JP2018069697A - Liquid injection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prompt a user to perform appropriate work according to a state of a liquid injection device in the liquid injection device comprising a liquid storage section storing liquid and an opening/closing body covering the liquid storage section.SOLUTION: A liquid injection device comprises: a device body comprising liquid injection means injecting liquid onto a medium; a first opening/closing body opening/closing at least a part of an upper portion of the device body; a liquid storage section provided on the device body and storing the liquid supplied to the liquid injection means; a second opening/closing body covering at least a part of the liquid storage section in a closed state and enabling access to the liquid storage section in an opened state; and control means performing various kinds of control of the device body. The control means, when the second opening/closing body is opened, selects first processing or second processing according to presence/absence of a paper jam of the medium in a medium conveyance path for conveying the medium.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a liquid ejecting apparatus that ejects liquid.

An example of a liquid ejecting apparatus that ejects liquid is an ink jet printer. As the ink jet printer, there is a so-called serial type ink jet printer that includes a recording head as a liquid ejecting unit that ejects ink, which is an example of liquid, and a carriage that can move in a predetermined direction.
Still further, there are ink jet printers in which an ink storage container for storing ink is mounted on a carriage and those in which an ink storage container is provided outside the carriage. In the case where an ink container is provided outside the carriage, the ink container and the carriage (recording head) are connected by an ink supply tube.

  For example, Patent Document 1 discloses a recording apparatus that includes an ink tank (ink container) on the front side of the apparatus and a structure that covers the ink tank with a cover. Furthermore, in the recording apparatus described in Patent Document 1, the ink tank includes an injection port for replenishing ink, and is configured so that ink can be replenished by injecting the ink from a bottle containing ink. . Further, the recording apparatus described in Patent Document 1 includes a scanner unit that can be opened and closed at the top of the apparatus main body, and is configured so that ink can be injected into the ink tank by opening the scanner unit.

JP 2014-79908 A

  In general, in the inkjet printer, the user mainly performs the paper setting work in addition to the paper setting, and the paper removal work when the paper jam occurs. In the ink jet printer having the above-described configuration, the ink is further supplied to the ink tank. There is an injection work. However, the conventional ink jet printer has room for further improvement from the viewpoint of appropriately guiding the work to be performed by the user according to the state of the apparatus.

  SUMMARY An advantage of some aspects of the invention is that a liquid ejecting apparatus including a liquid container that stores a liquid and an opening / closing body that covers the liquid container is suitable for the state of the apparatus. Is to encourage the user to do

  In order to solve the above problems, a liquid ejecting apparatus according to a first aspect of the present invention opens and closes an apparatus main body including a liquid ejecting unit that ejects liquid onto a medium and at least a part of an upper portion of the apparatus main body. A first opening / closing body; a liquid storage portion provided in the apparatus main body for storing the liquid to be supplied to the liquid ejecting means; and at least a part of the liquid storage portion in a closed state, and the liquid in an open state A second opening / closing member that enables access to the housing portion; and a control unit that performs various controls of the apparatus main body, wherein the control unit conveys a medium when the second opening / closing member is opened. The first process and the second process are selected according to the presence / absence of a jam of the medium in the transport path.

  According to this aspect, when the second opening / closing body is opened, the control means selects the first process and the second process according to the presence or absence of a jam in the medium transport path for transporting the medium. Therefore, by performing an appropriate process according to the presence or absence of a medium jam when the second opening / closing body is opened, it is possible to prompt the user to perform an appropriate operation according to the state of the apparatus.

  According to a second aspect of the present invention, in the first aspect, the liquid ejecting unit is provided in a carriage that reciprocates in a predetermined direction, and the first process is a process when the jam is present, The process that prompts the user to handle the jam, and the second process is a process when the jam is not present, and is a process that moves the carriage to the home position, or a state where the carriage is stopped at the home position. It is the process which maintains.

  According to this aspect, by performing the first process, it is possible to prompt the user to perform an appropriate work according to the state of the device (the presence or absence of a jam), and the user may perform the second process. High work (access to the liquid container). Specifically, since the second process is a process of moving the carriage to the home position or a process of maintaining the carriage stopped at the home position, it is safe to inject liquid into the liquid container. Can be done.

  A third aspect of the present invention includes, in the first aspect, a carriage that includes the liquid ejecting unit and reciprocates in a predetermined direction, and a buffer tank that is connected to the liquid storage unit and a flow path member. The flow path member can be pressed through the carriage or a member engaged with the carriage when the carriage moves to the first position in the moving region, and the first processing is performed when the jam is present. And the second process is a process when the jam is not present and the carriage is moved to the first position. It is characterized by.

