JP2006168898A - Image recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To house, with high quality, a plurality of sheet-like media to be recorded in a sheet-like stack member, in an image recording device having a cutting means. <P>SOLUTION: The image recording device comprises: a carrying means carrying a rolled medium to be recorded; a recording head recording an image on the medium carried by the carrying means; a delivery member guiding the recorded medium to the outside; the cutting means cutting the medium carried by the carrying means; and the sheet-like stack member housing the sheet-like medium cut by the cutting means. Downstream the delivery member in a carrying direction and upstream the stack member, a reverse assist means is disposed to exert the medium in a direction intersecting with a carrying passage when the cutting means cuts the medium with image. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an image recording apparatus such as a printer, a copying machine, a facsimile machine, or the like provided with cutting means for cutting a roll-shaped recording medium into a sheet.

  Conventionally, this type of image recording apparatus accommodates a roll-shaped recording medium, records image data by scanning (reciprocating operation) of the recording head, and cuts the recording medium on which the image data is recorded for each page. There is something to do. When the image data is input, the recording medium is sent to the platen, and the recording head reciprocates above the recording medium. An image for one scan is recorded by scanning (reciprocating operation) of the recording head, the recording medium is intermittently fed at a predetermined pitch by the conveyance roller, and then the recording head is scanned again to record an image for one scanning. This is repeated to record the image on the entire page. The recorded portion of the recording medium is guided to a paper discharge member provided outside the apparatus, and is cut into pages by a cutting unit. The recording medium cut for each page is stored in a stack member provided below the paper discharge member.

  In the above series of operations, the following configuration is disclosed for the stack member that stores the recording medium cut for each page.

2. Description of the Related Art Conventionally, a large-sized printer includes a paper feeding unit that feeds printing paper from above, a printing unit that performs printing while transporting the fed printing paper, and a paper ejection unit that discharges diagonally downward after printing. In the printer, the paper discharge receiving device that receives the discharged print paper is configured to be able to switch between a state of receiving toward the rear side and a state of receiving toward the front side according to the length of the print paper. Has been. (For example, refer to Patent Document 1). In addition, the paper discharge stacker that receives the recording material that is cut by the cutter device and falls downward includes a first paper storage unit provided on the side close to the discharge roller and a second paper provided on the side far from the discharge roller. A recording material that has a storage portion and is cut to a length shorter than a predetermined length falls to the first paper storage portion, and a recording material that is cut to a length longer than a predetermined length falls to the second paper storage portion. Configured to fall. (For example, refer to Patent Document 2).
JP 2001-130814 A JP 2003-252514 A

  However, the conventional technology (for example, refer to Patent Document 1) is configured to be able to switch between a state of receiving toward the rear side and a state of receiving toward the front side according to the length of the printing paper. However, it is not considered to store a plurality of sheet-like recording media with high quality, and the recording medium cut into a sheet shape is rolled in a stack member due to curl wrinkles etc. of the recording medium. There is a problem that a plurality of sheet-like recording media cannot be accommodated when they are curled up and stored, or when dealing with many types of media. Further, in the prior art (see, for example, Patent Document 2), a first paper storage unit provided on the paper discharge stacker on the side close to the discharge roller, and a second paper storage unit provided on the side far from the discharge roller, Depending on whether the recording material is shorter or longer than a predetermined length, it is configured to drop the recording material into different paper storage portions, and those with long cut length and those with short cut length Although it is possible to prevent the print quality from deteriorating in the same paper storage unit, it is not considered to store multiple sheets of recording media with high quality for those with a long cut length. When a recording medium cut into a sheet is rolled up and stored in a stack member by a curl hook or the like of the recording medium, or when it is compatible with many types of media, a plurality of sheets Recording media There is a problem that it is not possible to accommodate the.

  Therefore, an object of the present invention is to use a case where a sheet-like recording medium cut by a cutting means is stored in a roll shape in a stack member by a curl hook or the like possessed by the recording medium, or many media types. Therefore, an object of the present invention is to provide an image recording apparatus capable of storing a plurality of sheet-like recording media in a sheet-like stack member with good quality.

  In order to solve the above problems, the following means are provided.

  Conveying means for conveying a roll-shaped recording medium, a recording head for recording an image on the recording medium conveyed by the conveying means, and guiding the recording medium after image recording to the outside A sheet discharge member, a cutting unit that cuts the recording medium conveyed by the conveying unit, and a sheet-like stack member that stores the sheet-like recording medium cut by the cutting unit, In the image recording apparatus, the paper discharge member may be downstream in the transport direction from the paper discharge member and upstream in the transport direction from the stack member when the recording medium is cut after the image is recorded by the cutting unit. And a reversing assist means for projecting the recording medium in a direction intersecting the transport path.

