WO2004096682A1 - 給送装置及び記録装置 - Google Patents
給送装置及び記録装置 Download PDFInfo
- Publication number
- WO2004096682A1 WO2004096682A1 PCT/JP2004/006364 JP2004006364W WO2004096682A1 WO 2004096682 A1 WO2004096682 A1 WO 2004096682A1 JP 2004006364 W JP2004006364 W JP 2004006364W WO 2004096682 A1 WO2004096682 A1 WO 2004096682A1
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- WO
- WIPO (PCT)
- Prior art keywords
- paper
- feeding
- medium
- roller
- cut
- Prior art date
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Classifications
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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
-
- 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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/006—Means for preventing paper jams or for facilitating their removal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2402/00—Constructional details of the handling apparatus
- B65H2402/30—Supports; Subassemblies; Mountings thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
- B65H2405/11—Parts and details thereof
- B65H2405/111—Bottom
- B65H2405/1116—Bottom with means for changing geometry
- B65H2405/11164—Rear portion extensible in parallel to transport direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
- B65H2405/11—Parts and details thereof
- B65H2405/114—Side, i.e. portion parallel to the feeding / delivering direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
- B65H2405/11—Parts and details thereof
- B65H2405/114—Side, i.e. portion parallel to the feeding / delivering direction
- B65H2405/1142—Projections or the like in surface contact with handled material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
- B65H2405/11—Parts and details thereof
- B65H2405/115—Cover
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/30—Other features of supports for sheets
- B65H2405/33—Compartmented support
- B65H2405/332—Superposed compartments
- B65H2405/3321—Feed tray superposed to discharge tray
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/10—Size; Dimensions
- B65H2511/12—Width
Definitions
- the present invention relates to a feeding device for feeding a medium, and a recording device and a liquid ejecting device provided with the feeding device.
- an ink jet printer which is one of large-sized recording devices capable of printing on relatively large-sized paper, for example, from JIS standard A4 size to JIS standard A2 size. Since such a large-sized inkjet printer handles heavy paper, it is difficult to feed paper from the back side and discharge it to the front side like a small-sized inkjet printer. It feeds and discharges paper. That is, a paper feed tray and a paper discharge tray are arranged on the front of the ink jet printer. Then, the paper stored in the paper feed tray is taken out by the paper feed roller, and is fed while both sides are guided by the edge guide.
- the edge guide on one side of the paper is slidable in the width direction of the paper, and is mounted so that the sliding load varies depending on the sliding direction.
- the sliding load of the edge guide is reduced to smoothly slide the edge guide. ing.
- the sliding load of the edge guide is set to be large so that the edge guide does not move outward from the paper side even by the side pressure of the side of the paper.
- the paper can be reliably regulated by the edge guide, so that it is possible to prevent the paper from being fed skewed (see Japanese Patent Application Laid-Open No. Hei 9-866676).
- the above-described conventional ink jet printer can print on a relatively large-sized paper.
- the paper is guided in a state in which both sides of the paper are in contact with all of the edge guides, the paper is printed.
- the frictional resistance generated between the both sides of the paper and the two wedge guides becomes too large, and there is a possibility that paper feeding failures such as paper folding and jams may occur.
- An object of the present invention is to reliably feed various sizes of paper. Disclosure of the invention
- the feeding device is a feeding device that feeds a medium, and partially feeds one side of the medium when feeding the medium. It is equipped with a guidance unit that guides the user. Thus, the frictional resistance generated between one side of the medium and the guide portion can be reduced, so that a feeding failure such as a broken sheet or a jam can be prevented.
- the guide portion is formed as a step on guide means slidably attached in a direction orthogonal to the medium feeding direction. ing. This eliminates the necessity of providing the guide portion separately, so that the number of parts does not increase, and the costs for manufacturing and assembling parts can be reduced.
- the feeding device further comprising: a supply unit configured to supply the stored medium; a separation unit configured to separate only the uppermost layer of the supplied medium; and the separated medium.
- a feeding means for feeding the body and after the supply by the feeding means is released, the medium is displaced in a gap between the separating means and the feeding means as the feeding by the feeding means progresses.
- the guide portion is formed such that a feeding load generated by contact between the medium and the guide portion is reduced. As a result, even when the medium is separated from the supply means and fed only by the feeding means, the contact resistance between the medium and the guide portion gradually decreases, so that the feeding of the medium by the feeding means and the inside of the medium is performed. It is possible to prevent a decrease in sending accuracy.
- the guide portion is formed such that a contact portion with the medium gradually decreases as the feeding of the medium by the feeding unit progresses. It is characterized by As a result, the guide section can be easily configured, so that the installation space and the installation cost can be minimized.
- the separation unit includes a rough surface that separates only the uppermost layer of the medium.
- the separation means includes a roller for separating only the uppermost medium.
- the separation means includes a claw for separating only the uppermost medium. This makes it possible to improve the feeding accuracy by providing the guide portion in the feeding device provided with various separating means.
- a recording apparatus is a recording apparatus for recording on the medium. And each of the feeding devices is provided. Thereby, it is possible to provide a recording device having the above-described respective effects.
- a liquid ejecting apparatus is a liquid ejecting apparatus that ejects a liquid to a medium to be ejected, and is provided with each of the above-described feeding devices.
- FIG. 1 is a perspective view of the entire external configuration of an ink jet printer, which is one of the recording apparatuses according to one embodiment of the present invention, as viewed obliquely from the front.
