Image reading device, recording device, and control method for image reading device

Abstract

To facilitate checking of a document ejected below a document installation tray.SOLUTION: A control unit controls a reading unit and an ejection unit. When a document is placed on a document placement unit, a conveyance path conveys the document, and the reading unit reads an image of the document. When the ejection unit ejects the document for which the reading performed by the reading unit is completed, a document receiving unit receives the document ejected by the ejection unit. The document receiving unit has a first area overlapping the document placement unit when seen in the vertical direction, and a second area not overlapping the document placement unit when seen in the vertical direction. The ejection unit ejects the document so that at least part of the document is placed in the second area.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an image reading device, a recording device, and a control method for an image reading device.

Background Art

[0002] As an image reading device that combines a flatbed scanner and an ADF, the one disclosed in Patent Document 1 is known. In such an image reading device, a document is set on a document placement tray 142 integrated with a document feeder 141 placed on the upper surface of the flatbed scanner. Reading is performed while conveying the document, and the document after completion of reading is discharged under the document placement tray 142.

[0003] That is, the document is conveyed from the upper side to the lower side of the document placement tray 142 through a curved conveyance path.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In a conventional image reading device, a document is discharged under the document placement tray. Since a large-sized document is not hidden by the document placement tray, the user can easily notice it. However, a small-sized document cannot be confirmed unless the user consciously looks under the document placement tray. For this reason, there has been a problem that it is easy to forget a small-sized document. Some printers also have a small hole in the document tray, allowing users to check whether there are any documents being ejected below the tray. However, even with this design, users still have to consciously peer through the small hole to check for ejected documents, and the presence of documents is difficult to determine because they are obscured by the shadow of the document tray. Therefore, its effectiveness in preventing forgotten documents was limited.

[0006] This invention makes it easier to check the documents being ejected from the document tray below. [Means for solving the problem]

[0007] The present invention comprises a reading unit for reading an image of a document, a document placement unit on which the document is placed, a transport path for transporting the document, a discharge unit for discharging the document after reading by the reading unit has been completed, a document receiving unit for receiving the document discharged by the discharge unit, and a control unit for controlling the reading unit and the discharge unit. The document receiving unit has a first region that overlaps with the document placement unit when viewed vertically, and a second region that does not overlap with the document placement unit when viewed vertically, and the discharge unit is configured to discharge the document such that at least a part of the document is placed in the second region.

[0008] In the above configuration, the control unit controls the reading unit and the ejection unit. When a document is placed on the document placement unit, the transport path transports the document, and the reading unit reads the image of the document. When the ejection unit ejects the document after the reading unit has finished reading it, the document receiving unit receives the document ejected by the ejection unit. The document receiving section has a first region that overlaps with the document placement section when viewed vertically, and a second region that does not overlap with the document placement section when viewed vertically, and the discharge section discharges the document so that at least a portion of the document is placed in the second region. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view of a recording device to which an image reading device is applied. [Figure 2] This is a schematic block diagram of the recording device. [Figure 3] This is a cross-sectional view of the automatic document feeder of a recording device. [Figure 4] This is a front view of the recording device's ejection section, seen from the side. [Figure 5] This is a cross-sectional view showing the nip state of the second discharge section of the recording device. [Figure 6] This is a cross-sectional view showing the non-nip state of the second discharge section of the recording device. [Figure 7] This is a perspective view of the recording device for modifying the shape. [Figure 8] This is a cross-sectional view of the recording device for the modified example. [Modes for carrying out the invention]

[0010] (First embodiment) Embodiments of the present invention will be described below with reference to the drawings. Figure 1 is a perspective view of a recording device to which an image reading device according to one embodiment of the present invention is applied, and Figure 2 is a schematic block diagram of the recording device.

