JPH0740532A - Inkjet printer - Google Patents

Abstract

(57) [Summary] [Purpose] To facilitate cartridge replacement work. A carriage 20 includes a carriage body 30 and a cartridge holder 40 that is vertically movable with respect to the carriage body and is rotatable in a clockwise direction when viewed from the right side, and the cartridge is mounted in the cartridge holder. The protrusion 50 is provided so that the cover of the printer case located above the carriage can be opened. Attached to the cartridge holder 40 are a hook member 80 for hooking and fixing the cartridge, and an operation lever 90 for activating the hook member and vertically moving and rotating the cartridge holder.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to ink jet printers. In particular, the present invention relates to an ink jet printer that enables easy replacement work (that is, attachment / detachment) of a cartridge in which a print head and an ink tank are integrally formed.

[0002]

2. Description of the Related Art Conventionally, an ink jet printer using a cartridge in which a print head and an ink tank are integrally formed is disclosed in Japanese Patent Laid-Open Nos. 3-101949 and 3-101949.
No. 104642, No. 3-104643, No. 3-104
The one disclosed in Japanese Patent No. 677 is known.

This printer can be used with the printer body placed horizontally, or as shown in FIG. 16 with the printer body 1 placed vertically and the auto feeder 2 attached to the back. be able to.

In the use state shown in FIG. 16, the state shown in FIG.
As shown in FIG. 7, the cartridge 3 in which the print head 3h and the ink tank 3t are integrally formed is mounted on a carriage (not shown) above the recording paper S that is transported in a substantially horizontal direction. The recording paper S is printed while reciprocating.

As shown in FIG. 18 (schematic front view), the cartridge 3 is provided with a hole 3a. On the other hand, the carriage has a convex portion that fits into the hole 3a of the cartridge from the rear side to the front side (from left side to right side in FIG. 17).
It is provided toward. The cartridge 3 is detachably mounted on the carriage by fitting or removing the hole 3a of the cartridge 3 from the front side of the convex portion provided on the carriage. In addition, the fitting between the hole 3a and the convex portion is utilized to electrically connect the main body side and the head side. The carriage is provided with a lever for fixing the mounted cartridge.

In the printer as described above, when the user performs the attachment / detachment operation (that is, the replacement work) of the cartridge 3, first, the cover 1c of the printer body 1 (see FIG. 1).
6) and open upwards as shown in phantom in FIG.
Then, after the fixing of the cartridge by the lever is released, the cartridge is removed along the arrow X2 direction, and then a new cartridge is attached along the arrow X1 direction and then fixed by the lever.

Reference numeral 4 is a paper discharge roller, and if the roller 4 is attached to the main body side, it interferes with the attachment / detachment of the cartridge 3 and is therefore attached to the cover 1c side.

[0008]

In the above-mentioned conventional printer, when the cartridge 3 is attached or detached, the arrow X is formed below the cover 1c opened in a substantially horizontal state.
Since it is necessary to attach and detach the cartridge in the X1 and X2 directions, there is a problem that this operation is difficult to perform.

Although the operation can be performed a little easier by completely removing the cover 1c from the main body 1, in this case, there is a problem that it takes time and effort to remove the cover 1c.

Further, the discharge roller 4 is opened and closed by the cover 1
Since it was attached to the c side, it was difficult to secure its positional accuracy.

An object of the present invention is to solve the above problems, and to provide an ink jet printer in which a cartridge can be easily attached / detached and a discharge roller need not be attached to a cover. .

[0012]

In order to achieve the above object, an ink jet printer according to a first aspect of the invention has a carriage that reciprocates above a recording sheet to be transported, and a carriage from the back side to the front side. Printing having a hole that fits in the convex portion provided on the carriage and detachably mounted on the carriage by fitting or removing this hole from the front side to the convex portion and having an ink ejection surface facing the recording paper In an ink jet printer having a head and a cartridge integrally formed with an ink tank, the carriage is attached such that at least the carriage main body and the carriage main body can be moved up and down and clockwise in right side view. And a protrusion is provided on the cartridge holder. Moni, characterized by being openably constituting the cover of the printer case located on the carriage top.

