JP2001334650A - Ink jet printer preventing leakage of ink - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ink jet printer in which ink is prevented from leaking out even if the body is inclined when the ink jet printer is transported or housed. SOLUTION: In an ink jet printer printing on a sheet P by means of an ink carriage 6 reciprocating along a guide shaft 5, an inner frame 2 comprising the ink carriage 6 and its drive system 20 is supported to oscillate freely on the outer frame 1 of a printer body such that the inner frame 2 is held in vertical state thus preventing ink from leaking out through the ink filling port 9 or the atmospheric vent 10 of an ink tank 11 provided in the ink carriage 6 even if the printer body is inclined.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink jet printer, and more particularly, to an ink jet printer, in which ink does not leak from an ink filling port or an air vent of an ink tank provided in an ink carriage even when the main body is tilted during transportation or storage. The present invention relates to an ink jet printer configured as described above.

[0002]

2. Description of the Related Art In an ink jet printer, an ink tank provided in an ink carriage which is scanned and moved for printing on paper is provided with an ink filling port for replenishing ink and an ink container for ink consumption. An air vent is provided for introducing air into the ink tank.

For example, Japanese Patent Application Laid-Open No. Hei 9-183183 discloses that an ink filling port 103 is provided above an ink replenishing chamber 102 in an ink tank 101, Discloses a configuration in which an air vent 105 is provided. In such a configuration, the ink filling port 103 and the air vent 105 are connected to the ink tank 10.
By arranging it at the upper position of 1, the ink is prevented from leaking during normal use.

[0004]

However, in the above-described conventional configuration, when the printer body is tilted when transporting or storing the ink jet printer, the ink tank 101 is also tilted. If the user forgets to seal the ink filling port 103 with the stopper 106 after filling the ink, the ink leaks from the ink filling port 103 without fail.

[0005] Even if the ink filling port 103 is closed by the stopper 106, the ink may leak if the stopper 106 comes off after being transported for a long time. Also,
Depending on the inclination state of the ink tank 101, a large amount of ink flows from the ink replenishment chamber 102 to the air passage chamber 104 via the small holes 108, and the supply of ink to the negative pressure generating member 107 becomes excessive, and the excess Ink is released into the air vent 105
May leak to the outside.

The present invention has been made in view of such circumstances, and has as its object to provide an ink jet printer in which ink does not leak even when the main body is tilted during transportation or storage.

[0007]

According to the present invention, means for solving the above-mentioned problems are constituted as follows.

(1) In an ink jet printer for printing on paper by an ink carriage reciprocating along a guide shaft, an inner frame provided with the ink carriage and its driving system is swingable on an outer frame of the printer body. It is characterized by being supported.

In this configuration, the ink carriage is held in a vertical state by its own weight without any special consideration during transportation or storage, so that the ink in the ink tank provided in the ink carriage is maintained. Leakage of ink from the filling port and the air vent is prevented.

(2) In an ink jet printer for printing on paper by an ink carriage reciprocating along a guide shaft, an inner frame having the ink carriage, its driving system, and a paper transport system for transporting the paper is provided by a printer. It is swingably supported by the outer frame of the main body.

In this configuration, the ink carriage is held vertically by its own weight without any special consideration during transportation or storage, so that the ink in the ink tank provided in the ink carriage is maintained. Leakage of ink from the filling port and the air vent is prevented.

(3) a lock mechanism for locking the inner frame in a fixed state with the outer frame of the printer body;
And a carrying handle provided on the outer frame for releasing the locked state of the lock mechanism.

In this configuration, when printing is performed, the inner frame is fixed to the outer frame by the lock mechanism, so that the printing state is stabilized and high quality printing is possible. On the other hand, when transporting or storing, if the lock mechanism is released by operating the carrying handle, the ink carriage is held vertically, preventing ink from leaking from the ink filling port and air vent. Is done.

(4) An electromagnet for fixing the inner frame in close contact with the outer frame of the printer main body by power-on operation, and separating the inner frame from the outer frame of the printer main body by power-off operation. It is characterized by being provided.

