How to Maintain INKJET PRINTER for smoot Function ??

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Hi friends, I have Cannor SP200 Model inkjet printer that i have bought 6 months ago..But i used in some special works only few time in Month...After 2 month i find that ink has been dried in the catridge then i refilled it from the market but after some time Head of Catridge has been Damaged and now Head is very costly..I cannot buy it...Help me how to Maintain the inkjet printer if i buy new head....tell me about your inkjet printer if you have,,,,