- FIG. 2 is a perspective view of the paper supply / discharge tray of the printer of FIG.
- FIG. 3 is a perspective view showing a usage form of the paper supply / discharge tray of FIG.
- FIG. 4 is a perspective view showing another usage form of the paper supply / discharge tray of FIG.
- FIG. 5 is a sectional side view schematically showing the internal configuration of the printer of FIG.
- FIG. 6 is a diagram showing a contact state between the paper on the hopper and the paper feed roller.
- FIG. 7 is a perspective view showing details of the paper supply / discharge unit according to the embodiment of the present invention.
- FIG. 8 is a perspective view showing details of a main part of the paper supply / discharge unit of FIG.
- FIG. 9 is a front view of FIG.
- FIG. 10 is a side view of FIG.
- FIG. 11 is a cross-sectional view showing the internal structure of an ink jet printer capable of automatic back feeding with a separating member having rollers.
- FIG. 12 is a perspective view showing the periphery of the retard roller of FIG. '
- FIG. 13 is a side view of FIG.
- FIG. 14 is a rear perspective view of FIG. '
- FIG. 15 is a cross-sectional view showing the internal structure of an ink jet printer capable of automatically feeding the front surface provided with a separating member having a roller.
- FIG. 16 is a cross-sectional side view showing a sheet feeding cassette provided with a separating member having claws.
- FIG. 17 is a plan view of FIG.
- FIG. 18 is an operation diagram of the separation mechanism when the paper cassette is mounted on the ink jet printer.
- FIG. 19 is a plan view of FIG.
- FIG. 20 is a plan view of the paper feed cassette mounted on the ink jet printer.
- FIG. 21 is a first diagram illustrating a paper transport state of the printer in FIG. 1.
- FIG. 22 is a second diagram illustrating the paper conveyance state of the printer in FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a perspective view of the entire external configuration of an inkjet printer, which is one of the recording apparatuses according to an embodiment of the present invention, as viewed obliquely from the front.
- This inkjet printer 100 is a large desktop-type printer that can print on relatively large-sized so-called cut paper and roll paper, for example, from JIS A4 to JIS A2. And the whole is covered with a substantially rectangular housing 101 extending long in the width direction.
- a rectangular window 102 is formed on the upper surface of the housing 101.
- the window 102 is covered with a transparent or translucent window power member 103.
- the window force par 103 is attached so as to be rotatable in the direction of the arrow a shown in the figure around the rotation shaft at the upper part thereof.
- the user can perform maintenance work and the like of the internal mechanism through the window P 102 by lifting the window power member 103 to open the window part 102.
- cartridge storage sections 104 into which a plurality of ink cartridges can be inserted and removed. Each ink cartridge has an ink of each color for printing.
- Each cartridge storage section 104 is covered with a transparent or translucent cartridge force par 105.
- the cartridge force par 105 is illustrated with its lower pivot axis at the center. The user can replace the ink cartridge by lightly pressing the cartridge cover 105 to release the locking part and opening the cartridge storage part 104. be able to. '.
- an operation section 110 for instructing printer operation is provided.
- the operation unit 110 is a power system for turning on and off the power, an operation system for operating paper cueing and the like, and an ink flushing operation, a processing system for performing image processing, and the like.
- a liquid crystal panel 1 1 2 and the like for displaying a state are provided.
- the user can operate the button 111 while checking the liquid crystal panel 112.
- a tank storage section 106 through which the waste liquid tank 120 is inserted and removed is formed. This waste liquid tank 120 stores waste ink that is discarded during cleaning processing of the recording head 162 (see FIG. 5) or when replacing the ink cartridge. By pulling out the waste liquid tank 120, the user can perform a work of disposing of waste ink accumulated inside.
- a paper feed unit 130 for feeding rolled paper is provided so as to protrude upward and rearward.
- a roll paper holder (not shown) in which one roll of paper can be set is provided inside the paper feed unit 130, and a flip-up openable / closable type is provided on the front of the paper feed unit 130.
- a roll paper force par 13 1 is attached so as to cover a roll paper holder (not shown). The user can perform operations such as attaching / removing the staple-shaped paper by lifting the staple paper cover 13 1 and opening the paper feed unit 130.
- the upper surface of the roll paper cover 13 1 is formed as a paper feed guide surface capable of manually feeding the cut paper.
- a paper feed / discharge sheet for loading cut paper before printing and cut paper or rolled paper after printing.
- a paper supply / discharge unit 140 from which the tray 200 is inserted / removed is formed.
- the paper supply / discharge unit 140 is also formed so that thick paper that cannot be folded during transportation can be manually fed.
- the front of the paper supply / discharge tray 200 is inserted into the paper supply / discharge unit 140, and the rear of the paper supply tray 200 is fixed so as to protrude.
- the paper supply / discharge tray 200 is formed in a cassette type, in which the cut paper to be fed before printing is stacked and stored, and the cut paper or paper to be discharged after printing is stored in the upper part. Roll-shaped sheets are stacked and placed. The detailed structure of such a tray 200 will be described below with reference to FIGS.
- FIG. 2 is a perspective view of the entire external configuration of the paper supply / discharge tray 200 as viewed obliquely from the front.
- the paper supply / discharge tray 200 includes a paper supply tray 210 formed in a box shape, and a paper discharge tray 230 formed in a lid shape that covers the upper surface of the paper supply tray 210. ing.
- the paper feed / discharge tray 200 is formed to be stretchable in the paper feed / discharge direction, and can be stored compactly when not in use. Paper can be used.
