JP2006142625A - Inkjet recording device and cap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a waste liquid from leaking from a cap regardless of the posture, upright or horizontal posture, of a device. <P>SOLUTION: This inkjet recording device comprises the following components: a recording head which discharges an ink vertically downward, in a case a device main body is horizontally positioned and discharges the ink horizontally when the device main body is positioned horizontally to impact the ink to a recording object/record data, a cap which is arranged opposite to a direction where the ink is discharged from the recording head, and has a cap bottom surface serving as a bottom surface, when set in a horizontal position and also, a cap side wall which rises toward the recording head from the cap bottom surface and forms a recessed part between the cap bottom surface and the recording head, and further, receives the ink discharged from the recording head, as the waste liquid, in the recessed part, and a waste liquid reservoir part which is arranged in a position to be the bottom surface of the cap side wall, when set in an upright position and reserves the waste liquid inside the recessed part, when set in the upright position. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an ink jet recording apparatus. In particular, the present invention relates to an ink jet recording apparatus that can be placed both vertically and horizontally.

2. Description of the Related Art Conventionally, in a recording apparatus, an outer shape that can be placed on a plane such as a desk using two different surfaces as a bottom surface is known (for example, Patent Document 1). When the recording device is an ink jet recording device, the ink jet recording device discharges ink from a recording head that scans the recording material while feeding the recording material, and records on the recording material. Do. In addition, the ink jet recording apparatus ejects ink toward a cap disposed at a position facing the recording head separately from ejection for recording by cleaning or flushing the recording head, and the cap is ejected. Receive ink as waste.
JP-A-11-314432

  The cap in the above-described ink jet recording apparatus has a cap side wall that forms a concave portion with the bottom surface of the surface facing the recording head. However, when the ink jet recording apparatus is placed on a flat surface with two different surfaces as bottom surfaces, the bottom surface of the cap is inclined or rises in the vertical direction in any placement, so that There was a problem that the waste liquid leaked out of the cap along the side wall of the cap.

  In order to solve the above-described problem, in the first embodiment of the present invention, an ink jet recording apparatus, which is a main body vertical bottom surface that is a bottom surface when placed vertically and a main body horizontal surface that is a bottom surface when horizontally placed. One of the apparatus main body having a bottom surface and the case where the apparatus main body is placed vertically or horizontally, ink is ejected vertically downward, and the case where the apparatus main body is placed vertically or horizontally On the other side of the recording head, the ink is ejected in the horizontal direction to land the recording material so that the ink is landed on the recording head, and the recording head is arranged to face the direction of ink ejection from the recording head. A cap bottom surface which is a bottom surface of one of them, and a cap side wall which rises from the cap bottom surface toward the recording head and forms a recess between the cap bottom surface and the recess. A cap that receives ink discharged from the recording head as waste liquid, and a waste liquid reservoir portion that is disposed at a position that is the bottom surface of the cap side wall in the other of the vertical placement and the horizontal placement and that collects the waste liquid in the recess. . Thereby, when the ink jet recording apparatus is placed with the cap bottom face standing vertically, waste liquid in the cap can be prevented from leaking out of the cap.

  In the above-described ink jet recording apparatus, the waste liquid reservoir may have a slope that becomes lower as the distance from the recording head increases in the vertically or horizontally placed state on the cap side wall that is the bottom surface in the other of the vertically or horizontally placed state. Good. In the ink jet recording apparatus, the waste liquid reservoir may have a damming wall that rises from the cap side wall, which is the bottom surface in the other of the vertical placement and the horizontal placement, toward the recess. The waste liquid in the cap can be prevented from leaking out of the cap with a simple configuration.

  The ink jet recording apparatus further includes a discharge unit that discharges the waste liquid in the recess to the outside of the cap in the vicinity of the cap bottom surface and the cap side wall that is the bottom surface in the other of the vertical placement and the horizontal placement. Also good. Thereby, it can prevent more reliably that the waste liquid in a cap leaks.

