JP6907484B2 - Recording medium carrier, image reader and image output device - Google Patents

Description

The present invention relates to a recording medium transport device, an image reading device, and an image output device.

Patent Document 1 makes it possible to rotate a first roller that feeds a sheet by rotating, a second roller that conveys a sheet delivered by the first roller by rotating, and the first roller. A support member that supports and can rotate around the rotation axis of the second roller, and a holding means that holds the support member in a state where the first roller is separated from the seat, rotate. A driving means that generates a driving force, a first transmission mechanism that transmits the driving force generated by the driving means to the second roller to rotate the second roller, and the second roller. A second transmission mechanism that transmits the transmitted driving force to the first roller and rotates the first roller in a direction common to the second roller, and a control means that controls the driving means. When the sheet is conveyed, the driving means is rotated to rotate the first roller and the second roller in the direction of conveying the sheet, and the sheet is held by the holding means. The support member is rotated about the rotation axis of the second roller to make the first roller move in a circular motion in a direction approaching the seat so that the support member is not held by the holding means. Disclosed is a sheet transfer device including a control means for bringing a first roller into contact with the sheet. Further, in Patent Document 1, a gate member (opening / closing member) is provided in a transport path for transporting the sheet, and a gate lock member (fixing) that controls fixing and releasing of the opening / closing member in conjunction with the support member. It is disclosed that a control member) is provided.

Japanese Unexamined Patent Publication No. 2013-234060

In the configuration of Patent Document 1, it is considered that the first roller, the second roller, and the support member are made into one unit, and the unit can be easily attached in order to facilitate the replacement of this unit. Be done.
However, if the unit can be easily mounted, an error may occur in the mounting state of the unit and the fixed control member when the unit is replaced, and a problem may occur in the transport of the recording medium.

The present invention provides a recording medium transport device, an image reading device, and an image output device that can restore a normal mounting state even if an error occurs in the mounting state of the unit and the fixed control member. I am aiming.

The present invention according to claim 1 comprises a unit having at least a transport member that rotates to send out a recording medium, a support member that rotatably supports the transport member, and a transport path for the recording medium that is fed from the transport member. An opening / closing member that opens / closes, a fixing control member that controls fixing / releasing of the opening / closing member depending on whether the opening / closing member closes or opens the transport path in conjunction with the unit, and the unit and the fixing. A recording medium transport having a repair means for repairing the positional relationship between the unit and the fixed control member so as to shift from an erroneous state in which the control member is not interlocked to a normal state in which the unit and the fixed control member are interlocked. It is a device.

The recording medium transport according to claim 1, wherein the unit is a replacement member and has a control device for controlling the repair means to repair the positional relationship when the unit is replaced. It is a device.

According to the third aspect of the present invention, when the opening / closing member closes the transport path, the fixing control member fixes the opening / closing member at a position where the transport path is closed, and the opening / closing member opens the transport path. Is the recording medium transporting device according to claim 1 or 2, wherein the opening / closing member is controlled so as to be released from being fixed at a position where the transport path is closed.

The present invention according to claim 4 further includes an attached member for attaching the unit, and when the repair means moves the unit in a direction of attaching the unit to the attached member in an erroneous state, the fixed control member or The recording medium transport device according to any one of claims 1 to 3, wherein one of the support members escapes from the other to restore the positional relationship between the unit and the fixed control member.

The present invention according to claim 5 includes a support shaft that movably supports the fixed control member in the axial direction of the transport member, an urging member that urges the fixed control member toward the support member, and the support. When the unit is provided on the member and the unit is moved in the mounting direction, the fixed control member is obliquely moved in the axial direction of the support shaft so as to move the fixed control member along the support shaft against the urging member. The recording medium transport device according to any one of claims 1 to 4, further comprising a formed slope portion.

According to a sixth aspect of the present invention, the repair means includes a support shaft that movably supports the fixed control member in the axial direction of the transport member, and an urging member that urges the fixed control member toward the support member. When the unit is provided on the support member and the unit is moved in the mounting direction, the fixed control member is moved along the support shaft against the urging member in the axial direction of the support shaft. The recording medium conveying device according to any one of claims 1 to 4, further comprising a pressing portion on which a pressing force is applied.