- FIG. 3 and 4 are perspective views showing the paper supply / discharge unit 140 on which the paper supply / discharge tray 200 is mounted.
- the roll paper guide 240 The state of being stored on the upper surface of the member 239a, that is, the upper surface of the paper discharge member 239a is flat.
- the cut paper discharged through the paper discharge rollers 155 (see FIG. 5) is connected to the side and bottom surfaces of the guide part 144 having an L-shaped cross section and the paper discharge member 2.
- the sheets are smoothly stacked and placed on the sheet receiving surface formed by the upper surfaces of 39a to 23d.
- the sponge mat 144a is attached to the bottom of the guide part 144.
- This sponge mat 1 45 a holds the leading edge of the second cut sheet when the second cut sheet is ejected after the first cut sheet is placed. However, it has a non-slip function to prevent the first cut sheet from sticking and dropping from the sheet receiving surface.
- the first guide of the roll paper guide portion 240 stored on the upper surface of the paper discharge member 239a is used.
- the second guide plate 242 is pulled by the first guide plate 241, one end in the longitudinal direction is lifted, and the other end in the longitudinal direction is the upper surface of the paper discharge member 239 a. It slides backward along the groove 239 aa formed in.
- the first guide plate 241 is turned until the angle formed by the first guide plate 241 and the second guide plate 242 becomes an acute angle.
- the second guide plate 242 has a slide shape with one end in the longitudinal direction approaching the top of the side surface of the guide portion. For this reason, even if the roll-shaped paper discharged through the paper discharge port is curled, the leading end does not get caught in the guide portion side, and the leading end has a slide-like shape. It slides on the guide plate 2 42 of No. 2 and is guided to the upper surface side of the paper discharge members 2 39 a to 2 39 d. Therefore, the staple-shaped paper is smoothly stacked on the paper discharge receiving surface formed by the second guide plate 242 and the upper surface of the paper discharge members 239a to 239d. Will be placed.
- FIG. 5 is a sectional side view schematically showing the internal configuration of the ink jet printer 100 of FIG.
- a paper supply / discharge unit 140 In the housing 101, a paper supply / discharge unit 140, a transport unit 1'50, a recording unit 160, and the like are provided.
- the hopper 14 1 is formed in a flat plate shape on which cut paper can be placed, and one end is located near the feed roller 14 2 and the separating member 14 3, and the other end is mounted. It is arranged so as to be located close to the bottom surface of the paper feed unit 210 of the paper feed / delivery tray 200.
- the other end of the compression panel 144 is attached to the hopper 144 on one side, and the other end of the compression panel 144 is attached to the bottom of the housing 101. Accordingly, one end is pivoted about the other end.
- the paper feed roller 142 has a D-shaped sphere with a cross section partially cut away, and rotates intermittently to frictionally convey the urged paper on the hopper 141. I have.
- the upper surface of the separating member 143 is formed as a rough surface, and when the paper cut by the paper feed roller 142 is multi-fed, the lower-strength paper is replaced with the uppermost-strength paper. It comes to be frictionally separated from Here, the relationship between the cut sheet placed on the hopper 141 and the feed roller 142 will be described with reference to the drawings.
- FIG. 6 is a diagram showing a contact state between the cut sheet placed on the hopper 141 and the sheet feeding roller 142.
- FIG. 6A shows a case where the maximum number of cut sheets of paper P are placed on the hopper 141. In this case, when the hopper 141 is raised, the uppermost layer of the pressed sheet P 1 Is adjusted so that it does not contact the notched portion of the feed roller 142 and at least contacts the circumference after the arc start point 142a.
- FIG. 6B shows a case where a minimum number (one sheet) of cut sheets P 1 are placed on the hopper 141.
- the adjusted paper P1 is adjusted so as to contact the point 142b slightly rotated from the arc start point 142a of the paper feed roller 142.
- the contact point 142b has a circumferential length from the contact point 142b to the arc end point 142c, and the contact point 1 5 1a between the sub-roller 151 and the driven roller 1 52a from the leading end ps of the sheet P1. This is the point when the length a is the same as the interval up to.
- the leading edge ps of the uppermost layer of the cut sheet P 1 becomes the sub-roller 1 51
- the cut sheet P 1 is not released from the feed roller 142 until the contact point 15 1 a with the driven roller 1 52 a is reached. Can be delivered to the printer, eliminating paper feed errors.
- the transport section 150 includes sup rollers 15 1 for transporting paper and their driven rollers 1 52 a, 152 b, and 152 c, paper feed rollers 153 and their driven rollers 154, and discharge rollers 155. And a toothed roller 156 and detection sensors 157a and 157b for detecting paper.
- the sub-roller 15 1 is used to drive the cut paper into driven rollers 1 52 a, 152 b, and 152 c in order to output the cut paper fed from the paper feed tray 210 to the output tray 230. It is designed to be pinched together and reversed and transported in a U-shape. Also, the sub roller 1 '5 1 In order to discharge the roll-shaped paper fed from 30 to the paper output unit 230, the roll-shaped paper is nipped and transported together with the driven rollers 152c.
- the paper feed roller 153 is configured to hold the cut or conveyed rolled paper that has been reversed and conveyed together with the driven roller 154 and send it to the platen 163. I have.
- the paper discharge rollers 155 hold the paper passing through the platen 163 together with the knurled rollers 156, and discharge the paper onto the paper discharge tray 230.
- the detection sensor 157a detects the amount of conveyance of the skewed cut paper that has been fed.
