JPH07290802A - Tape printer - Google Patents

Abstract

(57) [Summary] [Purpose] Opening and closing the cassette cover and moving the print head or platen back and forth can be done in one operation.
To provide a tape printer which has improved usability and reduced the possibility of erroneous operation. [Structure] An upper tongue piece 33 and a lower tongue piece 32 are provided at positions close to a hinge portion 30 of a cassette cover 29. The thermal head of the platen roller 16 and the pressing roller 17 and the lever 22 for pressing and releasing the tape feeding roller are located between the tongue pieces 33 and 32. After attaching the tape cassette 3 to the holding portion 4, the cassette cover 29
The upper tongue piece 33 pushes down the lever 22 to bring both rollers 16 and 17 into a pressed state. When removing the tape cassette 3, when the cassette cover 29 is opened, the lower tongue piece 32 pushes up the lever 22 and both rollers 1
6 and 17 are opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape printer for printing on a tape-shaped print medium, and more particularly to a print head for printing on a tape in association with the opening / closing operation of a cassette cover covering a tape cassette in a housed state. Also, the present invention relates to a tape printer in which the ease of use is improved by adopting a tape cassette housing portion having a structure in which a platen for feeding a tape is moved in and out.

[0002]

2. Description of the Related Art Conventionally, a tape printer capable of printing on a printing tape which is a long print medium while displaying a text created by inputting characters or the like from an input means such as a keyboard on a display. Various proposals have been made. In such a tape printer, generally, a tape is supplied from a tape cassette in which the print tape is wound around a spool together with an ink ribbon and a backing tape and housed in a cassette having a predetermined shape.

In the tape cassette housing portion of the tape printer, a print head for printing on the tape and a platen for feeding and driving the tape are provided. At the time of printing, the platen presses the print tape against the print head and the text is printed. Is printed and ejected as a printed tape. Here, when the tape cassette is detached for replacement, the press of the print head and the platen on the print tape must be released, so the print head and the platen must be retracted from the print tape pressing position. For this reason,
At least one of the print head and the platen is movable, and a release member for moving the pressing position and the retracted position is provided. Further, the tape cassette housing portion is provided with a cassette cover for covering the housed tape cassette, which is closed during printing to prevent foreign matter from entering from the outside.

In such a conventional tape printer, the opening / closing operation of the cassette cover and the withdrawal operation of the print head and the platen are independent of each other, and each of them is provided with an operating lever or button. Some of them had a relationship between these two operations, but when the operation of opening the cassette cover was performed, the print head and platen were moved to the retracted position (hereinafter referred to as the "release position"). It was only a one-way relationship that was allowed to occur (Japanese Utility Model Publication No. 3-6966).

[0005]

However, in this type of tape printer, the tape cassette is frequently attached and detached. This is because there is a case where the type of the printing tape to be used is changed as well as a case where the printing tape built in the tape cassette is used up and printing is continued by exchanging with a new tape cassette. That is,
There are various types of printing tapes such as tape width, tape type (laminating tape, transfer tape, etc.), ground color, printing color, etc. Only one kind of printing tape is loaded in one tape cassette. Therefore, when changing the type of printing tape used, the tape cassette must be removed.

Therefore, the print head and the platen are released, the cassette cover is opened, the tape cassette is removed, a new tape cassette is placed, the cassette cover is closed, and the print head and the platen are pressed (hereinafter, referred to as a pressing position).
It was necessary to frequently perform the complicated operation of moving to the "set position"). In particular, actual fair 3-6966
In a tape printing device having a tape cassette housing portion provided on the back side as described in Japanese Patent Publication, there are also operation levers or buttons on the back side for opening and closing the cover, placing the print head and the platen, and operating the tape printing device. It had to be turned over one by one, which was complicated.

On the other hand, if the user does not know or makes a mistake in this procedure, he or she tries to pry open the cassette cover without releasing the print head and platen, or mounts a new tape cassette and closes the cassette cover. After that, the print command was issued without setting the print head and the platen, which sometimes caused a print error. In the above-mentioned tape printer disclosed in Japanese Utility Model Publication No. 3-6966, the print head and the platen are interlocked and released only when the cassette cover is opened, but when the cassette cover is closed. It was not possible to eliminate the case where a print command was erroneously issued without being linked and an error occurred.

