Printing apparatus

Abstract

To eliminate a possibility that failure may be caused by water entering a device.SOLUTION: A printer includes: a second case which may house a roll sheet; a cover which may open or close the second case; a first case which covers at least a part of the second case; a third case which has a first surface and a second surface and a first wall and a second wall extending from the first surface; a substrate in which one surface is arranged so as to face the first surface of the third case; and a sheet which covers the other surface opposite to the one surface of the substrate. The first wall of the third case is formed so as to enclose a side surface of the substrate. The second wall of the third case is formed so as to enclose a periphery of the first wall. The sheet contacts with an end of the first wall and an end of the second wall.SELECTED DRAWING: Figure 2

Description

Technical Field

[0006] ,

[0001] The present invention relates to a printing apparatus.

Background Art

[0002] Conventionally, as shown in Patent Document 1, an apparatus having a waterproof mechanism for closing a paper discharge port for discharging printed paper is known.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above-described apparatus, water that has entered the apparatus from the paper discharge port during use is not considered, and there is a risk of problems occurring.

Means for Solving the Problems

[0005] The printing apparatus includes a second case capable of accommodating a roll paper, a cover capable of opening and closing the second case, a first case covering at least a part of the second case, a third case having a first surface and a second surface and having a first wall and a second wall extending from the first surface, a substrate disposed such that one surface thereof faces the first surface of the third case, and a sheet covering the other surface of the substrate opposite to the one surface. The first wall of the third case is formed so as to surround a side surface of the substrate, the second wall of the third case is formed so as to surround the periphery of the first wall, and the sheet abuts on an end of the first wall and an end of the second wall.

Brief Description of the Drawings

[0006] [Figure 1] A perspective view schematically showing the printing apparatus when the cover is open. [Figure 2] A cross-sectional view showing the circuit board mounted in the third case, with the cover closed. [Figure 3] A cross-sectional view showing the battery mounted in the third case. [Figure 4] A perspective view showing the printing apparatus covered by the fourth case. [Modes for carrying out the invention]

[0007] 1. First Embodiment 1-1. Configuration of the printing device The printing apparatus 1 according to the embodiment will be described below with reference to Figures 1 to 4. Directions in the figures will be described using a three-dimensional coordinate system. For convenience of explanation, the positive direction of the Z axis will be referred to as the upward direction or simply up, and the negative direction as the downward direction or simply down; the positive direction of the X axis will be referred to as the right direction or simply right, and the negative direction as the left direction or simply left; and the positive direction of the Y axis will be referred to as the forward direction or simply forward, and the negative direction as the backward direction or simply backward.

[0008] The printing device 1 according to this embodiment is used, for example, in a POS (Point of Sale) system. A POS system is a system used in retail businesses such as shopping centers, department stores, convenience stores, and in-vehicle sales, as well as in food and beverage businesses such as restaurants, cafes, and bars. The printing device 1 used in a POS system prints receipts, coupons, tickets, etc., depending on the goods or services. Printer 1 can also be carried and used by the staff performing the work. Printer 1 is also used for meter reading of water, electricity, and gas, as well as for settling rental car payments. In this case, Printer 1 may be used outdoors, and may even be used in rainy weather.

[0009] First, we will explain the external configuration of the printing device 1 using Figure 1. The printing device 1 consists of a cover 2, a head 3, rollers 4, a panel 5, and a case 10. Case 10 is equipped with a head 3, a panel 5, and a first stopper 14. Cover 2 is equipped with a roller 4 and a second stopper 31. Panel 5 is equipped with switches for staff operation, as well as LED and LCD display devices that are visible to staff.

[0010] Case 10 consists of Case 11, Case 2, and Case 3. Furthermore, the second case 12 has a side surface 12a, a bottom surface 12b, and a paper width restricting surface 12c.

[0011] As shown in Figure 2 below, the second case 12 is capable of accommodating a roll of paper R. The side surface 12a of the second case can support the roll of paper R from the front and rear directions. The bottom surface 12b of the second case can support the roll of paper R from below. The paper width restricting surface 12c of the second case can restrict the paper width from the left and right directions, which are the cross-sectional directions of the roll of paper R. Furthermore, when a staff member is carrying and using the printing device 1, the cover 2 can also support the roll paper. In addition, a first opening 13a is provided on the bottom surface 12b of the second case.