In this configuration, when printing is performed, the inner frame is fixed to the outer frame by the electromagnet, so that the printing state is stabilized and high quality printing is possible. On the other hand, at the time of transportation or storage, the electromagnetic force of the electromagnet is released, and the inner frame is separated from the outer frame of the printer body, whereby the ink carriage is held in a vertical state, and the ink filling port and the air vent are provided. Ink is prevented from leaking.

(5) In an ink jet printer for printing on a sheet by an ink carriage reciprocating along a guide shaft, the ink carriage is swingably supported by an outer frame of the printer body, and the printer body is A joint for separating the ink carriage from a drive belt provided on the outer frame when tilted is provided between the ink carriage and the drive belt.

In this configuration, the ink carriage is separated from the drive belt and held in a vertical state during transportation or storage, so that ink leaks from the ink filling port and the air vent. Is prevented.

(6) The joint is formed by an electromagnet operated by turning on / off a power supply.

In this configuration, at the time of printing, the ink carriage and the drive belt are fixed in close contact with each other by turning on the power supply. For example, when the power is turned off, the ink carriage is separated from the drive belt and held in a vertical state, thereby preventing the ink from leaking from the ink filling port and the air vent.

(7) A ballast sufficiently heavier than the ink carriage is provided below the ink carriage.

In this configuration, since a sufficiently heavy ballast is provided at the lower portion of the ink carriage, the ink carriage is always in a vertical state during transportation and storage, and the ink filling port provided in the ink tank or the like is always provided. Leakage of ink from the air vent is reliably prevented.

[0022]

2 to 4 show an ink jet printer according to a first embodiment of the present invention. FIG. 2 is a vertical sectional front view of the ink jet printer, and FIG. 3 is a vertical sectional side view of the same. As shown in these figures, the frame structure of the printer main body is composed of an outer frame 1 and an inner frame 2,
Both sides of the inner frame 2 are swingably (rotatably) supported by supporting shafts 3 and 4 fixed to both sides of the outer frame 1,
In the free state, the inner frame 2 is held vertically by its own weight as shown in the figure.

An ink carriage 6 is slidably provided on a guide shaft 5 erected (in the left-right direction) on the inner frame 2, and the ink carriage 6 is moved by a belt drive motor 7 provided on the inner frame 2. Attached to the driven driving belt 8, reciprocating along the guide shaft 5,
The paper (recording paper) P carried into the lower part of the outer frame 1 is scanned in the left-right direction. The ink carriage 6 is provided with an ink tank 11 having an ink filling port 9 and an air vent 10 at its upper part. During scanning, the ink supplied from the ink tank 11 to the print head 12 is supplied to the paper P.
The printing is performed by ejecting the ink.

As described above, the inner frame 2 is provided with the ink carriage 6 and its drive system 20, that is, the guide shaft 5, the belt drive motor 7, and the drive belt 8, and these are integrated with the inner frame 2. Thus, it is configured to freely swing (rotate) around the support shafts 3 and 4.

In the ink jet printer constructed as described above, when the printer main body is transported or stored, if the carrying handle 14 attached to the side wall 13 of the outer frame 1 is gripped and leaned, as shown in FIG. It becomes a state. That is, while the outer frame 1 is turned by 90 degrees, the inner frame 2 is swung by its own weight, and is held in a vertical state as shown in the figure. In this posture, since the ink tank 11 is also in the vertical state, the ink filling port 9 and the air vent 10 are in the upper position and are in the upward state, so that ink leakage is avoided.

When carrying or moving, the outer frame 1
4 tilts and swings at various angles in addition to the posture as shown in FIG. 4 (not shown), but since the inner frame 2 is swingable with respect to the outer frame 1, The vertical position can be maintained by its own weight, and leakage of ink can be prevented.

