JP3424744B2 - printer - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for printing on a thin substrate such as paper and a thick substrate such as CDR which is an information recording medium. Related to printers. 2. Description of the Related Art For example, when a name or a class name is described in a CDR on which information is recorded, as shown in FIG. 7, a card 1 on which a name or a class name is printed is attached to the CDR. In this case, when the CDR is placed on the turntable of the disc player, an error occurs in the distance between the CDR and the optical pickup by the thickness of the card 1 or the turntable is rotated at a high speed. In such a case, the rotational balance may be deteriorated. In order to solve the above problems, Japanese Patent Application Laid-Open No.
Although it is conceivable to perform printing on CDR by an inkjet printer dedicated to CD described in JP-A-62968, such a printer is expensive and has a drawback that it is not suitable for printing other than CD. Therefore, as shown in FIG. 8, it is conceivable to perform printing on CDR by an ink jet printer for printing on paper P. This means that a transport path 5 is formed between a paper feed port 3 and a paper discharge port 4 formed in the housing 2, a printing unit 6 is provided in the middle of the transport path 5, and An opening 7 communicating with the transport path 5 is formed. The transport path 5 is formed by a paper feed roller 9 supported by a pickup unit 8, a feed roller 10, and a paper discharge roller 11, and a paper feed tray 12 is arranged to face the paper feed roller 9. The pressing rollers 13 and 14 are elastically pressed against the feed roller 10 and the discharge roller 11. The printing unit 6 includes a carriage 18 movably fitted on a guide rod 17 erected on a base frame 16 so as to be vertically movable, an ink cartridge 19 and an ink head 20 mounted on the carriage 18, and an ink head 20. And a platen 21 that faces the ink head 20 by moving the guide rod 17 up and down.
Height is adjusted up and down. In the above configuration, when printing is performed on the paper P, the paper feed roller 9 is attached to the paper P set in the paper feed tray 12 with the spring 2 while the height of the ink head 20 is lowered.
2, and by rotating the paper feed roller 9 based on the print command signal in this state, the paper feed tray 12
The upper sheet P is transported along the transport path 5 by one sheet, and the transported sheet P is printed by the ink head 20, and the printed sheet P is discharged by the discharge roller 11 and the press roller 14. It is discharged from the mouth 4. When printing is performed on the CDR, the CDR may be inserted from the opening 7 into the transport path 5 with the height of the ink head 20 raised. As a result, printing is performed on the surface of the CDR by the ink head 20, and the printed CDR is discharged from the discharge port 4 by the discharge roller 11 and the pressing roller 14. [0008] In the above conventional configuration,
With the height of the ink head 20 lowered, C
If the DR is inserted incorrectly, the CDR and the ink head 20 collide with each other and are damaged. The present invention has been made in view of the above-mentioned conventional drawbacks, and has as its object to provide a printer in which a thick printing object is prevented from being inserted by mistake. In order to achieve the above object, according to the first aspect of the present invention, an ink head disposed in the middle of a transport path is formed so as to be adjustable in height by a height adjusting mechanism . opening communicating with the conveying path upstream from the ink head is formed Rutotomoni, for opening and closing the opening
The shutter approaches the opening below the transport path
The shutter and height adjustment mechanism are linked
There is an interlocking mechanism that connects the shutter
It consists of a fan-shaped cross beam, and is located at the base end of both sides of the shutter.
A pair of left and right support shafts that are protruded are rotatably supported by the housing,
The height adjusting mechanism is rotatably attached to the base frame.
A pair of bearings and an operating lever protruding from one of the bearings
And a guide movably supporting the ink head.
Both ends of the rod are integrally connected to the bearings,
The axis of the bearing and the axis of the guide rod are misaligned with each other.
Guide rod is moved up and down around the axis of both bearings
The interlocking mechanism is formed at one end by a connecting pin.
Part consists of a pair of links that are rotatably connected to each other,
The other end of one link is fixed to the shutter.
And the other end of the other link is turned around the outer periphery of the bearing.
