EP1162074A1 - Appareil de nettoyage d'une bande transporteuse ayant un dispositif distributeur de solvent - Google Patents

Appareil de nettoyage d'une bande transporteuse ayant un dispositif distributeur de solvent Download PDF

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Publication number
EP1162074A1
EP1162074A1 EP01304438A EP01304438A EP1162074A1 EP 1162074 A1 EP1162074 A1 EP 1162074A1 EP 01304438 A EP01304438 A EP 01304438A EP 01304438 A EP01304438 A EP 01304438A EP 1162074 A1 EP1162074 A1 EP 1162074A1
Authority
EP
European Patent Office
Prior art keywords
belt
web
cleaning
transport
set forth
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.)
Withdrawn
Application number
EP01304438A
Other languages
German (de)
English (en)
Inventor
Le Pham
Wesley Baxter Roche
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.)
HP Inc
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of EP1162074A1 publication Critical patent/EP1162074A1/fr
Withdrawn legal-status Critical Current

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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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/17—Cleaning arrangements
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/007—Conveyor belts or like feeding devices

Definitions

  • the present invention relates generally to transport belts (sometimes referred to in the art as conveyor belts), particularly to a method and apparatus for cleaning a transport belt and, more specifically, to cleaning a print media transport belt in an ink-jet hard copy apparatus.
  • ink-jet technology is relatively well developed.
  • Commercial products such as computer printers, graphics plotters, copiers, and facsimile machines employ ink-jet technology for producing hard copy.
  • the basics of this technology are disclosed, for example, in various articles in the Hewlett-Packard Journal, Vol. 36, No. 5 (May 1985), Vol. 39, No. 4 (August 1988), Vol. 39, No. 5 (October 1988), Vol. 43, No. 4 (March 1992), Vol. 43, No. 6 (December 1992) and Vol. 45, No.1 (February 1994) editions.
  • Ink-jet devices are also described by W.J. Lloyd and H.T. Taub in Output Hardcopy [sic] Devices, chapter 13 (Ed. R.C. Durbeck and S. Sherr, Academic Press, San Diego, 1988).
  • FIGURE 1 depicts a hard copy apparatus, in this exemplary embodiment a computer peripheral, ink-jet printer, 101.
  • a housing 103 encloses the electrical and mechanical operating mechanisms of the printer 101. Operation is administrated by an electronic controller 102 (usually a microprocessor or application specific integrated circuit (“ASIC") controlled printed circuit board) connected by appropriate cabling to a computer (not shown).
  • ASIC application specific integrated circuit
  • Cut-sheet print media 105 loaded by the end-user onto an input tray 120, is fed by a suitable paper-path transport mechanism (not shown) to an internal printing station where graphical images or alphanumeric text is created.
  • a carriage 109 mounted on a slider 111, scans the print medium.
  • An encoder subsystem 113 is provided for keeping track of the position of the carriage 109 at any given time.
  • An associated set of replaceable or refillable ink reservoirs 117"X" is coupled to the pen set by ink conduits 119. Ink is deposited on the sheet of media 105 at a "print zone,” or "printing station,” 107. Once a printed page is completed, the print medium is ejected onto an output tray 121.
  • the carriage scanning axis is conventionally designated the x-axis
  • the print media transit axis is designated the y-axis
  • the printhead firing direction is designated the z-axis.
  • FIGURE 2 is a schematic depiction of another ink-jet hard copy apparatus 210 as may be associated with the present invention.
  • a writing instrument 115X is provided with a printhead 214 having drop generators including nozzles for ejecting ink droplets onto an adjacently positioned print medium, e.g., a sheet of paper 105, in the apparatus' printing zone 107.
  • a perforated, endless-loop belt 232 is one type of known manner printing zone input-output paper transport.
  • a motor 233 having a drive shaft 230 is used to drive a gear train 235 coupled to a belt pulley, or roller, 238 mounted on a fixed axle 239.
  • a biased idler wheel 240 provides appropriate tensioning of the belt 232.
  • the belt rides over a platen 236 (sometimes including heating devices) in the print zone 107 associated with a known manner vacuum induction system 237.
  • the paper sheet 105 is picked from an input supply (not shown) and its leading edge 254 is delivered to a guide 250, 252 where a pinch wheel 242 in contact with the belt 232 takes over and acts to transport the paper sheet 105 through the printing zone 107 (the paper path is represented by arrow 231).
