JP4224716B2 - Paper feeding device and image recording apparatus having the same - Google Patents

Description

  The present invention deposits a recording medium having a different size and material from the recording medium accommodated on the first paper feeding cassette on the first paper feeding cassette that accumulates and accommodates the recording medium (cut sheet, paper). Select the recording medium on the first and second paper feed cassettes in a state where the second paper cassette that can be accommodated is movable forward and backward and the recording medium is accommodated in the second paper feed cassette. In particular, the present invention relates to a configuration of a paper feeding device that enables separation and feeding one sheet at a time, and a configuration of an image recording device including the paper feeding device.

  In conventional image recording apparatuses such as various printers and facsimiles, for example, in Patent Document 1, a large number of sheets (recording medium) are placed in a paper feeding cassette that is arranged to be movable back and forth on the lower side of the apparatus main body (housing). , Cut sheets) are stored and accommodated, and a pair of left and right guide holes are formed in the cover body that covers the rear half of the paper feed cassette. A pair of restricting plates for positioning are projected, and a partition plate for vertically partitioning the front opening of the paper feed cassette is disposed in the paper storage portion of the paper feed cassette. A pair of left and right levers protruding from the rear upper surface of the partition plate is loosely fitted in the guide holes, and a paper feed roller provided on the apparatus main body side is disposed on the front opening of the paper feed cassette. It is disclosed. According to this configuration, when recording an image on a manual sheet, when the sheet is placed on a predetermined portion of the partition plate and then moved forward, the upper front portion of the partition plate is positioned below the sheet feed roller. Therefore, the sheet feed roller can be driven to feed one manual sheet on the partition plate. When the partition plate is moved backward, the sheets stacked and accommodated in the sheet feeding cassette can be fed one by one.

  However, in Patent Document 1, the cover that covers the second half of the paper feed cassette is not used as a paper discharge receiving unit for placing the discharged paper.

On the other hand, in Patent Document 2, a sheet-like roller is disposed on the front end portion of one paper feed cassette, and a plate-like cassette on which a large number of sheets are deposited and placed in a paper storage portion of the paper feed cassette. The lower front portion of the base is configured to push up toward the paper feed roller. The paper feed cassette is mounted such that its rear portion protrudes outward from the apparatus main body. Further, in a state where the paper feed cassette is mounted on the apparatus main body, it is slidably mounted so that a cover that covers the rear portion of the upper surface of the paper feed cassette can be projected and retracted with respect to the apparatus main body. When projecting further outward, a configuration is employed in which the top surface of the lid can be used as a paper discharge receiving portion (paper discharge tray).
Japanese Utility Model Publication No. 06-49439 (see FIG. 1, FIG. 2 (a) and FIG. 2 (b)) Japanese Patent Laid-Open No. 08-192927 (see FIGS. 1, 5, and 6)

  However, in the configuration of Patent Document 2, for example, before officially recording an image on a postcard, image recording is experimentally performed on plain paper stored in a paper feed cassette, so that the position of the image and the color condition. If you try to perform a trial print to check the etc., replace plain paper and postcards on the paper cassette one at a time, or prepare multiple paper cassettes containing different sizes and types of paper. In addition, it is necessary to replace a separate paper feeding cassette in the main unit for each sheet that is desired to be used.

  Further, if a lid that also serves as a paper discharge receiving portion as in Patent Document 2 is applied to the cover body at the upper rear portion of the paper feed cassette of Patent Document 1, the front and rear guide means that enables the partition plate to move back and forth. The configuration is complicated, the number of parts is increased, and there is a problem that the whole sheet feeding device cannot be made into a compact form with low bulk.

  In other words, conventionally, there has been no one in which an auxiliary paper feeding unit and a paper discharge receiving unit are integrally provided on the upper surface of the paper feeding cassette. In particular, there has been no configuration in which a large number of small-sized sheets are stacked on the auxiliary sheet feeding unit. Therefore, for example, as disclosed in Patent Document 1, it takes time and effort to record images on a large number of postcards one by one on the partition plate and move the partition plate back and forth. There was a problem.

  The present invention has been made to solve these problems all at once, and when using different sizes of paper with a relatively simple configuration, switching between two paper feed cassettes while using a common paper feed roller. An object of the present invention is to provide a paper feeding device that can be made compact by forming a paper discharge receiving portion that can easily receive a paper on which an image has been recorded, and an image recording device including the paper feeding device. To do.

  In order to achieve the above object, a paper feeding device according to a first aspect of the present invention includes a housing portion capable of accumulating and storing a large number of recording media, and feeds recording media in the housing portion one by one. A first paper feeding cassette for feeding to the recording unit by the first paper feeding cassette, and a first paper feeding cassette disposed on the housing portion of the first paper feeding cassette so as to be movable back and forth with respect to the paper feeding roller. A second paper feed cassette capable of accumulating and storing a plurality of recording media having a different size from the recording medium in the recording medium, and the second paper feeding cassette includes a second paper feeding cassette on a downstream side in a feeding direction of the recording medium. A mounting portion for depositing the recording medium is formed, and a paper discharge receiving portion is integrally formed adjacent to the above-described mounting portion at an upstream portion in the feeding direction.

  According to a second aspect of the present invention, in the paper feeding device according to the first aspect, a notch portion into which a user's finger can enter is formed at the upstream end portion in the feeding direction of the paper discharge receiving portion. Is.

  According to a third aspect of the present invention, in the paper feeding device according to the first or second aspect, when the second paper feeding cassette is moved backward with respect to the first paper feeding cassette in a direction opposite to the feeding direction, The upstream end of the second paper feed cassette in the feeding direction is formed so as to be substantially the same as or upstream of the upstream end of the first paper feeding cassette in the feeding direction. .

  According to a fourth aspect of the present invention, in the paper feeding device according to any one of the first to third aspects, the mounting portion and the paper discharge receiving portion are formed in a flat plate shape.

  According to a fifth aspect of the present invention, in the paper feeding device according to any one of the first to fourth aspects, the left and right side plates extending in parallel with the feeding direction of the recording medium in the first paper feeding cassette are arranged on the left and right side plates. A long guide hole is provided in the feeding direction, and downstream portions in the feeding direction on the left and right sides of the second sheet feeding cassette are connected to the guide hole so as to be movable forward and backward and rotatable.

  According to a sixth aspect of the present invention, in the paper feeding device according to any one of the first to fifth aspects, the storage portion in the first paper feeding cassette and the placement portion in the second paper feeding cassette are each provided with a stacking storage. Guide means for guiding a side edge parallel to the feeding direction of the recording medium to be recorded is provided so as to be movable in a direction crossing the feeding direction.

  An image recording apparatus according to a seventh aspect of the present invention includes, in the apparatus main body, a recording unit that records an image on a recording medium, and a paper feed conveyance path that feeds the recording medium to the image recording unit, The first paper feed cassette and the second paper feed cassette in the paper feeding device according to any one of claims 1 to 6 are respectively moved forward and backward with respect to the device main body at a lower portion of the apparatus main body and below the recording unit. It is provided to be movable.

