Abstract:
A printer is provided having a printhead for printing fluid onto media, a reservoir for supplying fluid to the printhead, a pump for drawing fluid from the reservoir and pumping the drawn fluid into the printhead, and a valve arrangement for selectively opening fluid communication between the pump, reservoir and printhead such that the pump is not in fluid communication with the reservoir whenever the pump is in fluid communication with the printhead.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application is a continuation of U.S. application Ser. No. 11/872,719 filed Oct. 16, 2007 all of which is herein incorporated by reference. 
     
    
     FIELD OF THE INVENTION 
       [0002]    The present invention relates to printers and in particular the fluidic architecture of inkjet printers. 
       CO-PENDING APPLICATIONS 
       [0003]    The following application has been filed by the Applicant with the present application:
       Ser. No. 11/872,718       
 
         [0005]    The disclosure of this co-pending application is incorporated herein by reference. The above application has been identified by its filing docket number, which will be substituted with the corresponding application number, once assigned. 
       CROSS REFERENCES TO RELATED APPLICATIONS 
       [0006]    Various methods, systems and apparatus relating to the present invention are disclosed in the following US patents/patent applications filed by the applicant or assignee of the present invention: 
         [0000]                                                6,276,850   6,520,631   6,158,907   6,539,180   6,270,177       6,405,055   6,628,430   6,835,135   6,626,529   6,981,769       7,125,338   7,125,337   7,136,186   10/920,372   7,145,689       7,130,075   7,081,974   7,177,055   7,209,257   6,443,555       7,161,715   7,154,632   7,158,258   7,148,993   7,075,684       10/943,905   10/943,906   10/943,904   10/943,903   10/943,902       6,966,659   6,988,841   7,077,748   7,255,646   7,070,270       7,014,307   7,158,809   7,217,048   11/225,172   11/255,942       11/329,039   11/329,040   7,271,829   11/442,189   11/474,280       11/483,061   11/503,078   11/520,735   11/505,858   11/525,850       11/583,870   11/592,983   11/592,208   11/601,828   11/635,482       11/635,526   10/466,440   7,215,441   11/650,545   11/653,241       11/653,240   7,056,040   6,942,334   11/706,300   11/740,265       11/737,720   11/739,056   11/740,204   11/740,223   11/753,557       11/750,285   11/758,648   11/778,559   11/834,634   11/838,878       11/845,669   6,799,853   7,237,896   6,749,301   10/451,722       7,137,678   7,252,379   7,144,107   10/503,900   10/503,898       10/503,897   7,220,068   7,270,410   7,241,005   7,108,437       7,140,792   10/503,922   7,224,274   10/503,917   10/503,918       10/503,925   10/503,927   10/503,928   10/503,929   10/503,885       7,195,325   7,229,164   7,150,523   10/503,889   7,154,580       6,906,778   7,167,158   7,128,269   6,688,528   6,986,613       6,641,315   10/503,890   10/503,891   7,150,524   7,155,395       6,915,140   6,999,206   6,795,651   6,883,910   7,118,481       7,136,198   7,092,130   6,786,661   6,808,325   10/920,368       10/920,284   7,219,990   10/920,283   6,750,901   6,476,863       6,788,336   6,322,181   6,597,817   6,227,648   6,727,948       6,690,419   10/470,947   6,619,654   6,969,145   6,679,582       10/470,942   6,568,670   6,866,373   10/102,696   7,008,044       6,742,871   6,966,628   6,644,781   6,969,143   6,767,076       6,834,933   6,692,113   6,913,344   6,727,951   7,128,395       7,036,911   7,032,995   6,969,151   6,955,424   6,969,162       10/919,249   6,942,315-B2   11/006,577   7,234,797   6,986,563       11/063,577   11/045,442   11/124,044   11/124,284   7,077,330       6,196,541   11/149,389   11/185,725   7,226,144   11/202,344       7,267,428   11/248,423   11/248,422   7,093,929   11/282,769       11/330,060   11/442,111   11/472,406   11/499,806   11/499,710       6,195,150   11/749,156   11/782,588   11/854,435   11/853,817       6,362,868   6,831,681   6,431,669   6,362,869   6,472,052       6,356,715   6,894,694   6,636,216   6,366,693   6,329,990       6,459,495   6,137,500   6,690,416   7,050,143   6,398,328       7,110,024   6,431,704   6,879,341   6,415,054   6,665,454       6,542,645   6,486,886   6,381,361   6,317,192   6,850,274       09/113,054   6,646,757   6,624,848   6,357,135   6,271,931       6,353,772   6,106,147   6,665,008   6,304,291   6,305,770       6,289,262   6,315,200   6,217,165   6,496,654   6,859,225       6,924,835   6,647,369   6,943,830   09/693,317   7,021,745       6,712,453   6,460,971   6,428,147   6,416,170   6,402,300       6,464,340   6,612,687   6,412,912   6,447,099   6,837,567       6,505,913   7,128,845   6,733,684   7,249,108   6,566,858       6,331,946   6,246,970   6,442,525   09/517,384   09/505,951       6,374,354   7,246,098   6,816,968   6,757,832   6,334,190       6,745,331   7,249,109   10/203,559   7,197,642   7,093,139       10/636,263   10/636,283   10/866,608   7,210,038   10/902,833       10/940,653   10/942,858   11/706,329   11/757,385   11/758,642       7,119,836   10/322,698   10/642,331   10/636,285   7,170,652       6,967,750   6,995,876   7,099,051   7,172,191   7,243,916       7,222,845   11/239,232   11/055,276   7,063,940   11/107,942       7,193,734   7,086,724   7,090,337   11/185,952   7,140,717       11/190,902   11/209,711   7,256,824   7,140,726   7,156,512       7,186,499   11/478,585   11/525,862   11/540,574   11/583,875       11/592,181   6,750,944   11/599,336   11/650,548   11/744,183       11/758,646   11/778,561   11/839,532   11/838,874   11/853,021       11/869,710   11/868,531   10/636,225   10/510,094   6,985,207       6,773,874   6,650,836   10/666,495   10/636,224   7,250,975       10/636,214   6,880,929   7,236,188   7,236,187   7,155,394       10/636,219   10/636,223   7,055,927   6,986,562   7,052,103       10/656,469   10/656,281   10/656,791   10/666,124   10/683,217       10/683,197   7,095,533   6,914,686   6,896,252   6,820,871       6,834,851   6,848,686   6,830,246   6,851,671   10/729,098       7,092,011   7,187,404   10/729,159   10/753,458   6,878,299       6,929,348   6,921,154   10/780,625   10/804,042   6,913,346       10/831,238   10/831,237   10/831,239   10/831,240   10/831,241       10/831,234   10/831,233   7,246,897   7,077,515   10/831,235       10/853,336   10/853,659   10/853,681   6,913,875   7,021,758       7,033,017   7,161,709   7,099,033   7,147,294   7,156,494       11/012,024   11/011,925   7,032,998   7,044,585   11/007,250       6,994,424   11/006,787   7,258,435   7,097,263   7,001,012       7,004,568   7,040,738   7,188,933   7,027,080   7,025,446       6,991,321   7,131,715   7,261,392   7,207,647   7,182,435       7,097,285   11/228,410   7,097,284   7,083,264   7,147,304       7,232,203   7,156,498   7,201,471   11/501,772   11/503,084       11/513,073   7,210,764   11/635,524   11/706,379   11/730,386       11/730,784   11/753,568   11/782,591   11/859,783   6,710,457       6,775,906   6,507,099   7,221,043   7,107,674   7,154,172       11/442,400   7,247,941   11/736,540   11/758,644   6,530,339       6,631,897   6,851,667   6,830,243   6,860,479   6,997,452       7,000,913   7,204,482   11/212,759   11/281,679   11/730,409       6,238,044   6,425,661   11/003,786   7,258,417   11/003,418       11/003,334   7,270,395   11/003,404   11/003,419   11/003,700       7,255,419   11/003,618   7,229,148   7,258,416   7,273,263       7,270,393   6,984,017   11/003,699   11/071,473   7,156,497       11/601,670   11/748,482   11/778,563   11/779,851   11/778,574       11/853,816   11/853,814   11/853,786   11/856,694   11/003,463       11/003,701   11/003,683   11/003,614   11/003,702   11/003,684       7,246,875   11/003,617   11/764,760   11/853,777   11/293,800       11/293,802   11/293,801   11/293,808   11/293,809   11/482,975       11/482,970   11/482,968   