JPH08156355A - Printing apparatus - Google Patents

Abstract

PURPOSE: To reduce the moment of inertia of a cutter mechanism and suppress vibrations of a carriage at the time of printing by connecting the cutter mechanism to the carriage for cutting of a printing paper after printing is effected in a state, in which the carriage does not connect thereto the cutter mechanism. CONSTITUTION: At the time of printing, a drive motor 41 is given an operating signal so as to cause a carriage 1 to move from a position A toward a position C. When the carriage 1 has moved to the position C, the drive motor 41 is reversed to return the carriage 1 to the position A again. At the time of cutting action, the carriage 1 is made adjacent to a cutter mechanism 2 in a position B. Further, a solenoid 33 turns a hook-shaped member 31 to have the same engage with a projection member 32 on the cutter mechanism 2. Then the carriage 1 moves to a position D, and the cutter mechanism 2 correspondingly moves. Then a printing paper P is cut in a position where it contacts with a cutter blade 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing apparatus, and more particularly to a serial type printing apparatus using roll-shaped printing paper.

[0002]

2. Description of the Related Art Conventionally, as a printing apparatus of this type, Japanese Utility Model Laid-Open No. 3-6949 is cited. This is shown in FIG.

In this conventional example, a carriage 51 movably supported along a carriage guide 52 and a sub guide 53 arranged in the width direction of the printing paper P, and a carriage 5.
1, a print head 54 mounted on the first unit, a carriage moving mechanism (not shown), and a carriage mechanism on the carriage 51.

This cutter mechanism is composed of a motor 60 which is rotated by an operation command, an arm 59 which is rotated by the motor 60, and a cutter blade 57 which is provided at the tip of the arm 59. Reference numeral 58 is a sheet guide which is arranged parallel to the moving direction of the carriage 51 and which abuts the cutter blade 57 at the guide groove.

At the time of printing, the printing paper P is conveyed upward in the drawing by the rotation of the conveying roller 55 and the driven roller 55A, the carriage 51 is guided by the carriage guide 52 and the sub guide 53, and is urged by the carriage moving mechanism. The print head 54 on the carriage 51 moves in the width direction of the print paper P and prints as the carriage 51 moves. At that time, in the cutter mechanism, the arm 59 is rotated 90 degrees from the state shown in FIG. 6 and the cutter blade 57 stands by at a position where the cutter blade 57 cannot reach the printing paper P.

When the printing paper P having been printed is cut, the carriage 51 moves to one end of the carriage guide 52 in response to an operation command from an electric section or the like which controls the operation of the printing apparatus P. The motor 60 rotates by being energized by a cable (not shown), and stops in a direction in which the arm 59 faces the surface of the printing paper P substantially vertically. In this state, the tip of the cutter blade 57 of the cutter mechanism comes into contact with the guide groove formed in the sheet guide 58.

The carriage 51 has a carriage guide 52.
, The cutter blade 57 of the cutter mechanism moves along the guide groove of the sheet guide 58, and the printing paper P is cut.

[0008]

In the above-mentioned conventional example, by mounting the cutter mechanism on the carriage for moving the print head, the movement power of the carriage can be shared as the power for cutting the cutter mechanism. It is composed.

However, in the above-mentioned conventional example, by mounting the cutter mechanism on the carriage, the weight of the entire carriage is increased, and the moment of inertia that influences the reciprocating movement of the carriage by vibration or the like is increased. Therefore, when moving the carriage at high speed, the image quality of the printed material deteriorates, and further, the state of the cut end of the cut printing paper deteriorates, which is not suitable for speeding up printing. there were.

[0010]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a printing apparatus that improves the disadvantages of the conventional example, maintains high print image quality, and is compatible with high-speed printing.