An ink jet printer according to a second aspect is the ink jet printer according to the first aspect,
The cartridge holder is characterized in that the upper part thereof rotates toward the back side and the lower part rotates toward the front side.

An ink jet printer according to a third aspect of the present invention is the ink jet printer according to the first or second aspect, wherein a hook member for hooking and fixing the cartridge is fixed to the cartridge holder, and the hook member is operated to move the cartridge holder up and down. An operating lever for moving and rotating is attached.

According to a fourth aspect of the present invention, there is provided an ink jet printer according to the first, second or third aspect, wherein the flat cable for driving and controlling the print head has conductors in the cable on the left and right sides of the carriage body. It is characterized in that it is mounted in a direction that faces inward, and between the carriage body and the cartridge holder, the conductor in the cable is mounted in a direction that runs vertically.

[0016]

According to the ink jet printer of the first aspect, the carriage reciprocates above the recording paper to be transferred, and the print head of the cartridge mounted on the carriage prints on the recording paper.

The cartridge has a print head and an ink tank formed integrally with each other, and has a hole which fits into a convex portion provided on the carriage from the rear side to the front side of the carriage. Since it is configured to be attachable to and detachable from the carriage by fitting or removing it from the convex portion, the conventional cartridge described above can be used as it is.

The carriage comprises at least a carriage body and a cartridge holder provided with the convex portion. The cartridge holder is vertically movable with respect to the carriage body and is rotated clockwise in a right side view. Since it is movably attached and the cover of the printer case located above the carriage can be opened, the cartridge replacement work (attachment / detachment operation) can be easily performed as follows.

That is, first, the cover of the printer case located at the upper part of the carriage is opened, and then the cartridge holder is moved upward with respect to the carriage main body and rotated clockwise in right side view. As a result, the convex portion provided on the cartridge holder is directed obliquely upward to the front side, so that the cartridge can be easily removed and a new cartridge can be easily attached.

Thereafter, the cartridge holder is rotated counterclockwise with respect to the carriage body in the right side view and moved downward to return to the original position, and the cover is closed to complete the work.

When the cartridge holder is simply rotated with respect to the carriage body, there is a restriction that the cartridge or the cartridge holder may interfere with the peripheral members, but before the rotation. By moving upward, the cartridge and the cartridge holder will rotate while moving toward the space opened by the open state of the cover,
It becomes difficult to be restricted by the interference with the above-mentioned peripheral members,
It becomes possible to reduce the size of the cartridge and the cartridge holder, and thus the size of the printer.

According to a second aspect of the present invention, there is provided the ink jet printer according to the first aspect, wherein the cartridge holder has an upper portion facing the back side.
Since the lower part is configured to rotate to the front side, it is possible to more effectively use the space opened by the opened state of the cover.

According to a third aspect of the present invention, there is provided an ink jet printer according to the first or second aspect, wherein the cartridge holder has a hook member for hooking and fixing the cartridge, and a cartridge holder for operating the hook member. Since an operation lever for moving and rotating the cartridge is attached, only by operating this lever, the vertical movement operation of the cartridge holder, the rotation operation, and the fixing / releasing operation of the cartridge by the hook member are performed. The replacement work of the cartridge becomes easier.

As described above, when the cartridge holder is constructed so as to be vertically movable and rotatable with respect to the carriage body, the above-mentioned conventional technique can be used for electrical connection between the cartridge and the cartridge holder, which is a problem. However, there is no related art regarding the connection between the cartridge holder and the printer body.

According to a fourth aspect of the present invention, there is provided an ink jet printer according to the first, second, or third aspect, in which the flat cable for driving and controlling the print head has a conductor in the cable for the carriage body. It is attached in the left-right direction, and since the in-cable conductor wire is attached in the up-down direction between the carriage body and the cartridge holder, it can be moved up and down and rotated also with respect to the reciprocating carriage body. The flat cable also follows the cartridge holder satisfactorily, so that a suitable electrical connection state between the cartridge holder and the printer body can be obtained.