  According to an eighth aspect of the present invention, in the image recording apparatus according to the seventh aspect, a width dimension of a recording medium fed from the first paper feed cassette and the second paper feed cassette to the recording unit is detected. And a cassette sensor for detecting whether or not the second paper feed cassette is set at the paper feed position are provided in the parts on the apparatus body side, and the fed recording medium is not intended. It is configured to prohibit image recording due to size differences.

  According to the first aspect of the present invention, the first paper feed cassette in which a large number of recording media of one size are stacked and the second paper feed cassette in which a large number of recording media of a small size are stacked are arranged in front and rear. Since the second paper feeding cassette is merely arranged so as to be movable, the recording medium can be reloaded and removed, and the second paper feeding can be performed only by switching the second paper feeding cassette to the paper feeding position or to the non-paper feeding position. There is an effect that it is possible to easily switch the feeding operation of the two types of recording media using a common feeding roller without performing a troublesome operation such as removing the paper cassette. The second paper feed cassette is provided with a placement portion for depositing the recording medium in a downstream portion of the recording medium in the feeding direction, and adjacent to the placement portion, the upstream portion in the feeding direction. Since the paper discharge receiving portion is integrally formed, there is no need to separately provide a paper discharge receiving portion, and the structure is simple and compact.

  Furthermore, when the second paper feed cassette is moved in the feeding direction, which is the operating position, by setting the length to be necessary for depositing small-size paper, the discharged paper can be easily taken out. In addition, when the second paper feed cassette is moved in the direction opposite to the feeding direction, which is the non-operation position, the length of the paper discharged from the first paper feed cassette is set to be long enough to accumulate the paper. Can be aligned. That is, by integrating, it is possible to configure a paper discharge stacking unit that matches the paper discharge paper, and the user does not need to match the paper discharge tray to the paper discharge paper.

  According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, the upstream end portion in the feeding direction of the paper discharge receiving portion has a notch portion into which a user's finger can enter. Since it is formed, it is possible to directly pick up the recorded recording medium deposited on the paper discharge receiving portion, and it is very easy to take out.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the second sheet feeding cassette is moved backward with respect to the first sheet feeding cassette in the direction opposite to the feeding direction. The upstream end of the second paper feed cassette in the feeding direction is substantially the same as the upstream end of the first paper feed cassette in the feeding direction or located upstream. Therefore, with the second paper feed cassette placed on the upper surface of the first paper feed cassette, the second paper feed cassette is largely retracted, and the recording medium is supplied onto the second paper feed cassette. There is an effect that it can be easily performed.

  According to the fourth aspect of the present invention, since the mounting portion and the paper discharge receiving portion are formed in a flat plate shape, the mounting portion and the paper discharge receiving portion are in a combined state. The height dimension can be lowered, and the effect that the paper feeder can be made compact is achieved.

  According to the fifth aspect of the present invention, the left and right side plates extending in parallel with the feeding direction of the recording medium in the first paper feeding cassette are provided with long guide holes in the feeding direction, and the second paper feeding. In addition to the effect of the invention according to any one of claims 1 to 4, since the downstream portions in the feeding direction on both the left and right sides of the cassette are connected to the guide hole so as to be movable back and forth and turnable. Thus, when the second paper feed cassette is not detached from the first paper feed cassette and is inserted into the apparatus main body again, it is easy. In addition, since the second paper feed cassette can be rotated, it is possible to easily expand the vertical space with the first paper feed cassette without shifting, and it is possible to easily replenish the recording medium.

  According to the sixth aspect of the present invention, the guide means for guiding the side edges parallel to the feeding direction of the recording media stacked and accommodated in the two paper feeding cassettes moves in a direction crossing the feeding direction. Since it is provided in such a manner, the positioning and the deposition posture of the recording medium deposited on each of the first sheet feeding cassette and the second sheet feeding cassette are not disturbed.

  An image recording apparatus according to a seventh aspect of the present invention includes, in the apparatus main body, a recording unit that records an image on a recording medium, and a paper feed conveyance path that feeds the recording medium to the image recording unit, The first paper feed cassette and the second paper feed cassette in the paper feed device according to any one of claims 1 to 6 can be moved forward and backward relative to the device main body at a lower portion of the apparatus main body and below the recording unit. Since it is provided, it is possible to easily replenish the recording medium for each paper feed cassette.

  According to the image recording apparatus of the invention described in claim 8, there is provided a media sensor for detecting a width dimension of a recording medium fed from the first paper feed cassette and the second paper feed cassette to the recording unit; A cassette sensor for detecting whether or not the second paper feed cassette is set at the paper feed position is provided as a component on the apparatus main body side, and image recording due to an unintended size difference of the fed recording medium In this way, it is possible to eliminate the erroneous operation of image recording on a recording medium of a type (size) that is not intended by the user and to set the wrong paper cassette at the paper feed position. Can be discriminated in advance, and there is an effect that wasteful paper feeding time and wasteful use of the recording medium can be eliminated.

  Next, the best mode for embodying the present invention will be described. 1 is a perspective view of an image recording apparatus provided with an ink jet recording head according to the present invention, FIG. 2 is a side sectional view, FIG. 3 is a perspective view of the image recording apparatus in a state where the image reading apparatus is removed, and FIG. FIG. 5 is a perspective view of a state in which the second paper feed cassette of the first embodiment is set at the paper feed position on the first paper feed cassette, and FIG. 5 is a diagram in which the second paper feed cassette of the first embodiment is retracted to the non-paper feed position. 6A is a cross-sectional view taken along the line VIa-VIa in FIG. 4, FIG. 6B is a cross-sectional view taken along the line VIb-VIb in FIG. 5, and FIG. FIG. 7B is a left side view of the second sheet feeding cassette in the operating position in a lifted state, FIG. 8A is a left side view of FIG. 5, and FIG. FIG. 9A is a left side view of the operating position where the rear portion of the second paper feed cassette is lifted, and FIG. 9A is a plan view showing the usage state of the rear corner type paper guide in the second paper feed cassette. FIG. 9B is a plan view showing another use state, FIG. 10A is a plan view showing one use state of the rear end guide and one movable side guide, and FIG. 10B is the other view. FIG. 11 is a bottom view of the carriage for showing the sensor means, FIG. 12 is a perspective view showing the main inclined separation plate of the first paper feed cassette, and FIG. 13 is XIII in FIG. 9 (a). 14 is an enlarged cross-sectional view taken along line XIII, FIG. 14 is a perspective view of a state in which the second paper feed cassette having the inclined separation plate of the second embodiment is set at the paper feed position, and FIG. 15 is a second feed having the inclined separation plate. FIG. 16A is a cross-sectional view taken along line XVIa-XVIa in FIG. 14 and FIG. 16B is a cross-sectional view taken along line XVIb-XVIb in FIG. 13. FIGS. 17A and 17B show a state in which the loading type second paper feeding cassette of the third embodiment is set at the paper feeding position on the first paper feeding cassette. FIG. 18 is a perspective view of the third embodiment with the second sheet cassette retracted to the non-sheet feeding position, FIG. 19A is a cross-sectional view taken along line XIXa-XIXa in FIG. (B) is the XIXb-XIXb arrow directional cross-sectional view of FIG.

