JP2003306237A - Recording medium supply device, and recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording medium supply device having high paper feeding accuracy, and to provide a recording device with the same. <P>SOLUTION: This recording medium supply device is provided with a first supply roller 142a for feeding the recording medium inside of a tray in a direction opposite to the supply direction and a second supply roller 142b for feeding the recording medium fed from the first supply roller in the feeding direction, which are integrated with each other to rock around a shaft 142d supported by both side frames 141a and to contact with the recording medium each other, and planetary gear mechanism 142e, f, and g arranged in one side frame to hold the first and the second supply rollers for drive. With this structure, since the first and the second supply rollers are held by the shaft supported by both the side frames at both ends thereof and also held by a shaft extended from the planetary gear mechanism supported by the one side frame, the generation of deformation of the supply rollers and the shaft due to twist when supplying the recording medium can be prevented to maintain high supplying accuracy. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for supplying a recording medium stored in a tray to a recording section and a recording apparatus provided with this supplying apparatus.

[0002]

2. Description of the Related Art Generally, an ink jet printer, which is one of recording devices, is provided with a recording section having a recording head, a head driving mechanism, an automatic continuous paper feeding mechanism, a sheet conveying mechanism, etc. A tray for storing printing paper before printing is disposed so as to incline toward the rear of the upper portion, and a stacker for receiving the printing paper after printing is disposed so as to horizontally protrude on the front surface of the main body.

In such a structure, the printing paper in the tray is fed by the automatic continuous paper feeding mechanism and is sandwiched between the paper feeding roller and the driven roller which constitute the paper feeding mechanism. An image or the like is printed on the printing paper by ink droplets ejected from the recording head by the head driving mechanism while being fed by the rotation of the paper feeding roller. The printing paper is further delivered by the rotation of the paper feed roller, and is sandwiched between the paper ejection roller and the paper ejection serration forming the paper conveyance mechanism.

The printing paper on which printing has been completed is ejected onto the stacker by the rotation of the ejection roller.
When the ink in the ink cartridge is exhausted, the main body cover is opened upward to remove the ink cartridge, a new ink cartridge is loaded, the main body cover is closed, and printing is continued.

The above-mentioned automatic continuous paper feeding mechanism draws the printing paper from the tray arranged at the rear of the upper part of the main body and supplies it to the recording portion arranged inside the main body. The depth tends to increase. On the other hand, as described in U.S. Pat. No. 5,527,026, there is proposed a device in which a tray is arranged at the bottom of the printer to reduce the depth of the entire printer. The automatic continuous paper feeding mechanism of this printer is configured such that the paper feeding roller is divided into a gear portion and cantilevered by a shaft protruding from the gear portion, and the paper feeding roller and the gear portion swing up and down. The printing paper is supplied to the recording unit by the paper feed roller moving downward to come into contact with the printing paper stored in the tray and rotate.

[0006]

In the above-described conventional automatic continuous paper feeding mechanism, the paper feeding roller is cantilevered by the shaft protruding from the gear portion, and therefore the paper feeding roller is twisted at the time of paper feeding. And the shaft may be deformed to deteriorate the paper feeding accuracy.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a recording medium supply apparatus with high sheet feeding accuracy and a recording apparatus provided with this supply apparatus.

[0008]

In order to achieve the above object, a recording medium supply device according to claim 1 of the present invention is a device for supplying a recording medium housed in a tray to a recording portion, and is provided on both sides. It is integrated so that it can swing around a roller shaft supported by a frame and alternately come into contact with the recording medium, and the recording medium in the tray is in a direction opposite to the supply direction to the recording unit. Disposed on one of the side frames, and a first supply roller for feeding to the recording medium and a second supply roller for feeding the recording medium fed by the first feeding roller to the recording unit in the feeding direction. , And a planetary gear mechanism that holds and drives the first supply roller and the second supply roller. As a result, the first and second supply rollers are held by the roller shafts supported at both ends by both side frames and also by the shaft extending from the planetary gear mechanism supported by one side frame. Therefore, it is possible to prevent the supply roller and the shaft from being deformed due to the twist when the recording medium is supplied, and to maintain the supply accuracy with high accuracy.