[0011]

According to the present invention, there is provided a print head which faces a print sheet, a carriage on which the print head is mounted, a carriage guide which is arranged perpendicularly to the print sheet conveyance direction and guides the carriage. A cutter moving mechanism for urging the carriage with a moving force, a cutter mechanism having a cutter blade for contacting the printing paper and being guided by a carriage guide, and a connecting mechanism for connecting or disconnecting the cutter mechanism to or from the carriage according to an operation command. It has a mechanism. This aims to achieve the above-mentioned object.

Further, the following cutter blades may be used as the cutter blades provided in the cutter mechanism. For example,
A cutter blade that obliquely abuts against the printing paper and is fixed to the cutter mechanism, or a disk-shaped cutter blade that is rotatably supported by the cutter mechanism, or a blade that is rotatably supported by the cutter mechanism and has a predetermined circumference. It is also possible to use a disc-shaped cutter blade or the like provided with concave notches at intervals.

Further, the connecting mechanism may be constituted by a hook-shaped member mounted on the carriage and a projection member mounted on the cutter mechanism and engageably engaged with the hook-shaped member, or on the carriage. It may be composed of an electromagnet provided and a magnetic member provided on the cutter mechanism.

As another connecting mechanism, a guide plate mounted on the cutter mechanism and having a W-shaped guide groove, and an engaging protrusion for engaging with the W-shaped guide groove mounted on the cutter mechanism. An arm member provided with a guide plate rotatably so as to guide the engaging projection along the W-shaped guide groove, and the opening of the guide groove faces the engaging projection. Alternatively, the guide plate may be provided with a current position return spring.

Further, a locking member for locking the cutter mechanism which is in a detached state from the carriage may be provided near one end of the carriage guide.

Further, the cutter mechanism may be detachably mounted on the carriage guide.

[0017]

Operation: Printing is performed with the cutter mechanism detached from the carriage. After a predetermined amount of printing is performed, the carriage and cutter mechanism are coupled by the coupling mechanism in response to a separately set operation command, and the carriage is moved along the carriage guide by being urged by the carriage movement mechanism. The cutter mechanism also moves to cut the printing paper.

According to another aspect of the present invention, the carriage is moved so as to be close to the cutter mechanism, and the hook-shaped member mounted on the carriage is engaged with the protrusion member mounted on the cutter mechanism according to a separately set operation command. Thus, the connecting operation is performed.

According to the sixth aspect of the present invention, the carriage moves so as to be close to the cutter mechanism, the electromagnet on the carriage is energized by a separately set operation command, and attracts the magnetic body on the cutter mechanism to each other. Done.

Further, in the case where the connecting mechanism has the structure described in claim 7, the carriage moves so as to approach the cutter mechanism, and the engaging projections provided on the arm member on the carriage have the cutter mechanism. Engaging with the W-shaped guide groove provided on the guide plate of the guide plate, and the engaging protrusion is guided along the W-shaped groove according to the reciprocating movement of the carriage. Is released from the engagement with the W-shaped guide groove, and the carriage and the cutter mechanism are separated.

Further, when a locking member for holding the cutter mechanism at one end of the carriage guide at the time of printing is provided, the cutter mechanism is held without moving due to vibration generated at the time of printing.

Further, when the cutter mechanism is detachably attached to the carriage guide, the cutter mechanism is detached from the carriage guide and the work is performed when the cutter blade is replaced or the cutter mechanism is repaired.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

In this embodiment, the print head 5 is arranged so as to face the printing paper P, the carriage 1 on which the printing head 5 is mounted, and the carriage 1 is arranged along the width direction of the printing paper P. A cutter that has a carriage guide 52 that guides it, a carriage moving mechanism 4 that applies a moving force to the carriage 1, and a cutter blade 21 that contacts the printing paper P and that is guided by a carriage guide 53 and moves. The printer 10 includes a mechanism 2 and a connecting mechanism 3 that connects or disconnects the cutter mechanism 2 with the carriage 1 according to an operation command.