The present invention according to claim 7 has a unit having at least a transport member that rotates to send out a recording medium, a support member that rotatably supports the transport member, and a transport path for the recording medium that is fed from the transport member. An opening / closing member that opens / closes, a fixing control member that controls fixing / releasing of the opening / closing member depending on whether the opening / closing member closes or opens the transport path in conjunction with the unit, and the unit and the fixing. A document reading device having a repair means for repairing the positional relationship between the unit and the fixed control member so as to shift from an erroneous state in which the control member is not interlocked to a normal state in which the unit and the fixed control member are interlocked. Is.

The present invention according to claim 8 is an image output device including the document reading device according to claim 4 and an output means for outputting an image read by the reading means.

According to the first aspect of the present invention, it is possible to provide a recording medium conveying device that can restore a normal mounting state even when an error occurs in the mounting state of the unit and the fixed control member. ..

According to the second aspect of the present invention, in addition to the effect of the present invention according to the first aspect, the restoration can be performed without human intervention.

According to the third aspect of the present invention, in addition to the effect of the present invention according to the first or second aspect, the recording medium can be positioned.

According to the fourth aspect of the present invention, in addition to the effect of the present invention according to any one of the first to third aspects, it is possible to repair by moving the unit in the direction of attaching to the attached member in an erroneous state. can.

According to the inventions of claims 5 and 6, in addition to the effect of the present invention according to any one of claims 1 to 4, the fixed control member can be repaired by moving it in the axial direction.

According to the invention of claim 7, it is possible to provide an image reading device capable of repairing to a normal mounting state even when an error occurs in the mounting state of the unit and the fixed control member.

According to the eighth aspect of the present invention, it is possible to provide an image output device that can be restored to a normal mounting state even when an error occurs in the mounting state of the unit and the fixed control member.

It is a schematic side view which shows the image output apparatus which concerns on embodiment of this invention. It is a perspective view of the image reader used in the embodiment of the present invention in a closed state. It is a perspective view of the image reader used in the embodiment of the present invention in a state where the cover is opened. It is sectional drawing which shows the structure in the vicinity of the entrance of the document transfer apparatus used in the embodiment of the present invention on the document placement portion side, and is in a state where the transfer path is closed. It is sectional drawing which shows the structure in the vicinity of the entrance of the document transfer apparatus used in the embodiment of the present invention on the document placement portion side, and is in a state where the transfer path is opened. It is a side view which shows the vicinity of the 3rd engaging part 90 and the 3rd engaged part 92 in embodiment of this invention. It is a side view which shows the exchange unit used in embodiment of this invention. It is a side view which shows the cover used in embodiment of this invention. It is a side view which shows the state which attached the exchange unit to the cover in embodiment of this invention. FIG. 5 is a cross-sectional view showing the vicinity of a fixed control member in which the replacement unit is in an erroneous state in the embodiment of the present invention. It is a side view which shows the vicinity of the fixed control member which is in an erroneous state in embodiment of this invention. In the embodiment of the present invention, it is a side view which shows the vicinity of the fixed control member in the process of repairing from the state which was in an erroneous state. In the embodiment of the present invention, it is a side view which shows the vicinity of the fixed control member after repair.

Next, an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic side view showing an image output device 10 according to an embodiment of the present invention.

The image output device 10 includes an image reading device 12 and an image forming device 14.
The image forming apparatus 14 has a plurality of recording medium accommodating units 16, and the recording medium is sent out from the selected recording medium accommodating unit 16.

The image forming unit 18 is provided above the recording medium accommodating unit 16. The image forming unit 18 has, for example, four image holders 20. The image holder 20 is, for example, a photoconductor, and a charger 22, an exposure device 24, a developing device 26, a primary transfer roll 28, and the like are arranged around the image holder 20. The image holder 20 is charged by the charger 22, exposed by the exposure device 24 to form a latent image, developed by the developing device 26, and the developed toner image is transferred to the intermediate transfer body 31 by the primary transfer roll 28. Primary transcription.

The recording medium sent out from the recording medium accommodating unit 16 described above is conveyed between the intermediate transfer body 31 and the secondary transfer roll 30. The toner image primary transferred by the intermediate transfer body 31 is transferred to the recording medium by the secondary transfer roll 30.