The present invention has been made to solve the above-mentioned conventional problems. When the opening / closing operation of the cassette cover and the retracting / moving operation of the print head and the platen are associated with each other in the opening / closing direction, the cassette cover is closed. Along with this, the print head and the platen are set, and when the cassette cover is opened even when the print head and the platen are set, the print head and the platen are released accordingly and the cassette cover is opened. Therefore, it is an object of the present invention to provide a tape printing apparatus that improves usability and reduces the possibility of erroneous operation.

[0009]

In order to achieve the above object, a tape printer according to the present invention comprises a cassette holder for detachably holding a tape cassette containing a printing tape, and printing on the printing tape. In a tape printer having a print head and a platen roller that presses a print tape against the print head, while holding at least one of the platen roller and the print head, the platen roller or the print head approaches the other. A holder movable between a set position and a release position separated from each other, a closed state and an open state can be switched, and in the closed state, a cassette cover for covering the tape cassette held by the cassette holding portion, and a pushing position. It can be switched between the pull-out position and the pull-out position and is linked with the cassette cover to close the cassette cover. When the lever member is in the pushing position, the lever member is in the pushing position, and the lever member is in the pulling position when the cassette cover is in the open state. Has a release rod with the holder at the release position when is in the pull-out position.

Further, in the tape printer of the present invention, an upper tongue piece formed on the cassette cover, which switches the cassette cover from the open state to the closed state, pushes the lever member to switch the pulling position to the pushing position. And a lower tongue formed on the cassette cover, which pushes the lever member to switch from the pushing position to the pulling position when the cassette cover is switched from the closed state to the open state.

In the tape printer of the present invention, the lower lever formed on the lever member, the upper lever formed on the lever member, and the cassette cover formed on the cassette cover are closed from the open state. When switching to the state, the lower lever is pressed to switch the lever member from the pull-out position to the push-in position, and when the cassette cover is switched from the closed state to the open state, the upper lever is pushed out to pull out the lever member from the push-in position. It is characterized in that it has a protrusion that is switched to a position. Further, in the tape printer of the present invention, it is the platen roller that is held by the holder.

[0012]

In the tape printer of the present invention having the above structure, when the tape cassette is mounted on the cassette holding portion and the cassette cover is closed to cover the tape cassette, the lever member interlocked with the cassette cover is set to the pushing position. It At this time, the movement of the lever member is transmitted to the holder via the release rod. As a result, the holder moves to the set position, one of the platen roller and the print head approaches the other, and the tape printer becomes ready to print on the printing tape. When the cassette cover is opened, the lever member interlocked with the cassette cover is set to the pull-out position. At this time, the movement of the lever member is transmitted to the holder via the release rod, and the holder moves to the release position. That is, one of the platen roller and the print head is separated from the other, and the tape cassette can be taken out for tape printing.

Further, in the tape printer according to the present invention, when the cassette cover is closed, the upper tongue formed on the cassette cover presses the lever member to switch the pulling position to the pushing position. When the cassette cover is opened, the lower tongue piece formed on the cassette cover pushes the lever member to switch the pushing position to the pulling position. Alternatively, in the tape printer of the present invention, when the cassette cover is closed, the protrusion formed on the cassette cover pushes the lower lever formed on the lever member to push the lever member from the pull-out position to the push-in position. Switch to. When the cassette cover is opened, the protrusion pushes out the upper lever formed on the lever member to switch the lever member from the pushing position to the pulling position.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a tape printer embodying the present invention will be described below with reference to the drawings. First, the overall configuration of the tape printer 1 will be described with reference to FIG. FIG. 7 is a perspective view of the tape printer 1 as seen from the back side with the cassette cover removed. At the rear of the back surface of the tape printer 1, a holding portion 4 for mounting a tape cassette 3 in which a printing tape 9 is housed in a cassette case having a predetermined shape is formed.
A ribbon winding cam 5 for winding a used ink ribbon 10 therein and a tape feed roller cam 6 for feeding and driving a printed printing tape 9 are arranged. In addition to this, a thermal head 7 for printing on a printing tape is arranged in the holding portion 4 so as to be positioned in the opening 8 when the tape cassette 3 is mounted.

The holding portion 4 is originally covered with a cassette cover that can be opened and closed. The lever 22 near the holding portion 4 is used to open and close the lever 22 and also to set and release the roller holder, which will be described later. Incidentally, in FIG. 7, on the surface side (not shown) of the tape printer 1, a keyboard for inputting various characters and commands, a liquid crystal display for displaying the contents of text created by inputting characters from the keyboard, and the like, tape printing Various mechanisms necessary for operating the device 1 are arranged.