The printing paper P is conveyed by conveying rollers 55, 56 that rotate by receiving a rotational force from a driving unit (not shown) and driven rollers 55A, 56A that follow the printing rollers, and printing is performed between these conveying rollers 55, 56. Is done. Reference numeral 58 denotes a vertical surface 58b facing the print head 5.
And a sheet guide having a guide groove 58a for guiding the cutter blade 21.

A carriage guide 52 is provided in parallel with the sheet guide 58, and a sub guide 53 is provided in parallel with the carriage guide 52 to support the carriage 1 together.

The carriage 1 has holes into which the carriage guide 52 and the sub guide 53 are fitted, respectively.
The carriage guide 52 and the sub guide 53 can be reciprocated in the arrangement direction. Also, the carriage 1
Is fixed to one endless belt 42 at the lower side,
Carriage moving mechanism 4 including an endless belt 42 and a drive motor 41 that winds the endless belt 42 around a rotating shaft.
The movement force is urged by.

On the carriage 1, a thermal type print head 5 which heats when electric power is applied is mounted, and 12 heating elements per 1 [mm] extend over 8 [mm] printing paper in the printed portion. It is arranged in the transport direction of P and is biased in the P direction by the pressing spring.
The vertical plane 58b of the above-mentioned sheet guide 58 faces the printing portion of the print head 5, and printing is performed between the vertical plane 58b and the print head 5. In this embodiment, as the printing paper P, a thermosensitive recording paper that develops black when heat is applied is used.

On the carriage 1, a hook-shaped member 3 is provided.
1 and a solenoid 33 are mounted, and these, together with a projection member 32 provided on the cutter mechanism 2 which will be described later, constitute a connecting mechanism. With this connection mechanism 3,
The carriage 1 and the cutter mechanism 2 can be connected.

The hook-shaped member 31 has one end formed in a hook shape suitable for engaging with the above-mentioned projection member 32, and the other end connected to the solenoid 33, and pivots at the centers of both ends. It is supported by the carriage 1 as much as possible. The solenoid 33 is energized by a wire (not shown), and the other end of the hook-shaped member 31 is moved forward in the direction of arrow S to engage the hook-shaped member 31 with the projection member 32 or We are releasing it.

Like the carriage 1, the cutter mechanism 2 is supported by a carriage guide 52 and a sub guide 53, and is capable of reciprocating along the carriage guide 52 and the sub guide 53 to cut the printing paper P. Stand by at one end of the carriage guide 52 except when performing
Further, in order to prevent the movement unrelated to the operation command due to the vibration caused by the printing operation, the locking member 7
Is locked in. Further, the above-mentioned protruding member 32 is provided on the cutter mechanism 2 so that the guide groove 58 provided in the sheet guide 58 is provided on the side of the printing paper P of the cutter mechanism 2.
A cutter blade 21 is planted at a position corresponding to a.
The cutter blade 21 has a blade portion that abuts the printing paper P obliquely.

Next, the printing operation of this embodiment will be described with reference to FIGS. The printing apparatus 10 in this embodiment is
The printing apparatus 1 has an electric unit (not shown), and the electric unit follows a storage unit that stores each operation of the printing apparatus 10 or an operation command from an operation panel (not shown) or the like.
The operation of each unit of 0 is controlled.

As shown in FIG. 2, the carriage 1 is located at the normal position A (home position), and during printing, the carriage 1 is driven so as to move from the position A to the position C. An operation signal is given to the motor 41. Further, when the carriage 1 moves to the position C, the drive motor 41 reverses and returns the carriage 1 to the position A again. The timing of this reversal is determined by the amount counted in the electrical section. Alternatively, the micro switch 6 may be provided at the position A, and the position of the carriage 1 may be detected by turning on / off the micro switch. Further, the position of the carriage may be detected by the electric section and the micro switch 6 may be used together. With these, the drive motor 41 can be driven so that the carriage 1 is accurately located at the position A.

The above-described operation is performed every time the printing paper P is conveyed by one line, and when printing is completed, the printing apparatus 10 switches to the cutting operation of the printing paper P.

