CN1712341A - Image recording apparatus - Google Patents
Image recording apparatus Download PDFInfo
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- CN1712341A CN1712341A CN 200510078842 CN200510078842A CN1712341A CN 1712341 A CN1712341 A CN 1712341A CN 200510078842 CN200510078842 CN 200510078842 CN 200510078842 A CN200510078842 A CN 200510078842A CN 1712341 A CN1712341 A CN 1712341A
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- China
- Prior art keywords
- recording medium
- transfer passage
- roller
- paper
- spare
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
- B41J13/103—Sheet holders, retainers, movable guides, or stationary guides for the sheet feeding section
Abstract
An image recording apparatus includes an image recording unit, a conveying path, a feed cassette, a feeding unit, and a separating unit. The feed cassette can accommodate a stack of recording media therein. The feeding unit feeds a recording medium from the stack on the feed cassette to the conveying path. The separating unit separates the recording medium from the stack and cooperates with the feeding unit to convey the separated recording medium upward to the conveying path. The conveying path includes a conveying-path member having a plate portion of a U-shape in a side view. The conveying-path member includes a plurality of rollers provided at a central portion of the conveying-path member in a widthwise direction perpendicular to a conveyance direction of the recording medium.
Description
Technical field
The present invention relates to a kind of structure that U-shaped turns to the channel image recording unit that has, this image recorder connects a ground separation to one of the recording medium (paper that cuts or paper) that approximate horizontal is stacked in the sheet feed tray, thereby a recording medium that separates is presented to the inkjet type record cell that is positioned at above the sheet feed tray.
Background technology
Various traditional image recorders are arranged, as chopping machine or facsimile apparatus etc.For example, a kind of image recorder below JP2002-249248 A (see figure 1) has disclosed.A large amount of paper (recording medium or the paper that cuts) piles up to approximate horizontal and is contained in the sheet feed tray, and sheet feed tray is arranged in the bottom of the main body (shell) of image recorder, can move forward and backward (can extract out).The paper feed roller be held in place inclination separating part on sheet feed tray front end place and the sheet feed tray upper surface near.In this image recorder, after the inclination separating part upwards guides the paper that the paper feed roller presents, paper is wherein placed and is carried directing plate to make it face the periphery of reverse rollers through comprising reverse rollers and carrying the transfer passage of directing plate (transfer passage plate) to be transported to position below the header record.In lateral plan, carry directing plate to have the roughly part of U-shaped.Subsequently, paper is discharged to the front side of the main body of image recorder.
Summary of the invention
But for the reverse rollers in the structure that drives JP2002-249248 A, the power-transmission system that need comprise one group of gear carries out the transmission of power from the CD-ROM drive motor to the reverse rollers.In addition, reverse rollers should have bigger diameter, thereby follows the crooked inner surface of carrying directing plate.Therefore will produce such problem, promptly the become whole height of complexity and imaging device of the structure of image recorder becomes higher.
In addition, also can have problems when connecing a ground separation recording medium at one at the inclination separating plate place at sheet feed tray front end place, be that its separating property can change (instability), specifically, a large amount of recording medium stackers be stacked under the situation in the sheet feed tray and situation about reducing along with the stacks as high of the progress recording medium of image recording task under its separating property can change, or the difference of recording medium rigidity also can cause the variation of its separating property.
The invention provides a kind of image recorder, its uses the simple relatively structure just can be not only reliably but also stably recording medium, or even last recording medium is presented to record cell.
According to an aspect of the present invention, image recorder comprises a main body, an image recording unit, a transfer passage, a feed cassette, a feed unit and a separative element.Image recording unit forms image on recording medium.By transfer passage recording medium is fed to image recording unit.Image recording unit and transfer passage are placed in the main body.Feed cassette is placed on the bottom of main body and is placed on below the image recording unit, thereby can move forward and backward.Can hold the recording medium that piles up in the feed cassette.Feed unit is fed to transfer passage to the recording medium that piles up on the feed cassette.Separative element is placed on an end of feed cassette, thereby separates recording medium from the recording medium that piles up, and with the feed unit cooperation recording medium that separates upwards is transported to transfer passage.Transfer passage comprises transfer passage spare, and transfer passage spare has be the board of U-shaped on the side-looking direction.Transfer passage spare comprises a plurality of rollers, and described a plurality of rollers are located at the central part office of transfer passage spare on the Width vertical with the throughput direction of recording medium in the mode that can freely rotate.
According to this structure, because described a plurality of minor diameter rollers that can freely rotate are arranged on the central part office of transfer passage spare on the recording medium Width, wherein transfer passage spare is U-shaped on the side-looking direction, so compact conformation and can not only steadily but also reliably be transported to record cell to recording medium.
According to an aspect of the present invention, can be with the described a plurality of rollers of arranged at predetermined intervals on the throughput direction of recording medium.The diameter that is positioned at a roller of throughput direction upstream can be equal to or greater than the diameter of another roller that is positioned at the throughput direction downstream.
According to this structure, except aforesaid advantage, can also realize following advantage.The outer surface of these rollers owing to make that the diameter of a roller being positioned at the throughput direction upstream is bigger, and make the diameter of the roller that is positioned at the throughput direction downstream reduce gradually, so can reduce along the surface of transfer passage spare from the height that transfer passage spare stretches out.In addition, the resistance that near the outer surface of roller the time, produces of the forward position that can also reduce the recording medium that upwards shifts from separative element significantly.Like this, can be not only easily but also reposefully recording medium is transported to the downstream of the transfer passage spare that bends to U-shaped, prevent paperboard so effectively.
According to an aspect of the present invention, the diameter of each roller can increase to the core of each roller gradually from the end of each roller.
In addition, according to an aspect of the present invention, can remove the bight of the intersection between the end surfaces of the outer surface of each roller and each roller.
According to this structure, during near the outer surface of each roller, can not go up and produce striped, thereby be difficult to destroy the quality of the institute's document image in record cell on the surface of recording medium (recording surface) at the recording medium of carrying.
According to an aspect of the present invention, transfer passage spare may further include a holding portion, holds the axle of roller and roller in this holding portion, and this holding portion is exposed to roller and axle outside the surface of recording medium process of transfer passage spare simultaneously.Cover piece can removably be placed on this surface of recording medium process of transfer passage spare, thereby exposes at least a portion of each roller and cover the axle of roller.
According to this structure, only need that a lid is installed and just can carry out the work that comprises the placement and the trouble of a plurality of rollers is installed very simply, thereby avoid axle to come off.
According to an aspect of the present invention, at the upstream side of the throughput direction of recording medium, the surface that the recording medium of transfer passage spare slips over can form the curved surface of projection.This protruding curved surface can be outstanding in the central part office of transfer passage spare broad ways, and along with near transfer passage spare on Width the end and withdrawal gradually.
According to this structure, since along two ends of recording medium on Width that the transfer passage that is bent into U-shaped in lateral plan is carried not with transfer passage spare or rib moving contact, so transporting resistance descends, and thus can be not only conveying recording medium steadily but also leggiero.
According to an aspect of the present invention, transfer passage spare may further include a plurality of ribs that stretch out from the surface of recording medium process.These ribs extend on the throughput direction of recording medium, and are arranged in position than roller more lateral with predetermined interval.Each rib has cross-sectional plane on the Width of recording medium, in this cross-sectional plane, each rib is with outward-dipping towards the obtuse angle in the Width outside.