The fixing device 32 is arranged on the wake side of the secondary transfer roll 30 so as to fix the toner image of the secondary transfer recording medium on the recording medium. The recording medium on which the toner image is fixed is discharged to the recording medium discharging unit 34.

As shown in FIGS. 2 and 3, the image reading device 12 has a reading device main body 36 and a cover 38 (sometimes referred to as an attached member) rotatably supported by the reading device main body 36. .. By operating the operation unit 40, the cover 38 is released from the reading device main body 36 and opened from the reading device main body 36.

The image reading device main body 36 is provided with a document placing section 42 and a document ejecting section 44. The document transport device 46 has a transport path 48 that connects between the document loading section 42 and the document ejection section 44, and the document placed on the document loading section 42 is transmitted through the transport path 48. Transport to the discharge unit 44.

Further, an image reading unit 50 is provided at the lower part of the image reading device main body 36. The image reading unit 50 includes an image sensor 52 such as a CCD that reads the light conveyed by the document conveying device 46, and a plurality of mirrors 54 that guide the light to the image sensor 52.

4 and 5 show a structure near the entrance of the document transport device 46 on the document loading portion 42 side.
A pickup roll 56 and a transfer roll 58 arranged on the wake side of the pickup roll 56 are provided at the entrance of the document transfer device 46 on the document placing portion 42 side. The pickup roll 56 and the transport roll 58 are supported by the support member 60 so as to be rotatable by the first rotating shaft 62 and the second rotating shaft 64. The pickup roll 56, the transport roll 58, and the support member 60 constitute a replacement unit 66 (sometimes referred to simply as a unit), which will be described later. The pickup roll 56 is in contact with the document on the pad 68 provided on the image forming apparatus main body 36 side at the time of transport shown in FIG. 5, and transports the document placed on the document placing portion 42. The transport roll 58 is paired with the transport roll 70 provided on the image reading device main body 36 side, and usually rotates at the same time to transport the document.

The opening / closing member 72 is provided so as to face upward from the image reading device main body 36 on the wake side of the p-up roll 56, and opens and closes the transport path 48 on the wake side of the pickup roll 56. ..

The opening / closing member 72 is rotatably supported by the image reading device main body 36 via the first support shaft 74. An urging spring 76 is provided on the first support shaft 74 to urge the opening / closing member 72 in a direction opposite to the direction in which the document is conveyed. The opening / closing member 72 hits the image reading device main body 36 in the direction opposite to the transport direction.

A fixing control member 78 is provided to fix or release the opening / closing member 72. The fixed control member 78 is rotatably supported by a mounting wall 79 provided on the cover 38 via a second support shaft 80. Further, a first engaging portion 82 is provided at one end of the fixed control member 78, and a first engaged portion 84 is provided at the other end.

As shown in FIG. 4, when the opening / closing member 72 closes the document transport path 48, the second engaged portion 86 formed at the upper end of the opening / closing member 72 is the first engagement of the fixed control member 78. It engages with the portion 82 and is fixed in a state of being raised from the image reading device main body 36. On the other hand, as shown in FIG. 5, when the document transport path 48 is opened, the engagement between the second engaged portion 86 and the first engaging portion 82 of the fixed control member 78 is disengaged and the opening / closing member is released. The fixing of the 72 is released, and the opening / closing member 72 is tilted by the document conveyed by the pickup roll 56 so that the document is conveyed.

Further, the support member 60 of the replacement unit 62 is provided with a second engaging portion 88. As shown in FIG. 4, when the transport path 48 is closed, the engagement between the first engaged portion 84 and the second engaging portion 88 of the fixed control member 78 is disengaged. On the other hand, as shown in FIG. 5, when the transport path 48 is opened, the second engaging portion 88 engages with the first engaged portion 84 of the fixed control member 78, and the first opening / closing member 72 is opened. The engagement between the engaged portion 86 and the first engaging portion 82 of the fixed control member 78 is disengaged.

Further, as shown in FIG. 6, a third engaging portion 90 is provided on the support member 60 of the replacement unit 66. On the other hand, the cover 38 is provided with a third engaged portion 92. The third engaged portion 92 is urged toward the third engaging portion 90 by the coil spring 94. When the document transport path 48 shown in FIG. 4 is closed, the third engaging portion 90 engages with the third engaged portion 92 to maintain the state shown in FIG.

