CN201064975Y - Ink-jet ink box - Google Patents

Abstract

The utility model relates to an ink box of inkjet printing machine, which comprises a box body and a box cover, wherein an ink storage cavity, a monitoring room, and a buffer room, the bottom wall of the box body is arranged with an ink outlet a buoy is arranged in the monitoring room, the monitoring room and the buffer room along the plumb direction are arranged in the limited range of two walls of the ink storage cavity in the same direction, the geometric center of the buffer room is communicated with the lowest position of the ink storage cavity along the plumb direction, the lowest position of the monitoring room along the plumb direction is communicated with the lowest position of the buffer room in the same direction, the ink outlet is communicated with the lowest position of the buffer room along the plumb direction. The buoy comprises a balance block, a lever and a flashboard, the bottom wall of the flashboard along the plumb direction is supported on a fixed support shaft that is basically parallel with the outer side wall of the monitoring room along the plumb direction. The balance block is connected with the flashboard via the lever. The ink box can monitor the ink capacity in inner cavity of the ink box efficiently.

Description

Ink-jet box

Technical field

The utility model relates to the printing consumables field, especially for the print cartridge of ink-jet printer.This print cartridge relies on the simple cavity storage ink of its inside, and disposes ink surplus monitoring chamber.Its ink monitoring mode is realized with the coordinated of monitoring light path with the buoy that rises and falls up and down with ink level.

Background technology

Ink jet printing device is equipped with an Ink box device usually and printhead is connected.Printer is when carrying out print job, and a prerequisite primary condition is Ink box device ink supply equably continuously.Yet in print procedure, along with the consumption of ink, in order to keep the poised state of print cartridge inside, extraneous air can be inhaled in the print cartridge ink storage chamber.Enter in the print cartridge ink storage chamber air the word car be under the running status change bigger, perhaps ink near exhaust situation under can enter ink gun with ink, phenomenons such as inkless or broken string appear when causing typewriting.Therefore, the ink storage capacity that detects in the print cartridge is very necessary.Such technical conceive once appearred previously, detect ink storage level in the print cartridge by estimation and the quantity of ink that consumed when printing of accumulative total at every turn, yet this measuring and calculating mode exists than mistake, so that under print cartridge is still laid in the situation of more ink the false alarm that ink exhausts appears, cause the ink waste, the miscue that print cartridge is still laid in the capacity ink perhaps under the situation that ink exhausts, occurs, cause blank printing or fuzzy printing etc.

The deficiency that aforementioned measuring and calculating mode exists is able to be filled up by the buoy detection technique that occurs subsequently to a great extent.The buoy detection technique realizes the detection of ink storage quantity in the print cartridge by its proportion is set with the state of ink come-up sinking less than the buoy of ink in print cartridge.In addition, also have similar float type detection technique, disclose a kind of print cartridge, by the ink container that can be used for storing ink with place the shutter mechanism of ink container to constitute as application for a patent for invention CN200410083213.Shutter mechanism comprises a connecting rod that supports swingably.Connecting rod one end is provided with optical gate, and relative the other end is provided with float.Float weight and volume are set by this way, when the overall optical brake mechanism is arranged in the ink, the first direction that connecting rod moves under the effect of buoyancy that is produced and gravity is opposite with the second direction that wherein connecting rod moves under the effect of buoyancy and gravity when a part of float exposes from ink level.Ink remaining amount can be instructed to out under the situation of for example undue influence of ink surface tension that can not be interfered.

Although can avoid ink to exhaust the phenomenons such as false alarm that the back occurs to a great extent by the ink storage quantity that detects in the print cartridge, but cause bubble to be sneaked in the ink more greatly in the variation of word car running status, perhaps print cartridge causes under its ink storage chamber is still laid in the capacity ink but can not be the situation of the abundant emptying of gas that mixes in it because of its reasons in structure, air in the ink storage chamber still can not be avoided fully with the phenomenon that ink enters ink gun and print cartridge monitoring chamber, so that the situation that printing writing breaks or testing result is inaccurate happens occasionally.

The utility model content

The utility model purpose is to provide a kind of cartridge of ink-jet printer, and this print cartridge can prevent that air from entering the monitoring chamber with ink, and the air of avoiding being entered causes excessive influence to monitoring indoor buoy, so that monitor the deposit situation of ink storage chamber ink inside in real time.

Cartridge of ink-jet printer according to the above-mentioned purpose design comprises box body and lid.Be provided with the monitoring chamber that is used to preserve the ink storage chamber of ink and is used to check the ink storage level in the box body.The diapire of box body is provided with the ink outlet port that is used for to ink-jet printer supply ink.Monitor the indoor buoy that is provided with.This print cartridge also comprises surge chamber.Surge chamber and monitoring chamber along the position of vertical simultaneously in ink storage chamber two chamber wall restricted portions in the same direction.Surge chamber is communicated with the minimum position of vertical of ink storage chamber at the position of self about geometric center.The minimum position of monitoring chamber on vertical is communicated with surge chamber minimum position in the same direction.Ink outlet port is communicated with the minimum position of surge chamber on vertical.Buoy comprises balance weight, connecting rod and flashboard.Flashboard is supported in the monitoring chamber along the diapire of vertical and is basically parallel on the fixed support axle that is provided with on the lateral wall of vertical.Balance weight connects flashboard through connecting rod.