In addition, according to an aspect of the present invention, at the upstream side of the throughput direction of recording medium, the surface that is slipped over by the recording medium that transfer passage spare and rib limited can form the curved surface of projection.This protruding curved surface can be outstanding in the central part office of transfer passage spare broad ways, and along with near transfer passage spare on Width the end and withdrawal gradually.
According to preceding a kind of structure, described a plurality of ribs are arranged in position than roller more lateral with predetermined interval, and these ribs have cross-sectional plane on the Width of recording medium, and in this cross-sectional plane, these ribs become the obtuse angle outward-dipping with Width.Therefore, at the side of recording medium on Width conveying recording medium when being placed on the gently sloping surface of rib.So just can avoid the recording medium bending to advance, thereby also can avoid the generation of paperboard.
According to an aspect of the present invention, separative element can be included in the separation member of the central part office on the Width, and separation member is near the forward position of described many recording mediums, thereby one connects a ground separation recording medium.Separative element may further include the plate of lobed curved surface, and near this protruding curved surface forward position to recording medium separation member is outstanding.The inclination separating plate can along with near recording medium on Width the end and from the withdrawal of the forward position of recording medium.
According to this structure, when the forward position of recording medium on Width during at first near separation member, the separation member that is arranged in the separative element can be carried out the operation that one of recording medium is connect a ground separation reliably, and wherein separation member is positioned at the central part office of separative element on Width.
According to an aspect of the present invention, can form a rib, thereby be enclosed in the gap that forms between the base part of separative element of the base plate of feed cassette and lobed curved surface with the base part of separative element is whole.
According to this structure, when the less recording medium of the amount of piling up was fed to base plate vicinity, the existence of this rib allowed the forward position of recording medium is directed to reliably the upside of separative element, and the forward position of recording medium can not be coupled in this gap.
According to an aspect of the present invention, can place a friction member in the face of feed unit at the base plate place of feed cassette.Can place a upwards leader on base plate, upwards leader is positioned at the downstream of friction member on the throughput direction of recording medium, and between the base part and friction member of separative element.Upwards leader is lower in friction member one side, and uprises gradually towards base part one side.
According to this structure, when the less recording medium of the amount of piling up is fed to base plate vicinity, can be along this leader forward position of leader record medium upwards reliably that makes progress.Can be directed to recording medium the upside of separative element so reliably, and the forward position of recording medium can not be coupled in this gap.
According to an aspect of the present invention, separative element can comprise an inclination plate.On a recording medium receiving surface of transfer passage spare, a upper edge of inclination plate can extend to a position higher than the lower edge of transfer passage part, thereby inclination plate and transfer passage spare are partly overlapping.
According to this structure, even piled up recording medium near maximum, recording medium also can be transferred to the lower end of transfer passage spare reposefully from separative element.
According to an aspect of the present invention, feed cassette can comprise an engaging claw on the lower surface of fore-end.When feed cassette was pushed in the main body of image recorder fully, engaging claw engaged with bonding part in being arranged on main body.Between lower face side of feed cassette base plate and main body, can be provided with cam member.When from main body, extracting feed cassette out, cam member guiding and rising feed cassette, thus help engaging claw and bonding part to unclamp.
According to this structure, when in the main body that feed cassette is pushed image recorder, cam member rising feed cassette.Under this state, in the slight moving contact of the upper surface of engaging claw and bonding part, also engaging claw is pushed.When engaging claw can engage with the bonding part, almost meanwhile also finished pushing of feed cassette.Therefore, feed cassette is almost descending under the horizontal state, thereby can keep the set condition of feed cassette with respect to main body.
When extracting feed cassette out, cam member upgrades suitable distance to the forward position of feed cassette.Therefore, the slight moving contact of upper surface of engaging claw and bonding part at this moment.Therefore, just can help the disengaging of engaging claw and bonding part.In addition, can alleviate resin distortion, wear and tear or bleach since feed cassette advance repeatedly and withdrawal (is connected or breaks away from) is operated, the lower edge of engaging claw and the sharp impacts of bonding part may cause above-mentioned distortion, wear and tear or bleach.In addition, when feed cassette is pushed or extracts out, can also provide the sensation of click to the user.
According to an aspect of the present invention, transfer passage spare can be releasably attached on the main body of image recorder.
Description of drawings
Fig. 1 is the transparent view of image recorder according to an embodiment of the invention, comprising the inkjet type header record;
Fig. 2 is the side view cutaway drawing of image recorder;
The transparent view of Fig. 3 shows the state after the dismounting of the cover piece of the main body enclosing cover of image recorder and image read-out;
Fig. 4 is the transparent view of image recorder, shown in removed image read-out in the state;
Fig. 5 is the amplification side view cutaway drawing along Fig. 3 center line IV-IV;
Fig. 6 is the amplification side view cutaway drawing along Fig. 4 center line VI-VI;
Fig. 7 is the transparent view of sheet feed tray and feed unit;
The transparent view of Fig. 8 only shows sheet feed tray;
Fig. 9 is the planar view of sheet feed tray;
The transparent view of Figure 10 shows as U-shaped and turns to the transfer passage spare of passage to be placed on the state of sheet feed tray front end;
Figure 11 is the amplification view along Fig. 9 center line XI-XI;
Figure 12 is the amplification side view cutaway drawing of interpreter operation;
Figure 13 is the cutaway view along Figure 12 center line XIII-XIII;
The transparent view of Figure 14 shows the inside face (surface) that turns to the transfer passage spare of passage when downside is observed as U-shaped;
The transparent view of Figure 15 shows the outside face of transfer passage spare;
Figure 16 is the amplification side view cutaway drawing along Figure 14 and 15 center line XVI-XVI;
Figure 17 A is the cutaway view along Figure 10 center line XVIIa-XVIIa, and Figure 17 B is the cutaway view along Figure 10 center line XVIIb-XVIIb;
Figure 18 is the cutaway view along Figure 10 center line XVIII-XVIII;
The part lateral plan of Figure 19 shows the state that the inclination separating plate is pulled down from the fore-end of sheet feed tray;
Figure 20 is the cutaway view along Figure 14 center line XX-XX, has wherein saved some parts;
The transparent view of Figure 21 shows the fastener and the cam member at the lower surface place of sheet feed tray;
The transparent view of Figure 22 shows a part of stirrup on the bottom of opening of holding portion of sheet feed tray;
The lateral plan of Figure 23 has explained that sheet feed tray is transformed into the extraction state from engagement state.
The specific embodiment
Embodiments of the invention are described below.
The image recorder 1 of this embodiment is a multi-function device (MFD), and it has printing function, copy function, scan function and facsimile function, and the present invention is applied on this image recorder 1.As illustrated in fig. 1 and 2, the main body of the image recorder 1 that shell 2 is made as synthetic resin, the injection molding thing that it is made by synthetic resin constitutes, and is placing sheet feed tray 3 on the bottom of shell 2.Pass the opening portion 2a that is formed on image recorder 1 front side (left side of Fig. 2) and can insert sheet feed tray 3.
Image read-out 12 is placed on shell 2 tops, is used for reading file in copy function and facsimile function.The diapire 11 of image read-out 12 is stacked in above the cover piece 30 above last cover piece 30, and is very close to each other substantially between diapire 11 and the last cover piece 30.Thereby image read-out 12 can utilize unshowned pivot section to rotate opening and closing up and down around an end of shell 2.In addition, the upper surface of file cover piece 13 overlay image reading devices 12, the rear end of file cover piece 13 is mounted to it can be rotated up and down around pivot 12a with respect to the rear end of image read-out 12.
