CN100556699C - Keep recovery device and ink-jet recording apparatus - Google Patents

Keep recovery device and ink-jet recording apparatus Download PDF

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Publication number
CN100556699C
CN100556699C CNB2006101625890A CN200610162589A CN100556699C CN 100556699 C CN100556699 C CN 100556699C CN B2006101625890 A CNB2006101625890 A CN B2006101625890A CN 200610162589 A CN200610162589 A CN 200610162589A CN 100556699 C CN100556699 C CN 100556699C
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CN
China
Prior art keywords
waste liquid
recovery device
ink
keeping
accommodating container
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Expired - Fee Related
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CNB2006101625890A
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Chinese (zh)
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CN1974218A (en
Inventor
末冈秀规
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Ricoh Co Ltd
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Ricoh Co Ltd
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Abstract

The present invention relates to keep recovery device and ink-jet recording apparatus.Ink-jet recording apparatus is discharged the seal China ink from the nozzle of ink jet print head, is recorded on the recording medium.Attract the residual seal China ink in the described nozzle, to guarantee the seal China ink stream of ink jet print head, the described recovery device of keeping makes from the nozzle ink jet of ink jet print head stable.The recovery device of keeping of the present invention is provided with the waste liquid accommodating container, is used to take in the Yin Mo by described attraction action sucking-off, in the described waste liquid position of dripping, in described waste liquid accommodating container bottom, is provided with the solvent storage position that is used for storage of solvent.Therefore, form the fixed of agent, can prevent that image from forming the column accumulation of agent by preventing the image that becomes waste liquid in the waste liquid accommodating container.