[0026]

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

1 and 2 are views showing an embodiment of an ink jet printer according to the present invention. FIG. 1 is an external perspective view showing a state in which a cover is opened, and FIG. 2 is a part showing a state in which an upper case is removed. It is an abbreviated perspective view.

First, the outline of the printer will be described with reference to these drawings.

Reference numeral 10 is a printer, 10a is a lower case of the printer, 10b is an upper case, 10c is an openable / closable cover forming a part of the upper case 10b, 11 is a main frame, and 12 and 13 are main frames 11. It is a supporting side frame.

Reference numeral 20 denotes a carriage, which includes a platen gap adjusting lever 21 including a guide shaft 14 supported by the side frames 12 and 13 and a guide plate 15 also supported by the side frames 12 and 13 in parallel with the guide shaft 14. Guide shaft 1 so that the gap can be adjusted by
It is supported in a state in which it can be swung somewhat around four. The carriage 20 is driven by a carriage motor (not shown) via a timing belt and moves in the directions of arrows X1 and X2.

Reference numeral 16 is a paper feed roller, 17 is a paper feed roller,
Reference numeral 18 is a paper discharge roller, and 19 is a paper discharge tray.

The recording paper is fed into the printer from below the paper discharge tray 19 by the paper feed roller 16 as shown by the arrow a, is wound around the paper feed roller 17 and is inverted, and is discharged by the paper discharge roller 18 in the arrow direction. As shown in FIG.
Discharged on top. Then, in the process from the paper feed roller 17 to the paper discharge roller 18, printing is performed by the print head of the cartridge 70 mounted on the carriage 20 that moves in the directions of arrows X1 and X2.

Next, the carriage 20 will be described in detail.

FIG. 3 is a front view of the carriage, FIG. 4 is a plan view, and FIG. 5 is an exploded perspective view.

As clearly shown in these figures, particularly in FIG. 5, the carriage 20 is composed of a carriage body 30 and a cartridge holder 40.

The carriage body 30 is composed of a front plate 31, side plates 32 and 33, and a rear plate 34 in a substantially frame shape. The side plates 32 and 33 are each formed with a first guide groove 35 linearly extending in the vertical direction and a bent second guide groove 36. Second guide groove 36
Is composed of a straight line portion 36a extending linearly in the vertical direction and an inclined portion 36b inclined upward from the straight line portion 36a toward the front side. The straight line portion 36a and the first guide groove 35 are located on the same line.

On the other hand, the cartridge holder 40 has a substantially plate-shaped base portion 43 and side plates 44, 44, and a first pin 41 and a second pin 42 are formed on both side plates 44. There is. Then, these first and second pins 41 and 42
Is fitted into the first and second guide grooves 35 and 36 of the side plates 32 and 33 of the carriage body 30 to be incorporated into the carriage body 30. In the assembled state, the first and second pins 4
1, 42 are guided by the first and second guide grooves 35, 36. Therefore, the cartridge holder 40 can move up and down with respect to the carriage body 30 and can rotate clockwise in right side view. That is,
The first and second pins 41 and 42 are the first and second guide grooves 3
Based on the state of being located at the lower end of 5, 36 (see FIG.
2), the cartridge holder 40 linearly moves upward with respect to the cartridge main body 30 in the range where the second pin 42 is in the linear portion 36a of the second guide groove 36, and the second pin 42 moves the second guide 42 When entering the inclined portion 36b of the groove 36, the cartridge holder 40 moves upward and the first pin 4
It will rotate clockwise around 1 as viewed from the right side (see FIG. 12). In addition, the first pin 4 serving as the center of rotation
1 is provided at the intermediate portion in the up-down direction, the cartridge holder 40 has its upper part on the back side,
The lower part turns to the front side (see FIG. 12).

6A and 6B are a front view and a left side view of the cartridge holder, FIG. 7 is an exploded perspective view, and FIG. 8 is an exploded perspective view seen from another angle.

