| 摘要 |
PROBLEM TO BE SOLVED: To provide means with which an electric interface provided in a printing fluid cartridge is reliably electrically connected.SOLUTION: An ink cartridge 30 includes a main body 31 including a storage chamber 36 containing ink between a front wall 40 and a rear wall 41, an ink supply unit 34 for causing the ink contained in the storage chamber 36 to flow out, and an electronic substrate 74 provided on an upper wall 39 of the main body 31. The electronic substrate 74 has a front surface 78 facing forwards in an insertion direction 56 and an upper surface 79 continuous from the front surface 78 and facing upward. A HOT electrode 75, a GND electrode 76, and a signal electrode 77 are provided on a ridge line 69 which serves as a boundary between the front surface 78 and the upper surface 79. |