FIGS. 5 to 7 show an ink jet printer according to a second embodiment of the present invention. In this case, when the ink carriage 6 is performing a printing operation, a lock mechanism 15 that locks the inner frame 2 having the ink carriage 6 and its drive system 20 in a fixed state with the outer frame 1 is provided, and During storage, the lock mechanism 15 is linked to the carrying handle 14 so that the locking state of the lock mechanism 15 is released by pulling out the carrying handle 14 provided on the outer frame 1.

More specifically, the carrying handle 14 has its base fitted into a hole formed in the side wall 13 of the outer frame 1 so as to be able to be pushed out and pulled out, and has a handle lock 16 at the inner end of the base of the carrying handle 14. Are formed protrudingly, and a concave portion 17 to which the handle lock 16 is fitted is formed on one side of the inner frame 2, and the handle lock 16 and the concave portion 17 constitute a lock mechanism 15.

FIG. 5 shows a printable state. In this state, the carrying handle 14 is pushed in, the handle lock 16 is fitted into the concave portion 17, and the inner frame 2 is fixed to the outer frame 1. Locked. Accordingly, since the ink carriage 6 is also fixed to the outer frame 1, no blurring or rattling occurs, the printing operation is stabilized, and high quality printing is possible.

On the other hand, when carrying or storing the printer body, as shown in FIG. 6, when the carrying handle 14 is pulled out, the handle lock 16 is disengaged from the concave portion 17 of the inner frame 2 and the lock mechanism 15 is locked. The state is released. In this state, when the printer main body is tilted upright, the inner frame 2 provided with the ink carriage 6 and its drive system 20 swings around the support shafts 3 and 4, and as shown in FIG. Thus, the ink carriage 6 is held in a vertical state. Therefore, the ink filling port 9 and the air vent 10 are located above the ink tank 11, and
Since the ink is directed upward, leakage of the ink to the outside is prevented.

FIGS. 8 to 11 show an ink jet printer according to a third embodiment of the present invention. In this case, when the ink carriage 6 is performing a printing operation, the power supply is turned on to fix the ink frame 6 and the inner frame 2 provided with the drive system in close contact with the outer frame 1, while transporting or storing the ink frame 6. Sometimes, an electromagnet 19 is provided to separate the inner frame 2 from the outer frame 1 by a power-off operation.

More specifically, as shown in FIGS. 8 and 10 which are enlarged views of a main part viewed from the side of the printer body, an iron plate (magnetic material) fixed to one side of the inner frame 2
18 is configured to be attracted / separated by the electromagnetic force of an electromagnet 19 fixed inside the side wall portion 13 of the outer frame 1, and in a printable state, by turning on the power supply, the iron plate 18 FIG. 10
As shown in (1), the inner frame 2 is firmly integrated with the outer frame 1. In such a state, the ink carriage 6 is also fixed to the outer frame 1, so that blurring and rattling do not occur, the printing operation is stabilized, and high-quality printing can be performed.

On the other hand, when transporting, moving or storing the printer main body, the power supply is turned off to separate the iron plate 18 from the electromagnet 19 as shown in FIG. Is tilted, the inner frame 2 having the ink carriage 6 and its drive system 20 swings about the support shafts 3 and 4, and as shown in FIG. Are held in a vertical state. Therefore, the ink filling port 9 and the air vent 10
Is located at the upper position of the ink tank 11 and is directed upward, so that leakage of ink to the outside is prevented.

FIGS. 12 to 14 show an ink jet printer according to a fourth embodiment of the present invention. In this case, in addition to the ink carriage 6 and its drive system 20, the inner frame 2 is used to convey the paper P. Is provided. The paper transport system 21 includes a roller driving motor 22
And the pickup roller 2 driven by the motor 22
3, a transport roller 24, a paper guide 25, and the like.

Both sides of the inner frame 2 are swingably (rotatably) supported by support shafts 3 and 4 fixed to both sides of the outer frame 1. In the free state, the inner frame 2 is shown in FIG. As shown in FIG. 13 and FIG. 13, it is held vertically by its own weight. Reference numeral 26 denotes a paper feed guide, and 27 denotes a paper discharge tray, both of which are attached to the outer frame 1 so as to be freely stored.

