JP2003137445A - Paper feeding cassette - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an end guide capable of exhibiting a sufficient aligning function even when paper sheets are placed in many numbers and capable of preventing distortion of the recording paper sheet even when the number of the sheets are small. SOLUTION: This paper feeding cassette equipped with a regulating member (the end guide 50) for regulating a rear end part of the recording paper sheet 60 is further provided with elastic members (a foamed body 52 and a film 53) for pressing the rear end part of the recording paper sheet to the regulating member. The elastic members (the foamed body 52 and the film 53) are constituted to have smaller elastic force at a lower part than at an upper part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet feeding device such as a facsimile machine and a copying machine, and more particularly, to an end guide which comes into contact with an end face of a recording paper layered on the sheet feeding device.

[0002]

2. Description of the Related Art Conventionally, as in the example shown in FIG.
A paper feed cassette 12 that constitutes a paper feed unit of an image forming apparatus such as a facsimile machine is a flapper 2 on which a recording paper 60 is placed.
1, a slidable side guide (80, 80 shown in FIG. 6) that regulates the side end of the recording paper 60, and a slidable end guide 50 that regulates the rear end of the recording paper. . Further, a separating claw 22 is swingably provided on the front end side of the recording paper in the paper feeding cassette, and when the paper feeding cassette is stored in the paper feeding device, the flapper rises to bring the recording paper to the maximum position. Both corners of the leading edge of the upper sheet are engaged with the separation claw 22. To store the recording paper in the paper feeding cassette, first, the flapper is locked at the lowest position, and the recording paper 60 is aligned in the lateral direction by the side guide. In this state, the front end surface of the recording paper is brought into contact with the standing portion of the separation pawl 22, while the end guide is brought into contact with the rear end portion of the recording paper. The recording paper 60 is accommodated between the end guide 50 and the end guide 50.
Then, by rotating the pickup roller 25, the recording sheets are separated and fed one by one.

Further, as to an example of a structure for pressing the rear end portion of the end guide 50, as shown in FIG. 7, a foam is formed on the surface of the standing portion 55 of the end guide 50 facing the rear end portion side. A foam 52 such as sponge rubber is attached, and the foam 5
There is a plate-shaped (or block-shaped) 2 having a structure in which a film 53 is attached to the surface on the rear end side. In such a structure, when the end guide 50 is slid to a predetermined position according to the size of the recording paper 60 and brought into contact with the rear end portion of the recording paper 60, the foam body 52 is compressed and deformed, and the foam body 52 is compressed. The film 53 having the restoring force presses the rear end portion of the recording paper 60 so that the recording paper 60 can be aligned at an appropriate position (alignment action).

[0004]

However, when the paper feed cassette is stored in the main body of the apparatus from the pulled-out state, the flapper 21 is unlocked, and the flapper 21 is pushed up by the spring 65, so that the uppermost layer is ejected. Recording paper 6
0 is locked by the separation claw 22 ((a) in FIG. 8). At this time, when a small number of recording papers are stacked on the flapper 21, that is, when the paper feed cassette is stored in the apparatus main body in a state where a small number of recording papers are stacked, the flapper moves the rotation fulcrum 21a. When pushed up by the spring as the center, the front end of the uppermost recording sheet 60 is separated from the separation claw 22 by a distance L ((a) in FIG. 8). This is the flapper 21 due to the rotation fulcrum 21a.
This is because the front end of the flapper 21 moves rearward along an arcuate locus and the horizontal distance S between the front end of the flapper 21 and the rotation fulcrum 21a is shortened (Fig. 8 (a)). As a result, a phenomenon occurs in which only a part of the leading edge of the recording paper is locked to the separation claw 22, and further, it is disengaged from the separation claw 22. This problem can be solved by arranging the position of the end guide 50 on the front side rather than the predetermined position when stacking (replenishing) a small number of recording papers 60 in the paper feeding cassette 12. In this way, since the recording sheet is bent between the end guide 50 and the separation claw 22 (the standing part of the separation claw) when it is positioned on the front side, and the user is anxious, the user is forced to perform such work. I think it is not appropriate.

