Check scanner

Abstract

To solve the problem that a distance between CIS modules is not stable because it is positioned with a plurality of components, and variation of each component has a possibility of being accumulated, and a manufacturing cost is increased by adjusting a position in an assembling step in order to suppress variations.SOLUTION: A check scanner comprises: a first reading part that includes a first reading sensor that is arranged to a direction crossed with a conveyance direction of a check; a second reading part that includes a second reading sensor that is arranged so as to be opposite to the first reading part, and is arranged along the direction to be crossed to them; a conveyance part that conveys the check so as to pass to between the first and second reading parts; and a lower part positioning member that relatively positions each lower part of the first reading part and the second reading part. The lower positioning member comprises: a first lower positioning part that is formed by a single component, and enables a positioning of the first reading part against the second reading part; and a second lower positioning part that enables the second reading part against the first reading part.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a check scanner.

Background Art

[0002] In order to digitize paper checks, check scanners are used in the market. A check scanner is equipped with a CIS module, which is a contact image sensor, for the front side / back side. The front-side / back-side CIS modules are arranged facing each other and image a check passing between them. This scan image quality is affected by the distance between the CIS module and the object to be imaged. Therefore, the positioning between the facing CIS modules is an important factor for the check scanner. In conventional check scanners shown in Patent Document 1 and the like, the distance between the CIS modules was positioned via a plurality of components.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In conventional check scanners, the distance between the front-side / back-side CIS modules was determined via a plurality of components. In such a structure with a plurality of intervening components, variations in each component may accumulate, and the distance between the CIS modules may not be stable. Also, although it is possible to perform position adjustment in the assembly process to suppress variations, the manufacturing cost increases.

Means for Solving the Problems

[0005] The present invention relates to a check scanner including: a first reading unit having first reading sensors arranged in a direction intersecting the conveyance direction of checks; a second reading unit arranged opposite to the first reading unit and having second reading sensors arranged along the intersecting direction; a conveyance unit configured to convey checks so as to pass between the first reading unit and the second reading unit; and a lower positioning member configured to relatively position the lower part of the first reading unit and the lower part of the second reading unit. The lower positioning member is formed of a single part and includes a first lower positioning part configured to position the first reading unit with respect to the second reading unit, and a second lower positioning part configured to position the second reading unit with respect to the first reading unit.

Brief Description of the Drawings

[0006]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Modes for Carrying Out the Invention

[0007] Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a check scanner according to an embodiment of the present invention in a plan view, and FIG. 2 shows a schematic configuration of the check scanner in a block diagram. The check scanner 10 includes a predetermined conveyance path 11 for conveying a horizontally long rectangular check in the longitudinal direction, a conveyance unit 12 for conveying the check along the conveyance path 11, and a contact image sensor unit 20 for reading images of both sides of the check in the middle of the conveyance path 11. Hereinafter, the contact image sensor is also referred to as CIS.

[0008] FIG. 3 shows the arrangement of the contact image sensor according to an embodiment of the present invention in a side view. The CIS unit 20 is supported so that the reading surfaces of the two CISs 21a and 21b face each other with the conveyance path 11 interposed therebetween. Each of the CISs 21a and 21b has light pixel sensors (not shown) for detecting light and dark arranged in a row or in a staggered pattern, and outputs data such as light and dark corresponding to the images of the front and back surfaces of the check, which is the object to be imaged, via a glass plate arranged on the reading surface. Image data is obtained using the data output by the CISs 21a and 21b every minute while the object to be imaged is being conveyed at a predetermined speed.

[0009] It is assumed that the distance between the object to be imaged and the glass surface of the CIS is within a predetermined range, and the accuracy of the distance between the two CISs 21a and 21b facing each other across the check conveyance path 11 affects the accuracy of the image data. The light pixel sensors arranged in a row correspond to the first reading sensor and the second reading sensor. CIS21a corresponds to a first reading unit having a first reading sensor arranged in a direction intersecting the check conveyance direction, and CIS21b corresponds to a second reading unit arranged opposite to the first reading unit and having a second reading sensor arranged along the intersecting direction. The conveyance unit 12 conveys the check so as to pass between the first reading unit and the second reading unit.