  According to this aspect, by performing the first process, it is possible to prompt the user to perform an appropriate work according to the state of the device (the presence or absence of a jam), and the user may perform the second process. High work (access to the liquid container). Specifically, the second process is a process of moving the carriage to the first position, that is, pressing the flow path member to block the liquid flow path between the liquid storage portion and the buffer tank. Since the process is (or narrows), the liquid can be appropriately injected into the liquid container.

  According to a fourth aspect of the present invention, in the first aspect, the liquid ejecting unit is provided in a carriage that reciprocates in a predetermined direction, and the first process is a process when the jam is present, It is a process for prompting the user to handle the jam, and the second process is a process when there is no jam, and is a process for guiding the user process to the liquid storage unit.

  According to this aspect, by performing the first process or the second process, it is possible to prompt the user to perform an appropriate operation according to the state of the apparatus.

According to a fifth aspect of the present invention, in the first aspect, the liquid ejecting unit is provided in a carriage that reciprocates in a predetermined direction, and the first process is a process when the jam is present, It is a process for prompting a user to handle the jam, and the second process is a process in the case where there is no jam, and is a process for maintaining the state of the apparatus main body.
According to this aspect, by performing the first process, it is possible to prompt the user to perform an appropriate operation according to the state of the apparatus (presence / absence of jam).

  According to a sixth aspect of the present invention, in the first aspect, the carriage includes the liquid ejecting unit and reciprocates in a predetermined direction, and the liquid detection unit detects a state in which the liquid in the liquid storage unit has reached the near end. And at least one of the first process and the second process is a process when the jam is present and the liquid in the liquid container is near-end, and at least preferentially treats the jam. It is a process that prompts the user.

  According to this aspect, at least one of the first process and the second process is a process when the jam is present and the liquid in the liquid storage unit is near-end, and at least preferentially the jam. Since the process prompts the user, the user can first prompt the user to deal with the jam having a high processing priority, so that the apparatus can be returned to the normal state more quickly, and more quickly the liquid ejection process. Can lead to the resumption of

  According to a seventh aspect of the present invention, in the first aspect, a carriage that includes the liquid ejecting means and reciprocates in a predetermined direction, and a liquid detection means that detects a state in which the liquid in the liquid storage portion has reached the near end. And at least one of the first process and the second process is a process in the case where there is no jam and the liquid in the liquid storage part is near-end, and guides the user process to the liquid storage part It is the process to perform.

  According to this aspect, at least one of the first process and the second process is a process in the case where there is no jam and the liquid in the liquid storage unit is near-end, and the user process for the liquid storage unit Therefore, it is possible to guide the user to an appropriate operation according to the state of the apparatus.

According to an eighth aspect of the present invention, in any one of the first to seventh aspects, the first opening / closing body covers at least a part of the second opening / closing body in a closed state.
According to this aspect, in the configuration in which the first opening / closing body covers at least a part of the second opening / closing body in the closed state, the same effect as any of the first to seventh correspondences described above can be obtained. Can do.

1 is an external perspective view of a printer according to the present invention. 1 is an external perspective view of a printer according to the present invention. FIG. 3 is an external perspective view of the printer when the scanner unit and the ink tank cover are opened with respect to the apparatus main body. The external appearance perspective view inside an apparatus main body. 1 is a block diagram showing a control system of a printer according to the present invention. 6 is a flowchart illustrating a first embodiment of control performed when the ink tank cover is opened. 9 is a flowchart showing a second embodiment of control performed when the ink tank cover is opened. 10 is a flowchart illustrating a third embodiment of control performed when the ink tank cover is opened. 10 is a flowchart illustrating a fourth embodiment of control performed when the ink tank cover is opened. The schematic diagram which shows the structure which presses a connection tube. The top view of an apparatus main body. The top view of an apparatus main body.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings. However, the invention is not limited to the embodiment described below, and various modifications are possible within the scope of the invention described in the claims. Assuming that these are also included in the scope of the present invention, one embodiment of the present invention will be described below.

  1 and 2 are external perspective views of the printer according to the present invention, FIG. 3 is an external perspective view of the printer when the scanner unit and the ink tank cover are opened with respect to the apparatus main body, and FIG. 4 is an apparatus main body. FIG. 5 is a block diagram showing a control system of the printer according to the present invention.

  FIGS. 6 to 9 are flowcharts showing embodiments of control performed when the ink tank cover is opened, FIG. 10 is a schematic diagram showing a configuration for pressing the connection tube, and FIGS. 11 and 12 are plan views of the apparatus main body. .