On the other hand, the recording paper 6 layered on the flapper 21
When 0 is full, that is, when the paper feed cassette 12 is housed in the main body of the apparatus with a large number of recording papers 60 stacked, even if the flapper 21 rises, the uppermost recording paper 6
Since 0 does not move up and down, it is not separated from the separation claw 22 by the distance L ((b) of FIG. 8). In this state, the foam 52 of the end guide 50 is in a state of being compressed by the weight of paper. However, when the recording sheets stacked in a full state on the flapper 21 are fed out from the sheet feeding cassette 12 and the remaining amount becomes small, the foam 52 is discharged.
Is restored from the compressed state, the recording paper is pushed to the separation claw 22 side, and the recording paper 60 is bent between the end guide 50 and the separation claw 22 ((c) of FIG. 8, at position 61). Shows the state of bending). That is, the paper feed cassette 1 in a full state
When 2 is housed in the apparatus main body, the reaction force exerted by the recording paper as a whole is large even when the end guide 50 is brought into contact with the trailing end of the recording paper.
2 is compressed, the recording paper is not bent, and the rear end side is pressed by an appropriate pressing force. However, as the recording paper decreases, the foam body 52 is restored and the rear end of the recording paper is moved forward. It pushes it out. If the extrusion length due to the restoration of the foam 52 is larger than the distance L generated between the separation claw 22 and the front end of the recording paper 60 due to the rise of the flapper, the recording paper sandwiched between the end guide and the separation claw 22. Will bend.

In view of the above problems, the present invention provides a recording paper 6
It is an object of the present invention to provide an end guide that exhibits a sufficient aligning function even when a large number of sheets of 0 are stacked and at the same time does not bend the recording paper 60 even when the number of recording papers 60 is small. is there.

[0007]

The present invention uses the following means in order to solve the above problems in the sheet feeding device. First, as described in claim 1, a paper feed cassette provided with a regulating member for regulating the trailing end portion of the recording paper, wherein the regulating member is provided with an elastic member for pressing the trailing end portion of the recording paper. Means that the elastic force of the lower part is smaller than that of the upper part. According to this structure, even if the regulating member (end guide) is firmly brought into contact with the trailing edge of the recording paper in a state where the paper feed cassette is pulled out and a small number of recording papers are layered on the flapper, the elasticity of the lower part of the recording paper is reduced. The elastic member having a weak force easily elastically deforms and the recording paper does not bend. Then, when the paper feed cassette is stored in the main body of the apparatus, the flapper rises, but at that time, since the front end of the recording paper is not regulated by the separation claw, the elastic member is restored from the elastically deformed state, The front edge of the recording paper is properly separated. Claw side (front side)
Since there is no gap between the separation claw and the front end of the recording paper, the feeding failure by the pickup roller does not occur. On the other hand, when the paper cassette is stored in the main body of the apparatus with a large number of recording papers stacked on the flapper, the large reaction force generated by a large number of recording papers when the remaining amount of recording papers is large. Thus, the elastic member elastically deforms, so that the rear end portion can be appropriately pressed without bending the recording paper. From this state, when the remaining amount of recording paper is low, the elastic member is restored and the recording paper is pushed forward, but since the elastic force of the lower part is small, the amount of pushing out due to restoration is small, Do not push the recording paper too far forward. That is,
Even if the recording paper is reduced, the recording paper does not bend. As described above, according to the end guide having the above structure, it is possible to always press the rear end portion of the recording paper with an appropriate pressing force regardless of the remaining amount of the recording paper.

Further, as described in claim 2, the elastic member is provided with a foam attached to the regulating member, and a film attached to the foam and abutting on a rear end portion of the recording paper. That is. According to this configuration, the elastic force of the foam,
The elastic force of the film can be set separately, the degree of freedom in setting the elastic force can be expanded, and the film can protect the foam from damage.

Further, as described in claim 3, the lower end of the film attached to the foam is a free end, and the free end urges the trailing end of the recording paper. . According to this structure, the aligning action is not lost to the last sheet due to the free end.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a schematic structure of a facsimile machine to which the intermediate conveying device of the present invention is applied will be described with reference to FIG. Further, although the direction of arrow A shown in FIG. 1 is the front of the entire apparatus of the facsimile apparatus 1, in the following description, for convenience of explanation, the direction of arrow B shown in FIG. The recording paper feeding direction in
The front-rear and left-right positions of each structure will be described with reference to the feeding direction. In addition, the front-rear and left-right positions of the respective structures in other drawings will also be learned.

In the facsimile apparatus 1, an image reading section 3 is arranged above the image recording section 2 and a paper feeding section 4 is arranged below the image reading section 3. Further, an intermediate conveyance section 5 is provided between the image recording section 2 and the sheet feeding section 4, and the intermediate conveyance section 5 supplies the recording sheet from the sheet feeding section 4 to the image recording section 2. ing. Then, after recording the image on the recording paper supplied to the image recording unit 2, the recording paper is ejected to the recording paper ejection tray 11 provided on the front side of the apparatus at the upper part of the image recording unit 2. I have to.

