JP2016036936A - Recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce floating of a medium delivered from conveyance means on a platen while suppressing an increase in a size of a device, and widen a print region of the medium.SOLUTION: A recording device includes: a recording head 17 for recording on a medium S; medium conveyance means 23 for conveying the medium S to a recording head; a support member 18 which supports the medium S by a plurality of rib 31, rib 32, rib 33 arranged at intervals in a direction intersecting a medium conveying direction on a lower side of the recording head 17; and medium discharge means 28 which is arranged on a downstream side of the support member 18 and discharges the medium. The support member includes a base part 30 having the rib 31, rib 32, and rib 33, and a low-position part 40 arranged on a downstream side of the rib 33 and is lower than the base part 30. A guide part 41 continuing from the low-position part 40 and guiding the medium to the medium discharge means 28 is arranged, and the guide part 41 is formed by a plurality of steps of inclinations.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a recording apparatus.

  In a recording apparatus such as an ink jet printer, a sheet is conveyed by a medium conveying unit having, for example, a conveyance driving roller and a conveyance driven roller between a recording head that performs recording on a sheet as a medium and a platen that supports the sheet below the recording head. Is configured to be conveyed. After recording on the platen, the recorded paper is discharged by a medium discharge means provided on the downstream side of the platen. As the medium discharge means, for example, discharge means having a discharge drive roller and a discharge driven roller is used.

By the way, when the conveyed paper has a curl whose leading edge is directed downward (platen side), as shown in FIG. 8, the paper S may float up on the platen 57 due to the curl. .
More specifically, as the paper S is transported downstream by the transport driving roller 51 and the transport driven roller 52, the apex position of the lift of the paper S increases.
Due to the floating of the paper S, the paper S may come into contact with the lower surface of the recording head 54 and the recording surface may become dirty. In particular, when the paper S is a so-called roll paper R in which a long paper is wound around a roll core, curling due to curling is strong and the paper tends to be lifted up.

In order to suppress such sheet floating, Patent Document 1 discloses a recording apparatus configured to correct the curl of the sheet by conveying the sheet so as to be pressed against the platen.
However, in the configuration of Patent Document 1, when the curl of the roll paper is strong, the curl cannot be completely corrected by pressing the paper against the platen, and there is a possibility of contacting the recording head.

  Further, Patent Document 2 discloses a recording apparatus that suppresses the floating of the roll paper under the recording head by lowering the paper guide surface of the paper guide member provided on the downstream side of the platen conveyance direction from the platen surface. ing.

JP 2006-142777 A JP 2006-224506 A

Here, as in Patent Document 1, when the paper recorded on the platen is discharged by the discharge means, the discharge means is usually provided at substantially the same height as the platen, and the discharge means An invitation portion (second inclined portion 218c in Patent Document 1) for inviting the sheet on the platen is provided.
For example, in a recording apparatus including the discharge unit, as in Patent Document 2, when the paper guide surface on the downstream side in the platen conveyance direction is lowered from the platen surface, the discharge is performed by the guide portion from the lowered paper guide surface. Configured to invite the paper to the means.
In this case, since the inclination angle of the invitation portion is set to an inclination that does not cause the sheet to hit and catch, the invitation portion becomes longer in the transport direction, which may increase the size of the apparatus.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to reduce the floating of the medium sent from the conveying means on the platen while suppressing the enlargement of the apparatus, and to widen the printing area of the medium.

  In order to solve the above problems, a recording apparatus according to a first aspect of the present invention includes a recording head for recording on a medium, medium conveying means for conveying the medium toward the recording head, and a lower part of the recording head. A support member that supports the medium by a plurality of ribs provided at intervals in a direction intersecting the medium conveyance direction, a medium discharge unit that is provided on the downstream side of the support member and discharges the medium; The support member includes a base portion on which the rib is provided, and a low position portion that is provided on the downstream side of the rib and is lower than the base portion, and the medium discharge means follows the low position portion. An invitation part for inviting the medium is provided, and the invitation part is formed by a plurality of inclinations, and the invitation part is provided on a first inclined part provided on the upstream side and on a downstream side of the first inclined part. Setting Together is, the angle relative to a horizontal plane in the supporting member, wherein the second inclined portion larger formed than the angle of the first inclined portion, and a, it is characterized in.