  In the XYZ coordinate system shown in each figure, the X direction is the main scanning direction (movement direction) of the carriage, that is, the width direction of the recording apparatus, the Y direction is the depth direction of the recording apparatus, and the Z direction is the apparatus height direction. Is shown. In each figure, the + X direction side is the apparatus left side, the -X direction side is the apparatus right side, the + Y direction is the apparatus front side, the -Y direction side is the apparatus back side, and the + Z axis direction side is the apparatus upper side. -Let the Z-axis direction side be a device lower side.

<<< Printer overview >>>
A printer 10 as an example of a “liquid ejecting apparatus” will be described with reference to FIGS. 1 to 4. The printer 10 includes an apparatus main body 12 and a scanner 14 as a “first opening / closing body” rotatably provided on the upper part of the apparatus main body 12.

  An operation unit 16 is provided on the front side of the apparatus body 12 in the apparatus depth direction. The operation unit 16 is provided with display means such as a liquid crystal panel and input means including a plurality of input buttons and switches. As shown in FIG. 2, the operation unit 16 is rotatably attached to the front side of the apparatus depth direction with respect to the apparatus main body 12.

  As shown in FIG. 2, when the operation unit 16 is rotated to the front side in the apparatus depth direction with respect to the apparatus main body 12, the medium discharge tray 18 stored in the apparatus main body 12 is exposed. The medium discharge tray 18 advances and retreats between a position stored in the apparatus main body 12 (solid line portion in FIG. 2) and a position pulled out from the apparatus main body 12 to the front side in the apparatus depth direction (two-dot chain line portion in FIG. 2). It is configured to be possible.

  Further, as shown in FIG. 4, a power supply unit 20 extending in the apparatus width direction that supplies power to the driving elements in the printer 10 is disposed on the back side of the operation unit 16 in the apparatus depth direction.

  In the apparatus main body 12, a medium accommodating portion 22 capable of accommodating a medium is mounted on the lower side of the medium discharge tray 18 in the apparatus height direction so that it can be inserted into and removed from the apparatus main body 12 from the front side in the apparatus depth direction.

  The scanner 14 provided on the upper part of the apparatus main body 12 is configured to be rotatable with respect to the apparatus main body 12 with the rear side in the apparatus depth direction as a rotation fulcrum, and is closed with respect to the apparatus main body 12 (FIG. 1). And FIG. 2) and an open posture (FIG. 3) can be switched.

  In addition, an ink tank portion 24 as a “liquid storage portion” that stores ink as an example of “liquid” is provided on the front side in the device depth direction of the device width direction right end portion of the device main body 12. The ink tank unit 24 includes a plurality of ink tanks (not shown) and a casing 28 that covers the plurality of ink tanks, and an ink tank cover 30 serving as a “second opening / closing body” is provided above the ink tank unit 24. Is rotatably provided.

  The ink tank portion 24 is arranged so as to be positioned below the scanner 14 in a posture in which at least a part is closed in the apparatus width direction. In this embodiment, five ink tanks are provided, and each ink tank contains black, magenta, yellow, cyan, and photo black ink. In addition, a display unit 24 a that can check the remaining amount of ink in each ink tank is provided on the front side in the apparatus depth direction of the ink tank unit 24.

  When the scanner 14 is in an open position with respect to the apparatus main body 12, the ink tank cover 30 covering the upper portion of the ink tank portion 24 is completely exposed. In a state where the ink tank cover 30 is completely exposed, the upper portion of the ink tank portion 24 can be exposed by rotating the ink tank cover 30 to the rear side of the apparatus as shown in FIG.

  Each ink tank constituting the ink tank unit 24 includes an ink injection port (not shown) for injecting ink from an ink bottle (not shown). Reference numeral 74 denotes a state in which the ink injection port is closed. The ink inlet cover can be switched between the open state and the open state.

  As shown in FIG. 4, a buffer tank 64 is provided on the back side of the apparatus on the same side (the apparatus right side) as the side where the ink tank portion 24 is provided in the apparatus width direction. A plurality of buffer tanks 64 are provided so as to correspond to each of a plurality of ink tanks provided for each ink color, and the corresponding ink tank and buffer tank 64 are connected by a connection tube 76 as a flow path member. It is connected.

The buffer tank 64 is basically in an empty state (a state in which no ink is stored) so as to allow inflow of ink from each ink tank.
For example, when the temperature around the printer 10 rises, if the ink inlet cover 74 closes the ink inlet (not shown), the air pressure in the ink tank increases, and the ink stored in each ink tank increases. Are pushed into the corresponding buffer tank 64.