At the upside of shell 2, the operating panel 14 with various action buttons, Liquid Crystal Display (LCD) etc. is placed on the front of image read-out 12.The upper surface of image read-out 12 is provided with glass board 16, can place file on glass board 16 behind the cover piece 13 that upwards opens file.Be used to read file image analyzer (CIS: the contact-type imageing sensor) 17 be arranged on glass board 16 below, thereby can be along moving back and forth going up the leading axle 44 that extends with displayed map 2,5 direction (main scanning direction, or the Y direction among Fig. 1,3 and 4) vertical with 6 paper surface.
Shown in Fig. 2 to 6, box-like main frame 21 and a pair of left side plate support record cell 7, and record cell 7 is formed between first and second guiding pieces 22 and 23, and these guiding pieces have in the plate shape shape of lateral elongation and in Y direction (main scanning direction) goes up extension.The header record 4 of record cell 7 is installed on the balladeur train 5, support (installation) balladeur train 5 slidably, make balladeur train 5 on second guiding piece 23 in first guiding piece 22 of sheet transport direction upstream side and sheet transport direction downstream, thereby balladeur train 5 can move back and forth between them.
In order to move back and forth balladeur train 5, on the upper surface of second guiding piece 23 that is positioned at sheet transport direction (direction shown in the arrow A) downstream, placed timing belt 24, make timing belt 24 go up and extend at main scanning direction (Y direction).Timing belt 24 is on pulley.CR (balladeur train) motor 25 that is used to drive timing belt 24 is fixed on the lower surface of second guiding piece 23.Motor can be any other motor in this embodiment, as DC motor or stepper motor.Second guiding piece 23 is provided with encoder strip 47, and encoder strip 47 extends on main scanning direction, is used for surveying the position of balladeur train 5 on Y direction (main scanning direction).Place band shape encoder strip 47, make the searching surface (being provided with slit at certain intervals) of encoder strip 47 extend in vertical direction in this upper edge, surface Y direction.
The separator of battery plates of being made by synthetic resin (lower cover) 29 forms with shell 2 integral body, thereby it from the lower surface of the guiding piece 23 in sheet transport direction downstream to the upside (seeing Fig. 2 and 4) that the ejection port 10a at shell 2 front end places, covers paper feeder unit 10, separator of battery plates 29 almost is in identical height and position with the base plate 21b of main frame 21.
In addition, last cover piece 30 is placed on above this separator of battery plates (lower cover) 29, has suitable space between last cover piece 30 and the separator of battery plates 29, makes that going up cover piece 30 covers balladeur train 5 and its upside that moves back and forth passage.In addition, be formed with oblong fenestra 31 (see figure 3)s at the centre portion of last cover piece 30, thereby can see the passage that moves back and forth of balladeur train 5 from the top.Cause occurring in record cell 7 under the situation of paperboard at paper P, the user can be by shell 2 rotating image reading devices 12 to remove paper P by this fenestra 31.
The layout of flexible ink supply pipe 20 is described below, and these flexible ink supply pipes 20 always couple together being contained in each print cartridge 19 in the ink storing unit 15 and the header record 4 in the record cell 7.
Ink storing unit 15 opens wide to the upside of shell 2.Roughly rectangular print cartridge 19 (is represented versicolor print cartridge with reference number 19a-19d respectively; Be black (BK), cyan (C), carmetta (M) and yellow (Y) print cartridge; See Fig. 3 and Fig. 4) China ink that comprises four kinds of colors respectively to be being used for panchromatic record, and print cartridge 19 area in planar view is less and have a bigger height dimension.The structure of ink storing unit 15 makes it can hold print cartridge 19, and these print cartridges 19 are in line and can they be removed from top along X-direction.
In addition, (represent with reference number 20a-20d respectively through a plurality of (being four present embodiment) ink supply pipe (China ink pipe) 20 from each print cartridge 19 (representing with reference number 19a-19d respectively); See Fig. 5) to 4 ink supply of inkjet type header record.In addition, when the black color of using more than four kinds of colors (6 to 8 kinds of colors etc.), can hold in the ink storing unit 15 and the cooresponding print cartridge of black number of color, and also can increase the number of ink supply pipe 20 according to the print cartridge number.
In this embodiment, each ink supply pipe 20a-20d is a pipe independent of each other.And the equal in length of employed ink supply pipe 20a-20d.
As shown in Figure 4 and Figure 5, the root of a plurality of (being four in the present embodiment) ink supply pipe 20 is tied together by the part of an end 15a of ink storing unit 15, and ink supply pipe 20 extends to the other end (left end Fig. 4 when the downstream of sheet transport direction is observed) from one end (right-hand member Fig. 4 when the downstream of sheet transport direction is observed) on the upper surface of following cover piece 29 along Y direction.In this case, the root of all ink supply pipe 20a-20d is arranged to delegation in the horizontal along the upper surface of the following cover piece 29 of general planar.To the upper surface support of small part (grading) ink supply pipe 20 by following cover piece 29 as pars intermedia.
Subsequently, twist all ink supply pipe 20a-20d, make the centre portion of ink supply pipe in the lower cover 29 one one of the long longitudinal divider 32 of side direction vertically surface (almost vertical plane) extend.In addition, the centre portion of all ink supply pipe 20a-20d all vertically is being arranged between delegation and fixing (maintenance or clamping) the vertically surperficial and vertical plate shape connecting element 33 at longitudinal divider 32, thus connecting element 33 usefulness synthetic resin manufacturings and relative with fixing described vertical surfaces such as screws with longitudinal divider 32.The part of vertically surperficial fixing (maintenance) all ink supply pipe 20a-20d of connecting element 33 and longitudinal divider 32 is as the center fixed part.
Balladeur train 5 is provided with an attaching parts that extends to sheet transport direction (direction shown in the arrow A) downstream on general horizontal direction.The front end of all ink supply pipe 20a-20d is arranged to roughly walking crosswise in the horizontal direction, and they are connected on the connecting bridge that is arranged among Fig. 4 the left end when the downstream of sheet transport direction is observed in the attaching parts.Between center fixed part (connecting element 33) and this connecting bridge, the orientation of all ink supply pipe 20a-20d centre portions is also from changing into to the right left.Distortion and row (arrangement) phase place of arranging all ink supply pipe 20a-20d make row (arrangement) phase place of all ink supply pipe 20a-20d change into the general horizontal direction of connecting bridge side from the approximate vertical direction of connecting element 33 sides.Like this, although crooked independently of one another each ink supply pipe 20a-20d also is easy to all ink supply pipe 20a-20d are tied together.Certainly all ink supply pipe 20a-20d separate independently of one another between connecting element 33 (center fixed part) and this connecting bridge.
The width of the paper P that is carried (paper P than minor face) than the outside, at one end when observing from the downstream of sheet transport direction among Fig. 4 (be in the present embodiment right-hand member) places black receiving unit, and is provided with maintenance unit at the other end (left end among Fig. 4 when the downstream of sheet transport direction is observed).Black receiving unit and maintenance unit are not shown in the drawings.This structure makes: in the process of recording operation, header record 4 can be at the flush position place in being arranged on black receiving unit periodically ink-jet to avoid black plug nozzle.The China ink receiving unit receives the China ink of ejection like this.Maintenance unit is positioned at holding fix, faces with balladeur train 5.The cap portion of maintenance unit is from the nozzle surface of following covering header record 4, and carries out recovery operation, thereby optionally aspirates the China ink of every kind of color or remove bubble in the black damping case (not shown) of header record 4.In addition, when balladeur train 5 along shifted laterally during near maintenance unit, unshowned cleaning device (wiper blade) wiping nozzle surface is to clean.