In this specification, the direction in which the medium is conveyed in the recording apparatus is referred to as “downstream”, and the opposite direction is referred to as “upstream”.
According to this aspect, since the support member includes the lower position portion lower than the base portion on the downstream side of the rib provided on the base portion, the medium is lifted as the medium is transported to the downstream side. In this case, the top of the medium can be lowered to the low position, so that the top of the medium can be lowered. Accordingly, it is possible to avoid contact of the medium with the lower surface of the recording head.

  In addition, since the invitation part that invites the medium from the low position part to the medium discharge means is formed by a plurality of inclinations, the medium can be transported at a shorter transport distance than the invitation part having a one-step inclined surface. It is possible to guide the medium from the height of the low position portion to the height of the medium discharge means while suppressing the catch of the tip.

In addition, when the medium is transported by the medium transporting means and the leading edge of the medium is guided from the low position portion by the inclination of the invitation portion, the leading edge of the medium is moved toward the downstream side as the medium is transported downstream. Since it rises upward along the inclination, the medium rises on the support member.
In this aspect, in the inclination of the first inclined portion provided on the upstream side of the invitation portion and the second inclined portion provided on the downstream side, the second inclined portion has an angle with respect to the horizontal plane in the support member. The angle of the first inclined portion is larger.
As a result, the lift of the medium per transport distance of the medium in the first inclined portion is less than the lift of the medium per transport distance of the medium in the second inclined portion. Therefore, the floating of the medium on the upstream side can be suppressed.

  A recording apparatus according to a second aspect of the present invention is characterized in that, in the first aspect, the recording apparatus includes a rotating body that rotates in contact with the medium being conveyed at a position facing the low position portion. To do.

According to this aspect, since the medium is pressed toward the low position portion of the support member by the rotating body, it is possible to suppress the medium from floating on the low position portion.
In addition, since the rotating body is provided at a position facing the low position portion, the rotating body is disposed at a position away from the rib provided on the base portion in the medium transport direction. Thus, the medium can be prevented from rising without increasing the load (back tension) acting on the medium between the rotating body and the rib.

  The recording apparatus according to a third aspect of the present invention is the recording apparatus according to the second aspect, wherein the angle change position of the plurality of stages of inclination in the invitation portion is a leading edge of the medium when the medium being conveyed and the rotating body contact each other It is characterized by being downstream of the position.

As described above, when the leading end of the medium is conveyed from the low position portion along the inclination of the invitation portion, the leading end of the medium rises along the inclination, and the medium rises.
According to this aspect, the angle change position of the plurality of steps of inclination in the invitation portion is on the downstream side of the medium tip position when the medium to be conveyed and the rotating body come into contact with each other. Before the rotating body comes into contact, the lift amount per transport distance of the medium due to the inclination of the invitation portion can be made constant.
If recording is performed before the medium and the rotating body come into contact with each other, the distance between the recording head and the medium (paper gap) changes during recording due to the floating of the medium, which may cause unevenness in the recording image quality. . Since the lift amount per conveyance distance of the medium is constant, the image quality unevenness can be made inconspicuous.

  Further, by changing the angle of the plurality of stages so as to change from a gentle slope (upstream side) to a steep slope (downstream side), the medium by the invitation portion until the rotating body comes into contact with the medium. It is possible to reduce the lift amount per conveyance distance.

  A recording apparatus according to a fourth aspect of the present invention is characterized in that, in any one of the first to third aspects, the recording apparatus includes at least one dividing portion that divides the rib in the medium conveyance direction. To do.

  According to this aspect, it is possible to discard ink at the dividing portion that divides the rib in the medium conveyance direction, and so-called borderless recording can be performed in which recording is performed on the medium without margins.

  The recording apparatus according to a fifth aspect of the present invention is the recording apparatus according to any one of the first to fourth aspects, wherein the invitation portion is provided for a transport area of a predetermined type of medium. It is characterized by this.

  According to this aspect, when a predetermined type of medium is transported, the same effects as any of the first to fifth aspects are exhibited, and the floating of the medium on the support member is effectively suppressed. be able to.

  The recording apparatus according to a sixth aspect of the present invention is characterized in that, in the fifth aspect, the predetermined type of medium is a roll-shaped medium.