In the cutting operation, the drive motor 41 drives the carriage 1 so that the carriage 1 reaches the position B in response to the signal from the electric section. The carriage 1 is adjacent to the cutter mechanism 2 at the position B. Further, the solenoid 33 mounted on the carriage 1 receives a signal from the electric portion via a wire (not shown) to rotate the hook-shaped member 31. Then, as shown by the chain double-dashed line in FIG. 2, the hook-shaped member 31 engages with the projection member 32 on the cutter mechanism 2, so that the carriage 1 and the cutter mechanism 2 are in a connected state.

Further, the carriage 1 is moved to the position D by the carriage moving mechanism 4, and the cutter mechanism 2 is also moved accordingly. The cutter blade 21 provided in the cutter mechanism 2 has the guide groove 5 provided in the sheet guide 58.
8A, the printing paper P is cut at the contact point with the cutter blade 21. At this time, since the above-mentioned locking member 7 is biased from below the cutter mechanism 2 with a not so strong pressing force, the cutter mechanism 2 is easily locked by the moving force of the carriage moving mechanism 4. Leave from.

After cutting the printing paper P, the carriage 1 moves from the position D to the position B. Then carriage 1
The upper solenoid 33 has a hook-shaped member 31 and a protruding member 32.
The carriage 1 and the cutter mechanism 2 are separated from each other by releasing the engagement with. Further, the carriage 1 returns to the position A, and the cutting operation ends.

In the first embodiment, since the cutter mechanism 2 is separated from the carriage 1 during printing, printing is performed with the weight of only the carriage 1, and the inertia moment corresponding to the weight of the cutter mechanism 2 becomes small. Generation of vibrations when the carriage 1 reciprocates is suppressed. Therefore, according to the present invention, the image quality in printing is improved, and it becomes possible to cope with the higher moving speed of the carriage 1.
Accordingly, it is possible to realize high speed printing.

Further, in the first embodiment, since the locking member 7 is provided, the cutter mechanism 2 is held at one end of the carriage guide 52 at the time of printing, and from this one end, it is related to the operation signal of the electric part. In order to prevent the unnecessary movement, it is possible to preferably perform printing without hindering the printing operation of the carriage 1.

Further, in the first embodiment, by providing the micro switch 6 at the position A, the carriage 1 can be accurately stopped. The micro switch 6 may be provided at another stop position of the carriage 1 so that each operation can be performed more accurately.

Further, as for the connecting mechanism 3, the hook-shaped member 31 may be mounted on the cutter mechanism 2 and the protruding member 32 may be provided on the carriage 1.

FIGS. 3 and 4 show cutter mechanisms 22 and 23 having cutter blades 22a and 23a having different shapes from the cutter blade 21 shown in the first embodiment.

The cutter mechanism 22 of FIG. 3 has a central shaft 22b.
Disk-shaped cutter blade 2 that is rotatably locked by
2a, the outer periphery of which is sharply sharpened. The cutter mechanism 22 uses the cutter blade 22 with a part of the outer periphery exposed.
It has a space 22c containing a. The cutter blade 22a comes into contact with the printing paper P, cuts while rotating, and the entire outer circumference comes into contact with the printing paper P, so that the entire blade deteriorates little by little. The durability is better than that of a cutter blade that contacts the paper P.

The cutter mechanism 23 shown in FIG.
It is a disc-shaped cutter blade 23a that is rotatably locked by b, its outer periphery is sharply sharpened, and
Concave notches are provided on the outer periphery at even intervals.
The cutter mechanism 23 has a space 23c that encloses the cutter blade 23a in a state where a part of the outer periphery is exposed. The cutter blade 23a makes contact with the printing paper P, and by moving the cutter mechanism 23 while rotating, it is possible to form a chain line cut on the paper surface of the printing paper P.
This chain-shaped cut can maintain a state where it can be easily separated without using a tool.

