JP5089961B2 - Document reading apparatus and image forming apparatus having the same - Google Patents

Description

  The present invention relates to a document reading device that reads a document while conveying the documents one by one, and an image forming apparatus including the document reading device.

  A document reading device that automatically reads a document one by one is installed at the top of an image forming apparatus such as a copying machine. The document reading apparatus includes a document feeding unit that feeds a document, a transport roller that transports documents one by one from the document feeding unit, a document reading unit that reads a document transported by the transport roller, The apparatus includes a document discharge unit that discharges the read document.

  By the way, various proposals regarding this type of document reading apparatus have been made so far. For example, in Patent Document 1, an opening for visually recognizing a document is formed in an upper portion of a document feeding direction front end portion in a document setting portion, and the front end portion of the document is visually confirmed from above even when the document is set. A proposal has been made so that

  Further, in Patent Document 2, in a document reading apparatus in which a paper feed tray and a paper discharge tray are arranged one above the other, a portion where the lower paper discharge tray can be visually recognized is part of the upper paper feed tray. Proposed to make this part transparent.

Further, Patent Document 3 discloses that a pressure plate portion is hinged to a pressure plate body for pressing a document against a contact glass surface on the apparatus main body side, and the pressure plate is attached to a hinge portion even when the pressure plate portion is left on the pressure plate main body. Proposals have been made to rotate the fulcrum to open it, and to open the part in the vicinity of the document set reference position so that it can be seen.
Japanese Utility Model Publication No. 5-041257 Japanese Patent No. 3622049 Japanese Patent Laid-Open No. 7-219073

  However, in the configurations proposed in Patent Documents 1 to 3, it can be confirmed whether or not the document is set correctly. However, when the documents are aligned by aligning with the cursor provided in the document reading device. The document may be kinked or the document may be slightly tilted. Finally, it is necessary to visually check whether the document is set correctly.

  In addition, a short user or a user using a wheelchair cannot confirm the setting state of the document on the document feeding unit from above, and the document is horizontally placed on the document feeding unit from the front side. There was a problem that could not be set.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and the object of the present invention is to read a document that can set a document even from the operation side and can visually check the set state of the document from the operation side. The present invention provides an apparatus and an image forming apparatus including the apparatus.

In order to achieve the above object, the invention described in claim 1 is directed to a document feeder having a pair of side cursors for aligning the width direction of a placed document, and conveying a document one by one from the document feeder. In a document reading apparatus having a transport roller, a document reading unit for reading a document transported by the transport roller, and a document discharge unit for discharging the read document, the document feeding unit is orthogonal to the document transport direction A notch for confirming the front end of the document placed on the document feeder from the operation side is formed on the wall surface on the operation side .

According to a third aspect of the present invention, in the first aspect, characterized in that at least one of the previous SL pair of side cursor is configured to be able to defeat horizontally.

The invention according to claim 3 is characterized in that, in the invention according to claim 2 , one of the pair of side cursors on the user side falls down to the user side.

The invention according to claim 4 is the invention according to any one of claims 1 to 3 , wherein a transparent window or an opening is formed on at least one of the pair of side cursors on the user side.

According to a fifth aspect of the present invention, an image forming apparatus is configured by including the document reading device according to any one of the first to fourth aspects at an upper portion of a main body.

  According to the first aspect of the present invention, even a short user or a user using a wheelchair can set a document through a notch formed on the operation side wall of the document feeder. The state can be visually confirmed from the operation side.

According to the invention of claim 2 Symbol placement, even users who are using shorty user and wheelchairs, by defeating one of the pair of side cursor provided on the document feeding unit horizontally The original can be set in the horizontal direction, and the set original can be visually confirmed from the operation side through a notch formed on the operation side wall of the original feeding unit.

According to the third aspect of the present invention, it is possible to set the document in the horizontal direction from the operation side by tilting one of the pair of side cursors provided on the document feeder to the user side. .

According to the fourth aspect of the present invention, it is possible to visually confirm the setting state of the document on the document feeding unit even from the side through the transparent window or opening formed in the side cursor on the user side. it can.

According to the fifth aspect of the present invention, it is possible to set a document from the operation side to the document feeding unit of the document reading apparatus installed on the upper part of the image forming apparatus main body, and to change the current setting state from the operation side. It can be confirmed visually.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a perspective view of an image forming apparatus according to the present invention. A document reading apparatus 3 according to the present invention is installed on an upper portion of a main body 2 of the illustrated image forming apparatus 1, and a front side (front side) thereof. An operation panel 4 is arranged in the area.

  A manual feed tray 5 is provided on the upper right side of the image forming apparatus main body 2, and an opening below the manual feed tray 5 is covered with a right cover 6. The manual feed tray 5 is provided with an auxiliary tray 7 that can be taken in and out according to the size of the paper set in the manual feed tray 5 and a pair of slidable side cursors 8 for aligning the width direction of the set paper. Yes.

