JP2004050683A - Recorder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance recording quality by carrying a recording medium stably. <P>SOLUTION: The recorder for recording on a recording medium comprises a sheet carrying section having a function for bending the recording medium in U-shape, and a function for discharging the recording medium obliquely upward. The recorder is further provided with a cover at an upper part of a space where printed recording media are stacked and the cover is provided with a guide part for guiding the recording medium under print. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a recording device.
[0002]
[Prior art]
A conventional inkjet printer has a form as shown in FIG. That is, a printer driving unit (not shown) is mounted inside a housing 18 slightly larger than the printer driving unit, and a feeding unit 19 is provided on the back of the apparatus main body, and a discharge unit 20 is provided on the front of the apparatus main body. Had been. In the ink jet printer of this embodiment, since the recording medium 21 is printed in the longitudinal direction, the printed recording medium 21 is left in a state of protruding from the apparatus main body.
[0003]
Further, although not shown here, as a second related art, there is a device that performs feeding from the front surface of the apparatus main body and discharges the same to the front surface of the apparatus main body. Also in this case, the printed recording medium has been left out of the apparatus body.
[0004]
Further, as a third conventional technique, the supply / discharge method is the same as that of the first conventional technique. Some things could not be touched.
[0005]
[Problems to be solved by the invention]
However, the conventional technique described above has the following problems.
That is, in the first related art, the printed recording medium (sheet) is left uncovered in the discharge space of the printer. Therefore, the user could easily touch the recording medium after printing. In the ink jet printer, since it takes time until the ink is fixed on the recording medium, there is a problem that when the recording medium is touched immediately after printing, the ink bleeds and the quality is deteriorated.
[0006]
Further, in the second prior art, the feeding method is different from the first prior art, and similarly to the first prior art, the recording medium after printing is left uncovered in the discharge space of the apparatus body. It had been. Therefore, the user can easily touch the recording medium. As a result, as in the case of the first related art, the quality may be impaired due to ink bleeding.
[0007]
Further, in the third conventional technique, since the lid is provided above the discharge space, the problem of ink bleeding caused by the user touching the recording medium can be solved. However, at present, the sheet conveying method is different from the conventional method due to the increase in printing speed and the diversification of recording media (postcards to A3 print). For this reason, there may be a case where the lid is provided above the discharge space.
[0008]
For example, some printers capable of high-speed printing of a large-sized recording medium such as A3 plain paper may be configured such that the recording medium is attached in a U-shape and then discharged obliquely upward. With this function, the recording medium is maintained in a completely floating state until printing is completed. As a result, the recording medium being printed does not rub against the printing surface of the recording medium that has already finished printing and is loaded on the discharge space, and it is possible to prevent ink from bleeding in the printing area. Further, since there is no rubbing between the recording medium during printing and the recording medium after printing, it is possible to prevent the discharge stackability of the recording medium loaded in the discharge space from being impaired.
[0009]
However, if a large-sized recording medium such as A3 plain paper is printed by attaching a lid to the upper part of the printer discharge space of this form, the size of the recording medium is large and the recording medium is suspended in the air. By discharging the recording medium upward, the recording medium interferes with the lid. Normally, since the lid is provided with a reinforcing rib or the like, the leading end of the recording medium may be caught by the rib of the lid, and the recording medium may be jammed.
[0010]
Therefore, an object of the present invention is to stably convey a recording medium and improve recording quality.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, a typical configuration of the present invention is a recording apparatus that performs printing on a recording medium, and a sheet conveying unit of the recording apparatus has a function of seating the recording medium in a U-shape. A function of discharging the recording medium obliquely upward, and further, the recording apparatus further includes a lid above a space where the recording medium after printing is stacked, and the lid includes: A guide unit for guiding the recording medium during printing is provided.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an external perspective view of an inkjet printer according to an embodiment of the present invention. As shown in FIG. 1, the inkjet printer according to the present embodiment includes an apparatus main body 3 having a hollow structure composed of an upper case 1 and a lower case 2, and a feeder detachably attached to the apparatus main body 3. A cassette 4, an operation panel 5 used for various operations such as power ON / OFF, a jam cover 6 to be used when a recording medium is jammed during printing, and a discharge cover 8 mounted on an upper portion of the discharge port 7. An ink exchange lid 9 that opens and closes when an ink tank (not shown) is exchanged is provided. The present invention particularly relates to the structure of the discharge lid 8 mounted above the discharge port 7.
