JP2002068491A - Paper feed cassette and recording device equipped with paper feed cassette - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid such an occurrence that the body part of a paper feed cassette is set in the body of a recording device in the condition that the lid of the paper feed cassette capable of exerting various effects specified is not put in place. SOLUTION: The paper feed cassette 50 is furnished on the side faces with second rails 6a and 6b which are engaged with the first rail 117 formed on the body side of the recording device so as to make guidance of the cassette setting in the body of recording device. A rotary member 7 furnished with a stopper part 7a and lever part 7c is installed rotatably near the end of the second rail 6b. When the cassette 50 is to be set, the forefront 117a of the first rail 117 advances on the route exhibited by the broken line, and if lids 2 and 3 are not in place, the advancing route is intercepted by the stopper part 7a so that the cassette 50 is hindered from being set in the body of the recording device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a paper feed cassette for depositing and storing recording materials in a recording apparatus such as a printer. The present invention also relates to a recording device provided with the sheet cassette.

[0002]

2. Description of the Related Art In a recording apparatus such as a printer, a facsimile, a copying machine, etc., a paper feed cassette for storing and storing a plurality of print papers as a recording material is generally used. The printing paper is taken out one sheet at a time, fed to a printing unit for printing, and printing (printing) is performed.

Incidentally, such a paper feed cassette is generally removable from the main body of the recording apparatus. It also has a box-shaped main body for storing and depositing printing paper, and a lid that covers the open top of the main body, and this lid is removable from the main body. It has become. Therefore, when replenishing printing paper, the paper feeding cassette is removed from the main body of the recording apparatus, and the lid is removed from the main body to replenish the printing paper.

[0004]

However, after the printing paper is replenished into the main body, only the main body may be mounted on the main body of the recording apparatus without the lid being mounted on the main body. There are problems in various respects. This is because the lid has various effects when mounted on the recording apparatus main body. One of the functions is, for example, a safety function. When a configuration is adopted in which the uppermost printing paper stacked in the paper feeding cassette is pressed against the paper feeding roller and taken out, the printing paper stacked by the hopper mechanism is taken out. Is pushed upward from below, but is based on the viewpoint that fingers may be pinched between the printing paper and the paper feed roller without the lid. In addition, there is, for example, a paper discharge tray function. This is a recording apparatus having a feeding path in which the print paper taken out of the paper feed cassette is inverted in a U-shape and returns to the paper feed cassette side again. This is based on the viewpoint that the cover of the paper feed cassette can perform a paper discharge tray function of receiving and holding recorded print paper discharged from above as a result of the U-shaped inversion. In addition, the attachment of the lid prevents the intrusion of dust from the outside, thereby preventing the dust from adhering to the recording surface of the printing paper, thereby maintaining the printing quality. Therefore, if the cover is not attached when the paper cassette is attached to the main body of the recording apparatus, it goes without saying that the functions of these lids as an example cannot be exerted. However, there is a risk that the paper feed cassette main body may be mounted on the main body of the recording apparatus without the lid.

In view of the above, the present invention has been made in view of the above-described problems, and has as its object to solve the above-mentioned problems. An object of the present invention is to avoid the problem of mounting the main body in advance.

[0006]

According to a first aspect of the present invention, there is provided a paper feed cassette, comprising: a box-shaped main body for storing and storing a recording material; A sheet cover cassette detachably attached to a recording apparatus main body that performs recording on a recording material, the sheet cassette comprising: a cover section that covers an open upper portion and is detachably attached to the main body section. A mounting prevention unit for preventing mounting on the recording apparatus main body when the lid is not attached to the main body, When the cover is attached to the main body, the cover is configured to be in a non-mounting preventing state in which the cover can be mounted to the recording apparatus main body.

According to the first aspect of the present invention, since the sheet cassette cannot be attached to the main body of the recording apparatus when the lid section is not attached, the sheet cassette lid section plays when the recording apparatus is used. The operation and effect can be always obtained. That is, there is provided mounting prevention means for preventing the paper cassette from being mounted on the main body of the recording apparatus, and the mounting prevention means prevents mounting on the main body of the recording apparatus when the lid is not mounted on the main body. Is in a mounting prevention state. When the lid is attached to the main body, the lid is configured to be in a non-attachment prevention state in which the lid can be attached to the recording apparatus main body. This prevents the wrong paper cassette from being attached to the main body of the recording apparatus beforehand, and the operation effect of the lid portion, for example, the effect of preventing the finger from being pinched by the hopper mechanism for pressing the recording material against the paper feed roller, It is possible to always obtain the paper discharge tray function when the unit also serves as the paper discharge tray, the manual paper tray function when the lid also serves as the manual tray, and the effect of preventing dust from entering from outside. .