  • an output roller 244 in contact with the belt 232 receives the leading edge 254 of the sheet 105 and continues the paper transport until the trailing edge 255 of the now printed page is released.
  • Ink-jet technology is used to describe the present invention even though it has wider applicability because the ink-jet environment typifies a transport belt use where the local environment may contain contaminants such as ink mist and paper dust which can soil a transport belt and clog perforations in a vacuum belt or even be sucked through the belt, contaminating the subjacent platen and other subsystems of the apparatus.
  • the latest generation of ink-jet printers has found commercial success for economical color printing of high resolution graphics, including photographic reproductions, which require edge-to-edge paper printing (referred to as "full bleed"). Overspray and aerosol will build up on the belt over time. Not only does this affect performance of the belt itself, ink on the belt can be transferred undesirably to the back side of the print, particularly if the ink remains in a liquid or semi-fluidic state.
  • a method and apparatus for cleaning a perforated, transport belt has belt surface cleaner mechanisms that include a moveable, consumable web.
  • a solvent dispensing mechanism is fluidically coupled to create a wet region of web material upstream (with respect to the belt motion) of a dry region of web material.
  • Mechanisms for selectively engaging and disengaging the belt surface cleaner mechanisms ensure free belt travel during flexible material transport and the cleaning of both surfaces during cleaning cycles.
  • the system includes consumable piece-part elements for refurbishing and remanufacturing.
  • the present invention provides a method for cleaning a transport belt, including the steps of: positioning a cleaning web in non-contacting juxtaposition to a transport surface of the belt; and selectively repositioning the web into contact with the transport surface.
  • the present invention provides a transport belt cleaning apparatus including: mechanisms for cleaning non-contactingly juxtaposed on each side of the belt; and mechanisms for engaging the cleaning means with the belt.
  • the present invention provides an ink-jet hard copy apparatus including: a transport belt for media input-output; a belt inner-surface cleaner; and a belt outer-surface cleaner, including a movable web, wherein the inner-surface cleaner and outer-surface cleaner are releasably engagable with the belt.
  • the present invention provides a method for re-furbishing an ink-jet printer having a belt cleaning apparatus, including the steps of: removing the cleaning apparatus; and replacing the cleaning apparatus.
  • the present invention provides a consumable ink-jet belt cleaning apparatus including: mounts for positioning cleaners in contraposition to each side of a belt; and cleaners affixed to the mounts.
  • the present invention provides an ink-jet hard copy apparatus endless-loop, vacuum-actuated, media transport belt cleaning system including: a renewable first belt cleaning subsystem mounted adjacent an inner surface of the belt, including at least one belt wiper; a renewable second belt cleaning subsystem mounted adjacent an outer surface of the belt, including at least one web, wherein the first belt cleaning subsystem and second belt cleaning subsystem are contraposed with the belt therebetween and are selectively engagable and disengagable with the respective inner surface and outer surface.
  • a belt cleaning subsystem 300 in accordance with the present invention is shown in an exemplary embodiment implementation as part of an ink-jet hard copy apparatus 210' schematically represent by a framework 210".
  • the present invention comprises two subsystems: a belt 232 inner-surface cleaner 301 and a belt outer-surface cleaner 302, wherein the "outer-surface” is a vacuum-holding transport surface of the belt.
  • the cleaner 301, 302 subsystems are preferably independently serviceable.
  • the cleaner 301, 302 subsystems are subjacent a vacuum-box-platen 236.
  • the inner-surface cleaner 301 includes an inner-surface wiper mount 303, such as a stiff, flat plate - e.g. , a metal, sheet metal, or plastic plate - with a mounting flange 303'.
  • the wiper mount 303 should be at least as wide as the belt 232 cross-sectional dimension and have a length to optimize wiping area and wiper absorbent capacity as the belt passes between the drive rollers 239, 240.
  • a belt inner-surface wiper 305 is affixed to the mount 303 such that a wiping surface is adjacent the inner-surface of the belt 232.
  • the wiping surface to belt inner-surface have a clearance, e.g., approximately one millimeter ("mm"), when not being used to clean the inner-surface.