  According to a second aspect of the present invention, there is provided a cap for receiving ink discharged from a recording head of an ink jet recording apparatus as a waste liquid, and a cap bottom surface disposed opposite to the direction of ink discharge from the recording head; A cap side wall that rises from the bottom surface of the cap toward the recording head and forms a recess between the bottom surface of the cap and a position that becomes the bottom surface of the cap side wall in a posture in which the cap bottom surface is vertically set up. A waste liquid reservoir for storing the waste liquid in the concave portion in a vertical position. Thereby, the effect similar to the 1st form can be acquired.

  The above summary of the invention does not enumerate all the necessary features of the present invention, and sub-combinations of these feature groups can also be the invention.

  Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the invention according to the scope of claims, and all combinations of features described in the embodiments are included. It is not necessarily essential for the solution of the invention.

  FIG. 1 shows a state where an ink jet recording apparatus 30 according to an embodiment of the present invention is placed horizontally. The ink jet recording apparatus 30 shown in FIG. 1 shows a standby state in which it is placed on a stable placement surface 10 such as a desk or table. The ink jet recording apparatus 30 includes a housing 32 having a substantially rectangular parallelepiped shape and a main body cover 40 that covers three surfaces of the housing 32. Here, the main body cover 40 and the housing 32 are examples of the apparatus main body in the present invention. With the housing 32 and the main body cover 40, the ink jet recording apparatus 30 has the outline of a hard cover book. The main body horizontal bottom surface 44 corresponding to the back cover in the main body cover 40 is wider than the main body vertical bottom surface 42 corresponding to the back cover in the main body cover 40.

  An arrow A shown in FIG. 1 indicates a direction in which a recording head 50 to be described later scans the recording material 100. Hereinafter, placing the ink jet recording apparatus 30 with the arrow A in the horizontal direction and the wider surface of the main body cover 40 as the bottom surface is referred to as “horizontal placement”. That is, when the ink jet recording apparatus 30 is placed horizontally, the main body cover 40 is placed with the main body horizontal bottom surface 44 corresponding to the back cover of the book as the bottom surface. In addition, when the ink jet recording apparatus 30 is placed horizontally, a paper feed tray 140 and a bent portion 48 disposed on one side of the paper feed tray 140 are provided on the upper surface of the main body cover 40 corresponding to the front cover of the book. Arranged. The paper feed tray 140 is bent at the bent portion 48.

  FIG. 2 shows a use state when the ink jet recording apparatus 30 is placed horizontally. As shown in FIG. 2, the housing 32 of the ink jet recording apparatus 30 includes a paper feed port 142 disposed on a surface facing the main body horizontal bottom surface 44 and a paper discharge port disposed on a surface facing the spine of the book. 174. In the use state of the ink jet recording apparatus 30, the paper feed tray 140 is bent upward at the bent portion 48. As a result, the paper feed port 142 provided in the housing 32 is exposed.

  FIG. 3 shows a use state when the ink jet recording apparatus 30 is placed vertically. As shown in FIG. 3, the ink jet recording apparatus 30 is placed on the placement surface 10 with a surface other than the main body lateral bottom surface 44 as a bottom surface. The ink jet recording apparatus 30 shown in FIG. 3 is placed on the main body cover 40 with the main body vertical bottom surface 42 corresponding to the spine of the book as the bottom surface. Hereinafter, placing the ink jet recording apparatus 30 with the above-mentioned arrow A in the horizontal direction and the narrower surface of the main body cover 40 as the bottom surface is referred to as “vertical placement”. As a result, the main body cover 40 has a main body horizontal bottom surface 44 that becomes a bottom surface when horizontally placed and a main body vertical bottom surface 42 that becomes a bottom surface when vertically placed. In the ink jet recording apparatus 30 shown in FIGS. 1 to 3, the main body vertical bottom surface 42 and the main body horizontal bottom surface 44 are orthogonal to each other. This corresponds to a state rotated 90 degrees.