Movably linked to print on thin substrates
When rotating both bearings by a predetermined angle,
By moving the guide rod downward with the
Lower the height of the
Move the shutter upwards around the support shaft to
The opening is closed on the outer peripheral surface of the
Align the upper surface along the transport path, and
Height for thin prints conveyed along the transport path
Printing is performed with the lowered ink head, and
When printing on both shafts, rotate both bearings by a predetermined angle
By moving the guide rod upward around the bearing axis,
Raise the height of the ink head, and
The shutter is moved down around the support shaft through the
Open, and enter the transport path through the open
Ink that has been raised to a thicker substrate
It is characterized in that printing is performed by a pad . According to the above configuration, since the shutter is disposed in the opening, there is no possibility that a thick printing object is erroneously inserted into the transport path from the opening. Further, since the shutter is automatically opened only when the height of the ink head is raised, the thick print material inserted into the transport path from the opening and the ink head collide with each other and are damaged. No safety. Further, since the axes of both bearings and the axis of the guide rod are deviated from each other, the ink head can be reliably moved up and down via the guide rod simply by reciprocating the two bearings. Can be. In addition, an interlocking mechanism for interlocking the shutter and the height adjusting mechanism is composed of a pair of links, so that the structure is simple and the production cost is low. 1 to 6 show an ink jet printer according to an embodiment of the present invention, wherein a shutter 24 is disposed in an opening 7 so as to be openable and closable.
The shutter 24 and a height adjustment mechanism 25 for adjusting the height of the ink head 20 are linked to each other via a link mechanism 26. In the configuration other than the above, the same parts as those of the conventional example shown in FIG. As shown in FIG. 3, the shutter 24 is formed of a lateral girder having a fan shape in a side view, and is rotatable with respect to the housing 2 via a pair of left and right support shafts 24a projecting from the base ends of both side surfaces. It is supported by. As shown in FIGS. 4 to 6, the height adjusting mechanism 25 has a pair of left and right bearings 29 rotatably mounted in through holes 28 formed in both side walls 16a of the base frame 16. Then, both ends 17a of the guide rod 17 for movably supporting the ink head 20 are D-cut, and the both ends 1a are formed.
The guide rod 17 is integrally connected to the two bearings 29 by fitting the 7a into the D-shaped recess 30 recessed in each bearing 29, and the axis O1 of the both bearings 29 and the guide rod 1
7 and the shaft center O2 are displaced from each other.
Is provided with an operation lever 31. As shown in FIGS. 3 to 5, the interlocking mechanism 26 includes a pair of links 26a and 26b whose one ends are rotatably connected to each other by a connecting pin 32. An end is fixed to the shutter 24, and a through hole 33 penetrating through the other end of the other link 26b is rotatably fitted to a connecting pin 34 protruding from the outer peripheral portion of the bearing 29. In the above configuration, when printing is performed on the paper P, as shown in FIG. 1, the height of the ink head 20 is reduced, and the opening 7 is closed by the shutter 24. In this state, the paper feed roller 9 is controlled based on the print command signal.
By rotating the sheet P, only one sheet of paper P on the sheet feed tray 12 is fed between the feed roller 10 and the pressing roller 13, and the fed paper P is fed to the ink head 20.
The printed paper P is discharged from the paper discharge port 4 by the paper discharge roller 11 and the pressing roller 14. In this case, the opening 7 is provided by the shutter 24.
Is closed, there is no possibility that a CDR is erroneously inserted into the transport path 5 from the opening 7. Next, when printing is performed on the CDR, the operation lever 31 is moved upward by a predetermined angle α (8 in this embodiment).