The internal structure of the tape cassette 3 is shown in FIG. 8 by taking a laminated tape cassette as an example. 8 shows the internal structure of the tape cassette 3 as well as the thermal head 7 and the roller holder 18 which are provided in the holding portion 4 and are a part of the printing mechanism of the tape printer 1 for the sake of explanation.

The tape cassette 3 is provided with a printing tape 9 having a predetermined width made of a transparent film, an ink ribbon 10 whose surface is coated with ink transferred to the printing tape 9, and a back surface of the printing tape 9 on which printing is performed. The printing tape 9 and the double-sided tape 14 having the same width, which are attached to each other, are wound around the supply spools rotatably mounted in a roll shape. And at the position sandwiched between these,
A used ribbon take-up spool 12 for taking up the ink ribbon 10 after printing is provided. Furthermore, inside the tape cassette 3 near its opening 8,
A tape feed roller 15 is built in for ejecting the printed printing tape 9 to the outside of the tape cassette 3 and bonding the double-sided tape 14 to the back surface of the printed printing tape 9.

When the tape cassette 3 is attached to the holding portion 4 of the tape printer 1, the ribbon winding cam 5 of the holding portion 4 is attached to the used ribbon winding spool 12 of the tape cassette 3.
The tape feed roller cam 6 of the holding unit 4 is the tape cassette 3
To the tape feed roller 15 of FIG. During printing, the used ribbon take-up spool 12 and the tape feed roller 15 of the tape cassette 3 are rotationally driven. As a result, the print tape 9 and the ink ribbon 10 are pulled out from the respective supply spools, overlapped and sent to the thermal head 7, and predetermined printing is performed. And
The used ink ribbon 10 is separated from the printed printing tape 9 and wound up on the used ribbon winding spool 12. On the other hand, the supplied double-sided tape 14 is attached to the printed printing tape 9 and is discharged to the outside by the tape feed roller 15.

Next, a mechanism for pressing the print tape 9 against the thermal head 7 during printing will be described. As described above, FIG.
The thermal head 7 arranged in the middle holding portion 4 is located in the opening 8 when the tape cassette 3 is mounted. A platen roller 16 is arranged at a position facing the thermal head 7 with the print tape 9 interposed therebetween. A pressing roller 17 is arranged at a position facing the tape feeding roller 15 of the tape cassette 3. The platen roller 16 and the pressing roller 17 are rotatably attached to a roller holder 18, and the roller holder 18 is rotatably attached to a holder shaft 19. By the rotation of the roller holder 18, the platen roller 16 and the pressing roller 17 are set at a set position (solid line) where the platen roller 16 and the pressing roller 17 are pressed against the thermal head 7 and the tape feed roller 15, or a release which is not pressed against the thermal head 7 and the tape feed roller 15. It is held at any of the positions (two-dot chain line).

Next, a mechanism for pressing and releasing the platen roller 16 and the pressing roller 17 and opening and closing the cassette cover that covers the holding portion 4 with the lever 22 will be described with reference to FIG. FIG. 1 is a perspective view showing a cassette cover 29 that covers the holding unit 4 and a printing mechanism provided in the holding unit 4.

A cassette cover 29 in FIG. 1 covers the holding portion 4 so as to be openable and closable, and is attached to the main body of the tape printer 1 by the hinge portions 30 and 30.
The holder 4 is opened and closed by rotating about 30. An engagement piece 31 is provided at the tip of the cassette cover 29. The engaging piece 31 engages with an engaging portion (not shown) provided on the main body side of the tape printer 1 to hold the cassette cover 29 in a closed state. Since the engagement piece 31 has elasticity, the engagement is released and the cassette cover 29 is opened when the operator performs a predetermined operation. On the other hand, an upper tongue piece 33 and a lower tongue piece 32 are provided at positions close to the hinge portion 30 of the cassette cover 29. The lever 22 described above is located between the upper tongue piece 33 and the lower tongue piece 32.

A printing mechanism is arranged in the holding section 4 covered by the cassette cover 29. The printing mechanism of the tape printer 1 is configured such that a roller holder 18 holding a platen roller 16 and a pressing roller 17 is rotatably attached to a frame 20 fixed to the tape printer 1. A holder shaft 19 is fixedly provided on the frame 20, and the roller holder 18 is rotatable around the holder shaft 19 as described above. When it moves as shown by an arrow C, it becomes the release position, and the platen roller 16 and the pressing roller 17 are moved to the thermal head 7 and the tape feeding roller 1.
Away from 5. When it moves in the direction opposite to the arrow C, it reaches the set position, and the platen roller 16 and the pressing roller 17 are pressed against the thermal head 7 and the tape feed roller 15 while sandwiching the printing tape 9 of the tape cassette 3.