[0011] In the figure, the recording device 10 is equipped with an image reading device 20 at the top and an image printing device 30, which is a recording unit, at the bottom. The image reading device 20 is equipped with a flatbed scanner unit 21 and an automatic document feeder unit 22. The flatbed scanner unit 21 is equipped with a transparent glass (not shown), and a line sensor moves along the transparent glass to read the image of a document placed on the transparent glass, or reads the image of a document as it is transported facing the line sensor while the line sensor is stopped. The automatic document feeder unit 22 is equipped with a document placement unit 22a on which the document is placed, a transport path 22b for transporting the document, an ejection unit 22c for ejecting the document after scanning is complete, and a document receiving unit 22d for receiving the document ejected by the ejection unit 22c. The flatbed scanner unit 21 is also equipped with a reading unit 21a for reading the image of the document. Although not shown, the system includes a control unit 23 that controls the reading unit 21a, the ejection unit 22c, and other components not shown, such as the document placement unit 22a, the transport path 22b, and the document receiving unit 22d. The image printing device 30 corresponds to the recording unit.

[0012] The document receiving section 22d has a first region 22d1 that overlaps with the document placement section 22a when viewed vertically, and a second region 22d2 that does not overlap with the document placement section 22a when viewed vertically. The discharge section 22c discharges the document so that at least a portion of the document is placed in the second region 22d2. That is, the amount of the document discharged by the discharge section is changed according to the length of the document in the document transport direction so that at least a portion of the document is placed in the second region. In this way, the ejection unit 22c ejects the document to an area in the document receiving unit 22d that does not overlap with the document placement unit 22a, thereby improving the visibility of the document after scanning is complete. The following provides a detailed explanation of this configuration.

[0013] Figure 3 is a cross-sectional view of the automatic document feeder section of the recording device, and Figure 4 is a front view of the discharge section of the recording device as seen from the side. The automatic document feeder unit 22 is generally in the shape of a thin box. The ceiling plate member 22a1 at the central part of the upper surface is rotatable with the right end part in FIG. 3 as the rotation axis center so that the left end in FIG. 3 rises upward. The ceiling plate member 22a1 can be rotated clockwise to an angle slightly less than about 180 degrees in FIG. 3. When the ceiling plate member 22a1 rotates clockwise to the maximum in FIG. 3, the back surface of the ceiling plate member 22a1 facing the inside in FIG. 3 becomes a part of the document placement section 22a. Before the ceiling plate member 22a1 rotates clockwise, a first inclined surface 22a2 is formed below this ceiling plate member 22a1. When the ceiling plate member 22a1 rotates clockwise to the maximum and is in an inclined state, a series of placement surfaces are formed together with this first inclined surface 22a2. The entire document placement section 22a is constituted by this placement surface.

[0014] However, the configuration of the document placement section 22a is not limited to this. It is not limited to the configuration in which the ceiling plate member 22a1 rotates. A configuration in which it is displaced parallel to the first inclined surface 22a2 or a configuration with only the first inclined surface 22a2 is also acceptable. The document placement section 22a only needs to be configured such that the document before reading is appropriately placed.

[0015] The ceiling plate member 22d2a on the right side of the ceiling plate member 22a1 at the central part moves downward on the left end side as the ceiling plate member 22a1 rotates clockwise. That is, the ceiling plate member 22d2a rotates counterclockwise with the right end side as the rotation viewing point and becomes an inclined surface. Also, below the first inclined surface 22a2 that becomes the document placement section 22a is a second inclined surface 22d1a that constitutes a part of the document receiving section 22d. When the left end of the ceiling plate member 22d2a moves downward and inclines, a series of placement surfaces are formed together with the second inclined surface. The entire document receiving section 22d is constituted by this placement surface.

[0016] However, the configuration of the document receiving part 22d is not limited to this. It is not limited to the configuration in which the ceiling plate member 22d2a rotates, and it may be configured to be displaced parallel to the second inclined surface 22ad1a, or may be configured with only the second inclined surface 22d1a. Also, the document placement part 22d2a may be fixed in an inclined state. That is, the document receiving part 22d only needs to be configured such that the document after reading is appropriately placed.