  An image recording apparatus 1 according to the present embodiment is an application of the present invention to a multi-function device (MFD) having a printer function, a copy function, a scanner function, and a facsimile function. As shown, the bottom of the housing 2 made of a synthetic resin injection molded product as a synthetic resin recording device main body in the image recording apparatus 1 can be inserted from an opening 2a on the front side (left side in FIG. 2). A first paper feed cassette 3 is arranged. On the upper surface of the first paper feed cassette 3, a second paper feed cassette 30, which will be described in detail later, is connected or placed so as to be movable back and forth. In the following description, the side where the opening 2a exists is referred to as the front, front, or front end of the image recording apparatus 1, and the side farthest from the opening 2a is referred to as the rear, rear, or rear end.

  An image reading device 12 for reading a document in a copy function or a facsimile function is disposed on the housing 2. The image reading device 12 is configured to be vertically openable and closable with respect to one side end of the housing 2 via a pivot portion (not shown). Further, the rear end of the document cover body 13 covering the upper surface of the image reading device 12 is an image. A rear end of the reader 12 is mounted so as to be pivotable up and down about a pivot 12a.

  On the upper side of the housing 2, an operation panel unit 14 including various operation buttons and a liquid crystal display unit is provided in front of the image reading device 12. On the upper surface of the image reading device 12, there is provided a placement glass plate 16 on which the document cover body 13 can be opened and a document can be placed, and a contact-type image sensor for document reading is provided on the lower side. (CIS: Contact Image Sensor) 17 is provided so as to be able to reciprocate along a guide shaft 17a extending in a direction orthogonal to the paper surface of FIG. 2 (main scanning direction, Y-axis direction in FIGS. 1, 2 and 3). Yes.

  Below the image reading device 12 and the operation panel unit 14, the recording unit 7, the paper discharge unit 10, and the ink storage unit 15 provided on one side of the paper discharge unit 10 are located within the planar projection area. Are arranged to be.

  As shown in FIG. 2, the recording unit 7 is supported by a box-shaped main frame 21 having an open upper surface and a pair of left and right side plates, and extends in the Y-axis direction (main scanning direction). It is formed between the first and second guide members 22 and 23 (see FIG. 3). The carriage 5 on which the recording head 4 is mounted in the recording unit 7 is slidably supported (mounted) across the first guide member 22 on the upstream side and the second guide member 23 on the downstream side in the paper transport direction. Can be moved back and forth.

  In order to reciprocate the carriage 5, timing is arranged on the upper surface of the second guide member 23 arranged on the downstream side in the paper conveyance direction (arrow A direction) so as to extend in the main scanning direction (Y-axis direction). A belt 24 is wound around a pulley, and a CR (cage) motor 25 (shown in FIG. 3) that drives the timing belt 24 is fixed to the lower surface of the second guide member 23. The CR motor 25 is a DC motor in the embodiment, but may be another motor such as a stepping motor. The second guide member 23 includes an encoder strip 47 that is arranged so as to extend along the main scanning direction and detects the position of the carriage 5 in the Y-axis direction (main scanning direction). The strip-shaped encoder strip 47 is arranged such that the inspection surface (the surface on which slits are arranged at regular intervals in the Y-axis direction) is along the vertical direction.

  A flat platen 26 extending in the Y-axis direction so as to face the lower surface of the recording head 4 in the carriage 5 is fixed between the guide members 22 and 23 and above the bottom plate 21 b of the main frame 21. Yes.

  The space between the lower surface of the second guide member 23 on the downstream side in the paper transport direction and the opening 2a (also used as a paper discharge port) at the front end of the housing 2 is almost the same height as the bottom plate 21b of the main frame 21. A synthetic resin partition plate 29 is formed integrally with the housing 2 so as to cover the upper portion of the paper discharge unit 10 (see FIGS. 2 and 3).

  The ink storage unit 15 is opened upward of the housing 2, and the ink storage unit 15 has a small area in plan view that accommodates four colors of ink for full-color recording and has a height dimension. Ink cartridges 19 having a substantially rectangular box shape (reference numerals 19a to 19d are assigned to ink cartridges for individual colors, that is, black (BK), cyan (C), magenta (M), and yellow (Y)). 3) can be accommodated in a line along the X-axis direction, and is configured to be detachable from above.

  Ink is supplied from each ink cartridge (indicated individually by reference numerals 19a to 19d) to the ink jet recording head 4 via a plurality (four in the embodiment) of ink supply pipes (ink tubes) 20. It is configured. In addition, when using more ink colors than four colors (six colors to eight colors, etc.), an ink cartridge corresponding to the number of ink colors may be configured to be accommodated in the ink storage unit 15, The number of ink supply tubes 20 may be increased according to the number of ink cartridges.

  As shown in FIG. 3, the root portions of the plurality (four in the embodiment) of the ink supply pipes 20 are bundled at one end portion 15 a of the ink storage portion 15, and one side thereof is formed on the upper surface of the partition plate 29. It extends from the end (left end in FIG. 3) in the direction of the other end (right end in FIG. 3) along the Y-axis direction. At this time, the base portions of all the ink supply pipes 20 are arranged in a horizontal row along the upper surface of the substantially horizontal partition plate 29. At least a part of the ink supply pipe 20 (such as an intermediate part) is supported on the upper surface of the partition plate 29.

  Next, all the ink supply pipes 20 are twisted so that the middle part thereof is along one vertical surface (substantially vertical surface) of the horizontally long vertical partition plate 32 in the partition plate 29, and one of the vertical partition plates 32 is twisted. The middle part of all the ink supply pipes 20 is arranged in a vertical line and fixed (holding or sandwiching) between the vertical plate-like fixed bodies 33 made of synthetic resin and fixed to the vertical surface with screws or the like. ) A portion where all the ink supply pipes 20 are fixed (embraced) by the fixed body 33 and one vertical surface of the vertical partition plate 32 becomes an intermediate fixing portion.

  In the recording unit 7, an ink receiving portion is disposed on one end side and a maintenance unit is disposed on the other end side outside the width of the conveyed paper P (the short side of the paper P) (respectively illustrated). Not shown). Accordingly, the recording head 4 periodically discharges ink to prevent nozzle clogging during a recording operation at a flushing position provided opposite to the ink receiving portion, and receives ink at the ink receiving portion. In the maintenance unit portion, the carriage 5 is in a standby position, and a cap portion (not shown) in the maintenance unit covers the nozzle surface of the recording head 4 from below to selectively suck ink for each color, 4 performs a recovery process for removing bubbles in a buffer tank (not shown). When the carriage 5 moves laterally closer to the maintenance unit portion, cleaning is performed by wiping the nozzle surface with a cleaner (wiper blade) (not shown).