[0010] The conveyance path 11 is formed in a groove shape, and the upper part of the check is conveyed in a state where it is exposed to the outside. A part of the conveyance path 11 where the CIS unit 20 is disposed can be opened and closed to eliminate paper jams that occur during the conveyance of the check or for maintenance.

[0011] FIG. 8 shows the check scanner in a perspective view. That is, the check scanner 10 includes a first unit 13 that houses most of the components including the CIS 21b, and a second unit 14 that is rotatably supported by the first unit and includes the CIS 21a. The second unit 14 is supported by the first unit 13 by a predetermined opening / closing axis. In the closed state, the CIS 21b is supported at a predetermined distance close to the CIS 21a, and in the open state, the CIS 21b and the CIS 21a are in a largely separated state, making it easy to remove a jammed check and facilitating maintenance. In this embodiment, the check scanner 10 is composed of two units, the first unit 13 and the second unit 14, but another part may be made openable and closable according to the conveyance path 11. Further, the opening / closing mechanism is not limited to the configuration of rotation by shaft support, and can also be realized by other configurations such as sliding open and close.

[0012] As shown in FIG. 2, in addition to the conveyance unit 12 and the CIS unit 20, the check scanner 10 includes a control unit 30 that controls these, an interface unit 40 that communicates with an external device, and a display operation unit 50 that includes an LED, a push button switch, and the like. The control unit 30 causes the check to be conveyed along the conveyance path 11 by the conveyance unit 12 in response to an operation by the display operation unit 50 or an operation command via the interface unit 40, converts the front and back surfaces of the check into image data by the CIS unit 20, and transmits it to the external device via the interface unit 40. Further, the control unit 30 displays the operating state and the like on the display operation unit 50, and the control unit 30 detects an operation of the display operation unit 50 performed in response to the display on the display operation unit 50 and performs a corresponding operation.

[0013] FIG. 3 is a side view showing the arrangement of a contact image sensor according to an embodiment of the present invention. A CIS21a which is a first reading unit and a CIS21b which is a second reading unit are arranged to face each other with the conveyance path 11 interposed therebetween. Glass surfaces 21a1 and 21b1 which are reading surfaces in the respective CIS21a and CIS21b face the conveyance path 11. The distance from the glass surfaces 21a1 and 21b1 to the object to be imaged needs to be equal to or less than a predetermined distance. This is because the image accuracy decreases if the distance is exceeded. The width of the conveyance path 11 is designed so as not to exceed this distance, and a lower positioning member 60 and an upper positioning member 70 are arranged between the CIS21a and the CIS21b.

[0014] The lower positioning member 60 is composed of a single piece and is integrally formed in a plate shape, and has a convex shape with the center protruding upward. The convex portion 61 is a portion sandwiched between the lower portions of the CIS21a and the CIS21b. The CIS21a and the CIS21b abut against both side surfaces of the convex portion 61, and the interval between the CIS21a and the CIS21b coincides with the width of the convex portion 61. A portion of the side surface of the convex portion 61 that abuts against the CIS21a is called a first lower positioning portion 61a, and a portion of the side surface of the convex portion 61 that abuts against the CIS21b is called a second lower positioning portion 61b.

[0015] The first lower positioning portion 61a enables relative positioning between the CIS21a and the CIS21b by abutting against the CIS21a. Similarly, the second lower positioning portion 61b enables relative positioning between the CIS21a and the CIS21b by abutting against the CIS21b. That is, it includes a first lower positioning portion that enables positioning of the first reading unit with respect to the second reading unit, and a second lower positioning portion that enables positioning of the second reading unit with respect to the first reading unit. In this way, it becomes possible to determine the distance between the CISs with a small number of parts such as a single convex portion 61, variation is suppressed, and the image reading image quality can be improved. Further, there is an effect that the number of parts can be reduced.