Further, the roller holder 18 is formed with a slide groove 26 into which a fitting portion 27 of a roller release rod 25 described later is slidably fitted. Frame 20
A horizontal lever shaft 21 is provided separately from the holder shaft 19. The lever 22 is the lever shaft 21.
Is rotatably attached to the cassette cover 29 in the vertical direction and is located between the upper tongue piece 33 and the lower tongue piece 32 of the cassette cover 29.

FIG. 2 is a perspective view of the printing mechanism as seen from the opposite side. The lever 22 has an end portion 2 below the lever shaft 21.
4 is extended. A roller release rod 25 can move in a substantially horizontal direction within the frame 20 (arrow B in FIG. 1).
). The end 24 of the lever 22 and the roller release rod 25 are rotatably coupled to each other, and when the end 24 moves as the lever 22 is operated,
The roller release rod 25 also moves in conjunction with this.
A fitting portion 27 is provided at the rear end of the roller release rod 25 (see FIG. 1), and the fitting portion 27 is provided in the roller holder 1.
8 is slidably fitted in the slide groove 26. Further, in the frame 20, the holder shaft 19 is provided with a toggle spring 2
8 is attached to urge the roller holder 18 toward the release position.

When the lever 22 is pushed down and the roller release rod 25 moves in the direction opposite to the arrow B in FIG.
7 presses the roller holder 18, and the roller holder 18 rotates in the direction opposite to the arrow C to the set position. Lever 2
When 2 is pulled up and the roller release rod 25 moves in the direction of arrow B, the roller holder 18 is moved to the release position by the urging of the toggle spring 28.

A tape printer 1 having such a printing mechanism
When using the tape cassette 3, the tape cassette 3 is attached to the holding portion 4. Then, the cassette cover 29 is pressed to engage the engagement piece 31 with the main body of the tape printing apparatus 1 to bring it into the closed state. At this time, the printing mechanism operates as follows. That is, as the cassette cover 29 is closed, the upper tongue piece 33 of the cassette cover 29 pushes down the lever 22 located between the upper tongue piece 33 and the lower tongue piece 32. Therefore, as described above, the roller release rod 25 moves in the direction opposite to the arrow B in FIG. 1 in association with the movement of the lever 22, and the roller holder 18 is pressed by the fitting portion 27 to move in the direction opposite to the arrow C. Turn to the set position. Therefore, when the cassette cover 29 is closed, the roller holder 18 is always in the set position, and printing is possible without any special setting operation.

When printing is performed and the tape cassette 3 is taken out, no special release operation is performed.
The cassette cover 29 may be opened by directly placing a finger on the cassette cover 29 and pulling it up. At this time, the lower tongue piece 32 of the cassette cover 29 pushes up the lever 22. Therefore, the roller release rod 25 moves in the direction of arrow B in FIG.
Is released from the pressure, and is urged by the toggle spring 28 to move in the direction of arrow C to the release position. Therefore, as soon as the cassette cover 29 is opened, the tape cassette 3 is ready to be taken out. That is, the object can be achieved by one operation both when the tape cassette 3 is attached and when it is taken out.

Here, instead of pressing or pulling up the cassette cover 29, the roller holder 18 can be set to the set position or the release position by pushing down or pulling up the lever 22 itself with a finger.
In this case, when the lever 22 is pushed down, the lower tongue piece 32 of the cassette cover 29 is pushed down by the lever 22, so that the cassette cover 29 is closed. Also,
When pulling up the lever 22, the upper tongue piece 33 of the cassette cover 29 is pushed up, so that the cassette cover 29
Is opened.

Next, a second embodiment of the present invention will be described. This embodiment is the same as the first embodiment except for the shape of the engaging portion between the cassette cover and the lever, so only the differences will be described. FIG. 3 is a perspective view showing the cassette cover and the printing mechanism in this embodiment. The lever 22 in FIG. 1 is the upper lever 34 in FIG.
And the lower lever 23. Of course, the upper lever 34 and the lower lever 23 are integral and move together. On the other hand, the cassette cover 29A has an upper tongue piece 33.
Instead of providing the lower tongue piece 32, one tongue piece 35 is provided. The tongue piece 35 includes the upper lever 34 and the lower lever 2
Located between 3 and. FIG. 4 shows a perspective view of the printing mechanism as seen from the opposite side. Below the upper lever 34 and the lower lever 23, as in the case of the first embodiment shown in FIG. 2, an end portion 24 is extended and connected to the roller holder 18 via a roller release rod 25.

