JP2006264160A - Device for opening and closing cover, inkjet type recorder and liquid ejector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely prevent break of a lever when a cover moves due to a shock of dropping or the like without a cost increase being brought about while the smooth rotary motion of the cover is secured. <P>SOLUTION: The cover 49 which covers an opening for inserting an ink cartridge is set rotatably to a frame 33 which constitutes a printer bottom part. Opening and closing states of the cover 49 are detected by an opening and closing sensor 55 equipped with both a sensor lever 56 which can be engaged with a part to be engaged 49b formed in the cover 49, and a detecting part 57 which detects a displacement of the sensor lever 56. A part with which the sensor lever 56 connects in the part to be engaged 49b is formed by a flat surface 49c which extends in a rotary axis direction of the cover 49. Even when the cover 49 moves in the rotary axis direction, the part to be engaged 49b can smoothly move relatively to the sensor lever 56 without applying any force to the sensor lever 56. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cover opening / closing device comprising: a cover that switches between a closed state that covers the opening by rotation and an open state that opens the opening; and an open / closed state detecting means that detects the open / closed state of the cover. The present invention also relates to an ink jet recording apparatus and a liquid ejecting apparatus including the same.

Here, the liquid ejecting apparatus uses an ink jet recording head, and is not limited to a recording apparatus such as a printer, a copying machine, and a facsimile machine that discharges ink from the recording head to perform recording on a recording medium. And a device that ejects a liquid corresponding to the application from a liquid ejecting head corresponding to the ink jet recording head to an ejected medium corresponding to a recording medium, and adheres the liquid to the ejected medium. .
In addition to the recording head, as a liquid ejecting head, a color material ejecting head used for manufacturing a color filter such as a liquid crystal display, and an electrode material (conductive paste) used for forming an electrode such as an organic EL display or a surface emitting display (FED) Examples thereof include an ejection head, a bioorganic matter ejection head used for biochip production, and a sample ejection head as a precision pipette.

  An example of the recording apparatus or the liquid ejecting apparatus is an ink jet printer. The inkjet printer has a slot (opening) that can be directly attached to a digital still camera without requiring a connection with a personal computer, etc., and the inkjet printer can perform recording operations alone. There is a possibility (so-called stand-alone printer).

In addition, there is a type of ink jet printer in which an ink cartridge is not provided in the carriage but is fixed to the printer main body, and such an ink jet printer has an opening for inserting and removing the ink cartridge. The
As described above, an ink jet printer may be provided with an opening in order to detachably mount various elements. Such an opening can be freely opened and closed to prevent entry of dust and the like and to improve the appearance. It is common to cover with a cover. An example of such a cover is shown in Patent Document 1, for example.

JP 2004-306521 A

  Here, for example, in the case of a configuration in which the ink cartridge is fixedly provided on the printer main body side without being provided on the carriage, the ink cartridge may be pulled out by the user even during printing, and therefore the ink cartridge insertion / removal opening It is desirable to provide a sensor for detecting the open / closed state of the cover that covers the printing unit so that printing is not executed when the cover is open. Similarly, even in the case of a cover that covers a slot in which a memory card can be inserted, there is a possibility that the memory card may be removed by the user even during data access. Therefore, a sensor that detects the open / closed state of the cover is provided. It is desirable that the read / write operation is not performed on the memory card in the open state.

  As an example of the configuration of the sensor that detects the open / closed state of the cover, there is a sensor lever that can be engaged with the cover and a detection unit that detects the displacement of the sensor lever. In some cases, when the cover is closed, the closed state of the cover is detected by pressing the sensor lever, and when the cover is opened, the open state of the cover is detected by moving the cover away from the sensor lever.

  By the way, the cover may provide a slight play in the direction of the rotation axis for smooth rotation. In such a configuration, when an impact such as dropping is applied to the inkjet printer, the cover moves in the direction of the rotation axis, and as a result, an unexpected force is applied to the lever that engages the cover, causing the lever to break. There is a fear. However, on the other hand, if the play of the cover in the direction of the rotational axis is eliminated, a smooth rotational operation cannot be performed, and a high part accuracy is required, resulting in an increase in cost.