According to a second aspect of the present invention, in the paper feed cassette according to the first aspect, a hopper mechanism for pressing the uppermost one of the stacked and stored recording materials against a sheet feeding roller for feeding the recording materials. When the recording material is fed, the recording material accumulated and stored in the main body is pushed up toward the paper feed roller. According to the second aspect of the present invention, since the hopper mechanism for pressing the uppermost one of the stacked and stored recording materials is provided, if the lid is not attached to the sheet feeding cassette, There is a possibility that a finger may be pinched between the recording material and the paper feed roller by the mechanism, so that the operational effect of the invention described in claim 1 of the present application can be further obtained.

According to a third aspect of the present invention, in the first or second aspect, the main body of the recording apparatus causes the recording material taken out of the paper cassette to be curved and inverted, and then returned to the upper side of the paper cassette again. A feed path for discharging a recording material on which recording has been performed, the feeding path having a substantially U-shape in side view, wherein the cover receives and holds the recording material discharged from above by the lid. It also has a tray function. According to the third aspect of the present invention, since the lid portion also has a discharge tray function of receiving and holding the recording material to be discharged, when the lid portion is not attached to the paper feed cassette, This function cannot be exerted, so that the effects of the invention described in claim 1 of the present application can be further obtained.

According to a fourth aspect of the present invention, in the first or second aspect, the cover has a manual tray function for manually feeding the recording material. According to the invention described in claim 4 of the present application, since the lid portion also has a manual feed tray function for manually feeding the recording material, this function is exhibited when the lid portion is not attached to the sheet cassette. Therefore, the operation and effect of the invention described in claim 1 of the present application can be further obtained.

According to a fifth aspect of the present invention, in the paper cassette according to the first or second aspect, the cover portion has both the discharge tray function according to the third aspect and the manual tray function according to the fourth aspect. It is characterized by having. According to the invention as set forth in claim 5 of the present application, since the cover has both the discharge tray function as set forth in claim 3 and the manual feed tray function as set forth in claim 4, the cover is provided on the sheet feeding cassette. If not installed, these two functions cannot be exhibited,
Therefore, it is possible to further obtain the function and effect of the invention described in claim 1 of the present application.

According to a sixth aspect of the present invention, in the sheet feeding cassette according to the fifth aspect, the cover guides a side end of the recording material during manual feeding to define a feeding position in the main scanning direction. It is provided that the side end guide member is formed so that the guide surface extends along the vertical plane at the lower part and expands upward at the upper part. Features. Claim 6 of the present application
According to the invention described above, since the lid portion includes the side end guide member that guides the side edge of the recording material during manual feeding, the feeding of the recording material in the main scanning direction during manual feeding is performed. The position can be easily determined.
Further, the guide surface for guiding the recording material side end is formed with a side end guide member so as to extend along the vertical plane at the lower part and to expand at the upper part at the upper part. The side edge of the recording material discharged from above rides on the upper surface of the side edge guide member when the side edge guide effect at the time of the manual feed is properly utilized by using the vertical surface and functions as a discharge tray. Without this, it can be smoothly dropped on the upper surface of the lid, and both the manual tray function and the discharge tray function can be properly performed.

According to a seventh aspect of the present invention, in the paper feed cassette according to any one of the first to sixth aspects, the lid is not removable when the cassette is mounted on the recording apparatus main body. Features. According to the invention as set forth in claim 7 of the present application, since the lid is configured to be non-removable in a state where the paper cassette is mounted on the main body of the recording apparatus, only the lid after the sheet cassette is mounted on the main body of the recording apparatus. Can be avoided, and as a result, the effect of the lid cannot be obtained.