Description

Keep recovery device and ink-jet recording apparatus
Technical field
The present invention relates to keep recovery device and ink-jet recording apparatus, more particularly, relate to following technology: in order to keep the recovery ink jet print head, from the beginning nozzle sucking-off image forms agent, this image is formed agent be accommodated in the waste liquid accommodating container, prevent that the image formation agent that becomes waste liquid in described waste liquid accommodating container is fixed.
Background technology
The ink-jet recording apparatus that writes down from the nozzle discharge image formation agent of ink jet print head, when device is dormant state, be provided with the balladeur train standby in situ of ink jet print head, if long-time the placement, seal China ink that increases because of drying viscosity or foreign matter adhere to etc. sometimes, make spray nozzle clogging.In addition, sometimes in nozzle interior, because of gassing, the air damping phenomenon takes place, normally ink-jet.
So, in the past, the multiple recovery device of keeping was proposed, by the lid mechanism that contacts with nozzle face, prevent drying, entrained air is sneaked into foreign matter, or the negative pressure generation means by being communicated with lid mechanism, the sucking-off foreign matter, the tackify China ink, bubbles etc. make it discharge from ink jet print head.
Keep one of recovery device as this, can enumerate the spy and open the device of being put down in writing in the 2002-347260 communique (following brief note is " patent documentation 1 "), keep in the recovery device at this, can not discharge the bubble that in nozzle, takes place or sneak into owing to only drive the pressurization liquid chamber, so, make and attract lid and nozzle face to connect airtight, close the atmospheric open valve of connection, under this state, drive sucking pump, from suction pipe all nozzles of ink jet print head are applied negative pressure, China ink all pressurized fluid are indoor from all nozzles is discharged to the waste liquid accommodating container.Like this, the bubble of being sneaked into from all nozzles China ink that the sucking-off pressurized fluid is indoor, is discharged, tackify China ink, foreign matter etc. in the airtight zone that comprises whole nozzles of ink jet print head.
But the meeting tackify was fixed between the image formation agent warp in the waste liquid accommodating container of ink-jet recording apparatus was long-term.And the fixed image of tackify forms agent in the waste liquid accommodating container, in the position of dripping from suction pipe, piles up and is column.The volume calculations prerequisite of waste liquid accommodating container is to form agent as the image of waste liquid flatly to be accommodated in the container, therefore, waste liquid is full of image that sensor piles up described column and forms agent and flase drop may take place survey, although or do not detect, and the useless black liquid of piling up spills into outside the accommodating container.
Summary of the invention
The present invention puts forward for solving the existing problem of above-mentioned prior art, the objective of the invention is to, provide a kind of by the image that prevents to become in the waste liquid accommodating container waste liquid form agent fixed, prevent that image from forming that the agent column piles up keep recovery device and ink-jet recording apparatus.
To achieve these goals, the present invention proposes following scheme:
(1) a kind of recovery device of keeping, ink-jet recording apparatus is discharged the seal China ink from the nozzle of ink jet print head, is recorded on the recording medium.Attract the residual seal China ink in the described nozzle, to guarantee the seal China ink stream of ink jet print head, the described feasible nozzle ink jet from ink jet print head of recovery device of keeping is stablized, and it is characterized in that:
Be provided with the waste liquid accommodating container, be used to take in Yin Mo by described attraction action sucking-off;
In the described waste liquid position of dripping,, be provided with the solvent storage position that is used for storage of solvent, the above-mentioned described waste liquid of dissolution with solvents that is stored in described solvent storage position in described waste liquid accommodating container bottom.
Therefore, form the fixed of agent, can prevent that image from forming the column accumulation of agent by preventing the image that becomes waste liquid in the waste liquid accommodating container.
(2) the keeping in the recovery device of (1), it is characterized in that:
Described solvent storage position is a solvent cell, makes described waste liquid accommodating container bottom form concavity.
Therefore, be set to the solvent cell at solvent storage place, can prevent that effectively column from piling up with few solvent by the position of dripping at the waste liquid of easily piling up.
(3) the keeping in the recovery device of (2), it is characterized in that:
Be provided with towards the downward-sloping rake of described solvent cell in described waste liquid accommodating container bottom.
Therefore, compare for the plane occasion with the bottom surface, the solvent that disperses can be got back to solvent cell along towards the downward-sloping rake of solvent cell, can prevent the column accumulation effectively with few solvent.
(4) the keeping in the recovery device of (1), it is characterized in that:
Described solvent storage position is in described waste liquid accommodating container bottom at least one to be set to form towards the rake that has a down dip.
Therefore, the solvent that disperses can be got back to the concavity position, can prevent the column accumulation effectively with few solvent.
(5) any described keeping in the recovery device in (1)-(4) is characterized in that:
Described solvent is that glycerine is an organic solvent.
Therefore,, can dissolve and contain glycerine because solvent is that glycerine is an organic solvent, ethylene glycol, water, organic pigment, or the image of carbon black forms agent prevents waste liquid fixed of image formation agent, can prevent the column accumulation.
(6) any described keeping in the recovery device in (1)-(4) is characterized in that:
Be provided with seal means, be arranged on the described waste liquid accommodating container, be used to seal the waste liquid inlet peristome of waste liquid of dripping.
Therefore, can prevent that solvent from dispersing to external container.
(7) the keeping in the recovery device of (6), it is characterized in that:
Described seal means is a diaphragm seal, uses bonding agent to be bonded in described waste liquid inlet peristome.
(8) the keeping in the recovery device of (6), it is characterized in that:
Described seal means is a sealing-plug, is pressed into described waste liquid inlet peristome.
(9) the keeping in the recovery device of (6), it is characterized in that:
Described seal means is a seal cover, covers described waste liquid inlet peristome.
