EP3085537B1 - Liquid discharging apparatus - Google Patents

Liquid discharging apparatus Download PDF

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Publication number
EP3085537B1
EP3085537B1 EP16160812.0A EP16160812A EP3085537B1 EP 3085537 B1 EP3085537 B1 EP 3085537B1 EP 16160812 A EP16160812 A EP 16160812A EP 3085537 B1 EP3085537 B1 EP 3085537B1
Authority
EP
European Patent Office
Prior art keywords
airflow
carriage
receiving chamber
recording
recording apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16160812.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3085537A1 (en
Inventor
Tsutomu Sasaki
Satoru Katagami
Kazutoshi Fujishima
Manabu Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of EP3085537A1 publication Critical patent/EP3085537A1/en
Application granted granted Critical
Publication of EP3085537B1 publication Critical patent/EP3085537B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/1714—Conditioning of the outside of ink supply systems, e.g. inkjet collector cleaning, ink mist removal

Definitions

  • the present invention relates to a liquid discharging apparatus.
  • a liquid discharging apparatus which discharges liquid such as ink onto a medium such as a recording medium.
  • a liquid discharging apparatus there is a case in which mist of the liquid is attached to and remains in a discharging portion, or the like of the liquid and the medium is polluted by the mist dropping on the medium.
  • a technology in which attaching the mist to the discharging portion, or the like of the liquid is suppressed is disclosed.
  • the liquid discharging apparatus includes a recovering portion which recovers the mist of ink generated when the ink is discharged from the discharging portion.
  • the liquid discharging apparatus which is disclosed in JP-A-2004-237691 and JP-A-2014-195887 , performs recording by reciprocating a carriage including the discharging portion in a reciprocating direction.
  • the liquid discharging apparatus including the carriage that includes the discharging portion discharging the liquid onto the medium and that is capable of being moved in a reciprocating direction, if a large amount of the mist of the liquid is present in the moving region of the carriage, there is a case in which the mist is attached to the medium or a case in which an accuracy of discharging is deteriorated because the mist is attached to the discharging portion, and a quality (for example, recording quality) of the medium to which the liquid is discharged is deteriorated.
  • a quality for example, recording quality
  • the liquid discharging apparatus which is disclosed in JP-A-2004-237691 and JP-A-2014-195887 , is capable of appropriately moving (recovering) the mist of the ink generated when the ink is discharged from the discharging portion, from the moving region of the carriage; however, a configuration thereof is complicated.
  • An advantage of some aspects of the invention is that mist generated when the liquid is discharged from the discharging portion is moved with a simple configuration from a moving region of a carriage, which includes a discharging portion discharging liquid onto a medium, and can be moved in the reciprocating direction.
  • a liquid discharging apparatus as defined in claim 1.
  • the mist generated when the liquid is discharged from the discharging portion can be moved with a simple configuration from the moving region of the carriage which includes the discharging portion discharging the liquid onto the medium and can be moved in the reciprocating direction.
  • Fig. 1 and Fig. 2 are schematic perspective views of the recording apparatus 1 of the example.
  • Fig. 3 is a perspective side sectional view of the recording apparatus 1 of the example.
  • Fig. 2 illustrates a state in which a part of a configuration member, such as a case body 12 is removed so as to easily describe an inside of the recording apparatus 1.
  • the transportation mechanism 3 of the example includes the adhesive belt 2 which mounts and transports the recording medium fed from the feeding portion, a driving roller 8 which moves the adhesive belt 2, and a following roller 9.
  • the recording medium is attached to and mounted on a supporting surface of the adhesive belt 2.
  • an endless belt as a transportation belt is not limited to the adhesive belt.
  • an electrostatically attracting endless belt may be used.
  • the recording apparatus 1 of the example performs recording by reciprocally scanning the carriage 6 including the recording head 7 at the time of recording; however, during record-scanning (during moving of carriage 6), the transportation mechanism 3 allows transportation of the recording medium to stop.
  • the transportation mechanism 3 When expressed in a different manner, at the time of recording, reciprocal scanning of the carriage 6 and transportation of the recording medium are alternately performed. That is, at the time of recording, corresponding to reciprocal scanning of the carriage 6, the transportation mechanism 3 intermittently transports the recording medium (the adhesive belt 2 is intermittently moved).