  • this wiper 305 be fabricated of a dry, absorbent, lint-free material.
  • a three-to-five millimeter thick, felt pad, or a relatively high density, absorbent, sponge material may be employed.
  • Launderable, reusable, pad materials can be employed.
  • Disposable pad materials can be employed.
  • the contact surface of wiper, or pad, 305 material should be relatively smooth and somewhat compliant in order to clean the belt surface effectively. If made of a fiber-based material, the contact surface of the wiper 305 could be singed or otherwise treated as would be known in the art to prevent fibers from tracking onto the belt 232. All wiper materials should be soft enough not to damage belt surfaces.
  • the inner-surface wiper 305 can be glued to the mount 303 such that the entire subsystem is disposable and replaceable. Alternatively, the inner-surface wiper 305 can be releasably secured to the mount 303 in a known manner so that the belt inner-surface wiper 305 is removable and replaceable with a clean wiper replacement pad for a reusable mount 303.
  • the inner-surface wiper 305 should be equal to or slightly greater than the belt 232 width dimension.
  • the outer-surface belt cleaner 302 subsystem could be a mirror embodiment of the inner-surface belt cleaner 301, subjacent the belt 232 opposing the inner-surface belt cleaner 301 subsystem.
  • Each subsystem 301, 302 can employ a known manner elevating subsystem to engage respective wipers with the belt 232 inner and outer surfaces.
  • the outer surface of the belt 232 will have a far greater degree of deposits, it has been found to be preferable to use both wet and dry wiping of at least the outer surface.
  • a wet pressure pad 307 and a dry pressure pad 309 are provided in series for sequentially wiping the belt 232 outer surface.
  • the wet pressure pad 307 is upstream and the dry pressure pad 309 downstream.
  • a pad holder 311 is mounted in the apparatus 210' subjacent the belt 232 and opposing at least some part of the inner-surface belt cleaner 301 subsystem.
  • the pad holder 311 is provided with positive pressure biasing members 313, 315 for each pad 307, 309.
  • the pad holder 311 is mounted on at least one return biasing member 317.
  • a clearance for example in the range of approximately one to three millimeters, is provided between the reach of each pads' 307, 309 cleaning surface and the outer surface of the belt 232 when the subsystem 302 is disengaged.
  • the belt 232 during a paper transport and printing operational cycle through the print zone 107 is thus free to travel between the inner-surface cleaner 301 and the outer-surface cleaner 302.
  • the elevating subsystem 319 in this embodiment a cam having a mechanical linkage (not shown) for end-user manipulation) lifts the holder 311 until the gap between the wet pressure pad 307 and dry pressure pad 309 in the holder 311 and the belt surface is closed.
  • the holder 311 elevating subsystem 319 continues upward until the gap between the inner-surface belt cleaner 301 is also closed. Thus, both surfaces of the belt 232 are being wiped by the belt wiping pads 305, 307, 309 when the elevating subsystem 319 is engaged. It should be recognized that separate elevating subsystems can be provided for each cleaner subsystem 301, 302.
  • the wet pressure pad 307 is pre-soaked with a solvent appropriate to the type of ink employed (or other aerosol chemical being used in a non-ink-jet environment).
  • the dry pressure pad 317 should be absorbent of the solvent and ink residue and solvent mixtures.
  • Either the entire belt outer-surface cleaner 302 subsystem can be replaceable as a unit or each pad can be separately replaceable in the same manner as with the inner-surface wiper 305.
  • the wet and dry cleaning pads may be replaceable at every cleaning cycle or be designed to be more durable as needed.
  • the inner wiper 305 can be of a material having a higher surface energy than that of the transport surface wipers 307, 309 in order to help solvent to be drawn through the belt perforations.
  • both sides of the belt 232 are "washed.” Downstream, the inner surface wiper 305 and the dry pressure pad 309 will absorb the mixture of solvent and particulate residue washed from the belt 232.
  • the cam 319 is reversed and the belt 232 released from the cleaner 301, 302 subsystems. While a predetermined pressure of the wipers against the belt surfaces can be tailored, it should also be recognized that solvent can be transferred to the belt via capillary forces created by the interface between the belt and wipers when the belt is moving.
  • the inner surface cleaning subsystem can also be movable into engagement with the belt only during a cleaning operation.