According to an eighth aspect of the present invention, in the paper feeding cassette according to any one of the first to seventh aspects, the recording apparatus main body is provided with an opening serving as a paper feeding cassette mounting port, and the inside of the opening is provided. On the left and right side walls, first rails for guiding the installation of the sheet cassette are respectively extended in the mounting direction of the sheet cassette, and on the left and right side walls on the outer side of the main body, the first rails engage with the first rails. Second rails for guiding the mounting of the paper cassette are respectively extended in the mounting direction of the paper cassette, and the mounting preventing means is rotated about respective rotation shafts provided on the left and right side walls on the outer side of the main body. The two rotating members are configured to move with the distal end of the first rail at a position separated from the rotating shaft when the main body is inserted into the opening. Stopper position and contact A stopper portion that can take a non-stopper position, and a lever portion that is pressed down from above on the lid portion at a position separated from the stopper portion with the rotation axis interposed therebetween, and In the non-attached state, the stopper portion is held at the stopper position, and in the attached state of the lid portion, the lid portion pivots around the pivot axis by pressing the lever portion from above, Thereby, the stopper is attached to each of the left and right side walls on the outer side of the main body so as to be held at the non-stopper position of the stopper. According to the eighth aspect of the present invention, since the mounting prevention means is constituted only by the rotating member, it is possible to configure the mounting prevention means at a low cost with a simple structure.

According to the ninth aspect of the present invention, there is provided a recording apparatus according to the first aspect.
The paper feed cassette according to any one of Items 1 to 8, is provided. According to the ninth aspect of the present invention, in the recording apparatus, it is possible to obtain the same operation and effect as those of the first aspect of the present invention.

According to a tenth aspect of the present invention, in the ninth aspect, a lock mechanism for preventing further detachment of the sheet cassette at a position where the sheet cassette is detached by a predetermined amount from a regular attachment position is provided. Features. According to the tenth aspect of the present invention, since the lock mechanism for preventing further attachment / detachment is provided at a position where the sheet cassette is detached from the regular mounting position by a fixed amount, the sheet cassette is moved to the regular mounting position. When the paper cassette is removed from the paper cassette, it is possible to prevent the sheet cassette from dropping downward and being damaged, thereby preventing the paper cassette from being damaged.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. First, referring to FIGS. 1 and 2, an ink jet printer (hereinafter, referred to as a “printer”) as a “recording device” according to the present embodiment will be described.
The outline of 100 will be described. FIG. 1 shows a printer 10.
2 is a side view of a feeding path schematically illustrating a roller group centering on a side surface of the sheet cassette 50. FIG.

In FIG. 1, a printer 100 includes a main body 10.
1 has an opening 102 on the front surface thereof, and a paper cassette 50 in which printing paper (cut sheet: hereinafter referred to as “paper P”) as a “recording material” can be deposited and stored in the opening 102.
Is configured to be mounted. Note that the paper cassette 5
0 will be described later in detail. The paper feed cassette 50 is roughly composed of a main body 1 for accumulating and storing the paper P, and lids 2 and 3 that cover an open upper part of the main body 1. The lid 2 is made of a translucent resin material, and it can be determined at a glance from the outside whether or not the paper P is stored in the main body 1.
The cover 3 also functions as a paper discharge tray for receiving and holding the paper P to be recorded and discharged, and also functions as a manual tray when the paper P is manually fed.
These functions of the lid 3 will also be described later in detail.

In FIG. 2, the printer 100 is provided with a feeding path having a substantially U-shape in side view, in which a fed sheet P is curved and inverted by a group of rollers. Therefore, as is clear from FIG. 2, the sheet P fed from the sheet cassette 50 is taken out to the left from the left end of the sheet cassette 50 in FIG. The feeding direction is changed to the right side, and returns to the paper feed cassette 50 side again. Paper P to be ejected
Falls from above toward the lid 3, so that the lid 3 functions as a paper discharge tray. still,
The right side in FIG. 2 is the front side (the front side in FIG. 1) of the printer 100 main body.

More specifically, a plurality of sheets P are stacked and stored in the main body 1 of the sheet cassette 50. At the time of feeding, the hopper mechanism (not shown) collects and stores the stacked sheets P. The left end in FIG. 2 is pushed up from below. As a result, the uppermost one of the stacked and stored sheets P comes into pressure contact with the sheet feeding roller 106. The paper feed roller 106 has a substantially D-shape, and a rubber material (not shown) is wound around the outer peripheral surface of the paper feed roller 106 to generate a frictional force with the paper P. Feed. When recording is performed on the paper P, the substantially flat surface is rotated to a position facing the paper P, and the paper P is controlled so as not to apply back tension.