  As a result, after the recording medium is cut by the cutting means, the recording medium is reversed and folded back to the front side by the reversing assist means regardless of the curl wrinkles or media type of the recording medium on the upper surface of the stack member. Since it is stored in the member, a plurality of sheet-like recording media can be stored with high quality.

  Further, the reverse assist means is located outside the conveyance path during image recording by the recording head.

  In this case, the reversing assist means does not affect the conveyance of the recording medium, and the recording medium before being cut by the cutting means can be reliably conveyed to the stack member.

  Also, a conveying means for conveying a roll-shaped recording medium, a recording head for recording an image on the recording medium conveyed by the conveying means, and the recording medium after image recording are externally provided. A paper discharge member for guiding; a cutting means for cutting the recording medium transported by the transporting means; and a sheet-shaped stack member for storing the sheet-shaped recording medium cut by the cutting means; The stack includes a stack member moving unit that moves the stack member in a direction intersecting the transport direction when the recording medium is cut after the image is recorded by the cutting unit.

  As a result, after the recording medium is cut by the cutting means, the recording medium is turned upside down on the upper surface of the stack member regardless of the curl wrinkles or media type of the recording medium, and stored in the stack member. Therefore, a plurality of sheet-like recording media can be stored with high quality.

  Furthermore, the upper surface of the stack member is positioned in front of the downstream side in the transport direction of the paper discharge member during image recording by the recording head.

  In this case, the stack member does not affect the conveyance of the recording medium, and the recording medium before being cut by the cutting means can be reliably conveyed to the stack member.

  The stack member includes a stopper member that presses the upstream side in the transport direction of the recording medium when the recording medium is cut after the image is recorded by the cutting unit.

  In this case, the stopper member prevents the upstream side in the transport direction of the recording medium from being rounded into a roll shape due to curl or the like of the recording medium, so that the protrusion amount of the reverse assist means and the movement amount of the stack member by the stack member moving means Even in a state where there is little, it is possible to reliably store a plurality of sheet-like recording media with high quality.

  According to the image recording apparatus of the present invention, since the reversal assist member cuts the recording medium with the recording medium protruding from the upper surface of the stack member, the recording medium cut into a sheet shape is reversed around the turning point. The recording medium is stored in a folded state in a stack member and is not stored in a roll shape in the stack member, and a recording medium cut into a plurality of sheets can be stored with high quality.

  Further, since the reverse assist member is moved to a position outside the transport path during image recording, the reverse assist member does not affect the transport of the recording medium, and the recording medium before cutting is reliably stacked. Can be conveyed.

  In addition, since the upper surface of the stack member is cut with the recorded portion of the recording medium being pressed, the recording medium cut into a sheet shape is reversed around the folding point, and the stack member is folded back. Thus, the recording medium cut into a plurality of sheets can be stored with high quality without being rolled and stored in the stack member.

  Also, during image recording, the top surface of the stack member is moved to a position outside the transport path, so that the top surface of the stack member does not affect the transport of the recording medium, and the recording medium before cutting is reliably It can be conveyed to a stack member.

  The stopper member prevents the upstream side in the conveyance direction of the recording medium from being rounded into a roll shape due to a curl hook or the like of the recording medium, so that even when the protrusion amount of the reverse assist means and the movement amount of the upper surface of the stack member are small, The recording medium can be reversed and stored in the stack member in a folded state.

  Next, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a perspective view of the main part when the present invention is applied to an ink jet printer.

  FIG. 2 is a cross-sectional view showing the relationship between the reverse assist member, the stack member, and the recording medium during image recording.

  FIG. 3 is a cross-sectional view showing the relationship between the reverse assisting member, the stack member, and the recording medium at the time of cutting.

  FIG. 4 is a cross-sectional view showing a state in which the recording medium is stored in the stack member.

  The printer shown in FIG. 1 is a serial type inkjet printer, and a series of operations from when a recording medium is fed to when it is discharged onto a stack member will be described. First, the recording medium 101 is fed by the conveying roller 3, the gap between the recording head 1 as the recording means and the recording medium 101 is guaranteed, and the upper part of the platen 4 which also serves as the chassis of the printer main body is placed on the recording head. 1 reciprocates along the axis of the rail 2. When an image is recorded by the forward or backward movement of one scan of the recording head 1, the conveyance roller 3 intermittently feeds the recording medium 101 in the direction of arrow A at a predetermined pitch, and then the recording head 1 is moved again. Move it to record an image. This is repeated to record an image on the entire page. The recorded portion 101a of the recording medium is guided to the paper discharge guide 7 and discharged outside the printer.

