JP6920840B2 - Printer - Google Patents

Description

The present invention relates to a printer that prints on a printing medium.

In a thermal transfer printer that prints on a printing medium using an ink ribbon, it is inevitable to replace the ink ribbon. For this reason, some thermal transfer printers have a print head configured in consideration of enabling printing operations and facilitating maintenance work such as replacement of ink ribbons (see Patent Document 1).

In the printer of Patent Document 1, the head block including the print head is cantilevered and supported by the main body housing, and the operating position where the print head comes into contact with the platen to enable printing and the print head separates from the platen to form paper. It is rotatable between the open position and the open position where the path is opened. Specifically, the head block is attached so that the fixed end on the main body housing side is used as a rotation axis and the open end swings in a direction intersecting the paper transport surface.

Further, in the printer described in Patent Document 1, the supply shaft and the take-up shaft of the ink ribbon are cantilevered and supported by the main body housing at an end portion above the head block and on the same side as the head block.

Japanese Unexamined Patent Publication No. 2003-251873

In the printer described in Patent Document 1, the open position of the open end of the head block is limited to the supply shaft, the take-up shaft, the ink ribbon mounted on each shaft, and the like arranged above the head block. Was there. For this reason, there are cases where a sufficient work space cannot be secured for various operations such as jam processing of the print medium.

Therefore, an object of the present invention is to improve the maintainability of the printer.

According to an aspect of the present invention, a platen roller that carries a print head for printing on a medium and a platen roller that is arranged to face the print head and conveys the medium and an ink ribbon in a state of being sandwiched between the print heads. A printer having The printing unit is rotatably provided at an open position open to the main body and a closed position closed to the main body , and the print unit is of the medium. A printer is provided that is rotatably provided with respect to the main body at one end in the transport direction.

According to the above aspect, the maintainability of the printer can be improved.

FIG. 1 is a side view illustrating an outline of the appearance of the printer 1 according to the embodiment of the present invention. FIG. 2 is a front view of the printer 1 according to the embodiment of the present invention. FIG. 3 is a side view illustrating an opening / closing operation of the printing unit 102 in the printer 1 according to the embodiment of the present invention. FIG. 4 is a side view on the opposite side of FIG. 3 for explaining the opening / closing operation of the printing unit 102 in the printer 1 according to the embodiment of the present invention. FIG. 5 is a front view illustrating a state in which the printing unit 102 of the printer 1 according to the embodiment of the present invention is opened. FIG. 6 is a side view illustrating the cover of the printer 1 according to the embodiment of the present invention. FIG. 7 is a front view illustrating the cover of the printer 1 according to the embodiment of the present invention. FIG. 8 is a schematic diagram illustrating a schematic configuration of a printer 1 according to an embodiment of the present invention.

[Explanation of printer printing unit and main unit]
Hereinafter, the printer 1 according to the embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view illustrating the outline of the printer 1.

The printer 1 according to the embodiment of the present invention prints with the medium P and the ink ribbon Rb sandwiched between the print head 11 and the platen roller 22. Details of the configuration of the printer 1 such as the print head 11 and the platen roller 22 will be described later.

The printer 1 according to the embodiment of the present invention includes a main body 101 and a printing unit 102, and an open position in which the printing unit 102 is open to the main body 101 and a closed position in which the printing unit 102 is closed to the main body 101. It is rotatably provided.

Although not shown in FIG. 1, the main body 101 includes a platen roller 22, a transport mechanism for transporting the medium P, and the like. The arrow X shown in FIG. 1 indicates the transport direction of the medium P.

The printing unit 102 includes a printing head 11 for printing on the medium P, and a ribbon accommodating portion 41 for accommodating the ink ribbon Rb. The upstream end of the printing unit 102 in the transport direction X is referred to as the rear end 102u, and the downstream end is referred to as the front end 102d.

The ribbon accommodating portion 41 is located on the upper side of the print head away from the main body portion 101 side, and includes a supply shaft 42 for supplying the ink ribbon Rb, a winding shaft 43 for winding the ink ribbon Rb, and the like.