  • a rail 10a extending in the reciprocating direction B is provided on a pipe 11a constituting a frame portion of the recording apparatus 1 of the example
  • a rail 10b extending in the reciprocating direction B is provided on a pipe 11b constituting the frame portion of the recording apparatus 1 of the example.
  • bearing portions are received in the rail 10a and the rail 10b, and thus, the carriage 6 of the example is guided to move in the reciprocating direction B by the rail 10a and the rail 10b.
  • the recording mechanism 4 of the example is divided into a moving region 18 of the carriage 6, an airflow receiving chamber 13 to be described later, and a cable accommodating portion 36 which accommodates cables, or the like for transmitting data and signals to the carriage 6 by the case body 12 and a wall portion 16. Also, by such a configuration, the mist, which is generated when the ink is discharged from the recording head 7 in the moving region 18 of the carriage 6, can be moved to the airflow receiving chamber 13, and an invasion of the mist into the cable accommodating portion 36 is suppressed.
  • Fig. 4 to Fig. 7 illustrates schematic views of the carriage 6 of the example.
  • Fig. 4 is a schematic perspective view of the carriage 6 of the example
  • Fig. 5 is a schematic plan view of the carriage 6 of the example
  • Fig. 6 is a schematic front view of the carriage 6 of the example
  • Fig. 7 is a schematic side view of the carriage 6 of the example.
  • sub-carriages 5 including a plurality of the recording heads 7 are provided in multiple (six), and Fig. 4 and Fig. 5 are perspective views illustrating an arrangement of the plurality of recording heads 7 provided in each of the sub-carriages 5.
  • the plurality (six) of sub-carriages 5 can be detachable to the carriage 6 of the example.
  • the plurality of recording heads 7 are alternately arranged from each other (staggered).
  • a substrate, and the like are provided in each of the sub-carriages 5, and as illustrated in Fig. 6 , a sub-carriage fan 21 for cooling the substrate is provided therein.
  • a frame type portion 37 which is for suppressing the mist of the ink discharged from the recording head 7 from flying up and the mist from becoming attached to the sub-carriage 5, is provided.
  • the frame type portion 37 functions as a separator which suppresses flying-up of the mist with respect to a region where the mist near the recording head 7 is profuse and keeps a region above the sub-carriage 5 in a state where the mist is small.
  • Such a carriage 6 of the example is provided with the frame type portion 37 and the air current generation portions 38a and 38b, and particularly, has a configuration hardly affected by the mist.
  • the invention is not limited to the recording apparatus including the carriage which has such a configuration.
  • Fig. 8 is a block diagram of the recording apparatus 1 of the example.
  • the CPU 24 is connected to a head driving portion 28 for driving the recording head 7 through the system bus 25.
  • the CPU 24 is connected to a motor driving portion 29, which is for driving the carriage motor 30, a transportation motor 31, a feeding motor 32, a winding motor 33, a carriage fan motor 19, and a sub-carriage fan motor 22, through the system bus 25.
  • the carriage motor 30 is a motor for moving the carriage 6 including the recording head 7.
  • the transportation motor 31 is a motor for driving the driving roller 8.
  • the feeding motor 32 is a driving motor of the feeding portion for feeding the recording medium which is set in a feeding portion (not illustrated) to the transportation mechanism 3.
  • the winding motor 33 is a driving motor for driving a winding mechanism (not illustrated) which is for winding the recording medium on which recording is performed.
  • the carriage fan motor 19 is a motor for driving the carriage fan 20.
  • the sub-carriage fan motor 22 is a motor for driving the sub-carriage fan 21.
  • Fig. 9 is a schematic perspective view illustrating the moving region 18 of the carriage 6 and the airflow receiving chamber 13 which are parts of the recording mechanism 4 of the recording apparatus 1 of the example.
  • Figs. 10A and 10B are schematic front views illustrating the moving region 18 of the carriage 6 and the airflow receiving chamber 13 which are parts of the recording mechanism 4 of the recording apparatus 1 of the example.
  • Fig. 10A is a view illustrating airflows W1 in the moving region 18 of the carriage 6 and the airflow receiving chamber 13 when the carriage 6 is moved in a direction B1 of the reciprocating direction B
  • Fig. 10B is a view illustrating airflows W2 in the moving region 18 of the carriage 6 and the airflow receiving chamber 13 when the carriage 6 is moved in a direction B2 of the reciprocating direction B.
