JPH1053368A - Image forming device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image forming device that is designed to save space and to neatly stack recording paper sheets while aligning their ends using a simple means. SOLUTION: Print recording paper sheets 10 enclosed in the holder part 2 of a main body block 1 are separated one by one by a separation means 5, are printed at a predetermined position, and conveyed toward a pocket tray 3 by conveying means 7, 8. After the conveyed rear ends of the printed recording paper sheets 10a have reached the nip part of the conveying means 8, the printed recording paper sheets 10a are guided by a kicking roller 27 and neatly aligned on the inclined wall 19 of the pocket tray 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus such as an ink-jet desktop printer,
In particular, the present invention relates to an image forming apparatus that can save space and can orderly hold printed recording paper.

[0002]

2. Description of the Related Art There are many known image forming apparatuses and similar apparatuses in which a paper feeding unit, a printing unit for printing the paper, and a holding unit for temporarily storing and holding printed recording paper are housed in the main body of the apparatus. Technology. For example, “Automatic paper feeder” in JP-A-4-313527,
JP-A-313257 and JP-A-1-313256, "Vertical type recording apparatus", JP-A-1-176778, "Sheet material output apparatus", Japanese Utility Model Application Laid-Open No. 64-18060.
No. 60-72443, "Paper discharge tray device"
JP-A-4-112162, "Image forming apparatus", JP-A-4-55260, "Recording material storage container", JP-A-3-166157, "Paper stacking apparatus" Japanese Unexamined Patent Publication No. Hei 2-182439, "Conveying Apparatus", Japanese Utility Model Application Laid-Open No. 61-185744, "Sheet Material Conveying Apparatus" Recording apparatus "," Sheet feeding apparatus "in JP-A-4-173636," Image reading apparatus "in JP-A-61-254433, and" Conveying apparatus "in JP-A-4-164438.
There are a large number of known techniques. Each of these devices has its own characteristics, but one object of the invention is to save space by minimizing the occupied area. Especially,
Among them, there is an apparatus which makes a recording paper for printing or a printed recording paper almost vertical to save space.

[0003]

Many of the conventional image forming apparatuses aim at saving the space of the apparatus as described above. However, even if the installation area of the apparatus main body is reduced, printing is performed. In many cases, a considerably large occupation area is required when the stack space of the used discharged recording paper is inserted. Further, in a conventional apparatus, as in the image forming apparatus of the present invention described below, both the recording paper for printing and the recording paper with printing are accommodated in the main body block of the apparatus, and are formed almost vertically to save space. There is no such thing that aims at conversion.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is possible to save space, to transport a printing recording sheet reliably, and to stably hold a printed recording sheet. It is an object to provide a forming device.

[0005]

According to an aspect of the present invention, there is provided an image forming apparatus comprising: a holder for storing recording paper for printing, which is recessed in a main body block substantially vertically from an upper opening toward a bottom surface side; A pocket tray for storing printed recording paper, which is recessed in the main body block, is substantially juxtaposed with the holder portion, and forms an opening at an upper side, and extends along the horizontal direction on the bottom side of the main body block. A paper transport guide path formed and communicating the holder portion and the pocket tray, a printing means housed in the main body block and arranged facing the paper transport guide portion, and a printing device housed in the holder portion. An image forming apparatus comprising: a separating unit that engages with a recording sheet for printing and separates and conveys the recording sheet one by one; and a conveying unit that conveys the recording sheet for printing. Two transport boxes La and the conveying roller pair composed of a conveying roller constituting the pair therewith is characterized in that it is disposed in the pocket tray.

According to a second aspect of the present invention, in the image forming apparatus, the holder and the pocket tray are substantially vertical at a gentle inclination angle at which the printing recording paper and the printed recording paper can lean toward the bottom from the opening. It is characterized by comprising a groove formed in the direction.

According to a third aspect of the present invention, in the image forming apparatus, a rear end of the printed recording paper transported from the nip portion of the transport roller pair is mounted on a portion where the transport roller pair is disposed, and the pocket is mounted. A recording paper kicking means for pushing the recording paper into the tray is provided.

The image forming apparatus according to a fourth aspect of the present invention is characterized in that the transport roller pair and the recording sheet kick-out portion are disposed above the bottom surface of the pocket tray.

The recording paper for printing housed in a holder formed substantially vertically is separated and conveyed one by one by separating means, and predetermined printing is performed by the printing means.
The printed recording paper is conveyed to the pocket tray side by the conveying means and stored in a pocket tray formed substantially along the vertical direction. Since both the holder and the pocket tray are formed in the main body block along a substantially vertical direction, space can be saved.