Further, the printing unit 102 in the present embodiment has a support portion 103, and at least the print head 11, the supply shaft 42 of the ink ribbon Rb, and the take-up shaft 43 are arranged in the support portion 103.

Note that, in FIG. 1, only the print head 11 and the ribbon accommodating portion 41 are shown as the configurations arranged in the print unit 102, and other configurations are omitted.

FIG. 2 is a front view of the printer 1 according to the embodiment of the present invention. The print head 11 has a fixed end portion 11a that is cantilevered and supported by the support portion 103 and an open end portion 11b in the width direction orthogonal to the transport direction of the medium P.

The supply shaft 42 has a fixed end portion 42a that is cantilevered and supported by the support portion 103 and an open end portion 42b in the width direction with respect to the transport direction of the medium P.

The take-up shaft 43 has a fixed end portion 43a that is cantilevered and supported by the support portion 103 and an open end portion 43b in the width direction with respect to the transport direction of the medium P.

The length of the support portion 103 in the width direction is shorter than the length of the main body portion 101 in the width direction. Further, the support portion 103 is arranged closer to one end side in the width direction of the main body portion 101. That is, one end of the support portion 103 in the width direction is arranged so as to coincide with one end of the main body portion 101 in the width direction, and the open ends 11b, 42b, 43b of the main body portion 101. It is provided so that it fits in the width.

FIG. 3 is a side view for explaining the opening / closing operation of the printing unit 102 in the printer 1 according to the embodiment of the present invention, and for convenience of explanation, a part of the configuration of the printer 1 is transparently shown. FIG. 4 is a side view on the opposite side of FIG. 3 for explaining the opening / closing operation of the printing unit 102 in the printer 1 according to the embodiment of the present invention. The alternate long and short dash line in FIGS. 3 and 4 indicates that the printing unit 102 is in the closed position.

FIG. 5 is a front view illustrating a state in which the printing unit 102 of the printer 1 according to the embodiment of the present invention is opened.

As shown in FIG. 3, the printing unit 102 in the printer 1 includes a unit support portion 102S at the upstream end 102u of the medium P in the transport direction X. The unit support portion 102S is rotatably connected to a rotation shaft 101D fixed to the main body portion 101. As a result, the printing unit 102 is rotatably attached to the main body 101.

In the main body 101, a drive transmission mechanism 61 or the like for driving a transport mechanism (not shown) is arranged below the support 103. The drive transmission mechanism 61 transmits a drive force from a motor (not shown) provided on the main body 101 to the take-up shaft 43 and the like.

The drive transmission mechanism 61 may be provided on the support portion 103 side, or may be provided on the support portion 103 and the main body portion 101, respectively.

Further, the print head 11 provided in the print unit 102 is attached by an elastic portion (not shown) provided in the support portion 103 in a direction away from the main body portion 101, that is, in a direction in which the print head 11 is separated from the platen roller 22. As shown in FIGS. 3 and 4, a part of the printing unit 102 faces the medium P.

In the present embodiment, the printing unit 102 is configured to rotate until a part of the rear end portion 102u comes into contact with a predetermined position of the main body portion 101. A part of the rear end portion 102u is stopped and maintained at a position where it comes into contact with a predetermined position of the main body portion 101. That is, this contact position is the open position.

As described above, according to the printer 1 according to the present embodiment, the printing unit 102 can rotate the front end portion 102d in the direction of the arrow C shown in FIGS. 3 and 4.

When the print unit 102 moves to the open position, a space S is formed between the main body 101 and the print unit 102.

At this time, as shown in FIG. 5, when viewed from the front end portion 102d side, the lower surface of the printing unit 102 moves in a direction away from the main body portion 101, and the printing head 11 provided on the printing unit 102 is exposed to the space S. do. Further, below the support portion 103, internal structures such as a transport mechanism and a drive transmission mechanism 61 arranged in the main body portion 101 are exposed in the space S. Therefore, when the heating element (not shown) of the print head 11 is exposed at a position where the user does not have to look into it, the user can easily perform the cleaning work and the print head replacement work, and the maintainability is improved.