  On the other hand, a paper discharge tray 9 is provided at the upper part of the right side surface of the image forming apparatus main body 2. A plurality of paper feed cassettes 10, 11, 12 and 13 are provided in multiple stages.

  Next, an embodiment of the document reading device 3 according to the present invention will be described with reference to the accompanying drawings.

<Embodiment 1>
FIG. 2 is a front sectional view of a main part of the document reading apparatus according to the first embodiment of the present invention. The document reading apparatus 3 shown in FIG. 2 includes a document feeding unit 14 on which a document G is set. In the document transport direction from the paper feed unit 14, a paper feed roller 15 and a separation roller pair 16 for feeding the original G set on the document paper feed unit 14 one by one, a transport roller pair 17 for transporting the document G, and a document G A conveyance drum 19 that is sandwiched between the conveyance rollers 18 and reverses the front and back surfaces thereof and the conveyance direction, and a document G separated from the conveyance drum 19 is supplied to a document discharge section 20 disposed below the document feeding section 14. Are provided with a pair of discharge rollers 21 and 22 for discharging and discharging. The document feeder 14 is provided with a pair of side cursors 23 (only one is shown in FIG. 2) for aligning the width direction of the set document G so as to be slidable in the direction perpendicular to the paper surface of FIG. Yes.

  A guide member 24 for guiding the document G is disposed below the transport drum 19, and the document G is optical scanning (not shown) built in the image forming apparatus main body 2 when the document G passes through the guide member 24. An image of the surface is read by the system. Further, the image on the back side of the document G is read by a contact image sensor (CIS) 25 provided on the downstream side of the guide member 24. The original G from which the image has been read in this way is discharged to the original discharge unit 20 by the discharge roller pair 21 and 22 as described above, and the image reading operation for one original G is completed. The same image reading operation is repeated for the number G of sheets.

  Thus, in the present embodiment, a notch 26 a is formed in the wall surface 26 on the operation side of the document feeder 14, and the use of the pair of side cursors 23 provided in the document feeder 14 is used. A transparent window 27 is formed in the side cursor 23 on the person side (near side).

  Therefore, according to the present embodiment, even a short user or a user using a wheelchair is provided with the notch 26 a formed on the operation-side wall surface 26 of the document feeder 14. The set state of the original G can be visually confirmed from the operation side. In particular, in the present embodiment, since the transparent window 23a is formed in the side cursor 23 on the user side (near side), the document G is set on the document feeder 14 via the transparent window 23a even from the side. It can be confirmed visually.

<Embodiment 2>
Next, a second embodiment of the document reading device 3 according to the present invention will be described with reference to FIGS.

  3 is a perspective view of a document feeder of the document reading apparatus according to the present embodiment, FIG. 4 is a partial front view of the document feeder, and FIG. 5 is a perspective view of a side cursor of the document feeder. 6 is a front view of the vertical portion of the side cursor on the operation side, FIG. 7 is a view in the direction of arrow A in FIG. 6, FIG. 8 is a cross-sectional view along the line BB in FIG. FIG. 10 is a cross-sectional view taken along the line CC of FIG.

  In the present embodiment, the side cursor 23 on the user side of the pair of side cursors 23 provided in the document feeding unit 14 of the document reading device 3 is configured to fall to the user side (front side). The side cursor 23 is characterized in that two rectangular openings 28 are formed, and the other configuration is the same as that of the first embodiment.

  Details of the configuration of the side cursor 23 on the user side will be described with reference to FIGS.

  The side cursor 23 on the user side is composed of a horizontal portion 23A and a vertical portion 23B whose lower end portion is rotatably connected to the horizontal portion 23A. The vertical portion 23B is shown in FIG. As shown in FIG. 5, when standing upright and setting the document G, it can be tilted to the user side (front side) as shown in FIG.

  Three legs 23a, 23b, and 23c are formed on the vertical portion 23B of the side cursor 23, and the opening 28 is formed between the legs 23a to 23c. Further, as shown in FIG. 8, a fitting groove 29 on a circular hole is formed in the lower inner surface of the leg portions 23a, 23c at both ends, and a circular hole shape is formed on one surface of the central leg portion 23b. The fitting groove 30 is formed. Here, the fitting groove 30 of the center leg portion 23b is thick with respect to a line (center of rotation of the vertical portion 23B) connecting the centers of the fitting grooves 29 formed in the leg portions 23a and 23c at both ends. It is formed at a position offset by a predetermined amount (the same amount as ε shown in FIG. 10) in the direction (perpendicular to the plane of FIG. 8).

  On the other hand, at one end on the long side of the horizontal portion 23A of the side cursor 23, as shown in FIG. 9, the distance between the legs 23a, 23b, 23c of the vertical portion 23B (the width of the opening 28) is approximately the same width. The two convex portions 23d, 23e are integrally formed, and concave portions 23f, 23g, 23h for fitting the leg portions 23a-23c of the vertical portion 23B are formed on both sides of each convex portion 23d, 23e. Has been. A cylindrical fitting projection 31 is formed on each outer end surface of the convex portions 23d and 23e, and a cylindrical fitting projection 32 is also formed on the inner end surface of one convex portion 23e. Here, the fitting protrusion 32 is shown in FIG. 10 in the thickness direction with respect to a line (center of rotation of the vertical portion 23B) connecting the axial centers of the fitting protrusions 31 formed on the both convex portions 23d and 23e. It is formed at a position offset by ε.

