JP2002321844A - Recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording device miniaturizable in a body. SOLUTION: A swing region of a separation member 143a for separating a recording medium pulled out together with the uppermost recording medium from it is provided in parallel with a delivery roller 146 in a conveying direction of the recording medium. A feeding roller 142 is also arranged adjacently to the delivery roller 146 and a separating member can be arranged on a guiding part 144 arranged between the feeding roller 142 and the delivery roller 146. Accordingly, the recording device can be miniaturized and a separating and feeding speed of the recording medium can be increased.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording head mounted on a carriage which scans along a guide shaft with respect to the uppermost recording medium in a tray which is pulled out by a supply roller and conveyed by a feed roller. The present invention relates to a recording device that records information.

[0002]

2. Description of the Related Art In general, an ink jet printer, which is one of recording apparatuses, intermittently intermittently sets a print head mounted on a carriage reciprocating in a main scanning direction and a printing paper in a sub scanning direction by a set amount. It is provided with a paper transport means for transporting, configured to move the print head in the main scanning direction while transporting the printing paper in the sub-scanning direction, and discharge ink droplets from the print head to the printing paper to record information. ing.

[0003] New printing paper is obliquely stacked in a tray provided at the upper rear part of the printer body, one end thereof is lifted by a hopper, and the uppermost printing paper is pulled out by a paper feed roller and fed to a paper feed roller. The paper is fed to the In addition, when the uppermost printing paper and the subsequent printing paper are pulled out in an overlapping manner, the uppermost printing paper and the subsequent printing paper are separated by a separation pad so that they are not fed together, Printing papers other than the uppermost printing paper separated are returned into the tray by the paper return lever.

[0004]

The separation pad of the above-described conventional ink jet printer is attached to a paper return lever, and is disposed together with a paper feed roller around a hopper of a tray. For this reason, since the paper feed roller and the paper feed roller are disposed at positions separated from each other, the depth of the ink jet printer increases, and the ink jet printer becomes large.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a recording apparatus capable of reducing the size of a main body.

[0006]

In order to achieve the above object, in the recording apparatus according to the first aspect of the present invention, the uppermost recording medium in a tray pulled out by a supply roller and transported by a feed roller is provided. In a recording apparatus that records information by a recording head mounted on a carriage that is scanned along a guide axis, a swing area of a separation member that separates the topmost recording medium from the recording medium that is drawn out in an overlapping manner is set. The recording medium is arranged in parallel with the feed roller in the conveying direction of the recording medium.

Accordingly, the supply roller is also disposed close to the feed roller, so that the separating member can be disposed on the guide portion disposed between the supply roller and the feed roller. The size of the recording medium can be reduced, and the speed of separation and feeding of the recording medium can be increased.

According to a second aspect of the present invention, in the recording apparatus according to the first aspect, the guide shaft is disposed upstream of the separation member in the transport direction of the recording medium. Thus, even if the supply roller and the feed roller are arranged close to each other, the recording head can be arranged in the recording area.

According to a third aspect of the present invention, in the recording apparatus according to the first or second aspect, the separating member separates the recording mediums drawn out one after another and returns them to the tray. . As a result, double feeding of the recording medium can be prevented, and an accident such as jamming can be prevented.

According to a fourth aspect of the present invention, in the recording apparatus according to any one of the first to third aspects, one surface of the recording apparatus is disposed between the feed roller and the separation member. A guide member forming a part is provided. Thereby, the recording medium can be reliably transported horizontally.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view of a configuration example of an ink jet printer as one of the ink jet recording apparatuses according to an embodiment of the present invention, as viewed obliquely from the front. The inkjet printer 100 has a flat rectangular parallelepiped shape, and is configured so that all operations can be performed from one side (hereinafter, referred to as a front side). The paper transport unit 140 and the printing unit 150 shown in FIG. 4 and the like described later of the ink jet printer 100 are covered by a housing 101 having an open front side and a front frame 102 fitted on the front side of the housing 101. ing.

As shown in FIG. 1, the housing 101 is formed by, for example, sheet metal processing of a metal plate or by injection molding of plastic. As shown in FIG. 1, the front frame 102 is formed by injection molding of a plastic. Stackers 120 are arranged vertically, an operation panel 130 is arranged beside them, and an arrow b shown above the opening.
An open / close cover 103 that can be opened and closed in the front-rear direction is attached.