  In this embodiment, a flexible flat cable 40 for transmitting a command signal for selectively ejecting ink droplets from the nozzles of the recording head 4 mounted on the carriage 5 from a control unit (not shown) provided on the housing 2 side is In a region (movable region, non-binding or non-constrained region) through which the ink supply tube 20 passes when the ink cartridge 5 reciprocates in the Y-axis direction (main scanning direction), it is substantially parallel to the direction in which the ink supply tube 20 extends. Is arranged (see FIG. 3).

  The convex curve directions of the midway curve portion of the ink supply tube 20 and the midway curve portion of the flexible flat cable 40 are set to be opposite to the reciprocating direction of the carriage 5. With this configuration, the ink supply tube 20 and the flexible flat cable 40 can be arranged at substantially the same height (substantially in the same horizontal plane) in the vertical direction, and as a result, the entire image recording apparatus 1 can be thinned.

  A registration roller (conveyance roller) pair 27 for sending the paper P to the lower surface of the recording head 4 is disposed on the upstream side of the platen 26, and a recorded paper is provided on the downstream side of the platen 26. A paper discharge roller 28 for conveying P to the paper discharge unit 10 is disposed (see FIG. 2).

  Next, the configuration of the paper feeding device will be described in detail. In the present embodiment, a storage unit 3b capable of accumulating and storing a large number of sheets P is provided, and a first supply for feeding the sheets P in the storage unit 3b one by one to the recording unit 7 by the sheet feeding unit 6 is performed. On the paper cassette 3 and the accommodating portion 3b of the first paper feed cassette 3, the paper feed means 6 is disposed so as to be able to advance and retreat, and is different in size (small size) from the paper P in the first paper feed cassette 3. And a second paper feed cassette 30 capable of accumulating and storing a plurality of sheets P1 of postcards or photographs), and feeding the second paper feed cassette 30 to the first paper feed cassette 3 When the sheet is retracted in the direction opposite to the direction (arrow A direction), the upstream end in the sheet feeding direction of the second sheet cassette 30 is the upstream end in the sheet feeding direction of the first sheet cassette 3. It is formed so as to be located on the rear side of the part.

  Here, as shown in FIGS. 2, 4 and 5, the sheet feeding means 6 has a synthetic resin drive shaft 6d formed in a side plate and a pair of shaft support plates (both not shown) in the main frame 21, respectively. The drive shaft 6 d is rotatably supported in a shaft hole provided, and is inserted so that the tip of the drive shaft 6 d protrudes laterally at the base of the paper feed arm 6 a in the paper feed means 6. The paper feed roller 6b is rotated in a certain direction (counterclockwise in FIG. 2) via a gear transmission mechanism 6c provided in the paper feed arm 6a by the rotational drive of the drive shaft 6d. Further, the paper feeding roller 6b is always biased downward by a biasing means (not shown) (for example, a torsion spring).

  The first paper feed cassette 3 is a paper P that has been cut into a large size such as an A4 size, letter size, legal size, or the like as a recording medium, and its short side is in the Y-axis direction (direction perpendicular to the paper surface in FIG. A large number of sheets are stacked (stacked) so as to extend in the main scanning direction). In the embodiment, the maximum accumulation amount of the paper P in the storage portion 3b of the first paper feed cassette 3 is about 100 sheets of plain paper, and the accumulation height (H1) is about 10 mm. In addition, an auxiliary support member 3a for supporting the rear end portion of the long sheet P of the legal size or the like is provided in the recessed portion 3d of the rear end portion (corresponding to the front side of the housing 2) of the first paper feed cassette 3. It is mounted so as to be movable in the paper transport direction (sub-scanning direction, X-axis direction) (see FIG. 1). In the vicinity of the rear end of the recessed portion 3d and the auxiliary support member 3a, grips 3e and 3f are formed in a trapezoidal hole shape so that the fingers can be easily hooked so that the first paper feed cassette 3 can be easily inserted into and removed from the opening 2a of the housing 2. (See FIGS. 4 to 9B).

  A main inclined separation plate 8 for separating paper is disposed at the tip of the first paper feed cassette 3 (on the right side in FIG. 2, the most downstream end in the feeding direction). Then, a paper feed roller 6b provided at the lower end of the paper feed arm 6a and an elastic separation pad 8a as a separating means provided on the inner surface (front surface) side of the central portion in the width direction (Y direction) of the inclined separation plate 8. (In the embodiment, it is made of a metal leaf spring), the paper P, which is a recording medium deposited in the first paper feed cassette 3, is separated and conveyed one by one. The separated paper P is fed to a recording unit 7 provided above (higher position) than the first paper feed cassette 3 via a conveyance path body 9 for a U-turn path (paper feed conveyance path) that faces upward. . Then, the paper P recorded by the recording unit 7 is discharged to the paper discharge unit 10 communicating with the opening 2a with the recording surface facing upward.

  The surface of the main inclined separating plate 8 has a sawtooth shape as a separating means located on the center side in the width direction of the paper P in the direction (Y direction, width direction of the paper P) perpendicular to the feeding direction of the paper P. A convex portion that approaches the leading edge on the center side in the width direction of the paper P at a portion close to the elastic separation pad 8a and moves away from the leading edge of the paper P as it goes to both ends in the width direction of the paper P. It is formed on a curved surface (see FIG. 4, FIG. 9 (a) and FIG. 9 (b)). As described above, since the surface of the main inclined separation plate 8 is a convex curved surface, the both ends of the fed paper P in the width direction come into contact with the surface of the main inclined separation plate 8 before the paper P is in contact. The leading edge on the center side in the width direction can reliably come into sliding contact with the elastic separation pad 8a to receive the separation action of the paper P. In addition, on the left and right sides of the elastic separation pad 8a, freely rotating rollers 28 are attached in the vicinity of the upper end of the main inclined separation plate 8 to smoothly guide the paper P in the direction of the conveyance path body 9 (FIGS. 4 and 4). 9 (a) and FIG. 9 (b)). The main inclined separation plate 8 is formed as a separate body so that it can be detachably attached to the tip of the first paper feed cassette 3.

  A pair of left and right side guide bodies 34a and 34b are provided in the accommodating portion 3b of the first paper feed cassette 3 as guide means for guiding and positioning side edges parallel to the feeding direction of the paper P. It is provided so that it can move in a wide and narrow direction (wide and narrow slide) in a direction orthogonal to the feeding direction. In that case, so-called center alignment is performed so that the center line in the width direction of the first paper feed cassette 3 (direction perpendicular to the feeding direction of the paper P) and the center line coincide with the width direction of the paper P. Although not shown, the rack body connected to the bottom portions of the pair of left and right side guide bodies 34a and 34b is configured to mesh with a gear disposed at the center line position in the width direction of the bottom plate of the first sheet feeding cassette 3. Yes. Note that at least one side guide body 34b has a rack-like shape formed on the surface (upper surface) of the bottom plate of the first paper feed cassette 3 at a position where the pair of side guide bodies 34a and 34b are moved in the width direction. A handle portion 38 is provided (see FIGS. 4 and 5) that can be engaged with and set (held) by the locking portion 37 (see FIGS. 9A and 9B).