  When the image recording is completed, the recording medium 101 is conveyed to a predetermined cutting position by the conveying roller 3. The motor 30 is driven by the signal of the cutting operation, the round blade unit 10 is moved in the direction of the arrow B from the left side, and moves to the right side to the position 10a after cutting. At this time, cutting is performed along the cut line 103, and the recorded portion 101a on the downstream side in the transport direction (the direction of arrow A) is cut off. The cut line 103 coincides with the cutting edge of the fixed blade 6. The recording medium 102 cut into a sheet is discharged to the stack member 8 disposed below the cutting device. The relationship between the sheet passing surface of the platen 4 and the upper surface of the fixed blade 6 is slightly lower than the upper surface of the fixed blade 6, and the relationship between the upper surface of the fixed blade 6 and the upper surface of the discharge guide 7 is the discharge guide 7. The top surface of is slightly lower. Therefore, these are arranged gradually lower than the direction in which the recording medium 101 is conveyed.

  Next, the paper discharge guide 7 will be described with reference to FIGS. 1, 2, 3, and 4. The paper discharge guide 7 is arranged on the downstream side of the cut line 103 in the conveyance direction of the recording medium 101 (in the direction of arrow A), and guides for conveying the recording medium 101 from the recording unit of the printer to the outside. It has become. Further, the cover also covers a roll paper holder (not shown) that accommodates a roll-shaped recording medium. The reversal assist member 40 is disposed downstream of the paper discharge guide 7 in the transport direction (in the direction of arrow A) and at a position outside the transport path, and when cutting the recorded portion 101a of the recording medium. Then, it slides in the direction of arrow D by a motor and a rack (not shown), moves to the position 40a of the reverse assist member when cutting, and the recording medium 102 cut into a sheet shape is reversed on the upper surface 8a of the stack member. It is for folding and storing in the stack member 8. The protrusion amount X1 of the reverse assist member 40 is larger than the distance Y1 between the paper discharge guide 7 and the upper surface 8a of the stack member. That is, the protrusion amount X1 of the inversion assist member 40 is slid by an amount that satisfies X1 ≧ Y1. At that time, the overlap amount Y2 between the upper surface 8a of the stack member and the recorded portion 101a of the recording medium is 0 to 100 mm, preferably 10 to 50 mm.

  Next, with reference to FIG. 1, FIG. 2, FIG. 3 and FIG. 4, the operation when the recording medium 102 on which the image has been recorded cut into a sheet shape is stored in the stack member 8 will be described. When the image is recorded on the entire page, the recording medium 101 is conveyed to a predetermined cutting position by the conveying roller 3. At this time, the recorded portion 101a of the recording medium is in the state shown in FIG. Next, the reverse assist member 40 is slid in the direction of arrow D and moved to the position 40a of the reverse assist member when cutting. At this time, the recorded portion 101a of the recording medium is protruded as shown in FIG. 3, and the overlap amount Y2 between the upper surface 8a of the stack member and the recorded portion 101a of the recording medium is Y2 ≧ 0. It becomes. Next, by moving the round blade unit 10 from the left side in the direction of arrow B, the fixed blade 6 and the round blade unit 10 are cut at the position of the cut line 103. The recording medium 102 cut into a sheet shape is reversed in the direction of arrow F around the folding point 41, is folded as shown in FIG. 4, and is stored in the stack member 8. When the cutting of the recorded portion 101a of the recording medium is completed, the round blade unit 10 is moved in the direction of arrow C to the home position where the position is detected by the sensor 34. Next, the reverse assist member 40 is slid in the direction of arrow E and moved to a position outside the transport path.