Next, an operation example of the document transfer device 46 will be described.
After the initial operation or the transfer of the document is completed, when the transfer roll 58 rotates counterclockwise Ra1 about the first rotation axis 64 from the state shown in FIG. 5, the support member 60 of the replacement unit 66 becomes the first. Rotates in the counterclockwise direction Rb1 about the rotation axis 64 of. When the support member 60 rotates counterclockwise Rb1 on the replacement unit 66, the third engaging portion 90 and the third engaged portion 92 engage with each other against the coil spring 94. Further, since the second engaging portion 88 is separated from the first engaged portion 84 of the fixed control member 78, the fixed control member 78 is fixed in the counterclockwise direction Rc1 about the second support shaft 80. It rotates with its own weight of 78, and the first engaging portion 82 of the fixing control member 78 engages with the second engaged portion 86 of the opening / closing member 72 to fix the opening / closing member 72 in a standing state.

On the other hand, when transporting a document, the transport roll 58 rotates clockwise Ra2 about the first rotation axis 64 from the state shown in FIG. When the transport roll 54 rotates clockwise Ra2, the support member 60 of the replacement unit 66 rotates clockwise Rb2 about the first rotation axis 64, and the third engaging portion 90 and the third engaged portion 90 are engaged. While disengaging the 92, the second engaging portion 88 engages with the first engaged portion 84 of the fixed control member 78 to rotate the fixed control member 78 clockwise Rc2. When the fixed control member 78 rotates clockwise Rc2, the engagement between the first engaging portion 82 and the second engaged portion 86 is disengaged, and the state shown in FIG. 5 is obtained. Therefore, the opening / closing member 72 is tilted in the horizontal direction by the conveyed document, and the document is conveyed.

Next, the exchange unit 66 will be described in detail.
FIG. 7 is a plan view of the replacement unit 66.

As described above, the replacement unit 66 is supported by the support member 60 so that the pickup roll 56 and the transport roll 58 are rotatable on the first rotating shaft 62 and the second rotating shaft 64. The pickup roll 56 and the transport roll 58 are connected via a connecting gear train 96. Further, the second rotating shaft 64 extends to the left and right, and is connected to the drive gear 100 via a torque limiter 98 on one side. When the cover 38 is closed, the drive gear 100 is connected to a drive motor provided on the image reading main body 36 side via a drive gear train. Further, bearings 102 and 102 are provided on both sides of the second rotating shaft 64, and the second rotating shaft 64 is rotatably supported via the bearings 102 and 102. Further, the bearings 102 and 102 are provided with mounting portions 104 and 104 for mounting on the cover 38.

The above-mentioned second engaging portion 88 is provided so as to protrude from the support member 60 on both sides of the support member 60. Further, a third engaging portion 90 is formed on the upper portion of the support member 60.

On the other hand, as shown in FIG. 8, the cover 38 is formed with mounted portions 106, 106 corresponding to the mounting portions 104, 104 of the replacement unit 66. Further, as described above, the fixed control member 78 is rotatably supported by the mounting wall 79 via the second support shaft 80, and the first engaging portion 82 is provided at one end and the other end. Is provided with a first engaged portion 84. Further, the cover 38 is provided with a third engaged portion 92 urged by the coil spring 94.

Then, as shown in FIG. 9, the replacement unit 66 is detachably supported by the cover 38 by fitting the mounting portions 104, 104 of the replacement unit 66 into the mounted portions 106, 106 of the cover 38. There is. In this case, the second engaging portion 88 of the replacement unit 66 is arranged on the rear side (back side in FIG. 9) of the first engaged portion 84 of the opening / closing control member 78. When there is a replacement unit 66 in the state of FIG. 4, the third engaging portion 90 of the replacement unit 66 engages with the third engaged portion 92 of the cover 38.

However, since the replacement unit 66 is removable, an erroneous state may occur.
That is, originally, as described above, the second engaging portion 88 of the replacement unit 66 should be arranged behind the first engaged portion 84 of the opening / closing control member 78. If there is an error during assembly, if you catch your hand when trying to remove the jammed document, or if you open or close the cover 38 strongly, as shown in FIG. 10, the front side of the open / close control member 78 (lower in FIG. 10). The second engaging portion 88 of the replacement unit 66 may be arranged in the replacement unit 66.