[0017] A plurality of conveyance rollers are arranged at the left end side part of the auto document feeder part 22, guiding the document placed on the document placement part 22a from the left end to the left, further rotating it 180 degrees to change the direction to the right and conveying it. That is, the document advances in the left direction, reverses the counterclockwise U-shaped path, and passes through the reading area while advancing in the right direction. Therefore, conveyance rollers and the like constitute the conveyance path 22b. The reading area faces the transparent glass of the flatbed scanner part 21 on which the auto document feeder part 22 is placed, and in the flatbed scanner part 21, the line sensor faces the reading area. In this embodiment, only one side is read, but both sides may be read. When reading both sides, by providing a line sensor separately from the line sensor of the flatbed scanner part 21, the reading of both sides may be completed in one conveyance, or the document may be reversed and re-conveyed, and read by the line sensor of the flatbed scanner part 21.

[0018] The document conveyed with its direction changed to the right by the conveyance path 22b is discharged to the document receiving part 22d located below the document placement part 22a by the first discharge roller 22c1 located at the end of the conveyance path 22b.

[0019] As shown in Figure 3, the document receiving section 22d has a first region 22d1 that overlaps with the document placement section 22a and a second region 22d2 that does not overlap with the document placement section 22a. Since the document can only advance as far as the end in the length direction reaches the first discharge roller 22c1, documents with short paper lengths will be hidden by the document placement section 22a. For example, with an A4 size document, when it is discharged to the document receiving section 22d by the first discharge roller 22c1, the leading edge reaches the second region 22d2 and is not hidden by the document receiving section 22d. However, with smaller documents such as A5 size, when it is discharged to the document receiving section 22d by the first discharge roller 22c1, the leading edge may not reach the second region 22d2 and may be hidden under the document receiving section 22d. Therefore, to prevent forgetting to retrieve documents, the output transport volume for shorter documents is selectively increased, and they are transported to a point where they are not hidden in the document tray.

[0020] As shown in Figure 3, a second discharge roller 22c2 is provided in the first region 22d1 of this embodiment. Documents with long paper lengths are discharged using only the existing first discharge roller 22c1, while documents with short paper lengths are transported using both the first discharge roller 22c1 and the second discharge roller 22c2.

[0021] The existing first discharge roller 22c1 corresponds to the first discharge section, and the second discharge roller corresponds to the second discharge section located downstream of the first discharge section in the document transport direction. This allows the position where transport force can be applied to the document to be further downstream, so that the leading edge of the document can be transported further downstream. In other words, the amount of document fed can be increased. Documents with long paper lengths correspond to the first document, and the first document is discharged by the first discharge section. Documents with short paper lengths correspond to the second document, which has a shorter length in the transport direction than the first document, and the second document is discharged by the first and second discharge sections. By increasing the number of discharge sections on the downstream side and discharging short documents with the downstream discharge section, it is possible to discharge them into an area that does not overlap with the document placement section 22a.

[0022] The method for determining whether a document is long or short can be based on the length detected using an existing document length detector, or on the length of the document that can be detected when the document is digitized. This type of determination will be referred to as software-based determination. When determining using software, if the determined length of the document is a so-called small-sized document, a warning sound can be emitted from the speaker, or a message can be displayed on the LCD screen of the recording device 10 to warn users about forgetting to take their documents, thereby more effectively preventing users from forgetting to take their documents.

[0023] Here, the document length detector and the process of detecting the length of the document when it is digitized correspond to the detection unit that detects the length of the document in the transport direction. The control unit 23 that processes the software distinguishes between the first document and the second document based on the detection results of this detection unit. In this way, by directly measuring the document length, it can be accurately determined and a more appropriate discharge distance can be set.

[0024] The control unit 23 performs the step of determining whether the document is a first document or a second document which has a shorter length in the transport direction than the first document. Furthermore, if the document is a first document, it is discharged by the first discharge unit, and if the document is a second document, it is discharged by both the first and second discharge units. In addition, other methods for determining the document length include user input or determining the document length from its width.

[0025] Furthermore, the speaker and liquid crystal display act as information transmission units that convey information to the user, and the control unit 23 transmits information via these information transmission units when a second document with a shorter paper length is ejected. By informing the user that a small document with a shorter paper length has been ejected via the information transmission units, it is possible to prevent users from forgetting to pick it up.