  In the present embodiment, the ink storage capacity in the buffer tank 64 is set to be substantially the same as or larger than the ink storage capacity of the ink tank connected by the connection tube 76. Therefore, even if the ink stored in each ink tank flows into the buffer tank 64, the ink can be prevented or suppressed from leaking out of the buffer tank 64.

  Next, referring to FIG. 4, a moving area of the carriage 32 is provided on the back side of the ink tank section 24 in the apparatus depth direction. As an example, the carriage 32 is configured to reciprocate in the apparatus width direction within the apparatus main body 12. The drive mechanism of the carriage 32 will be described more specifically. A carriage motor 34 is provided on the back side of the carriage 32 in the apparatus depth direction.

  A drive pulley (not shown) is provided on the drive shaft of the carriage motor 34. Further, a driven pulley (not shown) is provided in the apparatus main body 12 so as to be driven to rotate with respect to the driving pulley with an interval in the apparatus width direction with respect to the driving pulley (not shown). An endless belt 38 is wound around a driving pulley (not shown) and a driven pulley (not shown), and a carriage 32 is fixed to a part of the endless belt 38. As a result, when the carriage motor 34 rotates, the endless belt 38 operates, and the carriage 32 moves in the apparatus width direction. In this embodiment, the position of the carriage 32 shown in FIG. 4 in the apparatus main body 12 is set as the home position of the carriage 32.

As shown in FIG. 4, a plurality of relay adapters 40 are attached to the carriage 32. Each relay adapter 40 is connected to the ink tank portion 24 via an ink supply tube 42 as a flow path member. The relay adapter 40 is configured to be able to supply ink to the nozzles of the recording head 44.
A recording head 44 (FIGS. 11 and 12) as a liquid ejecting unit is provided below the carriage 32. A plurality of nozzles for ejecting ink are provided on the lower surface of the recording head 44.

  Next, in FIG. 4, a medium support member 46 extending in the apparatus width direction is provided below the recording head 44. Further, a transport roller pair 48 is provided on the back side of the medium support member 46 in the apparatus depth direction.

  The medium accommodated in the medium accommodating portion 22 is fed to the conveyance roller pair 48 by a feeding unit (not shown). The conveyance roller pair 48 nips the medium and sends the medium to a region facing the recording head 44 under the control of the control unit 50 (FIG. 5). Then, the recording head 44 ejects ink to the conveyed medium under the control of the control unit 50 (FIG. 5). As a result, recording is performed on the surface of the medium facing the recording head 44. Then, the recorded medium is discharged toward the medium discharge tray 18 protruding to the front side of the apparatus main body 12 in the apparatus depth direction. This medium discharge operation is performed by a discharge roller pair 49 (FIG. 5) provided on the downstream side of the recording head 44.

  Next, the control system of the printer 1 will be described with reference to FIG. The control unit 50 serving as a control unit that performs various controls of the printer 1 records data that is data for recording, generated by a printer driver that operates on an external computer (not shown) or a printer driver that the control unit 50 includes. get. Based on the recording data and input information from the operation unit 16, the driver is a head driver 57 that is a driver of the recording head 44, and a driver of the transport motor 52 that is a motor that drives the transport roller pair 48 and the discharge roller pair 49. Control targets such as a motor driver 51, a motor driver 56 that is a driver of the carriage motor 34, and a head driver 57 that is a driver of the recording head 44 are controlled.

The control unit 50 performs necessary control based on detection states of various sensors. As an example of various sensors, FIG. 5 shows a rotary encoder 53, a linear encoder 55, a paper detection sensor 54, a cover opening / closing sensor 58, and a remaining amount detection sensor 59.
The rotary encoder 53 detects the rotation of the transport motor 52, and the control unit 50, based on the detection signal of the rotary encoder 53, rotates the rotation direction, rotation speed, and rotation amount of each roller in the transport motor 52 and eventually the paper transport path. To figure out.

  The paper detection sensor 54 is provided in the vicinity of the upstream of the pair of transport rollers 48 and detects passage of the front or rear end of the paper. Therefore, the control unit 50 can determine that a jam has occurred if the detection signal of the paper detection sensor 54 does not change even when the transport motor 52 is driven for a predetermined period.

  The linear encoder 55 detects the movement of the carriage 32, and the control unit 50 grasps the movement direction, movement amount, and movement speed of the carriage 32 based on the detection signal of the linear encoder 55.