[0013]
Next, the structure of the discharge lid 8, which is a main part of the present invention, will be described with reference to FIGS. FIG. 2 is an external perspective view when the apparatus main body 3 is viewed from the bottom, and FIG. 3 is a perspective view showing a state where the discharge lid 8 is removed from the apparatus main body 3. The discharge lid 8 is for preventing the user from easily touching the recording medium immediately after printing. Guide members 10 and 11 for guiding the end of the recording medium in the middle of printing are attached to the discharge lid 8 by welding. In the present invention, the guide members 10 and 11 are formed separately from the discharge lid 8, but the present invention is not limited to this, and the guide members 10 and 11 may be formed integrally with the discharge lid 8.
[0014]
Next, the characteristic structure and function of the present embodiment will be described with reference to FIGS. FIG. 4 is a perspective view showing the vicinity of the discharge port 7 when the recording medium 12 is in the middle of printing, and FIG. 5 is a cross-sectional view showing a main part when the recording medium 12 is in the middle of printing. is there. When printing a recording medium of a specific size, such as A3 plain paper, the ink jet printer of the present invention uses the claw members 13, 14, 15, 16, 17 provided in the sheet conveying portion of the printer to transfer the recording medium 12 to the U. It is a structure that sits in a letter shape and discharges diagonally upward. With this structure, the recording medium 12 is conveyed while floating in the air until printing is completed. Then, when the printing is completely completed, the U-shaped stiffening of the recording medium is released and the recording medium is stacked on the discharge section 7 of the apparatus main body 3.
[0015]
The present invention employs the above-described structure for the purpose of improving the print quality and improving the discharge stackability. In recent ink jet printers, printable recording media have been diversified (postcards to A3 ++), and the printing speed has also become extremely high. When continuous printing is performed at a high speed, recording media are successively stacked on recording media on which ink has not been completely fixed. When a recording medium of a specific size, such as A3 plain paper, is printed at a high speed by a conventional sheet conveying method, the recording medium being printed may be a recording medium that has already been printed and is loaded on the discharge space. The printed surface is rubbed. In this case, the rubbing between the recording media causes the ink of the previously printed recording medium to bleed, thereby deteriorating the print quality.
[0016]
Furthermore, with the speeding up of the ink jet printer, the number of recording media printed by the user at one time tends to increase. Along with this, the demand for discharge loadability is also increasing. Also in this case, the conventional sheet conveying method described above causes rubbing between the recording media. If the resistance due to the rubbing is large, the recording medium being printed shifts the recording medium that has already been printed and is stacked, and the discharge stackability becomes very poor.
[0017]
In order to solve the above-described problem, the present invention employs a structure in which a recording medium is conveyed obliquely upward after being seated in a U-shape. As a result, the recording medium is suspended in the air until the recording medium is completely discharged, so that it is possible to prevent the print quality and discharge stackability from being reduced.
[0018]
However, in the present embodiment, since the discharge lid 8 is attached to the upper part of the discharge port 7, when the large-sized recording medium 12 such as A3 plain paper is stiffened as described above and discharged diagonally upward, the discharge is performed. It interferes with the lid 8. The state is shown by a two-dot chain line in FIG. Normally, a lid such as the discharge lid 8 is provided with reinforcing ribs 22, 23, 24, 25, 26, 27, 28 in order to maintain rigidity. Therefore, when the recording medium 12 interferes with the discharge lid 8, the recording medium 12 is caught by the reinforcing rib, and is bent or jammed. In order to solve the problem such as the jam, it is necessary to provide a guide on the discharge lid 8 so that the recording medium 12 is not caught by the reinforcing rib. For example, there is a method in which the area through which the recording medium 12 passes through the ejection lid 8 is formed of one surface in order to prevent the recording medium 12 from being caught. However, according to this method, the unfixed portion of the ink of the recording medium 12 comes into contact with the surface, the ink bleeds, and the print quality is impaired.