  Therefore, the present invention has been made in view of such problems, and the object of the present invention is to prevent damage to the lever when the cover is moved by an impact such as dropping, while ensuring a smooth rotation of the cover and cost. It is to surely prevent without inviting up.

  In order to solve the above-mentioned problem, a first aspect of the present invention detects a cover that switches between a closed state that covers an opening and an open state that opens the opening by rotating, and an open / closed state of the cover An opening / closing state detection means, wherein the opening / closing state detection means detects a sensor lever engageable with an engaged portion formed on the cover, and detects a displacement of the sensor lever. And when the cover is closed, the engaged portion pushes the sensor lever to detect the closed state of the cover. When the cover is opened, the engaged portion is moved to the sensor lever. The cover is configured so that the open state of the cover is detected by moving away from the cover, and a portion of the engaged portion with which the sensor lever abuts is formed by a surface extending in the rotation axis direction of the cover. And butterflies.

  According to the above aspect, in the engaged portion with which the sensor lever is engaged in the cover, the portion with which the sensor lever abuts is formed by a surface extending in the rotation axis direction of the cover. Even if the cover moves in the rotation axis direction with the sensor lever in contact with the engaged portion, the engaged portion does not apply force to the sensor lever, and the sensor lever is smooth. Therefore, the sensor lever can be reliably prevented from being damaged. Further, since it is not necessary to eliminate play in the direction of the rotation axis of the cover, a smooth rotation operation of the cover is ensured, and it is not necessary to improve the accuracy of parts, so that the cost is not increased.

According to a second aspect of the present invention, in the first aspect, a portion of the engaged portion with which the sensor lever abuts is formed by a flat surface.
According to the above aspect, since the portion with which the sensor lever abuts is formed by a flat surface in the engaged portion, the sensor lever moves in the detection direction even if the cover moves in the rotational axis direction. Therefore, erroneous detection of the open / closed state of the cover can be prevented.

According to a third aspect of the present invention, there is provided an urging means for urging the cover in a rotation axis direction of the cover.
According to the above aspect, since the cover has a biasing means for biasing the cover in the direction of the rotation axis of the cover, play in the direction of the rotation axis of the cover is provided to perform a smooth rotation operation. While maintaining, the positional deviation of the cover in the rotation axis direction can be reduced or prevented. Even when an impact or the like is applied to the apparatus, the cover is difficult to move in the direction of the rotation axis, so that the sensor lever can be more reliably prevented from being damaged.

  According to a fourth aspect of the present invention, a carriage having an ink jet recording head for recording on a recording medium, a detachable ink cartridge provided independently from the carriage, and the ink cartridge is inserted and removed by rotating. 4. The apparatus according to claim 1, further comprising: a cover that switches between a closed state that covers the opening for opening and an open state that opens the opening; and an open / closed state detection unit that detects the open / closed state of the cover. An ink jet recording apparatus comprising the cover opening / closing device described above. According to this aspect, in the ink jet recording apparatus, it is possible to obtain the same functions and effects as those of the first to third aspects described above.

  According to a fifth aspect of the present invention, there is provided a carriage having a liquid ejecting head for recording on an ejected medium, a detachable liquid cartridge provided independently from the carriage, and the liquid cartridge being inserted and removed by rotating. A cover that switches between a closed state that covers the opening for opening and an open state that opens the opening, and a cover opening and closing device that includes an opening and closing state detecting means for detecting the opening and closing state of the cover, the opening and closing state The detecting means includes a sensor lever that can be engaged with an engaged portion formed on the cover, and a detecting portion that detects displacement of the sensor lever. When the cover is closed, the engaged portion is The closed state of the cover is detected by pressing the sensor lever, and when the cover is opened, the open state of the cover is detected by moving the engaged portion away from the sensor lever. Is configured to be issued, the said parts sensor lever abuts the engaged portion is a liquid-jet apparatus characterized by being made by a surface extending in the rotation axis direction of the cover.