[0026] Figures 5 and 6 show parts of the automatic document feeder section of the recording device. Figure 5 shows the second discharge section in a nip state, and Figure 6 shows the second discharge section in a non-nip state. As shown in Figures 4 to 6, multiple first ribs 22e1 are arranged on the ceiling side of the document receiving section 22d along the width direction of the document to reduce contact resistance when the document is ejected. As shown in Figure 4, the second ejection roller 22c2 is positioned offset to the right of the center in the width direction of the document in Figure 4. The document is set so that its right edge contacts the right edge of the auto document feeder section 22. An A4 document occupies almost the entire width of the document, but a smaller document such as an A5 document occupies only the right-hand portion of the document width. For this reason, the second ejection roller 22c2, which ejects small documents, is also offset to the right of the center. In other words, the second ejection roller 22c2 can be positioned according to the area in which small documents are transported. In the case of a configuration in which documents are transported based on the center regardless of the width of the document, it may be placed in the center. Alternatively, it may be placed on both sides of the center in the width direction of the document.

[0027] On the ceiling side of the document receiving section 22d, there is a second rib 22e2 which has a longer protruding length than the first rib 22e1. This second rib 22e2 is located to the left of the second discharge roller 22c2 in Figure 4. In other words, the second rib 22e2 is located outside the second discharge roller 22c2 with respect to the center of the document's width. More specifically, an A4 document occupies almost the entire width of the document, so it will naturally be guided downward by the second rib 22e2. However, a smaller document such as an A5 document only occupies the right-hand portion of the document's width, so it does not come into contact with the second rib 22e2 and is not guided downward.

[0028] In this way, by providing the second rib 22e2 at a position that contacts the first document but does not contact the second document, the first document, which is not discharged by the second discharge roller 22c2, is less likely to come into contact with the second discharge roller 22c2. Therefore, it is possible to suppress the second discharge roller 22c2 from becoming a transport load when the first document is discharged.

[0029] The second rib 22e2 may be fixed, but it can also be configured to be movable, extending or retracting as needed. Alternatively, the rib 22e may be provided in the width direction, and part or all of the rib 22e may extend or retract depending on the document. In this case, the amount of extension may be varied. In this case, the second rib 22e2 or rib 22e is displaceable. By selectively displacing the rib, the amount and position of protrusion can be changed according to the size of the document, allowing for more effective guidance of the document.

[0030] As shown in Figures 5 and 6, the second discharge roller 22c2 consists of an upper second discharge drive roller 22c2a, a lower second discharge driven roller 22c2b, and a roller holder 22c2c. The upper second discharge drive roller 22c2a is subjected to rotational driving force and rotates on its own, while the lower second discharge driven roller 22c2b is supported by the roller holder 22c2c and rotates when pressed upward, contacting the second discharge drive roller 22c2a. The roller holder 22c2c is driven vertically upward and downward. When the roller holder 22c2c is moved upward, the second discharge roller 22c2 enters a nip state, and when the roller holder 22c2c is moved downward, the second discharge roller 22c2 enters a non-nip state (release state). When a document is ejected in the nip state, it is nipped between the second ejection drive roller 22c2a and the second ejection driven roller 22c2b of the second ejection roller 22c2, and the document is driven to eject so that it reaches the second area. When a document is ejected in the release state, even if the second ejection drive roller 22c2a is rotating, the document is not nipped between the second ejection driven roller 22c2b, and therefore the document is not driven by the second ejection roller 22c2. Note that the release state is used when ejecting the first document, and the nip state is used when ejecting the second document.

[0031] Furthermore, the second discharge drive roller 22c2a protrudes downward from the first rib 22e1, and the second rib 22e2 protrudes downward from the second discharge drive roller 22c2a. Thus, the second discharge unit is a pair of rollers that can switch between a nip state and a release state, and when the first original document is discharged, the second discharge unit is in the release state. In other words, when discharging a large original document, the second discharge unit releases the nip, which prevents the second discharge unit from obstructing the discharge of the large original document. Also, if the second discharge unit discharges a large original document, it will be discharged beyond the second area, resulting in excessive protrusion. To achieve the release state, the driven roller may be separated, the drive roller may be separated, or both may be separated.