The second embodiment operates as follows. As the cassette cover 29A is closed, the tongue piece 35 of the cassette cover 29A pushes down the lower lever 23. Therefore, the lower lever 23 and the upper lever 34 integral therewith move in the direction opposite to the arrow A in FIG.
With this movement, the roller release rod 25 moves in the direction opposite to the arrow B in FIG. 3 as in the case of the first embodiment, the roller holder 18 is pressed by the fitting portion 27, and moves in the direction opposite to the arrow C. Turn to the set position. Therefore, when the cassette cover 29A is closed, the roller holder 18 is always in the set position, and printing is possible.

Similarly, when the tape cassette 3 is taken out, when a finger is directly put on the cassette cover 29A and the cassette cover 29A is opened, the tongue piece 35 of the cassette cover 29A pushes up the upper lever 34. Therefore, the upper lever 34 and the lower lever 23 integrated with the upper lever 34 are connected to each other by the arrow A
Move in the direction of. In conjunction with this movement, the roller release rod 25 moves in the direction of arrow B in FIG. 1, and the roller holder 18 moves in the direction of arrow C to the release position.
Therefore, as soon as the cassette cover 29A is opened, the tape cassette 3 is ready to be taken out.

That is, as in the case of the first embodiment, the object can be achieved by one operation both when the tape cassette 3 is attached and when it is taken out. Further, instead of opening / closing the cassette cover 29A, the same result can be obtained by putting a finger on the upper lever 34 itself and pushing down or pulling it up. In the case of the second embodiment, as shown in FIG. 5, a pin 36 may be formed instead of the tongue piece 35 of the cassette cover 29A.
The one shown in FIG. 5 also operates in the same manner as that shown in FIGS.

Next, a third embodiment of the present invention will be described with reference to FIG.
Will be described with reference to. In this embodiment, similarly to the second embodiment, the lever for transmitting the movement of the cassette cover 29A to the roller release rod 25 is composed of two upper levers 34 and lower levers 23. FIG. 6 shows a cross-sectional view of the upper lever 34, the lower lever 23, and their peripheral portions in this embodiment. In FIG. 6, a tongue piece 35 is formed by forming a recess in a part of the cassette cover 29A.
The opening 37 is provided on the side of the. Upper lever 34
Is inserted into the opening 37, and the tongue piece 35 moves the upper lever 34.
And the lower lever 23. Cassette cover 29
The point A is rotated around the hinge portion 30 to open and close, and the point that the roller release rod 25 connects the lever end portion 24 and the roller holder is the same as in the above-described embodiment.

This embodiment also exhibits the same operation as that of the second embodiment. That is, when the cassette cover 29A is closed, the tongue piece 35 pushes down the lower lever 23, and the roller holder is brought to the set position via the roller release rod 25. On the other hand, when the cassette cover 29A is opened, the tongue piece 35 pushes up the upper lever 34. The roller holder is brought to the release position via the roller release rod 25. Thus, the object can be achieved by one operation both when the tape cassette 3 is attached and when it is taken out, and the same result can be obtained by operating the upper lever 34 itself with a finger.

As described in detail above, in the tape printer 1 according to the first embodiment, the cassette cover 29 is provided with the upper tongue piece 33 and the lower tongue piece 32, and the lever 22 is located between them. Since the end portion 24 of the lever 22 and the roller holder 18 are connected by the roller release rod 25,
When the cassette cover 29 is closed, the roller holder 18
Becomes the set position, and conversely, when the cassette cover 29 is opened, the roller holder 18 becomes the release position. Therefore, the opening / closing operation of the cassette cover 29 and the platen roller 1
The operation of sandwiching the printing tape by 6 is performed by one operation. Thus, in the tape printer 1, the roller holder 18
The possibility of color printing due to a print command without being set, and the possibility of redoing the operation by attempting to remove the tape cassette 3 with the roller holder 18 set is eliminated.