  Hereinafter, an embodiment of the present invention will be described. In the following, first, an overall configuration of an ink jet printer (hereinafter abbreviated as “printer”) 1 as an example of an “ink jet recording apparatus” and a “liquid ejecting apparatus” according to an embodiment of the present invention will be described with reference to FIGS. The description will be given with reference. Here, FIG. 1 is an external perspective view of the printer 1, FIGS. 2A and 2B are rear views of the printer 1, and FIG. 1A is a view when the cover 49 is in a closed state. Shows a state when the cover 49 is in the open state and the ink cartridge 5 is not attached. FIG. 3 is a side sectional view of the paper conveyance path of the printer 1. Hereinafter, the upstream side (right side in FIG. 3) of the paper transport path (sub-scanning direction) is simply referred to as “upstream side”, and the downstream side (left side in FIG. 3) of the paper transport path is simply referred to as “downstream side”. I will do it.

The printer 1 is suitable for recording on recording paper (hereinafter referred to as “recording paper P”) having a relatively small size, such as a postcard or L size, as an example of “recording medium” or “jetting medium”. In addition, it is configured in a small size in consideration of ease of transportation. The printer 1 according to the present embodiment is a so-called photographic printing printer that is configured on the premise that thick recording paper having a postcard or a coat layer is used as the recording paper P.
The printer 1 includes a feeding device 2 capable of setting a plurality of stacked recording sheets P in an inclined posture at the rear part of the printer main body, and a recording sheet on which recording has been performed at the front part of the printer main body. A stacker (not shown) for stacking P is provided.

  In the center of the upper surface of the printer 1, an operation unit 4 constituted by a power button, a print setting button, and the like, and a display unit 3 for displaying the print setting contents and the current operation status are arranged. Is provided with an openable and closable battery cover 51 that covers a card slot (not shown) in which a semiconductor memory medium storing image data and the like can be mounted. That is, the printer 1 not only receives print data by connecting to an external host computer, but also reads image data directly from the semiconductor memory storing the image data, generates print data, and executes printing by itself. This is a so-called stand-alone printer that can be configured.

  As shown in FIG. 2, an opening 47 is formed on the bottom of the printer body for inserting and removing the ink cartridge 5 that forms a thin box-like body, and covers the opening 47. A cover 49 is rotatably attached to the printer 1 as viewed from the side. In the back of the opening 47, ink suction needles 6a to 6f and a waste liquid supply needle 6g are provided. The ink suction needles 6a to 6f are attached to a seal rubber of an ink supply port (not shown) provided in the ink cartridge 5 and not shown. A waste liquid supply needle 6g is punctured into the seal rubber of the ink recovery port.

  The ink cartridge 5 is integrally formed with a plurality of ink storage chambers (not shown) that store a plurality of colors of ink (six colors of black, cyan, magenta, yellow, blue, and red in this embodiment). In addition, the ink cartridge is a multi-color integrated type. In FIG. 2B, reference numeral 60 denotes a detachable lever. When the ink cartridge 5 is mounted, the detachable lever 60 is rotated after the ink cartridge 5 is inserted from the opening 47 to a certain position. As a result, the ink cartridge 5 moves to the final mounting position. Further, when the attachment / detachment lever 60 is rotated while the ink cartridge 5 is mounted, the ink cartridge 5 receives the urging force of the urging means (not shown), jumps out to the front side to a certain position, and is easily pulled out. It can be put out.

  Returning to FIG. 1, the housing constituting the external appearance of the printer 1 is composed of a plurality of members. In FIG. 1, the upper panel 42, the housing left 43, the housing right 44, and the side panel right 45 are included. ,It is shown. A hand handle 41 is attached to the housing left 43 and the housing right 44 so as to be rotatable when the printer body is viewed from the side, so that the hand handle 41 can be gripped when the printer 1 is carried. Thus, the printer 1 can be easily carried.