[0019]
Therefore, in the present invention, the discharge lid 8 is provided with the two guide members 10 and 11. One guides the right end of the recording medium 12, and the other guides the left end of the recording medium 12. Thereby, the recording medium 12 can be stably printed without being caught on the discharge cover 8. Furthermore, since the guide members 10 and 11 are designed so as not to contact the print area of the recording medium (contact only with the end of the recording medium), the guide members 10 and 11 may deteriorate the print quality of the recording medium. There is no.
[0020]
As described above, the present invention relates to a lid mounted on an upper part of a discharge space of an ink jet printer. By mounting the lid on the upper part of the discharge space, the user cannot easily touch the recording medium immediately after printing. For this reason, ink bleeding due to the user touching the recording medium is eliminated, and print quality is prevented from being impaired. Further, by attaching the lid to the upper part of the discharge space, the design of appearance and the quality can be improved.
[0021]
However, at present, the sheet transport structure is different from the conventional one in order to cope with diversification of recording media and increase in printing speed. Furthermore, there are many restrictions on the appearance design. For this reason, if the lid is simply attached to the upper part of the discharge space, the recording medium may be caught on the lid during printing, and the recording medium may be bent or jammed. In order to solve this problem, the present invention employs a structure in which two ribs are provided on the lid to guide the end of the recording medium. This can solve the problem of bending or jam caused by the recording medium being hooked on the lid, and can improve the reliability of the printer. Further, since the two ribs provided on the lid are designed so as not to contact the print area of the recording medium, there is no fear that the print surface of the recording medium is stained by the rib.
[0022]
Further, when high-duty printing (solid printing or the like) is performed on a specific recording medium such as A3 plain paper with the ink jet printer of the present invention, the recording medium is greatly curled, and the discharge attitude becomes extremely poor. Also in this case, the end of the recording medium is guided by the two ribs provided on the lid, so that the ejection can be performed in a stable posture and the print quality can be improved.
[0023]
【The invention's effect】
As described above, according to the present invention, in a recording apparatus that performs printing on a recording medium, a sheet conveying unit of the recording apparatus includes a function of seating the recording medium in a U-shape, And a function of discharging the recording medium in the direction, and the recording apparatus further includes a lid above a space where the recording medium after printing is stacked, and the lid includes the recording medium during printing. A guide portion for guiding is provided. With such a configuration, the recording medium can be stably conveyed, and the recording quality can be improved.
[Brief description of the drawings]
FIG. 1 is an external perspective view showing an inkjet printer according to an embodiment of the present invention.
FIG. 2 is an external perspective view of the inkjet printer according to the embodiment of the present invention when viewed from the bottom.
FIG. 3 is a perspective view showing a state in which a discharge lid according to the embodiment of the present invention has been removed from an apparatus main body.
FIG. 4 is an external perspective view showing the vicinity of a discharge port when a recording medium of the inkjet printer according to the embodiment of the present invention is printing.
FIG. 5 is a cross-sectional view illustrating a main part of the inkjet printer according to the embodiment of the invention in a state where a recording medium is being printed.
FIG. 6 is an external perspective view showing a conventional ink jet printer.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 upper case 2 lower case 3 apparatus main body 4 feed cassette 5 operation panel 6 jam lid 7 discharge port 8 discharge lid 9 ink exchange lid 10 guide member 11 guide member 12 recording media 13, 14, 15, 16, 17 claw member 18 Case 19 Feeding unit 20 Discharging unit 21 Recording media 22, 23, 24, 25, 26, 27, 28 Reinforcing rib

Claims (2)

In a recording device that performs printing on a recording medium,
A function of squatting the recording medium in a U-shape,
A function of discharging the recording medium obliquely upward,
Further, the recording device has a lid on an upper portion of a space on which the recording medium after printing is loaded, and the lid is provided with a guide unit for guiding the recording medium during printing. A recording device characterized by the above-mentioned. 2. The recording apparatus according to claim 1, wherein guide portions provided on the lid guide right and left ends of the recording medium.

Images