[0012] The first case 11 is configured to cover at least a portion of the second case 12. Specifically, the first case 11 covers at least the side surface 12a and the paper width restricting surface 12c of the second case. The first case 11 also covers the side of the printing device 1.

[0013] The first case 11 is provided with a hinge (not shown) in an upward and rearward position. The cover 2 is mounted on the first case 11 so as to be rotatable around the hinge. The cover 2 can be opened and closed relative to the second case 12. When a staff member opens cover 2, they gain access to the second case 12. The staff member opens cover 2, places the roll of paper R into the second case 12, pulls out paper P from the roll of paper R, and closes cover 2 in the direction of the arrow shown in Figure 1, thereby setting paper P into the printing device 1 as shown in Figure 2.

[0014] Next, the internal configuration of the printing apparatus 1 will be explained using Figure 2. When the cover 2 is closed, the rollers 4 provided on the cover 2 are positioned opposite the head 3 provided on the first case 11, with the paper P in between. Also, when the cover 2 is closed, a rectangular paper discharge port 20 is formed at the boundary between the cover 2 and the first case 11. In addition, in the third case 15, a fastener can be attached to the opposite side of the paper output port 20 for a staff member to attach the printing device 1 to their waist belt.

[0015] When cover 2 is closed, roller 4 contacts the back surface of paper P, allowing paper P to be pulled from the roll paper R in the second case 12 and transported in the transport direction. At the same time, head 3 contacts the front surface of paper P, making it ready for printing. The roller 4, which is located opposite the head 3 via paper P, is also called the platen roller. Furthermore, the printing apparatus 1 can have either the head 3 or the roller 4 installed in the first case 11, and the other of the head 3 or the roller 4 installed in the cover 2.

[0016] Paper P is, for example, a long sheet of thermal paper. Paper P has a thermal material coated on its surface, and an image can be printed on it using a line thermal head, head 3. The back side of paper P is the surface that contacts the roller 4. When cover 2 is closed, roller 4 rotates, transporting paper P in the transport direction indicated by the arrow in Figure 2, while head 3 is energized to print an image on paper P. The printed paper P is cut by a cutter (not shown) located downstream of the head 3 and roller 4 in the transport direction, and discharged from the paper discharge port 20. The discharged paper P is then given to the customer by the staff as a receipt or the like.

[0017] When the cover 2 closes, the second stopper 31 of the cover 2 abuts against the first stopper 14 of the first case 11, and the cover 2 is positioned. That is, when the cover 2 is closed, the cover 2 is in a fixed position with respect to the first case 11 without play. Since the second stopper 31 and the first stopper 14 can position the cover 2 with respect to the first case 11, the gap generated between the cover 2 and the first case 11 can be reduced when the cover 2 is closed. As a result, when the printing device 1 is used in rainy weather, etc., water intrusion from the gap between the cover 2 and the first case 11 can be suppressed.

[0018] In addition, since the cover 2 is positioned when it is closed, when a staff member presses the cover 2 when operating the printing device 1 or when it hits against a wall or the like, the cover 2 will not be further pushed into the first case 11. If the cover 2 is pushed into the first case 11, the cover 2 may contact and compress the roll paper R housed in the second case 12, resulting in a conveying load. The second stopper 31 and the first stopper 14 can also prevent the occurrence of such a conveying load. Note that when the cover 2 closes, a locking mechanism for locking the cover 2 to the first case 11 may be provided.

[0019] The third case 15 has a first surface 15a and a second surface 15b. The first surface 15a faces the inside of the printing device 1 that is upward, and the second surface 15b faces the outside that is downward. A second opening 13b that opens to the outside is formed in the third case 15. Further, as will be described later, a first opening 13a that opens toward the sheet 18 is formed in the second case bottom surface 12b of the second case 12. Even if water intrudes from the paper discharge port 20 or the gap between the cover 2 and the case 10, etc., it can be drained from the second opening 13b of the third case 15 via the first opening 13a of the second case bottom surface 12b of the second case 12.

