The present application claims priority under 35 U.S.C. ยง 119 to Japanese Patent Application No. 2016-234947, filed on Dec. 2, 2016. The contents of this application are incorporated herein by reference in their entirety.
The present disclosure relates to inkjet recording devices.
An existing inkjet printer includes a line head, a head cap, and a head frame. The line head forms images on paper with ink. The head cap moves from an open position to a closed position, closing the line head. The head frame guides the head cap between the closed and open positions. In the inkjet printer, the head cap moves between the closed and open positions in a left-right direction of the inkjet printer.
The head cap is taken out of the inkjet printer when the head cap is replaced. In a configuration in which the head cap moves in the left-right direction of the inkjet printer, the head cap may be taken out through an opening disposed in either a left or right side surface of the inkjet printer. The opening, for example, is on a side surface with an exit port thereon. A recording medium is ejected through the exit port.
An inkjet recording device according to an aspect of the present disclosure includes a recording head section, a capping unit, a capping movement mechanism, and a capping support section. The recording head section forms an image with ink on a recording medium. The capping unit includes a cap that is contactable to the recording head section. The capping movement mechanism moves the capping unit. The capping support section supports the capping unit. The capping movement mechanism includes a first horizontal guidance section which guides the capping unit in a first horizontal direction between a standby position in which the cap is located beneath the recording head section and a retracted position in which the cap has retracted from the standby position. The capping support section includes a second horizontal guidance member which guides the capping unit in a second horizontal direction between the standby position and a detachable position in which the capping unit is attached or detached. The second horizontal direction intersects the first horizontal direction.
As follows, an inkjet recording device 1 according an embodiment of the present disclosure is described with reference to the drawings. Note that elements that are the same or equivalent are indicated by the same reference signs in the drawings and description thereof is not repeated. Also, the drawings are schematic illustrations that emphasize elements of configuration in order to facilitate understanding thereof.
The inkjet recording device 1 according to the embodiment of the present disclosure is described with reference to
As illustrated in
The paper feed section 3 includes paper feed cassettes 31, paper feed rollers 32a and 32b, and a manual feed tray 33. The paper feed cassettes 31 are arranged in a lower portion of the casing 2. The paper feed cassettes 31 are attachable to and detachable from the casing 2. Multiple sheets of paper S can be stacked and accommodated inside of the paper feed cassettes 31. A portion of the manual feed tray 33 is externally exposed from the casing 2. Multiple sheets of the paper S can be stacked and placed on the manual feed tray 33.
The paper S is an example of a recording medium according to an aspect of the present disclosure. The paper S is plain paper, copy paper, recycled paper, thin paper, thick paper, glossy paper, or overhead projector (OHP) transparency, for example.
The paper feed rollers 32a and 32b are so-called pickup rollers. The paper feed rollers 32a retrieve an uppermost sheet of the paper S housed within the paper feed cassettes 31 one sheet at a time. The paper feed roller 32b retrieves an uppermost sheet of the paper S placed on the manual feed tray 33 one sheet at a time. The paper feed rollers 32a and 32b send the retrieved paper S to the conveyance section 5.
The conveyance section 5 conveys the paper S along a conveyance path of the paper S. The conveyance path of the paper S extends from the paper feed section 3 to the ejection section 8 via the recording head section 4. The conveyance section 5 includes a first conveyance unit 51, a second conveyance unit 52, and a plurality of roller pairs arranged along the conveyance path.
The first conveyance unit 51 is an example of a conveyance unit according to an aspect of the present disclosure. The first conveyance unit 51 includes a conveyor belt 51a, a drive roller 51b, and a driven roller 51c. The conveyor belt 51a is wound between the drive roller 51b and the driven roller 51c. The paper S conveyed by the conveyor belt 51a is sent to the second conveyance unit 52 by rotation of the conveyor belt 51a.