Further, according to the printer 1, the printing unit 102 rotates. That is, the print head 11 and the ribbon accommodating portion 41 are integrally rotated with respect to the main body portion 101. As a result, a space S is formed between the main body 101 and the printing unit 102.

In the printer 1 according to the present embodiment, the print head 11, the supply shaft 42 and the take-up shaft 43 in the ribbon accommodating portion 41 are fixed to the support portion 103 at the fixed end portions, respectively, and are mutually fixed during the rotation operation. The positional relationship of is not changed.

Therefore, even if the space S is opened between the main body 101 and the printing unit 102 to secure a space S, the printing head 11 and the ribbon accommodating portion 41 do not interfere with each other.

Further, since the printing unit 102 is rotatably connected to the rotation shaft 101D at the unit support portion 102S provided at the end portion 102u on the upstream side in the transport direction X of the medium P, the printing unit 102 is connected to the front end portion thereof. By turning the 102d upstream in the transport direction X, the periphery of the print head 11 is exposed.

In order to make it easier for the user to access the area around the print head, for example, it is conceivable to raise the print unit upward to secure space, but in such a case, the print unit is located above the print unit. A large evacuation space must be secured for evacuation. On the other hand, the printer 1 according to the present embodiment does not need to do so.

As described above, according to the printer 1 according to the embodiment of the present invention, the maintainability of the printer 1 can be improved without narrowing the degree of freedom of the installation location.

[Other embodiments of the printing unit and the main body]
The printer 1 according to another embodiment of the present invention includes a cover 71 that protects the drive transmission mechanism 61 in an open state in which the printing unit 102 exposes the transport surface of the medium P and the printing head 11 in the main body 101.

FIG. 6 is a side view for explaining the cover 71 provided in the printer 1, and FIG. 7 is a front view for explaining the cover 71 provided in the printer 1.

The cover 71 is housed in the main body 101 in a state where the printing unit 102 and the main body 101 are closed, and the transport surface of the main body 101 and the printing head 11 are exposed by the rotational operation of the printing unit 102. It appears on the printing unit 102 side from the inside of the main body 101 in conjunction with the operation of opening the cover. That is, it moves between the main body 101 and the printing unit 102 in the open position.

As a result, in the open state of the printing unit 102, as shown in FIGS. 6 and 7, the cover 71 covers the drive transmission mechanism 61 located between the main body 101 and the printing unit 102 in the open position, and the main body is covered. The drive transmission mechanism 61 provided in the unit 101 is not exposed to the outside of the printer 1. As a result, it is possible to prevent foreign matter such as dust from entering the drive transmission mechanism 61 and injury to the operator.

A convex portion may be formed on the main body 101, and a guide groove that engages with the convex portion may be formed on the cover 71. As a result, as the cover 71 moves, the convex portion formed on the cover 71 slides in the guide groove, so that the cover 71 serves as a support and suppresses rattling when the printing unit 102 rotates. can. The main body 101 may be provided with a convex portion, and the cover 71 may be provided with a guide groove.

Further, when the print unit 102 reaches the open position, that is, when the rear end portion 102u of the support portion 103 comes into contact with the main body portion 101, the movement in the open direction is stopped, and the support portion 103 and the print unit 102 move. A locking portion may be provided to hold the print unit 102 in the open position when the maximum open position is reached. As a result, the front end 102d side of the printing unit 102 is held (locked) in the open position, so that the user can easily perform maintenance work.

[Explanation of printer configuration]
Hereinafter, the specific configuration of the printer 1 described above will be described with reference to FIG. FIG. 8 is a schematic view illustrating the configuration of the printer 1 according to the embodiment of the present invention.

The printer 1 is a device that prints characters, figures, and the like on the medium P. Examples of the printing method in the printer 1 include an inkjet method, a laser method, and a thermal transfer method. In this embodiment, the medium P conforms to the printing method applied to the printer 1.