[0016] In this embodiment, the first lower positioning portion 61a and the second lower positioning portion 61b are respectively in contact with the portions on the side of the glass surfaces 21a1 and 21b1 of the CISs 21a and 21b. Further, the first lower positioning portion 61a and the second lower positioning portion 61b are at a height reaching the glass surfaces 21a1 and 21b1. Since the glass surfaces 21a1 and 21b1 are the reference positions for reading, when the first lower positioning portion 61a and the second lower positioning portion 61b are directly in contact with and positioned by the glass surfaces 21a1 and 21b1, the positioning accuracy is further improved, and the reading accuracy can be maintained at a high level. However, it is not necessary for both the first lower positioning portion 61a and the second lower positioning portion 61b to be directly in contact with the glass surfaces 21a1 and 21b1; only one of them may be sufficient. Also, being directly in contact means that it can also be said that at least one of the glass surfaces 21a1 and 21b1 overlaps with the first lower positioning portion 61a and the second lower positioning portion 61b when viewed in the direction orthogonal to the glass surfaces 21a1 and 21b1. By doing so, the peripheral members of the glass surface can be made shorter, leading to miniaturization in the height direction of the apparatus.

[0017] Since the lower positioning member 60 is formed in a convex shape as a single piece, it is easy to improve the dimensional accuracy of the width of the convex portion 61. In this way, the relative distance between the two can be maintained with high accuracy simply by sandwiching the convex portion 61 at the lower parts of the CISs 21a and 21b. In addition, by placing the CISs 21a and 21b on the plate-like portions 62, 62 other than the convex portion 61 in the lower positioning member 60, the positioning in the vertical direction is also facilitated.

[0018] The upper surface of the convex portion 61 forms the bottom surface within the space sandwiched between the CISs 21a and 21b. The space sandwiched between the CISs 21a and 21b is the conveyance path 11. Since the check is passing through this space, the upper surface of the convex portion 61 is the conveyance surface on which the lower edge of the check is placed. In this way, the lower positioning member 60 is provided with a conveyance surface on which the lower edge of the check is placed on the upper surface of the convex portion 61. By doing so, the lower positioning member 60 has a conveyance surface for the check, resulting in a reduction in the number of parts.

[0019] FIG. 4 shows the arrangement of the contact image sensor according to the modified example in a side view. In this modified example, a paper passing surface member 163 of another member is fixed to the upper part of the lower positioning member 160. Thus, it is not necessary for the lower positioning member 60 to have a single piece with a conveying surface on which the lower edge of the slip is placed. Further, in this modified example, the plate-like portions 62, 62 of the lower positioning member 60 are not provided either, and the fixing of the CISs 21a and 21b is performed by other members 162 or the like.

[0020] The upper positioning member 70 is composed of a positioning piece portion 71 that is formed as a single piece and matches the width of the convex portion 61 of the lower positioning member 60, and a support piece portion 72 that lifts the positioning piece portion 71 from above and is fixed to the upper surface of the CIS 21b with a screw 73. In this embodiment, the cross section is formed in a crank shape, and the positioning piece portion 71 protruding downward matches the width of the convex portion 61 in the lower positioning member 60. The portion of the side surface of the positioning piece portion 71 that abuts against the CIS 21a is called the first upper positioning portion 71a, and the portion of the side surface of the positioning piece portion 71 that abuts against the CIS 21b is called the second upper positioning portion 71b.

[0021] The first lower positioning portion 71a abuts against the CIS 21a to enable relative positioning between the CIS 21a and the CIS 21b. Similarly, the second lower positioning portion 71b abuts against the CIS 21b to enable relative positioning between the CIS 21a and the CIS 21b. That is, it includes a first upper positioning portion that enables positioning of the first reading portion with respect to the second reading portion, and a second upper positioning portion that enables positioning of the second reading portion with respect to the first reading portion. In this way, it is possible to determine the distance between the CISs with a small number of parts, namely, the single-piece positioning piece portion 71, which can suppress variations and improve the image reading quality. Also, the effect of reducing the number of parts is produced.

[0022] In this embodiment, the first upper positioning portion 71a and the second upper positioning portion 71b are each in contact with a portion on the side of the glass surfaces 21a1 and 21b1 of the CISs 21a and 21b, respectively. The first upper positioning portion 71a and the second upper positioning portion 71b do not directly reach the glass surfaces 21a1 and 21b1. However, as shown by the dashed line in FIG. 3, the positioning piece portion 71c can be further extended downward to directly reach the glass surfaces 21a1 and 21b1. Since the glass surfaces 21a1 and 21b1 are the reference positions for reading, the first upper positioning portion 71a and the second upper positioning portion 71b are directly in contact with the glass surfaces 21a1 and 21b1 for positioning. By doing so, the reading accuracy can be maintained at a high level. However, it is not necessary for both the first upper positioning portion 71a and the second upper positioning portion 71b to directly contact the glass surfaces 21a1 and 21b1; only one of them may be sufficient. Also, by "directly in contact" it can be said that the first upper positioning portion 71a and the second upper positioning portion 71b overlap at least one of the glass surfaces 21a1 and 21b1 when viewed from a direction orthogonal to the glass surfaces 21a1 and 21b1.