  The second paper feed cassette 30 according to the first embodiment includes a bottom plate 30a having a substantially rectangular shape in plan view and a bottom plate 30a as a placement portion on which a plurality of sheets of paper P1 can be stacked at a downstream portion in the paper feeding direction. And a paper discharge receiving portion 30b which is an upstream portion in the feeding direction. On the bottom plate (mounting unit) 30a, a large number of sheets P1 having a size smaller than the size of the sheets P deposited on the first sheet feeding cassette 3 (for example, postcard or photo L plate sheets) may be deposited. it can. Further, not only the size but also a paper of a different type from the paper P generally accumulated and accommodated in the first paper feed cassette 3, that is, a paper P1 of a different type such as an inkjet printer dedicated paper or a photo quality glossy paper. Multiple sheets can be deposited.

  The width dimension W2 of the bottom plate 30a is narrower than the width dimension W1 of the first paper feed cassette 3 and is disposed on the center side in the width direction of the first paper feed cassette 3. Thus, by providing the notch portion so that the bottom plate 30a on the front end side becomes narrow, an operator's finger can be placed on the handle portion 38 of the side guide body 34b without removing the second paper feed cassette 30. Since it reaches easily, the positioning operation of the paper P in the first paper feed cassette 3 in the width direction becomes easy. A paper discharge receiving portion 30b having a wide width (substantially the same width as the width of the first paper feed cassette 30) is integrally formed on the rear side of the bottom plate 30a, and a rear end of the paper discharge receiving portion 30b. The paper sheet P (P1) is formed with a rearward open notch 39 (see FIGS. 4 to 9B) so that the end of the discharged paper P (P1) can be easily grasped by hand.

  It should be noted that the recorded paper P (P1) discharged from the recording unit 7 is placed on the bottom 30a by connecting the bottom plate 30a via the step so that the height of the paper discharge receiving unit 30b is higher. It becomes easy to pass over the paper P (P1) before recording to be deposited and reach the paper discharge receiving portion 30b.

  The second paper feed cassette 30 is connected so as to be able to advance and retreat along the paper feed direction of the paper P in the first paper feed cassette 3, and the front end side of the second paper feed cassette 30 (upstream side in the feed direction). ) Can be turned upward. Specifically, as shown in FIGS. 4 to 8, the left and right side plates 3c extending in parallel with the feeding direction of the paper P in the first paper feeding cassette 3 are provided with guide holes 35 that are long in the feeding direction. Two round shafts 36 projecting outward from the downstream side portions (for example, the bottom plate 30a) on the left and right sides of the two sheet feeding cassettes 30 are fitted so as to be movable back and forth with respect to the guide holes 35 and turnable. I put it. It should be noted that the diameter of the leading end portion 35a of the guide hole 35 (downstream side in the paper P1 feeding direction) is slightly larger and is inclined upward so as to be integrated in the width direction of the second paper feed cassette 30. The protruded round shaft 36 is inclined with respect to the Y-axis direction so as to be easily inserted into the guide hole 35.

  The second paper feed cassette 30 has a pair of locking pieces 31 such as an upward hook projecting forward at the front end of a bottom plate (mounting portion) 30a on the front end side (downstream in the paper P1 feeding direction). (See FIG. 5, FIG. 6 (b) and FIG. 9 (a)). When the second sheet feeding cassette 30 is pushed to the sheet feeding position, the locking piece 31 has a pair of positioning holes 8b formed in the main inclined separation plate 8 in the first sheet feeding cassette 3 (FIG. 9A). 9 (b), FIG. 10 (a), FIG. 12 and FIG. 13) to prevent the second paper feed cassette 30 from shifting from side to side and up and down. The lower surface recess 31a of the locking piece 31 is locked to the lower edge of the positioning hole 8b so that the pushed-in state can be maintained (see FIG. 13). The set of the locking piece 31 and the positioning hole 8b is provided at a plurality of locations at appropriate intervals in the longitudinal direction of the main inclined separation plate 8, that is, the width direction of the paper P1, and sandwiching the placement location of the elastic separation pad 8a. Since it is provided on both sides, in a state where the second paper feed cassette 30 is set at the paper feed position with respect to the first paper feed cassette 3, the second paper feed cassette 30 is displaced up and down or the paper P1 It is possible to prevent instability of the set position, such as displacement in the width direction or tilting of one side of the second paper feed cassette 30 up and down. Accordingly, it is possible to secure a posture in which the second paper feed cassette 30 is held in the vertical direction at the paper feed position and in parallel with the paper feed direction of the paper P1, and the separation and feeding action of the paper P1 can be surely and stabilized. There is an effect.

  The left and right side plates 30c of the bottom plate 30a in the second paper feed cassette 30 are integrally formed so as to extend along the feeding direction of the paper P1. Then, guide means for positioning and positioning parallel to the feeding direction of the paper P1 is provided in the middle of the wide surface of the bottom plate 30a. The first embodiment includes a rear corner contact type skew guide body 41 as shown in FIGS. 4 to 9B and a fixed position side plate 30c serving as one fixed guide side plate. The skew guide body 41 is parallel to the rear contact plate 41a and the side plate 30c, which can contact the rear edge of the paper P1 deposited on the bottom plate 30a by contacting the side edge of one side plate 30c. The skew guide body 41 is mounted so as to be movable along a guide groove 42 formed in an inclined shape on the bottom plate 30a.

  In the embodiment shown in FIG. 9A, when the paper P1 is L size, the rear edge of the paper P1 contacts the rear contact plate 41a in the skew guide body 41 and simultaneously the side contact plate 41b The inclination angle of the guide groove 42 is set so that the side edge of the paper P1 contacts. Therefore, in the case of a postcard in which the ratio of the long side to the short side of the paper P1 is different from the L size, for example, as shown in FIG. 9B, either the side contact plate 41b or the rear contact plate 41a is used. The side edge or the rear edge of the paper P1 comes into contact with only one side. The inclination angle of the guide groove 42 is set to be different from those in FIGS. 9A and 9B, and when the paper P1 is a postcard, the rear contact plate 41a in the skew guide body 41 is placed on the rear contact plate 41a. It may be designed so that the side edge of the sheet P1 contacts the side contact plate 41b at the same time as the edge contacts. In FIGS. 9A and 9B, the side guide bodies 34a and 34b in the first paper feed cassette 3 are not shown.