  In this embodiment, the reverse assisting member 40 is slid and moved to protrude the recorded portion 101a of the recording medium. However, by rotating the reverse assisting member 40, the recorded portion 101a of the recording medium. You may stick out. Further, since the leading end side 101b of the recorded portion of the recording medium is not regulated at the time of cutting, the recording medium 102 cut into a sheet shape by a curl hook is curled and stored in a roll shape in the stack member 8. In order to prevent this, the protrusion amount X1 of the reversal assist member 40 is slid by an amount that satisfies X1 ≧ Y1, and the upper surface 8a of the stack member and the recorded portion 101a of the recording medium overlap. When the stopper member 42 that restricts the leading end side 101b of the recorded portion of the recording medium at the time of cutting is provided, the upper surface 8a of the stack member and the recorded portion 101a of the recording medium need not overlap. The protrusion amount X1 of the inversion assist member 40 may be slid by an amount satisfying (Y1-30 mm) <X1 <Y1.

  As described above, in the case of this embodiment, the reversing assist member 40 is cut with the recorded portion 101a of the recording medium protruding from the upper surface 8a of the stack member. 102 is inverted in the direction of the arrow F around the folding point 41 and is stored in the stack member 8 in a folded state. The recording medium 102 cut into a shape can be stored with high quality. Further, during the image recording, the reversal assist member 40 is moved to a position outside the transport path, so that the reversal assist member 40 does not affect the transport of the recording medium 101 and the recording medium 101 before cutting is removed. It can be reliably conveyed to the stack member 8.

(Second embodiment)
FIG. 5 is a cross-sectional view showing the relationship among the paper discharge member, stack member, and recording medium during image recording.

  FIG. 6 is a cross-sectional view showing the relationship among the paper discharge member, stack member, and recording medium at the time of cutting.

  FIG. 7 is a cross-sectional view showing a state in which the recording medium is stored in the stack member.

  The stack member 9 in this embodiment will be described with reference to FIGS. 1, 5, 6, and 7. The stack member 9 is for storing the recording medium 102 cut into a sheet shape, and is disposed below the cutting device. When the recorded portion 101a of the recording medium is cut, the upper surface 9a of the stack member is rotated in the direction of arrow G around the fulcrum 43 by a stack member moving means composed of a cam and a motor (not shown). Then, the recording medium 102 is moved to a position 9b on the upper surface 9a of the stack member at the time of cutting, and the recording medium 102 cut into a sheet shape is reversed and folded on the upper surface 9a of the stack member and stored in the stack member 9. ing. The movement amount X2 of the upper surface 9a of the stack member is larger than the distance Y3 between the paper discharge guide 7 and the upper surface 9a of the stack member. That is, the movement amount X2 of the upper surface 9a of the stack member is rotated by an amount that satisfies X2 ≧ Y3. At this time, the overlap amount Y4 between the upper surface 9b of the stack member and the recorded portion 101a of the recording medium is 0 to 100 mm, preferably 10 to 50 mm.

  Next, with reference to FIG. 1, FIG. 5, FIG. 6, and FIG. 7, the operation when the recording medium 102 on which the image has been recorded cut into a sheet shape is stored in the stack member 9 will be described. When the image is recorded on the entire page, the recording medium 101 is conveyed to a predetermined cutting position by the conveying roller 3. At this time, the recorded portion 101a of the recording medium is in the state shown in FIG. Next, the upper surface 9a of the stack member is rotated in the direction of arrow G, and moved to a position 9b on the upper surface 9a of the stack member when cutting. At this time, the recorded portion 101a of the recording medium is pressed by the stack member as shown in FIG. 6, and the overlap amount Y4 between the upper surface 9b of the stack member and the recorded portion 101a of the recording medium is Y4 ≧ 0. Next, by moving the round blade unit 10 from the left side in the direction of arrow B, the fixed blade 6 and the round blade unit 10 are cut at the position of the cut line 103. The recording medium 102 cut into a sheet shape is reversed in the direction of the arrow I around the turning point 44, turned back as shown in FIG. 7, and stored in the stack member 9. When the cutting of the recorded portion 101a of the recording medium is completed, the round blade unit 10 is moved in the direction of arrow C to the home position where the position is detected by the sensor 34. Next, the upper surface 9a of the stack member is rotated in the direction of arrow H and moved to a position outside the transport path.

  In the present embodiment, the upper surface 9a of the stack member is rotated and moved so that the recorded portion 101a of the recording medium is pushed by the stack member 9, but the upper surface 9a of the stack member is slid. The recorded portion 101a of the recording medium may be pushed by the stack member 9. Further, since the leading end side 101b of the recorded portion of the recording medium is not regulated at the time of cutting, the recording medium 102 cut into a sheet shape by a curl hook is curled and stored in a roll shape within the stack member 9. In order to prevent this, the movement amount X2 of the upper surface 9a of the stack member is rotated by an amount satisfying X2 ≧ Y3 so that the upper surface 9b of the stack member and the recorded portion 101a of the recording medium overlap. When the stopper member 45 that restricts the leading end side 101b of the recorded portion of the recording medium at the time of cutting is provided, the upper surface 9a of the stack member and the recorded portion 101a of the recording medium need not overlap. The movement amount X2 of the upper surface 9a of the stack member may be rotated by an amount satisfying (Y3-30 mm) <X2 <Y3.