According to a second aspect of the present invention, there is provided a recording device for recording on a recording medium, which is characterized by including the supply device according to the first aspect. In the invention according to claim 3,
The recording apparatus according to claim 2, wherein the recording unit, the first and second supply rollers, and the planetary gear mechanism,
It is characterized in that they are juxtaposed above the tray. As a result, it is possible to provide a recording device that achieves the above-described respective operational effects.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to 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 the embodiments of the present invention, 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 the front side of the apparatus. Therefore, since the upper surface of the device has no movable parts or operation parts and the upper surface of the device is formed flat, it is possible to mount peripheral devices and the like on the upper surface of the device.

A sheet conveying section 140, a printing section 150, etc. shown in FIG. 3 and the like of the ink jet printer 100, which will be described later, include a case 101 whose front side is open and the case 101
Is covered by a front frame 102 fitted on the front side of the. As shown in FIG. 1, the housing 101 is formed, for example, by metal plate processing of a metal plate or by plastic injection molding.

As shown in FIG. 1, the front frame 102 is formed by injection molding of plastic, and can be put in and taken out in the sub-scanning direction (conveying direction of printing paper) indicated by an arrow a in the lower part of the opening. The trays 110 are arranged, an operation panel 130 is arranged beside them, and an opening / closing cover 103 that can be opened and closed in the front-rear direction is attached to the upper part of the opening.

As shown in FIG. 2, the tray 110 has a tray body 111 for accommodating printing paper before printing, and a leading end of the printing paper obliquely upward for supplying the printing papers stacked one by one. It has a convex portion 112.
As shown in FIG. 2, the tray main body 111 is made slightly larger than, for example, A4 size printing paper, and the printing paper is arranged inside the printing paper positioning member 113 in the width direction. The lengthwise positioning member 114 is positioned at a predetermined position for stacking and storing. As shown in FIG. 2, the convex portion 112 is formed in a rod shape, and is disposed in a substantially central portion of the bottom surface of the tray main body 111 so that the longitudinal direction thereof faces the width direction of the printing paper. The printing paper stored in the is lifted in a mountain shape.

This tray 110, as shown in FIG.
Printing paper can be supplied in a state of being housed in the housing 101 behind the front frame 102, and as shown in FIG. The printing paper can be replenished or exchanged. Plain paper, special paper, recommended OH
P sheet, glossy paper, glossy film, label sheet, official postcard, etc. can be used.

As shown in FIG. 1, the operation panel 130 is provided with a power button 131, a reset button 132, a paper discharge button 133, etc., and the housing 101 shown in FIG.
Electrical wiring is connected to a dedicated controller board or the like of the control unit 160 built in. This operation panel 130
By operating the 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 to a size capable of covering substantially the upper half of the front frame 102 by injection molding of plastic, and is configured to be rotatable and openable around the lower part by pulling the upper part to the front side. That is, as shown in FIG. 3, shaft support ribs 103 a are formed so as to project at two lower portions of the opening / closing cover 103, and these shaft support ribs 103 a serve as the center of rotation of the opening / closing cover 103 and are attached to the front frame 102. It is supported.

Further, as shown in FIG. 3, the opening / closing cover 10
Locking ribs 103b are formed on the upper portions of both side surfaces of the protrusion 3, and these locking ribs 103b are formed on the opening / closing cover 103.
Opening and closing cover 1 is caught on the front frame 102 when the door is closed
03 is locked to the front frame 102. Then, as shown in FIG. 3, a sheet conveying section 140 is disposed above the tray 110 when the opening / closing cover 103 is opened, and above the sheet conveying section 140, a main scanning direction (indicated by an arrow c in FIG. A printing unit 150 that is movable in a scanning direction of a carriage 151 described later) is provided.

FIG. 4 is a perspective view showing a state in which the housing 101, the front frame 102 and the opening / closing cover 103 are removed, and FIG.
FIG. 6 is a plan view thereof, FIG. 6 is a front view thereof, and FIG. 7 is a side view thereof. Referring to FIGS. 4 to 7, the paper transport unit 140, the printing unit 150, the transport drive unit 170, and the print drive unit 180 are shown. The detailed configuration will be described.