When the second engaging portion 88 is arranged on the front side of the open / close control member 78 in this way, as shown in FIG. 5, the transport roll 58 is moved in the counterclockwise direction Ra1 about the first rotation axis 64. Since the second engaging portion 88 is not engaged with the first engaged portion 84 of the opening / closing control member 78 even when rotated, the opening / closing control member 78 is maintained as it is, and the fixed control member 78 The engagement between the first engaging portion 82 and the second engaged portion 86 of the opening / closing member 72 is not disengaged. If the first engaging portion 82 of the fixed control member 78 and the second engaged portion 86 of the opening / closing member 72 are not disengaged, the opening / closing member 72 is fixed in a standing state. If you send the manuscript to, it will be jammed.

Therefore, in this embodiment, a repair means for repairing the positional relationship between the replacement unit 66 and the fixed control member 78 is provided so as to shift to a normal state in which the replacement unit 66 and the fixed control member 78 are interlocked with each other.

11 to 13 show specific examples of the repair means.
The second engaging portion 88 of the replacement unit 66 is formed with a slope portion 108 (sometimes referred to as a pressing portion) on the back surface side. The slope portion 108 is formed so that the fixed control member 78 side inclines toward the back side as it approaches the replacement unit 66 in the foreground.

Further, the fixed control member 78 is supported so as to be movable in the axial direction with respect to the second support shaft 80. Further, an urging member 110 composed of a compression coil spring or the like is provided between the fixed control member 78 and the mounting wall 79 of the cover 38.

Here, as shown in FIG. 11, it is assumed that the second engaging portion 88 of the replacement unit 66 is in an erroneously assembled state arranged on the front side of the fixed control member 78. As described above, at the time of initial operation, the replacement unit 66 receives a force in the direction in which the support member 60 rotates counterclockwise Rb1 (back side in FIGS. 11 to 13) about the first rotation axis 64. It works. When a force in the direction in which the support member 60 rotates toward the back surface acts, the opening / closing control member 78 engages with the first engaging portion 82 of the opening / closing control member 78 and the second engaged portion 86 of the opening / closing member 72. Since the movement in the rotational direction is prevented, a component force acts on the open / close control member 78 in the axial direction from the slope portion 108 to the mounting wall 79 of the cover 38. When an axial component force acts on the opening / closing control member 78, the opening / closing control member 78 moves along the second support shaft 80 toward the mounting wall 79 against the urging force of the urging member 110.

As shown in FIG. 12, the opening / closing control member 78 escapes to the tip of the slope portion 108 of the second engaging portion 88, and the second engaging portion 88 exceeds the opening / closing control member 78. When the second engaging portion 88 exceeds the open / close control member 78 and reaches the back side of the open / close control member 78, the urging force of the urging member 110 acts on the open / close control member 78 to open / close as shown in FIG. The control member 78 will return to its original position.

That is, the second engaging portion 88 of the replacement unit 66 is arranged behind the fixed control member 78, and the normal state in which the replacement unit 66 and the fixed control member 78 are interlocked can be entered.

In the above embodiment, the fixed control member 78 is released in the axial direction to move the second engaging portion 88 to the back surface side of the fixed control member 78, but the present invention is limited to this. Instead, for example, the second engaging portion 88 may be released in the axial direction to move the second engaging portion 88 to the back surface side of the fixed control member 78. Further, at least one of the fixed control member 78 and the second engaging portion 88 may be released in the radial direction instead of the axial direction of the second support shaft 80.

10 Image output device 12 Image reader 14 Image forming device 18 Image forming unit 36 Reading device main body 38 Cover 46 Document transfer device 48 Transfer path 56 Pickup roll 58 Transfer roll 60 Support member 62 First rotation axis 64 Second rotation axis 66 Replacement unit 72 Opening / closing member 74 First support shaft 78 Fixed control member 80 Second support shaft 82 First engagement part 84 First engagement part 86 Second engagement part 88 Second engagement Joint part 108 Slope part 110 Biasing member

Claims (10)