  According to this aspect, when a roll-shaped medium that is easily curled by a curl is conveyed, the medium can be effectively prevented from floating on the support member.

  A recording apparatus according to a seventh aspect of the present invention is the recording apparatus according to the sixth aspect, wherein the medium discharge means includes a discharge drive roller and a discharge driven roller, and the roll-shaped medium includes the discharge drive roller and the discharge drive roller. Before being sandwiched by the discharge driven roller, recording is performed on the roll-shaped medium.

  According to an eighth aspect of the present invention, there is provided a recording apparatus according to the seventh aspect, further comprising a marginless recording mode for performing recording with no margin on the roll-shaped medium.

  According to this aspect, borderless recording can be performed on a roll-shaped medium.

1A is a perspective view illustrating an appearance of a recording apparatus according to an embodiment of the present invention, and FIG. 1B is a perspective view of the recording apparatus with a top cover opened as viewed from the back side. 1 is a side sectional view of a recording apparatus according to the present invention. FIG. 3 is an enlarged side sectional view of a main part of the recording apparatus according to the invention. 1 is a perspective view of a main part of a recording apparatus according to the present invention. FIG. 3 is a plan view of a main part of the recording apparatus according to the invention. FIG. 3 is a side view of a main part of the recording apparatus according to the invention. The figure explaining the inclination of an invitation part. The principal part side view of the conventional recording device.

  Hereinafter, a recording apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings. The present invention is not limited by these.

[Example 1]
First, an outline of a recording apparatus 1 according to an embodiment of the present invention will be described. As an example of the recording apparatus 1 of the present embodiment, an ink jet printer is taken as an example.
1A is a perspective view illustrating an appearance of a recording apparatus according to an embodiment of the present invention, and FIG. 1B is a perspective view of the recording apparatus with a top cover opened as viewed from the back side. It is. FIG. 2 is a side sectional view of the recording apparatus according to the present invention. FIG. 3 is an enlarged side sectional view of a main part of the recording apparatus according to the present invention. FIG. 4 is a perspective view of a main part of the recording apparatus according to the present invention. FIG. 5 is a plan view of an essential part of the recording apparatus according to the present invention. FIG. 6 is a side view of the main part of the recording apparatus according to the present invention. FIG. 7 is a diagram for explaining the inclination of the invitation portion. FIG. 8 is a side view of a main part of a conventional recording apparatus.

As shown in FIG. 1, the recording apparatus 1 includes a main body 2 of the recording apparatus 1, an upper surface cover 3 that opens and closes an upper surface portion 6 (see FIG. 2) of the main body 2, and a front surface (+ Y direction side) of the main body 2 in FIG. The external appearance is constituted by the paper discharge cover 4 that opens and closes to the side.
In the XYZ coordinate system shown in each figure, the X direction is the scanning direction of the recording head, and the Y direction is the depth direction of the recording apparatus. The Z direction is the direction of gravity and indicates the device height direction. Further, the + Y direction side is the front side of the apparatus, and the −Y direction side is the back side of the apparatus. Also, the right side when viewed from the front side of the apparatus is the + X direction, and the left side is the −X direction. Further, the + Z direction is the upper side of the apparatus (including the upper and upper surfaces), and the −Z direction side is the lower side of the apparatus (including the lower and lower surfaces).

  The upper surface portion 6 is provided with a medium setting portion 7 for inserting a cut sheet P as a medium in the recording apparatus 1 (see FIG. 2). The upper surface cover 3 is a cover that opens and closes the upper surface portion 6 including the medium setting portion 7, and is configured to support the cut sheet P set on the medium setting portion 7 with the support surface 12 in the open state.

  As shown in FIG. 2, the recording apparatus 1 according to the first embodiment is configured to perform recording on a roll paper R in addition to recording on a sheet paper P as a medium. The roll paper R is sent from the roll paper unit 5 detachably attached to the back side of the main body 2 of the apparatus 1, that is, the upstream side (−Y side) of the medium setting unit 7 in the medium conveyance direction, to the medium setting unit 7. Recording on the paper R can be performed.

