Patent ID: 6457796
Filing Date: 2002-10-01
Classification: B41J

Abstract:
An ink jet recording head comprising:a first ink flowing path having a first thermal element that ejects ink supplied from one side thereof from an ejecting opening at the other side thereof as an ink droplet of a constant amount; and a second ink flowing path larger than the first ink flowing path and having a second thermal element and a third thermal element and that can eject ink supplied from one side thereof from an ejecting opening at the other side thereof as an ink droplet of an amount more than the constant amount as well as that can adjust the amount of the ink droplet to be ejected, wherein sets of ink flowing paths comprising the first ink flowing path and the second ink flowing path are alternately arranged, and wherein selective activation of the second thermal element and third thermal element adjusts the amount of an ink droplet from substantially the constant amount to an amount more than the constant amount.