In this embodiment, be provided with flexible flat cable 40, spray the nozzle of the feasible black header record on being installed in balladeur train 54 selectively of this command signal to transmit from the command signal that is arranged on unshowned control part in the shell 2.Placing flexible flat cable 40 makes: it is arranged in the zone (movable area, non-binding zone or do not have the constraint) of ink supply pipe 20a-20d process when balladeur train 5 moves back and forth on Y direction (main scanning direction), and flexible flat cable 40 is roughly parallel to the direction (see figure 4) that the ink supply pipe extends.
In addition, set the convex curved direction of centre portion of the bending of ink supply pipe 20, make direction that the bending direction of centre portion of bending of its bending direction and flexible flat cable 40 moves back and forth about balladeur train 5 toward each other.This structure makes ink supply pipe 20 and flexible flat cable 40 can arrange in vertical direction height place (almost in same horizontal surface) much at one.Entire image recording unit 1 thickness is reduced.
In addition, pair of registration rollers (conveying roller) 27 is placed on the upstream side of platen 26, is used for paper P is delivered to position below the header record 4.Be used for paper feed arm 6a axle drive shaft 50 bearing (mounting portion) (not shown) and be used for the exit roller 28 that paper P is transported to paper feeder unit 10 is placed on the downstream (seeing Fig. 2,5 and 6) of platen 26 wherein paper P being carried out record.
Describe the structure of paper carrier below in detail.In this embodiment, structure sheet feed tray 3 is to hold many paper P that pile up, paper P is as recording medium and for example be cut into A4 size, letter size, be suitable for writing size or other size of legal documents, and makes going up in the direction vertical with sheet transport direction (inferior direction of scanning and X-direction) (direction vertical with the paper of displayed map 2, main scanning direction and Y direction) than minor face of paper P extend.In addition, auxiliary supports 3a supports the rear end of longer paper P as the paper that is suitable for writing legal documents, and auxiliary supports 3a is installed in the front end (corresponding to the front surface of shell 2) of sheet feed tray 3, makes it can move (seeing Fig. 7 to 10) along X-direction.In the state shown in Fig. 2, auxiliary supports 3a is placed on and makes it from shell 2 outwardly directed positions.When the paper P of employed for example A4 size can be contained in the sheet feed tray 3 (being that paper P does not reach outside the shell 2 by opening portion 2a), can be contained in auxiliary supports 3a among the holding portion 3b, thereby auxiliary supports 3a does not hinder paper feed.
The structure of feed unit 6 is described below.Axle drive shaft 50 by the synthetic resin manufacturing is supported in rotating mode by axis hole as shown in Figure 7, and these axis holes are respectively formed on the side plate and a pair of axle bearing plate (all not illustrating) of main frame 21.The front end of axle drive shaft 50 inserts the base part of the paper feed arm 6a of feed unit 6, thereby therefrom stretches out on side direction.In addition, along with the rotating drive of axle drive shaft 50, paper feed roller 6b utilizes the gear drive 6c that is arranged in the paper feed arm 6a to go up in predetermined direction (anticlockwise direction among Fig. 6) and rotates.In addition, biasing member (as torsion spring) (not shown) biasing paper feed roller 6b, thus make it always to be positioned at the position lower than base plate 21b.
In addition, placing the inclination separating plate 8 that is used to separate paper in the rear end (right side among Fig. 2,7 and 10, the left side among Fig. 8 and 9) of sheet feed tray 3, inclination separating plate 8 will be discussed in more detail below.In addition, the base part of the paper feed arm 6a of feed unit 6 is being installed on the base plate 21b of main frame 21 in the mode of rotating on the above-below direction.Be provided with the resilient separation pad 8a (being made of leaf spring in this embodiment) as separation member in the central part office that the inside face (surface) of inclination separating plate 8 is gone up broad ways (Y direction), the paper feed roller 6b that is located at paper feed arm 6a lower end and one of resilient separation pad 8a connect and one Di separate and carry the paper P in the sheet feed tray 3 of being stacked on as recording medium.The paper P that separates is fed to record cell 7 through transfer passage spare 9, compare with sheet feed tray 3, record cell 7 is arranged on top (in higher position), and transfer passage spare 9 turns to passage (paper transport path) as the U-shaped that points to the side top, and the structure of transfer passage spare 9 is as described below.
In addition, under the auxiliary supports 3a of sheet feed tray 3 was contained in state among the holding portion 3b, sheet feed tray 3 was substantially equal to image read-out 12 in the length on the X-direction and adds the length of operating panel 14 on X-direction.Therefore, because image recorder 1 becomes have the roughly cuboid of square shape in planar view, thus packing image recorder 1 easily during in packing so that as Product transport, and can reduce the size of packing box.
When paper feed roller 6b was stacked on many (being 100 in this embodiment) paper P on the base plate 3c of the sheet feed tray 3 that synthetic resin makes along the direction level of presenting towards the transfer passage spare 9 that turns to passage as U-shaped, multi-feed prevented that part 51 from remaining on the paper P that will present at last in the sheet feed tray 3.Multi-feed prevents that part 51 from comprising a substrate pads 52 and a substrate plate 53, and substrate pads 52 is by manufacturings such as for example corks, and as the great friction coefficient parts, substrate plate 53 is as the low-friction coefficient parts.Substrate pads 52 is placed among the base plate 3c of sheet feed tray 3, and 6b is relative with the paper feed roller.Substrate plate 53 usefulness for example metal sheet such as corrosion-resistant steel are made.
In this embodiment, substrate pads 52 and substrate plate 53 with the layout parallel to each other on the vertical direction of (conveying) direction (in Figure 12, illustrating) of presenting of paper P with arrow.Preferred substrate plate 53 is placed on independent substrate pads 52 both sides, thereby near rising to platform 54 in the end in the downstream of throughput direction (seeing Fig. 8,9,12 and 13).Rise to that platform 54 and base plate 3c are whole to be formed and therefrom stretch out, it is higher on the feed direction downstream to rise to platform 54.These two substrate plates 53 utilize adhesive agent to be fixed to the upper surface of base plate 3c.Formed a through hole 55 on base plate 3c along the vertical direction, through hole 55 is being arranged between that position to substrate plate 53.Substrate spring 56 is placed in this through hole 55, and substrate spring 56 plays the effect of strut member, utilizes adhesive agent to fix and support base pad 52 on its upper surface.
The cylindrical most peripheral spare 6b1 of paper feed roller 6b makes with materials such as neoprene.Determine material and the surface configuration (being friction coefficient) of most peripheral spare 6b1, make when paper feed roller 6b extruding contacts paper P, paper feed roller 6b and with paper P that paper feed roller 6b contacts between the friction force that produces greater than the paper P that contacts with paper feed roller 6b be located immediately at the friction force that produces between another paper P below this paper P.In this embodiment, adopted elastic body or ethylene propylene diene rubber (EPDM) as the material of forming most peripheral spare 6b1.Direction in the surperficial upper edge of most peripheral spare 6b1 perpendicular to throughput direction has formed annular knurl.