As shown in these figures, the cartridge holder 40 is provided with a convex portion 50 from the rear surface side (that is, the base portion 43) toward the front surface side. The structure of the convex portion 50 is similar to the structure disclosed in the above-mentioned Japanese Patent Laid-Open No. 3-101949, and the support plate 51 formed integrally with the base portion 43 and the support plate 51. Flat cable 6 arranged on the left side via a rubber pad 52
0 terminal portion 61, and a first fixing member 53 and a second fixing member 54 for fixing the terminal portion 61. The second fixing member 54 is omitted in FIG.

The terminal portion 61 of the flat cable 60 is inserted into the slit 43a (see FIG. 8) formed in the base portion 43 from the back side of the base portion 43 and is arranged on the left side of the support plate 51, and its base portion 61a. Is fixed by the first fixing member 53,
The tip 61b is fixed by the second fixing member 54. First
The fixing member 53 is fixed to the base portion 43, and the second fixing member 54 is fixed to the tip of the support plate 51. As shown in FIG. 8, a portion of the flat cable 60 near the terminal portion 61 (a portion parallel to the back surface of the base portion 43) is fixed to the back surface of the base portion 43 by the double-sided tape 62. As can be seen from FIG. 7, the flat cable 60 is attached to the carriage body 30 so that the conductors inside the cable are directed in the left and right directions.
In between, the conductor 63 in the cable is attached in the vertical direction. Reference numeral 64 denotes a double-sided tape provided on the back surface of the flat cable, which is attached to an appropriate position 34a (see FIG. 5) on the front surface of the rear plate 34 of the carriage body 30. In FIG. 5, 34b is a slit formed in the rear plate 34 for passing the flat cable 60.

Further, as shown in FIG. 7, the cartridge holder 40 mainly has a hook member 80 for hooking and fixing the cartridge 70 (see FIG. 4, etc.), and a hook member 80 for operating the hook member 80 to fix the cartridge holder 40 to the carriage body. It has an operation lever 90 for moving up and down with respect to 30, and a plate cam 100.

As shown in FIGS. 6 and 7, the hook member 80 includes a movable block 81, an elongated hole 82 formed in the movable block 81, and a hook 83 integrally formed with the movable block 81. The operation lever 90 has a recess 84 that comes into contact with the screw cam 92 formed on the operation lever 90.
The elongated hole 82 is slidably and rotatably attached by fitting the elongated hole 82 to the pin 45 provided on the base portion 43.

The operation lever 90 is an integral product, and the cylindrical portion 9
1 and a screw cam 92 formed around this cylindrical portion
An arc cam 94 formed concentrically with the cylindrical portion through the plate portion 93 on the cylindrical portion 91, a knob 95 also provided through the plate portion, and protruding rightward from the plate portion 93. Pin 9
6 and 6. The operating lever 90 has a cylindrical portion 91.
Is rotatably attached by fitting it to a cylindrical shaft portion 46 provided on the base portion 43.

Reference numeral 110 denotes a support member for the operation lever 90 and the hook member 80, which has a pin 111 and a guide portion 112 having an L-shaped cross section. The pin 111 is attached to the base portion 43 by inserting the pin 111 into the cylindrical portion 91 of the operation lever 90 and the cylindrical shaft portion 46 of the base portion 43, and the guide portion 112 guides the upper surface and the front surface of the hook member 80 in the attached state. (See FIGS. 3 and 4).
A compression spring 96 is mounted on the tubular shaft portion 46 of the base portion 43. The spring 96 urges the operation lever 90 toward the support member 110, whereby the screw cam 9 is pressed.
2 and the concave portion 84 of the hook member 80 are brought into smooth contact with each other.

As will be described later, the arc cam 94 of the operation lever 90 rotates the operation lever 90 clockwise so that the cartridge holder 40 rotates completely clockwise with respect to the carriage body 30. At this time, the cartridge holder 40 comes into contact with the protrusion 33a (see FIGS. 4 and 5) formed inside the side plate 33 of the carriage body 30 to fix the position of the cartridge holder 40 with respect to the carriage body 30.

