There are people who say their inkjet cartridges are good, that their cartridges understand them and run without inviting any trouble. This group is lucky and never lodges any complaint against their inkjet vendors. But, other side of the coin hosts those who have been struggling hard to describe the potentiality of their cartridges. For them their cartridges come with a set of troubles namely clogged nozzles, low life span, bad color output to name a few. They purchase cartridges that belong to good brand and available in reputed stores. Then, what causes these problems?