- the detection sensor 157b detects the amount of conveyance of the cut paper conveyed reversely or the rolled paper conveyed at the time of cueing.
- the recording section 160 is provided with a carriage 161, a recording head 162, and the like.
- the carriage 16 1 is connected to a carriage belt (not shown), and when the carriage belt is operated by a carriage driving device (not shown), the carriage 16 is entrained by the movement of the carriage belt and guided by a guide shaft (not shown) to reciprocate. It is designed to move.
- the recording head 16 2 ejects two black ink recording heads that eject two types of black ink, and ejects six color inks: yellow, dark yellow, cyan, light cyan, magenta, and light magenta, respectively. And a plurality of color ink recording heads.
- the recording head 16 2 is provided with a pressure generating chamber and a nozzle opening connected to the pressure generating chamber. By storing ink in the pressure generating chamber and applying pressure at a predetermined pressure, the recording head 16 is directed toward the paper from the nozzle opening. It discharges ink droplets of a controlled size.
- FIG. 7 is a perspective view showing a detailed configuration of the paper supply / discharge unit 140 including a characteristic part of the present invention.
- the hopper 14 1 has a flat support surface 14 1 a that supports the surface of the cut paper, and a cross section that guides both sides of the cut paper supported by the support surface 14 1 a.
- An L-shaped right edge guide 141b and a left edge guide (guide means) 141c are provided.
- the right edge guide 14 1 b on the right as viewed from the front is fixedly attached to the right side of the holding surface 14 1 a, and the left edge guide 14 4 c on the left as viewed from the front Is slidably mounted from the left side to the right side of the support surface 141a.
- By sliding the left edge guide 14 1 c it is possible to reliably support the paper of A4 size to A2 size of the JIS standard and accurately guide both sides thereof.
- the entire bent portion of the right edge guide 1 4 1 b is attached to the right side of the cut paper.
- the edge guide (guide portion) 14 1 d which is a characteristic portion of the present invention, which is formed as a step on the inner side of the bent portion of the left edge guide 14 1 c, is guided by the cut.
- the paper is guided by partially contacting the left side of the paper. That is, the edge guide 141d is bent so that the left side of the cut sheet does not abut on the entire bent portion of the left edge guide 141c. It has a function to separate the left side of the paper cut from the curving section.
- both sides of the cut paper are in contact with all the bent portions of both edge guides 14 1 b and 14 1 c. If guided, the frictional resistance generated between both sides of the cut paper and the bends of both edge guides 14 1 b and 14 1 c becomes too large, and defective feeding such as paper breakage and jams will occur. May occur.
- the right side of the cut sheet is guided in contact with the entire bent portion of the right edge guide 141 b, and the cut sheet is guided. Since the left side is partially guided in contact with the edge guide 141d, the frictional resistance is reduced, and defective feeding such as paper breakage and jam can be prevented.
- the cut paper becomes a U-shape. It is gradually inverted. For this reason, the cut paper portion located immediately below the feed roller 144 rises and gradually approaches the cutout portion of the feed roller 142, but at the same time, the edge guide 144d The cut paper part that is in contact will also rise.
- the edge guide 144 d is formed in a substantially triangular plate shape as shown in FIG. 7, the length of the portion where the cut paper comes in contact gradually becomes shorter as it floats.
- the shape of the edge guide 141d is not limited to a substantially triangular shape, and the length of the portion that comes into contact with the edge guide 141d when the cut paper floats is gradually reduced. The same effect can be obtained even if the shape is as follows, for example, a substantially fan shape or a substantially trapezoidal shape.
- each paper feed roller 142 is inserted through both sides of a paper feed roller shaft 146 whose both ends are rotatably supported by a side frame 107, and each edge guide 144b, They are mounted on frames 141 ba and 141 ca, respectively, extending from 141 c. Further, each separation member 144 is disposed below each paper feed roller 142, and is attached to the back side of each edge guide 144b and 141c.
- the feed roller 1 4 2 and the separating member 1 4 3 arranged on the right edge guide 1 4 1 b are fixedly attached to the right side of the support surface 1 4 1 a, and the left edge guide 1 4 1
- the paper feed roller 142 and the separating member 144 arranged in c are slidably attached from the left side to the right side of the support surface 141a.
- the conventional paper feed roller is arranged to feed only one side of the cut paper, and is formed to be relatively narrow in width. Are arranged so as to feed both sides of the sheet, and have a relatively large width.
- auxiliary rollers 147 are arranged at a predetermined interval between the two paper feed rollers 142.
- a compression panel 148 having at least the same sides is inserted between the three shafts of the rollers 142 and 147. Since the auxiliary roller 147 can hold down the middle of the cut paper to be fed, the width of a relatively wide cut paper, for example, A2 size paper in JIS standard, in the width direction can be reduced. Prevents and can feed paper straight.
- FIGS. 8 to 10 are a perspective view, a front view, and a side view, respectively, showing the details of the paper feed roller 144 and the separating member 144.
- the upper surface 144 a of the separation member 144 is formed as an inclined surface, and the separation pad 149 is attached thereto.
- a separation wall 144c is formed at the boundary between the front surface 144b of the separation member 144 and the upper surface 144a. Cut out by paper feed rollers 1 4 2 When multiple sheets of paper are fed together, they are separated into one of the uppermost layers by a separation wall 144c or a separation pad 149, depending on the type, that is, the thickness.