In the present embodiment, the medium P includes an IC chip and an antenna compatible with RFID (Radio Frequency Identification) technology, and an IC tag medium P1 capable of writing information by wireless communication and printing on the surface thereof. , A printing medium P2 that does not have an IC chip and an antenna and can only print can be used.

In the present embodiment, both the IC tag medium P1 and the print medium P2 are single leaves. In the following description, when the medium P is described, both the IC tag medium P1 and the print medium P2 are included. The medium P is a long continuous paper, a continuous label in which a plurality of labels are temporarily attached to a peeling mount at intervals, and an adhesive is provided on one side of a long continuous paper having no peeling mount. It may be a long label.

The printer 1 according to the present embodiment takes in the medium P, prints on the medium P, and discharges the printed medium P.

In the present embodiment, the capture means that the medium P is carried into the printer 1 from the outside for printing. Further, the discharge means to carry out the medium P for which printing has been completed to the outside of the printer 1.

As a basic operation, the printer 1 according to the present embodiment takes in the medium P from the rear end portion 10R side (corresponding to the rear end portion 102u of the printing unit 102) of the printer 1 and prints, and then prints on the front end portion 10F (printing unit). It is configured to discharge from the front end portion 102d of 102).

The printer 1 according to the present embodiment can also take in and eject the medium P at the front end portion 10F, and in this case, the direction from the front end portion 10F toward the rear end portion 10R described later (FIG. The medium P is conveyed in the direction of the arrow F1 shown in FIG. 8), and after printing, the medium P is conveyed in the direction from the rear end portion 10R to the front end portion 10F (the direction of the arrow F2 shown in FIG. 8). ing.

The direction of the arrow F2 shown in FIG. 8 corresponds to the transport direction X shown in FIGS. 1, 3 and 4.

The printer 1 according to the present embodiment has a print head 11 for printing characters, symbols, etc. on the medium P, and an IC writing unit 12 for writing predetermined information on the IC tag medium P1.

The print head 11 prints the printing ink applied to the ink ribbon Rb on the medium P by thermal transfer. Further, the print head 11 is swingably arranged toward the platen roller 22, and is pressed against the platen roller 22 at a predetermined pressure during the printing operation.

A platen roller 22 is arranged at a position facing the print head 11. The platen roller 22 conveys the medium P in the direction of the arrow F1 or the arrow F2 with the medium P sandwiched between the platen roller 22 and the print head 11.

The printer 1 according to the present embodiment includes an upper roller unit 31 and a lower roller unit 32. In FIG. 8, the main part of the upper roller unit 31 and the main part of the lower roller unit 32 are shown. Details of the upper roller unit 31 in this embodiment will be described later.

The printer 1 according to the present embodiment includes a first transport unit 33 arranged on the downstream side of the print head 11 in the direction of arrow F2. The first transport unit 33 has a first upper roller 33a located on the print head 11 side and a first lower roller 33b located on the platen roller 22 side.

Further, the printer 1 according to the present embodiment includes a second transport unit 34 arranged on the upstream side of the print head 11 in the direction of the arrow F2. The second transport unit 34 has a second upper roller 34a and a second lower roller 34b.

Further, the printer 1 according to the present embodiment includes a third transport unit 35 arranged on the upstream side of the second transport unit 34 in the direction of arrow F2. The third transport unit 35 has a third upper roller 35a and a third lower roller 35b.

When the medium P is taken in from the rear end portion 10R described later, the third transport unit 35 sandwiches the medium P and transports the medium P toward the print head 11.

In the present embodiment, the first lower roller 33b, the second lower roller 34b, and the third lower roller 35b are connected to a motor (not shown in FIG. 8), and the rotation of the motor is the first lower roller 33b. , It is transmitted to the second lower roller 34b and the third lower roller 35b.

Here, the rotation directions of the first lower roller 33b, the second lower roller 34b, and the third lower roller 35b are configured to be interlocked with the rotation direction of the platen roller 22.