The cover opening / closing sensor 58 is a sensor that detects the opening / closing of the ink tank cover 30 that opens and closes the upper portion of the ink tank portion 24, although the detailed structure and mounting portion are not shown, and is configured by a mechanical or optical sensor. can do. The control unit 50 can grasp whether the ink tank cover 30 is in an open state or a closed state based on a detection signal of the cover open / close sensor 58.
The remaining amount detection sensor 59 is a sensor that detects that the remaining amount of ink in each ink tank of the ink tank portion 24 has decreased to a predetermined amount (near end), although the detailed structure and illustration of the attachment site are omitted. For example, it can be composed of an optical sensor.
The control unit 50 controls various components in addition to the components described above and receives detection signals from various sensors, but description thereof will be omitted.
The overall configuration of the printer 1 has been described above. Hereinafter, control performed by the control unit 50, more specifically, control when the ink tank cover 30 is opened will be described with reference to FIG.

■■■ First Example ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
The first embodiment will be described with reference to FIG.
When detecting that the ink tank cover 30 has been opened (Yes in Step S101), the control unit 50 checks whether or not a paper jam has been detected in that state (Step S102).

  When there is a paper jam when the ink tank cover 30 is opened (Yes in step S102), the control unit 50 displays a jam processing announcement on the display means of the operation unit 16 (step S103). This jam processing announcement is, for example, an error message display such as “Paper jammed inside. Please remove the paper and press the [OK] button”.

Next, when a jam release button ([OK] button in the above example) is pressed by the user in response to the jam processing announcement, that is, when it can be determined that the jam processing has been performed (Yes in step S104), the control unit 50 Displays an ink tank cover confirmation announcement on the display means of the operation unit 16 (step S107). This ink tank cover confirmation announcement is, for example, a confirmation message such as “The ink tank cover is open”.
When the control unit 50 detects that the ink tank cover 30 is closed (Yes in step S108), the control unit 50 restarts the process before the ink tank cover opening detection (step S109).

On the other hand, if there is no paper jam (No in step S102), it is confirmed whether the carriage 32 is located at the home position (HP) (step S105). If it is not located at the home position (No in step S105). Then, the carriage 32 is moved to the home position (step S106). If the carriage 32 has already stopped at the home position (Yes in step S105), the carriage 32 is stopped at the home position as it is.
The subsequent steps are the same as those after step S107 described above.

As described above, according to the present embodiment, when the ink tank cover 30 is opened, the control unit 50 selects the first process and the second process according to the presence or absence of a paper jam in the paper transport path.
More specifically, the first processing is processing for prompting the user to perform paper jam processing (step S103), and the second processing is processing when there is no paper jam, and the carriage 32 is moved to the home. This is a process of moving to the position (step S106) or a process of maintaining the carriage 32 stopped at the home position.

Therefore, according to the present embodiment, by performing appropriate processing according to the presence or absence of paper jam when the ink tank cover 30 is opened, it is possible to prompt the user to perform appropriate work according to the state of the apparatus.
More specifically, by performing the first process, it is possible to prompt the user to perform an appropriate work according to the state of the apparatus (in the above example, the presence or absence of paper jam), and by performing the second process. It is possible to prepare for work that is likely to be performed by the user (in the above example, access to the ink tank unit 24, for example, ink replenishment work). As a result, ink can be safely injected into the ink tank 24.

In this embodiment, when there is no paper jam when the ink tank cover 30 is opened (No in step S102), the carriage 32 is moved to the home position, but this process is not performed and the state of the apparatus is maintained. You may process as you do.
In this embodiment, or in other embodiments described later, the “process” performed by the control unit 50 is not limited to the result of the process that can be clearly confirmed by the user with the five senses. For example, the term “waiting time” set in the program process is waited for, or a process for exiting from a specific program process is used to mean that the result of the process cannot be confirmed by the user's five senses.

■■■ Second Example ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
The second embodiment will be described with reference to FIG.
When detecting that the ink tank cover 30 has been opened (Yes in Step S201), the control unit 50 checks whether or not a paper jam has been detected in that state (Step S202).

  When there is a paper jam when the ink tank cover 30 is opened (Yes in step S202), the control unit 50 displays a jam processing announcement on the display means of the operation unit 16 (step S203). This jam processing announcement can be made, for example, with an error message display such as “Paper jammed inside. Please remove the paper and press the [OK] button”.