  • the carriage 6 of the example is capable of moving the carriage 6 in a moving range R1 from the position P1 to the position P2 in the reciprocating direction B.
  • the recording apparatus 1 of the example includes a case body 12 which covers the moving region 18 of the carriage 6, and includes the airflow receiving chamber 13 which is capable of receiving the airflow W1 pushed from the moving region 18 of the carriage 6 by moving the carriage 6 in the direction B1 as illustrated in Fig. 10A .
  • the airflow receiving chamber 13 is also capable of receiving the airflow W2 pushed from the moving region 18 of the carriage 6 by moving the carriage 6 in the direction B2 as illustrated in Fig. 10B .
  • the recording apparatus 1 of the example includes the carriage 6 which includes the recording head 7 discharging the ink onto a recording medium and can be moved in the reciprocating direction B and the airflow receiving chamber 13 which receives the airflow W1 and the airflow W2 generated by reciprocating the carriage 6.
  • the recording apparatus 1 of the example has such a configuration, that is, a simple configuration in which the airflow receiving chamber 13 is included, the mist generated when the ink is discharged from the recording head 7 can be moved from the moving region 18 of the carriage 6 using the airflow W1 and the airflow W2 generated due to reciprocation of the carriage 6.
  • the airflow receiving chamber 13 of the example extends in the reciprocating direction B, and a receiving port 49 of the airflow W1 and the airflow W2 is provided on both ends of the reciprocating direction B. That is, with such a configuration, the airflow receiving chamber 13 of the example can receive the airflow W1 and the airflow W2 from the receiving ports 49 of both ends in the moving directions B1 and B2 of both sides in the reciprocating direction B. For this reason, the mist generated when the ink is discharged from the recording head 7 can be efficiently moved from the moving region 18 of the carriage 6.
  • the airflow receiving chamber 13 of the example includes a capturing portion 17, which is capable of capturing the mist generated when the ink is discharged from the recording head 7 in the vicinity of the receiving ports 49 of both ends in the reciprocating direction B. Therefore, the mist moved from the moving region 18 of the carriage 6 can be captured and recovered by the capturing portion 17.
  • the capturing portion 17 of the example is a filter which is capable of capturing the mist by transmitting the airflow and is configured to have a filter type which is fixed to the airflow receiving chamber 13; however, if the mist can be captured, a configuration of the capturing portion 17 is not particularly limited.
  • the filter described above is an absorbing member which is capable of absorbing the attached liquid.
  • Figs. 11A and 11B are schematic perspective views illustrating the recording mechanism 4 of the recording apparatus 1 according to Example 2 of the invention.
  • Fig. 11A corresponds to Fig. 10A illustrating the recording mechanism 4 of the recording apparatus 1 according to Example 1
  • Fig. 11B corresponds to Fig. 10B illustrating the recording mechanism 4 of the recording apparatus 1 according to Example 1.
  • the airflow receiving chamber 13 of Example 1 is configured to have the capturing portion 17 which is a filter type fixed to airflow receiving chamber 13.
  • the airflow receiving chamber 13 of Example 2 is configured to have a plurality of flexible filters (absorbing members), in which a part (upper portion) thereof is fixed inside of the airflow receiving chamber 13 and is hanging inside of the airflow receiving chamber 13 as illustrated in Figs. 11A and 11B .
  • the capturing portion 17 of the example can change a posture thereof by the airflow W1 and the airflow W2, and does not shield the airflow W1 and the airflow W2 generated by reciprocation of the carriage 6 inside of the airflow receiving chamber 13. That is, the recording apparatus 1 of the example efficiently receives the airflow W1 and the airflow W2 including the mist from the moving region 18 of the carriage 6 in the airflow receiving chamber 13, and the mist can be captured and recovered in the airflow receiving chamber 13.
  • the airflow receiving chamber 13 of the example is configured to have the plurality of flexible filters in both end parts of the reciprocating direction B; however, it is not limited to such a configuration, and the flexible filters may be provided on the entirety of the inside of the airflow receiving chamber 13, for example, and flexible filters may be provided in which a center part in the reciprocating direction B has a density higher than that of both of the end parts thereof.
  • Figs. 12A and 12B are schematic perspective views illustrating the recording mechanism 4 of the recording apparatus 1 according to Example 3 of the invention.