- Separation wall 1 4 3 c, right separation pad 1 4 9 is right-top apex height, left separation pad 1 4 9 is left-top apex slightly higher than middle top apex It is formed so that it becomes.
- the reason for the formation of such a shape is that initially, the minimum gap between the top of the separation wall 144c and the peripheral surface of the paper feed roller 142 is a large number of so-called plain papers, that is, thin cuts in the gap. The distance was set so that the inserted paper did not enter.
- the height of the right end of the separation wall 1 4 3 c of the right separation pad 1 4 7 and the height of the left end of the separation wall 1 4 3 c of the left separation pad 1 4 7 By forming a separating wall 1 43 c so that it is slightly higher than the height of the top of the side, the penetration of a large number of heavy-weighted paper is prevented by the right and left edges of the separating wall 1 43 c. The side is blocked so that thin cut paper can enter smoothly even if both sides are curved upward.
- the front automatic sheet feeding type provided with the separating member 144 having the rough surface that is, the separating member 144 having the separating pad 149 adhered to the upper surface 144 a.
- the edge guide 144 d which is a characteristic part of the present invention is applied to the ink jet printer 100
- the present invention is not limited to this.
- similarly apply edge guides 141d to the front side and back side of an ink jet printer capable of automatic front paper feeding and automatic back paper feeding provided with separation members having rollers, or Edge guide 144d can be applied to an automatic paper-feed type ink-jet printer in the same way as described above with reference to the drawings. .
- FIG. 11 shows an example of an automatic front-feeding and back-feeding automatic feeder equipped with a separation member having rollers.
- FIG. 2 is a cross-sectional view illustrating an internal structure of the jet printer.
- a paper feed unit 320 is provided at an upper rear portion of the printer body 310, and a paper discharge unit 330 is provided in front of the printer body 310.
- a paper feed tray 321 capable of stacking a plurality of papers P is provided.
- the paper tray 3221 is provided with a paper support 3222 for supporting a plurality of sheets of paper P in a detachable manner.
- the above-mentioned edge guides 141 d are formed on the lower side wall of the paper feed tray 3 21. Further, below the paper feed tray 3 21, a paper feed roller 3 23 and a retard roller 3 24 facing the paper feed roller 3 23 are provided.
- FIG. 12 is a perspective view showing the periphery of the retard roller 324
- FIG. 13 is a side view of FIG. 12
- FIG. 14 is a rear perspective view of FIG.
- the feed roller 32 3 is a D-shaped roller having a cross section viewed from the side, and can pinch the paper in cooperation with the outer peripheral surface of the retard roller 3 24.
- a flat portion 3 which does not form a nip point between the portion, that is, the outer peripheral surface 3 2 3 a where the nip point N can be formed and the outer peripheral surface of the retard roller 3 2 4 2 3 b.
- the retard roller 324 is a cylindrical roller having a horizontal rotation axis, and is rotatably supported by the retard roller support frame 328.
- the retard roller support frame 3 28 receives the urging force that rotates around the support shaft 3 28 a by the action of the coil spring 3 29, so that the feed roller 3 2 It is constantly biased to the third side.
- the retard roller 3 2 4 is driven by the feed roller 3 2 3 when feeding only one sheet of paper P, but rotates when two or more sheets P are fed. Has the effect of rotating in the same direction as the paper feed roller 3 2 3 to return the lower paper P on the uppermost paper P to the upstream side in the paper feed direction.
- two rising portions 3 41 formed from a frame supporting the interleaf roller 3 23 are formed, and the paper P is formed.
- the paper is fed from the paper feed tray 3 21 side to the paper feed roller 3 23 3 through a paper guide path L formed so as to pass right above the rising section 3 41.
- the paper P is moved between the rollers 3 2 3 and 3 2 4.
- a frontage 3 4 2 is formed for entry. From the upper ends of the two rising portions 3 4 1, two frontage regulating members 3 4 3 are formed extending from both sides to the frontage 3 4 2 so as to face each other.
- the frontage restricting members 3 4 3 are provided with a contact restricting portion 3 4 4 for restricting the number of sheets of paper P guided to the frontage 3 4 2, and two contacting portions from the upper end of the contact restricting portion 3 4 4. And a paper guide surface 345 extending to the nip point N side.
- the contact regulating portion 3 4 4 is formed substantially perpendicular to the direction in which the paper is transported along the paper guide path L, and the upper end thereof and the paper feed roller 3 2 3
- a gap 3446 is formed between the outer peripheral surface 3 23 a and the outer peripheral surface 3 a so that the paper P can pass through several millimeters.
- the paper guide surface 3 4 5 is formed so as to form a convex curved surface on the upper side, and the outer circumferential surface 3 2 3 a of the paper feed roller 3 2 3 The distance from 3 4 5 is getting smaller. This allows the leading edge of the multi-fed paper P to be shifted by the action of the convex surface before the sheet is separated by the action of the feed roller 3 2 3 and the liquid roller 3 2 4.
- the pre-separation function of the paper separation in the first 3 4 can be performed.
- the paper guide surface 345 By forming such a paper guide surface 345, the leading ends of several sheets of paper P passing through the gap 346 bend downward immediately after passing through the gap 346, and the leading ends of the retard rollers 3 24 can be prevented from being bent by contacting the outer peripheral surface. Therefore, the paper guide surface 345 is formed to extend in the paper transport direction by a sufficient length so that the leading end of the paper P does not enter such an undesirable state. '
- the paper P in the paper feed tray 3 21 is taken out when the outer peripheral surface of the paper feed roller 3 23 provided below the paper feed tray 3 21 comes into frictional contact.