In the ink jet printer constructed as described above, when the printer main body is transported or stored, the carrying handle 14 attached to the side wall 13 of the outer frame 1 is gripped and leaned, as shown in FIG. It becomes a state. That is, the outer frame 1 is turned by 90 degrees, but the inner frame 2 swings by its own weight, and is held in a vertical state as shown in the figure.
In this posture, since the ink tank 11 is also in the vertical state, the ink filling port 9 and the air vent 10 are in the upper position and are in the upward state, so that ink leakage is avoided.

When carrying or moving, the outer frame 1
14 tilts and swings at various angles in addition to the posture shown in FIG. 14 (not shown). However, since the inner frame 2 is swingable with respect to the outer frame 1, The vertical position can be maintained by its own weight, thereby preventing ink leakage.

FIGS. 15 to 17 show an ink jet printer according to a fifth embodiment of the present invention. In this case, at the time of printing, the inner frame 2 provided with the ink carriage 6 and its drive system 20 and paper transport system 21 is used. A lock mechanism 15 that locks the outer frame 1 in a fixed state is provided, and the lock state of the lock mechanism 15 is released by pulling out the carrying handle 14 provided on the outer frame 1 during transportation or storage. The mechanism 15 is linked with the carrying handle 14.

The carrying handle 14 has its base inserted into a hole formed in the side wall 13 of the outer frame 1 so as to be able to be pulled out and pulled out, and a handle lock 16 protrudes from the inner end of the base of the carrying handle 14. And the concave portion 1 into which the handle lock 16 is fitted.
7 is formed on one side of the inner frame 2, and the handle lock 16 and the concave portion 17 constitute a lock mechanism 15.

FIG. 15 shows a state in which the printing operation is possible. In this state, the carrying handle 14 is pushed in, the handle lock 16 is fitted into the concave portion 17, and the inner frame 2 is moved.
Are locked in a fixed state with respect to the outer frame 1. Accordingly, since the ink carriage 6 is fixed to the outer frame 1, no blurring or rattling occurs, the printing operation is stabilized, and high quality printing is possible.

On the other hand, when carrying or storing the printer body, as shown in FIG. 16, when the carrying handle 14 is pulled out, the handle lock 16 is disengaged from the concave portion 17 of the inner frame 2 and the locked state is released. . In this state, when the printer body is tilted upright, as shown in FIG. 17, the inner frame 2 having the ink carriage 6, its drive system 20 and the paper transport system 21 swings around the support shafts 3 and 4. The ink carriage 6 is moved by its own weight, and the ink carriage 6 is held in a vertical state. Therefore, since the ink filling port 9 and the air vent 10 are located at the upper position of the ink tank 11 and face upward, the leakage of the ink to the outside is prevented.

FIGS. 18 and 19 show an ink jet printer according to a sixth embodiment of the present invention. In this case, at the time of printing, by turning on the power, the inner frame 2 including the ink carriage 6 and its drive system 20 and the paper transport system 21 is fixed to the outer frame 1 in a tight state, and during transportation and storage. The electromagnet 19 that separates the inner frame 2 from the outer frame 1 by turning off the power supply,
It is provided at the joint between the inner frame 2 and the outer frame 1. See FIGS. 8 and 9 for the joint.

In such a configuration, an iron plate 18 as a magnetic material fixed to one side of the inner frame 2 and an electromagnet 19 fixed inside the side wall 13 of the outer frame 1
In a printable state, the power supply is turned on to join by electromagnetic force, and the inner frame 2 is firmly integrated with the outer frame 1 as shown in FIG.
In such a state, the ink carriage 6 is also fixed to the outer frame 1, so that blurring and rattling do not occur, the printing operation is stabilized, and high-quality printing can be performed.