Next, when the user presses a jam release button ([OK] button in the above example) for the jam processing announcement, that is, when it can be determined that the jam processing has been performed (Yes in step S204), the control unit 50 Displays an ink tank cover confirmation announcement on the display means of the operation unit 16 (step S206). This ink tank cover confirmation announcement is, for example, a confirmation message such as “The ink tank cover is open”.
When the control unit 50 detects that the ink tank cover 30 is closed (Yes in step S207), the control unit 50 resumes the process before the ink tank cover open detection (step S208).

On the other hand, if there is no paper jam (No in step S202), the carriage 32 is moved to the first position (step S205). Thereafter, step S206 and subsequent steps are executed in the same manner as described above.
Here, the first position of the carriage 32 will be described. The buffer tank 64 and the ink tank unit 24 described with reference to FIG. 4 are arranged with the moving region of the carriage 32 in the apparatus depth direction (Y direction), and both are connected tubes 76 as flow path members. Connected by.

As shown in FIG. 10, a cam follower member 66 is provided on the connection tube 76 at a position near the home position of the carriage 32. The cam follower member 66 is provided so as to be displaceable in the vertical direction (Z-axis direction) by a guide member (not shown), and an inclined surface 66 a is formed on the upper surface of the cam follower member 66.
On the other hand, a pressing rod 68 is provided on the cam follower member 66. The pressing rod 68 is provided so as to be displaceable in the moving direction (X-axis direction) of the carriage 32 and is biased in a direction away from the cam follower member 66 (leftward in FIG. 10) by a biasing means (not shown). .

The pressing rod 66 is provided at a position where it can engage with the carriage 32, and is pushed by the carriage 32 as the carriage 32 moves, and is displaced in a direction in contact with the cam follower member 66. At this time, the distal end portion of the pressing rod 66 presses against the inclined surface 66a of the cam follower member 66, thereby pushing down the cam follower member 66 downward as shown by the change from the upper diagram to the lower diagram in FIG. It can be done.
When the carriage 32 pushes down the cam follower member 66 via the pressing rod 66, the connection tube 76 is pressed between the cam follower member 66 and the mounting member 67 and is crushed, and the buffer tank 64 and the ink tank unit 24 are separated. The ink flow path between them can be blocked.

In the present embodiment, as described above, the position of the carriage 32 when the ink flow path between the buffer tank 64 and the ink tank portion 24 is blocked is defined as the first position. 4 is set further to the right side (right side in FIG. 4) of the home position of the carriage 32 shown in FIG.
In this embodiment, the pressing rod 68 is provided separately from the carriage 32, but the carriage 32 itself presses against the inclined surface 66 a of the cam follower member 66 and pushes down the cam follower member 66. Also good. Alternatively, the carriage 32 itself may be configured to directly crush the connection tube 76.

As described above, according to the present embodiment, when the ink tank cover 30 is opened, the control unit 50 selects the first process and the second process according to the presence or absence of a paper jam in the paper transport path.
More specifically, the first process is a process for prompting the user to perform a paper jam process (step S03), and the second process is a process for moving the carriage 32 to the first position (step S205). That is, the ink flow path between the buffer tank 64 and the ink tank unit 24 is blocked.

  Therefore, according to the present embodiment, by performing the first process, it is possible to prompt the user to perform an appropriate work according to the state of the apparatus (in the above example, the presence or absence of paper jam), and the second process is performed. As a result, the ink replenishment work to the ink tank portion 24 can be appropriately performed.

■■■ Third Example ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
A third embodiment will be described with reference to FIG.
When detecting that the ink tank cover 30 has been opened (Yes in Step S301), the control unit 50 checks whether or not a paper jam has been detected in that state (Step S302).

  When there is a paper jam when the ink tank cover 30 is opened (Yes in step S302), the control unit 50 displays a jam processing announcement on the display means of the operation unit 16 (step S303). This jam processing announcement can be made, for example, with an error message display such as “Paper jammed inside. Please remove the paper and press the [OK] button”.

Next, when the jam release button (in the above example, the [OK] button) is pressed by the user in response to the jam processing announcement, that is, when it can be determined that the jam processing has been performed (Yes in step S304), the control unit 50 Displays an ink tank cover confirmation announcement on the display means of the operation unit 16 (step S306). This ink tank cover confirmation announcement is, for example, a confirmation message such as “The ink tank cover is open”.
When the control unit 50 detects that the ink tank cover 30 is closed (Yes in step S307), the control unit 50 resumes the process before the ink tank cover opening detection (step S308).