  Also, four rubber legs 50 are provided on the bottom surface of the printer 1 (see FIG. 2A), and the rubber legs 50 absorb shock when the printer 1 is placed on the installation surface. In FIG. 1, reference numeral 40 denotes a paper supply cover that covers the metal frame so that a metal frame (not shown) constituting the base of the printer 1 is not exposed to the outside of the apparatus. Even if it has high heat, the user cannot touch it.

  Next, the internal configuration of the printer 1 will be described with reference to FIG. The printer 1 includes a feeding device 2 that can set a plurality of recording sheets P in an inclined posture at the rear of the apparatus, similarly to an inkjet printer suitable for A4 size recording. The feeding device 2 includes a hopper 10, a feeding roller 11, an idle roller 14, a friction separating member 13, a return lever 12, and various other components than those exemplified above. The hopper 10 supports the recording paper P in an inclined posture, and is driven to swing by a cam mechanism (not shown) around the swinging fulcrum 10a so that the recording paper P is pressed against the feeding roller 11 and separated from the posture. The posture can be switched.

  The feeding roller 11 has a substantially D shape when viewed from the side, and a rubber material is wound around the outer periphery thereof. The feeding roller 11 is selectively rotated only when the paper is fed by a motor (not shown). At the time of paper feeding, the feeding roller 11 feeds the uppermost one of the recording paper P pressed against the feeding roller 11 by the arc portion to the downstream side, and when the paper feeding is finished, the downstream side conveyance drive roller In order to prevent a conveyance load from being generated during the sheet conveyance operation by the sheet 21, the drive control is performed so that the flat portion in a substantially D shape in a side view faces the friction separating member 13 as illustrated. Note that a roller indicated by reference numeral 14 is a freely rotatable idle roller, and is rotated in contact with the recording sheet P being conveyed so that the recording sheet P being conveyed does not contact the feeding roller 11 to cause a conveyance load. .

  A friction separating material 13 is provided at a position facing the feeding roller 11. The friction separating material 13 is pressed against the arc portion of the feeding roller 11 during paper feeding to form a pressure contact, whereby the uppermost recording paper P to be fed and the next order to be double fed. The subsequent recording paper P is separated. Further, a paper return lever 12 is provided at a position facing the feeding roller 11. The paper return lever 12 is provided so as to be able to swing around a swinging fulcrum 12a. During the one rotation operation of the feeding roller 11, the paper return lever 12 is temporarily set so as to open the feeding path of the recording paper P from the standby state shown in FIG. By falling and rising again as shown in FIG. 3, the next and subsequent recording sheets P about to be double fed are returned onto the hopper 10.

  The above is the feeding device 2, and a paper detector 17 including a lever 15 and a detection unit 16 is provided between the feeding roller 11 and the transport driving roller 21 on the downstream side of the feeding device 2. It has been. The lever 15 is provided so as to be swingable about the swing shaft 15, and the upper part of the lever 15 is configured to be able to contact the recording paper P to be fed. The detection unit 16 is an optical sensor. When the lower part of the lever 15 enters the detection unit 16 as shown in the figure, the light from the light emitting unit to the light receiving unit is blocked, and the recording paper P is not loaded. A passing state is detected. When the lever 15 swings with the passage of the recording paper P, the lower portion of the lever 15 is disengaged from the detecting portion 16 from the swinging shaft 15 so that the passage of the leading edge of the recording paper P can be detected. It can be done. Further, when the trailing edge of the recording paper P passes, the lower end portion of the lever 15 enters the detection unit 16 again, whereby the passage of the trailing edge of the recording paper P can be detected.

  Next, a conveyance driving roller 21 and a conveyance driven roller 22 are provided on the downstream side of the paper detector 17 (hereinafter, the roller pair is appropriately referred to as “conveyance roller”). The transport driving roller 21 is rotationally driven by a motor (not shown), and the transport driven roller 22 is pressed against the transport driving roller 21 and rotated. The recording paper P fed by the feeding roller 11 is nipped by the transport roller and transported under an ink jet recording head (hereinafter referred to as “recording head”) 26.

