIG. 5 is a cross-sectional side view, and FIGS. 6 and 7 are external perspective views of the paper cassette 11 (FIG. 6 shows a state in which the upper cover is closed, and FIG. 7 shows a state in which the upper cover is opened).

  8 and 9 are perspective views of the mounting portion of the positioning damper 31, FIG. 10A is a perspective view of the locking means 28 (locked state), and FIG. 10B is a view of the locking means 28 (unlocked state). FIGS. 11 and 12 are views showing the function of the return roller 35, and FIGS. 13A and 13B are views showing another embodiment of the movable tray 23.

  4 and 5 illustrate the rollers arranged on the paper transport path of the inkjet printer 1, almost all the rollers are drawn on the same surface, but the paper width direction (FIGS. 4 and 5). The position in the front and back direction of the paper is not necessarily the same (may be the same). Further, in the xyz coordinate system shown in each drawing, the x direction is the horizontal width direction and the paper width direction of the apparatus, and the y direction is the depth direction of the apparatus (hereinafter sometimes referred to as “the thickness direction of the apparatus”). The z direction indicates the device height direction (vertical direction).

〓〓〓1. Overall configuration of inkjet printer
The overall configuration of the inkjet printer 1 will be outlined below. The ink jet printer 1 is a vertical ink jet printer in which the height dimension of the apparatus at the time of installation is at least larger than either the width dimension or the depth dimension. In this embodiment, the height dimension ( 1 is configured to be larger than both the width-direction dimension (reference W in FIG. 1) and the depth-direction dimension (reference D in FIG. 1). In the present embodiment, the width direction dimension W is larger than the depth direction dimension D.

  Note that the depth direction (y direction) and the width direction (x direction) are used in this specification for convenience, that is, when the apparatus is installed, the width direction ( The surface in the x direction) does not necessarily face each other, and the surface in the depth direction (y direction) with a small area may face each other, or any of them may be installed in an oblique direction. However, in any direction, the height direction (z direction) is always the direction along the vertical (gravity) direction.

  The ink jet printer 1 has an appearance of the apparatus formed by a thin box-shaped housing 2, an operation panel 3 having operation buttons arranged on the upper surface of the apparatus, and an interface cable for connecting an interface cable. A connecting portion 8 is provided.

  An upper surface of the apparatus is provided with an ink cartridge mounting portion for mounting a plurality of detachable ink cartridges 6, and reference numeral 7 indicates an ink cartridge cover for opening and closing the ink cartridge mounting portion. The ink cartridge cover 7 is opened and closed by the user when the ink cartridge 6 is replaced.

  A paper discharge port 4 for discharging the recorded paper is provided on the upper surface of the apparatus. Reference numeral 5 denotes a paper discharge port cover for opening and closing the paper discharge port 4. The paper discharge port cover 5 is configured to be openable and closable by the user, and is configured to be automatically opened by an opening / closing mechanism (not shown) when recording is to be executed in a closed state. Yes.

  In FIG. 2, reference numeral 11 indicates a paper cassette as a “recording medium storage unit” that can store (set) a plurality of recording papers (single paper: hereinafter referred to as “paper P”) in a stacked state. The paper cassette 11 is configured to be detachable from the housing 2 as shown in FIG. 2, and when mounted, the appearance of the ink jet printer 1 is configured as shown in FIG. The paper transport path is exposed so that paper jam processing and the like can be performed. The attaching / detaching operation of the paper cassette 11 can be performed by sliding the paper cassette 11 in the z direction in a state where the paper cassette 11 is in the position of FIG. 4 in the y direction.

  As shown in FIGS. 6 and 7, the paper cassette 11 generally includes a tray-shaped cassette body 12 and an upper outer cover 15 that can be opened and closed, and a movable tray 23 that can be swung. The upper outer cover 15 can take a closed state shown in FIG. 6 and an open state shown in FIG. 7 by rotating around a rotation fulcrum 15a provided at a substantially central portion of the cassette body 12. It has become. When the upper outer cover 15 is opened, the paper storage space of the cassette body 12 appears as shown in FIG. 7, and the paper P can be stored.