In the image reading unit 3, the image reading unit 3
The upper surface of the casing of the
An image reading device including a scanning body or the like provided with a mirror is housed, and the original placed on the original placement surface is scanned by the scanning body to perform reading. A document pressing cover 7 configured to be openable and closable around one side of the image reading unit 3 is arranged above the image reading unit 3, and a document placed on the document mounting surface is moved upward by the document pressing cover 7. It is supposed to be pressed from.

An automatic document feeder (ADF device) 8 for automatically feeding a document is attached to one end of the document pressing cover 7. Further, the automatic paper feeder 8 is provided with a document tray 9, and a document discharge tray 10 is formed on the upper surface of the document pressing cover 7. Then, the originals placed on the original tray 9 are picked up and conveyed one by one by the automatic paper feeding device 8, and the scanning body is scanned by the image reading unit 3 as well.
The contents of a document conveyed while being stationary inside is read, and then the document is discharged to the document discharge tray 10.

That is, the image reading unit 3 is used as a flat bed type scanner which scans a scanning body to read a static original, and a sheet feed type scanner which fixes the position of the scanning body and reads the original while conveying the original. It is configured so that it can be used as.

Next, the sheet feeding section 4 will be described with reference to FIGS.
Will be explained. The paper feeding unit 4 is a paper feeding unit 20.2.
It is configured by arranging 0s vertically. Paper feeding unit 20
Is composed of a paper feed cassette case 13 and a paper feed cassette 12, and the paper feed cassette case 13 has a paper feed cassette 12
Is inserted so that the paper feed cassette 12 can move back and forth.

The paper feed cassette 12 is formed so that its upper surface is entirely opened, and a flapper 21 is rotatably supported inside the paper feed cassette 12. Further, frame bodies 14 and 15 are rotatably supported at the front portion of the paper feed cassette 12, and a transport path 16 is formed by the frame bodies 14 and 15. A pickup roller 17 is provided in the paper feeding cassette 12 above the rear portion of the flapper 21, and the pickup roller 17 takes out the sheets placed on the flapper 21 one by one and supplies them to the conveyance path 16. I have to.

A conveying roller 18 is arranged above the frame 15 along the conveying path 16, and a conveying roller 19 is arranged on the frame 14 so as to come into contact with the conveying roller 18. The sheet supplied to the transport path 16 is transported along the transport path 16 by the transport rollers 18 and 19. Further, openings are formed in the lower surface of the front portion of the paper feed cassette 12 and the upper and lower surfaces of the front portion of the paper feed cassette case 13 so that the paper can be conveyed from the lower side to the upper side along the conveying path 16. Has been done. Then, the adjacent paper feeding units 2
The transport paths 16 and 16 of 0 and 20 are connected to each other. Therefore, even when the sheet feeding units 20 are vertically arranged in a plurality of stages, the medium feeding unit 20 is lower
The sheet can be conveyed via the sheet feeding unit 20 provided in the upper layer.

Next, the structure of the end guide 50 will be described. As shown in FIGS. 3 and 4, the end guide 50 includes a guide 51 that is movable in the front-rear direction in the paper feed cassette 12, and a foam body 52 that is attached to the front surface of the guide 51.
And a film 53 that is attached to the front surface of the foam body 52 and contacts the rear end of the recording paper 60.

The guide 51 is made of a synthetic resin having an appropriate elasticity, and as shown in FIG. 3, a horizontal flat plate-shaped mounting portion 54 and a foam 52 which is erected from the rear portion of the mounting portion 54.
And an upright portion 55 to which is attached, and has a substantially "L" shape in a side view. The upper surface of the mounting portion 54 is a part of the rear end side of the recording paper 60 (in the present embodiment, the left and right center portion on the rear end side).
Is used as the mounting surface 54b.

The guide 51 is movable in the front-rear direction along a rail (not shown) provided on the paper feed cassette 12 side. Further, locking portions 56, 56 are provided on the left and right end portions of the mounting portion 54 of the guide 51 in a plan view, and the tooth portions 56a, 56a are provided on the left and right outer end surfaces of the locking portions 56, 56.
Is formed. The same tooth portion is formed on the inner surface of the rail over the entire length of the rail.
The guide 51 is fixed by engaging both tooth portions after moving the rail to a desired position along the rail.