11/482,972   11/482,971   11/482,969       6,431,777   6,334,664   6,447,113   7,239,407   6,398,359       6,652,089   6,652,090   7,057,759   6,631,986   7,187,470       11/315,356   11/501,775   11/744,210   11/859,784   6,471,331       6,676,250   6,347,864   6,439,704   6,425,700   6,588,952       6,626,515   6,722,758   6,871,937   11/060,803   11/097,266       11/097,267   11/685,084   11/685,086   11/685,090   11/740,925       11/763,444   11/763,443   7,249,942   7,206,654   7,162,324       7,162,325   7,231,275   7,146,236   10/753,475   10/753,499       6,997,698   7,220,112   7,231,276   10/753,440   7,220,115       7,195,475   7,144,242   11/499,746   11/501,774   11/525,858       11/545,501   11/599,335   11/706,380   11/736,545   11/736,554       11/739,047   11/749,159   11/739,073   11/775,160   11/853,755       TEST   6,786,420   6,827,282   6,948,661   7,073,713       10/983,060   7,093,762   7,083,108   7,222,799   7,201,319       11/442,103   11/739,071   11/518,238   11/518,280   11/518,244       11/518,243   11/518,242   7,032,899   6,854,724   11/084,237       11/084,240   11/084,238   11/357,296   11/357,298   11/357,297       6,350,023   6,318,849   6,592,207   6,439,699   6,312,114       11/246,676   11/246,677   11/246,678   11/246,679   11/246,680       11/246,681   11/246,714   11/246,713   11/246,689   11/246,671       11/246,670   11/246,669   11/246,704   11/246,710   11/246,688       11/246,716   11/246,715   11/246,707   11/246,706   11/246,705       11/246,708   11/246,693   11/246,692   11/246,696   11/246,695       11/246,694   11/482,958   11/482,955   11/482,962   11/482,963       11/482,956   11/482,954   11/482,974   11/482,957   11/482,987       11/482,959   11/482,960   11/482,961   11/482,964   11/482,965       11/482,976   11/482,973   11/495,815   11/495,816   11/495,817       10/803,074   10/803,073   7,040,823   10/803,076   10/803,077       10/803,078   10/803,079   10/922,971   10/922,970   10/922,836       10/922,842   10/922,848   10/922,843   7,125,185   7,229,226       11/513,386   11/753,559   10/815,621   7,243,835   10/815,630       10/815,637   10/815,638   7,251,050   10/815,642   7,097,094       7,137,549   10/815,618   7,156,292   11/738,974   10/815,635       10/815,647   10/815,634   7,137,566   7,131,596   7,128,265       7,207,485   7,197,374   7,175,089   10/815,617   10/815,620       7,178,719   10/815,613   7,207,483   10/815,619   7,270,266       10/815,614   11/446,240   11/488,162   11/488,163   11/488,164       11/488,167   11/488,168   11/488,165   11/488,166   7,267,273       11/834,628   11/839,497   10/815,636   7,128,270   11/041,650       11/041,651   11/041,652   11/041,649   11/041,610   11/863,253       11/863,255   11/863,257   11/863,258   11/863,262   11/041,609       11/041,626   11/041,627   11/041,624   11/041,625   11/863,268       11/863,269   11/863,270   11/863,271   11/863,273   76/584,733       11/041,556   11/041,580   11/041,723   11/041,698   11/041,648       11/863,263   11/863,264   11/863,265   11/863,266   11/863,267       10/815,609   7,150,398   7,159,777   10/815,610   7,188,769       7,097,106   7,070,110   7,243,849   11/442,381   11/480,957       11/764,694   6,227,652   6,213,588   6,213,589   6,231,163       6,247,795   6,394,581   6,244,691   6,257,704   6,416,168       6,220,694   6,257,705   6,247,794   6,234,610   6,247,793       6,264,306   6,241,342   6,247,792   6,264,307   6,254,220       6,234,611   6,302,528   6,283,582   6,239,821   6,338,547       6,247,796   6,557,977   6,390,603   6,362,843   6,293,653       6,312,107   6,227,653   6,234,609   6,238,040   6,188,415       6,227,654   6,209,989   6,247,791   6,336,710   6,217,153       6,416,167   6,243,113   6,283,581   6,247,790   6,260,953       6,267,469   6,588,882   6,742,873   6,918,655   6,547,371       6,938,989   6,598,964   6,923,526   6,273,544   6,309,048       6,420,196   6,443,558   6,439,689   6,378,989   6,848,181       6,634,735   6,299,289   6,299,290   6,425,654   6,902,255       6,623,101   6,406,129   6,505,916   6,457,809   6,550,895       6,457,812   7,152,962   6,428,133   7,216,956   7,080,895       11/144,844   7,182,437   11/599,341   11/635,533   11/607,976       11/607,975   11/607,999   11/607,980   11/607,979   11/607,978       11/735,961   11/685,074   11/696,126   11/696,144   11/696,650       11/763,446   6,224,780   6,235,212   6,280,643   6,284,147       6,214,244   6,071,750   6,267,905   6,251,298   6,258,285       6,225,138   6,241,904   6,299,786   6,866,789   6,231,773       6,190,931   6,248,249   6,290,862   6,241,906   6,565,762       6,241,905   6,451,216   6,231,772   6,274,056   6,290,861       6,248,248   6,306,671   6,331,258   6,110,754   6,294,101       6,416,679   6,264,849   6,254,793   6,245,246   6,855,264       6,235,211   6,491,833   6,264,850   6,258,284   6,312,615       6,228,668   6,180,427   6,171,875   6,267,904   6,245,247       6,315,914   7,169,316   6,526,658   7,210,767   11/056,146       11/635,523   6,665,094   6,450,605   6,512,596   6,654,144       7,125,090   6,687,022   7,072,076   7,092,125   7,215,443       7,136,195   7,077,494   6,877,834   6,969,139   10/636,227       10/636,265   6,912,067   7,277,205   7,154,637   10/636,230       7,070,251   6,851,782   10/636,211   10/636,247   6,843,545       7,079,286   7,064,867   7,065,247   7,027,177   7,218,415       7,064,873   6,954,276   7,061,644   7,092,127   7,059,695       10/990,382   7,177,052   7,270,394   11/124,231   7,188,921       7,187,469   7,196,820   11/281,445   11/329,041   7,251,051       7,245,399   11/524,911   11/640,267   11/706,297   11/730,387       11/737,142   11/764,729   11/834,637   11/853,019   11/863,239       11/305,274   11/305,273   11/305,275   11/305,152   11/305,158       11/305,008   6,231,148   6,293,658   6,614,560   6,238,033       6,312,070   6,238,111   6,378,970   6,196,739   6,270,182       6,152,619   7,006,143   6,876,394   6,738,096   6,970,186       6,287,028   6,412,993   11/033,145   11/102,845   11/102,861       11/248,421   11/672,878   7,204,941   10/815,624   10/815,628       11/845,672   7,278,727   10/913,373   10/913,374   10/913,372       7,138,391   7,153,956   10/913,380   10/913,379   10/913,376       7,122,076   7,148,345   11/172,816   11/172,815   11/172,814       11/482,990   11/482,986   11/482,985   11/454,899   11/583,942       11/592,990   11/849,360   11/831,961   11/831,962   11/831,963       60/951,700   11/832,629   11/832,637   60/971,535   10/407,212       7,252,366   10/683,064   10/683,041   7,275,811   10/884,889       10/922,890   10/922,875   10/922,885   10/922,889   10/922,884       10/922,879   10/922,887   10/922,888   10/922,874   7,234,795       10/922,871   10/922,880   10/922,881   10/922,882   10/922,883       10/922,878   10/922,872   10/922,876   10/922,886   10/922,877       7,147,792   7,175,774   11/159,193   11/491,378   11/766,713       11/841,647   11/482,980   11/563,684   11/482,967   11/482,966       11/482,988   11/482,989   11/293,832   11/293,838   11/293,825       11/293,841   11/293,799   11/293,796   11/293,797   11/293,798       11/124,158   11/124,196   11/124,199   11/124,162   11/124,202       11/124,197   11/124,154   11/124,198   11/124,153   11/124,151       11/124,160   11/124,192   11/124,175   11/124,163   11/124,149       11/124,152   11/124,173   11/124,155   7,236,271   11/124,174       11/124,194   11/124,164   11/124,200   11/124,195   11/124,166       11/124,150   11/124,172   11/124,165   11/124,186   11/124,185       11/124,184   11/124,182   11/124,201   11/124,171   11/124,181       11/124,161   11/124,156   11/124,191   11/124,159   11/124,176       11/124,188   11/124,170   11/124,187   11/124,189   11/124,190       11/124,180   11/124,193   11/124,183   11/124,178   11/124,177       11/124,148   11/124,168   11/124,167   11/124,179   11/124,169       11/187,976   11/188,011   11/188,014   11/482,979   11/735,490       11/853,018   11/228,540   