On the other hand, when there is no paper jam (No in step S302), the carriage 32 is moved to the second position (step S305). After that, step S306 and subsequent steps are executed as described above.
Here, the second position of the carriage 32 will be described. As shown in FIGS. 11 and 12, the upper part of the apparatus main body 12 (the part that is opened and closed by the scanner 14) is constituted by an upper housing 13. The upper housing 13 has an opening 13a extending in the moving direction (X direction) of the carriage 32, and it is possible to remove jammed paper through the opening 13a when, for example, a paper jam occurs. It has become.

On the other hand, a protrusion 32b that protrudes to the home position side (right side in FIGS. 11 and 12) is provided on the carriage 32, and a display region 33 is provided on the upper surface of the protrusion 32b. .
Various displays can be performed on the display area 33. In this embodiment, for example, a display for guiding a method of replenishing ink to the ink tank unit 24 is performed.

  When the carriage 32 is located at the home position (in the state shown in FIG. 11), the display area 33 is in a position hidden behind the upper casing 13 so that access to the unnecessary ink tank 24 is minimized. be able to.

  The second position of the carriage 32 is a position where the display area 33 is not hidden by the upper housing 13 as shown in FIG. If there is no paper jam (No in step S302), the controller 50 moves the carriage 32 to such a second position (step S305). As a result, the user can confirm a method of refilling the ink tank 24 with ink.

As described above, according to the present embodiment, when the ink tank cover 30 is opened, the control unit 50 selects the first process and the second process according to the presence or absence of a paper jam in the paper transport path.
More specifically, the first process is a process when there is a paper jam, and is a process for prompting the user to perform a paper jam process (step S303), and the second process has no paper jam. This is a process for guiding the user process for the ink tank unit 24 as the liquid storage unit (step S305).

  Therefore, according to the present embodiment, by performing the first process, it is possible to prompt the user to perform an appropriate work according to the state of the apparatus (in the above example, the presence or absence of paper jam), and the second process is performed. As a result, the ink replenishment work to the ink tank portion 24 can be appropriately performed.

  In this embodiment, the display area 33 is a so-called label display, and the display contents cannot be changed. However, for example, the display area 33 may be configured by a liquid crystal panel or the like so that the display contents can be changed. In that case, under the control of the control unit 50, an appropriate display according to the apparatus state can be obtained.

■■■ Fourth Example ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
The fourth embodiment will be described with reference to FIG.
When the control unit 50 detects that the ink tank cover 30 has been opened (Yes in step S501), the control unit 50 determines whether or not the ink near end has been reached (step S502).
Here, as described above, the ink near end in this embodiment means a state in which the ink in the ink tank portion 24 is low, and can be detected by the remaining amount detection sensor 59 (FIG. 5). The remaining amount detection sensor 59 is provided for each ink color.

  If one of the inks of the plurality of colors is ink near-end (Yes in step S502), the control unit 50 sets a flag (FLG) indicating ink near-end to “1” and all the inks are not ink near-end. (No in step S502), the flag (FLG) indicating the ink near end is set to “0”.

Next, the control unit 50 confirms whether or not a paper jam has been detected (step S503). If there is a paper jam (Yes in step S503), a jam processing announcement is displayed on the display means of the operation unit 16 (step S504). That is, even if it is an ink near end, the alert regarding the ink near end is not performed first, and the user is preferentially prompted to perform jam processing.
This jam processing announcement is an error message display such as “Paper jammed inside. Please remove the paper and press the [OK] button”.

  Next, when a jam release button ([OK] button in the above example) is pressed by the user in response to the jam processing announcement, that is, when it can be determined that the jam processing has been performed (Yes in step S505), the control unit 50 Confirms the ink near end flag (step S506), and if it is “1”, that is, if at least one of the plurality of colors of ink is ink near end (Yes in step S506), the ink replenishment guidance display is displayed. The information is displayed on the display means of the operation unit 16 (step S507). For example, if the black ink is in the near-end state, this ink replenishment guidance display is a guidance message such as “Black ink is low. Check the remaining amount of ink and replenish.”

When the control unit 50 detects that the ink tank cover 30 is closed (Yes in step S508), the control unit 50 resumes the process before the ink tank cover opening detection (step S509).
If the ink near-end flag is not “1”, or if all the inks of a plurality of colors are not near-end (No in step S506), the ink replenishment guidance display in step S507 is not performed, and step S508 and subsequent steps are executed.
If there is no paper jam (No in step S503), step S506 and subsequent steps are executed.

As described above, according to the present embodiment, when the ink tank cover 30 is opened, the control unit 50 selects the first process and the second process according to the presence or absence of a paper jam in the paper transport path.
More specifically, at least one of the first processing and the second processing is processing when there is paper jam and ink near end, and processing that prompts the user to preferentially perform paper jam processing (step) S504).