The IC writing unit 12 is arranged on the upstream side of the print head 11 in the direction of arrow F2. The IC writing unit 12 is set with antenna sensitivity, radio wave output, installation location, and the like so that predetermined information can be written to the captured IC tag medium P1.

The IC writing unit 12 has a UHF band (300 MHz to 3 GHz, particularly 860 MHz to 960 MHz), a microwave (1 to 300 GHz, particularly near 2.4 GHz), and an HF band (3 MHz to 30 MHz, particularly 13), depending on the communication standard. It is possible to transmit a signal corresponding to a radio wave in a specific frequency band such as (around .56 MHz).

The IC tag medium P1 is provided with an antenna corresponding to these RFID standards.

The printer 1 according to the present embodiment has an IC tag mode for printing on the IC tag medium P1 and a print mode for printing on the print medium P2. In the printer 1, the print mode and the IC tag mode can be switched.

The printer 1 further includes a ribbon accommodating portion 41 for supplying an ink ribbon Rb coated with printing ink to be transferred to the medium P.

As described with reference to FIG. 1 and the like, the ribbon accommodating portion 41 winds up the supply shaft 42 for supplying the ink ribbon Rb wound in a roll shape and the ink ribbon Rb after being used for printing. It includes a shaft 43.

The supply shaft 42 and the take-up shaft 43 are connected to a drive unit (not shown) via a drive transmission mechanism 61 (not shown in FIG. 8), and the medium P is conveyed in the direction of the arrow F1 or the arrow F2. Together, it rotates so as to convey the ink ribbon Rb.

In FIG. 8, the movement of the ink ribbon Rb when the medium P is conveyed in the direction of the arrow F2 is indicated by a black arrow.

Further, the ribbon accommodating portion 41 includes tension rollers 44 and 45 that apply a predetermined tension to the ink ribbon Rb sent out from the supply shaft 42 or the ink ribbon Rb passing through the print head 11 and heading toward the take-up shaft 43.

The ink ribbon Rb drawn from the roll mounted on the supply shaft 42 is supplied between the print head 11 and the platen roller 22. The ink ribbon Rb is conveyed in the direction of arrow F2 while being sandwiched between the platen roller 22 and the print head 11 together with the medium P.

The printer 1 according to the present embodiment includes a sensor 51 that detects that the medium P has been inserted into the casing 10 from the front end portion 10F.

Further, the printer 1 according to the present embodiment includes a sensor 52 that detects that the medium P has been inserted from the rear end portion 10R.

[Explanation of printing operation]
Next, the printing operation on the IC tag medium P1 and the printing medium P2 by the printer 1 according to the embodiment of the present invention will be described.

The printer 1 is capable of switching between an IC tag mode for printing on the IC tag medium P1 and a print mode for printing on the print medium P2.

(IC tag mode)
When the IC tag mode is selected and the IC tag medium P1 is inserted from the rear end portion 10R, the insertion is detected by the sensor 52. The capture phase begins when the insert is detected.

When the insertion is detected, the third upper roller 35a and the third lower roller 35b match the IC tag medium P1 with the antenna provided in the IC writing unit 12 and the antenna provided in the IC tag medium P1. Transport to the writing position.

When the IC tag medium P1 reaches the writing position, the ejection phase (writing process and printing process) is started. Prior to printing by the print head 11, the IC writing unit 12 writes predetermined information on the IC tag medium P1.

After that, the IC tag medium P1 is conveyed to the print head 11 in the direction of arrow F2 by the second upper roller 34a and the second lower roller 34b. The IC tag medium P1 is printed while being sent in the arrow F2 direction in a state of being sandwiched between the print head 11 and the platen roller 22 in the print head 11.

When printing is completed, the IC tag medium P1 is conveyed to the front end portion 10F in the direction of arrow F2 by the first upper roller 33a and the first lower roller 33b.

In the series of operations described above, the amount of rotation of the third upper roller 35a and the third lower roller 35b when the IC tag medium P1 is conveyed to the position of the print head 11 by the third upper roller 35a and the third lower roller 35b. , The amount of rotation of the platen roller 22 when the IC tag medium P1 is conveyed to the positions of the first upper roller 33a and the first lower roller 33b by the platen roller 22, and the ink ribbon R by the take-up shaft 43 of the ribbon accommodating portion 41. Is stored in advance in a predetermined memory (not shown) as work information for executing the IC tag mode.