0 °). Thereby, as shown in FIG. 4, the axis O2 of the guide rod 17 is rotated upward about the axis O1 of the bearing 29, and the ink head 20 is pulled up by the predetermined interval β. Further, the connecting pin 34 of the interlocking mechanism 26 is also rotated by the predetermined interval α, the shutter 24 is opened downward about the support shaft 24a via both links 26a, 26b, and the opening 7 is opened (FIG. 2). reference). In this state,
By inserting the CDR into the transport path 5 from the opening 7, printing is performed on the surface of the CDR by the ink head 20, and the printed CDR is discharged by the discharge roller 11 and the pressing roller 14 to the discharge port. It is discharged from 4. In this case, since the axis O1 of the bearing 29 and the axis O2 of the guide rod 17 are displaced from each other, the guide rod 17 can be moved only by turning the bearing 29 rightward by the operation lever 31. Through the ink head 20
Can be lifted. At the same time, the shutter 24 is opened by the interlocking mechanism 26 to open the opening 7, so that the CDR inserted into the transport path 5 from the opening 7 and the ink head 20 collide with each other and are damaged. There is no safety. Further, the interlocking mechanism 26 is composed of a pair of links 26a and 26b, the structure of which is simple and the production cost is low. In the above-described embodiment, the case where printing is performed on the CDR has been described as an example. However, the present invention is not limited to this. For example, when printing is performed on various thick substrates such as cardboard. Can also be applied. According to the first aspect of the present invention, since the shutter is disposed in the opening, there is no possibility that a thick printing material is erroneously inserted into the transport path from the opening. Further, since the shutter is automatically opened only when the height of the ink head is raised, the thick print medium inserted into the transport path from the opening and the ink head collide with each other and are damaged. No safety. Further, since the axes of both bearings and the axis of the guide rod are displaced from each other, the ink head can be reliably moved up and down via the guide rod simply by reciprocating the two bearings. Can be. Further, the interlocking mechanism for interlocking the shutter and the height adjusting mechanism is composed of a pair of links, so that the structure is simple and the production cost is low.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view showing a printing state of a sheet by an ink jet printer according to an embodiment of the present invention. FIG. 2 is a longitudinal sectional view showing a printing state of the CDR. FIG. 3 is an exploded perspective view near the shutter. FIG. 4 is an enlarged front view of the height adjustment mechanism. FIG. 5 is a horizontal sectional view of the height adjusting mechanism. FIG. 6 is a view as viewed in the direction of arrows AA in FIG. 5; FIG. 7 is a perspective view of a state in which a card is attached to a CDR. FIG. 8 is a longitudinal sectional view showing a conventional example. [Description of Signs] 5 Conveyance path 7 Opening 17 Guide rod 20 Ink head 24 Shutter 25 Height adjustment mechanism 26 Interlocking mechanism 26a Link 26b Link 29 Bearing 32 Connection pin O1 Bearing axis O2 Guide rod axis P2 Paper ( Thin print material) CDR information recording medium (thick print material)

Claims (1)

(57) Claims 1. An ink head arranged in the middle of a transport path is formed so as to be height adjustable by a height adjusting mechanism, and an opening communicating with the transport path upstream of the ink head. parts are formed Rutotomoni, the shutter for opening and closing the opening
It is located below the transport path and close to the opening,
Interlocking machine that interlocks and connects the shutter and the height adjustment mechanism
Frame is provided, and the shutter is a fan-shaped cross beam in side view.
Left and right protruding from the base end of both sides of the shutter
A pair of support shafts are rotatably supported by the housing, and the height adjustment is performed.
The mechanism includes a pair of bearings rotatably mounted on the base frame.
And a guide rod for movably supporting the ink head.
Both ends of the pad are integrally connected to the bearings,
The shaft center of the bearing and the shaft center of the guide rod are displaced from each other.
The guide rod to move up and down around the axis of both bearings.
And the interlocking mechanism is connected at one end by a connecting pin.
It consists of a pair of links that are rotatably connected to each other.
The other end of one link is fixed to the shutter, and
The other end of the other link can rotate around the outer periphery of the bearing
When printing on a thin substrate,
The bearings are rotated by a predetermined angle, and the guides are
By moving the rod down, the height of the ink head
The shutter through both links of the interlocking mechanism.
The shutter around the support shaft, and move the shutter
Close the opening with
Along the transport path, the upper surface of the shutter and the transport path
Height for thin prints conveyed along
Printing with the ink head, printing on thick printing materials
When the two bearings are rotated by a predetermined angle,
By moving the guide rod upward around the center, the ink
Raise the height of the head and use both links of the interlocking mechanism
And lower the shutter around the spindle to open the opening
And then enter the transport path through the open
Ink head that has been raised for thick printing materials
A printer characterized in that printing is performed by a printer.