  A free-rotating guide roller 23 is provided at the downstream end of the transport driven roller holder 20 that pivotally supports the transport driven roller 22. The guide roller 23 is a roller for preventing the recording paper P from being lifted off the platen 28, so that the distance between the recording paper P and the recording head 14 is kept constant, so that the recording quality is reduced and the head is rubbed. To prevent.

  Next, the recording head 26 and the platen 28 are provided on the downstream side of the conveying roller so as to face each other. The recording head 26 is provided at the bottom of the carriage 25 and performs recording (printing) by ejecting (jetting) ink droplets as an example of liquid toward the recording paper P. The carriage 25 is driven in the main scanning direction by the power of a motor (not shown) while being guided in the main scanning direction by a carriage guide plate 27 extending in the main scanning direction.

  The platen 28 defines the gap between the recording paper P and the recording head 26 by supporting the recording paper P from below. A concave portion 28 a is formed on the surface of the platen 28 facing the recording head 26. This is for printing without margins on the recording paper P. When ink droplets are ejected to the edge of the recording paper P, ink droplets are ejected to the part off the recording paper P, Then, so-called borderless printing is performed by discarding into the concave portion 28a. An ink absorbing material 29 that absorbs ink droplets is disposed in the recess 28a. The ink droplets discarded in the recess 28a are discharged downward from a discharge hole (not shown), and a waste liquid tray 30 for receiving the discharged ink droplets is provided below the platen 28. A waste liquid absorber 31 is provided inside the waste liquid tray 30 to reliably hold the ink waste liquid in the waste liquid tray 30.

  On the downstream side of the recording head 26, a first discharge driving roller 36, a first discharge driven roller 37, a second discharge drive roller 38, and a second discharge driven roller 39 are provided. The first discharge drive roller 36 and the second discharge drive roller 38 are rotationally driven by a drive motor (not shown), and the first discharge driven roller 37 is driven to rotate in contact with the first discharge drive roller 36. Then, the recording paper P on which recording has been performed is discharged toward the stacker 40 (FIG. 1) by being nipped by the first discharge driving roller 36 and the first discharge driven roller 37. Note that the second discharge driving roller 38 and the second discharge driven roller 39 ensure that the rear end of the recording paper P fed from the first discharge drive roller 36 and the first discharge driven roller 37 is directed toward a stacker (not shown). It fulfills the function of dropping.

  The above is the general configuration of the printer 1, and the cover opening / closing device 7 including the cover 49 and the opening / closing sensor 55 that detects the opening / closing state of the cover 49 will be described in detail below with reference to FIGS. 4 to 7. 4 is a perspective view of the right end portion of the cover 49, FIGS. 5 and 6 are perspective views of the cover opening / closing device 7, and FIG. 6 is a side view of the cover opening / closing device 7.

  As shown in FIGS. 4, 6, and 7, rotation shafts 33 a and 33 a that form protrusions are formed on both ends of the frame 33 that forms the bottom of the printer 1 so as to face each other. The cover 49 is rotatably provided on the frame 33 by fitting the bearings 49a and 49a formed on the cover 49 to the moving shafts 33a and 33a.

  The cover 49 is provided so that a slight play is generated in the direction of the rotation axis for smooth rotation, and one side (left side as viewed from the back of the printer 1) is provided by a spring 52 shown in FIG. It is provided in the state urged by. Therefore, the backlash of the cover 49 is prevented while ensuring a smooth rotation of the cover 49.

Next, as shown in FIGS. 5 and 6, an open / close sensor 55 as an “open / close state detection unit” for detecting the open / close state of the cover 49 is provided on the left side of the cover 49 when the printer 1 is viewed from the back. Yes.
The open / close sensor 55 includes a sensor lever 56 that can be engaged with an engaged portion 49 b formed on the cover 49, and a detection unit 57 that detects the displacement of the sensor lever 56.