(10) keep in the recovery device in that (8) or (9) are described, it is characterized in that:
Described sealing-plug or seal cover are formed by elastomer.
Therefore, the seal height can use repeatedly.
(11) a kind of ink-jet recording apparatus is characterized in that:
Carry each described recovery device of keeping in (1)-(10).
Therefore, the image that can prevent to become in the waste liquid accommodating container waste liquid forms the fixed of agent, and the image that can prevent to become waste liquid forms the column of agent and piles up, simultaneously, can separate the waste liquid that disappears and be full of the flase drop survey of sensor, provide reliability high ink-jet recording apparatus for the image formation agent of column accumulation.
According to recovery device and the ink-jet recording apparatus kept of the present invention, be provided with the waste liquid accommodating container, be used to take in Yin Mo by described attraction action sucking-off, in the waste liquid position of dripping,, be provided with the solvent storage position that is used for storage of solvent in waste liquid accommodating container bottom.Therefore, form the fixed of agent, can prevent that image from forming the column accumulation of agent by preventing the image that becomes waste liquid in the waste liquid accommodating container.
Description of drawings
Fig. 1 is the formation plane of the image forming part that carries the ink-jet recording apparatus of keeping recovery device of the present invention.
Fig. 2 is a formation stereogram of keeping recovery device of the present invention.
Fig. 3 is the formation stereogram of the waste liquid accommodating container of Fig. 2.
Fig. 4 A-4B is the waste liquid liquid level propradation sectional view of waste liquid accommodating container.
Fig. 5 A-5B is the column stacking states sectional view of waste liquid.
The formation sectional view of keeping waste liquid accommodating container in the recovery device that Fig. 6 relates to for the present invention the 1st embodiment.
The formation sectional view of keeping waste liquid accommodating container in the recovery device that Fig. 7 relates to for the present invention the 2nd embodiment.
The formation sectional view of keeping waste liquid accommodating container in the recovery device that Fig. 8 relates to for the present invention the 3rd embodiment.
The formation sectional view of keeping waste liquid accommodating container in the recovery device that Fig. 9 A-9C relates to for the present invention the 4th embodiment.
Concrete example
Below, with reference to description of drawings most preferred embodiment of the present invention.
The size of the component parts of in following the invention process form, putting down in writing, material, shape, relative configuration relation etc. only exemplifies, and the present invention is not limited thereto, and the device formation that can be suitable for according to the present invention suitably changes.
Fig. 1 is the formation plane of the image forming part that carries the ink-jet recording apparatus of keeping recovery device of the present invention.In the image forming part of the ink-jet recording apparatus shown in this figure, supporting maintenance balladeur train 12 by guide 11 and guide not shown in the figures can move along main scanning direction, synchronously be with 15 by being erected between drive pulley (not diagram) and the driven pulley 14 by main scanning motor (not diagram), carry out motion scan at main scanning direction.
On this balladeur train 12, carry the ink jet print head 16 of ejection shades of colour drop, balladeur train 12 is moved along main scanning direction, make paper S transport, discharge drop from ink jet print head 16 and form image, constitute so-called " shuttle " type (shuttle) along paper carriage direction (sub scanning direction).Also can adopt line-type recording head.
In the present embodiment, ink jet print head 16 is made of five droplet discharging heads, be respectively 2 droplet jetting head 16k1,16k2 of ejection black (Bk) seal China ink, and each 1 droplet jetting head 16c, the 16m, the 16y that spray cyan (C) Yin Mo, magenta (M) Yin Mo and yellow (Y) seal China ink respectively, provide seal China ink of all kinds by each auxiliary tank (not diagram) that carries on balladeur train 12.
In ink jet print head 16, as the pressure-generating device that the Yin Mo that prints (pressure generating chamber) in the black stream is pressurizeed (driving means), can use the piezo-electric type structure, or the fever type structure, or the electrostatic structure etc.The oscillating plate that described piezo-electric type structure is used piezoelectric element to make and formed the wall that prints black stream is out of shape, and the black stream internal volume of seal is changed, and discharges ink droplet; Described fever type structure uses heating resistor to heat printing China ink in the black stream of seal, and the pressure that uses gassing to produce is discharged ink droplet; Described electrostatic structure makes and dispose relative with electrode of oscillating plate that forms the wall that prints black stream makes the oscillating plate distortion by the electrostatic force that produces between oscillating plate and electrode, and the black stream internal volume of seal is changed, and discharges ink droplet.
At the nonprinting region of balladeur train 12 scanning directions one side, configuration is used to keep, recover the stable recovery device 17 of keeping of the present invention of nozzle venting of ink jet print head 16.This keeps recovery device 17 lift-launch aftermentioned sucking pumps (not diagram), and comprise five Hydra lids 18, an attraction is used for the Wiper plate 20 of the nozzle face of wiping record head 16 with covering 19, and the sky row who is used to carry out writing down inoperative drop discharge (empty row) accepts parts 21 etc.Described Hydra lid 18 comprises five Hydra lid 18y, 18m, and 18c, 18k1,18k2 is used for respectively the nozzle face of five record heads 16 being carried out capping.
At the nonprinting region of the opposite side of balladeur train 12 scanning directions, dispose and be used for discharging the drop that record is not worked and discharge the sky row of (empty row) and accept parts (not diagram) from five record heads 16.Row accepts on the parts at this sky, with five openings of record head 16 corresponding formation (not diagram).
Fig. 2 is a formation stereogram of keeping recovery device of the present invention.In the figure, use the identical component part of symbolic representation among Fig. 1.The recovery device 17 of keeping of the present invention comprises five Hydra lids 18, an attraction is used for the Wiper plate 20 of the nozzle face of wiping record head 16 with covering 19, and the sky row who is used to carry out writing down inoperative drop discharge (empty row) accepts parts 21, sucking pump 26, waste liquid accommodating container 25.Described Hydra lid 18 comprises five Hydra lid 18y, 18m, and 18c, 18k1,18k2 is used for respectively the nozzle face of five record heads 16 being carried out capping; The described sucking pump 26 airtight zones that cover the full nozzle of ink jet print head attract the indoor printing ink of pressurized fluid from full nozzle; The image as waste liquid that described waste liquid accommodating container 25 is taken in sucking-off forms agent.
