JPH04201363A - Recording device - Google Patents

Abstract

PURPOSE:To perform a recording which has a beauty of printing by daisy wheel system and high speed property and low noise property by bubble jet system, without reducing recording speed by a method wherein for example, a recording head of daisy wheel system is arranged at the upstream side, and a recording head by bubble jet system is arranged at the downstream side to the feeding direction of a material to be recorded, and respective recording heads are loaded on independent carriages and individually driven by a driving system. CONSTITUTION:A carriage for DW 1 which is movably supported by a shaft 4 and a rail 5 is driven in the direction shown by arrow A, and at a printing position, an objective type is selected from a DW 2, and printing is performed on a printing paper 7. In the meantime, above the carriage for DW 1, a carriage 9 for bubble jet(BJ) 9 is movably supported by a shaft 10 and a rail 11. The carriage for BJ 9 is driven in the direction shown by arrow D, discharges an ink from a BJ head 12 while scanning, and forms an image on the printing paper 7. Thus, at the upstream side and downstream side on the feeding direction, recordings can be independently performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording apparatus, and more specifically, a recording apparatus having a plurality of recording heads of different types, such as a daisy wheel type recording head and a bubble jet type recording head. The present invention relates to a composite recording device in which a head is mounted on a carriage and recording can be performed using both heads.

[Prior Art] Printing methods that are a combination of a type printing method and a dot composition printing method can improve the quality and production efficiency of documents and documents by complementing each other's shortcomings. For example, type printing methods such as the daisy-wheel method (hereinafter referred to as the DW method) have the advantage of producing beautiful prints and being able to be copied, but they are slow and cannot print patterns other than type. It has the following disadvantages. On the other hand, the dot printing method represented by the wire tod method (hereinafter referred to as the WD method) has advantages such as high speed and disadvantages such as the printing is not as clean as that of printed type. By combining them within a recording device, it is possible to complement each other's shortcomings and create a highly functional print recording device.

From this point of view, conventionally, a plurality of recording heads of different printing methods, for example, two recording heads of the DW method and the WD method, are mounted on the same carriage, or methods are used to simultaneously print on the same line of printing paper. A compound printing device is known in which heads of different types are separated and mounted on two parallel carriages.

[Problems to be Solved by the Invention] However, if a plurality of recording heads of the above-mentioned different printing methods are mounted on the same carriage, the carriage tends to be large and has a large mass. It becomes difficult to drive at high speed.Also, if they are mounted on separate carriages and arranged in the same line, during printing by moving one carriage with respect to the printing range, the other carriage will be moved to the area outside the printing range. This is very inconvenient because the width of the entire recording apparatus needs to be increased accordingly.

The present invention was made in order to eliminate the above-mentioned drawbacks, and it is possible to achieve the combined effect of two different types of recording heads without impairing the recording speed (also without wasting space in the width of the entire device). The purpose is to provide a recording device that can obtain the following.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a plurality of recording heads with different recording methods, and a method in which the plurality of recording heads are mounted individually and interfere with each other in parallel directions. A plurality of carriages that are movable without any movement, a drive means that can drive the plurality of carriages individually, and a recording material that can be fed along a conveyance path in a direction that intersects the direction of movement of the plurality of carriages. The apparatus is characterized in that it includes a recording material feeding means.

[Function] According to the present invention, a plurality of carriages are movably driven without interfering with each other, and the heads of different recording methods mounted on the respective carriages move the recording material upstream in the feeding direction. It is possible to perform recording independently on the downstream side and the downstream side, and it is possible to perform recording that takes advantage of the characteristics of each system without reducing the recording speed.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 shows an embodiment of the present invention, where 1 is a carriage for a daisy wheel (DW), 2 is a DI in which letters are arranged in the circumferential direction, and 3 is a hammer for striking the DW. DW movably supported by shaft 4 and rail 5
The printing carriage 1 is driven in the eight directions of arrows by a drive means (not shown), and the desired type is selected by the DW 2 at the printing position, and the type is printed via an ink ribbon (not shown) supplied from the ribbon cassette 6. Printing is performed on the printing paper 7 by being hit by the hammer 3. Print paper 7 is inserted toward platen 8 from the direction of arrow B, and
The recording medium is held in a wound state, and when recording is completed, it is discharged in the direction of arrow C by a drive mechanism (not shown).

Above the DW carriage 1 (on the downstream side in the feeding direction of the printing paper 7), a bubble jet (hereinafter referred to as BJ) carriage 9 is movably supported by a shaft 10 and a rail 11. The BJ carriage 9 is driven in the direction of the arrow by a drive means (not shown), and while scanning, ink is ejected from the BJ head 12 and an image is formed on the printing paper 7 by the ink droplets.

After the printing paper 7 is sent to the platen 8 as shown in FIG. 2, it is ejected upward through a position facing the BJ head 12 by conveyance rollers 13, 14 and ejection rollers 15.