  As shown in FIG. 7A, the sensor lever 56 can swing around a swing axis (not shown) parallel to the rotation axis of the cover 49 (a line extending perpendicularly to the front and back direction in FIG. 7). And is urged so as to protrude toward the cover 49. In the open state of the cover 49 shown in FIG. 7B, the engaged portion 49b of the cover 49 is separated from the sensor lever 56, so that the sensor lever 56 rises to the cover 49 side, and the detecting portion 57 is the sensor. The posture of the lever 56 is detected, and a signal indicating that the cover 49 is open is sent to the control unit 62.

On the other hand, in the closed state of the cover 49 shown in FIG. 7A, the sensor lever 56 is displaced when the engaged portion 49b of the cover 49 pushes the sensor lever 56, and the detecting portion 57 detects the displacement of the sensor lever 56. Then, a signal indicating that the cover 49 is closed is sent to the control unit 62.
Here, a portion of the engaged portion 49b that engages with the sensor lever 56 is formed by a flat surface 49c as shown in FIGS. The flat surface 49c is a surface that extends in the rotation axis direction of the cover 49. When the cover 49 is closed, the sensor lever 56 is positioned substantially at the center of the flat surface 49c (the center of the cover 49 in the rotation axis direction). It is provided so that it may contact.

  This is due to the following reason. That is, as described above, the cover 49 is provided with a slight play in the direction of the rotation axis for smooth rotation operation. Therefore, when the printer 1 is subjected to an impact such as dropping, the cover 49 is temporarily provided. Moves in the direction of the rotation axis (the front and back direction in FIG. 7), the cover 49 applies a force to the sensor lever 56 in a direction perpendicular to the original swinging direction of the sensor lever 56, As a result, the sensor lever 56 may be damaged. On the other hand, if the play of the cover 49 in the direction of the rotation axis is eliminated, a smooth rotation operation cannot be performed, and a high part accuracy is required, resulting in an increase in cost.

  However, in the engaged portion 49b, the portion with which the sensor lever 56 abuts is formed by a flat surface 49c extending in the rotational axis direction of the cover 49, so that the sensor lever 56 abuts against the engaged portion 49b. Even if the cover 49 moves in the direction of the rotation axis, the engaged portion 49b can move smoothly relative to the sensor lever 56 without applying force to the sensor lever 56, and therefore the sensor lever 56 is damaged. Can be reliably prevented. Further, since it is not necessary to eliminate play in the direction of the rotation axis of the cover 49, a smooth rotation operation of the cover 49 is ensured, and it is not necessary to improve the accuracy of parts, so that the cost is not increased.

  As shown in FIGS. 6 and 7, a rib 49 d that protrudes toward the ink cartridge 5 is provided on the inner surface of the cover 49. This is because the open / close sensor 55 does not detect the closed state of the cover 49 (that is, the state in which the ink cartridge 5 is mounted) even though the ink cartridge 5 is not completely mounted (that is, in the semi-mounted state). It is for doing so.

  That is, if the ink cartridge 5 is left in a half-mounted state, the ink suction needles 6a to 6f (FIG. 2B) and the seal rubber on the ink cartridge 5 side become incompletely sealed, and ink leaks due to capillary action. There is a fear. When the ink cartridge 5 is in the semi-installed state, the rear end portion of the ink cartridge 5 is the rear end portion of the fully installed ink cartridge 5 as indicated by the solid line in FIG. It protrudes to the rear side of the printer 1 as compared to (shown).

  Therefore, by using this, the rib 49d that protrudes from the ink cartridge 5 is formed in the cover 49, so that the rib 49d is in the ink cartridge 5 when the ink cartridge 5 is in the half-mounted state as shown in FIG. The cover 49 is configured so as not to be completely closed by abutting against the rear end portion. Accordingly, the open / close sensor 55 detects the open state of the cover 49, warns the user of this fact, and prevents printing from being executed, thereby preventing a problem that the ink cartridge 5 is half-mounted. It has become.