  The side that becomes the upper part of the cassette (left side in FIGS. 6 and 7) in a state in which the paper cassette 11 is mounted is configured to be able to expand and contract in accordance with the paper size. A tray 18 is provided so as to be slidable in the paper feeding direction (vertical direction when the cassette is mounted).

  Similarly, the upper inner cover 16 is slidable in the paper feeding direction with respect to the upper outer cover 15, and the upper slide tray 18 and the upper inner cover 16 are slid in accordance with the paper size, so that the paper can be slid. A paper storage space suitable for the size can be formed (state shown in FIG. 5).

  Next, an edge guide 21 is provided in the cassette body 12 so as to be slidable in the paper width direction. The edge guide 21 guides the edge of the set paper P at an appropriate position according to the paper size. The The upper outer cover 15 is formed with a long hole 15 b extending in the displacement direction of the edge guide 21, and a part of the edge guide 21 can protrude outside the upper outer cover 15 from the long hole 15 b. (Fig. 6).

  A knob portion 21b is connected to a part of the edge guide 21 that protrudes outside the upper outer cover 15, and the edge guide 21 can be moved even when the upper outer cover 15 is closed by the knob portion 21b. The slide can be operated. That is, when it is determined that the sheet edge is not properly guided after the upper outer cover 15 is closed, the edge guide 21 can be operated without opening the upper outer cover 15.

  Next, a movable tray 23 is provided at the lower part of the cassette (right side in FIGS. 6 and 7) on the downstream side in the paper feeding direction when the paper cassette 11 is mounted, that is, on the side that is the front end of the paper. The movable tray 23 functions as a so-called hopper. Specifically, the movable tray 23 is provided so as to be able to swing around a swinging fulcrum 23a, and is accommodated by swinging with the power of a drive mechanism (not shown). A state (FIG. 5) in which the leading edge of the sheet P is pressed against a feeding roller 37 (described later) and a state (FIG. 4) in which it is separated can be taken.

  In the movable tray 23, a plurality of openings 24a are formed at appropriate intervals along the paper width direction at a position corresponding to the leading edge of the paper, and the opening 24a feeds the stored paper P. The roller 37 can be pressed. Reference numeral 12c denotes a paper tip support wall configured by the cassette body 12 for supporting the paper tip. The paper P accommodated in the state in which the paper cassette 11 is mounted is supported in a state where the front end thereof is in contact with the paper front end support wall 12c.

  Next, the internal configuration of the ink jet printer 1, specifically, the paper conveyance path will be described with reference to FIGS. 4 and 5. In a state where the sheet cassette 11 configured as described above is mounted vertically, a feeding roller 37 as a “reverse roller” is provided at a position facing the front end of the sheet cassette 11. A plurality of feed rollers 37 are arranged on a drive shaft 37a extending in the paper width direction at an appropriate interval in the paper width direction (FIG. 2), and are driven by a motor (not shown) to be in contact with the front end of the paper. By rotating in the state, the paper P is sent to the downstream side.

  The sheet P fed downward by the feeding roller 37 is inverted upward by the feeding roller 37 and the guide members 40 and 41 arranged to face the outer peripheral surface of the feeding roller 37, and serves as a “conveying roller”. Are transported between the transport drive roller 46 and the transport driven roller 47 (which constitutes a paper transport unit). That is, a “paper reversing portion” configured to include the feeding roller 37 and the guide members 40 and 41 forms a substantially U-shaped conveyance path in which the paper P is curved and reversed. Reference numeral 38 denotes a driven roller that assists the feeding of the paper P by the feeding roller 37.

  The conveyance drive roller 46 is a roller that is rotationally driven by a motor (not shown). In this embodiment, wear-resistant particles are attached to the surface of a metal shaft extending in the paper width direction. Belongs to.

  In the present embodiment, the transport driven roller 47 is a roller formed of a resin material, and a plurality of transport driven rollers 47 are arranged at appropriate intervals along the axial direction of the transport drive roller 46, and are not illustrated toward the transport drive roller 46. It is provided in a state of being biased by the biasing force of the means. Then, the paper P is nipped with the conveyance driving roller 46 to rotate the driven.