  • Fig. 12A corresponds to Fig. 10A illustrating the recording mechanism 4 of the recording apparatus 1 of the Example 1
  • Fig. 12B corresponds to Fig. 10B illustrating the recording mechanism 4 of the recording apparatus 1 of the Example 1.
  • Example 1 configuration members common to those of Example 1 and Example 2 are illustrated by the same numerals, and detailed descriptions thereof will not be repeated.
  • Example 2 can be modified in a similar way.
  • Figs. 13A and 13B are schematic perspective views illustrating the recording mechanism 4 of the recording apparatus 1 according to Example 3 of the invention.
  • Fig. 13A corresponds to Fig. 10A illustrating the recording mechanism 4 of the recording apparatus 1 of the Example 1
  • Fig. 13B corresponds to Fig. 10B illustrating the recording mechanism 4 of the recording apparatus 1 of the Example 1.
  • the airflow receiving chamber 13 of Example 1 to Example 3 includes the capturing portion 17 which is capable of capturing the mist generated when the ink is discharged from the recording head 7.
  • the airflow receiving chamber 13 of the example includes a back-flow preventing portion 42 instead of the capturing portion 17. For this reason, back-flowing of the airflow W1 and the airflow W2 including the mist in the moving region 18 of the carriage 6 from the airflow receiving chamber 13 can be suppressed.
  • the airflow inflow portion 46 of the example includes the rotation shaft 47 along the transportation direction A and the lid portion 48 capable of being rotated in the rotation direction C around the rotation shaft 47 as a reference Turning of the lid portion 48 from the inside of the airflow inflow portion 46 toward the outside is regulated by a part of the case body 12.
  • the airflow W3 and the airflow W4 flows-in on the inside of the airflow inflow portion 46 by turning the lid portion 48 inside of the airflow inflow portion 46, and flowing-out of the airflow W3 and the airflow W4 to the outside of the airflow inflow portion 46 is suppressed by regulating the lid portion 48 using a part of the case body 12.
  • a configuration of the airflow inflow portion 46 is not particularly limited.
  • covering the moving region 18 of the carriage 6 means that other parts may be covered when at least the moving region 18 of the carriage 6 is covered, but it does not need to be covered in a sealed state.
  • the airflow receiving chamber 13 extends in the reciprocating direction B and includes the receiving ports 49 of the airflow W1 and the airflow W2 at the both ends of the reciprocating direction B. That is, in the moving directions B1 and B2 of both sides in the reciprocating direction B, the airflow W1 and the airflow W2 can be received from the receiving ports 49 of the both sides. Therefore, the mist generated when the liquid is discharged from the discharging portion 7 can be efficiently moved from the moving region 18 of the carriage 6.
  • the airflow receiving chamber 13 includes a capturing portion 17 which is capable of capturing mist generated when the liquid is discharged from the discharging portion 7. Therefore, the mist moved from the moving region 18 of the carriage 6 can be captured and recovered by the capturing portion 17.
  • the capturing portion 17 is a filter in which a part thereof is fixed to the inside of the airflow receiving chamber 13 and is capable of changing a posture thereof by the airflow W1 and the airflow W2.
  • the capturing portion 17 is a filter in which a part thereof is fixed to an inside of the airflow receiving chamber 13 and is capable of changing a posture thereof by the airflow W1 and the airflow W2. Therefore, the airflow W1 and the airflow W2 generated by reciprocation of the carriage 6 inside of the airflow receiving chamber 13 are not shielded, that is, the airflow W1 and the airflow W2 including the mist from the moving region 18 of the carriage 6 are efficiently received in the airflow receiving chamber 13, and the mist can be captured and recovered in the airflow receiving chamber 13.
  • the airflow receiving chamber 13 is capable of exhausting the air.
  • the airflow receiving chamber 13 is capable of exhausting the air. Therefore, the airflow W1 and the airflow W2 generated by reciprocation of the carriage 6 can be efficiently received in the airflow receiving chamber 13.
  • the airflow receiving chamber 13 includes the back-flow preventing portion 42.
  • an airflow inflow portion 46 is provided on the moving region 18 in reciprocation of the carriage 6, and is capable of flowing-in the airflow W3 and the airflow W4 through a path different from the airflow receiving chamber 13. That is, the airflow W4 can be generated from the airflow W1 in a direction in an order of the airflow inflow portion 46, the moving region 18 of the carriage, and the airflow receiving chamber 13. Therefore, the mist generated when the liquid is discharged from the discharging portion 7 can be efficiently moved from the moving region 18 of the carriage 6.