The paper transport unit 140 stores print paper in the housing 10.
1 has a so-called switchback transport function of transporting once from the tray 110 housed in 1 to the rear side of the casing 101 and then to the front side of the casing 101.
The following members are sequentially arranged from the rear surface side to the front surface side. That is, the paper retracting unit 1 having the cover 141a (see FIGS. 4 to 7) and the paper guide 141b (see FIG. 7).
41, a pair of planet rollers 142a, 142b (FIG. 4,
5 and 7) and their supporting arms 142c (see FIG. 4,
5 and 7), a paper feed roller 142, a paper scooping plate 143 (see FIGS. 4 and 7), and a driven roller 144 (see FIG. 4).
5 and 7), the paper feed roller 145 (see FIGS. 4, 5, and 7), the paper guide 146 (see FIGS. 4, 5, and 7), the paper discharge serrated roller 147 (see FIGS. 4 to 7), and the paper discharge roller 148. (See FIGS. 6 and 7).

The paper retracting portion 141 has a cover 141a formed in a box shape covering the rear portion of the tray 110, and has a paper guide 14a.
1b is formed so as to curve from the lower inside rear surface of the cover 141a toward the inside upper surface front. This paper evacuation unit 1
The reference numeral 41 is for retracting the rear end of the uppermost one sheet of printing paper in the tray 110 along the inner surface of the paper guide 141b.

Here, FIG. 8 is a perspective view showing details of the paper feed roller 142, and FIG. 9 is a plan view thereof, which will be described with reference to these drawings. The paper feed roller 142 includes a pair of planet rollers 142a and 142b rotatably supported by both ends of a support arm 142c, and the support arm 142c is rotatably supported by a revolving shaft 142d penetrating substantially the center of the revolving shaft 142d. Are rotatably supported at both ends on the inner surface of the cover 141a so as to face the width direction of the printing paper.

A gear mechanism for rotating the planet rollers 142a, 142b and the turning shaft 142d is provided in the cover 14.
It is disposed on one outer surface of 1a. That is, the pulley 142l that receives the driving force of the drive motor 171 of the transport driving unit 170 described later and the sun gear 142g are fitted to one end of the turning shaft 142d, and the roller planet gears 142e and 142f are provided on both sides of the sun gear 142g. It is meshed. The shafts 142h and 142i extending from the roller planet gears 142e and 142f are connected to the planet rollers 142e and 142i.
a, 142b.

According to this structure, when the driving force of the driving motor 171 of the driving unit 170 is transmitted to the pulley 142l, the swing shaft 142d rotates and the support arm 142c swings in the rotation direction, so that the planetary roller is rotated. 142a, 142b
One of them contacts the printing paper. At the same time, the sun gear 142
g rotates so that the planetary gears 142e and 142f move from the shaft 142
Each planetary roller 142a, 142b via h, 142i
Rotates in the direction opposite to the rotation direction of the sun gear 142g to supply the printing paper.

In this way, each planetary roller 142a, 14a
2b is held by a pivot shaft 142d supported at both ends of the cover 141a, and also held by shafts 142h, 142i extending from the planetary gears 142e, 142f supported on one side of the cover 141a. Therefore, each planet roller 1 will be twisted when the printing paper is fed.
It is possible to prevent the deformation of the shafts 42a and 142b and the shafts 142d, 142h, 142i and maintain the paper feeding accuracy with high accuracy.

The paper scoop plate 143 is provided with a paper feed roller 142.
One end on the side is formed in a shape obliquely cut in the width direction of the printing paper, and one end on the side of the paper feed roller 145 is pivotally supported by a turning shaft 143a (see FIG. 7) extending in the width direction of the printing paper. The sheets are arranged so as to be inclined from one end on the paper feed roller 142 side toward one end on the paper feed roller 145 side.

The sheet scooping plate 143 is used for the sheet feeding roller 1.
The projecting corner of the one end on the 42 side is always in contact with the uppermost printing paper in the tray 110, and the projecting corner of the printing paper fed from the paper feeding roller 142 is at this projecting corner. By scooping up one corner, the entire leading edge of the printing paper is gradually scooped up over one end on the paper feed roller 142 side and lifted toward one end on the paper feed roller 145 side.