Usually, aforementioned cartridge of ink-jet printer, in the plane perpendicular to back shaft, the center of gravity of its flashboard is in the line of balance weight with back shaft.

Preferably, lead is stated cartridge of ink-jet printer, and the density of its balance weight is less than the density of the ink that print cartridge was installed in.

Cartridge of ink-jet printer of the present utility model, when monitoring indoor when retaining the ink that does not influence the balance weight floating state, the balance weight that is subjected to buoyant support provides support power to flashboard simultaneously, cooperate for flashboard provides two strong points with back shaft, make flashboard remain on the position that is complementary with the printer optical de-tection means.When the indoor ink of monitoring reduces to when influencing the balance weight floating state gradually, balance weight floats gradually to the surface of ink, and descends along with the decline of ink level.Variation along with the balance weight location status, it also progressively changes to the supporting point position that flashboard provides, and then impels the rotation of flashboard formation around back shaft, leaves original position, lose the state that is complementary with the printer optical de-tection means, with the indoor ink remaining amount of this Status Flag monitoring.Owing to be subjected to the spacing of back shaft, paddle member and balance block part all keep released state with the inwall of monitoring chamber, the surface tension of ink liquid existence just can not produce undue influence to flashboard and balance weight like this, and flashboard and balance weight can not adsorb because of the surface tension of ink or stick between the monitoring chamber interior walls together more mutually.Like this, flashboard and balance weight just can not be subjected to monitoring the restriction of chamber interior walls under the ink surface tension effect, and then balance weight and flashboard are floated in the ink with the state of suspending.

The drawing explanation

Fig. 1 the utility model cartridge of ink-jet printer perspective view.

Fig. 2 the utility model cartridge of ink-jet printer cutaway view.

The buoy structure schematic diagram of Fig. 3 the utility model cartridge of ink-jet printer.

Fig. 4 the utility model cartridge of ink-jet printer ink detection process schematic diagram one.

Fig. 5 the utility model cartridge of ink-jet printer ink detection process schematic diagram two.

The specific embodiment

Referring to Fig. 1,2, the utility model cartridge of ink-jet printer structure.Word segment relates in the specification accompanying drawing orientation is installed to state on the ink-jet printer based on print cartridge 1, and promptly the placement state with accompanying drawing 1,2 is the orientation basis, at this state, and the ink outlet port 302 sensing vertical bottoms of print cartridge 1.

It comprises box body 3 and lid 2.Lid 2 with seal form be sealed on box body 3 upper ends uncovered on.

In box body 3, the diapire 310 that be provided with the ink storage chamber 301 that is used for preserving ink, runs through box body 3 be used for to the ink outlet port 302 of ink-jet printer supply ink, be used to monitor ink storage ink storage chamber 301 in monitoring chamber 303, be used to separate ink and gas and store the surge chamber 304 of part ink complementaryly and be positioned at the buoy 305 of monitoring chamber 303.The bottom of ink outlet port 302 is set up usually and is cylindrical cavity 306.Be provided with the elastic sealing element with the ink supply pin of ink-jet printer coupling near the lower end surface of cylindrical cavity 306, that is rubber seal 307.After irritating China ink, generally all adopt the lower end surface in heat sealing film material 308 sealing cylinder chambeies 306, and sealing ring 307 is sealed on cylindrical cavity 306 inside.

In print cartridge 1, surge chamber 304 and monitoring chamber 303 along the integral position of vertical simultaneously between two the outer end chamber wall of ink storage chamber 301 on this direction, promptly in upper wall 309 and diapire 310 restricted portions.Surge chamber 304 is communicated with the minimum position of ink storage chamber 301 along vertical at the position of self about geometric center, is embodied in ink storage chamber 301 is extended to about geometric center of surge chamber 304 together by diapire 310 by the ink channel of offering 311 on its diapire 310 ink-feeding tube 312 connections.The monitoring minimum position of chamber 303 on vertical is communicated with surge chamber 304 minimum position in the same direction by connected entrance 313.The ink outlet port 302 also minimum position on surge chamber 304 verticals keeps being communicated with it.Like this, surge chamber 304, monitoring chamber 303 and ink outlet port 302 just have a common connection position in print cartridge 1.