In the tape printer 1 according to the second and third embodiments, the levers are the upper lever 34 and the lower lever 23.
Since the tongue piece 35 or the pin 36 provided on the cassette cover 29A is located between them and the end 24 of the lever and the roller holder 18 are connected by the roller release rod 25, the first embodiment is described. Similarly to the above, the opening / closing operation of the cassette cover 29A and the pinching operation of the printing tape by the platen roller 16 are performed by one operation, and the possibility of color printing and re-execution of the operation is eliminated.

The present invention has been described above based on the embodiments, but the present invention is not limited to the above embodiments, and various modifications and improvements can be made without departing from the spirit of the present invention. It is easily guessed. For example, in each of the above-described embodiments, the platen roller 16 is attached to a rotatable roller holder 18, and the roller holder 18 is interlocked with a lever to switch between a set position and a release position so as to approach or separate from the thermal head 7. However, the relationship between the platen roller and the thermal head is reversed, the thermal head is attached to a rotatable head holder, and this head holder is interlocked with a lever to switch between the set position and the release position. It may be close to or away from.

[0038]

As described above, in the tape printer according to the present invention, the opening / closing operation of the cassette cover and the retracting operation of the print head and the platen are associated with each other in the opening / closing direction.
When the cassette cover is closed, the print head and platen are set accordingly, and when the cassette cover is opened even with the print head and platen set, the print head and platen are released and the cassette cover is released. By opening the door, it is possible to provide a tape printer with improved usability and reduced possibility of erroneous operation.

[Brief description of drawings]

FIG. 1 is a perspective view showing a cassette cover and a printing mechanism according to a first embodiment.

FIG. 2 is a perspective view of the printing mechanism shown in FIG. 1 viewed from the opposite side.

FIG. 3 is a perspective view showing a cassette cover and a printing mechanism according to a second embodiment.

FIG. 4 is a perspective view of the printing mechanism shown in FIG. 3 viewed from the opposite side.

5 is a perspective view showing the cassette cover and the printing mechanism shown in FIG. 3 provided with pins instead of tongue pieces of the cassette cover.

FIG. 6 is a cross-sectional view showing an upper lever, a lower lever and their surroundings according to a third embodiment.

FIG. 7 is a perspective view of the tape printer as viewed from the rear with the cassette cover omitted.

FIG. 8 is a diagram illustrating an internal structure of a tape cassette and a printing unit.

[Explanation of symbols]

 1 Tape Printing Device 3 Tape Cassette 4 Cassette Holding Part 7 Thermal Head 9 Printing Tape 10 Ink Ribbon 14 Double-sided Tape 16 Platen Roller 17 Pressing Roller 18 Roller Holder 22 Release Lever 23 Lower Lever 25 Roller Release Rod 29, 29A Cassette Cover 32 Lower Tongue Piece 33 Upper tongue piece 34 Upper lever 35 Tongue piece 36 Pin

Claims (4)

[Claims] 1. A tape having a cassette holding portion for detachably holding a tape cassette containing a printing tape, a printing head for printing on the printing tape, and a platen roller for pressing the printing tape to the printing head. In a printing device, a holder that holds at least one of the platen roller and the print head and is movable between a set position in which the platen roller or print head approaches the other and a release position in which the platen roller or the print head is separated from each other, and a closed state. In addition, it is possible to switch between an open state and an open state, and in the closed state, a cassette cover that covers the tape cassette held by the cassette holding portion, and a switchable position between a pushing position and a withdrawing position and interlocking with the cassette cover, Pushed position when the cassette cover is closed, and pulled out position when the cassette cover is open. And a release rod that connects the lever member and the holder, and that sets the holder to the set position when the lever member is in the push-in position and sets the holder to the release position when the lever member is in the pull-out position. Printer having a tape. 2. The tape printer according to claim 1, wherein when the cassette cover formed on the cassette cover is switched from an open state to a closed state, the lever member is pressed to switch from a pull-out position to a push-in position. A tape having an upper tongue and a lower tongue formed on the cassette cover, which pushes out the lever member to switch from a pushing position to a pulling position when the cassette cover is switched from a closed state to an open state. Printing device. 3. The tape printer according to claim 1, wherein a lower lever formed on the lever member, an upper lever formed on the lever member, and a cassette cover formed on the cassette cover are opened. When switching from the closed state to the closed state, the lower lever is pressed to switch the lever member from the extended position to the pushed position, and when the cassette cover is switched from the closed state to the open state, the upper lever is pushed out to push the lever member. A tape printer having a protrusion for switching from a position to a pull-out position. 4. The tape printer according to claim 1, wherein the platen roller is held by the holder.