  A roll paper R wound around a roll shaft is stored in the roll paper unit 5. The leading end of the roll paper R sent out from the roll paper unit 5 is inserted into the roll paper insertion port 10 provided on the downstream end side of the upper cover 3 from the back surface 9 side of the support surface 12 of the upper cover 3. The leading end of the roll paper R is configured to pass out between the upper cover 3 and the main body 2 to the support surface 12 side and set on the hopper 13.

Next, the outline of the internal structure of the recording apparatus 1 will be described with reference to FIG. Note that FIG. 2 shows a conveyance path for the cut paper P and the roll paper R. The conveyance path of the roll paper R and the conveyance path of the cut sheet P are configured to merge at, for example, a merge position 25.
In the recording apparatus 1, the cut paper P and the roll paper R as media are configured to be conveyed in the + Y direction in FIG. In the following, the direction in which the medium is conveyed in the recording apparatus 1 may be referred to as “downstream”, and the opposite direction may be referred to as “upstream”.

  Inside the main body 2, a carriage 16 having a recording head 17 that performs recording by discharging liquid onto a medium such as a cut sheet P or roll paper R intersects the medium conveyance direction (+ Y direction) (X It is provided to reciprocate in the axial direction. The carriage 16 is mounted with a liquid container 20 for supplying a liquid (for example, ink) for recording to the recording head 17.

The sheet paper P or roll paper R (hereinafter collectively referred to as paper S) is fed by the paper feed roller 14 toward the downstream side in the transport direction.
Further, the sheet S fed from the upstream side in the transport direction is recorded below the recording head 17 (on the −Z direction side) in a state where the sheet S is nipped by the medium transport unit 23 including the transport driving roller 21 and the transport driven roller 22. Transported to position.
Below the recording head 17, a support member 18 that faces the recording head 17 and defines a sheet gap between the liquid ejection surface of the recording head 17 and the sheet S is provided. Recording is performed between the recording head 17 and the support member 18 by ejecting liquid (ink) onto the paper S from the recording head 17. The configuration of the support member 18 will be described in detail later.

On the downstream side of the recording head 17 in the conveyance direction, a medium discharge unit 28 including a discharge driving roller 26 and a discharge driven roller 27 is provided.
A rotating body 29 is provided between the recording head 17 and the medium discharge means 28. The rotator 29 is provided on the conveyance path of the sheet S from the recording head 17 to the medium discharge unit 28 so as to be driven and rotated in contact with the recording surface of the sheet S, thereby lifting the sheet S from the support member 18. This prevents the sheet S and the recording head 17 from maintaining a constant distance (details will be described later).
The sheet S after recording is sent to the downstream side by the medium discharge means 28 and discharged from the medium discharge portion 19, and is placed on the open discharge cover 4.

In addition, the upper surface 6 of the main body 2 is provided with an operation panel (not shown) on which operation buttons are arranged in addition to a liquid crystal display 8 (FIG. 2) for displaying various information such as menus and errors.
Further, the upper surface cover 3 that supports the cut sheet P on the support surface 12 in an open state is configured such that the support surface 12 follows the inclination of the placement surface 15 of the hopper 13.

  Next, the support member 18 and its surrounding components will be described. As shown in FIGS. 3 to 5, the support member 18 includes a base portion 30 on the upstream side, and the base portion 30 has a plurality of ribs 31 provided at intervals in a direction intersecting the medium conveyance direction (X-axis direction). (See FIG. 4). Further, on the downstream side of each rib 31, a rib 32 and a rib 33 are provided along the transport direction (+ Y direction). The sheet S is supported from below by the rib 31, the rib 32, and the rib 33.

As shown in FIG. 3 and FIG. 4, a dividing portion 34 that divides the rib 31 and the rib 32 is extended between the rib 31 and the rib 32 in the X-axis direction. Similarly, a dividing portion 35 for dividing both ribs extends in the X-axis direction.
The dividing part 34 and the dividing part 35 are for discarding ink ejected to a part off the leading edge or the trailing edge of the sheet S, respectively. For example, the ink is ejected in a state where the leading edge of the sheet S is disposed above the dividing portion 34 or the dividing portion 35. As a result, borderless recording is performed on the leading edge of the sheet S, and ink that has been removed from the leading edge of the sheet S is discarded in the dividing section 34 or the dividing section 35. Similarly, borderless recording can be performed on the lower end of the paper S.