A second embodiment will be described with reference to FIG. In the second embodiment, as the connecting mechanism 34, an electromagnet 35 is provided on the carriage 1 side and an iron piece 36 which is a magnetic body is provided on the cutter mechanism 2 side, and the electromagnet 35 and the iron piece 36 are arranged so as to face each other. ing. The structure of other parts is the first
It is similar to the embodiment.

The operation of the second embodiment will be described. When the carriage 1 is moved to a position (position B in FIG. 2) adjacent to the cutter mechanism 2 by the carriage moving mechanism 4 when the printing paper P is cut after printing is performed as in the first embodiment, the electric The carriage 1 and the cutter mechanism 2 are connected by exciting the iron piece 36 by exciting the electromagnet 35 by signal control of the section. Further, when the cutting of the printing paper P is completed, the excitation of the electromagnet 35 is stopped at the position B, so that the carriage 1 and the cutter mechanism 2 are separated.

In the second embodiment, the connecting mechanism 34 is an electromagnet 35.
Since it is composed of the magnetic body 36 and the magnetic body 36, even if the positional relationship between the carriage 1 and the cutter mechanism 2 at the time of connection is slightly different, the attractive action of the electromagnet 35 ensures good connection operation. It is not necessary to control the coupling operation and form each component forming the coupling mechanism 34 with high precision, and thus the manufacturing cost can be reduced.

In the second embodiment, the connecting mechanism 34
Alternatively, the electromagnet 35 may be provided in the cutter mechanism 2 and the iron piece 36 may be provided in the carriage 1.

A third embodiment will be described with reference to FIGS. 6 to 7. In the third embodiment, the connecting mechanism 8 has a guide plate 80 having a W-shaped guide groove 81 provided on the cutter mechanism 2 and an engaging projection 82 for engaging the guide groove 81 at the tip.
It is composed of an arm member 82 provided with a and fixedly mounted on the carriage 1, and the other structure is the same as that of the first embodiment.

The guide plate 80 has a W-shaped guide groove 81 on its upper surface, and two opening portions 81b of the guide groove 81,
81f is an arm member 8 fixedly mounted on the carriage 1.
It is arranged so as to face the engaging protrusion 82a vertically provided at the tip of the second member. Further, the guide plate 80 is rotatably supported by the cutter mechanism 2 by a center shaft 80a, and a current position return spring 80b is engaged with the center shaft 80a. One end is fixed to the cutter mechanism 2 and the other end is fixed to the guide plate 80, and the guide plate 80 is biased so as to always face a fixed direction.

On the other hand, the arm member 82 fixed on the carriage 1 facing the cutter mechanism 2 is provided with a cylindrical engaging projection 82a having a width which allows loose insertion into the W-shaped guide groove 81 at the tip thereof. It is set up.

The cutting operation of the third embodiment will be described with reference to FIGS. 2, 6 and 7. When connecting, the carriage 1 is moved to a position adjacent to the cutter mechanism 2 as in the cutting operation shown in the first embodiment.

The W-shaped guide plate 80 has openings 81b,
The side surface 81a having 81f is formed in an arc shape inclined from the opening portion 81f to the opening portion 81b, and when the carriage 1 approaches the cutter mechanism 2, the engaging protrusion 82a.
Contacts the side surface 81a, slides on the side surface 81a, and enters the opening 81b. At this time, the guide plate 80 is pressed by the driving force of the carriage 1 and rotates in the p direction. Further, since the guide plate 80 is biased in the q direction by the movement operation of the carriage 1 and the current position return spring 80b of the guide plate 80, the engagement protrusion 82a moves to the bent portion 81c of the guide groove 81. At this time, the carriage 1 is
At position B in.

The carriage 1 is at position D for cutting.
When it starts to move toward, the engaging projection 82a slides in the W-shaped guide groove 81 and moves from the bent portion 81c to the bent portion 8c.
Move to 1d. Since the engagement protrusion 82a is locked by the bent portion 81d, the printing paper P is cut while the cutter mechanism 2 is pulled by the carriage 1.

