Liquid ejection head and recording apparatus having the same

A liquid ejection head comprising:

• an ejection port for ejecting a liquid;
• a supply section and a discharge section for the liquid;
• a main flow channel which connects the supply section and the discharge section;
• a supply flow channel which branches off from the main flow channel and supplies the liquid to the ejection port;
• a filter which is disposed in the vicinity of a branch position in which the supply flow channel is branched from the main flow channel;
• and
• a sub flow channel, one end of which is connected to a first connection position closer to the supply section rather than the branch position in the main flow channel, and the other end of which is connected to a second connection position closer to the discharge section rather than the branch position in the main flow channel,
• wherein
• the main flow channel and the sub flow channel are formed such that, in supplying the liquid from the supply section to the main flow channel at a predetermined flow rate, the higher the predetermined flow rate is, the more the ratio of a flow rate in the main flow channel from the first connection position to the second connection position to a flow rate in the sub flow channel increases.