JPH0885665A - Recorder - Google Patents

Abstract

PURPOSE: To eliminate a trouble of handling an article to record by a deformation preventive member and to prevent paper discharging jam caused as the article to record is caught in the deformation preventive member by forming a guide member to prevent deformation of a recording medium free to store in a discharge tray. CONSTITUTION: Sheet guides 19-21 as guide members to prevent deformation of a recording medium are arranged on a discharge tray 18. These sheet guides 19-21 are axially supported by the discharge tray 18 free to revolve and are free to store against recessed parts 22-24 provided on the discharge tray 18. Consequently, it is possible to selectively use the sheet guides 19-21 in accordance with a status. That is, handling of a recording sheet on the discharge tray 18 is facilitated by storing the sheet guides 19-21 in the recessed parts 22-24 under a favourable circumstance where deformation of the recording sheet is not caused and at the time of a recording form. Additionally, it is possible to prevent jam caused as the recording sheet is caught in the sheet guides 19-21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus for forming a predetermined image on a recording medium, and more particularly to a recording apparatus having a discharge tray for stacking recording media after image formation.

[0002]

2. Description of the Related Art As a conventional recording apparatus, a paper feed unit for feeding a recording paper, an image forming unit (recording unit) for forming an image on the fed recording paper, and a paper discharge after the image formation. In order to prevent the recording paper on the paper ejection tray from being deformed, the recording paper is provided with a discharge tray for receiving the recorded recording paper, and the recording paper is likely to be deformed when the ink is dried, such as an inkjet recording device. The deformation preventing member is provided.

The above deformation preventing member is, for example, Japanese Unexamined Patent Publication No.
Some of them are disclosed in Japanese Patent No. 58016. This is, as shown in FIGS. 5 and 6, provided with a deformation preventing member capable of sliding movement at two or three positions on the paper discharge tray. In the recording device 51 shown in FIG. 5, the recording paper S is fed from the paper feed tray 52 to the image forming unit inside the recording device,
After the image formation, the paper is discharged onto the paper discharge tray 53. The deformation preventing members 54 are provided on both sides of the paper discharge tray 53, and restrict the recording paper S to prevent deformation that occurs when the ink on the surface of the recording paper S on the paper discharge tray 53 dries. Figure 6
The discharge tray 53 of the recording apparatus shown in FIG. 1 is provided with a deformation preventing member 54a slidable in the lateral direction of the recording sheet S and a deformation preventing member slidable in the longitudinal direction of the recording sheet S so as to correspond to various sizes of the recording sheet. A member 54b is provided. As described above, since the slidable deformation preventing members 54a and 54b are provided on the paper discharge tray 53, the deformation of the recording paper due to the drying of the ink can be prevented, and as a result, high quality image output can be obtained. It is designed to be used.

[0004]

However, in the above conventional recording apparatus, when used in a low-humidity and low-temperature environment and high-density recording is performed, the recording paper on which the recording is performed deforms (curls) on the recording surface side. ) Is prevented, but conversely, when used in a normal comfortable environment (such as in an office environment), the recording paper is hardly deformed,
This means that the deformation prevention member is not necessary.

That is, in an environment in which the recording paper is not deformed, the slidable deformation preventing member as in the above-described conventional example makes it difficult to take out the recording paper on the paper discharge tray, and when the continuous paper is discharged, the paper is discharged. There is a problem that the number of sheets is limited to an extremely small number, and if more sheets are discharged, the recording sheet is caught by the deformation preventing member, resulting in a sheet discharge jam.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to eliminate the difficulty in handling the recorded matter by the deformation preventing member and to prevent the discharge jam caused by the recorded matter being caught by the deformation preventing member. .

[0007]

A typical constitution of the present invention for achieving the above object is a recording means for forming a predetermined image on a recording medium, and a conveying means for conveying the recording medium. A discharge tray for receiving the recording medium discharged after the image formation, and guide members for preventing deformation of the recording medium facing both ends of the recording medium discharged to the discharge tray, The guide member can be housed in or detached from the discharge tray.