Similar with it, the material of determining substrate pads 52 makes with surface configuration: as paper feed roller 6b when extruding contacts paper P when rotating, substrate pads 52 and with paper P that substrate pads 52 contacts between the friction force that produces greater than the paper P that contacts with substrate pads 52 be located immediately at the friction force that produces between another paper P above this paper P.In this embodiment, use cork as the material of forming substrate pads 52.
In addition, the material of determining substrate plate 53 makes with surface configuration: as paper feed roller 6b when extruding contacts last paper P when rotating, paper feed roller 6b and with paper P that paper feed roller 6b contacts between the friction force that produces greater than (a) substrate pads 52 and substrate plate 53 and (b) with paper P that substrate pads 52 and substrate plate 53 contact between the friction force that produces.In this embodiment, employing has the stainless steel sheet of less roughness of surface as substrate plate 53.Perhaps can adopt nickel-plate steel plate.
In addition, the width W 1 (perpendicular to the size on the direction of feed direction) of most peripheral spare 6b1 is set, makes most peripheral spare 6b1 at least across the centre portion on the Width that is positioned at substrate pads 52 substrate on two sides plates 53 (seeing Figure 13).
The front end of substrate spring 56 (free end in the sheet feed direction downstream) comprises and is used to prevent the regulating part 57 that floats that crooked regulating part 57 makes it have the U-shaped cross section.Utilize this structure, (do not comprise that most peripheral spare 6b1 does not utilize the state of the paper P pressure substrate pads 52 on the base plate 3c to the state that presses down substrate pads 52 at the most peripheral spare 6b1 of paper feed roller 6b; This state is called not loaded state) under, the lower surface of the base plate 3c of forward position of regulating part 57 (upper edge) and close through hole 55 is near regulating substrate pads 52, like this, in the surface (upper surface) of the substrate pads 52 on substrate spring 56, the surperficial degree that protrudes upward from the surface (upper surface) of substrate plate 53 of a part that is positioned at the cooresponding position of part that contacts with paper feed roller 6b can not surpass predetermined value (being about 0.5mm in this embodiment), and the altitude hold of the surface of substrate plate 53 (upper surface) is in corresponding position.In addition, this predetermined value changes according to thickness, material or the shape in planar view of substrate spring 56.Can design this predetermined value makes: when presenting second from the bottom paper P, substrate pads 52 can not become the same high with substrate plate 53 owing to the extruding contact force of paper feed roller 6b.In addition, substrate pads 52 is set about the samely with the height and position on the surface (upper surface) of the substrate plate 53 that is positioned at the corresponding position at the height and position on the surface of feed direction upstream side.In addition, the surface of setting substrate pads 52 makes: when paper feed roller 6b pushed substrate pads 52, substrate pads 52 was roughly parallel to each other with substrate plate 53, thereby substrate pads 52 has identical height with substrate plate 53.
In this embodiment, when when planar view is observed, substrate spring 56 forms roughly trapezoidal shape, wherein at the width at its base end place greater than width at its free end place.When planar view is observed, substrate plate 53 forms roughly trapezoidal shape, and is opposite with substrate spring 56, and it is at the width of the paper feed direction upstream side width (seeing Fig. 8 and 9) less than the downstream.
Like this, when substrate plate 53 was placed on substrate spring 56 left and right sides, the size on the Width of required substrate plate 53 just can shorten as much as possible.In addition, can increase the crooked cross section zone of substrate spring 56.So just can alleviate any stress concentration.
When the sheet material that comprises metals such as corrosion-resistant steel when substrate plate 53 usefulness as the low-friction coefficient parts was made, its abrasion resistance was higher, and surface friction coefficient is lower.Therefore, compare as the situation of low-friction coefficient parts, can carry out feeder operation reliably last paper P with the surface of the base plate 3c that uses the synthetic resin manufacturing.In addition, on the surface of base plate 3c, the whole upwards leader 3e that formed between the base part of substrate pads 52 and inclination separating plate 8 with inclined surface, upwards leader 3e is lower at the upstream side of the feed direction of paper P, uprises (seeing Fig. 9 and 12) towards the downstream of feed direction.According to this structure, when the quantity of the paper P in being stacked on sheet feed tray 3 reduces, the front end of the paper P that paper feed roller 6b presents abuts against on the higher position of the inclination separating plate 8 higher than the base part of inclination separating plate 8, so just can carry out the operation of upwards presenting to paper P reposefully.In addition, upwards leader 3e can comprise flat, and this flat is positioned at the higher part office of leader, surperficial parallel with base plate 3c roughly, and to the base part extension of inclination separating plate 8.
In addition, in direction (the Y direction vertical with the feed direction of paper P; The Width of paper P) on, the surface of inclination separating plate 8 forms the curved surface (see figure 9) of projection, this protruding curved surface (a) is given prominence in the forward position to paper P near the part place on the core of paper P Width, the zig-zag separating pad 8a, separating pad 8a is as separation member, and it is positioned on the core of paper P Width; And (b) along with near paper P on paper P Width two ends and from the forward position withdrawal of paper P.Like this, the surface of inclination separating plate 8 is the curved surface of projection, thereby before two ends on the Width of paper P are near inclination separating plate 8, the forward position of the paper feeding P of institute on the core of its Width reliably with to carry out the separating pad 8a moving contact of separating action to paper P.
In addition, near inclination separating plate 8 upper ends, be used on the direction of transfer passage spare 9 steadily the roller that freely rotates 60 of guiding paper P be installed in the left and right sides (seeing Fig. 8,9 and 18) of separating pad 8a.In addition, separately form inclination separating plate 8 and sheet feed tray 3, thereby inclination separating plate 8 is removably mounted on the front end (seeing Figure 19) of sheet feed tray 3.
Describe below in the bottom that sheet feed tray 3 is inserted into shell 2 or paper feed arm 6a automatically moves up or down when therefrom extracting out structure.One be roughly that plate shaped cam follower 58 is parallel to axle drive shaft 50 and from the paper feed arm 6a that synthetic resin is made integral body stretch out, cam follower 58 is placed on the lower face side of the base plate 21b of main frame 21.In sheet feed tray 3, cam follower 58 extends to (see figure 7) on the cam portion 59 on the upper surface of side plate 3d.In addition, cam follower 58 is set to make: be contained in the most of paper feed arm 6a that rotates and rise and the paper feed roller 6b opening 21c (see figure 6) by base plate 21b under the state on the upper surface side of main frame 21, thereby cam follower 58 is roughly parallel substantially with it near the lower surface of base plate 21b.
According to this structure, insert sheet feed tray 3 when passing shell 2 fwd opening portion 2a, then the initiating terminal of the lower surface of cam follower 58 and cam portion 59 (near a side) as the inclination separating plate 8 of oblique tube near, along with advancing of sheet feed tray 3 is mobile, cam follower 58 is upwards boosted, and paper feed arm 6a and paper feed roller 6b upwards rotate along with cam follower 58 is whole.Then, paper feed arm 6a and paper feed roller 6b cross the upside of inclination separating plate 8.Under the state that rises paper feed arm 6a and paper feed roller 6b, paper feed arm 6a and paper feed roller 6b are contained in by opening 21c in the upper space of base plate 21b (in main frame 21).At this moment, flat cam follower 58 also with the lower surface of base plate 21b in abutting connection with or closed contact.Therefore, need not increases the base plate 21b of main frame 21 and the vertical space height between the sheet feed tray 3, just can guarantee the rotating operation up and down of paper feed arm 6a and paper feed roller 6b.In other words, owing to can reduce from sheet feed tray 3 to main frame the height of 21 base plate 21b, so the image recorder 1 of the compactness that overall height reduced can be provided.
