CN201064972Y

CN201064972Y - Ink box for ink-jet printer

Info

Publication number: CN201064972Y
Application number: CNU2007200551955U
Authority: CN
Inventors: 徐长江; 黄振超; 吴泽; 王士豪; 曾玉祥
Original assignee: Print Rite Technology Development Co Ltd of Zhuhai
Current assignee: Print Rite Technology Development Co Ltd of Zhuhai
Priority date: 2007-08-03
Filing date: 2007-08-03
Publication date: 2008-05-28
Anticipated expiration: 2017-08-03

Abstract

The utility model relates to an ink box of inkjet printer, which comprises a box body and a box cover, wherein an ink storage cavity, a monitoring room, an air barrier room and a buffer room, the bottom wall of the box body is arranged with an ink outlet for supplying ink for the inkjet printing machine. The ink storage cavity and the monitoring room keep communicated, the monitoring room comprises a buoy with density less than that of ink, the box cover is used to seal the box body, the highest position of the ink storage cavity in the plumb direction is communicated with the air batter room via the lowest position of the air barrier room in the plumb direction via ink flow pipeline, the lowest position of the air barrier room in the plumb direction is communicated with the lowest position of the buffer room in the plumb direction via air exchange pipeline, the upper part of the buffer room in the plumb direction is communicated with the atmosphere. The ink box can prevent air bubbles from entering the monitoring room effectively, thereby facilitating improving test accuracy of ink storage amount.

Description

Cartridge of ink-jet printer

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 structure 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.The air that enters in the print cartridge ink storage chamber changes greatly in word car running status, 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.Previous once occurred such technical conceive, detected ink storage level in the print cartridge by estimation and the quantity of ink that totally consumed when printing 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 that blank printing or printing writing blur 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 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 print cartridge ink storage chamber still can not be avoided fully with the phenomenon that ink enters ink gun and monitoring chamber, so that the situation of printing writing broken string 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, so that monitor the deposit situation of ink storage chamber ink inside in real time.

According to above-mentioned utility model purpose, a kind of print cartridge that is used for ink-jet printer is provided, 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 box body.The diapire of box body is provided with the ink outlet port that is used for to ink-jet printer supply ink.Ink storage chamber and monitoring chamber keep being communicated with.Monitor the indoor buoy that includes its density less than ink.Lid is used for the capping box body.This print cartridge also comprises trapping chamber and surge chamber.Ink storage chamber is communicated with the trapping chamber to minimum position via the vertical of ink flow duct in the trapping chamber to high-order bit at its vertical.The trapping chamber is communicated with surge chamber to minimum position at the vertical of surge chamber via gas exchange pipeline to minimum position at its vertical.Surge chamber is communicated with outside atmosphere on the top of its vertical.

Usually, aforementioned cartridge of ink-jet printer, its ink flow duct has spacing block at the port and the gas exchange pipeline of trapping chamber between the port of trapping chamber.This spacing block is used to separate the ink flow duct and is positioned at the port of trapping chamber and the port that gas exchange pipeline is positioned at the trapping chamber, makes under the duty gas that enters the trapping chamber by surge chamber can not brought into ink storage chamber via the port that the ink flow duct is arranged in the trapping chamber by the ink that flows.

Preferably, aforementioned cartridge of ink-jet printer, its surge chamber port that is communicated with outside atmosphere is between surge chamber vertical middle part and high-order bit.

Cartridge of ink-jet printer of the present utility model structurally is provided with four chambers of each tool function: ink storage chamber, monitoring chamber, trapping chamber and surge chamber, and at the indoor buoy that is provided for identifying the ink storage of monitoring.Like this, just can utilize the indoor buoy that rises and falls up and down with ink level of monitoring to cooperate outside range estimation or optical sensor to monitor the variation of ink storage chamber ink inside storage in real time, to reduce the ink residual quantity.Moreover, make progress because the formed regulating action of drop that ink level exists at vertical by the ink flow duct that is communicated with trapping chamber and ink storage chamber, before the ink in ink storage chamber is consumed, the gas that can prevent cushion chamber directly enters in the ink storage chamber, and then avoid at indoor formation air chamber of monitoring or air bag, cause the locus of buoy to change or floating indefinite, have influence on the accuracy in detection of optical sensor.

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 box body perspective view one.

Fig. 3 the utility model cartridge of ink-jet printer box body perspective view two.

Fig. 4 the utility model cartridge of ink-jet printer cutaway view.

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

The specific embodiment

Referring to Fig. 1,2,3,4, cartridge of ink-jet printer of the present utility model.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 4 is the orientation basis, at this state, and the ink outlet port 302 sensing bottoms of print cartridge 1.

It comprises box body 3 and lid 2.Lid 2 is covered in box body 3 upper ends.