The plate cam 100 is integrally formed with the base portion 43 in a substantially triangular shape, and has a first cam surface 101, a second cam surface 102, and a third cam surface 103. As shown in FIGS. 5, 9, and 10, the plate cam 100 is a slider 1 provided on the carriage body 30.
It comes in contact with 20.

The slider 120 has an abutting portion 121 for contacting the plate cam 100, and elliptical projections 12 formed on both sides of the slider 120.
2 and 122, the projections 122, 122 are slidably attached to the support member 123 by fitting the projections 122, 122 into the long holes 124, 124 formed in the support member 123. Support member 123 and slider 1
20 is provided with a torsion spring 125, and the torsion spring 125 always biases the slider 120 rearward (to the right in FIG. 10B). The support member 123 is attached to the carriage body 30 by screws 126.
It is fixed to.

As the cartridge 70, the same cartridge as the one disclosed in the above-mentioned Japanese Patent Laid-Open No. 3-101949 can be used. That is, in the cartridge 70, as shown in FIG. 11 and the like, the print head 71 and the ink tank 72 are integrally formed,
There is a hole 73 that fits into the above-mentioned convex portion 50.
It is configured to be attachable to and detachable from the carriage 20 by fitting or removing 3 from the front side to the convex portion 50. A terminal portion 74 connected to the terminal portion 61 of the flat cable 60 is provided on the left surface of the hole 73.

Next, the attachment / detachment operation of the cartridge 70 in the carriage 20 will be described. In addition,
It is assumed that the cover 10c (see FIG. 1) has already been opened.

To facilitate understanding, the cartridge mounting operation will be described first.

(I) When the operation lever is fully turned clockwise, as shown in FIGS. 11 and 12, the first and second pins 41 and 42 of the cartridge holder 40 are moved to the first and second positions of the carriage main body 30, respectively. Located at the upper ends of the second guide grooves 35 and 36, the cartridge holder 40 is in a state of being fully rotated clockwise with respect to the carriage body 30. In this state, since the arcuate cam 94 of the operation lever 90 is in contact with the protrusion 33a of the carriage 30, the operation lever 9
Unless 0 is rotated, the cartridge holder 40 is in a state in which it cannot rotate counterclockwise, that is, in a fixed state. Further, the slider 120 of the carriage body has a tip 104 of the plate cam 100 of the cartridge holder 40.
Are in contact.

In this state, since the convex portion 50 of the cartridge holder 40 is directed obliquely upward to the front side, the cartridge 70 can be easily attached or detached along the arrow A direction. . Figure 1
1, FIG. 12 shows the cartridge 70 with the cartridge holder 4
It shows the state of being attached to 0.

(Ii) When the operating lever 90 is rotated counterclockwise from the state shown in FIG. 12, the hook member 80 is shown in FIG. 11 in accordance with the rotation of the screw cam 92, as shown in FIG. It rotates counterclockwise from the state and moves to the right. By the operation of the hook member 80, the hook 83 is caught by the protrusion 75 of the cartridge 70, and the cartridge 70 is fixed to the cartridge holder 40 so as to rotate clockwise. At the same time, the terminal portion 61 of the flat cable 60 and the terminal portion 74 of the cartridge are connected.

Immediately after the fixing operation of the cartridge 70 by the hook member 80 is completed, the arcuate cam 94 of the operation lever 90 is disengaged from the projection 33a of the carriage 30, and thus the cartridge holder 40 is in a state of being able to move downward and rotate ( (See FIG. 14).

(Iii) Arc cam 94 of operation lever 90
At the same time that the cartridge holder 40 is disengaged from the protrusion 33a of the carriage 30, the cartridge holder 40 is swung in the counterclockwise direction promptly by the turning operation of the operation lever 90 and the own weight of the cartridge 70.