Fig. 3 is the formation stereogram of the waste liquid accommodating container of Fig. 2, and Fig. 4 is the waste liquid liquid level propradation sectional view of waste liquid accommodating container.As shown in Figure 3, waste liquid accommodating container 25 is provided with waste liquid inlet peristome 25-1 and waste liquid is full of sensor 25-2.Take in the image that becomes waste liquid that is attracted in the container and form agent, described waste liquid inlet peristome 25-1 is located at the top of container, and described waste liquid is full of the substantial middle that sensor 25-2 is located at container top, is used to detect the interior waste liquid of container and reaches full state.
In the waste liquid accommodating container 25 of this formation, shown in Fig. 4 A, sucking pump 26 uses and attracts with cover 19, and the nozzle of discharging head from each drop of the ink jet print head 16 of Fig. 1 attracts waste liquid, through the waste liquid peristome 25-1 that enters the mouth waste liquid 27 is accommodated in the described waste liquid accommodating container 25.Tackify is not fixed as if waste liquid 27, and these waste liquid 27 liquid levels can level rise.Shown in Fig. 4 B, if waste liquid 27 increments, liquid level rises, and reaches described waste liquid and is full of sensor 25-2.Described waste liquid is full of sensor 25-2 and is provided with absorber, and this absorber is a white, if suck waste liquid 27, then is colored, and is full of sensor 25-2 by described waste liquid and detects to be judged as and be full of.In the present embodiment, described waste liquid is full of the reflection type optical breaker of sensor 25-2 use towards absorber.
But, as mentioned above, under the low wet environment of high temperature, be not such accumulation.That is, shown in Fig. 5 A, waste liquid is piled up and is column or coniform, and the low wet environment of high temperature is that the image that becomes waste liquid 27 forms the easily dry environment of agent, under this environment, has the local tendency that column is piled up that becomes.If continue to pile up, then shown in Fig. 5 B, the waste liquid of piling up for column 27 spills into outside the waste liquid accommodating container 25.And described waste liquid is full of sensor 25-2 and does not detect, and can pollute ink-jet recording apparatus inside.
So, keep in the recovery device of the present invention, pile up in order to prevent the fixed column that causes of waste liquid, as shown in Figure 6, below waste liquid inlet peristome 25-1 straight or from position that the waste liquid 27 that each nozzle of the ink jet print head 16 of Fig. 1 attracts directly drips, in waste liquid accommodating container 25 bottoms, be provided for taking in the solvent cell 29 of solvent 28, described solvent 28 is used to dissolve image and forms agent.In the present embodiment, image forms agent and contains organic pigment or carbon black, and viscosity is 6~10cP under 25 ℃ of environment.Perhaps contain glycerine, ethylene glycol, water, organic pigment, or carbon black if solvent 28 glycerine are organic solvent, can dissolve the waste liquid 27 that image forms agent.Like this, by below waste liquid inlet peristome 25-1 straight, solvent cell 29 being set, the image formation agent that will become waste liquid from waste liquid inlet peristome 25-1 splashes into this solvent cell 29, and the image formation agent by solvent 28 dissolvings becoming waste liquid can prevent the column accumulation effectively.
The formation sectional view of keeping waste liquid accommodating container in the recovery device that Fig. 7 relates to for the present invention the 2nd embodiment.As shown in the drawing, the bottom surface 30 of this waste liquid accommodating container 25 is downward-sloping towards solvent cell 29, can not make waste liquid 27 and solvent 28 disperse, and gathers.The heeling condition of bottom surface 30 can be unidirectional inclination, also can be that sliding peviform tilts, or the groove shape tilts.
In addition, as mentioned above, the glycerine viscosity that is contained in the image formation agent is big, and is mobile poor, do not flow along ramped bottom surface 30 sometimes.Therefore, be preferably, the glycerine ratio in the solvent 28 of dissolving image formation agent is 10~50%.Form in the agent at image, the glycerine containing ratio is more than 10%, can obtain moistening effect.When the glycerine containing ratio is 50%, under 20 ℃ of environment, viscosity is below the 10cP, and is mobile no problem, can obtain gap tilt effect.
The formation sectional view of keeping waste liquid accommodating container in the recovery device that Fig. 8 relates to for the present invention the 3rd embodiment.As shown in the drawing, towards the straight below of waste liquid inlet peristome 25-1 or from position that the waste liquid 27 that each nozzle of the ink jet print head 16 of Fig. 1 attracts directly drips, form downward-sloping concavity position 32, this concavity position 32 is made of bottom surface 30 and/or bottom surface 31.Solvent 28 accumulates in this concavity position that is made of downward-sloping bottom surface.Therefore, solvent can be got back to concavity position 32 along inclination, can prevent fixedly effectively, has the stable consolidation effect that prevents.
The formation sectional view of keeping waste liquid accommodating container in the recovery device that Fig. 9 A-9C relates to for the present invention the 4th embodiment.Shown in Fig. 9 A,, use the waste liquid inlet peristome 25-1 of the bonding waste liquid accommodating container 25 of bonding agent by diaphragm seal 33 as seal means.Shown in Fig. 9 B, use elastomeric sealing-plug 34 as seal means, the waste liquid of waste liquid accommodating container 25 inlet peristome 25-1 is pressed into sealing and fills in the row sealing relatively.Shown in Fig. 9 C, use elastomeric seal cover 35 as seal means, the waste liquid of waste liquid accommodating container 25 inlet peristome 25-1 covers the sealing lid and seals relatively.
According to present embodiment, when for example dispatching from the factory, in waste liquid accommodating container 25, store in advance and be used to dissolve solvent 28 occasions that image forms agent, can prevent that solvent 28 in the waste liquid accommodating container 25 is because of vibration or reason such as fall and disperse to ink-jet recording apparatus inside.In addition, by using diaphragm seal, cheap as seal means.Have again,, can use repeatedly by using sealing-plug or seal cover as seal means.
Above with reference to description of drawings embodiments of the invention, but the present invention is not limited to the foregoing description.Can do all changes in the technology of the present invention thought range, they all belong to protection scope of the present invention.