The roller 107 reverses the curvature of the sheet P to form a feeding path for the printer 100. Roller 108, 1
Reference numeral 09 denotes a transport roller, and the sheet P
8, 109 and the recording head 10 at a constant pitch.
3a sent to the lower part. The recording head unit 103a is provided at the bottom of the carriage 103. The carriage 103 is guided by the carriage shafts 104 and 105, and is moved in the main scanning direction (the front and back sides of the paper in FIG. 2) by an instruction from a control unit (not shown). Reciprocating. still,
The printer 100 includes an ink cartridge (not shown)
Not the carriage 103 but the main body 10 of the printer 100
1 is mounted on the front part, and the carriage 103 is configured to be supplied with ink from an ink cartridge by an ink tube (not shown).

The paper P on which recording has been performed by the recording head 103a is discharged to the front of the printer 100 by discharge rollers 110-115. Discharge rollers 114, 11
Numeral 5 is for regulating the discharge direction of the discharged paper P, whereby the discharged paper P is directed to the cover 3 of the paper feed cassette 50 and falls. . The general configuration of the printer 100 has been described above.

The main body 1 of the paper feed cassette 50 has a separate structure including a front portion 1a and a rear portion 1b, and the front portion 1a can slide with respect to the rear portion 1b according to the size of the paper P. It has become. Also, the lid 2 can be slid with respect to the lid 3 according to the size of the sheet P. Accordingly, a single sheet cassette 50 can handle a plurality of sheet sizes.

Next, referring to FIG. 3 to FIG.
The structure for attaching the sheet cassette 50 to the printer 100 will be described in detail with reference to FIG. Here, FIG. 3 is a perspective view of the printer 100 showing a state in which the paper feed cassette 50 is removed from the printer 100, and FIG. 4 is an enlarged perspective view of a main part of an opening 102 formed in the main body 101 of the printer 100. . 5A and 5B are side views of the sheet cassette 50. FIG. 5A shows a state where the lids 2 and 3 are removed, and FIG. 5B shows a state where the lids 2 and 3 are attached. 3 and 4, the right side wall 102a and the left side wall 102b of the opening 102 described above are provided with a sheet cassette 50.
The first rails 117, 117 for guiding the mounting of the projections respectively protrude inside the opening 102, and
The paper feed cassette 50 is formed to extend in the mounting direction (the depth direction of the main body of the printer 100). The first rails 117, 117 include a right side wall 102a and a left side wall 102b.
More specifically, cuts are made in the metal plate forming the right side wall 102a and the left side wall 102b in the depth direction of the printer 100. It is formed so as to be raised toward the inside of 102. First
Rails 117, 117 engage with second rails 6a, 6b formed on the side of the paper feed cassette 50, which will be described later.

Also, hook members 116, 11 constituting a "lock mechanism" are provided on the right side wall 102a and the left side wall 102b.
6 are provided. The hook members 116, 116 bend a strip-shaped elongated metal plate, thereby forming the saw-shaped portion 11.
6a are provided and provided. On the other hand, in FIG. 2, on the left and right side walls of the main body 1 of the paper feed cassette 50, locking members 5 which form a "locking mechanism" and are engaged with the saw-like portions 116a are respectively attached at positions shown in the figure. . In addition, in FIG.
1 and 116-2, the members drawn by virtual lines are the above-mentioned hook members 116, and the reference numeral 116-1 denotes the approximate position of the hook members 116 in a state where the sheet cassette 50 is mounted at the regular position. Reference numeral 116-2 indicates the position of the hook member 116 in a state where the sheet cassette 50 is pulled out by a predetermined amount toward the printer 100 main body. That is, when the paper feed cassette 50 is pulled out from the state where the paper feed cassette 50 is mounted at the regular position toward the front surface of the main body of the printer 100 (the right side in FIG. 2), the hook member 1 is pulled out.
16 and the locking member 5 relatively move.

As shown in FIG. 2, the saw-shaped portion 116a is disposed such that its saw-shaped “hatch surface” faces the locking member 5. Therefore, when the paper feed cassette 50 is pulled out from the regular position to the right side in FIG. 2 as described above, the catching surface of the saw-like portion 116a and the locking member 5 engage (the state shown by reference numeral 116-2). At this point, the paper cassette 50 is pulled out and locked.
Therefore, when the paper feed cassette 50 is further pulled out from this position, it is necessary to lift the paper feed cassette 50 slightly upward to release the engagement between the saw-like portion 116a and the locking member 5. This prevents the sheet cassette 50 from dropping downward due to excessive momentum when the sheet cassette 50 is pulled out from the regular position, thereby preventing the sheet cassette 50 from being damaged.