In box body 3, the trapping chamber 303 that the diapire that be provided with the ink storage chamber 301 that is used to preserve ink, runs through box body 3 is used for to the ink outlet port 302 of printer supply ink, be used to separate ink and gas and store the part ink complementaryly, be used to regulate the surge chamber 304 of print cartridge 1 internal pressure and be used to monitor the monitoring chamber 305 of ink storage ink storage chamber 301 in and be positioned at the buoy 306 of monitoring 305 kinds of chambers.The density of buoy 306 is less than ink.The bottom of ink outlet port 302 is set up usually and is cylindrical cavity 307.Be provided with elastic sealing element 308 near the lower end surface of cylindrical cavity 307 with the ink supply pin of ink-jet printer coupling.After irritating China ink, generally all use the lower end surface (Fig. 4) in heat sealing film material 309 sealing cylinder chambeies 307.Ink outlet port 302 keeps being communicated with ink storage chamber 301 and monitoring chamber 305 simultaneously.

The position of monitoring chamber 305 is in abutting connection with ink storage chamber 301, and both keep being communicated with by the through hole 310,311 that lays respectively on monitoring chamber 305 roofs and the diapire, and like this, monitoring chamber 305 and ink storage chamber 301 can be considered as the relation that keeps placed side by side in the horizontal direction.Usually, for guaranteeing accuracy to the monitoring of ink storage chamber 301 ink inside reserves, especially consume the accuracy approach ink storage quantity monitoring when with nothing left at ink, the monitoring chamber 305 the diapire position on vertical comparatively near ink outlet port 302, therefore, the vertical of monitoring chamber diapire through hole 311 to the position also comparatively near ink outlet port 302.

Ink storage chamber 301, is communicated with trapping chamber 303 at the minimum position 314 of trapping chamber 303 verticals via ink flow duct 313 in the high-order bit 312 of its vertical.Trapping chamber 303, is communicated with surge chamber 304 at the minimum position 317 of vertical of surge chamber 304 via gas exchange pipeline 316 at the minimum position 315 of its vertical.Surge chamber 304 is communicated with outside atmosphere on the top of its vertical by the gas port 201 that is opened on the lid 2.The port 318 that surge chamber 304 is communicated with outside atmosphere is between the vertical middle part of surge chamber 304 and high-order bit.In other words, surge chamber 304 is communicated with the port 318 of outside atmosphere with also having one section air guide post 202 between the gas port 201 that is opened on the lid 2.Air guide post 202 is one section gas flow duct of extending in surge chamber 304 from lid 2.

Because 303 whiles of trapping chamber are at the minimum position 314 of its vertical, 315 are communicated with ink storage chamber 301 and surge chamber 304 respectively, that is two minimum positions 314,315 have the port that is communicated with two different chambers respectively in essentially identical horizontal plane, and also there be flowing of ink simultaneously in gas in trapping chamber 303 when entering trapping chamber 303 by surge chamber 304, this just might sweep along the gas that enters trapping chamber 303 by surge chamber 304 to enter into ink storage chamber 301 by the ink that flows, enter again in the monitoring chamber 305, and then the ascending and descending condition of influence monitoring chamber 305 interior buoys 306.The utility model prevents the measure of this state, exchanges the spacing block 321 that setting has the horizontal direction buffer action between the port 320 of pipeline 316 in trapping chamber 303 at the port 319 and the gas of ink flow duct 313 in trapping chamber 303 exactly.Spacing block 321 is used to separate ink flow duct 313 and is positioned at the port 319 of trapping chamber 303 and the port 320 that gas exchange pipeline 316 is positioned at trapping chamber 303, makes under the duty gas that enters trapping chamber 303 by surge chamber 304 can not brought into ink storage chamber 301 via the port 319 that ink flow duct 313 is arranged in trapping chamber 303 by mobile ink.

The design feature that cooperates above-mentioned print cartridge 1, when the can ink,, print cartridge 1 is sidelong referring to Fig. 5, make its ink outlet port 302 close placed sides and have lower vertical, irritate tattooing needle pipe 4 and penetrate in heat sealing film material 309 and the elastic sealing element 308 insertion ink storage chambers 301 to the position.Like this, the ink that pours in print cartridge 1 inner chamber will make gas be rejected in the outside atmosphere through air guide post 202 and gas port 201 by surge chamber 304 along the haircut of dotted line shown in Fig. 5 route β.

Claims

1. cartridge of ink-jet printer, 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, described ink storage chamber and described monitoring chamber keep being communicated with, the indoor buoy that includes its density less than ink of described monitoring, described lid is used for the described box body of capping, it is characterized in that described print cartridge also comprises trapping chamber and surge chamber, described ink storage chamber is communicated with described trapping chamber to minimum position via the vertical of ink flow duct in described trapping chamber to high-order bit at its vertical, described trapping chamber is communicated with described surge chamber to minimum position at the vertical of described surge chamber via gas exchange pipeline to minimum position at its vertical, and described surge chamber is communicated with outside atmosphere at its vertical to top.

2. cartridge of ink-jet printer according to claim 1 is characterized in that described ink flow duct has spacing block at the port and the described gas exchange pipeline of described trapping chamber between the port of described trapping chamber.

3. cartridge of ink-jet printer according to claim 1 and 2, it is characterized in that port that described surge chamber is communicated with outside atmosphere between described surge chamber vertical between middle part and high-order bit.