[0020] The first rib 16, which forms the first wall, and the second rib 17, which forms the second wall, each extend upward from the first surface 15a of the third case 15 towards the interior of the printing device 1. The first rib 16 and the second rib 17 are formed with a predetermined gap between them so that a groove-like structure forms between them. The upper ends of the first rib 16 and the second rib 17 are the first rib end 16a, which is the end of the first wall, and the second rib end 17a, which is the end of the second wall, respectively. The first rib end 16a and the second rib end 17a are formed to be at the same height as each other and are positioned above the substrate 6 with respect to the first surface 15a.

[0021] The circuit board 6 is equipped with a processor that controls various parts of the printing device 1, as well as transistors for actuators that drive rollers 4 and other components. The circuit board 6 is fixed to the third case 15 by screws, snap-fits, etc. One side of the circuit board 6, the back surface 6b, is positioned to face the first surface 15a of the third case 15 at a predetermined distance.

[0022] The sheet 18 is formed from a resin such as PC (Polycarbonate) or PET (Polyethylene terephthalate), for example. These resins have excellent waterproofing, permeability, and self-extinguishing properties, making them suitable for covering the substrate 6. The thickness of the sheet 18 is, for example, 0.1 mm to 0.3 mm. The sheet 18 may be made of a flexible and waterproof rubber. For example, the sheet 18 may be made of fluororubber or silicone rubber.

[0023] The first rib 16 of the third case 15 is formed to surround the side surface 6c of the substrate 6, and the second rib 17 is formed to surround the periphery of the first rib 16. The sheet 18 can be positioned in close contact with the first rib end 16a and the second rib end 17a of the third case 15, and cover the surface 6a, which is the other side of the substrate 6 opposite to the back surface 6b, at a predetermined distance.

[0024] As described above, the back surface 6b of the substrate 6 is covered by the first surface 15a of the third case 15. On the other hand, the front surface 6a of the substrate 6 is covered by the sheet 18. Furthermore, the perimeter of the side surface 6c of the substrate 6 is surrounded by the first rib 16 provided on the third case 15. In addition, the perimeter of the first rib 16 is surrounded by the second rib 17. In this way, the circuit board 6 is covered by the third case 15 and the sheet 18, preventing water from entering. As a result, it is possible to prevent short circuits caused by water entering the circuit board 6, and thus prevent malfunctions that could lead to failure of the circuit board 6.

[0025] Furthermore, the third case 15 may be configured to have one or more additional ribs surrounding the second rib 17. A larger number of ribs can more reliably prevent water from entering the substrate 6. Furthermore, the sheet 18 may be fixed by being sandwiched between the first rib end 16a and the second rib end 17a of the third case 15 and the second case 12. The sheet 18 may also be fixed by being sandwiched between the first packing 19, which will be described later. In addition, the sheet 18 may be fixed directly to the third case 15 by screws, or it may be fixed to the third case 15 via a support (not shown). As a result, the sheet 18 can be tightly fitted without any gaps between it and the first rib end 16a and the second rib end 17a of the third case 15.

[0026] Incidentally, if it is necessary to extend the cable 7 outside the substrate 6, a first rib notch 16b, which is a first wall notch, and a second rib notch 17b, which is a second wall notch, are formed in the first rib 16 and second rib 17 of the third case 15, respectively, for passing the cable 7 through. The first rib notch 16b and the second rib notch 17b may also be in the shape of a hole or other form. Cable 7 could also be an FFC (Flexible Flat Cable), for example. Cable 7 extends, for example, from the circuit board 6 to the panel 5 or actuator.

[0027] A first packing 19 is provided to close the first rib notch 16b and the second rib notch 17b. The first packing 19 is formed of, for example, a flexible and waterproof resin. For example, the first packing 19 may be made of fluororubber or silicone rubber. The first packing 19 is flexible and can flex to close the first rib notch 16b and the second rib notch 17b, thereby sealing the area around the cable 7.

[0028] The first packing 19 has a rectangular parallelepiped shape that allows it to fit tightly into the groove between the first rib 16 and the second rib 17. The first packing 19 is inserted between the first rib 16 and the second rib 17 so as to close the first rib notch 16b and the second rib notch 17b. As a result, the first packing 19 can seal around the cable 7, preventing water from entering the substrate 6 from around the cable 7. The first packing 19 may also be inserted in the rearward direction of the first rib 16 and in the forward direction of the second rib 17 of the third case 15, respectively, to close the first rib notch 16b and the second rib notch 17b.