  FIG. 4 is a cross-sectional view schematically showing a cross section of the ink jet recording apparatus 30 taken along a plane perpendicular to the arrow A in FIG. 1. FIG. 5 shows the case 32 and the main body cover 40 removed from the ink jet recording apparatus 30. 2 is a perspective view schematically showing the inside of the ink jet recording apparatus 30. FIG. Here, FIG.4 and FIG.5 has shown the horizontal state shown in FIG. As shown in FIGS. 4 and 5, the ink jet recording apparatus 30 includes a frame 110 and a recording object 100 inserted from a paper feed port 142 in addition to the above-described casing 32 and main body cover 40. A paper feeding unit 141 that feeds paper to the inside, a recording unit 160 that performs recording by discharging ink to the fed recording material 100, an ink supply unit 130 that supplies ink to the recording unit 160, and a recording unit 160 A waste liquid part 135 that collects the ink discharged from the recording medium as a waste liquid, and a paper discharge part 170 that discharges the recorded object 100 to the outside of the ink jet recording apparatus 30.

  The paper feed unit 141 includes a paper feed guide 150 that guides the recording material 100 from the paper feed port 142 to the recording unit 160, and a pair of paper feed driving rollers 144 and a paper feed driven roller disposed in the vicinity of the paper feed port 142. 146. The paper feed guide 150 is a plate-like member that curves from the paper feed port 142 toward the lower side of the recording head 50, and is supported by the frame 110. The paper feed driving roller 144 is rotatably supported by the 110. Further, the paper feed driving roller 144 has a substantially D shape in a cross section perpendicular to the rotation axis, and rotates around the rotation axis by a driving force from a motor (not shown). The paper feed driven roller 146 has a gap with the paper feed drive roller 144 and is rotatably supported by the frame 110.

  The recording unit 160 includes a recording head 50 that discharges ink to the recording material 100, a guide shaft 52 that is supported by the frame 110 and penetrates the recording head 50, an endless timing belt 54 that is gripped by the recording head 50, A timing motor 55 that rotationally drives the timing belt 54 and a leg 56 that slides in contact with a part of the paper discharge unit 170 are provided. The recording unit 160 further includes a platen 161 arranged to face the ink ejection direction in the recording head 50. The platen 161 extends parallel to the guide shaft 52 and is rotatably supported by the frame 110. The platen 161 is driven in synchronization with the paper feed drive roller 144 by a motor (not shown) that drives the paper feed drive roller 144.

  The ink supply unit 130 removably connects the ink cartridge 120 containing ink therein, and supplies the ink stored in the ink cartridge 120 connected to the cartridge connection unit 131 to the recording head 50. And a supply tube 132.

  The paper discharge unit 170 includes a pair of plate-shaped discharge guide lower 180 and paper discharge guide upper 182 that guide the recording material 100 from the position facing the recording head 50 to the paper discharge port 174, and the paper discharge guide lower 180 side. And a paper discharge driven roller 172 disposed to face the paper discharge drive roller 171. The paper discharge driving roller 171 is rotatably supported by the frame 110. Further, the paper discharge drive roller 171 is driven in synchronization with the paper feed drive roller 144 by a motor (not shown) that drives the paper feed drive roller 144. The paper discharge driven roller 172 has a gap between the paper discharge driving roller 171 and is rotatably supported by the frame 110.

  The waste liquid part 135 includes a cap 60 disposed outside the platen 161 in the longitudinal direction of the platen 161, a waste liquid tube 70 connected to the cap 60, a waste liquid pump 72 that holds a part of the waste liquid tube 70, a waste liquid A waste liquid tank 80 connected to the tube 70;

  In the above configuration, the ink jet recording apparatus 30 performs recording on the recording material 100 as follows. First, when the recording material 100 is inserted from the paper supply port 142, the paper supply driving roller 144 and the paper supply driven roller 146 sandwich the recording material 100. In this state, the paper feed driving roller 144 is driven to rotate, whereby the paper feed driven roller 146 is rotated with the paper feed drive roller 144. As a result, the paper feed driving roller 144 and the paper feed port 142 feed the recording material 100 along the paper feed guide 150 in the direction of arrow B in the figure.

  When the recording material 100 is fed between the recording head 50 and the platen 161, the timing motor 55 rotationally drives the timing belt 54, whereby the timing belt 54 causes the recording head 50 to move in the longitudinal direction of the main body vertical bottom surface 42. Reciprocate along. As a result, the recording head 50 records on the recording material 100 by ejecting ink onto the recording material 100 while reciprocating on the recording material 100. After the recording head 50 reciprocates once with respect to the recording material 100, the paper feed driving roller 144 and the paper feeding driven roller 146 feed the recording material 100 by a very small amount. Recording is further performed on the recording material 100 by ejecting ink onto the recording material 100 while reciprocating on the recording material 100. By repeating this, the recording head 50 can perform recording by ejecting ink over one surface of the recording material 100.