On the other hand, when the printer body is transported, moved or stored, the power supply is turned off to separate the iron plate 18 from the electromagnet 19, and in this state,
When the printer body is tilted upright, the inner frame 2 including the ink carriage 6, its drive system 20 and the paper transport system 21 swings around the support shafts 3 and 4, and as shown in FIG. By its own weight, the ink carriage 6 is held in a vertical state. Therefore, the ink filling port 9 and the air vent 10
Is located at the upper position of the ink tank 11 and faces upward, so that leakage of ink to the outside is prevented.

FIGS. 20 to 26 show an ink jet printer according to a seventh embodiment of the present invention. In this case, when the printer body is tilted during transportation or storage, the ink carriage 6
However, it is configured to be separated from the drive belt 8 and held in a vertical state, so that ink does not leak from the ink filling port 9 and the air vent 10 of the ink tank 11 provided in the ink carriage 6.

More specifically, the ink carriage 6 is detachably joined to the drive belt 8 via a joining section 31. As shown in FIGS. 23 and 24, which are enlarged views of the main part of the printer main body when viewed from above, one of the engaging teeth 32 formed in an uneven shape is attached to the ink carriage 6. The other meshing tooth 33 having an uneven shape meshing with the meshing tooth 32 in a fitted state is attached to the drive belt 8. The joining state is shown in FIG.
FIG. 24 shows a state where the bonding is released, as shown in FIG.

A support portion 28 is provided at a position immediately above the joining portion 31 in the ink carriage 6 to protrude therefrom.
The guide shaft 5 laid in the left and right direction on the inner frame 2 is slidably and rotatably inserted into a guide hole 29 formed in the support portion 28 in a penetrating manner. Therefore, the ink carriage 6 is slidably and rotatably supported by the guide shaft 5, and the inner frame is not provided.

With such a configuration, in a state where the ink carriage 6 is joined to the drive belt 8 via the joining portion 31, the ink carriage 6 is moved to scan left and right along the guide shaft 5 to enable printing. Become.

On the other hand, when the joining state of the joining portion 31 is released, the ink carriage 6 moves around the guide shaft 5 as an axis.
It swings (rotates) under its own weight and becomes vertical. Therefore, when the printer main body is transported or stored, if the printer main body is tilted 90 degrees while holding the carrying handle 14, the meshing teeth 32, 33 are disengaged at the joint portion 31, and FIG. As shown, the ink carriage 6 swings by its own weight and is in a vertical state. In this state, the ink filling port 9 and the air vent 10 are
1 and is directed upward, so that leakage of ink is prevented.

FIG. 25 and FIG. 26 show different examples of the joint 31. In this case, the joint 31 is
4 and the electromagnet 35, and when performing a printing operation,
By turning on the power, the ink carriage 6 and the drive belt 8 are fixed in a close contact state, and during transportation or storage, the ink carriage 6 is separated from the drive belt 8 by turning off the power. ing. Specifically, an iron plate 34 is attached to the ink carriage 6, and an electromagnet 35 is attached to the drive belt 8.

With this configuration, at the time of printing, when the power is turned on, the ink carriage 6 is joined to the drive belt 8 by the attraction force of the electromagnet 35 as shown in FIG. On the other hand, when transporting, moving, or storing the printer main body, by turning off the power, the iron plate 34 is separated from the electromagnet 35 as shown in FIG. In this state, when the printer main body is tilted upright, as shown in FIG.
Swings around the guide shaft 5 and is held vertically by its own weight. Therefore, the ink filling port 9 and the air vent 10 are located above the ink tank 11 and face upward, so that the leakage of ink is prevented.

FIGS. 27 and 28 show an ink jet printer according to an eighth embodiment of the present invention. In this case, by providing the ink carrier 6 with the ballast 41,
If the printer is transported or stored with the printer tilted,
The ink carriage 2 can be more reliably maintained in the vertical state.