  Further, in a state where the auxiliary support member 3a in the first paper feed cassette 3 is housed in the housing portion 3b and the second paper feed cassette 30 is pushed to the tip of the first paper feed cassette 3, the first paper feed cassette 3 The lengths of the third and second paper feed cassettes 30 in the X-axis direction are substantially equal to the lengths of the image reading device 12 and the operation panel unit 14 in the X-axis direction. Accordingly, since the image recording apparatus 1 has a substantially rectangular parallelepiped shape in plan view, the packaging is facilitated even when packaging as a product, and the packaging box can be downsized.

  When the first paper feed cassette 3 and the second paper feed cassette 30 are inserted into and removed from the bottom of the housing 2, the second paper feed cassette 30 is pushed into the front end side of the first paper feed cassette 3. Insert as one. In that case, a configuration in which the sheet feeding arm 6a automatically moves up and down will be described. The substantially flat cam follower member 43 that is parallel to the drive shaft 6d and integrally protrudes from the synthetic resin paper feed arm 6a is formed on the upper surface of the side plate 30c in the second paper feed cassette 30. It extends to the upper part of the cam portion 44 having a height difference in the direction (see FIGS. 4 and 5).

  According to the above configuration, the first paper feed cassette 3 and the second paper feed cassette 30 are integrally inserted through the opening 2 a on the front surface of the housing 2, and the lower surface of the cam follower member 43 is on the start end side (the bank member). , The cam follower member 43 is pushed up in accordance with the forward movement of the second paper feed cassette 30, and integrally with this, the paper feed arm 6a and then the paper feed roller 6b. Is rotated upward, and the paper feed roller 6b and the paper feed arm 6a pass over the main inclined separation plate 8. In a state where the paper feed arm 6 a and the paper feed roller 6 b are raised, these members are accommodated in the space in the main frame 21 through the opening 21 c provided in the bottom plate 21 b of the main frame 21. At that time, the flat cam follower member 43 is also in contact with or close to the lower surface of the bottom plate 21b. Accordingly, it is possible to ensure the vertical rotation operation of the paper feed arm 6a and the paper feed roller 6b without increasing the height of the vertical space between the bottom plate 21b of the main frame 21 and the second paper feed cassette 30. In other words, the height from the first paper feed cassette 3 to the bottom plate 21b of the main frame 21 can be reduced, and a compact one in which the overall height of the image recording apparatus 1 is reduced can be provided.

  When the cam follower member 43 is positioned at the descending portion beyond the uppermost position of the cam portion 44, the sheet feeding arm 6a and the sheet feeding roller 6b, which are biased downward accordingly, also rotate downward. The paper feed roller 6b can come into contact with the uppermost layer of the paper P1 accumulated on the bottom plate 30a of the second paper feed cassette 30 (see FIG. 9A).

  The position in which the first paper feed cassette 3 is moved forward to the housing 2 (set state), the second paper feed cassette 30 is moved backward, and the bottom plate 30a is retracted from the paper feed roller 6b (non-paper feed). In the position), the paper feed roller 6b can be brought into contact with the bottom of the first paper feed cassette 3 and can feed paper (see FIG. 9B).

  In this way, the cam follower member 43 is provided in the paper feed means 6, and the cam follower member is provided in the second paper feed cassette 30 in accordance with the forward and backward movement of the second paper feed cassette 30 with respect to the inside of the housing 2 (main body case). 43 is provided with a cam portion 44 for at least temporarily moving the sheet feeding means 6 up and down, so that the first sheet feeding cassette 3 and the second sheet feeding cassette 30 can be integrated and removed. Accordingly, the sheet feeding means 6 can be raised and lowered automatically, and the operation becomes simple.

  In a state where a large number of sheets P are accumulated in the first sheet cassette 3, a large number of small-sized sheets P 1 are accumulated on the bottom plate 30 a of the second sheet cassette 30. If the paper feeding roller 6b is pushed to the position close to the front end of the paper feeding cassette 3 (paper feeding position), the uppermost surface of the paper P1 on the second paper feeding cassette 30 can be pressed in that state, so that the image recording operation is performed as it is. Can be executed. On the contrary, in a state where a large number of small-sized papers P1 are accumulated on the bottom plate 30a of the second paper feed cassette 30, the second paper feed cassette 30 is maintained until the round shaft 36 is positioned at the rear end of the guide hole 35. The second paper feed cassette 30 is not detached from the first paper feed cassette 3 even if the first paper feed cassette 3 is moved backward. Further, the sheet P1 deposited on the bottom plate 30a is regulated by the inclined guide body 41 and the deposition posture is not disturbed, and the sheet P on the first sheet cassette 3 is immediately fed by the sheet feeding roller 6b. The image recording work can be executed. The bottom plate 30a in the second paper feed cassette 30 has a width portion located within a range including the location of the elastic separation pad 8a of the main inclined separation plate 8 in the first paper feed cassette 3, so that one paper feed roller 6b and 1 There is an effect that the two inclined separation plates 8 can be shared by the separation and feeding operation of the paper P accumulated in the first paper feed cassette 3 and the second paper feed cassette 30.

  When the paper P is replenished to the first paper feed roller 3, the second paper feed cassette 30 is pushed into the first paper feed cassette 3 (paper feed position) as shown in FIG. As shown in FIG. 8B, the rear end of the second paper feed cassette 30 is lifted, or the second paper feed cassette 30 is pulled out (retracted) from the first paper feed cassette 3 as shown in FIG. ) In the raised state (non-feeding position), as shown in FIG. 8B, the round shaft 36 fitted in the guide hole 35 in any case of lifting the rear end portion of the second paper feeding cassette 30. The second paper feed cassette 30 can be rotated upward about the center, and the vertical space at the rear end of the first paper feed cassette 3 is widened, and the replenishment operation of the paper P to the first paper feed cassette 3 is extremely easy. it can.

  Further, the accommodating portion 3b of the first sheet feeding cassette 3 is inclined in a direction approaching the main inclined separation plate 8, that is, in the sheet feeding direction, and the rear end of the accommodating portion 3b is an opening of the housing 2. Since the sheet feeding means 6 is open toward the outside of the section 2a and the sheet feeding arm 6a can be tilted, the sheets P stacked and accommodated in the accommodation section 3b of the first sheet cassette 3 are Since it does not shift to the rear end side of the first paper feed cassette 3, a guide member that contacts the rear end of the paper P becomes unnecessary. Accordingly, it is possible to replenish the paper P from the rear end side of the first paper feed cassette 3 without lifting the rear end of the second paper feed cassette 30.