[0029] The first packing 19 is designed to be inserted and fixed between the first rib 16 and the second rib 17 of the third case 15, utilizing its flexibility. Alternatively, the first packing 19 may be fixed by being sandwiched between the third case 15 and the second case 12. The first packing 19 may be fixed directly to the third case 15 by screws, or it may be fixed to the third case 15 via a support (not shown). Even if a portion of the circuit board 6 is extended outside the circuit board 6 instead of the cable 7, the first packing 19 can seal the area around the extended circuit board 6, just as in the case of the cable 7 described above.

[0030] Next, the configuration of the housing section 21 capable of housing the battery 40 will be described using Figure 3. The battery 40 can be housed in the concave housing section 21 formed on the second surface 15b of the third case 15. The convex projection 41 of the battery 40 fits into the concave notch 22 of the third case 15 and is fixed in place. The connection terminal 43 extending from the substrate 6 can be connected to the electrodes of the battery 40. The battery 40 can supply power to the substrate 6 via the connection terminal 43.

[0031] The housing section 21 of the third case 15 has a second packing 24 that can contact the battery 40. The second packing 24 covers the inside of the housing section 21. The second packing 24 seals the space between the housing section 21 and the battery 40. The second packing 24 also seals the area around the connection terminals 43 that lead to the circuit board 6. In this way, the second packing 24 prevents water from entering the electrodes of the battery 40, the connection terminals 43, and the circuit board 6. The second packing 24 is formed, for example, from a flexible and waterproof resin. For example, the second packing 24 may be made of fluororubber or silicone rubber. The second packing 24 is flexible and can seal the space between the housing 21 and the battery 40, and around the connection terminals 43.

[0032] Furthermore, a third rib 23, which is a third wall, is formed on the edge of the housing section 21 on the second surface 15b of the third case 15, extending downward toward the outside. The battery 40 housed in the housing section 21 has its outer surface 42 exposed to the outside. The periphery of this outer surface 42 is surrounded by the third rib 23. In this way, the third rib 23 protrudes outward from both the outer surface 42 of the battery 40 and the second surface 15b of the third case 15. The third rib 23, which protrudes outward from the second surface 15b, prevents water drained from the second opening 13b of the third case 15 from flowing down the second surface 15b and entering the space between the housing 21 and the battery 40. Furthermore, the third rib 23, which protrudes outward from the outer surface 42 of the battery 40, protects the battery 40 when the printing device 1 falls and hits the floor, as the third rib 23, not the battery 40, will make the impact.

[0033] Next, the fourth case 50 covering the printing device 1 will be described using Figure 4. The fourth case 50 consists of a main body case 51 and a cover case 52. The main body case 51 and the cover case 52 can be opened and closed by a fastener 53. The fourth case 50 can completely cover the printing device 1 from the outside. Specifically, the cover case 52 of the fourth case 50 can cover the cover 2 of the printing device 1, and the main case 51 can cover the first case 11 and the third case 15 of the printing device 1. The staff can move the tab 53a to open and close the zipper 53, and store the printing device 1 in the fourth case 50, or take the printing device 1 out of the fourth case 50. The staff can also open the zipper 53 to open the cover 2 of the printing device 1 and store the roll paper R in the printing device 1.

[0034] The main body case 51 and the cover case 52 are made of, for example, a waterproof resin. The resin may be, for example, polyurethane or EVA (Ethylen-Vinyl Acetate). The main case 51 and the cover case 52 may be constructed, for example, by sewing together polyurethane sheets. Alternatively, the main case 51 and the cover case 52 may be constructed by combining molded EVA and sewn together polyurethane sheets. The zipper 53 is a so-called water-resistant zipper that can prevent water from entering when closed.

[0035] The main case 51 of the fourth case 50 has a second window 56 opening that exposes the panel 5 provided on the first case 11 of the printing device 1. The main case 51 also has a visibility film 57 made of a waterproof, transparent resin. The second window 56 is covered by the visibility film 57. The visibility film 57 is made of a resin such as PC or PET and is thinner than the sheet 18. The visibility film 57 may be about the same thickness as the sheet 18. When a staff member uses the printing device 1 in the posture shown in Figure 4, they can see the switches and LEDs on the panel 5 through the second window 56 via the viewing film 57 on the main case 51. The staff member can also operate the switches on the panel 5 through the second window 56 via the viewing film 57.

