| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid ejection cartridge at low cost by reducing a unit cost of a print circuit board.SOLUTION: A liquid ejection cartridge 1 including a recording element substrate 5 for ejecting liquid includes a contact pad 2a that is an electrical contact part electrically connected to a terminal part of a carriage. The electrical contact part includes two print circuit boards 2, 3 provided at the same surface, where the first print circuit board 2 transfers a drive signal to the recording element substrate and the second print circuit board 3 transfers other signals than the drive signal. |