At the same time when the cartridge holder 40 starts to rotate, the tip 104 of the plate cam 100 comes off the slider 120, and the plate cam 100 also moves downward and rotates together with the cartridge holder 40 while contacting the slider 120.
When the upper portion 102a (see FIG. 14) of the second cam surface 102 of the plate cam 100 approaches the slider 120, the resistance of the slider 125 due to the torsion spring 125 increases,
The movement and rotation of the cartridge holder 40 are temporarily stopped. It should be noted that the elasticity of the torsion spring 125 causes the cushioning effect to be stopped.

Then, when the operating lever 90 is further pushed down, the slider 120 rides over the mountain portion 105 (see FIG. 15) located between the second cam surface 102 and the third cam surface 103 of the plate cam 100. , The third cam surface 103 and the slider 120 come into contact with each other, and the plate cam 100 moves to the slider 12
Cartridge holder 4 in the state of being pushed down by 0
0 is fixed to the carriage body. The state of being fixed in this way is shown in FIGS. 15 and 3 and 4, and the printing operation described above is performed in this state. 71a is an ink ejection surface.

Next, the replacement work of the cartridge 70 will be described.

(1) First, the operating lever 90 is pulled upward as shown by the arrow a in FIG. 4 and 5, reference numeral 33b denotes a finger hook portion formed on the upper part of the carriage body side plate 33. For example, a thumb of the right hand is hooked on the finger hook portion 33b, and the index finger is used as a knob 95 of the operation lever 90.
It can be pulled up easily by touching the lower surface of the and operating it.

By this operation, the cartridge holder 40 is moved upward, and the slider 120 rides over the mountain portion 105 from the third cam surface 103 of the plate cam 100 of the cartridge holder and contacts the upper portion 102a of the second cam surface 102. Stop once in the state.

(2) Next, when the operation lever 90 is fully rotated in the direction of arrow b in FIG. 15 with the knob 95, the cartridge holder 40 is rotated while moving upward, and
The state shown in 2 is obtained. In this state, as described above, the convex portion 50 of the cartridge holder 40 is directed obliquely upward to the front side, so that the cartridge 70 can be easily removed and easily attached.

After mounting, the mounting of the cartridge 70 is completed by performing the reverse operation.

When the operation lever 90 is rotated in the direction of the arrow b, the tip of the pin 96 of the operation lever 90 is brought into sliding contact with the inner surface of the carriage body side plate 33, so that the operation lever 90 can be stably rotated.

According to the printer as described above, the carriage 20 is composed of the carriage main body 30 and the cartridge holder 40 provided with the convex portion 50, and the cartridge holder 40 is placed above and below the carriage main body 30. The cartridge 70 is mounted so as to be movable and rotatable clockwise when viewed from the right side, and the cover 10c of the printer case located on the upper part of the carriage can be opened. Therefore, replacement work (attachment / detachment operation) of the cartridge 70 is easy. Can be done

Further, the discharge roller 18 is opened and closed by the cover 1
Since it is attached to the main body side instead of 0c, it is easy to secure the positional accuracy.

When the cartridge holder 40 is simply rotated with respect to the carriage body 30, the cartridge 70 or the cartridge holder 40 is provided with a peripheral member (for example, the front plate 31 of the carriage body).
However, the cartridge 70 and the cartridge holder 40 are moved toward the space (see FIG. 1) opened by the opened state of the cover 10c by moving the cartridge 70 and the cartridge holder 40 upward before rotating the cover. Since it rotates after moving, it is less likely to be restricted by the interference with the above-mentioned peripheral members, and it is possible to make the cartridge and the cartridge holder and its surroundings compact, which in turn makes the printer compact. It will be possible.

Further, since the cartridge holder 40 has a structure in which the upper part thereof rotates to the back side and the lower part rotates to the front side, the space opened by the open state of the cover 10c can be used more effectively. You can

Further, a hook member 80 for hooking and fixing the cartridge 70 on the cartridge holder 40.
And an operating lever 90 for actuating the hook member 80 and vertically moving and rotating the cartridge holder 40 are attached. Therefore, only by operating the lever 90, the vertical movement operation and the rotation operation of the cartridge holder 40 are performed. ,
And fixing of the cartridge 70 by the hook member 80 /
Since the releasing operation is performed, the replacement work of the cartridge 70 becomes easier.