After cutting the print paper P, the carriage 1 moves to return from the position D to the position B again. At this time, since the carriage 1 moves by pushing the cutter mechanism 2, the engagement protrusion 82a moves in the W-shaped guide groove 81 from the bent portion 81d to the bent portion 81e.

When the carriage 1 returns to the home position, the engaging projection 82a moves from the bent portion 81e of the guide groove to the opening 81f, so that the guide groove 81 and the engaging projection 82a are engaged with each other. Then, the carriage 1 and the cutter mechanism 2 are released.

In the third embodiment, when the arm member 82 having the engaging projection 82a that engages with the W-shaped guide groove 81 is used, the connection is made by mechanical engagement, so that the electrical connection is achieved. Circuits, wiring, etc. are not required, and failures such as wiring contact failure do not occur, and the maintainability of the device can be maintained high.

In this third embodiment, the arm member 82
Alternatively, the guide plate 80 may be fixed by freely rotating. Further, the guide plate 80 may be mounted on the carriage 1 and the arm member may be mounted on the cutter mechanism 2.

Here, the cutter mechanism 2 of each of the above embodiments
May have the structure shown in FIG. The cutter mechanism 2 shown here is formed of an elastic member such as a mold, and has a carriage guide 52 and a sub guide 53.
In place of the holes for inserting and inserting, claw-shaped members 24 and 25 for sandwiching and inserting each are provided. The claw-shaped members 24 and 25 are formed such that the lower ends thereof in FIG. 8 are slightly narrower than the carriage guide 52 and the sub guide 53, and the carriage mechanism 52 and It has a structure that can be freely removed from the sub guide 53. With this structure, when the cutter blade 21 provided in the cutter mechanism 2 needs to be replaced due to damage or the like, the cutter blade 21 can be replaced by removing it from the carriage guide 52 and the sub guide 53, so that the operation can be performed easily and safely. be able to.

In each of the above embodiments, the thermal head is used as the print head 5, but other serial type print heads (for example, dot impact type) may be used.

[0061]

According to the present invention as set forth in claims 1 to 9,
After printing is performed in a state where the carriage does not connect the cutter mechanism, the cutter mechanism is connected to the carriage by the connection mechanism, and the cutter mechanism moves along with the carriage along the carriage guide to cut the printing paper.

According to the above operation, cutting is performed in the same manner as in the case where the cutter mechanism is mounted on the conventional carriage, and at the time of printing, the cutter mechanism is detached from the carriage, so that the printing is performed only by the carriage. In addition, the moment of inertia corresponding to the weight of the cutter mechanism is reduced, and the occurrence of vibration during the reciprocating movement of the carriage during printing is suppressed. Therefore, according to the present invention, the image quality in printing is improved, it is possible to cope with the increase in the moving speed of the carriage, and it is possible to realize the accompanying increase in the printing speed.

Further, in the present invention according to claim 6, since the connecting mechanism is composed of the electromagnet and the magnetic body, even if the positional relationship between the carriage and the cutter mechanism at the time of connection is slightly displaced, the electromagnet is formed. Since the connecting operation is performed satisfactorily by the suction action of No. 1, it is not necessary to control the connecting operation and form each part of the connecting portion with high accuracy, and therefore, it is possible to provide a printing apparatus with a low forming cost and good economy. it can.

Further, in the present invention according to claim 7, the connecting mechanism is constituted by a guide plate provided with a W-shaped guide groove, and an arm member having an engaging projection for engaging with the W-shaped guide groove. However, since the connection is performed by mechanical engagement, electrical wiring or the like is unnecessary, and it is possible to prevent the occurrence of a failure such as a defective contact of the wiring and maintain the apparatus with high maintainability.