As shown in FIG. 2, the tray 110 has a main body 111 for stacking and storing printing paper before printing, and a diagonally upward lifting front portion of the printing paper for feeding the stacked and stored printing paper one by one. The hopper 112 is provided. As shown in FIG. 2, the main body 111 is made slightly larger than, for example, A4 size printing paper. The main body 111 includes a positioning member 111 a for positioning the printing paper in the width direction of the printing paper disposed therein. It is designed to be positioned at a predetermined position by a lengthwise positioning member not to be stacked and stored.

As shown in FIG. 2, the hopper 112 has a paper supporting portion 112a provided at a front portion inside the main body 111 and a leg portion 112b formed integrally with the paper supporting portion 112a. the biasing member 112c that is engaged with the inner bottom surface of the part 112b and the main body 111, so as to lift the front of the print paper obliquely upward by the sheet supporting portion 112a to pivot about the end of the leg portion 112b I have.

This tray 110 is, as shown in FIG.
The printing paper can be supplied in a state where the printing paper is stored in the housing 101 behind the front frame 102, and as shown in FIG. The printing paper can be replenished or replaced. As the printing paper, plain paper, special paper, recommended OH
P-sheets, glossy papers, glossy films, label sheets, postcards made by government, and the like can be used.

As shown in FIG. 3, the stacker 120 holds a receiving tray 121 for receiving and placing printing paper discharged after printing is completed, and a rear end portion of the receiving tray 121 pulled out forward. Or the cradle 12 pushed backward
1 is provided. Cradle 121
Is made slightly larger than, for example, A4 size printing paper, and is configured to hold the printing paper discharged after printing is completed. The base 122 is fixed in the housing 101, and is configured to support or receive or hold the receiving base 121 so as to be slidable in the front-rear direction.

As shown in FIG. 1, the operation panel 130 is provided with a power button 131, a reset button 132, a paper ejection button 133, and the like.
1 is electrically connected to a dedicated controller board or the like of the control unit 160 incorporated in the controller 1. This operation panel 13
By operating each of the 0 buttons 131 to 133, etc.,
The inkjet printer 100 can be started, printed, stopped, and the like.

The opening / closing cover 103 is, as shown in FIG.
It is formed in a size that can cover substantially the upper half of the front frame 102 by injection molding of plastic, so that it can be pivotally opened and closed about the lower part by pulling the upper part forward and pushing it backward. It is configured. That is, as shown in FIG. 4, the supporting ribs 103a are formed at two lower portions of the opening / closing cover 103 so as to protrude.
3 a is supported by the front frame 102 as a pivot center of the opening / closing cover 103. Further, locking ribs 103b are formed at upper portions of both side surfaces of the opening / closing cover 103 so as to protrude therefrom. 1
02.

Then, as shown in FIG.
A paper transport unit 140 is disposed above the tray 110 when the cover 03 is opened. Above the paper transport unit 140, a main scanning direction (a carriage 151 to be described later) indicated by an arrow c is shown.
(A scanning direction) is provided. Here, FIG. 5 is a perspective view showing a state where the housing 101, the front frame 102, and the opening / closing cover 103 are removed, and FIG.
FIG. 7 is a front view thereof, FIG. 8 is a side view thereof, and a detailed configuration of the sheet transport unit 140 and the printing unit 150 will be described with reference to FIGS.

The paper transport section 140 transports printing paper to the housing 10.
1 has a function of transporting it from the tray 110 stored in the tray 1 to the stacker 120 pulled out to the front side, and the following members are arranged in order from the rear side to the front side. That is, a first paper guide 141 (see FIGS. 5, 6, and 8) disposed above the tray 110, a paper feed roller 142 (see FIGS. 5, 6, and 8) disposed vertically opposed, and a pad 143a. Pad holder 143 (see FIG. 8) having pad holder 143 (see FIG. 8), second paper guide 144 that supports pad holder 143 (see FIG. 8), and driven rollers 145 (see FIGS. 5 to 8) that are vertically opposed to each other. , A paper feed roller 146 (see FIGS. 5, 6, and 8), a third paper guide 147 (see FIGS. 5 to 8) disposed below the printing unit 150, and a discharge jagged roller 148 that is vertically opposed. (FIGS. 5-8
And a paper discharge roller 149 (see FIGS. 5, 7, and 8).