The buoy 305 that is arranged in monitoring chamber 303 comprises balance weight 314, connecting rod 315 and flashboard 316 on constituting, referring to 2,3.Flashboard 316 is supported on the back shaft 318 along the diapire 317 of vertical.Back shaft 318 is fixed on monitoring chamber 303 and is basically parallel on the lateral wall 319 of vertical.Balance weight 314 is fixedly connected with flashboard 316 through connecting rod 315.In the present embodiment, the center of gravity of flashboard 316 in perpendicular to the plane of back shaft 318 in the line of balance weight 314 and back shaft 318.Keep the density of the density of balance weight 314 simultaneously less than the ink that is installed in the print cartridge 1.The chamber wall of monitoring chamber 303, especially it adopts the preparation of transparent material or light transmissive material towards the chamber of outside wall, to cooperate the propagation of optical de-tection means emitted light beams in this chamber wall of ink-jet printer.

The mechanism of action of buoy 305 is seen shown in Figure 3, when in monitoring chamber 303, storing the ink that floods (referring to Fig. 4) or part immersion (referring to Fig. 5) buoy 305, because the center of gravity of flashboard 316 is in the line of balance weight 314 and back shaft 318, like this, the gravity that flashboard 316 is subjected to just forms the moment of α in the counterclockwise direction to the back shaft shown in Figure 3 318 that is equivalent to balance pivot, and the ink buoyancy that it is subjected to just forms the moment of β along clockwise direction to the back shaft shown in Figure 3 318 that is equivalent to balance pivot.The action effect that two opposite each other moment forms buoy 305 can be according to actual needs, obtains different results by adjusting flashboard 316 with respect to the proportion of ink.When for example flashboard 316 proportions were greater than ink, 305 on 316 pairs of buoys of flashboard can form and make it around back shaft 318 rotation of α in the counterclockwise direction; When flashboard 316 proportions were less than or equal to ink, the action effect that 316 pairs of buoys of flashboard 305 form was decided on its submerged state in ink.Same reason, because the proportion of balance weight 314 is less than ink, thereby it also is to decide on its submerged state in ink to action effect that buoy 305 forms.When balance weight 314 integral body are immersed in the ink, it forms the moment of β along clockwise direction to buoy 305, this moment can overcome the effect of 316 couples of buoy 305 formed α in the counterclockwise direction of flashboard, make flashboard 316 remain on vertical placement shown in Figure 2 or be posted by state on monitoring chamber 303 lateral walls 319, could realize when this state need as scheme to be full of ink in the monitoring shown in Figure 4 chamber 303, so this state is identified as the state that print cartridge is full of ink; When balance weight 314 parts are soaked in the ink, its moment that buoy 305 is formed progressively is converted into points to α counterclockwise, flashboard 316 and then form and shown in Figure 5ly depart from vertical placement or be posted by state on monitoring chamber 303 lateral walls 319, the optical monitoring system that this state is printed machine is identified as the state that ink consumes gradually or exhausted.

Among Fig. 2, on the diapire 310 of ink storage chamber 301, offer the opening that is used to keep the Ink Cartridge inner pressure balance, this opening be embodied in one from diapire 310 along ink storage chamber 301 the upwardly extending gas passage 320 of vertical.The high-order bit of the nearly ink storage chamber 301 of one termination of gas passage 320, almost near the inwall of lid 2 towards ink storage chamber 301,301 vertical extends downward the outside of ink storage chamber 301 to the other end from diapire 310 along ink storage chamber.Gas passage 320 extends to that filling has the waterproof sponge 321 that can prevent ink leakage in the outside port of ink storage chamber 301.The outside port that gas passage 320 extends to ink storage chamber 301 adopts the sealing film sealing usually under the accumulating state of print cartridge 1.Under the normal ink supply state of print cartridge 1, to the air communicating pipe road on top, the air guide port 322 that promptly is positioned on the lid 2 keeps being communicated with outside atmosphere ink storage chamber 301, to keep the internal balance of ink storage chamber 301 by its vertical.Under print cartridge 1 accumulating state, air guide port 322 adopts sealing film or the sealing of sealing plug usually.

Claims (3)

1. ink-jet box, comprise box body and lid, be provided with the monitoring chamber that is used to preserve the ink storage chamber of ink and is used to check the ink storage level in the described box body, the diapire of described box body is provided with the ink outlet port that is used for to described ink-jet printer supply ink, the indoor buoy that is provided with of described monitoring, it is characterized in that also comprising surge chamber, described surge chamber and described monitoring chamber along the position of vertical simultaneously in described ink storage chamber two chamber wall restricted portions in the same direction, described surge chamber is communicated with the minimum position of vertical of described ink storage chamber at the position of self geometric center, the minimum position of described monitoring chamber on vertical is communicated with described surge chamber minimum position in the same direction, described ink outlet port is communicated with the minimum position of described surge chamber on vertical, described buoy comprises balance weight, connecting rod and flashboard, described flashboard is supported in described monitoring chamber along the diapire of vertical and is basically parallel on the fixed support axle that is provided with on the lateral wall of vertical, and described balance weight connects described flashboard through described connecting rod.

2. ink-jet box according to claim 1, the center of gravity that it is characterized in that described flashboard in perpendicular to the plane of described back shaft is in the line of described balance weight with described back shaft.

3. ink-jet box according to claim 1 and 2 is characterized in that the ink density that the density of described balance weight is installed in less than described print cartridge.

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