- the taken out paper P is multi-fed, only the uppermost sheet P is separated and fed out in cooperation with the retard roller 3 24 facing the paper feed roller 3 2 3 .
- the fed paper P reaches a paper feed roller 327 consisting of a paper feed drive roller 325 and a paper feed driven roller 322 opposed on the upper side, and is supplied with a precise paper in a recording execution process by a drive system.
- the sheet is fed to the platen 311 located downstream of the sheet feed rollers 327 while receiving the feed operation.
- the fed paper P smoothly passes over the platen 3 11, and high-quality printing is performed by the printing head 3 13 mounted on the carriage 3 12.
- the paper portion located just below the paper feed port 3 2 3 rises and gradually approaches the flat portion 3 2 3 b of the paper feed roller 3 2 3, but at the same time
- the paper portion that is in contact with the edge guide 14 1 d also rises.
- the edge guides 14 1 d are formed in the shape of a substantially triangular plate, the length of the portion where the paper abuts gradually decreases as it rises. Therefore, as the paper is fed, the frictional resistance of the paper portion contacting the edge guide 141d gradually decreases, so that the feeding accuracy can be maintained at a high level and the recording accuracy can be improved. It can be maintained in an accurate state.
- the recorded paper P is pulled out and discharged by a paper discharge roller 333 composed of a paper discharge drive roller 331 and a paper discharge toothed roller 332 facing the upper side.
- FIG. 15 is a cross-sectional view showing an internal structure of an ink jet printer capable of automatically feeding the front surface including a separation member having a roller.
- a paper cassette 410 capable of stacking a large number of sheets of paper P is removably disposed below the front of the printer body 410, and the paper P after recording is discharged.
- the paper staple force 402 is disposed above the rear of the printer body 410.
- a hopper 403 that lifts the paper P loaded in the paper feed cassette 401 and guides the paper P to the feeding path has a swing shaft 404 as a fulcrum. It is arranged so that it can swing freely.
- the above-described edge guides 141 d are formed on the side wall of the printer main body 410 on the leading edge side of the paper P lifted by the hopper 403.
- the hopper 403 that has been swung upward by the urging force of the push-up panel 405 causes the uppermost sheet P of the stacked sheets P to be positioned at the back of the sheet cassette 410. It is pressed against the pickup roller 406 arranged on the upper side. Then, the upper sheet P is pulled out of the sheet cassette 410 by the rotation of the pickup roller 406, and is fed from the sheet feeding roller 411 and the The paper is fed in the paper transport direction to the roller 4 12.
- a high friction material is attached to a portion of the hopper 403 located immediately below the pickup roller 406 to prevent the lower stacked paper P from moving.
- the paper feed roller 411 is driven to rotate in the feed rotation direction by receiving a rotational driving force from a drive motor (not shown).
- the retard roller 4 12 is rotatably supported by a shaft while having a certain rotational resistance, and receives a biasing force from the biasing means, and tends to be pressed against the paper feed roller 4 11.
- the rotation resistance of the retard roller 4 1 2 is the peripheral surface of the feed roller 4 1 1 It is set to be smaller than the frictional resistance of the paper P and larger than the frictional resistance between the papers P fed by force.
- the retard roller 4 1 1 receives the pressing force and the rotating force from the feed roller 4 1 1. 1 and 2 are driven to rotate in the feed rotation direction, and the paper P sandwiched between the paper feed roller 4 11 and the retard roller 4 12 is fed toward the paper feed roller 4 13.
- the retard roller 4 1 2 does not rotate.
- the paper P is fed with the drive rotation of the paper feed port 4 1 1, and the lower paper P stays at that position. Then, the return lever (not shown) starts the return operation, and the remaining lower-order paper P is moved into the sheet feeding force set 401.
- the paper portion located immediately below the paper feed roller 4 11 1 rises and gradually approaches the flat portion 4 1 1 b of the paper feed roller 4 11 1, but at the same time, the edge The paper part that is in contact with the guide 14 1 d also rises.
- the edge guide 14 1 d is formed in the shape of a substantially triangular plate, the length of the portion in contact with the paper P gradually becomes shorter as it rises. Therefore, as the paper P is fed, the frictional resistance of the paper portion that comes into contact with the edge guide 141d gradually decreases, so that the feeding accuracy can be maintained at a high level and the recording accuracy can be improved. It can be maintained in an accurate state. Then, recording and paper ejection are performed in the same manner as in the above-described inkjet printers 100 and 300.
- FIG. 16 is a cross-sectional side view showing a paper feed cassette provided with a separating member having claws
- FIG. 17 is a plan view thereof.
- a pair of separation claw plates 2 are arranged in the width direction of the paper so as to be movable in the direction of arrow A by a separation claw fulcrum shaft 4 integrated inside the side plate of the paper cassette 1. It is arranged.
- the separation claw driving plate 7 is rotatably mounted on a separation claw driving plate fulcrum shaft 8 which is formed on the side of the sheet feeding force set 1 following the sheet feeding force set 1.
- the separation claw driving plate 7 is connected to the separation claw plate 2 via a separation claw guide bin 3 formed integrally with the separation claw plate 2, and the separation claw driving plate 7 is supported by the separation claw driving plate fulcrum.
- the separation claw plate 2 is configured to move in the direction of arrow A when rotated about the shaft 8.