The printing unit 150 includes a carriage 151 (see FIGS. 5 to 8) movable in the main scanning direction.
An ink cartridge 152 (see FIGS. 5 to 8) detachably mounted in the front-rear direction with respect to the carriage 151;
A print head 153 (see FIGS. 7 and 8),
A guide rod 154 (see FIGS. 5 to 8) for guiding the movement of the carriage 151, a flexible wiring board 155 (see FIGS. 5 to 7) for electrically connecting the print head 153 and a dedicated controller board of the control unit 160, and an ink cartridge. Assist means 156 (see FIGS. 5 to 8) for assisting in attaching / detaching 152 to / from carriage 151 is provided. The ink cartridge 152 includes a total of four color tanks, for example, yellow, magenta, cyan, and black.
It is configured so that full-color printing is possible.

As shown in FIGS. 5 to 7, a drive motor 171 and a gear mechanism 172 are provided on one side of the paper transport section 140 as a transport drive section 170 for driving the paper transport section 140, and the printing is performed. A drive motor 181 and a belt mechanism 182 as a print drive unit 180 of the unit 150 are disposed behind the print unit 150.

Here, the characteristic portions of the present invention will be described in detail. The above-described ink jet printer 10
0 is stored in the main body 111 of the tray 110, one end is lifted by the hopper 112, pulled out by the paper feed roller 142, and guided to the uppermost printing paper in the tray 110 conveyed by the paper feed roller 146. Stick 1
The information is printed by the print head 153 mounted on the carriage 151 scanned along the line 54. The characteristic points are the following four points.

That is, the first point is a pad (separating member).
143a is arranged in parallel with the paper feed roller 146 in the transport direction of the printing paper.
Since the paper feed roller 142 is also arranged close to the paper feed roller 146, the pad 143a is
And the second paper guide 144 disposed between the paper feed roller 146 and the paper feed roller 146, the size of the ink jet printer 100 can be reduced, and the speed of separation and feeding of printing paper can be increased. Can be achieved.

The second point is that the guide rod 154 is
3a, the paper feed roller 142 and the paper feed roller 1
The print head 153 can be arranged in the printing area even if the 46 is arranged in proximity. Third, when the uppermost printing paper and the lower printing paper are pulled out in a superposed manner, the pad 143a separates the lower printing paper from the uppermost printing paper, and then the pad holder (separating member) 143 is used. This is a point in which only the lower-order printing paper is returned to the tray 110, whereby it is possible to prevent double feeding of the printing paper and to prevent an accident such as jamming. The fourth point is that the second paper guide 144 is provided between the paper feed roller 146 and the pad 143a, so that the printing paper can be reliably transported horizontally.

The operation of such a configuration will be briefly described. It is assumed that the connection wiring and the connection of the power plug between the inkjet printer 100 and a computer or the like have already been completed. First, in a state shown in FIG. 1, the user pulls a finger on a concave portion provided on the bottom surface of the tray 110 and pulls the finger as shown in FIG. 2.
Pull 10 forward.

Subsequently, after a plurality of print sheets are stored in a stacked state at a predetermined position in the main body 111 of the tray 110, the tray 110 is pushed backward and set. At this time, the front of the printing paper is lifted obliquely upward by the hopper 112, and the front end of the top printing paper contacts the paper feed roller 142.

Next, the user hooks the finger on the concave portion provided on the bottom surface of the stacker 120 and pulls it.
As shown in FIG. 3, the stacker 120 is pulled out forward. Then, the user operates the operation panel 130 to put the inkjet printer 100 in a standby state, and inputs a print command from a computer or the like.

Then, as shown in FIG.
The uppermost sheet of printing paper P is guided by the first paper guide 141 and the second paper guide 144 and is drawn forward by the rotation of the paper feed roller 142 in the sub-scanning direction. And the pad 143a, and is sent further forward. Then, the printing paper P is sandwiched between the driven roller 145 and the paper feed roller 146 and is sent further forward.

When the printing paper P reaches the third paper guide 147, the carriage 151 starts to move in the main scanning direction. Then, the printing paper P being conveyed in the sub-scanning direction
On the other hand, the print head 153 ejects ink droplets while moving in the main scanning direction, and prints predetermined print information on the printing paper P. At this time, the scanning timing and the ink ejection timing of the print head 153 are controlled by a dedicated controller board or the like of the control unit 160, and high-precision ink dot control, halftone processing, and the like are executed.