[0008]

According to the above construction, the guide member for preventing the deformation of the recording medium can be attached to and detached from the discharge tray or can be stored therein. Therefore, the guide member can be selectively used depending on the situation. It becomes possible, that is, it becomes easy to handle the recording medium on the discharge tray in an environment where the recording medium is not deformed or in a recording format, and it is possible to prevent a paper discharge jam caused by the recording medium being caught by the guide member. Is possible.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a recording apparatus to which the present invention is applied will be specifically described below with reference to the drawings.

[First Embodiment] A recording apparatus according to a first embodiment of the present invention will be described with reference to the drawings. 1 is a schematic side sectional view showing a schematic configuration of the recording apparatus, FIG. 2 is a plan view of a discharge tray viewed from the direction of arrow A in FIG. 1, and FIG.
FIG. 6 is a side view of the discharge tray viewed from the direction of arrow B in FIG.

As shown in FIG. 1, recording sheets S as recording media are stacked and stored on a paper feed tray 1, and the uppermost recording sheet is pressed against a feeding roller 3 by a spring 2 during feeding. . The feeding roller 3 is a half-moon roller, is driven and rotated by a driving system (not shown), and separates and feeds only the uppermost recording sheet by a cooperative action with a separating claw (not shown).

The recording sheet S separated and fed is conveyed by a feeding cassette 6 and a paper guide 7 by an intermediate roller 4 driven and rotated by a drive system (not shown), and an intermediate roller 5 which is pressed against the intermediate roller 4 and is driven to rotate. A U-turn is carried along. Further, it is guided to a straight portion by a manual feed roller 8 which is pressed against the intermediate roller 4 and is driven to rotate. After that, a main conveyance roller 9 driven and rotated by a drive system (not shown) and a pinch roller 10 that is pressed against the main conveyance roller 9 and rotated by the main conveyance roller 9 feeds a predetermined amount and conveys it to a recording unit. Reference numeral 11 is a manual feed tray for manual paper feed.

As the recording means in this apparatus, a serial type ink jet recording system is used. That is,
A recording head 14 is mounted on a carriage 13 that can reciprocate along two guide shafts 12 that are long in the width direction of the recording sheet S.
The recording head 14 is driven so as to be synchronized with the reciprocating movement of the carriage 13, and ink droplets are ejected in accordance with image information,
An ink image is formed on the recording sheet S. The recording head 14 has an ink cartridge (not shown) on the upper part thereof.
And a platen 15 that supports and guides the back side of the recording sheet S is disposed at the opposite portion.

The recording sheet S recorded by the recording means is discharged and conveyed by a discharge roller 16 which is driven and rotated by a drive system (not shown) and a spur 17 which is pressed against the discharge roller 16 and is driven to rotate, and is discharged onto a discharge tray 18. To be stacked.

As shown in FIGS. 2 and 3, sheet guides 19, 20, 21 as guide members for preventing deformation of the recording medium are disposed on the discharge tray 18.
The sheet guides 19, 20, and 21 are rotatably supported by the discharge tray 18, and the recesses provided on the discharge tray 18.
It can be stored in 22, 23, 24. This allows the sheet guide to be selectively used depending on the situation.

The sheet guides 19, 20 and 21 are inclined portions 19a which are inclined at a predetermined angle with respect to the upper surface of the discharge tray 18.
20a, 21a, and the inclined portions 19a, 20a, 21a
And the upper surface of the discharge tray 18 are set such that the upstream side t _{1 in} the recording medium transport direction is larger than the downstream side t ₂ (t ₁ > t ₂ ) (see FIG. 1). This allows
The recording sheet is smoothly ejected when the sheet guide is used, and the possibility of sheet jamming can be further reduced.

Of the above-mentioned sheet guides, sheet size indicators 25 and 26 are provided on the discharge tray 18, which is the most downstream side of the A4 sheet guide 19 and the B5 sheet guide 21 that hold down the right end side of the recording sheet. The above-mentioned sheet guide 1 according to the size of the recording sheet used by the user
9 and 21 can be set quickly.

2 and 3 show a state in which the sheet guides 19 and 20 are used when recording is performed on an A4 size recording sheet. That is, here, the reference sheet guide 20 for suppressing the deformation of the left end side of the recording sheet and the A4 sheet guide 19 for pressing the right end side of the recording sheet are rotated from the discharge tray 18 and are erected, and the B5 size recording sheet is The B5 sheet guide 21, which holds the right end side when used, is housed in the recess 24 of the discharge tray 18.