  As described above, in the case of the present embodiment, the recording medium 102 cut into a sheet shape has a folding point because the upper surface 9a of the stack member is cut with the recorded portion 101a of the recording medium being pressed. Inverted in the direction of arrow I with 44 as the center, stored in the stack member 9 in a folded state, and rolled into a stack in the stack member 9 and cut into a plurality of sheets. The recording medium 102 can be stored with high quality. In addition, since the upper surface 9a of the stack member is moved to a position outside the transport path during image recording, the upper surface 9a of the stack member does not affect the transport of the recording medium 101.

It is a principal part perspective view at the time of applying this invention to an inkjet printer. FIG. 5 is a cross-sectional view illustrating a relationship among a reverse assist member, a stack member, and a recording medium during image recording. FIG. 6 is a cross-sectional view showing a relationship among a reverse assisting member, a stack member, and a recording medium during cutting. It is sectional drawing which shows the accommodation state of the recording medium to a stack member. FIG. 5 is a cross-sectional view illustrating a relationship among a paper discharge member, a stack member, and a recording medium during image recording. FIG. 6 is a cross-sectional view illustrating a relationship among a paper discharge member, a stack member, and a recording medium at the time of cutting. FIG. 6 is a cross-sectional view illustrating a relationship among a paper discharge member, a stack member, and a recording medium at the time of cutting.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Recording head 2 Rail 3 Conveyance roller 4 Platen 5 Frame 6 Fixed blade 7 Paper discharge guide 8 Stack member 8a Upper surface of stack member 9 Stack member, 9a: Upper surface of stack member 9b Position of upper surface of stack member when cutting 10 Round Blade unit, 10a: position after cutting 20 round blade holder 30 motor 31 driving pulley 32 driven pulley 33 wire 34, 35 sensor.

40 Reverse assist member 40a Position of reverse assist member when cutting 41, 44 Turn-back point 42, 45 Stopper member.

43 fulcrum 101 recording medium 101a recorded portion 101b leading end side of recorded portion 102 recording medium cut into a sheet shape 103 cut line A transport direction B cutting direction C return direction D ejection direction E return direction F reverse direction G rotation Direction H Return direction I Reverse direction X1 Protrusion amount X2 Movement amount Y1, Y3 Distance between discharge guide and top surface of stack member Y2, Y4 Overlap amount between top surface of stack member and recorded portion of recording medium

Claims (5)

Conveying means for conveying a roll-shaped recording medium, a recording head for recording an image on the recording medium conveyed by the conveying means, and guiding the recording medium after image recording to the outside A sheet discharge member, a cutting unit that cuts the recording medium conveyed by the conveying unit, and a sheet-like stack member that stores the sheet-like recording medium cut by the cutting unit, In an image recording apparatus having
When the recording medium is cut after the image is recorded by the cutting unit, the paper discharge member is on the downstream side in the transport direction with respect to the paper discharge member and on the upstream side in the transport direction with respect to the stack member. An image recording apparatus comprising: a reversing assist unit that protrudes in a direction intersecting the conveyance path.   The image recording apparatus according to claim 1, wherein the reversing assist unit is located outside a conveyance path during image recording by the recording head. Conveying means for conveying a roll-shaped recording medium, a recording head for recording an image on the recording medium conveyed by the conveying means, and guiding the recording medium after image recording to the outside A sheet discharge member, a cutting unit that cuts the recording medium conveyed by the conveying unit, and a sheet-like stack member that stores the sheet-like recording medium cut by the cutting unit, In an image recording apparatus having
An image recording apparatus comprising: stack member moving means for moving the stack member in a direction intersecting a transport direction when the recording medium is cut after the image is recorded by the cutting means.   The image recording apparatus according to claim 3, wherein an upper surface of the stack member is positioned in front of a downstream side in a conveyance direction of the paper discharge member during image recording by the recording head.   4. The image according to claim 1, wherein the stack member has a stopper member that presses the upstream side in the conveyance direction of the recording medium when the recording medium is cut after the image is recorded by the cutting unit. Recording device.

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