11/228,500   11/228,501   11/228,530       11/228,490   11/228,531   11/228,504   11/228,533   11/228,502       11/228,507   11/228,482   11/228,505   11/228,497   11/228,487       11/228,529   11/228,484   11/228,489   11/228,518   11/228,536       11/228,496   11/228,488   11/228,506   11/228,516   11/228,526       11/228,539   11/228,538   11/228,524   11/228,523   11/228,519       11/228,528   11/228,527   11/228,525   11/228,520   11/228,498       11/228,511   11/228,522   111/228,515   11/228,537   11/228,534       11/228,491   11/228,499   11/228,509   11/228,492   11/228,493       11/228,510   11/228,508   11/228,512   11/228,514   11/228,494       11/228,495   11/228,486   11/228,481   11/228,477   11/228,485       11/228,483   11/228,521   11/228,517   11/228,532   11/228,513       11/228,503   11/228,480   11/228,535   11/228,478   11/228,479       6,238,115   6,386,535   6,398,344   6,612,240   6,752,549       6,805,049   6,971,313   6,899,480   6,860,664   6,925,935       6,966,636   7,024,995   10/636,245   6,926,455   7,056,038       6,869,172   7,021,843   6,988,845   6,964,533   6,981,809       11/060,804   7,258,067   11/155,544   7,222,941   11/206,805       11/281,421   7,249,904   11/737,726   11/772,240   11/863,246       11/863,145   11/865,650   6,087,638   6,340,222   6,041,600       6,299,300   6,067,797   6,286,935   6,044,646   6,382,769       10/868,866   6,787,051   6,938,990   11/242,916   11/242,917       11/144,799   11/198,235   11/861,282   11/861,284   11/766,052       7,152,972   11/592,996   D529952   6,390,605   6,322,195       6,612,110   6,480,089   6,460,778   6,305,788   6,426,014       6,364,453   6,457,795   6,315,399   6,338,548   7,040,736       6,938,992   6,994,425   6,863,379   6,540,319   6,994,421       6,984,019   7,008,043   6,997,544   6,328,431   6,991,310       10/965,772   7,140,723   6,328,425   6,982,184   7,267,423       7,134,741   7,066,577   7,152,945   11/038,200   7,021,744       6,991,320   7,155,911   11/107,799   6,595,624   7,152,943       7,125,103   11/209,709   11/228,407   11/273,271   7,229,151       11/330,058   7,237,873   11/329,163   11/442,180   11/450,431       7,213,907   6,417,757   11/482,951   11/545,566   11/583,826       11/604,315   11/604,323   11/643,845   11/706,950   11/730,399       11/749,121   11/753,549   11/834,630   7,095,309   6,854,825       6,623,106   6,672,707   6,575,561   6,817,700   6,588,885       7,075,677   6,428,139   6,575,549   6,846,692   6,425,971       7,063,993   6,383,833   6,955,414   6,412,908   6,746,105       6,953,236   6,412,904   7,128,388   6,398,343   6,652,071       6,793,323   6,659,590   6,676,245   7,201,460   6,464,332       6,659,593   6,478,406   6,978,613   6,439,693   6,502,306       6,966,111   6,863,369   6,428,142   6,874,868   6,390,591       6,799,828   6,896,358   7,018,016   10/296,534   6,328,417       6,322,194   6,382,779   6,629,745   6,565,193   6,609,786       6,609,787   6,439,908   6,684,503   6,843,551   6,764,166       6,561,617   10/510,092   6,557,970   6,546,628   10/510,098       6,652,074   6,820,968   7,175,260   6,682,174   10/510,207       6,648,453   6,834,932   6,682,176   6,998,062   6,767,077       10/534,830   6,755,509   10/534,813   6,692,108   10/534,811       6,672,709   10/534,823   7,086,718   10/534,881   6,672,710       10/534,812   6,669,334   10/534,804   7,152,958   10/534,817       6,824,246   7,264,336   6,669,333   10/534,815   6,820,967       10/534,883   6,736,489   7,264,335   6,719,406   7,222,943       7,188,419   7,168,166   6,974,209   7,086,719   6,974,210       7,195,338   7,252,775   7,101,025   11/474,281   11/485,258       11/706,304   11/706,324   11/706,326   11/706,321   11/772,239       11/782,598   11/829,941   11/852,991   11/852,986   11/763,440       11/763,442   11/246,687   11/246,718   11/246,685   11/246,686       11/246,703   11/246,691   11/246,711   11/246,690   11/246,712       11/246,717   11/246,709   11/246,700   11/246,701   11/246,702       11/246,668   11/246,697   11/246,698   11/246,699   11/246,675       11/246,674   11/246,667   11/829,957   11/829,960   11/829,961       11/829,962   11/829,963   11/829,966   11/829,967   11/829,968       11/829,969   7,156,508   7,159,972   7,083,271   7,165,834       7,080,894   7,201,469   7,090,336   7,156,489   10/760,233       10/760,246   7,083,257   7,258,422   7,255,423   7,219,980       10/760,253   10/760,255   10/760,209   7,118,192   10/760,194       10/760,238   7,077,505   7,198,354   7,077,504   10/760,189       7,198,355   10/760,232   10/760,231   7,152,959   7,213,906       7,178,901   7,222,938   7,108,353   7,104,629   11/446,227       11/454,904   11/472,345   11/474,273   7,261,401   11/474,279       11/482,939   11/482,950   11/499,709   11/592,984   11/601,668       11/603,824   11/601,756   11/601,672   11/650,546   11/653,253       11/706,328   11/706,299   11/706,965   11/737,080   11/737,041       11/778,062   11/778,566   11/782,593   11/246,684   11/246,672       11/246,673   11/246,683   11/246,682   60/939,086   11/860,538       11/860,539   11/860,540   11/860,541   11/860,542   7,246,886       7,128,400   7,108,355   6,991,322   10/728,790   7,118,197       10/728,784   10/728,783   7,077,493   6,962,402   10/728,803       7,147,308   10/728,779   7,118,198   7,168,790   7,172,270       7,229,155   6,830,318   7,195,342   7,175,261   10/773,183       7,108,356   7,118,202   10/773,186   7,134,744   10/773,185       7,134,743   7,182,439   7,210,768   10/773,187   7,134,745       7,156,484   7,118,201   7,111,926   10/773,184   7,018,021       11/060,751   11/060,805   11/188,017   7,128,402   11/298,774       11/329,157   11/490,041   11/501,767   11/499,736   7,246,885       7,229,156   11/505,846   11/505,857   11/505,856   11/524,908       11/524,938   7,258,427   11/524,912   11/592,999   11/592,995       11/603,825   11/649,773   11/650,549   11/653,237   11/706,378       11/706,962   11/749,118   11/754,937   11/749,120   11/744,885       11/779,850   11/765,439   11/842,950   11/839,539   11/097,308       11/097,309   7,246,876   11/097,299   11/097,310   11/097,213       11/210,687   11/097,212   7,147,306   7,261,394   11/764,806       11/782,595   11/482,953   11/482,977   11/544,778   11/544,779       11/764,808   11/756,624   11/756,625   11/756,626   11/756,627       11/756,628   11/756,629   11/756,630   11/756,631   7,156,289       7,178,718   7,225,979   11/712,434   11/084,796   11/084,742       11/084,806   09/575,197   09/575,197   7,079,712   7,079,712       6,825,945   6,825,945   09/575,165   09/575,165   6,813,039       6,813,039   7,190,474   6,987,506   6,987,506   6,824,044       7,038,797   7,038,797   6,980,318   6,980,318   6,816,274       6,816,274   7,102,772   7,102,772   09/575,186   09/575,186       6,681,045   6,681,045   6,678,499   6,679,420   6,963,845       6,976,220   6,728,000   6,728,000   7,110,126   7,173,722       7,173,722   6,976,035   6,813,558   6,766,942   6,965,454       6,995,859   7,088,459   7,088,459   6,720,985   09/609,303       6,922,779   6,978,019   6,847,883   7,131,058   09/721,895       09/607,843   09/693,690   6,959,298   6,973,450   7,150,404       6,965,882   7,233,924   09/575,181   09/575,181   09/722,174       7,175,079   7,162,259   6,718,061   10/291,523   10/291,471       7,012,710   6,825,956   10/291,481   7,222,098   10/291,825       7,263,508   7,031,010   6,972,864   6,862,105   7,009,738       6,989,911   6,982,807   10/291,576   6,829,387   6,714,678       6,644,545   6,609,653   6,651,879   10/291,555   10/291,510       10/291,592   10/291,542   7,044,363   7,004,390   6,867,880       7,034,953   6,987,581   7,216,224   10/291,821   7,162,269       7,162,222   10/291,822   10/291,524   10/291,553   6,850,931       6,865,570   6,847,961   10/685,523   10/685,583   7,162,442       10/685,584   7,159,784   10/804,034   10/793,933   6,889,896       10/831,232   7,174,056   6,996,274   7,162,088   10/943,874       