Claims (9)

1. keep recovery device for one kind, ink-jet recording apparatus is discharged the seal China ink from the nozzle of ink jet print head, be recorded on the recording medium, attract the residual seal China ink in the described nozzle, to guarantee the seal China ink stream of ink jet print head, the described feasible nozzle ink jet from ink jet print head of recovery device of keeping is stablized, and it is characterized in that:
Be provided with the waste liquid accommodating container, be used to take in Yin Mo by described attraction action sucking-off;
In the described waste liquid position of dripping, in described waste liquid accommodating container bottom, be provided with the solvent cell that becomes concavity for the framework bottom of the described waste liquid accommodating container of being formed at of storage of solvent, also be provided with in the framework of described waste liquid accommodating container bottom, in the face of the decline rake of described solvent cell, in order to prevent that described waste liquid from becoming column to pile up the above-mentioned described waste liquid of dissolution with solvents that is stored in described solvent cell in the position of dripping.
2. the recovery device of keeping as claimed in claim 1 is characterized in that:
In described waste liquid accommodating container bottom at least one described decline rake is set.
3. the recovery device of keeping as claimed in claim 1 or 2 is characterized in that:
Described solvent is that glycerine is an organic solvent.
4. the recovery device of keeping as claimed in claim 1 or 2 is characterized in that:
Be provided with seal means, be arranged on the described waste liquid accommodating container, be used to seal the waste liquid inlet peristome of waste liquid of dripping.
5. the recovery device of keeping as claimed in claim 4 is characterized in that:
Described seal means is a diaphragm seal, uses bonding agent to be bonded in described waste liquid inlet peristome.
6. the recovery device of keeping as claimed in claim 4 is characterized in that:
Described seal means is a sealing-plug, is pressed into described waste liquid inlet peristome.
7. the recovery device of keeping as claimed in claim 4 is characterized in that:
Described seal means is a seal cover, covers described waste liquid inlet peristome.
8. as claim 6 or the 7 described recovery devices of keeping, it is characterized in that:
Described sealing-plug or seal cover are formed by elastomer.
9. ink-jet recording apparatus is characterized in that:
Carry each described recovery device of keeping in the claim 1 to 8.
CNB2006101625890A 2005-11-30 2006-11-28 Keep recovery device and ink-jet recording apparatus Expired - Fee Related CN100556699C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005344919A JP2007144904A (en) 2005-11-30 2005-11-30 Maintenance recovery unit and ink jet recorder
JP344919/05 2005-11-30