[0036] A paper discharge port 20 for discharging printed paper P is formed at the boundary between the cover 2 and the first case 11 of the printing device 1. A first window 55 is opened in the cover case 52 of the fourth case 50 so that the paper output port 20 of the printing device 1 is exposed to the outside. The cover case 52 also has a flap 54 that can open and close the first window 55. The flap 54 can be closed in the direction of the arrow to cover the first window 55. The flap 54 is made of the same material as the cover case 52. Furthermore, in the main case 51 of the fourth case 50, a fastener is provided on the opposite side of the first window 55 of the cover case 52, which can be attached to a staff member's belt.

[0037] One end of the flap 54 is fixed to the cover case 52 by stitching or other means, while the other end is detachable from the cover case 52. For example, the other end of the flap 54 is fitted with a magnet or a hook-and-loop fastener. Similarly, the surface of the cover case 52 is fitted with magnets or hook-and-loop fasteners at both ends in the front-to-back direction.

[0038] When the flap 54 is opened, the other end of the flap 54 can be secured to the rear end of the cover case 52 by magnets or hook-and-loop fasteners. At this time, the flap 54 can maintain a state in which the first window 55 is exposed. On the other hand, when the flap 54 is closed, the other end of the flap 54 can be secured to the front end of the cover case 52 by magnets or hook-and-loop fasteners. At this time, the flap 54 can maintain a state that covers the first window 55.

[0039] When using the printing device 1, the staff opens the flap 54 and secures it to the cover case 52, exposing the first window 55 so that the printed paper P can be removed from the paper output port 20. On the other hand, when the printing device 1 is not in use, the staff can close the flap 54 and secure it to the cover case 52, covering the first window 55 and preventing water from entering through the paper output port 20 or other openings.

[0040] The printing device 1 has an exposed first window 55, and if water enters from the paper discharge port 20 or the like, it can be drained through the first opening 13a of the bottom surface 12b of the second case and out of the second opening 13b of the third case 15, as described above. The water drained from the printing device 1 collects in the fourth case 50. Staff can move the tab 53a to open the fastener 53 and drain the water collected in the fourth case 50.

[0041] For example, when a staff member is using the printing device 1 attached to their waist belt, the printing device 1 will be in the position shown in Figure 4. When the printing device 1 is in this position, the tab 53a of the fastener 53 is positioned towards the rear, where water tends to accumulate in the fourth case 50. By simply moving the tab 53a slightly, the staff can quickly drain the water accumulated at the rear of the fourth case 50 out through the open fastener 53.

[0042] If water that enters the printing device 1 remains inside the printing device 1 for a long period of time, the risk of water entering the substrate 6 increases. With the above configuration, water can be quickly drained out of the printing device 1 and the fourth case 50, so that water that enters the printing device 1 does not remain inside for a long period of time, and the risk of water entering the substrate 6 can be reduced.

[0043] As described above, in the printing apparatus 1 of this embodiment, the first surface 15a of the third case 15 covers the back surface 6b of the substrate 6. Furthermore, the first rib 16 and the second rib 17 extend from the first surface 15a of the third case 15, and the sheet 18 abuts against the ends 16a and 17a of the first rib and covers the surface 6a of the substrate 6. The first rib 16 surrounds the side surface 6c of the substrate 6. As described above, the substrate 6 of the printing device 1 is covered by the third case 15 and the sheet 18. Even if water enters the printing device 1, it will not reach the substrate 6, thus preventing malfunctions from occurring.

[0044] Although this embodiment has been described in detail above with reference to the drawings, the specific configuration is not limited to the embodiment described above, and modifications, substitutions, deletions, etc., may be made as long as they do not depart from the spirit of this invention.

[0045] In the above explanation, head 3 was described using the example of a thermal head, but the printing method is not limited. For example, head 3 can be an inkjet head. In this case, since the inkjet head cannot contact the roller 4 to grip and transport the paper P, a driven roller that can grip and transport the paper P while facing the roller 4 should be mounted in the case 10.

[0046] In Figure 1, the second stopper 31 of cover 2 and the first stopper 14 of first case 11 are shown in an example where they are positioned to the right of the printing device 1. However, they may also be positioned to the left of the printing device 1, or to both the left and right of the printing device 1.