A driven roller 144 and a paper feed roller 145
Are arranged so as to face each other vertically, and sandwich the printing paper conveyed through the paper scoop plate 143 to sandwich the paper guide 146.
It is designed to be transported to. The paper guide 146 is arranged below the printing unit 150 and holds the printing paper flat. The paper ejecting roller 147 and the paper ejecting roller 148 are arranged so as to face each other in the vertical direction.
The printing paper conveyed through 6 is pinched and discharged.

The printing unit 150 includes a carriage 151 (see FIG. 4).
To FIG. 7), the ink cartridge 152 (see FIGS. 4 to 7).
Recording head 153 (see FIG. 7), guide bar 15
4 (see FIGS. 4 to 7), a flexible wiring board 155 (see FIGS. 4, 5, and 7) and the like. Carriage 151
Is a carriage main body 151a on which the ink cartridge 152 is mounted and the recording head 153 is mounted.
(See FIGS. 4 to 7) and the frame 10 on which the print driving unit 180 and the like are arranged from the rear of the carriage body 151a.
4 (see FIGS. 4 to 6) and a balance member 151b (see FIGS. 4, 5, and 7) arranged across the carriage body 15
A locking means 120 (see FIGS. 4 to 7) attached to the ink cartridge 1a for locking the ink cartridge 152 is provided.

The carriage main body 151a has a guide bar 154 arranged in the main scanning direction at the rear portion thereof and penetrates the carriage main body 151a so as to move along the guide bar 154. The balance member 151b supports the flexible wiring board 155, and brings the weight balance of the entire carriage 151 closer to the guide rod 154 to reduce the swinging reduction of the carriage body 151a during movement.

The locking means 120 is a carriage body 151.
The toggle mechanism 121 (see FIGS.
Of the ink cartridge 152, and the ink cartridge 152 is moved up and down by the toggle mechanism 121.
The ink cartridge 152 is provided with a storage frame 122 (see FIGS. 4 to 6) for pressing and releasing the ink cartridge 152.

The ink cartridge 152 can be inserted into and removed from the carriage 151 in the front-rear direction and has a locking means 1.
It is removably locked by 20. The ink cartridge 152 in this example is, for example, yellow, magenta,
It has a total of four colors, a cartridge in which each cyan ink tank is integrated and a cartridge in a black ink tank, and is configured to enable full-color printing.

The recording head 153 is mounted below the carriage 151 and has a plurality of nozzle rows for ejecting ink droplets. One end of the flexible wiring board 155 is electrically connected to the recording head 153, and
The back side of the frame 104 is routed through the balance member 151b of 51 and the other end is electrically connected to a dedicated controller board of the control unit 160 or the like.

The transport drive section 170 is provided with a drive motor 171.
(See FIGS. 4 and 5), encoder 172 (see FIGS. 4 and 5), gear mechanism 173 for paper feed roller 145 and discharge roller 148 (see FIGS. 4 to 6), wiper for recording head 153, cap For pumps and paper feed rollers 142
A gear mechanism or the like (not shown) is provided. Drive motor 1
71, the encoder 172, the gear mechanism 173 for the paper feed roller 145 and the paper discharge roller 148 are disposed on the left side surface of the paper conveyance unit 140 when viewed from the front side, and the recording head 15
3 wiper, cap, pump and paper feed roller 1
The gear mechanism for 42 includes a paper transport unit 140 when viewed from the front side.
Is disposed on the right side surface of the.

The print driving unit 180 includes a drive motor 181.
(See FIG. 5), linear encoder 182 (see FIGS. 4 to 6), belt mechanism 183 for carriage 151 (see FIGS. 4 to 6).
(See FIG. 6) and the like. The drive motor 181 is disposed on the back side of the frame 104, and the linear encoder 18
2. The belt mechanism 183 is arranged on the front side of the frame 104.