When being in sloping portion after cam follower 58 is being crossed the extreme higher position of cam portion 59, paper feed arm 6a and paper feed roller 6b are rotated by biased downward.Then, paper feed roller 6b can with the adjacency in the top that is stacked on the paper P among the holding portion 3b.
When sheet feed tray 3 advances to position innermost in the shell 2 (set condition), if the extreme lower position of an end (lower end) of the cam follower 58 of paper feed arm 6a and cam portion 59 near, paper feed roller 6b can prevent that part 51 is near (seeing Fig. 7 and 12) with multi-feed.
Like this, because feed unit 6 is provided with the position cam follower 58 lower than the base plate 21b of main frame 21, and sheet feed tray 3 is provided with cam portion 59, along with sheet feed tray 3 is advanced with respect to shell 2 (body shell) in-to-in or is withdrawn and moves, cam portion 59 is temporary transient at least to raise or rotation feed unit 6 and cam follower 58, therefore, and along with advancing and retraction operation of sheet feed tray 3, feed unit 6 can automatic lifting, and is simple thereby this operation becomes.
By the manufacturing of synthetic resin injection molding is turned to the transfer passage spare 9 of passage (transfer passage spare) as U-shaped, transfer passage spare 9 is transported to record cell 7 to paper P from the upper end of inclination separating plate 8, makes transfer passage spare 9 and makes it have the board 9a that is horizontal U-shaped in lateral plan.The back side (back) in transfer passage spare 9 left and right sides, elastic joint part 62 and elasticity adjusting device part 63 and whole form (the seeing Figure 15) of board 9a.At the upper end of the inclination separating plate 8 of the sheet feed tray 3 that pushes shell 2 bottoms, the opening of transfer passage spare 9 through being limited to shell 2 rear end can be inserted into shell 2 inside.Transfer passage spare 9 can be installed on the shell 2 with predetermined posture and can disassemble from it.Therefore, when paperboard takes place, be easy to a transfer passage spare 9 and disassemble, thereby be easy to handle paperboard from shell 2.
To shown in 18, a plurality of ribs 61 are gone up at the Width vertical with throughput direction (Y direction) and are integrally stretched out from board 9a with proper spacing as Fig. 6,10 and 14, and the throughput direction that these ribs 61 are parallel to paper P extends.In this case, the cross sectional shape of each rib 61 on side direction about the center symmetry of paper P Width.Each rib 61 has gently sloping surface 61a, and inclined-plane 61a points to the outside (seeing Figure 20) of paper P Width with obtuse angle θ 1.Obtuse angle θ 1 is the angle that limits between the surface of board 9a and the gently sloping surface 61a, and its scope is preferably spent between 140 degree 130.According to this structure, when carrying its width roughly and between a pair of right rib 61 and the left rib 61 during equidistant paper P, even the transfer position of paper P departs from paper P Width slightly, also can place paper P along the side of throughput direction along making this side along becoming obtuse angle θ 1 and sliding resistance less with inclined-plane 61a.Therefore, can prevent the problem that occurs in the prior art, as comprising the bar shaped rib that erects from the board surface in the prior art, the side of the paper P that is carried is along on the upright side of running into the bar shaped rib and retrained by it, thereby the bending of paper P is advanced and is caused paperboard, perhaps produces the fluctuating striped (being called gauffer) that extends along throughput direction on paper P surface.
As shown in figure 14, be similar to inclination separating plate 8, upstream side in sheet transport direction, the intrinsic curve that connects the front end of the inside face of board 9a of transfer passage spare 9 and a plurality of rib 61 respectively forms the curved surface of a projection, this protruding curved surface is outstanding in the central part office of transfer passage spare 9 broad wayss, and along with near transfer passage spare 9 on Width the end and withdrawal gradually.Therefore, the left and right sides sidepiece of paper P forward position on Width of carrying along transfer passage spare 9 inside faces (surface) all is difficult to touch the inside face (surface) of board 9a, so just can reduce transporting resistance.
On paper P Width, at least the core of transfer passage spare 9 be provided with a plurality of rollers that freely rotate 64 (see Figure 14,16 and 17B).Throughput direction along paper P is arranged this a plurality of rollers 64 with proper spacing.Begin to add subscript a, b, c and d for successively each roller 64 from upstream side.In addition, be placed on the diameter of roller 64 of throughput direction upstream side greater than the diameter of another roller 64 that is placed on the downstream.
In this embodiment, the roller 64c in downstream and the upstream rollers 64d that is adjacent have diameter much at one.In addition, in this embodiment, on the Width of paper P, two rollers 64 are provided with same diameter with proper spacing.
The board 9a of transfer passage spare 9 and holding portion 66 whole formation, holding portion 66 make each roller 64a to 64d and their pivot shaft 65 to the surface of paper P process come out (see Figure 14,15,16 and 17A).Support section 67 is used to support the pivot shaft 65 that those stretch out to the two ends of 64d from each roller 64a, and support section 67 is formed in the holding portion 66 with recessed form, has the roughly open recess of semicircular arc cross-sectional plane as one.
Cover piece 68 by the synthetic resin manufacturing removably is placed on the surface of holding portion 66, thus each roller 64a at least a portion outer surface of 64d come out and cover each pivot shaft 65 support section 67 (see Figure 14,16 and 17A).In addition, cover piece 68 is crooked, is horizontal U-shaped in lateral plan, thereby extends along the surface of board 9a.In the surface of the broad of cover piece 68, be formed with fenestra 68a in predetermined corresponding position, fenestra 68a allows each roller 64a to come out to a part of outer surface of 64d.The bottom of cover piece 68 defines recessed 70, recessed 70 and engages with the projection 69 of stretching out from board 9a.In addition, the upper end of cover piece 68 is formed with engaging claw 72, and engaging claw 72 engages (seeing Figure 16) with the step-like bonding part 71 that is formed on board 9a upper end.Utilize this structure, can make roller 64a simple in structure to the support section 67 of 64d, and each roller 64a is to the assembling of 64d with more change jobs can be very convenient.
As mentioned above, bigger at the diameter of the roller 64a of throughput direction upstream side, and the outer surface of roller 64a is less from the height that cover piece 68 stretches out, thus the angle between the outer surface of the surface of cover piece 68 and roller 64a is the obtuse angle near 180 degree.So just can reduce caused resistance when the forward position of the paper P that moves up from inclination separating plate 8 contacts with the outer surface of roller 64a significantly.So can carry out operation reposefully, thereby prevent the generation of paperboard effectively to the board 9a downstream conveyance of sheets P that bends to U-shaped.
In addition, to 64d, the diameter of each roller increases to their core continuously from their end for roller 64a.Preferably, the maximum gauge of the rotation outer surface of roller partly forms the face of cylinder, and perhaps the whole rotation outer surface of roller forms the curved surface of projection.Therefore, on the recording surface (facing) of the conveyance of sheets P of institute, do not form striped, and can not destroy the image recording quality of in record cell 7, carrying out subsequently with the front surface of board 9a.In addition, if get rid of at each roller 64a to the rotation outer surface of 64d and each roller 64a to the intersection between the end surfaces of 64d (intersection is carried out fillet to be handled), just can avoid reliably on the recording surface of paper P, striped occurring, thus further stabilized image recording quality.