[0032] Furthermore, the transport path, including the document receiving section 22d, is equipped with ribs that guide the first surface of the document on the side closer to the document placement section 22a between the first discharge section and the second discharge section. These ribs consist of a first rib 22e1 and a second rib 22e2, which are arranged side by side in the width direction intersecting the transport direction. The roller pair consists of a first roller (second discharge drive roller 22c2a) facing the first surface of the document and a second roller (second discharge driven roller 22c2b) facing the surface opposite to the first surface. The first rib 22e1 has a protrusion length that is closer to the document placement section 22a than the first roller in the nip state, and the second rib 22e2 has a protrusion length that is further from the document placement section 22a than the first roller in the nip state. In this way, since the second rib protrudes further than the first roller in the nip state, the first document can be prevented from coming into contact with the first roller, extending the discharge distance for small documents and not hindering the discharge of large documents.

[0033] Thus, when ejecting small documents hidden by the document placement section 22a, such as a document tray, the transport distance is increased by the second ejection roller 22c2 in addition to the existing first ejection roller 22c1, transporting the documents to a position visible from the document tray. On the other hand, when ejecting large documents such as A4 size documents, the system switches whether or not to release the nip depending on whether the document has a long ejection length, so as not to put a transport load on the second ejection roller 22c2. In addition, the second ejection roller 22c2 is configured to rotate along with the ejection of the document.

[0034] Since the second rib 22e2 protrudes downward from the second discharge roller 22c2, a force acts on large documents being discharged while being held down by the second rib 22e2, moving them away from the second discharge roller 22c2, thereby reducing the transport load caused by contact with the second discharge roller 22c2. Figure 1 shows a stopper 22d3 that prevents ejected documents from protruding and falling out of the recording device 10. The stopper 22d3 acts to prevent documents from falling by being pulled out as needed, and when not needed, it is housed within the housing so that it does not protrude to the outside. This stopper 22d3 also constitutes the document receiving section 22d. Furthermore, the stopper 22d3 is also part of the second region.

[0035] As explained above, by ejecting small documents to a position where they are not hidden by the document tray, even small documents that are easily overlooked during image scanning using the automatic document feeder are ejected to a position where they are visible, thus reducing the chances of forgetting to retrieve them. In other words, since documents are ejected to an area in the document receiving section 22d that does not overlap with the document placement section 22a, the visibility of the document after scanning is improved.

[0036] Furthermore, when checking whether you've forgotten to pick up a manuscript, you don't have to assume a crouching position. Furthermore, while image scanning using a standard automatic document feeder requires reaching into a recessed area to grasp small documents, this method allows larger documents to be grasped at the same position where they would normally be retrieved. In addition, even when documents of different sizes are mixed, the output tip will roughly align with the leading edge of the largest document, regardless of size, thus reducing the risk of dropping documents during retrieval.

[0037] (Second example) In the first embodiment, a second discharge roller 22c2 is provided in addition to the first discharge roller 22c1. In the second embodiment, the rotation speed of the first discharge roller 22c1 is changed without providing the second discharge roller 22c2. In the second embodiment, the stack position is changed by changing the speed of the transport rollers in order to change the amount of material being transported depending on the original document. The second embodiment may be combined with the first embodiment. When combined, the rotation speed of the first discharge roller 22c1 may be changed, the rotation speed of the second discharge roller 22c2 may be changed, or the rotation speeds of both may be changed.