As described above, the printer 1 can take in the IC tag medium P1 and write predetermined information on the IC chip and print on the surface of the IC tag medium P1 on the IC tag medium P1.

(Print mode)
When the print mode is selected and the print medium P2 is inserted from the rear end portion 10R, the insertion is detected by the sensor 52. The capture phase begins when the insert is detected.

The third upper roller 35a and the third lower roller 35b convey the print medium P2 to the print head 11 in the direction of arrow F2.

When the print medium P2 reaches the print head 11, the print head 11 is pressed against the platen roller 22 and the printing process is started. The print medium P2 is conveyed to the first upper roller 33a and the first lower roller 33b by the rotation of the platen roller 22 while being sandwiched between the print head 11 and the platen roller 22 together with the ink ribbon R.

When printing is completed, the printing medium P2 is conveyed to the opening 10F in the direction of arrow F2 by the first upper roller 33a and the first lower roller 33b.

The third upper roller 35a and the third lower roller 35b when the print medium P2 is conveyed to the position of the print head 11 by the third upper roller 35a and the third lower roller 35b in the above-mentioned capture phase of the print mode. Rotation amount, rotation amount of the platen roller 22 when the printing medium P2 is conveyed to the positions of the first upper roller 33a and the first lower roller 33b by the platen roller 22, and the ink ribbon by the take-up shaft 43 of the ribbon accommodating portion 41. The transmission amount of R is stored in advance in a memory (not shown) as work information for executing the print mode.

As described above, the printer 1 can take in the print medium P2, print predetermined information on the surface of the print medium P2, and discharge the print medium P2.

[Other Embodiments]
The above-described embodiments of the present invention can be modified in various ways without departing from the spirit of the present invention.

In the printer 1 according to the present embodiment, it is possible to perform a printing operation in which the medium P is taken in from the front end portion 10F for printing, the transport direction of the medium P after printing is reversed, and the medium P is ejected again from the front end portion 10F. In this case, the following printing operation is executed.

When the sensor 51 detects that the medium P has been inserted from the front end portion 10F, the pressure on the platen roller 22 of the print head 11 is released. That is, the sandwiched state between the print head 11 and the platen roller 22 is released. As a result, the medium P can be inserted between the print head 11 and the platen roller 22 from the front end portion 10F.

Subsequently, the first upper roller 33a and the first lower roller 33b convey the IC tag medium P1 to the print head 11 in the direction of the arrow F1.

When the IC tag medium P1 reaches the print head 11, the print head 11 is pressed against the platen roller 22. The IC tag medium P1 is conveyed to the second upper roller 34a and the second lower roller 34b by the rotation of the platen roller 22 while being sandwiched between the print head 11 and the platen roller 22 together with the ink ribbon R.

When the IC tag medium P1 is conveyed to the second upper roller 34a and the second lower roller 34b by the rotation of the platen roller 22, and the IC tag medium P1 is delivered to the second upper roller 34a and the second lower roller 34b. , The sandwiched state between the print head 11 and the platen roller 22 is released.

At this time, the ink ribbon R corresponds to the transport distance from when the print head 11 is pressed against the platen roller 22 until the IC tag medium P1 reaches the second upper roller 34a and the second lower roller 34b. The used area of is rewound in the direction of arrow F1 (that is, in the direction opposite to the black arrow).

Therefore, when performing a printing operation of capturing the medium P from the front end portion 10F, the printer 1 releases the pinching state between the print head 11 and the platen roller 22, and then the ink ribbon R rewound in the direction of the arrow F1. Control may be performed to send out the used area of the above until the unused area reaches the printing start position.

Further, in this case, the second upper roller 34a and the second lower roller 34b match the IC tag medium P1 with the antenna provided in the IC writing unit 12 and the antenna provided in the IC tag medium P1. It is controlled to carry to the writing position.