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CN1974218A CN1974218A (en) 2007-06-06
CN100556699C true CN100556699C (en) 2009-11-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021150234A1 (en) * 2020-01-24 2021-07-29 Hewlett-Packard Development Company, L.P. Waste containers for waste print fluid

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JP5168138B2 (en) 2008-12-29 2013-03-21 株式会社リコー Image forming apparatus
JP5923877B2 (en) * 2010-09-21 2016-05-25 セイコーエプソン株式会社 Liquid ejector
JP2012086550A (en) * 2010-09-21 2012-05-10 Seiko Epson Corp Liquid collection container and liquid injecting apparatus

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JPH07227974A (en) * 1994-02-18 1995-08-29 Copyer Co Ltd Ink jet recording apparatus
JP3391968B2 (en) * 1995-02-13 2003-03-31 キヤノン株式会社 Ink jet printing apparatus and waste liquid treatment method and apparatus in the apparatus
JP2001310487A (en) * 2000-04-28 2001-11-06 Ricoh Co Ltd Apparatus for sustaining function of recording head and ink jet recorder comprising it
JP2003054009A (en) * 2001-08-09 2003-02-26 Canon Inc Waste ink tank, integrated ink tank and ink jet recorder
JP4614600B2 (en) * 2001-09-21 2011-01-19 株式会社リコー Inkjet recording device
JP2004058320A (en) * 2002-07-25 2004-02-26 Sharp Corp Waste ink reservoir of inkjet recorder
JP2004174766A (en) * 2002-11-25 2004-06-24 Seiko Epson Corp Cleaning method of liquid ejector and liquid ejector
JP4407139B2 (en) * 2003-03-20 2010-02-03 セイコーエプソン株式会社 Liquid ejector

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021150234A1 (en) * 2020-01-24 2021-07-29 Hewlett-Packard Development Company, L.P. Waste containers for waste print fluid

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