  Further, since the sheet receiving portion 30b is formed following the bottom plate (mounting portion) 30a of the second sheet feeding cassette 30, the second sheet feeding cassette 30 is fed as shown in FIG. When image recording is executed in the state of being set at the position, the small-size paper P1 on the second paper feed cassette 30 is conveyed to the recording unit 7, and the paper P1 in the image-recorded state is discharged on the rear side of the bottom plate 30a. The paper can be received by the paper receiver, and the pre-recorded paper P1 and the recorded paper P1 are not mixed. Further, when the large-size paper P is deposited on the first paper feed cassette 3 and image recording is performed, as shown in FIG. 6B, the rear portion of the second paper feed cassette 3 in the retracted non-paper feed position. There is an effect that the recorded paper P can be reliably received without protruding from the (paper discharge receiving portion 30b). In these cases, since a rearward open cutout 39 is formed at the rear end of the paper discharge receiving portion 30b, an operator's finger is inserted into the cutout 39 and the recorded paper P1 is handed. It becomes easier to grab and take out.

  FIGS. 10A and 10B are modified examples of the guide means for guiding and positioning the side edge parallel to the feeding direction of the paper P1 on the bottom plate 30a of the second paper feed cassette 30. FIG. Show. In this modification, one side plate 30c, which is a fixed guide side plate that guides one side edge extending in parallel with the feeding direction of the paper P1 on the second paper feed cassette 30, and the side plate 30c are parallel to each other. And a rear guide body 45b that can be moved back and forth so as to come into contact with the rear edge of the paper P1. The movable guide body 45a and the rear guide body 45b are mounted on the bottom plate 30a of the second paper feed cassette 30 so as to be linearly movable. According to this configuration, as shown in FIGS. 10A and 10B, even when the ratio and size of the long side and the short side of the paper P1 are different, the installation position of the paper P1 is reliably determined. can do. Further, if the short side of the small size paper P1 faces the location of the elastic separation pad 8a in the first paper feed cassette 3, the separation and feeding of each sheet is ensured by the cooperative action with the paper feed roller 6b. Can be done.

  A media sensor 49 for detecting the width dimension of the paper P (P1) fed from the first paper feed cassette 3 and the second paper feed cassette 30 to the recording unit 7, and the second paper feed cassette 30 are located at the paper feed position. And a cassette sensor 50 for detecting whether or not it is set on the lower surface of the carriage 5 as a component on the apparatus main body side (see FIG. 11). Each of the media sensor 49 and the cassette sensor 50 employs a non-contact type optical sensor such as an infrared sensor. A detection window hole (not shown) is provided in the middle of the platen 26 in the Y-axis direction so that the bottom plate 30a can be detected by the cassette sensor 50 only when the second paper feed cassette 30 is set at the paper feed position. Drill. The media sensor 49 moves the carriage 5 in the Y-axis direction so that it can detect the width dimension of the leading end of the paper P (P1) that is temporarily stopped from the pair of registration rollers 27 in the feeding direction. The scanning is detected while the operation is being performed. According to this configuration, for example, when the user instructs the type or size of the sheet that the user wants to use and executes image recording, the second sheet is stored in the second sheet cassette 30. If it is determined from the detection value of the cassette sensor 50 that the paper feed cassette 30 has not been set (pushed in) at the paper feed position, the paper feed operation is prohibited and a notification to that effect is given to the user. Then, at the stage where the second paper feed cassette 30 is set at the paper feed position, control for allowing the paper feed operation is executed. Similarly, when the paper of the type or size that the user wants to use is accumulated in the first paper feed cassette 3, the second paper feed cassette 30 on which the paper of an undesired size is accumulated is set at the paper feed position. In addition, the paper feeding operation is prohibited and the user is notified of this fact. Then, at the stage where the second paper feed cassette 30 is set at the paper feed position, control for allowing the paper feed operation is executed.

  Further, the width dimension of the front end portion of the sheet P (P1) that is fed from the first sheet feeding cassette 3 or the second sheet feeding cassette 30 and stopped once in the state of being slightly conveyed from the registration roller pair 27 in the feeding direction. Is detected by the media sensor 49 while the carriage 5 is moved, and the size of the paper P is determined by an electronic control device (not shown). If the paper is different from the type or size of paper that the user wants to use, the image recording on the fed paper P (P1) is prohibited, and the paper P (P1) is left as it is. Is discharged. As a result, there is an effect that the paper P (P1) is not wasted. Note that the media sensor 49 can also detect the set position of the paper P (P1) in the Y-axis direction, as in the conventional publicly known technique.

  The second paper feed cassette 30 of the second embodiment shown in FIGS. 14 to 16 is provided with an auxiliary inclined separation plate 51 at the tip of the bottom plate 30a. This auxiliary inclined separating plate 51 is also provided with an elastic separating pad 51a similar to the main inclined separating plate 8. Further, the front and rear guide holes 35 for connecting the second paper feed cassette 30 through the round shaft 36 so as to be movable back and forth are not only the side plates 3c in the first paper feed cassette 3 of the first embodiment, You may form in the side guide bodies 34a and 34b in the 1st paper feed cassette 3 of 2nd Embodiment (refer FIG. 14, FIG. 15). Other configurations in the second embodiment are the same as those in the first embodiment (see FIGS. 4 to 8), and therefore, the same reference numerals are given and detailed descriptions thereof are omitted. According to the configuration of the second embodiment, when the second paper feed cassette 30 is pushed forward with respect to the first paper feed cassette 3 and set at the paper feed position, the main inclined separation plate 8 of the first paper feed cassette 3 Since the auxiliary inclined separation plate 51 is disposed adjacent to the front surface (see FIGS. 14 and 16A), the paper P1 accumulated in the second paper feed cassette 30 is rotated by the paper feed roller 6b. It is fed and can be separated one by one at the location of the elastic separation pad 51a of the auxiliary inclined separation plate 51.

  Since the front edge of a large number of sheets P1 deposited on the bottom plate 30a is close to the auxiliary inclined separation plate 51, the guide means 41 (45a) for positioning the sheets P1 and maintaining the parallel posture. 45b), the stacking posture of the sheets P1 is not changed even if the second sheet feeding cassette 30 is moved back and forth, so that the first sheet feeding cassette 3 and the second sheet feeding cassette 30 are fed. There is an effect that the paper work can be switched extremely smoothly.

  A second paper feed cassette 30 ′ of the third embodiment shown in FIGS. 17 to 19 is placed on the upper surface of the first paper feed cassette 3 so as to be movable back and forth (slidable back and forth). For this reason, the width dimension of the bottom plate 30a ′, which is the placement portion of the sheet P1 of the second sheet cassette 30 ′, and the sheet receiving portion 30b ′ is set to be the same as the width dimension of the first sheet cassette 3. It is placed on the left and right side plates 3 c of the paper cassette 3. In that case, with the second paper feed cassette 30 ′ placed on the first paper feed cassette 3 and with the second paper feed cassette 30 ′ set at the front and rear positions, Cutout portions 52a and 52b are formed so that the handle portions 38 of the side guide bodies 34a and 34b can be operated (see FIGS. 17 and 18).

  A hole-shaped notch 54 is provided at the rear end of the paper discharge receiving portion 30b ′ of the second paper feed cassette 30 ′ (see FIGS. 17 to 19). The notch 54 can move the second paper feed cassette 30 ′ out of the opening 2 a of the housing 2 so that the user can easily take out the recorded paper P (P 1) stacked on the paper discharge receiving portion 30 b ′. It is the structure which grasps with a finger.