The rib 31, rib 32, and rib 33 are preferably configured to regularly and alternately provide two types of ribs having different rib heights in the X-axis direction. Thus, a regular wavy state (cockling) can be formed on the paper S, and the recording quality can be improved.
“Regularly arranging ribs alternately” is not limited to the case where two types of ribs having different rib heights (a high rib and a low rib) are alternately provided one by one. The case where two low ribs are alternately provided, that is, the case where every two ribs are arranged alternately, the case where one high rib and two low ribs are provided alternately, and the like are included.

Further, the support member 18 includes a low position portion 40 located below the base portion 30 (−Z direction) on the downstream side of the rib 33. In addition, the level | step difference of the base 30 and the low position part 40 is set to about 1 mm in a present Example.
Further, following the low position portion 40, an invitation portion 41 for inviting the paper S to the medium discharge means 28 is provided.

The invitation portion 41 is formed with a plurality of steps of inclination, and more specifically, the invitation portion 41 according to the present embodiment includes a first inclination portion 42 provided on the upstream side as shown in FIG. The second inclined portion 43 provided on the downstream side of the first inclined portion 42 forms a two-step inclination. In the present embodiment, the second inclined portion 43 is formed such that the angle of the base portion 30 of the support member 18 with respect to the horizontal plane (XY plane) is larger than the angle of the first inclined portion 42. That is, the second inclined portion 43 is formed at a steeper angle than the first inclined portion 42.
For example, when the step between the base portion 30 and the low position portion 40 is about 1 mm as described above, the inclination angle of the first inclined portion 42 is about 10 ° and the inclination angle of the second inclined portion 43 is about 30 °. Can be set to In the following description, the inclination angle is an inclination angle with respect to the horizontal plane (XY plane) of the base portion 30 of the support member 18 and is inclined with respect to the lower surface (head surface) of the recording head 17 provided substantially parallel to the base portion 30. It is also an angle.
In addition, the support member 18 can integrally form the base 30, the rib 31, the rib 32, the rib 33, the low position portion 40, and the invitation portion 41 with a resin material.

  Since the support member 18 is configured as described above, the following effects can be obtained.

  That is, since the support member 18 includes the low position portion 40 lower than the base portion 30 on the downstream side of the rib 33 provided on the base portion 30, the paper S is lifted as the paper S is conveyed downstream. In this case, when the leading edge of the sheet S is lowered to the low position portion 40, the top of the sheet S can be lowered. Thus, contact of the paper S with the recording head 17 can be avoided.

Here, further description will be made in comparison with the prior art shown in FIG.
As described in the background art described above, in FIG. 8, the sheet S having a strong curl such as the roll sheet R gradually increases as it is conveyed downstream by the conveyance driving roller 51 and the conveyance driven roller 52. . That is, the size of the lifting of the paper S is expressed as e <code f <code g. Symbols e, f, and g respectively indicate the posture (curl state) of the sheet at a predetermined conveyance time.
In particular, when the sheet S comes into contact with the rotating body 56 before the sheet S comes into contact with the rotating body 56 and rises to a height exceeding the position of the lower surface of the recording head 54 as indicated by reference numeral f, the sheet S contacts the recording head 54. The recording surface may become dirty.

  When the sheet S comes into contact with the rotating body 56 provided on the downstream side of the recording head 54 and above the platen 57 as a support member, the sheet S is pressed by the rotating body 56 and the floating of the sheet S is reduced (dotted line). When the sheet S is further conveyed and guided to the invitation portion 53 and pinched between the discharge driving roller 54 and the discharge driven roller 55, the lifting of the sheet S is substantially suppressed (shown by a solid line). State of sheet S).

Increasing the position of the lower surface of the recording head 54 reduces the possibility of contact with the paper S, but it becomes impossible to set a paper gap (interval between the recording head 54 and the paper) for obtaining an appropriate recording quality. It causes an increase in size in the vertical direction.
Therefore, conventionally, for a paper S having a strong curl such as the roll paper R, the recording is performed after the paper S is sandwiched between the discharge driving roller 54 and the discharge driven roller 55 and the lift is suppressed. I was going. For this reason, borderless recording in which recording is performed when the leading edge of the sheet S is below the recording head 54 cannot be performed on a sheet with strong curl.