The second conveyance unit 52 is arranged downstream from the first conveyance unit 51 in the conveyance path. The second conveyance unit 52 includes a conveyor belt 52a, a drive roller 52b, and a driven roller 52c. The conveyor belt 52a is wound between the drive roller 52b and the driven roller 52c. The paper S conveyed by the conveyor belt 52a is sent to the ejection section 8 by rotation of the conveyor belt 52a.
The recording head section 4 is arranged facing the first conveyance unit 51. The recording head section 4 forms images with ink on the paper S conveyed by the first conveyance unit 51. The paper S with images formed thereon is sent to the second conveyance unit 52.
The recording head section 4 includes a head housing 4a and recording heads 4y, 4m, 4c, and 4k. The head housing 4a holds the recording heads 4y, 4m, 4c, and 4k. The recording head 4y ejects yellow ink. The recording head 4m ejects magenta ink. The recording head 4c ejects cyan ink. The recording head 4k ejects black ink.
The ejection section 8 includes an exit tray 81. A portion of the exit tray 81 is externally exposed from the casing 2. The paper S with images formed thereon is ejected to the exit tray 81. Note that sheets of the paper S with images formed thereon are sequentially stacked on the exit tray 81.
The wiper section 7 is arranged beneath the second conveyance unit 52. The wiper section 7 includes wiper blades 7y, 7m, 7c, and 7k. The wiper blades 7y, 7m, 7c, and 7k wipe attached ink off of the recording head section 4. The wiper blade 7y corresponds to the recording head 4y. The wiper blade 7m corresponds to the recording head 4m. The wiper blade 7c corresponds to the recording head 4c. The wiper blade 7k corresponds to the recording head 4k.
The capping unit 6 is arranged beneath the second conveyance unit 52 and above the wiper section 7. The capping unit 6 includes caps 6y, 6m, 6c, and 6k. The cap 6y corresponds to the recording head 4y. The cap 6m corresponds to the recording head 4m. The cap 6c corresponds to the recording head 4c. The cap 6k corresponds to the recording head 4k.
The capping unit 6, for example, affixes the caps 6y, 6m, 6c, and 6k to the recording heads 4y, 4m, 4c, and 4k, respectively. This is done when the recording head section 4 goes unused for more than a predetermined amount of time. As a result, the ink of the recording heads 4y, 4m, 4c, and 4k is inhibited from drying.
The movement mechanism 10 moves the first conveyance unit 51, the capping unit 6, and the wiper section 7 inside of the casing 2. The movement mechanism 10 moves the first conveyance unit 51 between an upper limit position P1 and a lower limit position P2. In the upper limit position P1, the first conveyance unit 51 is facing the recording head section 4. In the lower limit position P2, the first conveyance unit 51 is descended from the upper limit position P1. When in the lower limit position P2, the first conveyance unit 51 does not make contact with either the capping unit 6 in a standby position P4 or the wiper section 7 in a standby position. In the standby position P4, the caps 6y, 6m, 6c, and 6k are located beneath the recording head section 4.
The movement mechanism 10 moves the capping unit 6 between a retracted position P3 and the standby position P4. The capping unit 6 faces the recording head section 4 in a Z axial direction (up-and-down direction) when in the standby position P4. The capping unit 6 is located beneath the second conveyance unit 52 when in the retracted position P3. In the retracted position P3, the caps 6y, 6m, 6c, and 6k are retracted from the standby position P4.
The movement mechanism 10 moves the wiper section 7 between a retracted position (indicated by solid lines in
The controller 9 controls operation of the inkjet recording device 1. In detail, the controller 9 includes a central processing unit (CPU) and memory. Various computer programs to be executed by the CPU are stored in the memory. The CPU controls the paper feed section 3, the recording head section 4, the conveyance section 5, the capping unit 6, the wiper section 7, and the movement mechanism 10 by executing the various computer programs stored in the memory.