  When the paper feed driving roller 144 and the paper feed driven roller 146 further feed the recording material 100, the recording material 100 reaches the gap between the paper ejection driving roller 171 and the paper ejection driven roller 172. The paper discharge driving roller 171 and the paper discharge driven roller 172 sandwich the recording material 100 in this gap. In this state, the paper discharge driving roller 171 is driven to rotate, whereby the paper discharge driven roller 172 rotates with the paper discharge drive roller 171. As a result, the paper discharge driving roller 171 and the paper discharge driven roller 172 convey the recording material 100 between the paper discharge guide lower part 180 and the paper discharge guide upper part 182 and from the paper discharge port 174 to the outside of the ink jet recording apparatus 30. To discharge.

  Note that the direction in which ink is ejected from the recording head 50 is fixed with respect to the ink jet recording apparatus 30, so the mounting surface depends on whether the ink jet recording apparatus 30 is placed vertically or horizontally. When 10 is a reference plane, the direction in which ink is ejected from the recording head 50 is different. In the example shown in FIG. 4, the recording head 50 ejects ink vertically downward when it is placed horizontally with the main body horizontal bottom surface 44 as the bottom surface. At this time, in the case where the main body vertical bottom surface 42 is used as the bottom surface, the ink jet recording apparatus 30 is rotated 90 degrees clockwise in FIG. 4, and the recording head 50 ejects ink in the horizontal direction.

  When the ink jet recording apparatus 30 is in a standby state, the recording head 50 is guided by the guide shaft 52 and retracts to the outside in the longitudinal direction of the platen 161 (right side of the platen 161 in FIG. 5). With the recording head 50 at this position, the cap 60 covers the lower surface of the recording head 50. Thereby, when the recording head 50 is not used, the ink solvent is prevented from evaporating and the ink is clogged in the recording head 50. Even when the ink jet recording apparatus 30 is in use, for the purpose of cleaning ink from the recording head 50 or flushing ink, the recording head 50 is outside the longitudinal direction of the platen 161 and is attached to the cap 60. Move to the opposite position. In the ink cleaning, the cap 60 covers the lower surface of the recording head 50. In this state, the waste liquid pump 72 sucks the waste liquid tube 70 to forcibly eject ink from the recording head 50 to the cap 60. Further, in the ink flushing, a signal different from the print signal is given to the recording head 50, and the recording head 50 discharges the ink, thereby adjusting the ink meniscus in the recording head 50. The cap 60 receives the ink discharged in the cleaning and flushing as waste liquid, and is stored in the waste liquid tank 80 through the waste liquid tube 70.

  FIG. 6 shows a perspective view of the cap 60. The cap 60 includes a cap main body 61 that receives the ink discharged from the recording head 50 as a waste liquid, and a wiper 69 that is disposed closer to the platen 161 than the cap main body 61. The cap body 61 is arranged facing the direction in which ink is ejected from the recording head 50, and the cap bottom surface 64 that becomes the bottom surface in the horizontal position, and rises from the cap bottom surface 64 toward the recording head 50, A cap sidewall 66 forming a recess therebetween. The cap 60 further includes a discharge portion 65 that opens at substantially the center of the cap bottom surface 64, the other is connected to the waste liquid tube 70, and allows the ink on the cap bottom surface 64 to flow to the waste liquid tube 70. As a result, the cap 60 receives the ink discharged from the recording head 50 in the recess as waste liquid, and flows it to the waste liquid tube 70 via the discharge part 65. The main body portion of the cap main body 61 is integrally molded with, for example, a resin having high resistance to ink. Further, the cap side wall 66 is molded from, for example, rubber having high resistance to ink and is assembled to the cap body 61.