Specifically, even if the position of the center of gravity of the ink carriage 6 changes due to a change in the amount of ink in the ink tank 11, the ink carriage 6 is always held in a vertical state by its own weight. A ballast 41 which is sufficiently heavier than the ink carriage 6 having the ink tank 11 and the print head 12 is attached to a lower portion of the ink carriage 6.

According to such a configuration, when the printer main body is transported or stored, if the printer main body is tilted upright by 90 degrees while holding the carrying handle 14, the joint portion 31 comes off and is shown in FIG. As described above, the ink carriage 6 rotates around the guide shaft 5 by its own weight, and enters the vertical state. In this state, the ink filling port 9 and the air vent 10 are at the upper position of the ink tank 11 and are in the upward state, so that the leakage of the ink is prevented. 23 and 24 or FIGS. 25 and 26
Can be applied.

[0055]

The present invention has the following effects.

(1) Since the inner frame provided with the ink carriage and its drive system is always held vertically, the ink carriage can be vertically moved without any special consideration during transportation or storage. Since it is in a state and does not tilt, it is possible to prevent ink from leaking from an ink filling port or an air vent of an ink tank provided in the ink carriage.

(2) Since the inner frame including the ink carriage, its driving system, and the paper transport system for transporting the paper is always kept in a vertical state, special consideration should be given to transportation and storage. Even if this is not done, since the ink carriage is in a vertical state and does not tilt, it is possible to prevent ink from leaking from an ink filling port or an air vent of an ink tank provided in the ink carriage.

(3) Since the lock mechanism for locking the inner frame to the outer frame of the printer body in a fixed state is provided and the carrying handle for releasing the locked state is provided on the outer frame, printing is performed. At times, the inner frame is fixed to the outer frame by the lock mechanism, so that the printing state is stabilized and high-quality printing is possible. On the other hand, when the lock mechanism is released by operating the carrying handle during transportation or storage, the ink carriage is held vertically, preventing ink from leaking from the ink filling port and air vent. can do.

(4) An electromagnet for fixing the inner frame in close contact with the outer frame of the printer main body by a power-on operation, and separating the inner frame from the outer frame of the printer main body by a power-off operation. Because of the provision, the printing state is stabilized, and high-quality printing becomes possible. On the other hand, at the time of transportation or storage, the electromagnetic force of the electromagnet is released, and the inner frame is separated from the outer frame of the printer body, whereby the ink carriage is held in a vertical state, and the ink filling port and the air vent are provided. Can be prevented from leaking.

(5) When the printer main body is tilted, the ink carriage separates from the drive belt. Therefore, during transportation or storage, the ink carriage is separated from the drive belt and held in a vertical state. Therefore, leakage of the ink from the ink filling port and the air vent can be prevented.

(6) Since the joining portion is formed by an electromagnet which is operated by turning on / off the power supply, when printing is performed, the ink carriage and the drive belt are fixed in a close contact state by turning on the power supply. In addition, while the ink carriage performs a predetermined printing operation, during transportation or storage, the ink carriage is separated from the drive belt and held in a vertical state by an operation of turning off the power supply. Can be prevented from leaking.

(7) A sufficiently heavy ballast is provided below the ink carriage, so that it can be transported or stored.
At all times, the ink carriage is always in the vertical state, and it is possible to reliably prevent the ink from leaking from the ink filling port and the air vent provided in the ink tank.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a configuration of a conventional ink tank.

FIG. 2 is a vertical sectional front view of the inkjet printer according to the first embodiment of the present invention.

FIG. 3 is a vertical sectional side view of the same.

FIG. 4 is a vertical side view at the time of storage.

FIG. 5 is a vertical sectional side view of an inkjet printer according to a second embodiment of the present invention.

FIG. 6 is a longitudinal sectional side view of a state where the carrying handle is pulled out.

FIG. 7 is a vertical sectional side view of the housed state.

FIG. 8 is an enlarged view showing a joined state of electromagnets of an ink jet printer according to a third embodiment of the present invention.

FIG. 9 is an enlarged view showing a state in which the electromagnet is disconnected.