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  • Ink Jet (AREA)
EP16160812.0A 2015-03-26 2016-03-17 Liquid discharging apparatus Active EP3085537B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015064570A JP6551653B2 (ja) 2015-03-26 2015-03-26 液体吐出装置

Publications (2)

Publication Number Publication Date
EP3085537A1 EP3085537A1 (en) 2016-10-26
EP3085537B1 true EP3085537B1 (en) 2019-04-17

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EP16160812.0A Active EP3085537B1 (en) 2015-03-26 2016-03-17 Liquid discharging apparatus

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JP (1) JP6551653B2 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6181271B1 (ja) * 2016-11-07 2017-08-16 ローランドディー．ジー．株式会社 インクジェットプリンタ

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10765A (ja) * 1996-06-14 1998-01-06 Canon Inc インクジェット記録装置
JP2001191558A (ja) * 2000-01-12 2001-07-17 Canon Inc インクジェット記録装置およびインクミスト回収方法
JP2003334973A (ja) * 2002-05-22 2003-11-25 Canon Inc 印字カートリッジ及びインクジェット記録装置
JP2004130699A (ja) * 2002-10-11 2004-04-30 Canon Inc インクジェット記録装置
JP4154585B2 (ja) 2003-02-10 2008-09-24 セイコーエプソン株式会社 液体ミストの排除装置及び液体ミストの排除方法
JP2005145021A (ja) * 2003-11-20 2005-06-09 Fuji Xerox Co Ltd インクジェット記録装置
JP2007331283A (ja) * 2006-06-16 2007-12-27 Canon Inc インクジェット記録装置
JP2009255424A (ja) * 2008-04-17 2009-11-05 Ricoh Co Ltd 画像形成装置
JP5656452B2 (ja) * 2010-05-18 2015-01-21 キヤノン株式会社 記録装置
WO2013127703A1 (en) * 2012-03-02 2013-09-06 Oce-Technologies B.V. Inkjet marking module and method for conditioning inkjet marking module
EP2974869A4 (en) * 2013-03-15 2016-12-28 Seiko Epson Corp DEVICE FOR DISCHARGING DROPLETS
JP6171486B2 (ja) 2013-03-29 2017-08-02 セイコーエプソン株式会社 液体吐出装置

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Also Published As

Publication number Publication date
JP6551653B2 (ja) 2019-07-31
JP2016182756A (ja) 2016-10-20
EP3085537A1 (en) 2016-10-26

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