  Therefore, according to the present embodiment, by first prompting the user to process a paper jam having a high processing priority, the apparatus can be returned to a normal state more quickly, and as a result, the recording process can be resumed more quickly. Can be connected.

DESCRIPTION OF SYMBOLS 10 ... Printer, 12 ... Apparatus main body, 13 ... Upper housing | casing, 13a ... Opening part, 14 ... Scanner, 16 ... Operation part, 18 ... Medium discharge tray, 20 ... Power supply part, 22 ... Medium storage part, 24 ... Ink tank , 24a ... display unit, 28 ... housing, 30 ... ink tank cover, 32 ... carriage, 32b ... projection, 33 ... display area, 34 ... carriage motor, 38 ... endless belt, 40 ... relay adapter, 42 ... ink Supply tube, 44 ... recording head, 46 ... media support member, 48 ... conveying roller pair, 50 ... control unit, 51 ... motor driver, 52 ... conveying motor, 53 ... rotary encoder, 54 ... paper detection sensor, 55 ... linear encoder 56 ... Motor driver, 57 ... Head driver, 58 ... Cover opening / closing sensor, 64 ... Buffer tank, 6 ... cam follower member, 66a ... inclined surface, 67 ... mounting member 68 ... pressing rod 74 ... ink inlet cover, 76 ... connecting tube

Claims (8)

An apparatus main body comprising a liquid ejecting means for ejecting a liquid onto a medium;
A first opening / closing body for opening / closing at least a part of an upper portion of the apparatus body;
A liquid storage section provided in the apparatus main body for storing a liquid to be supplied to the liquid ejecting means;
A second opening / closing body that covers at least a part of the liquid container in a closed state and allows access to the liquid container in an open state;
Control means for performing various controls of the apparatus main body,
The control means selects the first process and the second process according to the presence or absence of a jam of the medium in the medium transport path for transporting the medium when the second opening / closing body is opened.
A liquid ejecting apparatus. The liquid ejecting apparatus according to claim 1, wherein the liquid ejecting unit is provided in a carriage that reciprocates in a predetermined direction.
The first process is a process in the case where there is the jam, and is a process for prompting the user to handle the jam.
The second process is a process when there is no jam, and is a process for moving the carriage to the home position, or a process for maintaining the carriage stopped at the home position.
A liquid ejecting apparatus. The liquid ejecting apparatus according to claim 1, wherein the carriage includes the liquid ejecting unit and reciprocates in a predetermined direction;
A buffer tank connected by the liquid container and the flow path member,
The flow path member can be pressed through the carriage or a member engaged with the carriage when the carriage moves to the first position in the movement region.
The first process is a process in the case where there is the jam, and is a process for prompting the user to handle the jam.
The second process is a process when the jam is not present, and is a process of moving the carriage to the first position.
A liquid ejecting apparatus. The liquid ejecting apparatus according to claim 1, wherein the liquid ejecting unit is provided in a carriage that reciprocates in a predetermined direction.
The first process is a process in the case where there is the jam, and is a process for prompting the user to handle the jam.
The second process is a process in the case where there is no jam, and is a process for guiding a user process to the liquid container.
A liquid ejecting apparatus. The liquid ejecting apparatus according to claim 1, wherein the liquid ejecting unit is provided in a carriage that reciprocates in a predetermined direction.
The first process is a process in the case where there is the jam, and is a process for prompting the user to handle the jam.
The second process is a process when there is no jam, and is a process for maintaining the state of the apparatus body.
A liquid ejecting apparatus. The liquid ejecting apparatus according to claim 1, wherein the carriage includes the liquid ejecting unit and reciprocates in a predetermined direction;
A liquid detection means for detecting a state in which the liquid in the liquid storage portion has reached the near end, and
At least one of the first process and the second process is a process when the jam is present and the liquid in the liquid container is near-end, and at least preferentially prompts the user to handle the jam Is,
A liquid ejecting apparatus. The liquid ejecting apparatus according to claim 1, wherein the carriage includes the liquid ejecting unit and reciprocates in a predetermined direction;
A liquid detection means for detecting a state in which the liquid in the liquid storage portion has reached the near end, and
At least one of the first process and the second process is a process in the case where there is no jam and the liquid in the liquid container is near-end, and is a process for guiding the user process to the liquid container. ,
A liquid ejecting apparatus. The liquid ejecting apparatus according to any one of claims 1 to 7, wherein the first opening / closing body covers at least a part of the second opening / closing body in a closed state.
A liquid ejecting apparatus.

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