Next, the second rail formed on the main body 1 of the sheet cassette 50 will be described. The second rails are formed on both left and right side walls of the main body 1, but for convenience of explanation, are formed on one side wall shown in FIG. The second rail will be described. In FIG. 2, reference numerals 6a and 6b indicate
This shows the second rail. Second rail 6a, 6
b is formed so as to protrude to the front side of the paper surface in FIG. 2 and to extend in the mounting direction of the paper feed cassette 50 (the left-right direction in FIG. 2). Second rail 6b
Is formed from the front side (the right side in FIG. 2) of the printer 100 toward the back side (the left side in FIG. 2), and the second rail 6a has a start end portion corresponding to the second rail 6b. The second rail 6b slightly overlaps with the terminal end, and
Is formed so as to start from below and extend to the vicinity of the locking member 5 described above.

A turning member 7 is mounted near the upper end of the second rail 6b so as to be turnable about a turning shaft 7b. The rotating member 7 has a stopper 7a on the inner side of the printer 100 (left side in FIG. 2).
The lever portion 7c is located at a position separated from the rotation shaft 7b by the rotation shaft 7b.
have. Lever 7c is lower edge 3a on the side of lid 3.
As a result, the lever 7c is turned clockwise in a state shown in FIG. 2 when the cover 3 is attached. On the other hand, when the lid 3 is not mounted, the stopper 7a rotates counterclockwise due to the weight of the stopper 7a, that is, the lower end of the stopper 7a contacts the second rail 6a from above. Is to be held.

FIG. 5 shows this state. FIG.
In the figure, reference numeral 117 denotes the above-mentioned first rail (see FIG. 4).
5 (to the right in FIG. 5 (actually, they move relative to each other. That is, the leading end 117a is fixed to the printer 100 main body side).
0 proceeds from right to left in FIG. ). In addition, a broken line in FIG. 5 indicates a path in which the distal end portion 117a travels on the side surface of the main body 1. When the paper feed cassette 50 is mounted on the main body of the printer 100, the leading end 117a of the first rail 117 passes over the second rail 6a as shown, and passes under the second rail 6b. Lid 2,
When the main body 3 is mounted on the main body 1, as shown in FIG. 5 (B), the turning member 7 is in a state where the lever 7c is pushed down by the lower edge 3a of the lid 3 and is turned clockwise. As a result, the traveling path of the distal end 117a of the first rail 117 shown by the broken line is secured, and the paper cassette 50 can be mounted on the main body of the printer 100. However, when the lids 2 and 3 are not attached to the main body 1, as shown in FIG.
Since the stopper 7a rotates counterclockwise due to the weight of the stopper 7a, the traveling path of the distal end 117a of the first rail 117 indicated by the broken line is blocked by the stopper 7a. . Accordingly, in this state, the sheet cassette 50 cannot be mounted on the main body of the printer 100, that is, is in the mounting prevention state.

As described above, if the lids 2 and 3 are not attached to the main body 1, the paper cassette 50 cannot be attached to the main body of the printer 100. Accordingly, when the sheet cassette 50 is mounted on the main body of the printer 100, the lids 2 and 3 are always attached. It is possible to demonstrate. In the present embodiment, the functions and effects obtained by attaching the lids 2 and 3 are as follows. (1) Dust does not enter from outside. Therefore, dust does not adhere to the recording (printing) surface of the paper P, and high printing quality can be maintained. (2) When the paper P deposited and stored by the hopper mechanism (not shown) is pushed up from below toward the paper feed roller 106 (see FIG. 2), fingers are pushed between the paper feed roller 106 and the paper P.
There is no danger of being sandwiched between them. In the present embodiment, a portion not covered by the cover 3 (a range indicated by a symbol h in FIG. 5B) is a component (not shown) of the printer 100 main body when the printer 100 is mounted. ), It is impossible to insert a finger through the part. (3) The paper discharge tray function can be exhibited. That is,
Since the printer 100 adopts a configuration in which the taken-out sheet P is curved and inverted to be discharged from above the sheet feeding cassette 50, if the cover 3 is attached, the sheet discharging tray function can be exhibited. (4) A manual tray function can be exhibited. That is, in the present embodiment, the lid 3 also serves as a manual tray for performing manual paper feeding. As is apparent from FIG. 2, the lid 3 is located at a position where the sheet feeding operation by the sheet feeding roller 106 can be easily performed. Therefore, if the cover 3 is attached, the manual tray function can be exhibited.
The above is the operation and effect of the lids 2 and 3.