Further, the flat cable 60 for driving and controlling the print head 71 is provided with respect to the carriage main body 30.
The in-cable conductor wire is attached in the left-right direction, and the in-cable conductor wire is attached in the up-down direction between the carriage body 30 and the cartridge holder 40. The flat cable 60 follows the cartridge holder 40 that moves up and down and rotates well, and thereby a suitable electrical connection state between the cartridge holder 40 and the printer body can be obtained.

It should be noted that, in order to easily perform the above-mentioned cartridge replacement work regardless of the position of the carriage 20 on the guide shaft 14, the carriage main body rear plate 34 (see FIG. 5) is provided with a rear portion. The projection 34c is integrally provided toward the. That is, when the tip of the protrusion 34b contacts the main frame 11 (see FIG. 1), the rotation of the carriage body 30 is restricted, and the lever 90 can be easily operated.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the gist of the present invention.

[0072]

According to the present invention, the mounting and demounting operation of the cartridge can be easily performed.

[0073]

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of an inkjet printer according to the present invention, and is an external perspective view showing a state in which a cover is opened.

FIG. 2 is a partially omitted perspective view showing a state in which an upper case is removed.

FIG. 3 is a front view of a carriage.

FIG. 4 is a plan view of a carriage.

FIG. 5 is an exploded perspective view of a carriage.

FIG. 6A is a front view of a cartridge holder, and FIG.
Is a left side view.

FIG. 7 is an exploded perspective view of a cartridge holder.

FIG. 8 is an exploded perspective view of the cartridge holder seen from another angle.

FIG. 9 is an exploded perspective view of a carriage body.

10A is a rear view of the slider portion, and FIG. 10B is a bb view in FIG. 10A.

FIG. 11 is an operation explanatory view.

FIG. 12 is an operation explanatory view.

FIG. 13 is an operation explanatory view.

FIG. 14 is an operation explanatory view.

FIG. 15 is an operation explanatory view.

FIG. 16 is a perspective view of a conventional printer.

FIG. 17 is a schematic left side view of a conventional printer.

FIG. 18 is a schematic front view of the cartridge.

[Explanation of symbols]

 10 Printer 10c Cover 20 Carriage 30 Carriage Body 40 Cartridge Holder 50 Convex 60 Flat Cable 70 Cartridge 71 Print Head 71a Ink Discharging Surface 72 Ink Tank 73 Hole 80 Hook Member 90 Operation Lever

Claims (4)

[Claims] 1. A carriage that reciprocates above a recording paper sheet to be transported, and a hole that fits into a convex portion provided on the carriage from the rear side to the front side of the carriage, and has this hole from the front side. In an inkjet printer having a cartridge in which a print head having an ink ejection surface facing the recording paper and an ink tank are integrally formed, which is detachably mounted on a carriage by fitting or removing the convex portion, The carriage is composed of at least a carriage main body and a cartridge holder attached to the carriage main body so as to be vertically movable and rotatable clockwise in right side view, and the cartridge holder is provided with the convex portion. , That the cover of the printer case located at the top of the carriage can be opened Characteristic inkjet printer. 2. The ink jet printer according to claim 1, wherein an upper portion of the cartridge holder is rotated toward a rear side and a lower portion is rotated toward a front side. 3. The cartridge holder is provided with a hook member for hooking and fixing the cartridge, and an operating lever for operating the hook member and vertically moving and rotating the cartridge holder. Item 3. The inkjet printer according to Item 1 or 2. 4. A flat cable for driving and controlling the print head is attached to the carriage body in a direction in which cable inner conductors are directed to the left and right, and a cable inner conductor is provided between the carriage body and the cartridge holder. The ink jet printer according to claim 1, 2 or 3, wherein the ink jet printer is attached in an up and down direction.