  In the support member 18 of the present embodiment, as shown in FIG. 6, when the paper S is being transported on the base 30, the lift increases as the paper S is transported downstream (reference characters a and b). When the leading edge of the sheet S is lowered to the low position portion 40 (in the state indicated by reference sign c), the top of the sheet S can be lowered, so that even before the sheet S contacts the rotating body 29, Contact can be avoided.

As a result, recording can be performed before the paper S is nipped between the discharge driving roller 26 and the discharge driven roller 27. Therefore, recording can be started when the leading edge of the sheet S is below the recording head 17. That is, borderless recording can be executed.
In this embodiment, the control unit (not shown) of the recording apparatus 1 has a marginless recording mode for recording on the roll paper R without margins, and can perform marginless recording on the roll paper R. It is configured.

In addition, the invitation portion 41 that invites the sheet S from the low position portion 40 to the medium discharge means 28 is formed by two-stage inclinations of the first inclined portion 42 and the second inclined portion 43, so that the invitation portion It is possible to guide the sheet S from the height of the low position portion 40 to the height of the medium discharge means 28 with a transport distance shorter than that in the case where 41 is formed with a one-step inclined surface.
For example, as shown in FIG. 7, when the low position portion 40 is at the height of Z0 and the medium discharge means 28 is at the height of Z1, for example, the height D from Z0 to Z1 is a steep angle (θ1). When the medium is invited by the inclination [FIG. 7A], the length L1 in the Y direction of the inclination is short, but the sheet S may hit and be caught in the middle of the inclination.

On the other hand, when the medium is invited by an inclination of a gentle angle (θ2) that does not cause the sheet S to be caught as shown in FIG. 7B, the possibility that the sheet S is caught during the inclination is reduced, but the length of the inclination in the Y direction is reduced. The length L2 becomes longer, leading to an increase in the size of the apparatus in the Y-axis direction.
However, as shown in FIG. 7C, the inclination of the invitation part 41 is made into two stages, for example, an inclination of the angle θ2 (first inclination part 42) and an inclination of the angle θ1 (second inclination part 43). The length L3 in the Y direction of the inclination is shorter than that in the case of FIG. 7B, and the enlargement of the apparatus in the Y axis direction can be suppressed.
Further, by making the height D2 (the height of the second inclined portion 43) in FIG. 7C smaller than the height D1 (the height at which the paper S is caught) in FIG. The possibility of being caught in the middle of the inclination is reduced, and it is possible to reliably invite the sheet S from the position Z0 of the low position portion 40 to the position Z1 of the medium discharge means 28.

Further, when the sheet S is conveyed by the medium conveying unit 23 and the leading end of the sheet S is guided from the low position portion 40 by the invitation unit 41, the leading end of the sheet S is changed as the sheet S is conveyed downstream. Since the sheet S moves upward along the inclination, the sheet S is lifted up.
The slope of the second inclined portion 43 provided on the downstream side is formed on the steep slope rather than the slope of the first inclined portion 42 provided on the upstream side of the invitation portion 41. The lift of the paper S per transport distance is less than the lift of the paper S per transport distance of the paper S in the second inclined portion 43. Therefore, it is possible to suppress the sheet S from floating more upstream.

  Further, it is preferable that the rotating body 29 described above is provided so as to be driven and rotated in contact with the sheet S at a position facing the low position portion 40. By providing the rotator 29 above the low position portion 40, the rotator 29 is disposed at a position away from the rib provided on the base portion 30, particularly the most downstream rib 33, in the medium transport direction. Become. Thus, the lifting of the sheet S can be suppressed without increasing the load (back tension) acting on the sheet S between the rotating body 29 and the rib 33.

  Further, the angle changing position 44 (see FIG. 6) of the first inclined portion 42 and the second inclined portion 43 in the invitation portion 41 is based on the medium leading end position when the sheet S to be conveyed and the rotating body 29 contact each other. Is also preferably downstream.

As described above, when the leading edge of the sheet S is conveyed from the low position portion 40 along the inclination of the invitation portion 41, the leading edge of the sheet S rises along the inclination of the invitation portion 41, and the sheet S rises. .
According to this aspect, since the angle changing position 44 in the invitation portion 41 is on the downstream side of the front end position of the medium when the conveyed paper S and the rotating body 29 are in contact, the paper S and the rotating body 29 are in contact. It is possible to make the floating amount per conveyance distance of the paper S due to the inclination of the invitation portion 41 in the front constant.