  Thus, the side cursor 23 is formed in the leg portions 23a to 23c of the vertical portion 23B while the leg portions 23a, 23b, and 23c of the vertical portion 23B are fitted into the recess portions 23f, 23g, and 23h of the horizontal portion 23A, respectively. The fitting portions 29 and 30 are assembled by fitting the fitting projections 31 and 32 of the vertical portion 23A into the fitting portions 29 and 30, respectively, and the vertical portion 23B has a fitting portion between the fitting groove 29 and the fitting projection 31 on the horizontal portion 23A. It is pivotally connected as a center.

  In the document reader 3 having the document feeder 14 configured as described above, for example, when a short user or a user using a wheelchair sets the document G in the document feeder 14. As shown in FIG. 3, the vertical portion 23B of the side cursor 23 on the user side is tilted forward. Then, the user can set the document G in the horizontal direction from the operation side.

  Then, when the document G is set on the document feeder 14 as described above, the vertical portion 23B of the side cursor 23 on the user side is raised in the direction of the arrow in FIG. 3, and this is vertical as shown in FIGS. Stand up. At this time, the fitting protrusion 32 formed on the convex portion 23e of the horizontal portion 23A is fitted into the fitting groove 30 formed on the central leg portion 23b of the vertical portion 23B. Since the groove 30 and the fitting protrusion 32 are formed at a position offset by ε shown in FIG. 10 from the rotation center of the vertical portion 23B, the vertical portion 23B is held in a vertical state, and its fall is prevented.

  As described above, when the vertical portion 23B of the side cursor 23 stands vertically, the pair of side cursors 23 are simultaneously slid to align the width direction of the document G. At this time, as shown in FIG. 4, the setting state of the document G on the document feeder 14 is visually observed from the side through two openings 28 formed in the vertical portion 23B of the cursor 23 on the user side. Can be confirmed.

  As described above, according to the present embodiment, it is possible to set the original G even from the operation side and to obtain an effect that the setting state of the original G can be visually confirmed from the operation side.

1 is a perspective view of an image forming apparatus according to the present invention. FIG. 3 is a front sectional view of a main part of the document reading apparatus according to Embodiment 1 of the present invention. FIG. 6 is a perspective view of a document feeding unit of a document reading apparatus according to Embodiment 2 of the present invention. FIG. 6 is a partial front view of a document feeding unit of a document reading apparatus according to Embodiment 2 of the present invention. It is a perspective view of the side cursor of the document reading device according to Embodiment 2 of the present invention. It is a front view of the vertical part of the side cursor on the operation side of the document reading apparatus according to the second embodiment of the present invention. It is a figure of the arrow A direction of FIG. It is the BB sectional view taken on the line of FIG. It is a top view of the horizontal part of the side cursor by the side of the operation of the original document reading apparatus concerning Embodiment 2 of this invention. It is CC sectional view taken on the line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Image forming apparatus 2 Image forming apparatus main body 3 Document reading apparatus 4 Operation panel 5 Manual feed tray 6 Right cover 7 Auxiliary tray 8 Side cursor 9 Paper discharge tray 10-13 Paper feed cassette 14 Document feed section 15 Paper feed roller 16 Separation roller Pair 17 Conveying roller pair 18 Conveying roller 19 Conveying drum 20 Original discharge unit 21, 22 Discharge roller pair 23 Side cursor 23A Side cursor horizontal portion 23B Side cursor vertical portion 23a to 23c Side cursor leg 23d, 23e Side cursor Convex part 23f-23h Concave part of side cursor 24 Guide member 25 Contact image sensor 26 Wall surface 26a on the operation side of the document feeding part 27 Notch on the wall surface 27 Transparent window of the side cursor 28 Opening part 29, 30 of the side cursor Fitting groove 31 , 32 Mating protrusion G

Claims (5)

A document feeder provided with a pair of side cursors for aligning the width direction of the placed document, a transport roller for transporting documents one by one from the document feeder, and a document transported by the transport roller is read. In a document reading apparatus having a document reading unit and a document discharge unit for discharging a read document,
A document reading characterized in that a notch for confirming the front end of the document placed on the document feeder from the operation side is formed on the wall surface on the operation side orthogonal to the document transport direction of the document feeder. apparatus.
2. The document reading apparatus according to claim 1, wherein at least one of the pair of side cursors can be tilted horizontally . 3. The document reading apparatus according to claim 2, wherein one of the pair of side cursors on the user side falls down to the user side. Document reading apparatus according to any one of claims 1 to 3, characterized in that the formation of the least transparent window or opening in one of the user's side of the pair of side cursor. An image forming apparatus comprising the document reading apparatus according to the upper body in any one of claims 1-4.

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