- the separation claw driving plate 7 When the paper cassette 1 is not installed in the ink jet printer, the separation claw driving plate 7 is set at the position shown in FIG. 16 by the torsion coil panel 9. Therefore, the separation claw plate 2 is movable toward the front of the paper cassette 1, and the separation claw 2-a is in a state of being stored in the front of the paper cassette 1. Become.
- the paper feed push-up plate 5 compresses the paper feed push-up panel 6 and is set at the position shown in FIG. .
- the separation claw portions 2-a of the pair of left and right separation claw plates 2 are housed inside the front surface of the paper feed cassette 1.
- the paper guide member 10 that hinders insertion when the user inserts the sheet. Therefore, the paper can be inserted from all directions without being limited to inserting paper from the rear of the paper cassette 1 as in the conventional case, and the insertion becomes smooth. Even if the paper is replenished in G1, the paper will be set securely. Also, when the paper is replenished, the leading edge of the paper does not interfere with the separation claw 2-a, and the deformation received by the paper is extremely small, which not only improves the transportability but also greatly improves the quality of the paper after recording. Is done.
- Fig. 18 shows the operation of the separation mechanism when the paper cassette 1 is installed in the ink jet printer.
- Fig. 19 shows a plan view of the separation mechanism.
- Fig. 20 shows the paper cassette 1 installed in the ink jet printer.
- FIG. When the paper feed cassette 1 is mounted on the ink jet printer 400 in the direction of the arrow shown in FIG. 18, first, the main body connecting portion 7—a of the separation claw driving plate 7 is in the paper feed cassette mounting opening of the ink jet printer 400. Abuts the separation claw set repeller 1 1 installed in the Further, at this time, the paper feed push-up plate 5 is set at the position shown in the figure, and is brought into contact with the paper feed roller 12 and the paper feed push-up panel 6 at a constant pressure.
- the pair of left and right separation claw driving plates 7 is in contact with the separation claw set lever 11 via the main body connecting portion 7-a.
- the separation claw set repeller 11 rotates the separation claw driving plate 7 against the force of the torsion coil panel 9. Therefore, the separation claw plate 2 is also slid rearward in the sheet feeding force set 1 and set.
- the separation claw plate 2 is stored in the front part of the paper cassette 1 and moves backward from the fc state, and the separation claw 2—a is indicated by an arrow in the figure.
- the paper enters the paper setting position ⁇ shown in the figure and is set with both sides of the leading edge of the paper pressed. In this manner, the separation claw plate 2 is set at an appropriate position for separating and transporting the sheets one by one, so that reliable paper feeding without double feed can be performed.
- the skew removal method differs depending on the paper thickness is that the thin cut paper has no rigidity, so the paper feed rollers 1 and 2 do not slip on the cut paper, This is because the thick cut paper has a structure in which thin cut paper is bonded, and the rollers 15 1 and 15 2 a are reversed. This is because they may be peeled off when they are exposed.
- the cut paper P is sandwiched between a sub-roller 15 1 driven by a paper feed motor (not shown) and its driven rollers 15 2 a, 15 2 b, 15 2 c to form a U-shape.
- the paper is reversed in the path, that is, conveyed in the direction opposite to the paper feeding direction.
- cueing which is the print start positioning of the cut sheet P, is performed. Is '
- the cut sheet P whose cue has been completed is nipped by a paper feed roller 153 driven by a paper feed motor (not shown) and its driven roller 154, and is conveyed to the recording section 160. Will be. Therefore, pinching of the cut sheet P by the sub-roller 15 1 and its driven rollers 15 2 a, 15 2 b, 15 2 c causes the conveyance accuracy to be degraded. As shown in B), each driven roller 15 2 a, 15 2 b, 15 2 c releases from the sub-roller 15 1.
- the transported cut paper P is sucked onto a platen 1663 by a suction pump (not shown), flattened, and recorded on a carriage 161, which is scanned by a carriage motor and timing belt (not shown).
- the control unit of the ink jet recording apparatus 100 controls the recording head 16 2 from the ink cartridges of a total of seven colors, for example, yellow, light yellow, magenta, light magenta, cyan, light cyan, and black. Supply and control the ejection timing of each color ink and the drive of the carriage 16 1 and the paper feed roller 15 3 to execute high-precision ink dot control and halftone processing.
- the cut paper P on which printing is completed is nipped by the discharge rollers 155 and the knurled rollers 156 driven by a paper feed motor (not shown), and discharged to the paper supply / discharge unit 140. Then, the sheets are stacked on the sheet discharge tray 230 of the sheet supply / discharge tray 200.
- the paper supply / discharge unit 140 of the present embodiment has the edge guide 144 d that guides the cut sheet while feeding the cut sheet while partially abutting the left side of the sheet. It is arranged. Therefore, the frictional resistance generated between the left side of the cut sheet and the edge guide 144d can be reduced, thereby preventing the occurrence of a paper feed defect such as a broken sheet or a jam. Can be done.
- the edge guide 144 d is formed integrally with the left edge guide 141 c which is slidably mounted in a direction perpendicular to the paper feeding direction as a step protruding toward the paper. Therefore, there is no need to separately provide the edge guides 141d, and the cost of component manufacturing and assembly can be reduced.
- the edge guide 14 d may be formed on the fixed right edge guide 141 b, or may be formed on both edge guides 141 b and 141 c.