By the way, the paper feed cassette 50 is
When the lids 2 and 3 are mounted in their proper positions, the lids 2 and 3 cannot be removed from the paper feed cassette 50 by the components (not shown) of the printer 100 located above the lids 2 and 3. Has become. Accordingly, this allows the lids 2, 3
When the paper cassette 50 is attached to the printer 100,
By removing only the lids 2 and 3 after being attached to the main body, the problem of losing the function of the lids 2 and 3 is prevented.

Next, referring to FIG. 6 and FIG.
Will be described in detail. FIG. 6 is a plan view of the sheet cassette 50, and FIG.
FIG. 3 is a cross-sectional view (a cross-sectional view of a main part). When used as a manual feed tray, a side end guide member 4 for guiding the side end of the sheet P is attached to the lid portion 3. Side end guide member 4
Is only the right side when viewed from the front side of the printer 100 body (FIG. 1).
Reference: upper side in FIG. 6). Therefore,
When the sheet P is manually fed, the side edge of the sheet P is aligned with the side edge guide member 4 to determine the position in the main scanning direction at the start of feeding.

In FIG. 7, the side end guide member 4 attached to the lid 3 is expanded upward by chamfering the upper surface so that the guide surface 4a is along the vertical plane at the lower side and is chamfered at the upper side. It has such a shape. Therefore,
The position of the sheet P in the vertical direction when the sheet P is manually fed is as shown in FIG. 7C. That is, the sheet P is manually fed while the end of the sheet P is abutted against the vertical surface below the guide surface 4a. Thus, the position in the main scanning direction is reliably determined at the start of feeding of the sheet P, and even when a plurality of sheets of paper P are repeatedly manually fed, the position in the main scanning direction is determined with good reproducibility.

On the other hand, the paper P on which the recording has been performed returns to the upper part of the paper feed cassette 50 again, and is discharged from above the lid 3 to the lid 3. At this time, if the sheet P is ejected in a state of being skewed obliquely, if the shape above the guide surface 4a is not expanded, that is, if the sheet P has a right-angled edge, the sheet P Is hooked on the edge, and is in a state of climbing on the upper surface of the side end guide member 4. However, since the upper edge of the side end guide member 4 is chamfered as described above and has a shape in which the upper part of the guide surface 4a is expanded, the side end of the paper P is
It does not stay on the upper surface of the but falls down smoothly. That is, in FIG. 7, the posture shown in FIG. 7C is changed to the posture shown in FIG. 7B, and eventually falls on the upper surface of the lid 3 and becomes the state shown in FIG. As a result, the following operation and effect can be obtained. The sheet P is discharged in a skewed state on the cover 3, and the sheet P is placed on the upper surface of the side end guide member 4.
When the side edge remains on, when the next sheet P is discharged, the leading end of the next sheet P is moved to the side end guide member 4.
Intensively rubs the recording surface of the paper P riding on the upper surface of the recording medium, and if the ink ejected to the recording surface at this time is in a semi-dry state, this causes the recording surface to become more contaminated. . Further, if the sheet discharging operation is continued in a state where the end of the sheet P rides on the upper surface of the side end guide member 4, the behavior of the sheet P traveling on the upper surface of the lid 3 becomes unstable. However, such an inconvenience can be prevented because the sheet P side end does not ride on the upper surface of the side end guide member 4. In addition, the side end guide member 4
The upper edge portion may be formed by smooth rounding instead of chamfering.

[0035]

As described above, according to the present invention,
Due to the means for preventing the paper cassette from being mounted on the main body of the recording apparatus, the paper cassette cannot be mounted on the main body of the recording apparatus when the cover is not attached. Since the lid is always attached, various operational effects of the lid can always be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of an ink jet printer according to the present invention.

FIG. 2 shows an ink jet printer according to the present invention;
It is a side view of a feeding path.