In the printer 1 according to the present embodiment, the IC writing unit 12 for writing predetermined information to the IC tag medium P1 does not necessarily have to be provided.

The printer 1 according to the present embodiment includes three transport units, a first transport unit 33, a second transport unit 34, and a third transport unit 35. However, the number of transport units is variable depending on the length of various media P that can be used in the printer 1 in the longitudinal direction. The second transport unit 34 and the third transport unit 35 may be any one.

In the printer 1 according to the present embodiment, when the length from the front end portion 10F to the print head 11 is shorter than the length in the longitudinal direction of the medium P, the first transport portion 33 is unnecessary. Further, even when the medium P is not taken in from the front end portion 10F, the first transport portion 33 is unnecessary.

Further, in the printer 1 according to the present embodiment, the unit support portion 102S may be urged in the opening direction by an urging member such as a coil spring. The urging force reduces the burden on the user in opening the print unit 102.

Although the embodiment of the present invention has been described above, the above-described embodiment shows only a part of the application examples of the present invention, and the purpose of limiting the technical scope of the present invention to the specific configuration of the above-described embodiment. is not it.

1 Printer 10F Front end 10R Rear end 11 Print head 11a Fixed end 11b Open end 12 IC writing part 22 Platen roller 31 Upper roller unit 32 Lower roller unit 33 First conveyor 33a First upper roller 33b First Lower roller 34 2nd conveyor 34a 2nd upper roller 34b 2nd lower roller 35 3rd conveyor 35a 3rd upper roller 35b 3rd lower roller 41 Ribbon accommodating 42 Supply shaft 42a Open end 42b Fixed end 43 Winding shaft 43a Fixed end 43b Open end 44,45 Tension roller 51,52 Sensor 61 Drive transmission mechanism 71 Cover 101 Main body 101D Rotating shaft 102 Printing unit 102S Unit support 102d Front end 102u Rear end 103 Support Department

Claims (6)

A printer having a print head for printing on a medium and a platen roller which is arranged so as to face the print head and conveys the medium and an ink ribbon in a state of being sandwiched between the print heads.
A main body having a platen roller that conveys the medium, and
A printing unit that cantileverly supports at least one end of each of the print head, the supply shaft and the take-up shaft of the ink ribbon, and the like.
Have,
The printing unit is rotatably provided at an open position open to the main body and a closed position closed to the main body .
The printing unit is
A printer rotatably provided with respect to the main body at one end in the transport direction of the medium. The printer according to claim 1.
The printing unit is housed in the main body in the closed position, and when the printing unit rotates toward the opening position, the printing unit moves with the rotation of the printing unit, and the printing unit moves in the open position. A printer that is located between the printing unit and the main body when it is located in the printer and has a cover that covers the internal structure of the printer. A printer having a print head for printing on a medium and a platen roller which is arranged so as to face the print head and conveys the medium and an ink ribbon in a state of being sandwiched between the print heads.
A main body having a platen roller that conveys the medium, and
A printing unit that cantileverly supports at least one end of each of the print head, the supply shaft and the take-up shaft of the ink ribbon, and the like.
Have,
The printing unit is rotatably provided at an open position open to the main body and a closed position closed to the main body.
The printing unit is housed in the main body in the closed position, and when the printing unit rotates toward the opening position, the printing unit moves with the rotation of the printing unit, and the printing unit moves in the open position. A printer that is located between the printing unit and the main body when it is located, and includes a cover that covers the internal structure of the printer. The printer according to claim 3.
The printing unit has a support portion that cantileverly supports at least one end of the print head, the supply shaft of the ink ribbon, and the take-up shaft.
The cover is a printer that covers the internal structure located below the support portion in a state where the printing unit is in the open position. The printer according to claim 3 or 4.
The internal structure is a printer that is a drive transmission mechanism. The printer according to any one of claims 1 to 5.
The printing unit is a printer that is rotatably supported by a rotating shaft located upstream of the platen roller in the transport direction with respect to the main body.

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