[0023] Since the upper positioning member 70 is formed as a single piece, it is easy to improve the dimensional accuracy of the width of the positioning piece portion 71. By doing so, the relative distance between the two can be maintained with high accuracy simply by sandwiching the positioning piece portion 71 at the upper parts of the CISs 21a and 21b. As described above, in this embodiment, the lower positioning member 60 and the upper positioning member 70 accurately position the upper and lower parts of the CISs 21a and 21b by contacting the glass surface side. However, it is not necessary for both the upper and lower parts; either one may be sufficient. Also, it may be sufficient to contact only one of the glass surface sides.

[0024] FIG. 5 and FIG. 6 show the arrangement of the contact image sensor according to the modified example in a side view. In this embodiment, the upper positioning member 170 is composed of a positioning piece portion 171 and a support piece portion 172 that lifts the positioning piece portion 171 from above and is fixed to the upper surface of the CIS 21b so as to be rotatable via a rotation shaft 173. Note that the positioning piece portion 171 corresponds to the upper positioning portion, and the support piece portion 172 corresponds to the support portion that supports the upper positioning portion.

[0025] The heights of the cheques are various, and sometimes there are cheques with a higher height. When the height of the cheque is high, if the positioning piece portion 171 blocks the upper part of the conveyance path 111, it may not be possible to pass the cheque through the paper. In such a case, when the positioning piece portion 171 is rotated 90 degrees clockwise via the rotation shaft 173 and flipped up, it will no longer block the upper part of the conveyance path 111, and it will be possible to pass a cheque with a high height through the paper. Also, when the cheque is jammed or during maintenance, the conveyance path 111 can be exposed, increasing convenience.

[0026] In this way, the support portion supports the upper positioning portion so that it can be opened and closed. When the positioning piece portion 171, which is the upper positioning portion, closes, it enters between the upper part of the CIS 21a, which is the first reading portion, and the upper part of the CIS 21b, which is the second reading portion, for positioning. When the positioning piece portion 171, which is the upper positioning portion, is opened, it retreats from between the upper part of the CIS 21a, which is the first reading portion, and the upper part of the CIS 21b, which is the second reading portion.

[0027] In this embodiment, the upper positioning member 70 is provided in the first unit 13, and the lower positioning member 60 is provided in the second unit 14. However, the arrangement can be changed as appropriate. For example, the upper positioning member 70 may be provided in the first unit 13, and the lower positioning member 60 may be provided in the second unit 14.

[0028] FIG. 7 shows the arrangement of the contact image sensor according to the modification in a side view. In this embodiment, the CIS 21a and the lower positioning member 60 are supported by the first unit 13, and the CIS 21b and the upper positioning member 70 are supported by the second unit 14. Here, the CIS21b is fixed to the upper positioning member 70 with a screw 73, and the upper positioning member 70 is supported with respect to the second unit 14 via a spring 80 which is an elastic member.

[0029] That is, the CIS21a which is the first reading unit is supported by the first unit 13, the CIS21b which is the second reading unit is supported by the second unit 14, and the CIS21b which is one of the opposing first reading unit and the second reading unit is biased and supported by a spring 80 which is an elastic member toward the opposing counterpart side. Then, when the first unit 13 and the second unit 14 are closed, the upper positioning member is brought into contact with the first reading unit by the spring 80, and the second reading unit is brought into contact with the lower positioning member 60 and positioned at a predetermined position.

[0030] In this embodiment, only the CIS21b which is the second reading unit is supported by the spring 80 which is an elastic member, but only the CIS21a which is the first reading unit may be supported by the spring 80 which is an elastic member, or both the CIS21b which is the second reading unit and the CIS21a which is the first reading unit may be supported by the spring 80 which is an elastic member. In this case, which side the lower positioning member 60 and the upper positioning member 70 are supported on can be changed as appropriate.