FIG. 3 shows an ink jet printer according to the present invention;
FIG. 3 is a perspective view illustrating a state where a sheet cassette is removed.

FIG. 4 shows an ink jet printer according to the present invention;
FIG. 3 is a perspective view (an enlarged view of a main part) of an opening.

FIGS. 5A and 5B are side views of the sheet cassette with the cover removed, and FIG. 5B with the cover attached.

FIG. 6 is a plan view of the sheet cassette according to the present invention.

FIG. 7 is a sectional view taken along line xx in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body part 2 Lid part 3 Lid part 4 Side end guide member 5 Locking member 6a, 6b 2nd rail 7 Rotating member 7a Stopper part 7b Rotating shaft 7c Lever part 50 Paper feed cassette 100 Ink jet printer 101 Printer main body 102 Opening 102a Right side wall 102b Left side wall 116 Hook member 116a Saw-shaped portion 117 First rail 117a Tip P Printing paper

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) B65H 1/04 322 B65H 1/04 322 1/14 310 1/14 310A

Claims (10)

[Claims] 1. A box-shaped main body for depositing and storing a recording material, and a lid detachably attached to the main body to cover an open upper part of the main body. A sheet cassette detachably attached to a recording apparatus main body that performs recording on a recording material, comprising: a mounting prevention unit that prevents the recording apparatus from being mounted on the recording apparatus main body; When the cover is not attached to the main body, the attachment to the recording apparatus main body is prevented, and when the lid is attached to the main body, attachment to the recording apparatus main body is possible. A sheet feeding cassette configured to be in a non-mounting prevention state. 2. The feeding device according to claim 1, wherein the uppermost one of the stacked and stored recording materials is pressed against a sheet feeding roller for feeding the recording materials, and the recording material is fed at the time of feeding the recording materials. A sheet feeding cassette, wherein a recording material accumulated and stored in a main body is pushed up toward the sheet feeding roller. 3. The recording material according to claim 1, wherein the recording device main body performs a curved inversion of the recording material taken out of the sheet feeding cassette and returns the recording material to a position above the sheet feeding cassette again. A feed path having a substantially U-shape in side view, wherein the lid also has a paper discharge tray function for receiving and holding a recording material discharged from above by this.
A paper cassette characterized in that: 4. The sheet feeding cassette according to claim 1, wherein the cover has a manual tray function for feeding the recording material manually. 5. A feeding device according to claim 1, wherein said lid portion has both of a discharge tray function according to claim 3 and a manual tray function according to claim 4. Paper cassette. 6. The side end guide member according to claim 5, wherein the lid guides a side end of the recording material at the time of manual feeding to define a feeding position in a main scanning direction. Comprising, such that the guide surface is along the vertical plane at the bottom,
A sheet cassette, wherein the side end guide member is formed so as to expand upward at an upper portion. 7. The sheet feeding cassette according to claim 1, wherein the cover is configured to be non-removable when mounted on the recording apparatus main body. 8. The recording apparatus main body according to claim 1, wherein the recording apparatus main body is provided with an opening serving as a sheet feeding cassette mounting port, and left and right side walls in the opening are provided.
First rails for guiding the mounting of the paper cassette are respectively extended in the mounting direction of the paper cassette, and the left and right side walls on the outer side of the main body are engaged with the first rail to mount the paper cassette. Second rails extending in the mounting direction of the sheet cassette, and the mounting preventing means rotating about two rotation axes provided on left and right side walls on the outer side of the main body, respectively. A stopper position that, when the main body is inserted into the opening, comes into contact with the distal end of the first rail at a position that is separated from the rotation shaft; A stopper portion that can take a non-stopper position that is not in contact with the lever portion; and a lever portion that is pressed down from above on the lid portion at a position that is separated from the stopper portion with the rotation shaft interposed therebetween; Not mounted In the stopper portion, the stopper portion is held at the stopper position, and in the mounted state of the lid portion, the lid portion rotates about the rotation axis by pressing the lever portion from above, whereby the To be held at the non-stopper position of the stopper portion,
A sheet cassette, wherein the sheet cassette is attached to left and right side walls outside the main body. 9. A recording apparatus comprising the sheet cassette according to claim 1. Description: 10. The recording apparatus according to claim 9, further comprising a lock mechanism for preventing further detachment at a position where the sheet cassette has been detached from a regular attachment position by a predetermined amount.