Through-grooves 58, 58 are formed continuously from the mounting portion 54 to the standing portion 55 near the left and right ends of the upper surface of the mounting portion 54 and the standing surface of the standing portion 55.
The left and right outer portions of the mounting portion 54 with respect to the through-grooves 58, 58 are bent inward and elastically deformable.
With this configuration, by pinching the left and right standing base portions of the standing portion 55 from both sides with the fingers, the tooth portion 56a is disengaged from the tooth portion on the rail side and the position fixing of the guide 51 is released, and the front and rear positions thereof can be adjusted. Becomes After the guide 51 is moved to the desired position, if the pinching force is released, the teeth 56a are again engaged with the teeth on the rail side by the restoring force, and the guide 5
1 is fixed in that position.

Further, a plurality of film insertion openings 57, 57 which are concave portions (two locations in this embodiment) are formed in the mounting portion 54, and as will be described later, the film insertion openings 57, 57 are formed.
The lower portion of the film 53 (the convex portions 59, 59) is inserted into the. Further, a lane guide 54a that is long in the front-rear direction is provided so as to project from the center of the mounting portion 54 on the bottom side in the left-right direction, and the lane guide 54a is engaged with and slides on the rail provided in the paper feed cassette 12. As a result, the moving direction of the guide 51 is guided in the front-back direction.

As shown in FIG. 3, the foam body 52 is formed in a plate shape having a predetermined thickness in the front-rear direction, and its rear surface is attached to the front surface of the standing portion 55 of the guide 51 while the front surface is attached to the front surface. The film 53 is attached. The range in which the foamed body 52 covers the front surface of the standing portion 55 of the guide 51 is a range in which the foam member 52 covers the inside of the through-grooves 58, 58 in the front view and the upper surface of the mounting portion 54 in the vertical direction ( The range is from a position higher than the mounting surface) by a predetermined height H1 (FIG. 4) to the upper end of the standing portion 55. That is, the foam 5
The lower end of 2 is arranged at a position higher than the mounting surface of the mounting portion 54 by H1.

The material of the foam 52 is a sponge made of urethane foam, which has a low expansion ratio and is hard to set,
A so-called sponge rubber made by blending natural rubber or the like, which has little change in elastic force due to aging, is applied. Incidentally, the elastic force (elastic modulus) referred to here is
It is the stress determined by the ratio (Young's modulus) of the compressive stress in the direction of pressing the recording paper 60 and the compressive strain in the direction of pressing. Further, as the foam body 52, a leaf spring may be applied instead of the sponge or the like. Further, the above-described height H1 (FIG. 4A) is determined and adjusted by the elastic coefficient of the material of the foam 52 and the “stiffness” (hardness of bending) exhibited by the recording paper 60. For example, the foam 52
The distance between the lower end of the and the above-mentioned mounting surface is zero (that is, H1 =
In the configuration of 0), an experiment was performed by changing the number of the recording papers 60 variously, and when the recording papers 60 were bent, the thickness of the 15 recording papers 60 was increased to the above-mentioned value. That is, it is set to H1.

The film 53 shown in FIG. 3 is a plastic film having a uniform thickness (about 0.2 mm to 1 mm), and is, for example, Teflon (registered trademark) excellent in low friction, non-adhesiveness and abrasion resistance. ) Products etc.

The film 53 is formed so as to have appropriate elasticity and is attached to the front surface of the foam body 52 so as to cover the entire front surface area of the foam body 52. Further, the upper portion of the film 53 is bent slightly obliquely rearward at the position of the upper end of the foam body 52, and this inclined surface allows the edge of the sheet to be guided when the sheet is set.
In addition, a plurality of (in this embodiment, 2
Rectangular projections 59, 59 of (location) are projected downward, and the projections 59, 59 are placed on the mounting surface 54 of the mounting part 54.
It is inserted in the film insertion opening 57 formed in b. Therefore, the lower end of the film 53 is located below the mounting surface 54b. In this way, the lower end of the film 53 attached to the foam body 52 (the convex portion 59.5
9) is a free end, and the free end biases the trailing end of the recording paper.