The printing paper 7 is fed one by one manually from the manual insertion slot 21, and is also configured to be fed one by one from the printing paper 7 held in a stacked state in the stacker 22 by a feeding roller 23. ing. Therefore B.J.
When recording is performed by the head 12, the printing paper 7
The printing paper 7 is carried out while being held at a position opposite to the BJ head 12, and the printing paper 7 is sheet-fed in the C direction at each constant distortion by the BJ carriage 9 (.

Next, the distance maintained between printing by the DW 2 and printing by the BJ head 12 will be explained with reference to FIG.

Now, while the conveyance system for feeding the sheet remains stationary, suppose that the DW carriage 1 and the BJ carriage 9 are individually scanned, and each head prints one sheet of printing paper 7.
If it is printed on the top, a record as shown in FIG. 3 will be obtained. Here, 24 is the print record by DW2, 25 is B
The print record by the J head 12 is shown.

Generally, the line spacing (line spacing) of printers, typewriters, etc. is set based on 176 inches, so considering that both print heads as described above print on the same printing paper, It is desirable that the spacing X in the row direction be an integral multiple of 176 inches.

Therefore, in this embodiment, considering the above points, x=2.5-=15X 1/6''.

Next, the BJ head 12 will be explained in detail with reference to FIGS. 4A and 4B. The BJ head 12 includes an ink ejection section 32 that includes an ejection opening for ejecting ink, a heating resistor that generates thermal energy used for ejecting ink, and an electronic circuit that supplies electricity to these (all not shown). , and an ink tank section 33 filled with ink to be supplied to the ejection section 32.The ink led to each liquid path communicating with the ejection port is heated by a heating resistor, and the ink in contact with this is heated. By generating air bubbles, ink can be ejected from the ejection port using the pressure generated at that time. Note that the ejection surface 32A of the ink ejection section 32
A plurality of ejection ports are provided in a row at constant pitch intervals, and ink is ejected in the direction of arrow F. Further, as recording is performed, ink is constantly replenished from the ink tank section 33 to the ink discharge section 32 through a tube (not shown).

FIG. 5 shows the overall appearance of the recording apparatus according to this embodiment.

Reference numeral 27 indicates the case, and 28 indicates an operation panel disposed on the front side of the case 27. Via the operation panel 28, it is possible to freely select a print recording mode using the DW 2 or the BJ head 12 to perform recording. .

[Other Embodiments] In the embodiments described above, the combination of recording heads of different systems is composed of a Dll and a BJ head, but the present invention is not limited to this, and the application of the present invention is not limited to this. It is also possible to configure it in combination with a print head of
It is also possible to combine not only two types but more than two types.

[Effects of the Invention] As described above, according to the present invention, for example, a daisy wheel type recording head is placed on the upstream side of the feeding direction of the recording material, and a bubble jet type recording head is placed on the downstream side. By arranging the recording heads, each of which is mounted on an independent carriage and driven individually by the drive system, the beautiful printing achieved by the daisy wheel system and the high speed achieved by the bubble jet system are achieved. It is possible to provide a recording device at a low cost that has both low noise and no wasted space in the width of the entire device without impairing the recording speed.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of the configuration of the recording device of the present invention, FIG. 2 is a sectional view showing an example of the configuration of the recording device of the present invention, and FIG. 3 is an example of the printing interval between the DW and BJ heads. FIG. 4A is a side view of the BJ head, FIG. 4B is a sectional view taken along the line A--A in FIG. 4A, and FIG. 5 is an external view of the entire recording apparatus of the present invention. 1... Carriage for daisy wheel (Di), 2...
...DW. 3... Hammer, 4... Ribbon cassette, 7... Print paper, 8... Platen, 9... Carriage for bubble jets (BJ), 12...
・BJ head・ 49艷明 1; φ Karo DW and BJ head and 1; Yoro mark 11
Hakoji Mono Ichii 1 Genzumesu Kinuta 3rd Zuhon 9 What +=”ll use BJ head monk 11[]ff
A-A exercise #11 of the i-th ff 3^4A trick Figure 4B

Claims (1)

[Claims] 1) A plurality of recording heads with different recording methods, a plurality of carriages on which the plurality of recording heads are individually mounted and movable in parallel directions without interfering with each other, and the plurality of carriages. and a recording material feeding means capable of feeding the recording material along a conveyance path in a direction intersecting the moving direction of the plurality of carriages. recording device. 2) One of the plurality of recording heads is of a daisy wheel type, and the other one is of a bubble jet type,
2. The recording apparatus according to claim 1, wherein recording is performed on the recording material on the upstream side and downstream side of the conveyance path by the recording heads of these two methods. 3) An interval between recordings obtained on the recording material by individual scanning of the recording heads of the two methods is an integral multiple of 1/6 inch.
Recording device described in .