A configuration of the movement mechanism 10 is described with reference to
As illustrated in
The first casing 11 includes walls 11a and 11b facing each other in the X axial direction (front-back direction of the inkjet recording device 1). The walls 11a and 11b movably support the capping unit 6. The walls 11a and 11b also movably support the wiper section 7.
The second casing 12 includes walls 12a and 12b facing each other in the X axial direction. The walls 12a and 12b movably support the first conveyance unit 51.
The conveyance unit movement mechanism 13 causes the first conveyance unit 51 to ascend or descend in the Z axial direction inside of the second casing 12. The conveyance unit movement mechanism 13 is configured with a rail section and an engagement section, for example. The rail section is on the inner surfaces of the walls 12a and 12b, oriented in an up-and-down direction, for example. The engagement section is in the first conveyance unit 51. The engagement section slides up and down along the rail section.
The wiper movement mechanism 15 moves the wiper section 7 in the Y axial direction between the standby and retracted positions. The wiper movement mechanism 15 is configured with a rail section 15a and an engagement pin, for example. The rail section 15a is on the inner surfaces of the walls 11a and 11b, oriented in the Y axial direction, for example. The engagement pin is disposed on a side surface of the wiper section 7. The engagement pin is guided in the Y axial direction by the rail section 15a. The engagement pin slides along the rail section 15a, and guides the wiper section 7 in the Y axial direction between the retracted and standby positions. A drive source such as a motor is used to move the wiper section 7, for example.
The capping movement mechanism 14 moves the capping unit 6 in the Y axial direction between the standby and retracted positions P4 and P3. The capping movement mechanism 14 is an example of a first horizontal guidance section according to an aspect of the present disclosure.
The capping movement mechanism 14 includes a rail section 14a and an engagement pin, for example. The rail section 14a is on the inner surfaces of the walls 11a and 11b, oriented in the Y axial direction, for example. The engagement pin is disposed on a side surface of the capping unit 6. The engagement pin is guided in the Y axial direction by the rail section 14a. The engagement pin slides along the rail section 14a and guides the capping unit 6 in the Y axial direction between the retracted and standby positions P3 and P4. A drive source such as a motor is used to move the capping unit 6, for example.
The movement mechanism 10 further includes a capping support section 16. The capping support section 16 supports the capping unit 6 that has been moved into the standby position P4. As a result, the capping unit 6 is restricted from moving downward when in the standby position P4. The capping support section 16 includes a rail section 16a and two support lever sections 16b.
The rail section 16a engages the capping unit 6 when the capping unit 6 has been moved into the standby position P4, and supports the capping unit 6 inside of the second casing 12. The rail section 16a is an example of a second horizontal guidance section according to an aspect of the present disclosure. The rail section 16a engages one end (left end in
The support lever sections 16b support the capping unit 6 inside of the second casing 12 when the capping unit 6 has been moved into the standby position P4. The support lever sections 16b support the other end (right end in
The support lever sections 16b are described with reference to
As illustrated in
The lever 16d, for example, is urged by the weight thereof so as to rotate in one direction around the rotary shaft 16e. Furthermore, the rotation of the lever 16d is restrained by the stopper 16f when the lever 16d has rotated to a predetermined position.
The lever 16d rotates as the first conveyance unit 51 ascends and descends. The lever 16d is supported by the first conveyance unit 51 in a position illustrated in
A configuration of the conveyance unit movement mechanism 13 is described with reference to
One end of the wire 13b is attached to the first conveyance unit 51. The other end of the wire 13b is attached to the roller 13c. The wire 13b supports the first conveyance unit 51 so that the first conveyance unit 51 is suspended.
The roller 13c is rotatable around a rotary shaft (not shown) extending in the Y axial direction. The roller 13c rotates in one direction thus winding the wire 13b. The roller 13c also rotates in the other direction thus unwinding the wire 13b.
A drive shaft (not shown) of the motor 13d is connected to the rotary shaft of the roller 13c via the clutch 13e. The motor 13d rotates the roller 13c in either direction.