[0031] FIG. 9 shows a plan view of the arrangement of the contact image sensor according to the modified example. As shown in the figure, in a plan view, the upper positioning member 170 overlaps with the reading position 21a2 of the CIS21a which is the first reading sensor and the reading position 21b2 of the CIS21b which is the second reading sensor. By overlapping, the reading position 21a2 and the reading position 21b2 are covered on the upper surface of the conveyance path 11, so that it is possible to block the illumination light from entering the reading position 21a2 and the reading position 21b2 from above or obliquely from above. As a result, it is possible to suppress the influence of disturbance and perform reading. Saying that it overlaps with the reading position can also be expressed as arranging a part of the upper positioning member 170 so as to overlap with the first reading sensor and the second reading sensor when viewed from a direction orthogonal to the glass surfaces of the first reading unit and the second reading unit.

[0032] The range that blocks the incidence of illumination light varies depending on the arrangement of the upper positioning member 170. If the upper positioning member 170 overlaps with the CIS 21a which is the first reading unit and the CIS 21b which is the second reading unit in a plan view, it has the effect of blocking the incidence of illumination light. Doing so leads to miniaturization in the direction intersecting both the vertical direction and the direction orthogonal to the glass surfaces of the first reading unit and the second reading unit. This means that, when the direction orthogonal to the glass surface of the reading unit is defined as the first direction, one end and the other end of the upper positioning member 170 in the first direction are provided between one end and the other end of the first reading unit in the first direction, and it can also be expressed that one end and the other end of the upper positioning member 170 in the first direction are provided between one end and the other end of the second reading unit in the first direction.

[0033] FIG. 10 shows the arrangement of the contact image sensor according to the modification in a side view. Compared with the upper positioning member 70 shown in FIG. 9, the upper positioning member 270 of the present embodiment is longer along the direction of the conveyance path 11. That is, when the conveyance direction of the slips along the conveyance path 11 is defined as the first direction, one end 21a3 and the other end 21a4 of the CIS 21a which is the first reading unit in the first direction are provided between one end 271 and the other end 272 of the upper positioning member 270 in the first direction, and one end 21b3 and the other end 21b4 of the CIS 21b which is the second reading unit in the first direction are provided between one end 271 and the other end 272 of the upper positioning member 270 in the first direction.

[0034] Doing so can expand the range covering the reading position, so that the influence of disturbance can be suppressed more effectively. In addition, when CIS21a and 21b are arranged facing each other, the background plate (black surface) may be included in the internal structure of the CIS. Also, CIS21a and 21b may be arranged at separate locations instead of facing each other. In this case, the background plate can be replaced with a separate component.

[0035] Needless to say, the present invention is not limited to the above embodiments. As is obvious to those skilled in the art, · Appropriately changing the combinations of the mutually replaceable members, configurations, etc. disclosed in the above embodiments and applying them · Although not disclosed in the above embodiments, appropriately replacing members and configurations, etc. that are known technologies and mutually replaceable with the members and configurations, etc. disclosed in the above embodiments, and also changing their combinations and applying them · Although not disclosed in the above embodiments, appropriately replacing members and configurations, etc. that can be assumed by those skilled in the art as substitutes for the members and configurations, etc. disclosed in the above embodiments based on known technologies, etc., and also changing their combinations and applying them are disclosed as one embodiment of the present invention.

Explanation of Reference Numerals

[0036] 10... Check Scanner, 11... Conveyor Path, 12... Conveyor Unit, 13... First Unit, 14... Second Unit, 20... Contact Image Sensor Unit (CIS Unit), 21a1, 21b1... Glass Surfaces, 21a2, 21b2... Reading Positions, 21a3, 21b3... One End, 21a4, 21b4... The Other End, 30... Control Unit, 40... Interface Unit, 50... Display and Operation Unit, 60... Lower Positioning Member, 61... Convex Portion, 61a... First Lower Positioning Portion, 61b... Second Lower Positioning Portion, 62... Plate-like Portion, 70... Upper Positioning Member, 71... Positioning Piece Portion, 71a... First Upper Positioning Portion, 71b... Second Upper Positioning Portion, 71c... Positioning Piece Portion, 72... Support Piece Portion, 73... Screw, 80... Spring, 111... Conveyor Path, 160... Lower Positioning Member, 162... Member, 163... Sheet-Passing Surface Member, 170... Upper Positioning Member, 171... Positioning Piece Portion, 172... Support Piece Portion, 173... Rotation Axis, 270... Upper Positioning Member, 271... One End, 272... The Other End.