10/943,872   10/944,044   7,259,884   10/944,043   7,167,270       10/943,877   6,986,459   10/954,170   7,181,448   10/981,626       10/981,616   10/981,627   7,231,293   7,174,329   10/992,713       11/006,536   7,200,591   11/020,106   11/020,260   11/020,321       11/020,319   11/026,045   11/059,696   11/051,032   11/059,674       11/107,944   11/107,941   11/082,940   11/082,815   11/082,827       11/082,829   6,991,153   6,991,154   11/124,256   11/123,136       11/154,676   11/159,196   11/182,002   11/202,251   11/202,252       11/202,253   11/203,200   11/202,218   11/206,778   11/203,424       11/222,977   11/228,450   11/227,239   11/286,334   7,225,402       11/329,187   11/349,143   11/491,225   11/491,121   11/442,428       11/454,902   11/442,385   11/478,590   7,271,931   11/520,170       11/603,057   11/706,964   11/739,032   11/739,014   11/834,633       11/830,848   11/830,849   11/839,542   11/866,394   7,068,382       7,068,382   7,007,851   6,957,921   6,457,883   10/743,671       7,044,381   11/203,205   7,094,910   7,091,344   7,122,685       7,038,066   7,099,019   7,062,651   7,062,651   6,789,194       6,789,194   6,789,191   6,789,191   10/900,129   7,278,018       10/913,350   10/982,975   10/983,029   11/331,109   6,644,642       6,644,642   6,502,614   6,502,614   6,622,999   6,622,999       6,669,385   6,669,385   6,827,116   7,011,128   10/949,307       6,549,935   6,549,935   6,987,573   6,987,573   6,727,996       6,727,996   6,591,884   6,591,884   6,439,706   6,439,706       6,760,119   6,760,119   09/575,198   09/575,198   7,064,851       6,826,547   6,290,349   6,290,349   6,428,155   6,428,155       6,785,016   6,785,016   6,831,682   6,741,871   6,927,871       6,980,306   6,965,439   6,840,606   7,036,918   6,977,746       6,970,264   7,068,389   7,093,991   7,190,491   10/901,154       10/932,044   10/962,412   7,177,054   10/962,552   10/965,733       10/965,933   10/974,742   10/982,974   7,180,609   10/986,375       11/107,817   11/148,238   11/149,160   11/206,756   11/250,465       7,202,959   11/653,219   11/706,309   11/730,389   11/730,392       60/953,443   11/866,387   6,074,077   6,982,798   6,870,966       6,870,966   6,822,639   6,822,639   6,474,888   6,627,870       6,724,374   6,788,982   7,263,270   6,788,293   6,946,672       6,737,591   6,737,591   7,091,960   09/693,514   6,792,165       7,105,753   6,795,593   6,980,704   6,768,821   7,132,612       7,041,916   6,797,895   7,015,901   10/782,894   7,148,644       10/778,056   10/778,058   10/778,060   10/778,059   10/778,063       10/778,062   10/778,061   10/778,057   7,096,199   10/917,468       10/917,467   10/917,466   10/917,465   7,218,978   7,245,294       7,277,085   7,187,370   10/917,436   10/943,856   10/919,379       7,019,319   10/943,878   10/943,849   7,043,096   7,148,499       11/144,840   11/155,556   11/155,557   11/193,481   11/193,435       11/193,482   11/193,479   11/255,941   11/281,671   11/298,474       7,245,760   11/488,832   11/495,814   11/495,823   11/495,822       11/495,821   11/495,820   11/653,242   11/754,370   60/911,260       11/829,936   11/839,494   11/866,305   11/866,313   11/866,324       11/866,336   11/866,348   11/866,359   7,055,739   7,055,739       7,233,320   7,233,320   6,830,196   6,830,196   6,832,717       6,832,717   7,182,247   7,120,853   7,082,562   6,843,420       10/291,718   6,789,731   7,057,608   6,766,944   6,766,945       10/291,715   10/291,559   10/291,660   7,264,173   10/409,864       7,108,192   10/537,159   7,111,791   7,077,333   6,983,878       10/786,631   7,134,598   10/893,372   6,929,186   6,994,264       7,017,826   7,014,123   7,134,601   7,150,396   10/971,146       7,017,823   7,025,276   10/990,459   7,080,780   11/074,802       11/442,366   11/749,158   11/842,948   10/492,169   10/492,152       10/492,168   10/492,161   10/492,154   10/502,575   10/531,229       10/683,151   10/531,733   10/683,040   10/510,391   10/510,392       10/778,090   6,957,768   6,957,768   09/575,172   09/575,172       7,170,499   7,170,499   7,106,888   7,106,888   7,123,239       7,123,239   6,982,701   6,982,703   7,227,527   6,786,397       6,947,027   6,975,299   7,139,431   7,048,178   7,118,025       6,839,053   7,015,900   7,010,147   7,133,557   6,914,593       10/291,546   6,938,826   7,278,566   7,123,245   6,992,662       7,190,346   11/074,800   11/074,782   11/074,777   11/075,917       7,221,781   11/102,843   7,213,756   11/188,016   7,180,507       7,263,225   11/442,114   11/737,094   11/753,570   11/782,596       11/865,711   11/856,061   11/856,062   11/856,064   11/856,066       11/672,522   11/672,950   11/672,947   11/672,891   11/672,954       11/672,533   11/754,310   11/754,321   11/754,320   11/754,319       11/754,318   11/754,317   11/754,316   11/754,315   11/754,314       11/754,313   11/754,312   11/754,311   6,593,166   7,132,679       6,940,088   7,119,357   11/513,077   6,755,513   6,974,204       6,409,323   7,055,930   6,281,912   6,893,109   6,604,810       6,824,242   6,318,920   7,210,867   6,488,422   6,655,786       6,457,810   6,485,135   6,796,731   6,904,678   6,641,253       7,125,106   6,786,658   7,097,273   6,824,245   7,222,947       6,918,649   6,860,581   6,929,351   7,063,404   6,969,150       7,004,652   6,871,938   6,905,194   6,846,059   6,997,626       10/974,881   7,029,098   6,966,625   7,114,794   7,207,646       7,077,496   11/071,117   11/072,529   7,152,938   7,182,434       7,182,430   11/102,842   7,032,993   11/155,513   11/155,545       11/144,813   7,172,266   7,258,430   7,128,392   7,210,866       11/488,066   11/505,933   11/540,727   11/635,480   11/707,946       11/706,303   11/709,084   11/730,776   11/744,143   11/779,845       11/782,589   11/863,256   11/066,161   11/066,160   11/066,159       11/066,158   11/066,165   6,804,030   6,807,315   6,771,811       6,683,996   7,271,936   10/934,490   6,965,691   7,058,219       10/943,977   7,187,807   7,181,063   11/338,783   11/603,823       11/650,536   10/727,181   10/727,162   10/727,163   10/727,245       7,121,639   7,165,824   7,152,942   10/727,157   7,181,572       7,096,137   10/727,257   7,278,034   7,188,282   10/727,159       10/727,180   10/727,179   10/727,192   10/727,274   10/727,164       10/727,161   10/727,198   10/727,158   10/754,536   10/754,938       10/727,227   10/727,160   10/934,720   7,171,323   7,278,697       11/442,131   11/474,278   11/488,853   11/488,841   11/749,750       11/749,749   10/296,522   6,795,215   7,070,098   7,154,638       6,805,419   6,859,289   6,977,751   6,398,332   6,394,573       6,622,923   6,747,760   6,921,144   10/884,881   7,092,112       7,192,106   11/039,866   7,173,739   6,986,560   7,008,033       11/148,237   7,222,780   7,270,391   7,150,510   11/478,599       11/499,749   11/521,388   11/738,518   11/482,981   11/743,662       11/743,661   11/743,659   11/743,655   11/743,657   11/752,900       7,195,328   7,182,422   11/650,537   11/712,540   10/854,521       10/854,522   10/854,488   10/854,487   10/854,503   10/854,504       10/854,509   7,188,928   7,093,989   10/854,497   10/854,495       10/854,498   10/854,511   10/854,512   10/854,525   10/854,526       10/854,516   10/854,508   7,252,353   10/854,515   7,267,417       10/854,505   10/854,493   7,275,805   10/854,489   10/854,490       10/854,492   10/854,491   10/854,528   10/854,523   10/854,527       10/854,524   10/854,520   10/854,514   10/854,519   10/854,513       10/854,499   10/854,501   7,266,661   7,243,193   10/854,518       10/854,517   10/934,628   7,163,345   11/499,803   11/601,757       11/706,295   11/735,881   11/748,483   11/749,123   11/766,061       11/775,135   11/772,235   11/778,569   11/829,942   11/014,731       D529081   D541848   D528597   6,924,907   6,712,452       6,416,160   6,238,043   6,958,826   6,812,972   6,553,459       6,967,741   6,956,669   6,903,766   6,804,026   7,259,889       6,975,429   10/636,234   