  An inkjet recording head 59 and a guide member 48 are provided on the downstream side of the transport driving roller 46 so as to face each other. The ink jet recording head 59 is provided on a carriage 58, and the carriage 58 is reciprocated in the paper width direction by receiving the power of a motor (not shown) while being guided by a carriage guide shaft 55 extending in the paper width direction. It is configured.

  In the carriage 58, reference numeral 58a denotes a guided portion that sandwiches a carriage guide plate 56 that extends in the paper width direction. That is, the carriage 58 has a bearing portion through which the carriage guide shaft 55 is inserted. However, since the carriage 58 is provided in an inclined posture as shown in the drawing, there is a tendency to rotate about the carriage guide shaft 55. However, since the guided portion 58 a is configured to sandwich the carriage guide plate 56, the above-described tendency of rotation is stopped, and the posture of the carriage 58 is determined.

  As described above, in this embodiment, the ink cartridge 6 is provided on the apparatus main body side, that is, the ink cartridge 6 is configured as a so-called off-carriage type provided independently from the carriage 58. However, the present invention is not limited to this, and a so-called on-carriage type in which the ink cartridge 6 is mounted on the carriage 58 may be used. In this embodiment, the recording is performed while the carriage 58 moves in the paper width direction (serial printer). However, a fixed recording head that covers the paper width and does not move the carriage 58 in the paper width direction is used. It may be used. Furthermore, the recording method is not limited to the ink jet recording method, and other recording methods may be used.

  Next, the guide member 48 disposed to face the ink jet recording head 59 is formed of a resin material, and supports the paper P to define a gap between the recording surface of the paper P and the ink jet recording head 59. In addition, the guide member 48 has a recess (not shown) for receiving ink ejected in a region off the edge of the paper during borderless printing on the surface facing the ink jet recording head 59. Is provided with an ink absorbing material (not shown) for absorbing ink. Further, below the guide member 48, a waste liquid tank (not shown) for storing the discarded ink is disposed.

  Next, the guide roller 49 provided downstream of the ink jet recording head 59 prevents the paper P from being lifted from the guide member 48, and the discharge driving roller 51 and the discharge driven roller 52 provided downstream of the guide roller 49. The paper discharge means comprising the above discharges the recorded paper P to the outside of the apparatus. In the present embodiment, the discharge drive roller 51 is constituted by a rubber roller, and a plurality of discharge drive rollers 51 are provided at appropriate intervals along the axial direction of the metal shaft extending in the paper width direction, and are driven to rotate by a motor (not shown). . Further, the guide roller 49 and the discharge driven roller 52 are constituted by toothed rollers having teeth along the outer periphery, and are rotated in contact with the paper P.

  Next, the discharge direction of the paper P by the discharge driving roller 51 and the discharge driven roller 52 is set obliquely upward so as to go to the paper cassette 11 in this embodiment, and the paper P discharged by this is shown in FIG. As shown in FIG. 2, the paper is discharged upward from the apparatus while being in sliding contact with the upper outer cover 15 constituting the paper cassette 11. Note that the broken lines in FIG. 5 indicate the passage trajectory of the paper P that is transported along the paper transport path.

〓〓〓2. Locking means for movable tray
Next, the paper cassette 11, particularly the movable tray 23 and the locking means 28 for locking the same will be described in detail. As described above, the movable tray 23 functions as a hopper. The movable tray 23 can swing about the swing fulcrum 23a to press the stored sheet bundle against the feeding roller 37 (a hopper up state (hereinafter referred to as a hopper up state)). The movable tray 23 is also referred to as the “open state”): the state shown in FIG. 5) and the separated state (the hopper down state (hereinafter also referred to as the “closed state” of the movable tray 23): the state shown in FIG. 4). It can be taken.

  As shown in FIGS. 4 and 6, the movable tray 23 is configured integrally with a support plate 25 as a bottom plate and a cover portion 24 that covers the paper accommodation space, and is supported when the hopper is up (FIG. 5). The plate 25 performs a function of pressing the stored sheet bundle toward the feeding roller 37. Further, when the hopper is down (FIG. 4 → FIG. 4), the cover unit 24 functions to return the sheet bundle into the sheet cassette 12.