  In the embodiment described above, the cover opening / closing device of the present invention is applied to the cover 49 that covers the opening 47 for inserting and removing the ink cartridge 5. However, the present invention is not limited to this, and the cover that covers the opening is used. As long as it is applicable, it can be applied to, for example, the battery cover 51 shown in FIG. 2 and the card slot cover 46 shown in FIG.

1 is an external perspective view of a printer according to the present invention. FIG. 2 is a rear view of the printer according to the invention. FIG. 3 is a side sectional view of a paper conveyance path of the printer according to the present invention. The perspective view of the right end part of a cover. The perspective view of a cover opening / closing apparatus. The perspective view of a cover opening / closing apparatus. The side view of a cover opening / closing apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inkjet printer, 2 Feeding device, 3 Display part, 4 Operation part, 5 Ink cartridge, 6a-6f Ink suction needle, 6g Waste liquid supply needle, 7 Cover opening / closing device, 10 Hopper, 11 Feeding roller, 12 Paper return lever , 13 Friction separator, 14 Idle roller, 15 Lever, 16 Detector, 17 Paper detector, 20 Conveyance driven roller holder, 21 Conveyance drive roller, 22 Conveyance driven roller, 23 Guide roller, 25 Carriage, 26 Recording head, 27 Carriage guide plate, 28 Platen, 29 Ink absorber, 30 Waste tray, 31 Waste absorber, 33 Frame, 36 First discharge drive roller, 37 First discharge driven roller, 38 Second discharge drive roller, 39 Second discharge driven Roller, 40 Feeder cover, 41 Handle for carrying, 42 Upper part Panel, 43 Housing left, 44 Housing right, 45 Side panel right, 46 Card slot cover, 47 Opening, 48 Storage chamber, 49 Cover body, 50 Rubber legs, 51 Battery cover, 52 Spring, 55 Open / close sensor, 56 Sensor lever 57 Detection unit 60 Removable lever 62 Control unit P Recording paper

Claims (5)

A cover that switches between a closed state that covers the opening by rotating and an open state that opens the opening; and
An open / close state detecting means for detecting an open / closed state of the cover;
The open / close state detecting means includes a sensor lever that can be engaged with an engaged portion formed on the cover;
A detection unit for detecting the displacement of the sensor lever,
When the cover is closed, the engaged portion pushes the sensor lever to detect the closed state of the cover, and when the cover is opened, the engaged portion is separated from the sensor lever to release the cover. Configured to detect open state,
A portion of the engaged portion with which the sensor lever abuts is formed by a surface extending in the rotation axis direction of the cover.
A cover opening and closing device. In Claim 1, the portion with which the sensor lever contacts in the engaged portion is formed by a flat surface.
A cover opening and closing device. In Claim 1 or 2, it has an energizing means which energizes the cover in the direction of the axis of rotation of the cover.
A cover opening and closing device. A carriage having an inkjet recording head for recording on a recording medium;
A removable ink cartridge provided independently of the carriage;
A cover for switching between a closed state for covering the opening for inserting and removing the ink cartridge by rotating and an open state for opening the opening, and an open / closed state detecting means for detecting the open / closed state of the cover are provided. The cover opening / closing device according to any one of claims 1 to 3,
An ink jet recording apparatus comprising: A carriage having a liquid jet head for recording on a jetted medium;
A detachable liquid cartridge provided independently of the carriage;
A cover for switching between a closed state for covering the opening for inserting and removing the liquid cartridge by rotation and an open state for opening the opening, and an open / closed state detecting means for detecting the open / closed state of the cover are provided. A cover opening and closing device,
The open / close state detecting means includes a sensor lever that can be engaged with an engaged portion formed on the cover;
A detection unit for detecting the displacement of the sensor lever,
When the cover is closed, the engaged portion pushes the sensor lever to detect the closed state of the cover, and when the cover is opened, the engaged portion is separated from the sensor lever to release the cover. Configured to detect open state,
A portion of the engaged portion with which the sensor lever abuts is formed by a surface extending in the rotation axis direction of the cover.
A liquid ejecting apparatus.

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