10/636,233   10/636,217   10/636,216       7,274,485   7,139,084   7,173,735   7,068,394   10/636,276       7,086,644   7,250,977   7,146,281   7,023,567   7,136,183       7,083,254   6,796,651   7,061,643   7,057,758   6,894,810       6,995,871   7,085,010   7,092,126   7,123,382   7,061,650       10/853,143   6,986,573   6,974,212   10/943,907   7,173,737       10/954,168   7,246,868   11/065,357   7,137,699   11/107,798       7,148,994   7,077,497   11/176,372   7,248,376   11/225,158       11/225,154   7,173,729   11/442,132   11/478,607   11/503,085       11/545,502   11/583,943   11/585,946   11/653,239   11/653,238       11/764,781   11/764,782   11/779,884   11/845,666   11/544,764       11/544,765   11/544,772   11/544,773   11/544,774   11/544,775       11/544,776   11/544,766   11/544,767   11/544,771   11/544,770       11/544,769   11/544,777   11/544,768   11/544,763   11/293,804       11/293,840   11/293,803   11/293,833   11/293,834   11/293,835       11/293,836   11/293,837   11/293,792   11/293,794   11/293,839       11/293,826   11/293,829   11/293,830   11/293,827   11/293,828       7,270,494   11/293,823   11/293,824   11/293,831   11/293,815       11/293,819   11/293,818   11/293,817   11/293,816   11/838,875       11/482,978   11/640,356   11/640,357   11/640,358   11/640,359       11/640,360   11/640,355   11/679,786   10/760,254   10/760,210       10/760,202   7,201,468   10/760,198   10/760,249   7,234,802       10/760,196   10/760,247   7,156,511   10/760,264   7,258,432       7,097,291   10/760,222   10/760,248   7,083,273   10/760,192       10/760,203   10/760,204   10/760,205   10/760,206   10/760,267       10/760,270   7,198,352   10/760,271   10/760,275   7,201,470       7,121,655   10/760,184   7,232,208   10/760,186   10/760,261       7,083,272   7,261,400   11/474,272   11/474,315   11/501,771       11/583,874   11/650,554   11/706,322   11/706,968   11/749,119       11/749,157   11/779,848   11/782,590   11/855,152   11/855,151       11/014,764   11/014,763   11/014,748   11/014,747   11/014,761       11/014,760   11/014,757   11/014,714   7,249,822   11/014,762       11/014,724   11/014,723   11/014,756   11/014,736   11/014,759       11/014,758   11/014,725   11/014,739   11/014,738   11/014,737       11/014,726   11/014,745   11/014,712   7,270,405   11/014,751       11/014,735   11/014,734   11/014,719   11/014,750   11/014,749       7,249,833   11/758,640   11/775,143   11/838,877   11/014,769       11/014,729   11/014,743   11/014,733   11/014,754   11/014,755       11/014,765   11/014,766   11/014,740   11/014,720   11/014,753       7,255,430   11/014,744   11/014,741   11/014,768   11/014,767       11/014,718   11/014,717   11/014,716   11/014,732   11/014,742       11/097,268   11/097,185   11/097,184   11/778,567   11/852,958       11/852,907   11/293,820   11/293,813   11/293,822   11/293,812       11/293,821   11/293,814   11/293,793   11/293,842   11/293,811       11/293,807   11/293,806   11/293,805   11/293,810   11/688,863       11/688,864   11/688,865   11/688,866   11/688,867   11/688,868       11/688,869   11/688,871   11/688,872   11/688,873   11/741,766       11/482,982   11/482,983   11/482,984   11/495,818   11/495,819       11/677,049   11/677,050   11/677,051   11/014,722   D528156       10/760,180   7,111,935   10/760,213   10/760,219   10/760,237       7,261,482   10/760,220   7,002,664   10/760,252   10/760,265       7,088,420   11/446,233   11/503,083   11/503,081   11/516,487       11/599,312   6,364,451   6,533,390   6,454,378   7,224,478       6,559,969   6,896,362   7,057,760   6,982,799   11/202,107       11/743,672   11/744,126   11/743,673   7,093,494   7,143,652       7,089,797   7,159,467   7,234,357   7,124,643   7,121,145       7,089,790   7,194,901   6,968,744   7,089,798   7,240,560       7,137,302   11/442,177   7,171,855   7,260,995   7,260,993       7,165,460   7,222,538   7,258,019   11/543,047   7,258,020       11/604,324   11/642,520   11/706,305   11/707,056   11/744,211       11/767,526   11/779,846   11/764,227   11/829,943   11/829,944       6,454,482   6,808,330   6,527,365   6,474,773   6,550,997       7,093,923   6,957,923   7,131,724   10/949,288   7,168,867       7,125,098   11/706,966   11/185,722   7,249,901   7,188,930       11/014,728   11/014,727   D536031   D531214   7,237,888       7,168,654   7,201,272   6,991,098   7,217,051   6,944,970       10/760,215   7,108,434   10/760,257   7,210,407   7,186,042       10/760,266   6,920,704   7,217,049   10/760,214   10/760,260       7,147,102   10/760,269   7,249,838   10/760,241   10/962,413       10/962,427   7,261,477   7,225,739   10/962,402   10/962,425       10/962,428   7,191,978   10/962,426   10/962,409   10/962,417       10/962,403   7,163,287   7,258,415   10/962,523   7,258,424       10/962,410   7,195,412   7,207,670   7,270,401   7,220,072       11/474,267   11/544,547   11/585,925   11/593,000   11/706,298       11/706,296   11/706,327   11/730,760   11/730,407   11/730,787       11/735,977   11/736,527   11/753,566   11/754,359   11/778,061       11/765,398   11/778,556   11/829,937   11/780,470   11/866,399       11/223,262   11/223,018   11/223,114   11/223,022   11/223,021       11/223,020   11/223,019   11/014,730   D541849   29/279,123       6,716,666   6,949,217   6,750,083   7,014,451   6,777,259       6,923,524   6,557,978   6,991,207   6,766,998   6,967,354       6,759,723   6,870,259   10/853,270   6,925,875   10/898,214       7,095,109   7,145,696   10/976,081   7,193,482   7,134,739       7,222,939   7,164,501   7,118,186   7,201,523   7,226,159       7,249,839   7,108,343   7,154,626   7,079,292   10/980,184       7,233,421   7,063,408   10/983,082   10/982,804   7,032,996       10/982,834   10/982,833   10/982,817   7,217,046   6,948,870       7,195,336   7,070,257   10/986,813   10/986,785   7,093,922       6,988,789   10/986,788   7,246,871   10/992,748   10/992,747       7,187,468   10/992,828   7,196,814   10/992,754   7,268,911       7,265,869   7,128,384   7,164,505   11/003,595   7,025,434       11/003,481   11/003,485   7,206,098   7,265,877   7,193,743       7,168,777   11/006,734   7,195,329   7,198,346   11/006,739       11/013,363   11/013,881   6,959,983   7,128,386   7,097,104       11/013,636   7,083,261   7,070,258   7,083,275   7,110,139       6,994,419   6,935,725   11/026,046   7,178,892   7,219,429       6,988,784   11/026,135   11/026,326   11/064,005   11/064,006       7,178,903   7,273,274   7,083,256   11/064,008   11/064,009       11/064,013   6,974,206   11/064,004   7,066,588   7,222,940       11/075,918   7,018,025   7,221,867   11/072,517   7,188,938       7,021,742   7,083,262   7,192,119   11/083,021   7,036,912       7,175,256   7,182,441   7,083,258   7,114,796   7,147,302       11/084,757   7,219,982   7,118,195   7,229,153   6,991,318       7,108,346   11/248,429   11/239,031   7,178,899   7,066,579       11/281,419   11/298,633   11/329,188   11/329,140   7,270,397       7,258,425   7,237,874   7,152,961   11/478,592   7,207,658       11/484,744   11/488,867   7,207,659   11/525,857   11/540,569       11/583,869   11/592,985   11/601,762   11/604,316   11/604,309       11/604,303   11/643,844   11/650,553   11/655,940   11/653,320       11/706,294   11/706,381   11/706,323   11/706,963   11/713,660       11/730,408   11/696,186   11/730,390   11/737,139   11/737,749       11/740,273   11/749,122   11/754,361   11/766,043   11/764,775       11/768,872   11/775,156   11/779,271   11/779,272   11/829,938       11/839,502   11/858,852   9628   5382   6,485,123       6,425,657   6,488,358   7,021,746   6,712,986   6,981,757       6,505,912   6,439,694   6,364,461   6,378,990   6,425,658       6,488,361   6,814,429   6,471,336   6,457,813   6,540,331       6,454,396   6,464,325   6,443,559   6,435,664   6,412,914       6,488,360   6,550,896   6,439,695   6,447,100   09/900,160       6,488,359   6,637,873   10/485,738   6,618,117   10/485,737       6,803,989   7,234,801   