The lower end of the film 53 is located below the mounting surface by using the projection 59 and the film insertion opening 57, and by forming an insertion groove having a width substantially the same as the width of the film 53. A configuration in which a concave portion is formed and the entire area of the lower portion of the film 53 is inserted into the insertion groove can be considered. Alternatively, in addition to the form in which the film 53 is inserted into the film insertion ports 57, 57, the placing portion 54 is cut out to have a concave shape in a plan view,
The tip of the film may be arranged in the concave opening. That is, the lower end of the film 53 (including the convex portions 59, 59 when the convex portion is formed from the lower end) is located lower than the placing surface 54b, that is, the lowermost recording paper 60a. Absent. Here, the lowermost recording paper 60a is the recording paper 60 provided at the lowest position of the recording papers 60 that are stacked (direct contact with the mounting surface 54b and the flapper 21).

Next, the operation of the end guide 50 constructed as above will be described. FIG. 4A shows several tens of sheets.
FIG. 4 is a partial side sectional view of the end guide 50 in a state where a large number of recording papers 60 such as several hundreds are stacked.
(B) is a partial side sectional view of the end guide 50 in a state in which a small number of recording papers 60 such as a range of several sheets to a dozen or more sheets are stacked.

As shown in FIG. 4A, when a large number of recording papers 60 are layered and the end guide 50 is fixed at a position corresponding to the size of the recording papers 60, the foam 52 is compressed and repelled. The force acts to press the recording paper 60 forward. On the other hand, when the stack height is less than the predetermined height H1 as shown in FIG. 4B, the foam body 52 is hardly compressed, and instead, the lower end portion of the film 53 (including the convex portions 59, 59). Bends rearward, and the restoring force presses the rear end. That is, FIG.
As is clear from the comparison between (a) and (b), the recording paper 6
When the amount of 0 is large, the restoring force of the foam body 52 acts as a pressing force, while when the amount of the recording paper 60 is small, the restoring force of the foam body 52 does not act as a pushing force, and the small restoring force of the film 53. Only the chimney will press the rear end. That is, the pressing force at the rear end portion changes depending on the amount of the recording paper 60. Thus, the foam 52 and the film 53
And function as elastic members, and the elastic forces of the upper portion and the lower portion of the end guide 50 differ due to the different elastic forces of the two. That is, the paper feed cassette 1 provided with a regulating member (end guide 50) that regulates the trailing edge of the recording paper.
The elastic member that presses the trailing edge of the recording paper is provided on the regulating member, and the elastic member has a lower elastic force at the lower portion than at the upper portion.

Further, the lower end of the film 53 (including the convex portion when the convex portion 59 is formed from the lower end) is placed on the mounting portion 5.
4 (the film insertion openings 57, 57 or the through groove), and the lower end thereof is located below the lowermost recording paper 60a. Even if it becomes one sheet, the film 53 will surely press the rear end portion of the recording paper 60.

Next, the effect of the above-described action of the end guide 50 will be described. First, as shown in FIG. 4A, in a state in which a large number of recording papers 60 such as several tens to several hundreds are stacked, the foamed body 52 that compressively deforms acts to press the recording paper 60 forward. To do. A large amount of force is required to align the recording sheets 60 that are superposed on each other, but the rear end portion of the recording sheets 60 is pressed with a considerable amount of force by the restoring force of the compressed foam body 52. The paper 60 is properly aligned. On the other hand, since a large number of recording papers 60 are layered, they will not bend even if a slightly strong pressing force is applied. In addition, as shown in FIG.
When the number of stacked layers of 0 is small and the stack height is less than the height H1, the film 53 that bends backward acts to press the recording paper 60 forward. Although a small number of recording papers 60 are easily bent, since the repulsive force (restoring force) of the film 53 that presses the rear end portion is small, the recording papers 60 do not bend and cause skew or paper jam. Further, the film 53 is better than the lowermost recording paper set on the placement surface of the guide 51.
Since the lower end of the film is at a low position, even if the recording paper 60 fed one after another becomes the last one, the film 53 surely abuts on the rear end of the recording paper 60 to perform the aligning action.

Further, as described above, the elastic member is composed of the foam member adhered to the regulating member (end guide 50) and the film 53 adhered to the foam member 52 and abutting the trailing end of the recording paper. Therefore, the elastic force of the foam 52 and the elastic force of the film 53 can be set individually,
The flexibility of setting the elastic force is widened, and the film 53 can protect the foam from damage.

Next, another embodiment of the structure of the end guide 50 will be described. FIG. 5A is a partial side sectional view of the end guide 50 in a state in which a large number of recording papers 60 such as several tens to several hundreds are stacked, and FIG.
FIG. 6 is a partial side cross-sectional view of the end guide 50 in a state in which a small number of recording papers 60 such as a range of several sheets to a dozen sheets are stacked.