As described above, the use of the sheet guide upright is a special situation in which the recording medium on which the recording is performed deforms (curls on the recording surface side), and more specifically, it is used in a low humidity and low temperature environment and at a high temperature. This is only for high-density recording, and during normal recording, the reference sheet guides 20 and A4 are similar to the B5 sheet guide 21 in FIGS. 2 and 3.
The sheet guide 19 is also housed in the recesses 23 and 22 of the discharge tray 18, and the upper surface of the discharge tray 18 is used in a flat state.

As described above, the sheet guides 19, 20, 21
By making it possible to store the sheet in the discharge tray 18, it is possible to selectively use the sheet guide according to the situation, and in a comfortable environment where the deformation of the recording sheet does not occur or in the recording format, the recording sheet after recording Can be handled easily, and it is possible to prevent a sheet jam that occurs when the recording sheet is caught in the sheet guide. As a result, a good printed matter can be obtained.

[Second Embodiment] A recording apparatus according to a second embodiment of the present invention will be described with reference to the drawings. FIG. 4 is a plan view of the discharge tray in the recording apparatus. Since the configuration of the entire apparatus is substantially the same as that of the above-described embodiment, detailed description will be omitted here. Further, members having the same functions and configurations as those of the above-described embodiment are designated by the same reference numerals.

In FIG. 4, reference numeral 27 denotes a right end side sheet guide, which holds the right end side of the recording sheet discharged onto the discharge tray 18. Similarly, 28 is a left end side sheet guide for pressing the left end side of the recording sheet discharged onto the discharge tray 18. The sheet guide 27,
28 is attachable / detachable to / from positioning holes 29, 30, 31 provided at predetermined positions on the upper surface of the discharge tray 18.

FIG. 4 shows a state in which recording is performed on an A4 size recording sheet using the sheet guides 27 and 28. That is, here, the right end side sheet guide 27 is mounted in the positioning hole 29 on the discharge tray 18, and similarly, the left end side sheet guide 28 is mounted in the positioning hole 30 on the discharge tray 18 so as to be in a standing state ready for use. is there.

When the sheet guide is used in accordance with the B5 size recording sheet from the state shown in FIG. 4,
Position the right-side sheet guide 27 into the positioning hole 31 on the output tray 18.
It can be attached to the. Also, during normal recording that does not require the use of the sheet guides 27, 28, the sheet guides 27, 28
28 is removed from the discharge tray 18, and the upper surface of the discharge tray 18 is used in a flat state as in the above-described embodiment.

As described above, by making the sheet guides 27 and 28 attachable to and detachable from the discharge tray 18, the sheet guides can be selectively used according to the situation, as in the above-described embodiment. This makes it easier to handle the recording sheet after recording in a comfortable environment where the recording sheet is not deformed or in the recording format, and it is possible to prevent sheet jams that occur when the recording sheet is caught in the sheet guide. Becomes As a result, a good printed matter can be obtained.

[Other Embodiments] In the above-described embodiments, an example in which the serial type ink jet recording system is used as the recording means is shown, but the present invention is not limited to this, and the recording apparatus can record. It may be a full line type having a length corresponding to the maximum width of the recording medium.
As such a recording head, a combination of a plurality of recording heads may be used to satisfy the length thereof or a single recording head integrally formed.

In addition, even in the case of the serial type described above, when the recording head is fixed to the carriage or mounted on the carriage, it is possible to electrically connect to the apparatus main body and supply ink from the apparatus main body. A replaceable chip type recording head or a cartridge type recording head in which an ink tank is integrally provided in the recording head itself may be used.

Regarding the type and the number of recording heads mounted on the carriage, for example, only one is provided corresponding to a single color ink, or a plurality of inks having different recording colors and densities are supported. And a plurality of them may be provided. That is, for example, the recording mode of the recording apparatus is not limited to the recording mode of only the mainstream color such as black, but the recording head may be integrally configured or a plurality of combinations may be used. Alternatively, it can be applied to an apparatus provided with at least one of full colors by color mixing.