  When the movable tray 23 is mounted on the apparatus main body of the ink jet printer 1, the support plate 25 can be engaged with a biasing means (not shown). Is always urged toward the feeding roller 37. On the other hand, a cam (not shown) can be engaged with the cover portion 24, and the hopper is brought down against the biasing means by rotation of the cam, or the hopper is pressed by the biasing force of the biasing means. It is configured to be in the up state.

  Here, the sheet cassette 11 is removed from the inkjet printer 1 in order to switch between an open state in which the movable tray 23 can be fed out by swinging and a closed state in which the sheet P is held in the sheet cassette 11. If the state is switched to the open state, the stored paper P will fall avalanche from the cassette opening.

  For this reason, the paper cassette 11 is provided with a lock means 28 that locks the movable tray 23 in the closed state when the paper cassette 11 is detached from the ink jet printer 1. The locking means 28 includes stoppers 29 as “locking members” provided on both side surfaces of the cassette body 12 and urging means (not shown).

  As shown in FIG. 10, the stopper 29 has a recess 29 a at the tip thereof, and this recess 29 a engages with the boss portion 26 formed on the side surface of the tip of the movable tray 23, that is, the boss portion 26 is By entering the recess 29a, the movable tray 23 is locked so as not to swing from the closed state to the open state (the state shown in FIG. 10A).

  Note that the locking / unlocking of the locking means 28 is automatically performed according to the attachment / detachment operation of the paper cassette 11 without any operation by the user. Specifically, a rib 9a is formed on the frame 9 on the main body side of the inkjet printer 1 that forms a space for mounting the paper cassette 11, as shown in FIG.

  The rib 9a is provided so as to be engageable with the stopper 29, and when the paper cassette 11 is set in the ink jet printer 1, the stopper is stopped while being slid downward along the vertical direction to the butt limit. 29 is caught by the rib 9a, and then only the main body of the paper cassette 11 further advances toward the abutting position, so that the stopper 29 is switched to the state shown in FIG. Yes.

  When the paper cassette 11 is removed, the engagement state between the rib 9a and the stopper 29 is released, so that the stopper 29 returns to the locked position shown in FIG. As described above, the locking / unlocking of the locking means 28 is automatically performed according to the attachment / detachment operation of the paper cassette 11 without any operation by the user.

  As described above, since the paper cassette 11 includes the lock means 28, the cover 23 is not easily switched to the open state even when the paper cassette 11 is detached from the apparatus. 11 can reliably prevent the avalanche of the paper P from 11.

  The configuration of the lock means 28 is not limited to the above embodiment, and any configuration may be used as long as the movable tray 23 is locked in the closed state when the paper cassette 11 is detached from the printer apparatus main body. Absent. In the present embodiment, the support tray 25 and the cover portion 24 are integrally configured in the movable tray 23. However, if the movable tray 23 is configured separately, at least the cover portion (when the paper cassette is removed). What is necessary is just to lock 24 to a closed state.

〓〓〓3. Positioning means for paper cassette 11
Next, means for defining the abutting position of the paper cassette 11 will be described. As shown in FIGS. 8 and 9, a positioning damper 31 is provided at the back of the mounting direction of the paper cassette 11 in the frame 9 forming the accommodation space of the paper cassette 11. Although the positioning damper 31 is provided at a position facing both side surfaces of the paper cassette 11 in the main body of the inkjet printer 1, since it has the same configuration, the positioning damper 31 on one side will be described below.

  The positioning damper 31 has a disk shape and is provided so as to be rotatable about a rotation shaft 31c. And the recessed part 31a, 31b and the control protrusion 31d, 31e are formed in the outer peripheral part. FIG. 9 is a diagram in which the paper cassette 11 is removed from the state shown in FIG. 8 in order to illustrate the regulation protrusion 31d.

  A leaf spring 32 is fixedly provided at a position facing the outer periphery of the positioning damper 31, and the convex portion 32 a formed on the leaf spring 32 is fitted into the concave portions 31 a and 31 b formed on the positioning damper 31. Is possible.