A unit having at least a transport member that rotates to send out a recording medium and a support member that rotatably supports the transport member.
An opening / closing member that opens / closes the transport path of the recording medium sent out from the transport member, and
A fixed control member that controls fixing and releasing of the opening / closing member depending on whether the opening / closing member closes or opens the transport path in conjunction with the unit.
A repair means for repairing the positional relationship between the unit and the fixed control member so as to shift from an erroneous state in which the unit and the fixed control member are not interlocked to a normal state in which the unit and the fixed control member are interlocked. have a,
The repair means engages the support member with the fixed control member, and one of the support member or the fixed control member escapes from the other to repair the positional relationship between the unit and the fixed control member. Medium transfer device. A unit having at least a transport member that rotates to send out a recording medium and a support member that rotatably supports the transport member.
An opening / closing member that opens / closes the transport path of the recording medium sent out from the transport member, and
A fixed control member that controls fixing and releasing of the opening / closing member depending on whether the opening / closing member closes or opens the transport path in conjunction with the unit.
A support shaft that movably supports the fixed control member in the axial direction of the transport member, an urging member that urges the fixed control member toward the support member side, and a support shaft provided on the support member. A slope portion formed obliquely with respect to the axial direction is provided, and when the support member is moved in an erroneous state in which the unit and the fixed control member do not interlock, the slope portion causes the biasing member. The fixed control member is moved against the above, and when the support member is further moved, the urging member causes the unit and the fixed control member to shift to a normal state in which the unit and the fixed control member are interlocked with each other.
Recording medium transfer device having. The recording medium transport device according to claim 2, wherein the support member is moved after the initial operation or the transport of the original document is completed, not only in the case of the erroneous state . The recording medium transport device according to any one of claims 1 to 3, wherein the unit is a replacement member and has a control device for controlling the repair means to repair the positional relationship when the unit is replaced. The solid Josei control member, when the opening and closing member closes the conveying path is fixed to the closing member in a position closing the transport path, the transport path of the closing member when said opening and closing member opens the transport path The recording medium conveying device according to any one of claims 1 to 4 , wherein the fixing is controlled so as to be released at a closing position. It also has a member to be attached to which the unit is attached.
When the unit is moved in the direction of being attached to the attached member in an erroneous state, the repair means positions the unit and the fixed control member by escaping one of the fixed control member or the support member from the other. The recording medium transport device according to any one of claims 1 to 5, wherein the relationship is repaired. The repair means is provided on the support shaft, a support shaft that movably supports the fixed control member in the axial direction of the transport member, an urging member that urges the fixed control member toward the support member, and the support member. When the unit is moved in the mounting direction, a pressing portion that exerts a pressing force in the axial direction of the supporting shaft so as to move the fixed control member along the supporting shaft against the urging member. The recording medium transport device according to claim 1, wherein the device has. A unit having at least a transport member that rotates to send out a recording medium and a support member that rotatably supports the transport member.
An opening / closing member that opens / closes the transport path of the recording medium sent out from the transport member, and
A fixed control member that controls fixing and releasing of the opening / closing member depending on whether the opening / closing member closes or opens the transport path in conjunction with the unit.
A repair means for repairing the positional relationship between the unit and the fixed control member so as to shift from an erroneous state in which the unit and the fixed control member are not interlocked to a normal state in which the unit and the fixed control member are interlocked. Yes, and
The repair means is a document that repairs the positional relationship between the unit and the fixed control member by engaging the support member with the fixed control member and allowing one of the support member or the fixed control member to escape from the other. Reader. A unit having at least a transport member that rotates to send out a recording medium and a support member that rotatably supports the transport member.
An opening / closing member that opens / closes the transport path of the recording medium sent out from the transport member, and
A fixed control member that controls fixing and releasing of the opening / closing member depending on whether the opening / closing member closes or opens the transport path in conjunction with the unit.
A support shaft that movably supports the fixed control member in the axial direction of the transport member, an urging member that urges the fixed control member toward the support member side, and a support shaft provided on the support member. A slope portion formed obliquely with respect to the axial direction is provided, and when the support member is moved in an erroneous state in which the unit and the fixed control member do not interlock, the slope portion causes the urging member. The fixed control member is moved against the above, and when the support member is further moved, the urging member causes the unit and the fixed control member to shift to a normal state in which the unit and the fixed control member are interlocked with each other.
Document reader having. The document reader according to claim 8 or 9,
An output means for outputting an image read by the document reader and
Image output device with.

Images