Further, as the form of the above-mentioned ink jet recording device, in addition to a form used as an image output terminal of an information processing device such as a computer, a form of a copying device combined with a reader or the like, and a form of a facsimile device having a transmitting / receiving function. It may be something to take.

Although an example of using the ink jet recording method as the above-mentioned recording means has been described, the recording method of the present invention is not limited to the ink jet recording method, and other thermal transfer recording method, heat sensitive recording method, Can be applied to a recording method such as a wire dot recording method or another recording method.

[0031]

As described above, the guide member for preventing the deformation of the recording medium can be attached to and detached from the discharge tray or can be stored, so that the guide member can be selectively used depending on the situation. can do. That is, in an environment where the recording medium is not deformed or in a recording format, it is easy to handle the recording medium on the discharge tray, and it is possible to prevent a paper discharge jam that occurs when the recording medium is caught by the guide member. . As a result, a good printed matter can be obtained.

Further, the guide member has an inclined portion which is inclined at a predetermined angle with respect to the upper surface of the ejection tray, and the distance between the inclined portion and the upper surface of the ejection tray is downstream on the upstream side in the recording medium conveying direction. Since it is set to be larger than the side, the recording medium is smoothly discharged when the guide member is used, and the possibility of a paper discharge jam can be further reduced.

Sheet size indicators 25 and 25 are provided on the discharge trays on which the guide members can be attached or detached.
Since 26 is provided, the guide member can be quickly set according to the size of the recording medium used by the user.

[Brief description of drawings]

FIG. 1 is a side sectional view of a recording apparatus to which the present invention is applied.

FIG. 2 is a plan view of the discharge tray as viewed in the direction of arrow A in FIG.

FIG. 3 is a side view of the discharge tray seen from the direction of arrow B in FIG.

FIG. 4 is a plan view of a discharge tray in the recording apparatus according to the second embodiment.

FIG. 5 is a perspective view showing a conventional recording apparatus.

FIG. 6 is a perspective view showing a paper discharge unit of a conventional recording apparatus.

[Explanation of symbols]

 S ... Recording sheet 1 ... Paper feed tray 2 ... Spring 3 ... Feed roller 4 ... Intermediate roller 5 ... Intermediate roller 6 ... Feed cassette 7 ... Paper guide 8 ... Manual feed roller 9 ... Main transport roller 10 ... Pinch roller 11 ... Manual tray 12 ... Carriage guide shaft 13 ... Carriage 14 ... Recording head 15 ... Platen 16 ... Ejection roller 17 ... Spur 18 ... Ejection tray 19 ... A4 sheet guide 19a, 20a, 21a ... Inclined portion 20 ... Reference sheet guide 21 ... B5 Sheet guides 22, 23, 24 ... Recesses 25 ... A4 size display 26 ... B5 size display 27 ... Right edge sheet guide 28 ... Left edge sheet guide 29, 30, 31 ... Sheet guide positioning hole

Claims (6)

[Claims] 1. A recording unit for forming a predetermined image on a recording medium, a conveying unit for conveying the recording medium, a discharge tray for receiving the recording medium discharged after image formation, and a discharge tray for the discharge tray. A guide member facing both ends of the ejected recording medium to prevent deformation of the recording medium, and the guide member can be housed in the ejection tray. 2. A recording unit for forming a predetermined image on a recording medium, a conveying unit for conveying the recording medium, a discharge tray for receiving the recording medium discharged after the image formation, and a discharge tray for the discharge tray. A recording device, comprising: a guide member facing both ends of the discharged recording medium to prevent deformation of the recording medium, and the guide member is configured to be attachable to and detachable from the discharge tray. 3. The recording apparatus according to claim 1, wherein a position indicator for positioning a guide member is provided on the discharge tray. 4. The guide member has an inclined portion that inclines at a predetermined angle with respect to the upper surface of the discharge tray, and the distance between the inclined portion and the discharge tray is downstream on the upstream side in the recording medium conveyance direction. It is larger than the side.
The recording device according to claim 3. 5. The recording apparatus according to claim 1, wherein the recording apparatus is an inkjet recording method in which a recording unit ejects ink in accordance with a signal to perform recording. 6. The recording apparatus according to claim 5, wherein the recording apparatus is a color inkjet recording apparatus.