  If recording is performed before the sheet S and the rotating body 29 are in contact with each other, the distance between the recording head 17 and the sheet S (sheet gap) changes during recording due to the floating of the sheet S. There is. Since the lifting amount per conveyance distance of the paper S is constant, the image quality unevenness can be made inconspicuous.

  In particular, as in this embodiment, the second inclined portion 43 is formed on a steeper slope than the first inclined portion 42, that is, the angle is changed so that the upstream side is a gentle slope and the downstream side is a steep slope. As a result, before the rotating body 29 comes into contact with the paper S, the lift amount per transport distance of the paper S by the invitation portion 41 can be suppressed.

  The invitation unit 41 can be provided in the conveyance area of the paper S that can be used in the recording apparatus 1, but may be provided only in the conveyance area of the predetermined type of paper S. For example, by providing the invitation part 41 in the conveyance area of the roll paper R, it is possible to effectively suppress the floating on the support member 18 with respect to the roll paper R that is easily curled by the curl.

  In the present embodiment, in the invitation part 41 constituted by two inclinations, the case where the second inclination part 43 is formed on a steeper slope than the first inclination part 42 has been described. In the case of forming with a plurality of three or more slopes, it is also possible to provide at least one upstream slope that is steeper than the downstream slope.

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

1 recording device, 2 main body, 3 top cover, 4 paper discharge cover,
5 roll paper unit, 6 upper surface part, 7 medium setting part,
8 liquid crystal display, 9 back, 10 roll paper insertion slot,
12 support surface, 13 hopper, 14 paper feed roller, 15 mounting surface,
16 carriage, 17 recording head, 18 support member,
19 Medium discharge part, 20 Liquid container,
21 transport drive roller, 22 transport driven roller, 23 medium transport means,
26 discharge drive roller, 27 discharge driven roller, 28 medium discharge means,
29 Rotating body, 30 base, 31 rib, 32 rib, 33 rib,
34 parting part, 35 parting part, 40 low position part, 41 invitation part,
42 first inclined portion, 43 second inclined portion,
P cut paper, R roll paper, S paper,

Claims (8)

A recording head for recording on a medium;
Medium conveying means for conveying the medium toward the recording head;
On the lower side of the recording head, a support member that supports the medium by a plurality of ribs provided at intervals in a direction intersecting the medium conveyance direction;
Medium discharge means provided on the downstream side of the support member and discharging the medium;
The support member includes a base portion on which the rib is provided, and a low position portion that is provided on the downstream side of the rib and is lower than the base portion,
An invitation part for inviting the medium to the medium discharge means is provided following the low position part, and the invitation part is formed by a plurality of slopes,
The invitation portion is provided on the upstream side of the first inclined portion and on the downstream side of the first inclined portion, and the angle of the support member with respect to the horizontal plane is larger than the angle of the first inclined portion. A second inclined portion formed,
A recording apparatus. The recording apparatus according to claim 1,
A rotating body that rotates in contact with the medium to be conveyed at a position facing the low position portion;
A recording apparatus. The recording apparatus according to claim 2,
The angle change position of the plurality of steps of inclination in the invitation portion is on the downstream side of the medium tip position when the medium to be conveyed and the rotating body are in contact with each other.
A recording apparatus. In the recording apparatus according to any one of claims 1 to 3,
Comprising at least one dividing portion for dividing the rib in the medium conveying direction;
A recording apparatus. In the recording device according to any one of claims 1 to 4,
The invitation portion is provided for a transport area of a predetermined type of medium.
A recording apparatus. The recording apparatus according to claim 5,
The predetermined type of medium is a roll medium;
A recording apparatus. The recording apparatus according to claim 6,
The medium discharge means has a discharge drive roller and a discharge driven roller,
Before the roll medium is sandwiched between the discharge drive roller and the discharge driven roller, recording is performed on the roll medium.
A recording apparatus. The recording apparatus according to claim 7,
Provided with a marginless recording mode for recording on the roll-shaped medium without margins,
A recording apparatus.

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