In this embodiment, for normal paper, the maximum amount of piling up of paper P is set at about 100 in the sheet feed tray 3, and stacks as high (H1) is set in about 10mm.Corresponding therewith, increase the height (vertical dimension) of inclination separating plate 8 from the upper surface of base plate 3c to the upper end of inclination separating plate 8, make the lower end that when maximum is piled up, also can transfer to paper P the board 9a of transfer passage spare 9 reposefully.Preferably, the upper edge 8b of inclination separating plate 8 extends to the position higher than the lower edge of board 9a, thereby inclination separating plate 8 covers the front surface side of board 9a, promptly overlap with board 9a (seeing Figure 17 A and 18).
Shown in Fig. 9,10,11,17B, 18 and 19, owing to inclination separating plate 8 is formed the curved surface of projection, between the back edge of the base plate 3c of the base part of inclination separating plate 8 and sheet feed tray 3, formed a gap, in order to seal this gap, the base part of inclination the separating plate 8 and additional ribs 73 that becomes predetermined space on the Y direction is whole forms, additional ribs 73 have suitable length and have and be roughly leg-of-mutton shape of cross section.When be fed at following paper P of the less state of the paper P amount of piling up base plate 3c near the time, the existence of additional ribs 73 allows the forward position of paper P is directed to reliably the upside of inclination separating plate 8, and the forward position of paper P can not be coupled in this gap.
Structure shown in Figure 21 to 23 can keep the engagement state of sheet feed tray 3 through the opening portion 2a approximate horizontal ground insertion of the bottom holding portion of shell 2, and can discharge engagement state at an easy rate when extracting sheet feed tray 3 out.Specifically, the lower surface of the sheet feed tray 3 of synthetic resin manufacturing forms with strengthening rib 76 integral body to opening portion 2a elongation on direction of insertion.Strengthening rib 76 integral body are formed with cam portion 77, have in downward view cam part 77 to be roughly trapezoidal shape.Be provided with a plurality of (being two in this embodiment) strengthening rib 76 and cam portion 77 in the Y direction with proper spacing.On the other hand, integral body is formed with attaching parts 79 on the basal surface of the shell 2 of synthetic resin manufacturing, and attaching parts 79 is gone up in the direction (Y direction) perpendicular to the direction of insertion (directions X) of sheet feed tray 3 and connected sheet feed tray 3.
When approximate horizontal ground inserted sheet feed tray 3 in the shell 2, the lower edge of cam portion 77 contacted with the upper surface slide of attaching parts 79.In the position of having finished the process in the shell that sheet feed tray 3 is inserted into, cam portion 77 is arranged in the back inside space along 79a of attaching parts 79, and the lower edge of cam portion 77 falls into the space (seeing the solid line of Figure 23) below the upper surface of attaching parts 79.Otherwise when extracting sheet feed tray 3 out, the forward position of cam portion 77 abuts against the back along on the 79a of attaching parts 79.Then, constitute cam member, make the lower edge of cam portion 77 when straddling on attaching parts 79 upper surfaces, move to approximate horizontal the front side (seeing the long and two-short dash line among Figure 23) of shell 2 by cam portion 77 and attaching parts 79.
In addition, plate shape engaging claw 80 and a pair of directing plate 81 that is positioned at engaging claw 80 left and right sides stretch out downwards, and are integrally formed between the cam portion 77 of the front end brace panel 78 of sheet feed tray 3 and sheet feed tray 3 (seeing Figure 21 to 23).Engaging claw 80 is smooth in the elongation of Y direction and at directions X.Two directing plates 81 are smooth in the directions X elongation and in the Y direction all.On the other hand, the front end of attaching parts 79 is formed with and engaging claw 80 and that position corresponding engagement part 82 to directing plate 81.Bonding part 82 comprises projection 83 and guide groove (attraction groove) 84, and projection 83 keeps the state that pushes of engaging claws 80, and guide groove 84 is located at the left and right sides of projection 83, and they open wide (seeing Figure 22 and 23) in the directions X elongation and at their front end.
In above-mentioned structure, when pushing sheet feed tray 3 in the shell 2, the lower edge of cam portion 77 straddles on the upper surface of attaching parts 79.Under this state, in the slight moving contact of upper surface of the lower edge of engaging claw 80 and projection 83, also the lower edge of engaging claw 80 is pushed.When crossing the rear end of projection 83 in the lower edge of engaging claw 80, almost meanwhile (finishing the moment that pushes), the forward position of cam portion 77 has moved past the back along 79a of attaching parts 79, sheet feed tray 3 is almost descending under the horizontal state afterwards, and the rear end surface of projection 83 hinders engaging claw 80, thereby can keep the set condition of sheet feed tray 3 with respect to shell 2.
As mentioned above, when extracting sheet feed tray 3 out, the lower edge of cam portion 77 straddles on the upper surface of attaching parts 79, thereby the front end of sheet feed tray 3 is upgraded suitable distance (referring to shown in Figure 23 from the transformation of solid line state to the long and two-short dash line state).Therefore, this moment engaging claw 80 the lower edge also with projection 83 the slight moving contact of upper surface.Therefore, just can help engaging claw 80 and bonding part 82 to break away from.In addition, can alleviate resin distortion, wear and tear or bleach because the advancing repeatedly and withdrawal (is connected or breaks away from) operation of sheet feed tray 3, the lower edge of engaging claw 80 and protruding 83 sharp impacts may cause above-mentioned distortion, wear and tear or bleach.In addition, when sheet feed tray is pushed or extracts out, can also provide the sensation of click to the user.
Claims (14)
1. image recorder comprises:
A main body;
An image recording unit, image recording unit forms image on recording medium;
A transfer passage is fed to image recording unit to recording medium by transfer passage, and image recording unit and transfer passage are placed in the main body;
A feed cassette, it is placed on the bottom of main body and is placed on below the image recording unit, thereby can move forward and backward, and can hold the recording medium that piles up in the feed cassette;
A feed unit, feed unit is fed to transfer passage to the recording medium that is stacked on the feed cassette; With
A separative element, separative element are placed on an end of feed cassette, thereby separate recording medium from the recording medium that piles up, and with the feed unit cooperation recording medium that separates upwards are transported to transfer passage, wherein:
Transfer passage comprises a transfer passage spare, and transfer passage spare has be the board of U-shaped on the side-looking direction;
Transfer passage spare comprises a plurality of rollers, and described a plurality of rollers are located at the central part office of transfer passage spare on the Width vertical with the throughput direction of recording medium in the mode that can freely rotate.
2. image recorder as claimed in claim 1, wherein:
On the throughput direction of recording medium with the described a plurality of rollers of arranged at predetermined intervals;
The diameter that is positioned at a roller of throughput direction upstream is equal to or greater than the diameter of another roller that is positioned at the throughput direction downstream.
3. image recorder as claimed in claim 1, wherein the diameter of each roller increases to the core of each roller gradually from the end of each roller.
4. image recorder as claimed in claim 1, the bight of wherein removing the intersection between the end surfaces of the outer surface of each roller and each roller.
5. image recorder as claimed in claim 2, wherein:
Transfer passage spare further comprises a holding portion, holds the axle of roller and roller in this holding portion, and this holding portion is exposed to roller and axle outside the surface of recording medium process of transfer passage spare simultaneously; And
Cover piece removably is placed on this surface of recording medium process of transfer passage spare, thereby exposes at least a portion of each roller and cover the axle of roller.