Claims

1. A first reading unit having a first reading sensor arranged in a direction intersecting the conveyance direction of the check; A second reading unit arranged opposite to the first reading unit and having a second reading sensor arranged along the intersecting direction; A conveyance unit for conveying the check so as to pass between the first reading unit and the second reading unit; A check scanner comprising a lower positioning member for relatively positioning the lower part of the first reading unit and the lower part of the second reading unit, wherein the lower positioning member is formed of a single part, a first lower positioning part enabling positioning of the first reading unit with respect to the second reading unit, and a second lower positioning part enabling positioning of the second reading unit with respect to the first reading unit. The check scanner is characterized by comprising these.

2. The check scanner according to claim 1, wherein the first lower positioning part abuts on a part on the glass surface side of the first reading unit, and the second lower positioning part abuts on a part on the glass surface side of the second reading unit.

3. The check scanner according to claim 1 or claim 2, wherein the lower positioning member overlaps at least one of the glass surface of the first reading unit and the glass surface of the second reading unit when viewed from a direction orthogonal to the glass surface.

4. Comprising an upper positioning member for relatively positioning the upper part of the first reading unit and the upper part of the second reading unit, wherein the upper positioning member is formed of a single part, a first upper positioning part enabling positioning of the first reading unit with respect to the second reading unit, and a second upper positioning part enabling positioning of the second reading unit with respect to the first reading unit. The check scanner according to claim 1 is characterized by comprising these.

5. The check scanner according to claim 4, wherein the first upper positioning part abuts on a part on the glass surface side of the first reading unit, and the second upper positioning part abuts on a part on the glass surface side of the second reading unit.

6. The check scanner according to claim 3, wherein the upper positioning member overlaps at least one of the glass surface of the first reading unit and the glass surface of the second reading unit when viewed from a direction orthogonal to the glass surface.

7. The check scanner according to claim 1 or claim 2, wherein the lower positioning member comprises a conveyance surface on which the lower edge of the check is placed at the upper part.

8. The upper positioning member is an upper positioning portion including the first upper positioning portion and the second upper positioning portion; a support portion that supports the upper positioning portion; The check scanner according to claim 4, characterized by comprising the above.

9. The support portion supports the upper positioning portion in an openable and closable manner, When the upper positioning portion is closed, it enters between the upper portions of the first reading portion and the second reading portion, The check scanner according to claim 8, characterized in that when the upper positioning portion is opened, it retreats from between the upper portions of the first reading portion and the second reading portion.

10. a first unit including the first reading portion; a second unit including the second reading portion, rotatably supported by the first unit, and comprising: The upper positioning member is provided on the first unit, The check scanner according to claim 4, characterized in that the lower positioning member is provided on the second unit.

11. The first reading portion is supported by the first unit, the second reading portion is supported by the second unit, and one or both of the opposed first reading portion and the second reading portion are elastically biased and supported toward the opposed counterpart side, and when the first unit and the second unit are closed, the elastic member abuts one or both of the first reading portion and the second reading portion against the upper positioning member and the lower positioning member to be positioned at a predetermined position. The check scanner according to claim 10, characterized by the above.

12. The check scanner according to claim 4, characterized in that the upper positioning portion overlaps the reading positions of the first reading sensor and the second reading sensor in a plan view.

13. The check scanner according to claim 11, The check scanner according to claim 4, characterized in that the upper positioning portion overlaps the first reading portion and the second reading portion in a plan view.

14. When the conveying direction of the check is defined as the first direction, One end and the other end of the first reading portion in the first direction are provided between one end and the other end of the upper positioning portion in the first direction, and The check scanner according to claim 12, characterized in that one end and the other end of the second reading portion in the first direction are provided between one end and the other end of the upper positioning portion in the first direction.

Images