Further, according to the present invention of claim 8, since the locking member of the cutter mechanism is provided, the cutter mechanism is held at one end of the carriage guide during printing, even if there is vibration due to printing. Suitable printing can be performed without disturbing the printing operation of.

Further, according to the present invention of claim 9, the cutter mechanism is structured such that it can be freely removed from the carriage guide, so that it becomes necessary to replace the cutter blade provided in the cutter mechanism due to damage or the like. In case of damage, you can replace it by removing it from the carriage guide.
It can be done easily and safely.

[Brief description of drawings]

FIG. 1 is a partially omitted perspective view showing a first embodiment of the present invention.

FIG. 2 is a plan view showing a cutting operation of the first embodiment with a part omitted.

FIG. 3 is a main part explanatory view showing another example of the cutter mechanism disclosed in FIG. 1.

FIG. 4 is a main part explanatory view showing still another example of the cutter mechanism disclosed in FIG. 1.

FIG. 5 is an explanatory view of a main part showing a second embodiment.

FIG. 6 is a plan view in which a part of a guide plate that constitutes the connecting mechanism of the third embodiment is omitted.

7A and 7B are explanatory views showing a connecting operation of the third embodiment, FIG. 7A is a view showing a state before being connected, and FIG. 7B is a view showing a connecting state.

FIG. 8 is a partially omitted side view showing another example of the cutter mechanism disclosed in FIG. 1.

FIG. 9 is a side view with a part omitted and a part cut away showing a conventional example.

[Explanation of symbols]

 1 Carriage 2 Cutter Mechanism 3, 8, 34 Coupling Mechanism 4 Carriage Moving Mechanism 5 Print Head 7 Locking Member 10 Printing Device 21, 22a, 23a Cutter Blade 31 Key-shaped Member 32 Projecting Member 35 Electromagnet 36 Iron Piece (Magnetic Member) 52 Carriage Guide 80 Guide plate 80b Current position return spring 81 Guide groove 82 Arm member 82a Engagement protrusion P Printing paper

Claims (9)

[Claims] 1. A print head arranged to face a print sheet, a carriage on which the print head is mounted, a carriage guide arranged along the width direction of the print sheet and guiding the carriage, In a printing apparatus having a carriage moving mechanism that applies a moving force to a carriage, a cutter mechanism that has a cutter blade that comes into contact with the printing paper and that is moved by being guided by the carriage guide, and a cutter mechanism that operates the cutter mechanism according to an operation command. A printing apparatus comprising: a connection mechanism that connects or disconnects with the carriage. 2. The printing apparatus according to claim 1, further comprising a cutter blade that is fixed to the cutter mechanism and that abuts the printing paper at an angle. 3. The cutter mechanism is equipped with a disc-shaped cutter blade rotatably.
The printing device described. 4. The printing apparatus according to claim 3, wherein concave cutouts are provided at predetermined intervals on the outer circumference of the disk-shaped cutter blade. 5. The connecting mechanism comprises a hook-shaped member mounted on the carriage and a projection member mounted on the cutter mechanism and engageably engaged with the hook-shaped member. The printing device according to 1, 2, 3, or 4. 6. The coupling mechanism comprises an electromagnet mounted on the carriage and a magnetic member mounted on the cutter mechanism.
The printing device described. 7. The engagement mechanism, wherein the connecting mechanism engages with a guide plate having a W-shaped guide groove provided on the cutter mechanism, and the W-shaped guide groove provided on the carriage. An arm member having a protrusion, the guide plate being rotatably provided so as to guide the engaging protrusion along the W-shaped guide groove, and the opening portion of the guide groove being engaged with the engaging member. The printing apparatus according to claim 1, 2, 3, or 4, wherein a current position return spring is attached to the guide plate so as to face the direction in which the mating protrusion faces. 8. A locking member for locking the cutter mechanism, which is separated from the carriage, is provided near one end of the carriage guide. , 5, 6 or 7 printing device. 9. The printer according to claim 1, wherein the cutter mechanism is detachably mounted on the carriage guide.