Then, the printing paper P is nipped between the paper discharge roller 148 and the paper discharge roller 149 and is sent further forward, and the printing paper P finally printed is discharged onto the stacker 120. Is done. When the ink in the ink cartridge 152 is exhausted, the open / close cover 103 is opened as shown in FIG.
Is rotated forward as shown by an arrow d in the drawing to separate it from the ink cartridge 152, and as shown in FIG. 10, the ink cartridge 152 is pulled out forward as shown by an arrow e in the drawing.
Replace with a new ink cartridge 152.

As described above, according to the ink-jet printer 100, all the operations are performed on the front side from the setting of the printing paper P before printing to the removal of the printing paper P after printing, and further from the replacement of the ink cartridge 152. Since the processing can be performed, the operation is quick and easy, the printing efficiency can be improved, and the peripheral devices can be installed on the upper portion of the printer, so that the work space can be effectively used.

Although the present invention has been described with reference to various embodiments, the present invention is not limited to the above embodiments, and other embodiments may be implemented within the scope of the invention described in the appended claims. It goes without saying that also applies. For example, although a printer has been described as an example of a recording device, the present invention is not limited to this, and is applicable to a recording device such as a facsimile device or a copying device.

[0035]

As described above, according to the recording apparatus of the present invention, since the supply roller is also arranged close to the feed roller, the separating member is arranged between the supply roller and the feed roller. It is possible to dispose it on the guide part. Therefore, the size of the recording apparatus can be reduced, and the speed of separation and feeding of the recording medium can be increased.

[Brief description of the drawings]

FIG. 1 is a perspective view of a configuration example of an ink jet printer, which is one of the ink jet recording apparatuses according to an embodiment of the present invention, as viewed obliquely from the front.

FIG. 2 is a perspective view showing a state where a tray of the ink jet printer of FIG. 1 is pulled out.

FIG. 3 is a perspective view showing a state where a stacker of the ink jet printer of FIG. 1 is pulled out.

FIG. 4 is a perspective view showing a state in which an opening / closing cover of the ink jet printer of FIG. 1 is opened.

5 is a perspective view showing a state in which a housing, a front frame, and an opening / closing cover of the ink jet printer of FIG. 1 are removed.

FIG. 6 is a plan view of the ink jet printer of FIG.

FIG. 7 is a front view of the ink jet printer of FIG.

FIG. 8 is a side view of the ink jet printer of FIG.

FIG. 9 is a first perspective view showing a procedure for replacing an ink cartridge of the ink jet printer of FIG. 1;

FIG. 10 is a second perspective view showing a procedure for replacing an ink cartridge of the ink jet printer of FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 Inkjet printer 101 Housing 102 Front frame 103 Opening / closing cover 110 Tray 111 Main body 112 Hopper 120 Stacker 121 Receiving stand 122 Base 130 Operation panel 140 Paper transport unit 141 First paper guide 142 Feed roller 142 Projection 143 Pad holder 143a Pad 144 Second paper guide 144a Torsion coil spring 145 Follower roller 146 Paper feed roller 147 Third paper guide 148 Discharge jagged roller 149 Discharge roller 150 Printing section 151 Carriage 152 Ink cartridge 153 Print head 154 Guide rod 155 Flexible wiring board 156 Assist means 160 control section 170 transport drive section 171 drive motor 172 gear mechanism 180 print drive section 181 drive motor 182 belt mechanism

Claims (4)

[Claims] 1. A recording apparatus that records information on a top recording medium in a tray that is pulled out by a supply roller and conveyed by a feed roller by a recording head mounted on a carriage that scans along a guide shaft. The recording method according to claim 1, wherein a swinging area of a separating member for separating the topmost recording medium and the recording medium drawn out in an overlapping manner is arranged in parallel with the feed roller in the transport direction of the recording medium. apparatus. 2. The recording apparatus according to claim 1, wherein the guide shaft is disposed upstream of the separation member in a conveying direction of the recording medium. 3. The recording apparatus according to claim 1, wherein the separation member separates the recording medium that has been drawn out and returns the recording medium to the tray. 4. The recording medium according to claim 1, wherein a guide member having one surface forming a part of a conveyance path of the recording medium is provided between the feed roller and the separation member. The recording device according to claim 1.