7,044,589   7,163,273   6,416,154       6,547,364   10/485,744   6,644,771   7,152,939   6,565,181       10/485,805   6,857,719   7,255,414   6,702,417   10/485,652       6,918,654   7,070,265   6,616,271   6,652,078   6,503,408       6,607,263   7,111,924   6,623,108   6,698,867   6,488,362       6,625,874   6,921,153   7,198,356   6,536,874   6,425,651       6,435,667   10/509,997   6,527,374   10/510,154   6,582,059       10/510,152   6,513,908   7,246,883   6,540,332   6,547,368       7,070,256   6,508,546   10/510,151   6,679,584   10/510,000       6,857,724   10/509,998   6,652,052   10/509,999   6,672,706       10/510,096   6,688,719   6,712,924   6,588,886   7,077,508       7,207,654   6,935,724   6,927,786   6,988,787   6,899,415       6,672,708   6,644,767   6,874,866   6,830,316   6,994,420       6,954,254   7,086,720   7,240,992   7,267,424   7,128,397       7,084,951   7,156,496   7,066,578   7,101,023   11/165,027       11/202,235   11/225,157   7,159,965   7,255,424   11/349,519       7,137,686   7,201,472   11/442,413   11/504,602   7,216,957       11/520,572   11/583,858   11/583,895   11/585,976   11/635,488       11/653,314   11/706,952   11/706,307   11/785,109   11/740,287       11/754,367   11/758,643   11/778,572   11/859,791   11/863,260       6,916,082   6,786,570   10/753,478   6,848,780   6,966,633       7,179,395   6,969,153   6,979,075   7,132,056   6,832,828       6,860,590   6,905,620   6,786,574   6,824,252   7,097,282       6,997,545   6,971,734   6,918,652   6,978,990   6,863,105       10/780,624   7,194,629   10/791,792   6,890,059   6,988,785       6,830,315   7,246,881   7,125,102   7,028,474   7,066,575       6,986,202   7,044,584   7,210,762   7,032,992   7,140,720       7,207,656   11/031,084   11/048,748   7,008,041   7,011,390       7,048,868   7,014,785   7,131,717   11/148,236   11/176,158       7,182,436   7,104,631   7,240,993   11/206,920   11/202,217       7,172,265   11/231,876   7,066,573   11/298,635   7,152,949       11/442,161   11/442,133   11/442,126   7,156,492   11/478,588       11/505,848   11/520,569   11/525,861   11/583,939   11/545,504       11/583,894   11/635,485   11/730,391   11/730,788   11/749,148       11/749,149   11/749,152   11/749,151   11/759,886   11/865,668       6,824,257   7,270,475   6,971,811   6,878,564   6,921,145       6,890,052   7,021,747   6,929,345   6,811,242   6,916,087       6,905,195   6,899,416   6,883,906   6,955,428   10/882,775       6,932,459   6,962,410   7,033,008   6,962,409   7,013,641       7,204,580   7,032,997   6,998,278   7,004,563   6,910,755       6,969,142   6,938,994   7,188,935   10/959,049   7,134,740       6,997,537   7,004,567   6,916,091   7,077,588   6,918,707       6,923,583   6,953,295   6,921,221   7,001,008   7,168,167       7,210,759   11/008,115   11/011,120   11/012,329   6,988,790       7,192,120   7,168,789   7,004,577   7,052,120   11/123,007       6,994,426   7,258,418   7,014,298   11/124,348   11/177,394       7,152,955   7,097,292   7,207,657   7,152,944   7,147,303       11/209,712   7,134,608   7,264,333   7,093,921   7,077,590       7,147,297   11/239,029   11/248,832   11/248,428   11/248,434       7,077,507   7,172,672   7,175,776   7,086,717   7,101,020       11/329,155   7,201,466   11/330,057   7,152,967   7,182,431       7,210,666   7,252,367   11/450,586   11/485,255   11/525,860       6,945,630   7,018,294   6,910,014   6,659,447   6,648,321       7,082,980   6,672,584   7,073,551   6,830,395   10/309,025       7,001,011   6,880,922   6,886,915   6,644,787   6,641,255       7,066,580   6,652,082   10/309,036   6,666,544   6,666,543       6,669,332   6,984,023   6,733,104   6,644,793   6,723,575       6,953,235   6,663,225   7,076,872   7,059,706   7,185,971       7,090,335   6,854,827   6,793,974   10/636,258   7,222,929       6,739,701   7,073,881   7,155,823   7,219,427   7,008,503       6,783,216   6,883,890   6,857,726   10/636,274   6,641,256       6,808,253   6,827,428   6,802,587   6,997,534   6,959,982       6,959,981   6,886,917   6,969,473   6,827,425   7,007,859       6,802,594   6,792,754   6,860,107   6,786,043   6,863,378       7,052,114   7,001,007   10/729,151   10/729,157   6,948,794       6,805,435   6,733,116   10/683,006   7,008,046   6,880,918       7,066,574   6,983,595   6,923,527   7,275,800   7,163,276       7,156,495   6,976,751   6,994,430   7,014,296   7,059,704       7,160,743   7,175,775   11/058,238   7,097,283   7,140,722       11/123,009   11/123,008   7,080,893   7,093,920   7,270,492       7,128,093   7,052,113   7,055,934   11/155,627   11/149,324       11/159,197   7,083,263   7,145,592   7,025,436   11/281,444       7,258,421   11/478,591   11/478,735   7,226,147   11/482,940       7,195,339   11/503,061   11/505,938   11/520,577   11/525,863       11/544,577   11/540,576   11/585,964   11/592,991   11/599,342       11/600,803   11/604,321   11/604,302   11/635,535   11/635,486       11/643,842   11/655,987   11/650,541   11/706,301   11/707,039       11/730,388   11/730,786   11/730,785   11/739,080   11/764,746       11/768,875   11/779,847   11/829,940   11/847,240   11/834,625       11/863,210   11/865,680   7,067,067   6,776,476   6,880,914       7,086,709   6,783,217   7,147,791   6,929,352   7,144,095       6,820,974   6,918,647   6,984,016   7,192,125   6,824,251       6,834,939   6,840,600   6,786,573   7,144,519   6,799,835       6,959,975   6,959,974   7,021,740   6,935,718   6,938,983       6,938,991   7,226,145   7,140,719   6,988,788   7,022,250       6,929,350   7,011,393   7,004,566   7,175,097   6,948,799       7,143,944   10/965,737   7,029,100   6,957,811   7,073,724       7,055,933   7,077,490   7,055,940   10/991,402   7,234,645       7,032,999   7,066,576   7,229,150   7,086,728   7,246,879       11/144,809   7,140,718   11/144,802   7,144,098   7,044,577       11/144,808   11/172,896   7,189,334   7,055,935   7,152,860       11/203,188   11/203,173   11/202,343   7,213,989   11/225,156       11/225,173   11/228,433   7,114,868   7,168,796   7,159,967       11/272,425   7,152,805   11/298,530   11/330,061   7,133,799       11/330,054   11/329,284   7,152,956   7,128,399   7,147,305       11/446,241   11/442,160   7,246,884   7,152,960   11/442,125       11/454,901   11/442,134   11/450,441   11/474,274   11/499,741       7,270,399   6,857,728   6,857,729   6,857,730   6,989,292       7,126,216   6,977,189   6,982,189   7,173,332   7,026,176       6,979,599   6,812,062   6,886,751   10/804,057   10/804,036       7,001,793   6,866,369   6,946,743   10/804,048   6,886,918       7,059,720   10/846,561   10/846,562   10/846,647   10/846,649       10/846,627   6,951,390   6,981,765   6,789,881   6,802,592       7,029,097   6,799,836   7,048,352   7,182,267   7,025,279       6,857,571   6,817,539   6,830,198   6,992,791   7,038,809       6,980,323   7,148,992   7,139,091   6,947,173   7,101,034       6,969,144   6,942,319   6,827,427   6,984,021   6,984,022       6,869,167   6,918,542   7,007,852   6,899,420   6,918,665       6,997,625   6,988,840   6,984,080   6,845,978   6,848,687       6,840,512   6,863,365   7,204,582   6,921,150   7,128,396       6,913,347   7,008,819   6,935,736   6,991,317   11/033,122       7,055,947   7,093,928   7,100,834   7,270,396   7,187,086       11/072,518   7,032,825   7,086,721   11/171,428   7,159,968       7,010,456   7,147,307   7,111,925   11/144,812   7,229,154       11/505,849   11/520,570   11/520,575   11/546,437   11/540,575       11/583,937   11/584,619   11/592,211   11/592,207   11/635,489       11/604,319   11/635,490   11/635,525   11/650,540   11/706,366       11/706,310   11/706,308   11/785,108   11/744,214   11/744,218       11/748,485   11/748,490   11/764,778   11/766,025   11/834,635       11/839,541   11/860,420   11/865,693   11/863,118   11/866,307       11/866,340   11/869,684   11/869,722   11/869,694   11/872,714                    
The disclosures of these applications and patents are incorporated herein by reference.