  In a state where the paper cassette 11 is removed from the ink jet printer 1, the concave portion 31a of the positioning damper 31 and the convex portion 32 are fitted (not shown). When the paper cassette 11 is loaded from this state, the leading end corner 12d (see also FIG. 10) of the paper cassette 11 pushes the restricting protrusion 31e of the positioning damper 31 and thereby rotates the positioning damper 31. As a result, the convex portion 32a of the leaf spring 32 releases the fitting state with the concave portion 31a of the positioning damper 31, and is fitted with the concave portion 31b as shown in FIG.

  At this time, that is, when the convex portion 32a of the leaf spring 32 releases the fitting state with the concave portion 31a of the positioning damper 31, the spring force of the leaf spring 32 is exerted. But the momentum is attenuated. This prevents the members from being damaged when the paper cassette 11 is set, prevents the occurrence of collision noise, and prevents the stored paper from jumping out due to impact.

  Further, in the mounted state of the paper cassette 11, since the leading end corner portion 12d of the paper cassette 11 is sandwiched between the restricting protrusions 31d and 31e, the paper cassette 11 is also prevented from easily moving from the mounting position. Is done. When the paper cassette 11 is removed, the leading end corner portion 12d of the paper cassette 11 abuts on the restricting projection 31d and the positioning damper 31 is rotated, so that the concave portion 31b and the convex portion 32a (plate spring 32) are fitted. From this state, the concave portion 31a and the convex portion 32a are switched to a fitted state.

  When the paper cassette 11 is mounted, the restricting protrusion 31e of the positioning damper 31 defines the abutting position of the paper cassette 11. That is, the positioning damper 31 is mounted with the impact attenuation means when mounting the paper cassette. It can be shared with the subsequent positioning means, and the number of constituent members can be reduced.

〓〓〓4. Movable tray closing means, etc.
Next, means for closing the movable tray 23 will be described. In the state in which the paper cassette 11 is mounted, as described with reference to FIGS. 4 and 5, the hopper up / down operation is performed by a driving mechanism (not shown).

  Here, if the paper cassette 11 is pulled out with the hopper up (FIG. 5), there is a possibility that a problem such as the avalanche of the stored paper may occur. Therefore, the inkjet printer 1 is provided with a return roller 35 at a position facing the upper cover 24 of the movable tray 23.

  The return roller 35 is provided in the vicinity of both end positions of the upper cover 24 in the x direction, and is provided in the vicinity of the swing fulcrum 23a of the movable tray 23 in the attached state of the paper cassette 11 in the z direction. If the movable tray 23 is pulled out in the open state (the state shown in FIG. 5), the movable tray 23 is closed by the return roller 35 as shown in the change from FIG. 11 to FIG. Pushed down. As described above, the movable tray 23 is not pulled out in the open state, and it is possible to prevent problems such as the stored paper falling avalanche.

  In the relationship with the locking means 28 described above, when the paper cassette 11 is removed from the state where it is mounted on the apparatus main body, the stopper 29 is moved to the unlocked position (FIG. 10) before the movable tray 23 returns to the fully closed state. If the position is switched from (B)) to the locked position (FIG. 10A), the locking means 28 does not function normally, and the movable tray 23 cannot be locked in the closed state. Therefore, it is preferable to set the timing at which the stopper 29 is displaced (in this embodiment, it depends on the position of the rib 9a (FIG. 9) in the z direction) so that the above-mentioned problem does not occur.

  Next, another embodiment of the movable tray 23 will be described with reference to FIG. FIG. 13A shows a paper feeding state when the hopper is lowered from the hopper up state, and reference numeral P1 shows the paper being fed. The hopper down is performed after the trailing edge of the fed paper P1 has come out of the paper cassette 11, but the next and subsequent papers are fed from the predetermined amount of paper cassette 11 by the fed paper P1. If the hopper is lowered in this state, the paper is pinched between the front end of the movable tray (the front end of the cover portion 24) and the guide member 40 (position indicated by the arrow Q), and the front end of the paper may be bent. There is.

  Therefore, as another embodiment of the movable tray 23, it is conceivable to make the tip of the cover portion 24 have a movable structure. In FIG. 13, reference numeral 24 ′ denotes a cover portion according to another embodiment, and this cover portion 24 ′ is configured to be able to swing with its tip end portion 24 c free about the swing fulcrum 24 b. ing. It should be noted that the length (z-direction length) of the leading end 24c is preferably set to a length that does not hinder the return of the paper into the paper cassette when the hopper is down.