Further, by slightly inclining the holder portion and the pocket tray, the recording paper stored therein can lean against the wall surface and can be stably stored. Also,
By providing the recording paper kick-out portion and guiding the rear end of the transport of the printed recording paper in a fixed direction, the storage and holding in the pocket tray can be performed more stably and reliably. Further, by disposing the recording paper kick-out portion and the transport roller pair above the bottom surface of the pocket tray, the printed recording paper that has passed through the nip portion of the transport roller pair is reliably fed into the pocket tray and is stable. Will be retained.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the image forming apparatus of the present invention will be described in detail with reference to the drawings. In this embodiment, an ink-jet desktop printer is used as an example of the image forming apparatus, and FIG. 1 shows a schematic structure of a main part of the apparatus. Of course, it is not limited to this. As shown in the drawing, a deep groove-shaped holder portion 2 and a pocket tray 3 are formed in the main body block 1 and are communicated with each other through a paper conveyance guide path 4. Further, in the main body block 1, separating means 5, printing means 6, transport means 7, 8 and the like are housed.

The holder 2 is formed of a substantially vertical groove forming an opening 9 on the upper side, and in this embodiment, the holder 2 has a slightly inclined shape. A large number of printing papers 10 are stacked, inserted into the holder 2 from the opening 9, and stored while leaning on the inclined wall 11 of the main body block 1.

In the present embodiment, the separating means 5 comprises a separating pad 12 and a oscillating pickup roller 13, both of which hold the recording paper 10 for printing and separate and transport the recording paper 10 one by one.

The printing means 6 for performing predetermined printing on the printing recording paper 10 comprises an ink jet cartridge 14 and a platen 15. The platen 15 is arranged to face the recording head 16 of the ink jet cartridge 14, Each of the recording papers 10 is arranged to perform predetermined printing. The ink jet cartridge 14 is slidably supported by the shaft 17 and is movably supported in a direction perpendicular to the plane of FIG.

The pocket tray 3 has an opening 18 at the upper side.
, And in this example, the holder 2
It is composed of a slightly inclined vertical groove almost parallel to. In the pocket tray 3, a support wall including an inclined wall 19, a bottom wall 20 connected to a lower end of the inclined wall 19 and arranged in a horizontal direction, and a vertical wall 21 rising from the bottom wall 20 is formed. The inclined wall 19 is for holding the printed recording paper 10a leaning thereon.

The conveying means 7 comprises a conveying roller 22 and a conveying roller 23 arranged opposite to the conveying roller 22 for nipping and conveying the printed recording paper 10a. In the present example, these are arranged on the paper transport guide path 4 near the pocket tray 3.

The conveying means 8 includes a conveying roller 24 and a conveying roller 25 disposed opposite to the conveying roller 24. The transport roller 24 is supported by a support shaft 26 pivotally supported on the top of the vertical wall 21.
, And the transport roller 25 is pivotally supported on the main body block 1 side. The printed recording paper 10a is sandwiched between the transport rollers 24 and the transport rollers 25, and the printed recording paper 10a is transported upward on the opening 18 side.

As shown in FIG. 1 to FIG.
One kick-out roller 27 of recording paper kick-out means is fixed to a support shaft 26 pivotally supporting 4. As shown in FIG. 3, the transport roller 24 and the kick roller 27 are simultaneously rotated in the same direction by a drive motor 28 connected to a support shaft 26.

In the present embodiment, the kick-out roller 27 has a blade portion 29 which is radially arranged on the outer periphery. The blade 29 is made of a rubber material that can be easily elastically deformed. In FIG. 3, the kick-out roller 27 is the transfer roller 2.
4, but may of course be of an integrated structure.

Next, the operation of the present invention will be described. As shown in FIG. 1, a large number of printing recording papers 10 are inserted into the holder 2 and supported by the inclined walls 11. Separation pad 12 and pickup roller 13 of separation means 5
The printing recording paper 10 is separated one by one and transported to the paper transport guide path 4 side. The recording paper 10 is a recording head 16 having an electrothermal converter for generating thermal energy.
The printed recording paper 10a, which has been printed by the platen 15 and has been printed, is transported by the transport roller 22 and the transport roller 2 as shown in FIG.
3, is sent to the pocket tray 3 side, is nipped by the transport rollers 24 and the transport rollers 25 in the pocket tray 3, and is sent upward.

FIG. 5 shows the printed recording paper 10a sent out by the transport roller 24 and the transport roller 25. The transport trailing end 30 of the printed recording paper 10a has a nip portion (A) between the transport roller 24 and the transport roller 25. (Indicated by). The transport of the printed recording paper 10a upward is stopped at a position where the rear end 30 of the transport has passed the nip portion, and the recording paper 10a becomes unstable. However, in this example, as shown in FIG. 6, the trailing end 30 of the printed recording paper 10a is
And is held by the blade 29.

By the rotation of the kick-out roller 27, the printed recording paper 10a is guided by the blade portion 29 and guided rightward in the drawing as shown in FIG. 7, and the printed recording paper 10a is moved to the position shown in FIG. Move away from the wing part 29. That is, as shown in FIG. 9, the printed recording paper 10a released from the transport roller 24 and the transport roller 25 is pushed rightward as shown in a, b, c, d, and e of FIG. It is sent to the contact position. Further, as described above, the transport rollers 24
Since the transport rollers 25 are disposed on the top of the vertical wall 21 and are higher than the bottom wall 20, the printed recording paper 10a released from the transport rollers 24 and the transport rollers 25 is a, b, c as described above. , D, and e are dropped by their own weight while being sent, and fall into the pocket tray 3 to be stored.