  Fig.7 (a) is sectional drawing which shows the cap main body 61 about the cross section parallel to the cross section shown in FIG. FIG.7 (b) is sectional drawing which shows the state in which the cap main body 61 shown to Fig.7 (a) was installed vertically. As shown in FIG. 7B, in the vertical installation, the cap bottom surface 64 rises vertically, and the side wall bottom surface portion 67 of the cap side wall 66 becomes the bottom surface. The cap 60 is further disposed on the side wall bottom surface portion 67 and further includes a waste liquid storage portion 68 for storing the waste liquid in the recess. Thus, when the ink jet recording apparatus 30 is placed with the cap bottom surface 64 standing vertically, the waste liquid in the cap 60 is stored in the waste liquid storage portion 68, thereby preventing leakage from the cap 60. Can do.

  In the embodiment shown in FIGS. 7A and 7B, the waste liquid reservoir 68 has a damming portion 68 a that rises from the side wall bottom surface portion 67 toward the recess. Thereby, in the case of vertical installation, the waste liquid in the cap 60 can be prevented from leaking out of the cap 60 with a simple configuration. The damming portion 68a is two-color molded together with the cap side wall 66 using, for example, a resin having high resistance to ink. Instead of this, the damming portion 68 a may be molded separately from the cap side wall 66 by the resin and bonded to the cap side wall 66.

  As described above, according to the embodiment shown in FIGS. 1 to 7B, when the ink jet recording apparatus 30 is placed horizontally, the concave portion of the cap 60 holds the ink, and the ink jet recording apparatus 30 is vertical. When placed, the waste liquid in the cap 60 is stored in the waste liquid reservoir 68, so that it can be prevented from leaking out of the cap 60 in any way.

  FIG. 8 is a cross-sectional view showing another example of the cap 60. In FIG. 8, the same components as those in FIG. 7B are denoted by the same reference numerals, and description thereof is omitted. FIG. 8 shows the posture of the cap 60 in a state where the ink jet recording apparatus 30 is placed vertically as in FIG. 7B.

  The waste liquid reservoir 68 of the cap 60 shown in FIG. 8 has an inclined surface 68b that becomes lower as the distance from the recording head 50 increases in the side wall bottom surface portion 67 that becomes the bottom surface in the vertical placement. In the orientation shown in FIG. 8, since the recording head 50 is disposed on the right side of the cap 60, the inclined surface 68b gradually decreases from right to left. Thereby, the effect similar to the example of Fig.7 (a) and FIG.7 (b) can be acquired.

  FIG. 9 is a cross-sectional view showing still another example of the cap 60. 9, the same components as those in FIG. 7B are denoted by the same reference numerals, and description thereof is omitted. 9 shows the posture of the cap 60 in a state where the ink jet recording apparatus 30 is placed vertically, as in FIG. 7B.

  The discharge portion 65 of the cap 60 shown in FIG. 9 is connected to the cap 60 in the vicinity where the cap bottom surface 64 and the side wall bottom surface portion 67 are adjacent to each other. As a result, even when the ink jet recording apparatus 30 is placed vertically or horizontally, the discharge unit 65 comes to a lower position in the recess of the cap 60, so that the waste liquid in the cap 60 can be more reliably leaked. Can be prevented.

  In addition, in the ink jet recording apparatus 30 shown in FIGS. 1 to 5, the ink jet recording apparatus 30 is mounted with the recording head 50 scanning in the horizontal direction and the wider surface of the main body cover 40 as the bottom surface. Is set to “horizontal placement” and placing the narrow side as the bottom is called “vertical placement”, but the name of the placement is not limited to this and may be reversed. Further, when the areas of the two bottom surfaces in the main body cover 40 are equal, any of them may be “vertically placed” or “landscape placed”. Further, instead of the main body cover 40, “vertical placement” or “horizontal placement” may be used based on the area of the bottom surface of the housing 32.