[0038] For large-sized documents, the rotation speed of the first discharge roller 22c1 is set so that after leaving the first discharge roller 22c1, it stops immediately at the document receiving section 22d. On the other hand, for small-sized documents, the rotation speed of the first discharge roller 22c1 is increased. That is, when the document is discharged by the first discharge roller 22c1, the discharge speed is set so that at least a portion of the document reaches the second area 22dd2. For example, the roller is rotated at a speed such that the place where the ejected document falls is the same as the position where a large-sized document is discharged and stops, or the position where the document is stopped by the document stopper 22d3. In this way, by transporting the scanned document from the first area 22d1, which is hidden by the document tray, the document placement section 22a, to the area that protrudes, the visibility of the scanned document can be improved.

[0039] Here, the discharge unit discharges the first document at a first discharge speed, and the second document, which is shorter in length in the transport direction than the first document, at a second discharge speed greater than the first discharge speed. In other words, the control unit 23 performs the step of determining whether the document is the first document or the second document, which is shorter in length in the transport direction than the first document. If the document is the first document, it is discharged at the first discharge speed, and if the document is the second document, it is discharged at a second discharge speed greater than the first discharge speed. In this way, by discharging small documents at a high speed, documents can be discharged over long distances.

[0040] (Third embodiment) Figure 7 is a perspective view of a modified recording device, and Figure 8 is a cross-sectional view. This recording device 10 is equipped with an image printing device 30, which has an output tray 33 above the paper tray 31. Paper placed in the paper tray 31 is printed through an internal printing unit 32, and the printed paper is discharged onto the output tray 33. The output tray 33 has a front end that can be pulled out from the main body, and when pulled out, it is large enough to hold the entire sheet of paper that can fit in the paper tray 31.

[0041] The paper tray 31 can accommodate both large and small-sized paper, just like original documents. Large-sized paper is ejected to the front of the output tray 33, but if small-sized paper, such as L-size photo paper, is ejected to the back of the output tray 33 and stops there, the user will not be able to find it. The printing unit 32 has a transport path from the paper tray 31 to the output tray 33, and includes an output unit 34 that ejects the printed paper via this transport path. The output tray 33 is the part that receives the paper ejected by the output unit 34. By applying a configuration like that of Example 1 or Example 2 to such a recording device 10, the visibility of the printed paper can be improved.

[0042] The output section 34 is equipped with a first output roller 34a for outputting large-sized paper. The first output roller 34a is located at the back of the output tray 33, and when a large-sized sheet of paper is output by the first output roller 34a, the leading edge of the paper is positioned at the front of the output tray 33 as the trailing edge of the paper leaves the first output roller 34a. The second discharge roller 34b consists of a second discharge drive roller 34b1, a second discharge driven roller 34b2, and a roller holder 34b3, and is installed in front of the first discharge roller 34a, i.e., downstream in the discharge path. The second discharge driven roller 34b2 is supported by the roller holder 34b3, which is movable up and down. When the roller holder 34b3 moves downward, the second discharge driven roller 34b2 is pressed against the second discharge drive roller 34b1, creating a nip state, and when the roller holder 34b3 moves upward, the second discharge driven roller 34b2 is released from the second discharge drive roller 34b1.

[0043] Thus, the discharge section comprises a first discharge section consisting of a first discharge roller 34a, and a second discharge section consisting of a second discharge roller 34b located downstream of the first discharge section in the paper transport direction. The first discharge section discharges the first sheet of paper, which is larger in size, and the first and second discharge sections discharge the second sheet of paper, which is shorter in length in the transport direction than the first sheet of paper. The second discharge section is a pair of rollers that can switch between a nip state and a release state. When the first sheet of paper is discharged, the second discharge section is in the release state. On the other hand, when the second sheet of paper is discharged, the second discharge section is in the nip state. When the second discharge drive roller 34b1 of the second discharge section, which is in the nip state, rotates, the paper is discharged by the second discharge section. Since the second discharge section is located downstream of the first discharge section in the transport direction, even small-sized sheets of paper can be discharged towards the front of the output tray 33. In addition, since the second discharge section releases the nip when discharging large-sized sheets of paper, it is possible to prevent the second discharge section from hindering the discharge of large-sized sheets of paper. Furthermore, the drive rollers may be separated, the driven rollers may be separated, or both may be separated.