As described above, the printed recording paper 10a is stored neatly in the pocket tray 3. Also, the printed recording paper 10a leans against the inclined wall 19 due to the inclination of the inclined wall 19, so that the recording paper 10a is more stably held. The printed recording paper 10a is collectively carried out from the upper opening 18. As described above, by using the very simple kick-out roller 27, the printed recording paper 10a can be stored in the pocket tray 3 in order.

In the above description, the recording paper kick-out portion is the kick-out roller 27. However, any roller may be used as long as it supports and sends out the printed recording paper 10a, and is not limited to the embodiment of this embodiment. . Further, the inclination angles of the holder 2 and the pocket tray 3 are appropriately set in consideration of the number of recording papers to be handled at a time, their materials, and the like.

[0025]

【The invention's effect】

1) According to the image forming apparatus described in claim 1 of the present invention,
There is no need to secure a stack portion for stacking the discharged recording paper outside the apparatus, and space can be saved.

2) According to the image forming apparatus of the second aspect of the present invention, it is possible to stably hold the recording paper by inclining the holder and the pocket tray. The alignment is assured.

3) According to the image forming apparatus of the third aspect of the present invention, the recording paper can be held neatly by providing the recording paper ejection portion having a simple structure for guiding the printed recording paper toward the pocket tray. As a result, stacking and edge alignment are more reliably performed. Further, the recording paper kick-out section has a simple structure and can be implemented at low cost.

4) According to the image forming apparatus of the fourth aspect of the present invention, since the recording paper kick-out portion is disposed above the bottom wall of the pocket tray, the printed recording paper is placed in the pocket tray. It falls under its own weight, is guided neatly to a predetermined position, and is stacked.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating the overall schematic structure of an image forming apparatus according to the present invention.

FIG. 2 is a partial side view showing an enlarged example of a recording paper kick-out section applied to the image forming apparatus of the present invention.

FIG. 3 is a front view as viewed in the direction of arrow B in FIG. 2;

FIG. 4 is a schematic diagram showing a recording paper conveying operation of the image forming apparatus of the present invention.

FIG. 5 is a schematic diagram illustrating a recording paper conveying operation of the image forming apparatus of the present invention.

FIG. 6 is a schematic diagram for explaining the operation of a recording paper kick-out section of the image forming apparatus of the present invention.

FIG. 7 is a schematic diagram for explaining the operation of a recording sheet kick-out section of the image forming apparatus of the present invention.

FIG. 8 is a schematic diagram for explaining the operation of a recording sheet kick-out section of the image forming apparatus of the present invention.

FIG. 9 is a schematic diagram showing a storage state of recording paper in a pocket tray of the image forming apparatus of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body block 2 Holder part 3 Pocket tray 4 Paper transport guide path 5 Separation means 6 Printing means 7 Transport means 8 Transport means 9 Opening 10 Recording paper 10a Printed recording paper 11 Inclined wall 12 Separation pad 13 Pickup roller 14 Inkjet Cartridge 15 Platen 16 Recording head 17 Shaft 18 Opening 19 Slant wall 20 Bottom wall 21 Vertical wall 22 Conveying roller 23 Conveying roller 24 Conveying roller 25 Conveying roller 26 Support shaft 27 Kick-out roller 28 Drive motor 29 Blade 30 Conveying rear end

Claims (4)

[Claims] 1. A holder portion for storing recording paper for printing, which is recessed in a main body block substantially vertically from an upper opening portion toward a bottom surface side, and a holder portion which is recessed in the main body block and is substantially similar to the holder portion. A pocket tray for storing printed recording paper, which is provided side by side and forming an opening at the upper side, and a paper transport formed along the horizontal direction on the bottom side of the main body block to allow the holder portion and the pocket tray to communicate with each other. A guide way,
A printing unit housed in the main body block and arranged facing the paper conveyance guide unit, and the printing paper engaged with the printing paper housed in the holder unit is separated and conveyed one by one. An image forming apparatus comprising: a separation unit that performs printing, and a conveyance unit that conveys a recording sheet for printing. An image forming apparatus arranged in the pocket tray. 2. The holder and the pocket tray each comprise a groove formed in a substantially vertical direction at a slight inclination angle at which the printing recording paper and the printed recording paper can lean toward the bottom from the opening. The image forming apparatus according to claim 1, wherein: 3. A recording sheet kicking-out means for mounting a conveying rear end of a printed recording sheet which has left a nip portion of the conveying roller pair at a position where the pair of conveying rollers is disposed, and pushing the recording sheet into the pocket tray. The image forming apparatus according to claim 1, wherein the image forming apparatus is disposed. 4. The image forming apparatus according to claim 3, wherein the transport roller pair and the recording paper kick-out portion are disposed above the bottom surface of the pocket tray.