  Further, in the present embodiment, the second paper feed cassette 30 'is simply placed on the upper surface of the first paper feed cassette 3 so as to be slidable back and forth, so that the second paper feed cassette 30' is positioned in the left-right direction (the width direction of the paper P). Easy to shift. In order to prevent this, a plurality of locking pieces 31 ′ are projected forward at the tip of the bottom plate 30 a ′ (see FIG. 17), and the second paper feed cassette 30 ′ is advanced so as to be set at the paper feed position. At this time, it is engaged with a positioning hole (not shown) of the main inclined separation plate 8 in the first paper feed cassette 3. The guide means for guiding the right and left positioning and feeding parallel posture of the paper P1 in the second paper feed cassette 30 'is configured such that the left and right guide bodies 53 can be moved in a wide and narrow manner in parallel.

  In addition, since the other structure in 3rd Embodiment is the same as 1st Embodiment (refer FIGS. 4-8), the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. Also in the third embodiment, in a state where a large number of sheets P of different sizes are accumulated in the first paper feed cassette 3 and the second paper feed cassette 30 ′, the second paper feed cassette 30 ′ is advanced to feed the paper. Or retreating to a non-feeding position and switching to sheet feeding operations of different types (sizes) can be made extremely easily.

1 is a perspective view of an image recording apparatus according to an embodiment of the present invention. 1 is a side sectional view of an image recording apparatus according to an embodiment of the present invention. FIG. 3 is a perspective view of the recording apparatus main body with an upper cover body removed. FIG. 6 is a perspective view of a state in which the second paper feed cassette of the first embodiment is set at a paper feed position on the first paper feed cassette. It is a perspective view of the state where the 2nd paper feed cassette of a 1st embodiment was retracted to the non-paper feed position. (A) is the VIa-VIa arrow directional cross-sectional view of FIG. 4, (b) is VIb-VIb line | wire arrow sectional drawing of FIG. FIG. 5A is a left side view of FIG. 4, and FIG. 5B is a left side view of a state where the rear portion of the second sheet feeding cassette at the operating position is lifted. 5A is a left side view of FIG. 5, and FIG. 5B is a left side view of a state where the rear portion of the second sheet feeding cassette in the non-operation position is lifted. (A) is a top view which shows the use condition of the rear corner type | mold paper guide in a 2nd paper feed cassette, (b) is a top view which shows another use condition. (A) is a top view which shows one use condition of a rear end guide and one movable side guide, (b) is a top view which shows another use condition. It is a bottom view of the carriage for showing a sensor means. It is a perspective view which shows the inclination separation plate of a 1st paper feed cassette. FIG. 10 is an enlarged sectional view taken along line XIII-XIII in FIG. It is a perspective view of the state which set the 2nd paper feed cassette which has an inclination separation board of a 2nd embodiment in the paper feed position. FIG. 6 is a perspective view of a state in which a second paper feed cassette having an inclined separation plate is set back to a non-paper feed position. (A) is XVIa-XVIa arrow directional cross-sectional view of FIG. 14, (b) is XVIb-XVIb arrow directional cross-sectional view of FIG. It is a perspective view of the state which set the loading type 2nd paper feed cassette of a 3rd embodiment to the paper feed position on the 1st paper feed cassette. FIG. 10 is a perspective view of a state in which the second paper feed cassette of the third embodiment is retracted to the non-paper feed position. (A) is the XIXa-XIXa arrow directional cross-sectional view of FIG. 17, (b) is the XIXb-XIXb arrow directional cross-sectional view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Image recording device 2 Recording device main body 3 1st paper feed cassette 3b Bottom plate 4 Recording head 5 Carriage 6 Paper feed means 6a Paper feed arm 6b Paper feed roller 7 Recording part 8 Main inclination separation plate 8a Elastic separation pad 8b Positioning hole 30, 30 '2nd paper feed cassette 30a, 30a' Bottom plate 30b, 30b 'Discharge receiving part 31, 31' Locking piece 34a, 34b Side guide body 35 Guide hole 36 Round shaft 39, 54 Notch 41 Slant guide body 45a Movable side guide body 45b Rear guide body 49 Media sensor 50 Cassette sensor

Claims (8)

A first paper feeding cassette for feeding a recording medium in the housing unit to the recording unit one by one by a paper feed roller; A paper cassette is disposed on the storage portion of the paper cassette so as to be movable back and forth with respect to the paper feed roller, and is capable of accumulating and storing a plurality of recording media having different sizes from the recording media in the first paper feed cassette. Two paper cassettes,
The second paper feed cassette is provided with a placement portion for depositing the recording medium on a downstream side portion of the recording medium in the feeding direction, and adjacent to the placement portion on the upstream side portion in the feeding direction. A paper feeding device in which a paper ejection receiving portion is integrally formed.   The sheet feeding device according to claim 1, wherein a notch portion into which a user's finger can enter is formed at an upstream end portion in the feeding direction of the sheet discharge receiving portion.   When the second sheet cassette is moved backward with respect to the first sheet cassette in the direction opposite to the feeding direction, the upstream end of the second sheet cassette in the feeding direction is the first sheet cassette. 3. The sheet feeding device according to claim 1, wherein the sheet feeding device is formed so as to be substantially the same as or located on the upstream side in the feeding direction.   The sheet feeding device according to claim 1, wherein the placement unit and the paper discharge receiving unit are formed in a flat plate shape.   Long left and right guide holes in the feeding direction are provided in the left and right side plates extending in parallel with the feeding direction of the recording medium in the first sheet feeding cassette, and downstream in the feeding direction on the left and right sides of the second sheet feeding cassette. The sheet feeding device according to any one of claims 1 to 4, wherein the portion is connected to the guide hole so as to be movable back and forth and rotatable.   Guide means for guiding side edges parallel to the feeding direction of the recording medium to be deposited and accommodated in the storage section in the first paper feeding cassette and the placement section in the second paper feeding cassette, respectively. The paper feeding device according to claim 1, wherein the paper feeding device is provided so as to be movable in an intersecting direction.   A recording unit for recording an image on a recording medium and a paper feed conveyance path for feeding the recording medium to the image recording unit are provided in the apparatus main body, and the lower part of the apparatus main body is below the recording unit. An image in which the first paper feeding cassette and the second paper feeding cassette in the paper feeding device according to any one of claims 1 to 6 are provided so as to be movable forward and backward with respect to the apparatus main body. Recording device.   A media sensor for detecting a width dimension of a recording medium fed from the first paper feeding cassette and the second paper feeding cassette to the recording unit; and whether the second paper feeding cassette is set at a paper feeding position. 8. A cassette sensor for detecting whether or not there is provided in a component on the apparatus main body side and configured to prohibit image recording due to an unintended size difference of a fed recording medium. The image recording apparatus described in 1.

Images