[0044] Here, as an example, Example 1 was applied to the recording device 10, but Example 2 could also be applied. Furthermore, both Example 1 and Example 2 could be applied.

[0045] It goes without saying that the present invention is not limited to the embodiments described above. It goes without saying that those skilled in the art will understand this, - Apply the mutually interchangeable members and configurations disclosed in the above embodiments by appropriately changing their combinations. • Although not disclosed in the above embodiments, it is possible to appropriately substitute and modify the combinations of publicly known components and components that are interchangeable with those disclosed in the above embodiments. • Although not disclosed in the above embodiments, the members and components that a person skilled in the art could conceive of as substitutes for those members and components disclosed in the above embodiments based on prior art, etc., may be appropriately substituted, and their combinations may be modified for application. This is disclosed as one embodiment of the present invention. [Explanation of Symbols]

[0046] 10...Recording device, 20...Image reading device, 21...Flatbed scanner unit, 21a...Reading unit, 22...Automatic document feeder unit, 22a...Original document placement unit, 22a1...Ceiling panel material, 22a2...First inclined surface, 22b...Transport path, 22c...Discharge unit, 22c1...First discharge roller, 22c2...Second discharge roller, 22c2a...First roller (Second discharge drive roller), 22c2b...Second roller (Second discharge driven roller), 22c2c...Roller holder, 2 2d...Document receiving section, 22d1...First area, 22d1a...Second inclined surface, 22d2...Second area, 22d2a...Ceiling plate material, 22d3...Stopper, 22e1...First rib, 22e2...Second rib, 23...Control unit, 30...Image printing device, 31...Paper tray, 32...Printing section, 33...Paper output tray, 34...Discharge section, 34a...First discharge roller, 34b...Second discharge roller, 34b1...Second discharge drive roller, 34b2...Second discharge driven roller, 34b3...Roller holder.

Claims

1. A reading unit that reads the image of the document, The manuscript placement section where the manuscript is placed, The transport route for transporting the manuscript, An ejection unit for ejecting the document after the reading unit has finished reading it, A document receiving unit that receives the document discharged by the aforementioned discharge unit, A control unit that controls the reading unit and the discharge unit, Equipped with, The document receiving section has a first region that overlaps with the document placement section when viewed in the vertical direction, and a second region that does not overlap with the document placement section when viewed in the vertical direction. The discharge unit comprises a first discharge unit disposed in the transport path and a second discharge unit disposed in the document receiving unit. The first discharge unit discharges the documents transported along the transport path to the document receiving unit. The image reading device is characterized in that the second discharge unit discharges the document such that at least a portion of the document discharged to the document receiving unit by the first discharge unit reaches the second region.

2. The image reading device according to claim 1, characterized in that the second discharge unit is located downstream of the first discharge unit in the document transport direction.

3. The image reading device according to claim 1 or claim 2, characterized in that the discharge unit discharges a first document at a first discharge speed, and discharges a second document having a shorter length in the transport direction than the first document at a second discharge speed greater than the first discharge speed.

4. The first manuscript is discharged by the first discharge unit. The image reading device according to claim 2, characterized in that a second original document having a shorter length in the transport direction than the first original document is discharged by the first discharge unit and the second discharge unit.

5. The second discharge section is a pair of rollers that can switch between a nip state and a release state. The image reading device according to claim 4, characterized in that the second ejection unit is released when the first document is ejected.

6. The transport path includes ribs that guide the first surface of the document, which is the surface closest to the document placement area, between the first discharge section and the second discharge section. The rib has a first rib and a second rib arranged side by side in the width direction intersecting the conveying direction, The roller pair comprises a first roller facing the first side of the document and a second roller facing the side opposite to the first side. The first rib has a protrusion length that is closer to the document placement portion than the first roller in the nip state. The image reading device according to claim 5, characterized in that the second rib has a protrusion length that is further away from the document placement section than the first roller in the nip state.