As shown in FIG. 5A, the end guide 50 of this embodiment includes a guide 51 that is movable in the front-rear direction in the paper feed cassette 12, and a foam body 52 that is attached to the front portion of the guide 51. A film 53 that is attached to the front part of the foam 52 and contacts the rear end of the recording paper 60, and the elastic force in the lower portion H4 (including the middle portion H5) of the foam 52 is
It is smaller than the elastic force in the upper portion H6.

More specifically, as shown in FIG. 5A, in the foam 52, the lower portion H4 is replaced with the lower foam 52.
a, the middle part H5 is a middle part foam 52b, and the upper part H6 is an upper part foam 52c, and the upper part foam 52c → the middle part foam 52b →
The lower foam body 52a is made to have a smaller elastic force in this order. Each of the foam bodies 52a, 52b, 52c is formed as a separate body, and the rear surface thereof is attached to the front side surface of the standing portion 55, and the film 53 is attached to the front surface. In this embodiment, the foams 52a, 52b, 5
Although 2c is configured by three separate bodies, the number of separate bodies is not particularly limited as long as the lower elastic force is small. For example, the same action and effect can be exhibited even if the foaming rate or the like is changed for each part at the time of molding so as to form a single plate body having a partially different elastic force. Further, as the foam body 52, a leaf spring may be applied instead of the sponge or the like. Even when the leaf spring is applied, the elastic force of the leaf spring is configured to be different for each height.

With the above-described structure, a structure can be achieved in which the pressing force applied to the trailing end side of the sheet in the sheet feeding direction changes according to the amount of the recording sheet in the sheet feeding cassette. That is, when there are many recording sheets, a strong pressing force is applied to the rear end portion by the upper foam body 52c, and when there are few recording sheets, the middle foam body 52c.
A weak pressing force is applied to the rear end portion by b or the lower foam body 52a.

[0037]

According to the present invention, the force for pressing the end surface of the paper is
Since it changes depending on the amount of paper, even if there are many papers to be set, the effect of guiding and aligning the papers is exerted well, but even if the number of papers is small, the papers will not be bent and will be bent with a suitable force. It is possible to carry out the aligning action. Therefore, regardless of the number of sheets set, the sheet can be reliably and smoothly fed from the sheet feeding cassette, and skew and paper jam can be effectively and stably prevented.

[Brief description of drawings]

FIG. 1 is a perspective view of a facsimile device.

FIG. 2 is a side sectional view of the same.

FIG. 3 is a perspective view showing a configuration of an end guide according to the present invention.

FIG. 4A is a partial side cross-sectional view of the end guide in a state in which a large number of recording papers such as several tens to several hundreds are stacked. (B) is a partial side sectional view of the end guide in a state in which a small number of recording papers, such as a range of several sheets to a dozen sheets, are stacked.

FIG. 5A is a partial side sectional view of another embodiment of the end guide in a state in which a large number of recording papers such as several tens to several hundreds are stacked. (B) is a partial side sectional view of another embodiment of the end guide in a state in which a small number of recording papers, such as a range of several sheets to a dozen or more sheets, are stacked.

FIG. 6 is a perspective view showing an example of a configuration of a paper feed cassette.

FIG. 7 is a side view of an end guide having a conventional configuration.

FIG. 8 is a side view showing a stacking state of recording papers with an end guide having a conventional configuration, and FIG. 8A is a recording view when a paper feed cassette is stored with a small number of recording papers stored. A side view showing the state of the paper, (b) is a side view showing the state of the recording paper when the paper feed cassette is stored with a large number of recording papers stored, (c) is a large number of the recording paper FIG. 9 is a side view showing a state of the recording paper when the recording paper is reduced after the paper is stored.

[Explanation of symbols]

50 End Guide 51 Guide 52 Elastic member 53 films H1 predetermined height

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Claims (3)

[Claims] 1. A paper feed cassette comprising a regulating member for regulating the trailing end portion of a recording sheet, wherein the regulating member is provided with an elastic member for pushing the trailing end portion of the recording paper, the elastic member being different from the upper portion. A paper feed cassette characterized by having a lower elastic force. 2. The elastic member includes a foam body attached to the regulation member, and a film attached to the foam body and abutting on a rear end portion of the recording paper. Paper feed cassette described in. 3. The feed according to claim 2, wherein the lower end of the film attached to the foam is a free end, and the free end urges the trailing end of the recording paper. Paper cassette.