  • the outer-surface cleaner 302 includes a rolled web 321 mounted on a rotating shaft 322.
  • the web 321 is a rolled supply of belt wiping material, preferably an absorbent fabric such as a fiber-based polyester, rayon, absorbent cotton cloth, or the like textile.
  • a web material having a thickness in the range of approximately 45um to 140um has been employed.
  • the web 321 is mounted on the shaft 322 for free rotation with the shaft.
  • a known manner tensioner 323 and out-of-web sensor 325 are associated with the web 321.
  • the web 321 material is stretched from the roll across two support shafts, or adjunct rollers, 327, 328 to span the pressure pads 307, 309 subjacent the belt 232 outer surface.
  • the web 321 is then captured by a driven, web take-up spool 329.
  • the direction of rotation of the take-up spool, and thus the web material, is indicated by arrow 331.
  • the spool 329 can be driven by a stepper motor to advance the web 321 in predetermined increments so that a fresh segment of web material is properly positioned subjacent the belt 232 for each cleaning cycle.
  • a clearance of approximately 1mm to 3mm between the cleaner web 321 and belt 232 transport surface is provided when the web is disengaged from the belt transport surface.
  • a solvent suitably selected as appropriate for a particular ink formulation (or other particulate matter sought to be “washed” from the belt) is provided in a solvent dispensing subsystem 333 (schematically represented for any known manner local or remote, replaceable, refillable or otherwise serviceable solvent dispensing subsystem) with fittings 335 for fluidically coupling solvent to the wet pressure pad 307.
  • a solvent dispensing subsystem 333 Schematically represented for any known manner local or remote, replaceable, refillable or otherwise serviceable solvent dispensing subsystem
  • fittings 335 for fluidically coupling solvent to the wet pressure pad 307.
  • Known manner techniques for dispensing and monitoring of solvent to the wet pressure pad 307 - such as with appropriate valves and pumps - can be employed.
  • the cam 319 is used to lift the holder 311 until the web material is in contact with the belt 232 outer surface and the inner-surface wiper 305 is in contact with the belt inner surface.
  • Solvent is pumped into the wet pressure pad 307, generally at a fixed delivery rate or to a predetermined appropriate volume. The solvent will be transferred to the web 321 material superjacent the wet pressure pad 307 and thus to the belt 232 outer surface.
  • the web 321 can be wound onto the spool 329 in a direction 331 opposite of the belt 232 motion 231 to cause a stronger scrubbing force against the belt outer surface.
  • the web 321 will carry away dissolved ink on the belt 232 outer surface from the contact-cleaning zone. Some solvent will go through the belt perforations and onto the inner surface thereof, cleaning some ink from the perforations in addition to the inner surface itself. Any solvent solution left on the belt 232 downstream of the wet pressure pad 307 will be wiped off, absorbed by the web being pressed against the belt outer surface by the dry pressure pad 309.
  • the web 321 can be stationary during the cleaning cycle for winding onto the spool 329 after the holder 311 is lowered to disengage the inner-surface wiper 305 and web 321 from respective belt 232 surfaces. This has been found to increase the useful effective life of the web 321 material; however it should be noted that during the cleaning cycle itself the web material then does not carry dissolved ink away from the cleaning zone.
  • the outer-surface cleaner 302 can be a completely replaceable, unitary, module or an in situ refurbishable subsystem wherein components such as the web 321, wipers 307, 309, and solvent dispensing subsystem 333 are individually replaceable or otherwise serviceable.
  • Used pads 305, 307, 309 and web material can be manufactured to be disposable, end-user replaceable, or remanufacture-type consumables.
  • the belt 232 In operation during an paper transport cycle through the print zone 107, the belt 232 is preferably free to travel between the belt lower span's superjacent inner-surface cleaner 301 and a subjacent web 321 span region.
  • the elevating subsystem 319 lifts the holder 311 until the gap between the web 321 region spanning the wet pressure pad 307 and dry pressure pad 309 and the belt 232 transport surface is closed. Then, the holder 311 elevating subsystem 319 continues upward until the gap between the inner-surface belt cleaner 301 and belt inner surface is also closed. Thus, both surfaces of the belt 232 are being wiped when the elevating subsystem 319 is engaged.