An outline of the operation of such a configuration will be described. It is assumed that the connection wiring between the inkjet printer 100 and the computer or the like and the connection of the power plug have already been completed. First, the user pulls the tray 110 forward by hanging the finger on a recess provided in the bottom surface of the tray 110 and pulling the finger. Then, after a plurality of printing sheets are stacked and stored at a predetermined position in the tray body 111 of the tray 110, the tray 110 is pushed backward and set. At this time, the printing paper is
The substantially central portion is in a state of being projected upward by the convex portion 112.

Next, the user operates the operation panel 130 to put the ink jet printer 100 in a standby state, and inputs a print command from a computer or the like. Then, the drive motor 171 of the conveyance drive unit 170 rotates, and the rotational force of the drive motor 171 is transmitted via the gear mechanism 173 and the like to the paper feed roller 142.
To the planetary rollers 142a and 142b via gears. At this time, the turning shaft 142d rotates clockwise in FIG. 7, and the planet rollers 142a and 142b rotate counterclockwise in FIG.

Therefore, the paper feed roller 14 on the rear side of the apparatus
2a is swung downward and contacts the uppermost print sheet in the tray 110, and the print sheet is conveyed to the rear side of the apparatus. At this time, when the printing papers are overlapped and conveyed, first,
A coarse separation pad 115 (see FIG. 7) disposed at the rearmost portion of the tray 110 roughly separates the sheet into two or three sheets, and further a separation pad disposed on the inner surface of the sheet guide 141b of the sheet evacuation unit 141. 141c (see FIG. 7) separates the sheet into one sheet, and then the drive motor 17 of the transport drive section 170 is separated.
1 stops.

Then, the drive motor 1 of the transport drive unit 170
71 rotates in the opposite direction to the one described above, and the rotational force thereof is the gear mechanism 173.
Is transmitted to the swivel shaft 142d of the paper feed roller 142 via gears, and the planetary rollers 142a and 142b are further transmitted via gears.
Be transmitted to. At this time, the turning shaft 142d rotates counterclockwise in FIG. 7, and the planet rollers 142a and 142b rotate clockwise in FIG.

Therefore, the paper feed roller 14 on the front side of the apparatus is
2b is swung downward and contacts the print sheet separated into one sheet, and the print sheet is conveyed to the front side of the apparatus. Then, a corner of the tip of the printing paper is placed on the paper scoop plate 14
By being scooped up by the protruding corner portion of one end of 3, the entire front end of the printing paper is gradually scooped over the one end of the paper scooping plate 143.

This printing paper is nipped between the driven roller 144 and the paper feed roller 145 and is further sent to the front side of the apparatus. When the print paper reaches the paper guide 146, the carriage 151 starts to move in the main scanning direction. Then, the recording head 153 ejects ink droplets while moving in the main scanning direction onto the printing paper being conveyed in the sub-scanning direction, and prints predetermined print information on the printing paper. The scanning timing and the ink ejection timing of the recording head 153 at this time are controlled by a dedicated controller board of the control unit 160, etc., and highly accurate ink dot control, halftone processing, etc. are executed.

Then, the print sheet is sandwiched between the sheet discharge roller 147 and the sheet discharge roller 148 and further sent out to the front side of the apparatus, and the print sheet which is finally printed is discharged to the outside. . Here, the ink cartridge 15
When the ink in 2 is exhausted, as shown in FIG.
The operation of removing the ink cartridge 152 is performed in the procedure shown in (B) to FIG. 11 (A) and (B). Although these drawings show the removal work of the ink cartridge 152 in which the yellow, magenta, and cyan ink tanks are integrated, the removal work of the ink cartridge 152 of the black ink tank is also the same.

As shown in FIG. 10 (A), the opening / closing cover 1
03 is opened, and as shown in FIG.
The toggle lever 123 constituting the 0 toggle mechanism 121 is pinched from the front side of the apparatus and opened to the side of the apparatus to release the lock of the ink cartridge 152. As a result, the ink cartridge 152 is stored in the storage frame 1 of the locking means 120.
Since it is lifted by 22, the ink cartridge 152 is pulled out to the front side of the apparatus as shown in FIG. 11 (A), and the ink cartridge 1 as shown in FIG. 11 (B).
52 is removed from the storage frame 122.