7. The transport path includes ribs that guide the first side of the document on the side closer to the document placement section between the first discharge section and the second discharge section. The rib is configured to vary between a protruding length that is closer to the document placement area than the first roller in the nip state and a protruding length that is further away from the document placement area than the first roller in the nip state. The image reading device according to claim 6, characterized in that it is capable of positioning.

8. The system further includes a detection unit for detecting the length of the document in the aforementioned transport direction, The image reading device according to any one of claims 3 to 7, characterized in that the control unit distinguishes between the first document and the second document from the detection result of the detection unit.

9. To convey information to users, and to further enhance the information transmission section, The image reading device according to any one of claims 3 to 8, characterized in that the control unit transmits information via the information transmission unit when the second document is ejected.

10. An image reading device according to any one of claims 1 to 9, A recording device characterized by comprising a recording unit provided below the image reading device and having a recording section for recording on a medium.

11. A control method for an image reading device comprising: a reading unit for reading an image from a document; a document placement unit on which the document is placed; a transport path for transporting the document; a discharge unit for discharging the document after reading by the reading unit; and a document receiving unit for receiving the document discharged by the discharge unit, wherein the document receiving unit has a first region that overlaps with the document placement unit when viewed vertically, and a second region that does not overlap with the document placement unit when viewed vertically, and the discharge unit has a first discharge unit disposed in the transport path and a second discharge unit disposed in the document receiving unit, The document is transported along the aforementioned transport path, The first discharge unit discharges the document to the document receiving unit, A control method for an image reading device, characterized in that the amount of material discharged by the first discharge unit by the second discharge unit is changed according to the length of the material in the material transport direction, so that at least a portion of the material reaches the second region.

12. A step of determining whether the document is the first document or the second document which has a shorter length in the transport direction than the first document, If the document is the first document, it is discharged by the first discharge unit. A control method for an image reading device according to claim 11, characterized by comprising the step of discharging the first discharge unit and the second discharge unit if the original document is the second original document.

13. A step of determining whether the document is the first document or the second document which has a shorter length in the transport direction than the first document, If the original document is the first original document, it will be ejected at the first ejection speed. A control method for an image reading device according to claim 11, characterized by comprising the step of ejecting the document at a second ejection speed greater than the first ejection speed if the document is the second document.

14. A reading unit for reading an image of a document, The manuscript placement section where the manuscript is placed, The transport route for transporting the manuscript, An ejection unit for ejecting the document after the reading unit has finished reading it, A document receiving unit that receives the document discharged by the aforementioned discharge unit, A control unit that controls the reading unit and the discharge unit, Equipped with, The document receiving section has a first region that overlaps with the document placement section when viewed in the vertical direction, and a second region that does not overlap with the document placement section when viewed in the vertical direction. The discharge unit discharges the document such that at least a portion of the document is placed in the second area. The discharge unit comprises a first discharge unit and a second discharge unit located downstream of the first discharge unit in the document transport direction. The first manuscript is discharged by the first discharge unit. A second document, having a shorter length in the transport direction than the first document, is discharged by the first discharge unit and the second discharge unit. The second discharge section is a pair of rollers that can switch between a nip state and a release state. An image reading device characterized in that the second ejection unit is released when the first original document is ejected.

15. A reading unit for reading images of a first original and a second original, A document placement section on which the first and second documents are placed, A transport path for transporting the first and second manuscripts, An ejection unit for ejecting the first and second documents after reading by the reading unit, A document receiving unit that receives documents including the first and second documents discharged by the discharge unit, A control unit that controls the reading unit and the discharge unit, Equipped with, The document receiving section has a first region that overlaps with the document placement section when viewed in the vertical direction, and a second region that does not overlap with the document placement section when viewed in the vertical direction. The second region is connected downstream of the first region in the document transport direction, The length of the second manuscript in the transport direction is shorter than the length of the first manuscript in the transport direction. The aforementioned discharge section is By applying a first feed amount to the first document, the first document is discharged such that at least a portion of the first document is placed in the second area. An image reading device characterized by discharging the second document such that at least a portion of the second document is placed in the second region, by applying a second feed amount greater than the first feed amount to the second document.

Images