The clutch 13e switches the rotary shaft of the roller 13c between being connected to and disconnected from the drive shaft of the motor 13d.
Continuing, operation of the first conveyance unit 51 and the capping unit 6 is described with reference to
When the capping unit 6 caps ink ejection ports of the recording head section 4, the first conveyance unit 51 first descends to the lower limit position P2, as shown in
Next, the capping unit 6 moves in the Y axial direction, as illustrated in
Next, as illustrated in
Next, as illustrated in
Next, the configuration of the movement mechanism 10 is further described with reference to
As illustrated in
The rail section 16a extends in the X axial direction, and supports the capping unit 6 moving in the X axial direction. In detail, the rail section 16a supports the capping unit 6 as the capping unit 6 crosses from the standby position P4 to the detachable position P5. The detachable position P5 is outside of the casing 2 described with reference to
According to the inkjet recording device 1 of the present embodiment, the capping unit 6 can be moved in the X axial direction from the standby position P4 and placed in the detachable position P5. Accordingly, the front of the casing 2 opens, and the capping unit 6 can be attached and detached. As a result, the capping unit 6 can be easily attached and detached through the front of the casing 2 without moving the inkjet recording device 1, even when a side surface of the casing 2 with the ejection section 8 thereon is up against a wall of a room. Also, the capping unit 6 can be easily attached and detached through the front of the casing 2 without removing a post-processing device from the inkjet recording device 1, even when the post-processing device has been installed in the inkjet recording device 1.
Next, a configuration of the rail section 16a is described with reference to
As illustrated in
The rail section 16a comes into contact with an upper end 51e of a frame of the first conveyance unit 51 to ascend. The upper end 51e of the frame of the first conveyance unit 51 is above the conveyor belt 51a. Therefore, the rail section 16a does not make contact with the conveyor belt 51a or the drive roller 51b when being caused to ascend by the first conveyance unit 51. Also, there is a predetermined space in the Z axial direction between the conveyor belt 51a and the upper end 51e. The predetermined space is larger than a thickness of the paper S. The rail section 16a accordingly does not make contact with the paper S conveyed by the conveyor belt 51a either.
The rail section 16a descends by the weight thereof when the first conveyance unit 51 has descended. As the rail section 16a descends, an upper end thereof engages the retaining member 4b. The rail section 16a, having descended, can engage the capping unit 6 that has been moved into the standby position P4. The engagement rail section 6f described with reference to
The inkjet recording device 1 according to the embodiment of the present disclosure is described above with reference to
For example, the capping unit 6 moves together with the second casing 12 in the X axial direction according to the embodiment of the present disclosure, but the present disclosure is not limited thereto. It is only necessary for the capping unit 6 to be moved by itself to the detachable position P5. The capping unit 6 by itself, for example, may move to the detachable position P5 along the rail section 16a and the support lever section 16b (lever 16d) without moving the second casing 12. As a result, the capping unit 6 can be moved between the standby and detachable positions P4 and P5 without moving the second casing 12 in the X axial direction.
Note that the drawings are schematic illustrations that emphasize elements of configuration in order to facilitate understanding thereof. Properties of the elements of configuration illustrated in the drawings, such as thicknesses and lengths thereof, may differ from actual properties thereof in order to facilitate preparation of the drawings. Also, properties of elements of configuration such as shapes described in the above embodiment are merely examples, are not intended as specific limitations, and can be altered in various ways to the extent that there is not substantial deviation from the effects of the present disclosure.
Number | Date | Country | Kind |
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2016-234947 | Dec 2016 | JP | national |
Number | Name | Date | Kind |
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8201917 | Ito | Jun 2012 | B2 |
8636338 | Mealy | Jan 2014 | B2 |
20090085966 | Umeda | Apr 2009 | A1 |
Number | Date | Country |
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2001-293871 | Oct 2001 | JP |
Number | Date | Country | |
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20180154638 A1 | Jun 2018 | US |