 
       BACKGROUND OF THE INVENTION 
       [0007]    Inkjet printing is a popular and versatile form of print imaging. The Assignee has developed printers that eject ink through MEMS printhead IC&#39;s. These printhead IC&#39;s (integrated circuits) are formed using lithographic etching and deposition techniques used for semiconductor fabrication. 
         [0008]    The micro-scale nozzle structures in MEMS printhead IC&#39;s allow a high nozzle density (nozzles per unit of IC surface area), high print resolutions, low power consumption, self cooling operation and therefore high print speeds. Such printheads are described in detail in U.S. Ser. No. 10/160,273 (Our Docket No. MJ40US) filed Jun. 4, 2002 and U.S. Ser. No. 10/728,804 (Our Docket No MTB01US) filed on Dec. 8, 2003 to the present Assignee. The disclosures of these documents are incorporated herein by reference. 
         [0009]    The small nozzle structures and high nozzle densities can create difficulties with nozzle clogging, de-priming, nozzle drying (decap), color mixing, nozzle flooding, bubble contamination in the ink stream and so on. Each of these issues can produce artifacts that are detrimental to the print quality. The component parts of the printer are designed to minimize the risk that these problems will occur. The optimum situation would be printer components whose inherent function is able to preclude these problem issues from arising. In reality, the many different types of operating conditions, and mishaps or unduly rough handling during transport or day to day operation, make it impossible to address the above problems via the ‘passive’ control of component design, material selection and so on. 
         [0010]    To address this, the Applicant has developed printers with active control of the fluidic systems. These active fluidic systems are described in co-pending application Ser. Nos. 11/482,982; 11/482,983; 11/482,984; 11/495,818; 11/495,819; 11/677,049; 11/677,050; 11/677,051, the contents of which are incorporated by cross reference. While these systems provide the user with the ability to actively manage the static and dynamic fluid conditions throughout the printer, it has been found that the active components within a printer are responsible for a large proportion of the ink borne contaminants. Pumps in particular are prone to shedding particles into the ink flow which can be detrimental to the operation of the nozzles. The wear and friction of surfaces acting against each other eventually generate particle which are directly entrained in the ink flow. Many of the above referenced fluidic designs use peristaltic pumps which introduce additional problems. The flexible tubing within the pump can eventually crack and leak, the tubing loses elasticity and no longer returns to a fully open condition, and the pump has a high torque requirement because of the need to compress the tubing enough to form a seal. To meet the torque requirements, the pump needs to be relatively large which is counter a compact form factor for the printer as a whole. 
         [0011]    Ink borne contaminants can be removed with a filter upstream of the printhead. However, the particle size requires the filter pore size to be very small. To maintain the ink flow rate required by a high speed, pagewidth printhead, the filter surface area needs to be impractically large and precludes the compactness required by market expectations. 
       SUMMARY OF THE INVENTION 
       [0012]    Accordingly, the present invention provides an inkjet printer comprising: 
         [0013]    a printhead for printing onto a media substrate; 
         [0014]    a reservoir for supplying ink to the printhead; 
         [0015]    a pump for drawing ink from the reservoir and pumping ink into the printhead; and, 
         [0016]    a valve arrangement for selectively opening fluid communication between the pump and the printhead, and closing fluid communication between the pump and the printhead while opening fluid communication between the reservoir and the printhead. 
         [0017]    The invention is predicated on the realization that the purging and priming functions of the pump can be performed while in fluid communication with the printhead and then be fluidically isolated from the printhead when printing. By removing the pump from the direct fluid line between the reservoir and the printhead, the valve arrangement allows it to connect to the reservoir or the printhead only when necessary. The purging and priming operations have become a two-stage processes where the pump initially draws a charge of ink from the reservoir and then delivers it to the printhead. The ink from the pump can be passed through a fine filter to remove any particulate contaminants without then constricting the ink flow from the reservoir during normal printing operations. 
         [0018]    Preferably, the printer further comprises a filter for ink flowing from the pump to the printhead, the filter being positioned such that it is not in fluid communication with the printhead when the valve arrangement is configured for fluid communication between the reservoir and the printhead. 
         [0019]    Preferably, the valve arrangement is configured such that the pump is not in fluid communication with the reservoir whenever the pump is in fluid communication with the printhead. 
         [0020]    Preferably, the valve arrangement is configured such that the pump is not in fluid communication with the reservoir whenever the reservoir is in fluid communication with the printhead. 
         [0021]    Preferably, the printer further comprises an upstream line for establishing fluid communication between the reservoir and the printhead wherein the valve arrangement is a three-way valve in the upstream line and the pump connects to the three-way valve via a branch line, the three way valve having three settings; a first setting connecting the upstream line to the reservoir to the upstream line to the printhead while closing the branch line, a second setting connecting the branch line to the upstream line to the reservoir while closing the upstream line to the printhead, and a third setting connecting the branch line to the upstream line to the printhead while closing the upstream line to the reservoir. 
         [0022]    Preferably, the pump has a chamber with a reciprocating plunger. In another embodiment, the pump is a bulb of elastomeric material for holding a volume of ink and an actuator for selectively compressing the bulb. 
         [0023]    Preferably, the reservoir has a pressure regulator for establishing a predetermined pressure in a headspace above the ink in the reservoir, the predetermined pressure being less than atmospheric pressure. In a further preferred form, the pump draws ink from the reservoir to reduce the pressure in the headspace to the predetermined pressure in preparation for printing. 
         [0024]    Preferably, the ink drawn from the reservoir by the pump in preparation for printing is pumped into the printhead in preparation for printing. Preferably, the printhead has a distribution manifold and a plurality of printhead integrated circuits mounted to the distribution manifold such that priming the distribution manifold with ink also primes the printhead integrated circuits. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0025]    Preferred embodiments of the invention will now be described by way of example only, with reference to the accompanying drawings in which: 
           [0026]      FIG. 1  shows a schematic diagram of a printer fluidic system according to the present invention whilst in a standby mode; 
           [0027]      FIG. 2  shows the fluidic system of  FIG. 1  in a ink tank pressurization mode; 
           [0028]      FIG. 3  shows the fluidic system of  FIG. 1  in a printhead priming/purging mode; 
           [0029]      FIG. 4  shows the fluidic system of  FIG. 1  in the printing mode; and, 
           [0030]      FIG. 5  schematically shows an alternative ink pump arrangement for the fluidic system. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0031]    Referring to  FIGS. 1 to 3 , the printer fluidics system is shown schematically for the purposes of illustration. The fluidic architecture shown in the figures is for a single ink line for one color only. A color printer would have separate lines and ink tanks for each ink color. Most of the individual components within the system are shown and described in much greater detail in the Applicant&#39;s co-pending application U.S. Ser. No. 11/688,863 (Our Docket RRE001US), filed on Mar. 21, 2007, the contents of which are incorporated herein by cross reference. Components of the present system that are not shown in the cross referenced document, are commercially available. 