  By configuring the front end of the cover portion in this way, the front end portion 24c rotates even when the hopper is down in a state where a predetermined amount of paper is being fed from the paper cassette 11 as shown in FIG. 13B. It is possible to prevent the sheet from being sandwiched and bent between the leading end portion 24c and the guide member 40.

  In addition to the configuration shown in FIG. 13, for example, after removing the portion corresponding to the leading end portion 24c (after forming the opening), the leading end portion of the sheet is placed in the sheet cassette by the biasing means. Also by configuring, it is possible to avoid the sheet pinching described above.

  Needless to say, the embodiment described above is merely an example, and the present invention is not limited thereto. For example, in the present embodiment, the paper cassette 11 according to the present invention is applied to a vertical ink jet printer. However, the present invention is not limited to this, and includes a paper cassette that sets a paper in a vertical direction or an inclined direction when mounted on the apparatus. It can be applied to other recording devices. In the present embodiment, the present invention is applied to an ink jet printer as an example of a recording apparatus. However, the present invention can also be applied to a general 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 for ejecting a liquid corresponding to the application from a liquid ejecting head corresponding to the ink jet recording head to an ejected medium corresponding to the recording medium, and attaching 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.

DESCRIPTION OF SYMBOLS 1 Inkjet printer, 2 housing | casing, 3 operation panel, 4 paper discharge port, 5 paper discharge port cover, 6 ink cartridge, 7 ink cartridge cover, 8 interface cable connection part, 9 frame, 11 paper cassette, 12 cassette main body,
12c Paper tip support wall, 15 Upper outer cover, 15a Rotating fulcrum, 15b Long hole, 16 Upper inner cover, 18 Upper slide tray, 21 Edge guide, 21a Oscillating fulcrum, 21b Knob, 23 Movable tray, 23a Oscillating Support point, 24 cover part, 24a opening part, 25 support plate, 26 boss part, 28 locking means, 29 stopper, 29a recessed part, 31 positioning damper, 31a, 31b recessed part, 31c rotating shaft, 31d, 31e regulating protrusion, 32 plate Spring, 32a Convex portion, 35 Return roller, 37 Feed roller, 38 Drive roller, 40, 41 Guide member, 46 Transport drive roller, 47 Transport driven roller, 48 Guide member, 49 Guide roller, 51 Discharge drive roller, 52 Discharge Follower roller, 55 Carriage guide shaft, 56 Carriage guide plate, 5 The carriage, 59 ink jet recording head, P recording paper

Claims (5)

A recording medium cassette configured to be detachable from a recording apparatus for recording on a recording medium, and storing the recording medium in a vertical posture or an inclined posture in a state of being attached to the recording device,
On the downstream side in the recording medium delivery direction, at least the cover that covers the recording medium accommodation space can be switched between a closed state in which the recording medium is held in the cassette and an open state in which the recording medium can be delivered. Configured,
A lock means for locking the cover portion in the closed state when the recording medium cassette is detached from the recording apparatus;
A recording medium cassette characterized by the above. The recording medium cassette according to claim 1, wherein the lock unit releases the lock in response to an operation of mounting the recording medium cassette on the recording apparatus, and the recording medium cassette is released from the recording apparatus. It has a configuration that performs the locking according to the removal operation.
A recording medium cassette characterized by the above. 3. The recording medium cassette according to claim 1, wherein the lock means engages with a boss portion provided on the cover portion to lock the cover portion with the boss portion. A lock member that releases the lock by releasing the lock, and a lock member that displaces,
And an urging means for urging the lock member toward the lock position.
A recording medium cassette characterized by the above. A recording apparatus for recording on a recording medium,
A recording apparatus comprising the recording medium cassette according to claim 1 detachably. The recording apparatus according to claim 4, wherein the height direction dimension of the apparatus at the time of installation is configured as a vertical type in which at least one of the width direction dimension and the depth direction dimension is larger.
A recording apparatus.

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