FIG. 10 is a vertical sectional front view of the printer main body in a printable state.

FIG. 11 is a vertical sectional front view at the time of storage.

FIG. 12 is a vertical sectional front view of an ink jet printer according to a fourth embodiment of the present invention.

FIG. 13 is a vertical sectional side view of the same.

FIG. 14 is a vertical sectional side view at the time of storage.

FIG. 15 is a vertical sectional side view of an inkjet printer according to a fifth embodiment of the present invention.

FIG. 16 is a longitudinal sectional side view showing a state where the lock state of the lock mechanism is released.

FIG. 17 is a vertical sectional side view at the time of storage.

FIG. 18 is a vertical sectional side view of an ink jet printer according to a sixth embodiment of the present invention.

FIG. 19 is a vertical sectional side view at the time of storage.

FIG. 20 is a vertical sectional front view of an ink jet printer according to a seventh embodiment of the present invention.

FIG. 21 is a vertical sectional side view of the same.

FIG. 22 is a vertical cross-sectional side view at the time of storage.

FIG. 23 is an enlarged view showing a joining state of the joining portion.

FIG. 24 is an enlarged view showing a state in which the bonding of the bonding portion has been released.

FIG. 25 is an enlarged view of a bonding state showing a different example of the bonding portion.

FIG. 26 is an enlarged view showing a state in which the bonding of the bonding portion has been released.

FIG. 27 is a vertical sectional side view of an ink jet printer according to an eighth embodiment of the present invention.

FIG. 28 is a vertical sectional side view at the time of storage.

[Explanation of symbols]

 1-Outer frame 2-Inner frame 5-Guiding shaft 6-Ink carriage 8-Drive belt 14-Carrying handle 15-Lock mechanism 19-Electromagnet 20-Ink carriage drive system 31-Joint 35-Electromagnet 41-Ballast P- Paper

Continuing on the front page (72) Inventor Takateru Yamamoto 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka Sharp Corporation (72) Inventor Toshi Yamaguchi 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka Sharp Corporation F term (reference) 2C056 EA16 EC02 EC06 EC11 EC28 FA10 HA37 HA60 2C061 AQ05 BB23 DD02 DF01 DF11 DF18 DF20 DF29 HH01 HJ01 HK11 HN02 HN15

Claims (7)

[Claims] In an ink jet printer for printing on a sheet by an ink carriage reciprocating along a guide shaft, an inner frame having the ink carriage and its driving system is swingably supported by an outer frame of a printer body. An ink jet printer that prevents leakage of ink. 2. An ink jet printer which performs printing on a sheet by an ink carriage reciprocating along a guide shaft, wherein an inner frame including the ink carriage, a driving system thereof, and a sheet conveying system for conveying the sheet is provided in a printer main body. An ink jet printer which is supported by an outer frame so as to be swingable and which prevents ink from leaking. 3. A lock mechanism for locking the inner frame to a fixed state with the outer frame of the printer body, and a carrying handle provided on the outer frame for releasing the locked state of the lock mechanism. 3. The ink jet printer according to claim 1, wherein the ink is prevented from leaking. 4. The inner frame is turned on by a power-on operation.
4. An electromagnet, which is fixed to the outer frame of the printer main body in close contact with the outer frame of the printer main body and is separated from the outer frame of the printer main body by a power-off operation. An ink jet printer that prevents leakage of the ink described in Crab. 5. An ink jet printer which performs printing on a sheet by an ink carriage reciprocating along a guide shaft, wherein said ink carriage is swingably supported by an outer frame of the printer main body, and said printer main body is tilted. And a joint for separating the ink carriage from a drive belt provided on the outer frame, the joint being provided between the ink carriage and the drive belt. 6. The ink-jet printer according to claim 5, wherein said joining portion is formed by an electromagnet operated by turning on / off a power supply. 7. The ink jet printer according to claim 5, wherein a ballast sufficiently heavier than the ink carriage is provided at a lower portion of the ink carriage.