Ink jet recording head and ink jet recording apparatus

An ink jet recording head comprising:

• a non-linear element capable of passing a current for generating thermal energy in a heat generating portion to be utilized to discharge ink;
• and
• a wiring for energizing said non-linear element,
• wherein resistance of said wiring is used as a current adjusting resistor for adjusting current flowing in a circuit including said non-linear element and said wiring, and a resistance value of said wiring resistance is from 0.1 to 10 times a resistance value of said non-linear element in an operating condition.

An ink jet recording head comprising:

• a non-linear element having a non-linear current/voltage property and capable of passing a current for generating thermal energy in a heat generating portion to be utilized to discharge ink;
• and
• matrix electrodes constituting a matrix circuit for applying voltage to said non-linear element,
• wherein said non-linear element is disposed at a junction of said matrix circuit and a current/voltage property at said junction is such that differential resistance at a driving voltage is 40 to 250 Ω.

An ink jet recording head comprising:

• a non-linear element having a non-linear current/voltage property and capable of passing a current for generating thermal energy in a heat generating portion to be utilized to discharge ink;
• and
• matrix electrodes constituting a matrix circuit for applying voltage to said non-linear element,
• wherein said non-linear element is disposed at a junction of said matrix circuit and a current/voltage property at said junction is such that an effective current starts to flow at said junction from the time that a voltage at said junction reaches a value of about ½ of an operating voltage and a desired current flows at the operating voltage.

An ink jet recording head comprising:

• a non-linear element having a non-linear current/voltage property and capable of passing a current for generating thermal energy in a heat generating portion to be utilized to discharge ink;
• and
• matrix electrodes constituting a matrix circuit for applying voltage to said non-linear element,
• wherein said non-linear element is disposed at a junction of said matrix circuit and a current/voltage property at said junction is such that an effective current starts to flow at said junction from the time that a voltage at said junction reaches a value of about ⅓ of an operating voltage and a desired current flows at the operating voltage.