  • the inner-surface belt cleaner 301 can also be separately selectively positionable such that reverse bending of the belt 232 and belt fatigue can be avoided.
  • the wet and dry pads 307, 309 and therefore separate regions of the web 231 can be made selectively engagable with the belt transport surface separately.
  • either the entire belt outer-surface cleaner 302 subsystem can be replaceable as a unit or each pad and the web can be separately replaceable in the same manner as with the inner-surface wiper 305. It is also contemplated that depending upon the frequency of cleaning, the web 321 may be removed from the take-up spool 329 and re-loaded onto the shaft 322 and reused until such time as it is no longer effective in cleaning the belt 232 outer surface. In a more costly system, an automated rewind mechanism can be provided. The wet and dry cleaning pads 305, 307, 309 may be replaceable at the same time as the web 321 or be designed to be more durable as needed.
  • the cam 319 is turned (counter-clockwise in this illustration) to raise the holder 311 and contained pressure pads 307, 309 up against the web 321 spanning the pads which then is pushed into contact with the moving belt 232 ( see direction arrow 231) until the biasing members 313, 315 exert enough force to push the belt 232 upward until its inner surface is against the inner-surface wiper 305.
  • solvent will transfer from the pad to the web by contact.
  • a predetermined pressure between the two can be provided to cause some solvent to be squeezed out of the wet pad 307 and through the web 321 material. Since the belt 232 is perforated, some solvent will be passed through the perforations to the inner surface of the belt and, consequently, the inner-surface wiper 305. Thus, both sides of the belt 232 are "washed.” Downstream, the inner-surface wiper 305 and the web 321 which are in contact with the dry pressure pad 309 will absorb the mixture of solvent and particulate residue washed from the belt 232. After a predetermined or recommended time of contact, the cam 319 is reversed and the belt 232 released from the cleaner 301, 302 subsystems.
  • FIGURE 4 shows an alternative embodiment of the belt outer-surface cleaner 302 subsystem.
  • the solvent represented by the arrow labeled "SOLVENT IN," is in a containment and delivery subsystem (not shown) located remotely from the outer-surface cleaner 302 subsystem, coupled to the wet pressure pad 307 by a fitting 400.
  • the solvent containment can be refillable or replaceable or otherwise serviceable.
  • the dry pressure pad 309 and wet pressure pad 307 are spaced further apart.
  • a pair of additional web support shafts, or rollers, 401, 402 are mounted in-board of each pad 307, 309 to create separate span regions 403, 404 of the web superjacent to each pad individually.
  • a biased, central web roller 405 can be mounted in the holder 311 between the pads 307, 309 and lower than the pads, forming therebetween an inter-pad loop region of web 321 to move the dry pressure pad 309 a greater effective distance away from the wet pressure pad 307 and preventing cross-contamination.
  • solvent solution may wick and spread on the web in different areal dimensions. Therefore, any specific implementation should be tailored to prevent cross-contamination between wet and dry regions. The distance between a dry and wet pad may be varied. With careful design, the roller 405 might be eliminated, reducing manufacturing complexity and cost.
  • the dry pad 309 is used to increase the cleaning effectiveness, but when the solvent solution is benign (such as just or mostly water) or highly evaporative such that no residue is left on the belt when the next media sheet is obtained at the input, the dry pad subsystem also can be eliminated.
  • the solvent fitting 400 might instead be coupled to the central web roller 405 in a manner to dispense the solvent directly onto the web 321 itself rather than via wet pressure pad 307, creating a larger effective wet area of web material as illustrated schematically by orthogonal projection FIGURE 4A .
  • the present invention has been described in an implementation for an ink-jet hard copy apparatus, but this is not intended as a limitation (nor should any be implied) as it is known to use vacuum belts and the like in many conveyor systems for flexible materials. While the outer-surface cleaner 302 is shown as two replaceable pads, one wet and one dry, a single pad having a solvent wet region upstream and separated by gap from a dry, solvent-absorbing region may also be employed to reduce manufacturing costs and to simplify pad replacement. It should be recognized that automated, electromechanical devices can be employed for activating the cleaner mechanisms to wipe the belt.