- a liquid ejecting device that ejects a liquid corresponding to the intended use from a liquid ejecting head to a medium to be ejected instead of ink and adheres the liquid to the medium to be ejected is, for example, Color material injection heads used in the manufacture of color filters such as liquid crystal displays, electrode materials (conductive paste) used to form electrodes in organic EL displays and surface-emitting displays (FED), etc. Used in the manufacture of injection heads and biochips
- the present invention is also applicable to an apparatus equipped with a biological organic matter ejection head, a sample ejection head as a precision pipe, and the like.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/546,516 US20060152567A1 (en) | 2003-05-01 | 2004-04-30 | Feeding device and recording device |
EP04730726A EP1619150A4 (en) | 2003-05-01 | 2004-04-30 | FEEDING DEVICE AND RECORDING DEVICE |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-126181 | 2003-05-01 | ||
JP2003126181 | 2003-05-01 | ||
JP2004-132620 | 2004-04-28 | ||
JP2004132620A JP4581471B2 (ja) | 2003-05-01 | 2004-04-28 | 記録装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004096682A1 true WO2004096682A1 (ja) | 2004-11-11 |
Family
ID=33422087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/006364 WO2004096682A1 (ja) | 2003-05-01 | 2004-04-30 | 給送装置及び記録装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060152567A1 (ja) |
EP (1) | EP1619150A4 (ja) |
JP (1) | JP4581471B2 (ja) |
WO (1) | WO2004096682A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8180223B2 (en) * | 2006-02-03 | 2012-05-15 | Fujitsu Limited | System and method for extending reach in a passive optical network |
US20070280690A1 (en) * | 2006-06-02 | 2007-12-06 | Fujitsu Limited | System and Method for Managing Power in an Optical Network |
US7970281B2 (en) * | 2007-01-26 | 2011-06-28 | Fujitsu Limited | System and method for managing different transmission architectures in a passive optical network |
JP2010030770A (ja) * | 2008-07-30 | 2010-02-12 | Seiko Epson Corp | 給送装置及び記録装置 |
JP5594463B2 (ja) * | 2010-04-06 | 2014-09-24 | セイコーエプソン株式会社 | 記録装置 |
JP5998471B2 (ja) * | 2011-12-20 | 2016-09-28 | セイコーエプソン株式会社 | アダプター |
Citations (5)
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JPH06156750A (ja) * | 1992-11-27 | 1994-06-03 | Minolta Camera Co Ltd | 給紙装置 |
JP2000007161A (ja) * | 1998-04-24 | 2000-01-11 | Ricoh Co Ltd | 給紙トレイ |
JP2001335160A (ja) * | 2000-05-25 | 2001-12-04 | Seiko Epson Corp | 用紙ガイド,給紙装置,記録装置 |
JP2002128288A (ja) * | 2000-09-21 | 2002-05-09 | Hewlett Packard Co <Hp> | 媒体装填器インサートおよびプリンタ |
JP3092370U (ja) * | 2002-08-27 | 2003-03-07 | 船井電機株式会社 | インクジェットプリンタおよびインクジェット装置 |
Family Cites Families (7)
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JPH06345274A (ja) * | 1993-06-08 | 1994-12-20 | Fuji Xerox Co Ltd | 画像形成装置の給紙トレイ |
JPH07223739A (ja) * | 1994-02-09 | 1995-08-22 | Canon Inc | シート積載装置及び画像形成装置 |
JP3386091B2 (ja) * | 1995-09-22 | 2003-03-10 | セイコーエプソン株式会社 | プリンタ |
JPH09110181A (ja) * | 1995-10-13 | 1997-04-28 | Ricoh Co Ltd | 給紙装置 |
KR100209506B1 (ko) * | 1996-10-28 | 1999-07-15 | 윤종용 | 사무자동화기기에 있어서 용지급지대의 절환장치 |
US6332610B1 (en) * | 1999-07-12 | 2001-12-25 | Canon Kabushiki Kaisha | Sheet containing apparatus |
JP3849850B2 (ja) * | 2001-10-02 | 2006-11-22 | セイコーエプソン株式会社 | 記録装置 |
-
2004
- 2004-04-28 JP JP2004132620A patent/JP4581471B2/ja not_active Expired - Fee Related
- 2004-04-30 US US10/546,516 patent/US20060152567A1/en not_active Abandoned
- 2004-04-30 WO PCT/JP2004/006364 patent/WO2004096682A1/ja active Application Filing
- 2004-04-30 EP EP04730726A patent/EP1619150A4/en not_active Withdrawn
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JPH06156750A (ja) * | 1992-11-27 | 1994-06-03 | Minolta Camera Co Ltd | 給紙装置 |
JP2000007161A (ja) * | 1998-04-24 | 2000-01-11 | Ricoh Co Ltd | 給紙トレイ |
JP2001335160A (ja) * | 2000-05-25 | 2001-12-04 | Seiko Epson Corp | 用紙ガイド,給紙装置,記録装置 |
JP2002128288A (ja) * | 2000-09-21 | 2002-05-09 | Hewlett Packard Co <Hp> | 媒体装填器インサートおよびプリンタ |
JP3092370U (ja) * | 2002-08-27 | 2003-03-07 | 船井電機株式会社 | インクジェットプリンタおよびインクジェット装置 |
Non-Patent Citations (1)
Title |
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See also references of EP1619150A4 * |
Also Published As
Publication number | Publication date |
---|---|
JP2004352504A (ja) | 2004-12-16 |
JP4581471B2 (ja) | 2010-11-17 |
EP1619150A4 (en) | 2006-07-12 |
EP1619150A1 (en) | 2006-01-25 |
US20060152567A1 (en) | 2006-07-13 |
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