[0047] Figures 1 and 2 show an example where the first opening 13a is formed on the bottom surface 12b of the second case, but multiple first openings 13a may be formed at any position on the second case 12. For example, when using the printing device 1 in the posture shown in Figure 4, drainage can be performed more quickly if the first opening 13a is formed on the second case side surface 12a. Similarly, multiple second openings 13b may be formed at any position in the third case 15. Alternatively, the second openings 13b may be formed in the first case 11.

[0048] In the above example, the printing device 1 is shown to be powered by a battery 40 to the circuit board 6, but it is also possible to supply power to the circuit board 6 by an AC adapter. In this case, the battery 40 may also be charged by the AC adapter. Alternatively, the circuit board 6 may be equipped with an electromagnetic induction circuit including a power receiving coil, allowing the battery 40 to be wirelessly charged from an external electromagnetic induction charging pad. This would eliminate the need for the battery 40's electrodes to be exposed to the outside, and the connection terminals 43 extending from the circuit board 6 would also be unnecessary, thus improving waterproof performance.

[0049] The roll paper R may be wound so that the printing surface of the paper P faces inward. In this case, the positions of the head 3 and roller 4 will be reversed compared to the positions shown in Figures 1 and 2. [Explanation of symbols]

[0050] 1…Printing device, 2…Cover, 3…Head, 4…Roller, 5…Panel, 6…Substrate, 6a…Front, 6b…Back, 6c…Side, 7…Cable, 10…Case, 11…First case, 12…Second case, 13a…First opening, 13b…Second opening, 14…First stopper, 15…Third case, 16…First rib, 16a…First rib end, 16b…First rib notch, 17… 2 ribs, 17a...end of the second rib, 17b...notch of the second rib, 19...first packing, 21...storage section, 23...third rib, 24...second packing, 31...second stopper, 40...battery, 50...fourth case, 51...main case, 52...cover case, 53...fastener, 54...flap, 55...first window, 56...second window, 57...visibility film, P...paper, R...roll paper.

Claims

1. A second case capable of accommodating roll paper, The second case has a cover that can be opened and closed, A first case that covers at least a portion of the second case described above, A third case having a first surface and a second surface, and a first wall and a second wall extending from the first surface, A substrate is positioned such that one side faces the first surface of the third case, The substrate comprises a sheet covering the other side of the substrate opposite to the one side, The first wall of the third case is formed to surround the side surface of the substrate, and the second wall of the third case is formed to surround the periphery of the first wall. The sheet abuts against the end of the first wall and the end of the second wall, A printing apparatus in which the second case has a first opening that opens toward the sheet, and the third case has a second opening that opens toward the outside.

2. A second case capable of accommodating roll paper, The second case has a cover that can be opened and closed, A first case that covers at least a portion of the second case described above, A third case having a first surface and a second surface, and a first wall and a second wall extending from the first surface, A substrate is positioned such that one side faces the first surface of the third case, The substrate comprises a sheet covering the other side of the substrate opposite to the one side, The first wall of the third case is formed to surround the side surface of the substrate, and the second wall of the third case is formed to surround the periphery of the first wall. The sheet abuts against the end of the first wall and the end of the second wall, The second surface of the third case has a compartment for housing a battery, A printing apparatus in which a third wall extending outward is formed at the edge of the aforementioned housing section.

3. The first wall and the second wall have a first wall notch and a second wall notch through which a cable extending from the substrate passes. The printing apparatus according to claim 1 or 2, wherein the third case has a first packing capable of covering the first wall notch and the second wall notch.

4. The printing apparatus according to claim 2, wherein the housing portion has a second packing that can contact the battery.

5. The first case has a first stopper, The aforementioned cover has a second stopper, The printing apparatus according to any one of claims 1 to 4, wherein when the cover is closed, the first stopper and the second stopper come into contact with each other.

6. The fourth case comprises a cover case capable of covering the aforementioned cover and a main body case capable of covering the first case and the third case, The cover case is openable and closable by a zipper and has a first window that exposes a paper discharge opening formed at the boundary between the cover and the first case, and a flap that can cover the first window. The printing apparatus according to any one of claims 1 to 5, wherein the main body case has a second window that exposes a panel provided in the first case, and a viewing film that covers the second window.

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