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EP01304438A 2000-05-30 2001-05-21 Appareil de nettoyage d'une bande transporteuse ayant un dispositif distributeur de solvent Withdrawn EP1162074A1 (fr)

Applications Claiming Priority (2)

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US58402000A 2000-05-30 2000-05-30
US584020 2000-05-30

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EP1162074A1 true EP1162074A1 (fr) 2001-12-12

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2047996A3 (fr) * 2007-10-10 2009-05-13 Teac Corporation Unité de nettoyage et imprimante
WO2015125440A1 (fr) 2014-02-21 2015-08-27 Seiko Epson Corporation Appareil d'enregistrement, et procédé de nettoyage d'appareil d'enregistrement
CN114056853A (zh) * 2021-11-05 2022-02-18 北方联合电力有限责任公司包头第三热电厂 一种火力发电厂用煤炭输送机构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0448080A1 (fr) * 1990-03-21 1991-09-25 Cefla Soc. Coop. A R.L. Convoyeur à bande mince autonettoyant pour l'installation de peinture ou de teinturerie
US5239926A (en) * 1992-01-29 1993-08-31 Datacard Corporation Card printer apparatus and method
US5526028A (en) * 1995-05-26 1996-06-11 Xerox Corporation Liquid ink printer transport belt cleaner
EP0749919A1 (fr) * 1995-06-22 1996-12-27 Laporte E.S.D. Limited Appareil nettoyeur pour convoyeurs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0448080A1 (fr) * 1990-03-21 1991-09-25 Cefla Soc. Coop. A R.L. Convoyeur à bande mince autonettoyant pour l'installation de peinture ou de teinturerie
US5239926A (en) * 1992-01-29 1993-08-31 Datacard Corporation Card printer apparatus and method
US5526028A (en) * 1995-05-26 1996-06-11 Xerox Corporation Liquid ink printer transport belt cleaner
EP0749919A1 (fr) * 1995-06-22 1996-12-27 Laporte E.S.D. Limited Appareil nettoyeur pour convoyeurs

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2047996A3 (fr) * 2007-10-10 2009-05-13 Teac Corporation Unité de nettoyage et imprimante
EP2236305A3 (fr) * 2007-10-10 2010-10-20 Teac Corporation Unité de nettoyage et imprimante
US8042589B2 (en) 2007-10-10 2011-10-25 Teac Corporation Cleaning unit and printer
WO2015125440A1 (fr) 2014-02-21 2015-08-27 Seiko Epson Corporation Appareil d'enregistrement, et procédé de nettoyage d'appareil d'enregistrement
CN106029389A (zh) * 2014-02-21 2016-10-12 精工爱普生株式会社 记录装置和记录装置的清洁方法
KR20160119158A (ko) * 2014-02-21 2016-10-12 세이코 엡슨 가부시키가이샤 기록 장치 및 기록 장치의 세정 방법
EP3107737A4 (fr) * 2014-02-21 2018-03-21 Seiko Epson Corporation Appareil d'enregistrement, et procédé de nettoyage d'appareil d'enregistrement
US10052896B2 (en) * 2014-02-21 2018-08-21 Seiko Epson Corporation Recording apparatus, and cleaning method of recording apparatus
CN114056853A (zh) * 2021-11-05 2022-02-18 北方联合电力有限责任公司包头第三热电厂 一种火力发电厂用煤炭输送机构
CN114056853B (zh) * 2021-11-05 2023-10-20 北方联合电力有限责任公司包头第三热电厂 一种火力发电厂用煤炭输送机构

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