         [0032]    The fluidic system shown in  FIGS. 1 to 3  has a printhead  2  supplied with ink  46  from an ink tank  8  via an upstream ink line  20 . The upstream ink line  20  has a three-way valve  18  which connects to the pump  30  via a filter  32 . A downstream line  24  connects the printhead  2  to a sump  28  via a shut off valve  26 . The printhead has a maintenance station  22  for capping, blotting and wiping the nozzles. A drain line  34  connects the maintenance station  22  to the sump  28 . 
         [0033]    The printhead  2  is an assembly of an ink distribution manifold  4  on which a series of printhead integrated circuits (ICs)  6  are mounted. The printhead ICs  6  define the nozzle arrays which eject the ink to the media substrate. The nozzles are MEMS devices which can be thermally actuated such as those described in U.S. Ser. No. 11/482,953 (Our Docket No. MTD001US) filed on Jul. 10, 2006 or mechanically actuated such as those disclosed in U.S. Ser. No. 10/160,273 (Our Docket No. MJ40US) filed Jun. 4, 2002. 
         [0034]    The ink distribution manifold  4  is an LCP molding with a system of large channels feeding a network of smaller channels to supply the ink to many points along the length of each printhead IC  6 . An embodiment of the distribution manifold  4  and the printhead ICs  6  is disclosed in detail in U.S. Ser. No. 11/688,863 (Our docket No. RRE001US) filed Mar. 21, 2007 reference listed above. This document also details the manner in which the printhead is primed with ink or, if necessary, purged of ink to correct any cross channel color contamination and/or bubble removal. 
         [0035]    The ink tank  8  and the bubble point pressure regulator  10  are described in co-pending U.S. Ser. No. 11/872,714 (Our Docket RMC010US) filed Oct. 16, 2007, incorporated herein by reference. However, for the purposes of this description, the regulator  10  is shown as a bubble outlet  76  in the tank headspace  12  and vented to atmosphere via microchannel  74  extending to an air inlet  78 . Ink is retained in the microchannel  74  by capillary action. As the printhead IC&#39;s  6  consume ink, the pressure in the tank  8  drops until the pressure difference at the bubble outlet  76  sucks air into the tank. The air is drawn through an air filter  16  to remove contaminants that might clog or obstruct the microchannel  74 . The filtered air forms a bubble in the ink within the micrchannel  74  which travels to the outlet  76 . This pressure difference is the bubble point pressure and will depend on the diameter (or smallest dimension) of the microchannel  74  and the Laplace pressure of the ink meniscus. This maintains a constant negative pressure in the headspace  12 . The hydrostatic pressure in the ink at the outlet to the tank  8  will vary as the ink level drops. To minimize this variation, the ink tanks  8  are dimensioned to be short and squat. 
         [0036]      FIG. 1  shows the printer is a standby mode. The printhead  2  is fluidically isolated from the ink tank  8  by the three-way valve  18 . This prevents any ink mixing across the nozzles of the printhead ICs  6  from diffusing up into the tank  8 . The valve  18  connects the tank  8  to the pump  30  via the branch line  36 . The pump  30  is a piston  38  that reciprocates in a chamber  40 . It is possible to use a peristaltic pump but these suffer the problems discussed above in the background to the invention. Namely, the potential for failure of the tubes, inaccuracy as the tubes no longer return to their original uncompressed shape and high torque requirements. A more suitable pump is shown in  FIG. 5 . The branch line  36  feeds a bulb  30  of elastomeric material. Actuator  38  compresses or releases the bulb  30  to pump ink toward the printhead or draw ink from the tank. 
         [0037]    During long periods of standby, the pressure in the headspace  12  can rise above the bubble point pressure. Outgassing of dissolved gases, and diurnal temperature variation can cause pressure increases. In the worst case, the headspace  12  pressure is no longer negative relative to atmosphere. 
         [0038]      FIG. 2  shows the printer coming out of standby and preparing for a print job. The piston  38  retracts in the chamber  40  to draw ink  46  out of the tank  8 . The ink displacement lowers the air pressure in the headspace  12  until the bubble point regulator  10  allows air into the tank  8 . With the headspace at the bubble point pressure, the negative hydrostatic pressure of the ink is within the expected operating range required by the printhead  2 . 
         [0039]      FIG. 3  shows the priming or purging of the printhead  2  in preparation for printing. The valve  18  is reconfigured to close fluid communication between the pump  30  and the tank  8 , and open fluid communication between the pump  30  and the printhead  2 . The ink in the pump is forced out of the chamber  40  by depressing the piston  38 . The ink is forced through the filter  32  to remove any particulate contaminants shed by the pump. To prime the printhead  2 , ink is forced into the main channels of the ink distribution manifold  4  and from there, capillary action primes the small conduits and the nozzles in each of the printhead ICs  6 . This is done with the shut off valve  26  in the downstream line  24  open so that any excess ink feeds straight to the sump  28 . 
         [0040]    If the printhead  2  contains ink when it is brought out of standby, it may be necessary to remove air bubbles or mixed ink. The problem of ink mixing is discussed in detail in the cross referenced application U.S. Ser. No. 11/688,863 (Our docket No. RRE001US) filed Mar. 21, 2007, listed above. Put briefly, the ink from nozzles of one color can wick across the surface of the printhead ICs  6 , and diffuse into ink in the nozzles and supply lines for another color. This is corrected with a printhead purge. The downstream shutoff valve  26  is closed and filtered ink from the pump  30  is forced through the distribution manifold  4  to flood the printhead ICs  6 . The maintenance station  22  cleans away the flooded ink. 
         [0041]      FIG. 4  shows the printer in printing mode. The three-way valve  18  is configured to fluidly connect the tank  8  to the printhead  2 . The blind end  44  seals off the branch line  36  to the pump  30 . The ejection of ink from the nozzles on the printhead ICs  6  draws ink from the ink tank  8 . The upstream ink line  20  is not constricted by the filter  32  or any of the structural elements of the pump  30 . In the embodiment shown in U.S. Ser. No. 11/688,873 (Our Docket RRE010US), filed on Mar. 21, 2007, the printhead  2  is a pagewidth printhead that prints full color at photographic quality resolution at a rate greater than one page per second. This requires a high ink supply flow rate which is not throttled by unnecessary elements in the upstream ink line  20 . 
         [0042]    At the completion of the print job, the printer can return to standby mode as shown in  FIG. 1 . The valve  18  moves the blind end  44  over the upstream ink line  20  to seal the printhead  2  from the tank  8 . This prevents any ink mixing at the printhead from reaching the ink tank. Ink contamination in the tank would be irretrievable and has to be replaced. As a further safeguard against color mixing, the shut off valve  26  is held open during standby. The sump  28  is at a lower elevation relative to the printhead ICs  6 . This allows the column of ink in the downstream ink line  24  to ‘hang’ from the distribution manifold  4  to create a negative hydrostatic pressure at the printhead ICs  6 . A negative pressure at the nozzles draws the ink meniscus inwards and inhibits color mixing. 
         [0043]    The maintenance station  22  that seals the nozzles during standby periods to avoid dehydration of the printhead ICs  6  and shield the nozzle plate from paper dust and other particulates. The maintenance station  22  is also configured to wipe the nozzle plate to remove dried ink and other contaminants Dehydration of the printhead ICs  6  occurs when the ink solvent, typically water, evaporates and increases the viscosity of the ink. If the ink viscosity is too high, the ink ejection actuators fail to eject ink drops. Dehydrated nozzles are typically a problem when reactivating the printer after a power down or standby period. 
         [0044]    The problems outlined above are not uncommon during the operative life of a printer and can be effectively corrected with the relatively simple fluidic architecture shown in the figures. It also allows the user to initially prime the printer, deprime the printer prior to moving it, or restore the printer to a known print ready state using simple trouble-shooting protocols. Several examples of these situations are described in detail in the above referenced U.S. Ser. No. 11/677,049 (Our Docket SBF006US) filed on Feb. 21, 2007. 
         [0045]    The invention has been described by way of example only. Ordinary workers in this field will readily recognize any variations and modifications which do not depart from the spirit and scope of the broad inventive concept.