  In addition, the ink jet recording apparatus 30 shown in FIGS. 1 to 5 can record on the recording material 100 both in the case of portrait placement and in the case of landscape placement, but the embodiment of the present invention is not limited to this. I can't. Recording can be performed on the recording material 100 in one of the portrait orientation and the landscape orientation, but in the other side, recording can be performed on the placement surface 10 but recording on the recording material 100 is not possible. There may be.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

1 shows a state where an ink jet recording apparatus 30 according to an embodiment of the present invention is placed horizontally. A use state when the ink jet recording apparatus 30 is placed horizontally is shown. A use state when the ink jet recording apparatus 30 is placed vertically is shown. FIG. 2 is a cross-sectional view schematically showing a cross section of the ink jet recording apparatus 30 cut along a plane perpendicular to the arrow A in FIG. 1. 2 is a perspective view illustrating an outline of the inside of the ink jet recording apparatus 30. FIG. A perspective view of cap 60 is shown. It is sectional drawing which shows the cap main body 61 about the cross section parallel to the cross section shown in FIG. It is sectional drawing which shows the state by which the cap main body 61 shown to Fig.7 (a) was installed vertically. FIG. 8 is a cross-sectional view showing another example of the cap 60. 12 is a cross-sectional view showing still another example of the cap 60.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Mounting surface, 30 Inkjet recording device, 32 Housing | casing, 40 Main body cover, 42 Main body vertical bottom face, 44 Main body horizontal bottom face, 48 Bending part, 50 Recording head, 52 Guide shaft, 54 Timing belt, 55 Timing motor, 56 Feet, 60 cap, 61 cap body, 64 cap bottom surface, 65 discharge part, 66 cap side wall, 67 side wall bottom part, 68 waste liquid reservoir part, 68a damming part, 68b slope, 69 wiper, 70 waste liquid tube, 72 waste liquid pump, 80 Waste liquid tank, 100 Recording object, 110 frame, 120 Ink cartridge, 130 Ink supply part, 131 Cartridge connection part, 132 Supply tube, 135 Waste liquid part, 140 Paper feed tray, 141 Paper feed part, 142 Paper feed port, 144 Paper feed drive roller, 146 Paper feed driven roller, 150 paper feed guide, 160 recording unit, 161 platen, 170 paper discharge unit, 171 paper discharge drive roller, 172 paper discharge driven roller, 174 paper discharge port, 180 under paper discharge guide, 182 on paper discharge guide

Claims (5)

An apparatus main body having a main body vertical bottom surface which becomes a bottom surface when vertically placed and a main body horizontal bottom surface which becomes a bottom surface when horizontally placed;
Ink is ejected vertically downward in one of the case where the apparatus body is placed vertically and the case where it is placed horizontally, and the other side of the case where the apparatus body is placed vertically or horizontally, the horizontal direction A recording head that performs recording by ejecting ink onto the recording material by landing the ink on the recording material;
A cap bottom surface that is disposed opposite to the direction of ink ejection from the recording head and that serves as a bottom surface in the one of the vertical placement and the horizontal placement, and rises from the bottom surface of the cap toward the recording head, A cap side wall that forms a recess between the bottom surface of the cap and a cap that receives ink discharged from the recording head in the recess as a waste liquid;
In the other of the vertical placement and the horizontal placement, the waste liquid reservoir is disposed at a position to be a bottom surface of the cap side wall and accumulates the waste liquid in the recess in the other of the vertical placement and the horizontal placement. An ink jet recording apparatus.   The waste liquid reservoir has a slope that becomes lower as it is separated from the recording head in the vertical and horizontal positions on the cap side wall that is the bottom surface in the other of the vertical and horizontal positions. Item 2. An ink jet recording apparatus according to Item 1.   2. The ink jet recording apparatus according to claim 1, wherein the waste liquid reservoir has a damming wall that rises from the cap side wall serving as the bottom surface to the recess in the other of the vertical placement and the horizontal placement.   In the vicinity where the bottom surface of the cap and the side wall of the cap serving as the bottom surface in the other of the vertical placement and the horizontal placement are adjacent to each other, a discharge portion that discharges the waste liquid in the recess to the outside of the cap is further provided. The ink jet recording apparatus according to claim 1. A cap that receives ink discharged from a recording head of an ink jet recording apparatus as waste liquid,
A cap bottom face disposed in opposition to the direction of ink discharge from the recording head;
A cap side wall that rises from the bottom surface of the cap toward the recording head and forms a recess between the bottom surface of the cap; and
A cap provided with a waste liquid reservoir portion that is disposed at a position that is a bottom surface of the cap side wall in a posture in which the cap bottom surface is set up vertically, and that stores waste liquid in the recess in a posture in which the cap bottom surface is set up vertically.

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