Subsequently, the loading operation of the ink cartridge 152 is performed. The new ink cartridge 152 is aligned with the front part of the storage frame 122 and inserted horizontally into the storage frame 122. When the ink cartridge 152 is completely stored in the storage frame 122, the toggle lever 12
Ink cartridge 1
Lock 52. As a result, the ink cartridge 1
52 is pushed down by the storage frame 122.

In the recording head 153, the ink cartridge 15 is inserted into the ink cartridge 152.
2. An ink injection needle for receiving the ink supply from No. 2 is provided. The ink injection needles are arranged in parallel for each color so that the ink ejection direction in the recording head 153, that is, the tip of the ink injection needle faces upward. Therefore, the ink cartridge 15 by the storage frame 122
By the pushing-down operation of 2, the ink injection needle is completely inserted into the ink supply port of the ink cartridge 152. Now that the ink cartridge 152 has been loaded,
The open / close cover 103 is closed and the printing process is started.

As described above, according to the ink jet printer 100, everything from the setting of the printing paper before printing to the taking out of the printing paper after printing to the replacement of the ink cartridge 152 is performed on the front side of the apparatus. Therefore, the operation can be performed quickly and easily, the printing efficiency can be improved, and the peripheral device 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 within the scope of the invention described in the claims. Needless to say, also applies. For example, although the printer has been described as an example in the above embodiment, the present invention is not limited to this, and is applicable to, for example, a facsimile device, a copying device, or the like.

[0048]

As described above, according to the present invention,
Since the first and second supply rollers are held by the roller shafts supported at both ends by both side frames, they are also held by the shaft extending from the planetary gear mechanism supported by one side frame. It is possible to prevent the supply roller and the shaft from being deformed due to the twist when the recording medium is supplied, and to maintain the supply accuracy with high accuracy.

[Brief description of drawings]

FIG. 1 is a perspective view of a configuration example of an inkjet printer, which is one of the inkjet 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 in which a tray of the ink jet printer of FIG. 1 is pulled out.

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

FIG. 4 is a perspective view showing a state where the casing, front frame and open / close cover of the inkjet printer of FIG. 1 are removed.

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

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

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

8 is a perspective view showing details of a paper feed roller of the ink jet printer of FIG.

9 is a plan view showing the paper feed roller of FIG. 8. FIG.

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

11 is a second perspective view showing a procedure for replacing the ink cartridge of the ink jet printer of FIG.

[Explanation of symbols]

100 inkjet printer 101 case 102 front frame 103 Open / close cover 104 frames 105 side frame 110 trays 111 tray body 112 convex 115 Coarse separation pad 120 locking means 121 Toggle mechanism 122 storage frame 123 Toggle lever 124 Toggle spring 130 Operation panel 140 paper transport 141 paper evacuation section 141a cover 141b Paper guide 141c Separation pad 142 paper feed roller 142a, 142b Planetary rollers 142c support arm 142d swivel axis 142e, 142f Roller planetary gears 142g sun gear 142h, 142i axis 143 Paper scoop 144 driven roller 145 Paper feed roller 146 Paper guide 147 Paper ejection roller 148 Paper ejection roller 149 Middle support 150 printing department 151 carriage 151a Carriage body 151b Balance member 152 ink cartridge 153 recording head 154 Guide rod 155 flexible wiring board 160 control unit 170 Transport drive unit 171 drive motor 172 encoder 180 Print drive 181 drive motor 182 Linear encoder 183 belt mechanism

Claims (3)

[Claims] 1. A device for supplying a recording medium stored in a tray to a recording unit, wherein the recording medium is oscillated around a roller shaft supported by both side frames so that the recording medium can alternately come into contact with the recording medium. The first supply roller and the first supply roller which are integrated and send the recording medium in the tray in a direction opposite to the supply direction to the recording unit.
Second supply roller that supplies the recording medium sent by the supply roller in the supply direction to the recording unit, and the first supply roller and the second supply roller that are arranged on one of the side frames. And a planetary gear mechanism that holds and drives the supply roller. 2. A recording device for recording on a recording medium, comprising the supply device according to claim 1. 3. The recording apparatus according to claim 3, wherein the recording unit, the first and second supply rollers, and the planetary gear mechanism are arranged side by side above the tray.