6. as the described image recorder of any one claim in the claim 1 to 4, wherein:
At the upstream side of the throughput direction of recording medium, the surface that the recording medium of transfer passage spare slips over forms the curved surface of projection; And
This protruding curved surface is outstanding in the central part office of transfer passage spare broad ways, and along with near transfer passage spare on Width the end and withdrawal gradually.
7. as the described image recorder of any one claim in the claim 1 to 3, wherein:
Transfer passage spare further comprises a plurality of ribs that stretch out from the surface of recording medium process, and these ribs extend on the throughput direction of recording medium, and is arranged in position than roller more lateral with predetermined interval; And
Each rib has cross-sectional plane on the Width of recording medium, in this cross-sectional plane, each rib becomes the obtuse angle outward-dipping with Width.
8. image recorder as claimed in claim 7, wherein:
At the upstream side of the throughput direction of recording medium, the surface that is slipped over by the recording medium that transfer passage spare and rib limited forms the curved surface of projection; And
This protruding curved surface is outstanding in the central part office of transfer passage spare broad ways, and along with near transfer passage spare on Width the end and withdrawal gradually.
9. as the described image recorder of any one claim in the claim 1 to 5, wherein:
Separative element is included in the separation member of the central part office on the Width, and separation member is near the forward position of recording medium, thereby one connects a ground separation recording medium; And
Separative element further comprises the plate of lobed curved surface, and this protruding curved surface is outstanding to the forward position of recording medium near separation member, and along with near recording medium on Width the end and from the forward position withdrawal of recording medium.
10. image recorder as claimed in claim 9 wherein forms a rib with the base part of separative element is whole, thereby is enclosed in the gap that forms between the base part of separative element of the base plate of feed cassette and lobed curved surface.
11. image recorder as claimed in claim 9, wherein:
A friction member is placed in the face of feed unit by base plate place in feed cassette;
On base plate, place a upwards leader, upwards leader is positioned at the downstream of friction member on the throughput direction of recording medium, and between the base part and friction member of separative element, upwards leader is lower in friction member one side, and uprises gradually towards base part one side.
12. as the described image recorder of any one claim in the claim 1 to 5, wherein:
Separative element comprises an inclination plate; And
On a recording medium receiving surface of transfer passage spare, a upper edge of inclination plate extends to a position higher than the lower edge of transfer passage part, thereby inclination plate and transfer passage spare are partly overlapping.
13. as the described image recorder of any one claim in the claim 1 to 5, wherein:
Feed cassette comprises an engaging claw on the lower surface of fore-end, and when feed cassette was pushed in the main body of image recorder fully, engaging claw engaged with bonding part in being arranged on main body; And
Between lower face side of feed cassette base plate and main body, be provided with cam member, when from main body, extracting feed cassette out, cam member guiding and rising feed cassette, thus help engaging claw and bonding part to unclamp.
14. as the described image recorder of any one claim in the claim 1 to 5, wherein transfer passage spare is releasably attached on the main body of image recorder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004188294A JP4206976B2 (en) | 2004-06-25 | 2004-06-25 | Image recording device |
| JP2004188294 | 2004-06-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1712341A true CN1712341A (en) | 2005-12-28 |
| CN100379661C CN100379661C (en) | 2008-04-09 |
Family
ID=35198038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510078842XA Expired - Fee Related CN100379661C (en) | 2004-06-25 | 2005-06-23 | Image recording apparatus |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1612052B1 (en) |
| JP (1) | JP4206976B2 (en) |
| CN (1) | CN100379661C (en) |
| DE (1) | DE602005015391D1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205742A (en) * | 2010-03-10 | 2011-10-05 | 精工爱普生株式会社 | Sheet member transporting apparatus and recording apparatus having sheet member transporting apparatus |
| CN106494915A (en) * | 2015-09-08 | 2017-03-15 | 佳能株式会社 | Sheet conveyance apparatus and imaging device |
| CN108689192A (en) * | 2017-03-30 | 2018-10-23 | 兄弟工业株式会社 | Transmission equipment |
| CN111098603A (en) * | 2018-10-25 | 2020-05-05 | 陪里你色株式会社 | Integrated ink cartridge and printing device using the same |
| CN111792432A (en) * | 2019-04-01 | 2020-10-20 | 兄弟工业株式会社 | Image forming apparatus with a toner supply unit |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4534982B2 (en) | 2005-12-29 | 2010-09-01 | ブラザー工業株式会社 | Conveying apparatus and image forming apparatus |
| JP4497092B2 (en) | 2005-12-29 | 2010-07-07 | ブラザー工業株式会社 | Transport device |
| JP5903857B2 (en) * | 2011-12-02 | 2016-04-13 | ブラザー工業株式会社 | Feeding device and image recording device |
| JP6575749B2 (en) | 2015-06-26 | 2019-09-18 | 株式会社リコー | Sheet feeding apparatus and image forming apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1264700B1 (en) * | 2000-02-24 | 2005-08-10 | Seiko Epson Corporation | Paper feeder and recording apparatus incorporating the same |
| US6830244B2 (en) * | 2001-09-11 | 2004-12-14 | Nisca Corporation | Sheet feeding apparatus |
-
2004
- 2004-06-25 JP JP2004188294A patent/JP4206976B2/en not_active Expired - Fee Related
-
2005
- 2005-06-23 CN CNB200510078842XA patent/CN100379661C/en not_active Expired - Fee Related
- 2005-06-24 EP EP20050253946 patent/EP1612052B1/en not_active Expired - Fee Related
- 2005-06-24 DE DE200560015391 patent/DE602005015391D1/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205742A (en) * | 2010-03-10 | 2011-10-05 | 精工爱普生株式会社 | Sheet member transporting apparatus and recording apparatus having sheet member transporting apparatus |
| CN106494915A (en) * | 2015-09-08 | 2017-03-15 | 佳能株式会社 | Sheet conveyance apparatus and imaging device |
| US10207883B2 (en) | 2015-09-08 | 2019-02-19 | Canon Kabushiki Kaisha | Sheet conveyance apparatus and image forming apparatus |
| CN106494915B (en) * | 2015-09-08 | 2019-05-28 | 佳能株式会社 | Sheet conveyance apparatus and imaging device |
| CN108689192A (en) * | 2017-03-30 | 2018-10-23 | 兄弟工业株式会社 | Transmission equipment |
| CN108689192B (en) * | 2017-03-30 | 2021-04-30 | 兄弟工业株式会社 | Conveying apparatus |
| CN111098603A (en) * | 2018-10-25 | 2020-05-05 | 陪里你色株式会社 | Integrated ink cartridge and printing device using the same |
| CN111792432A (en) * | 2019-04-01 | 2020-10-20 | 兄弟工业株式会社 | Image forming apparatus with a toner supply unit |
| CN111792432B (en) * | 2019-04-01 | 2023-07-14 | 兄弟工业株式会社 | Image forming apparatus with a plurality of image forming units |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4206976B2 (en) | 2009-01-14 |
| JP2006008328A (en) | 2006-01-12 |
| EP1612052A1 (en) | 2006-01-04 |
| EP1612052B1 (en) | 2009-07-15 |
| DE602005015391D1 (en) | 2009-08-27 |
| CN100379661C (en) | 2008-04-09 |
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