Inkjet recording apparatus

摘要

A first ink tank, and a second ink tank including a first chamber having an ink inlet port and a second chamber having a sensing unit are provided. The ink inlet port is provided at a position so that a volume of the second ink tank above a second height does not become smaller than an amount of ink volume change in the second chamber when the ink volume is changed from a first height which is a height of the ink surface when a minimum volume of ink is in the second ink tank under normal usage to a second height which is a height of the ink inlet port.

主权项

1. An inkjet recording apparatus comprising:
a first ink tank for storing ink; a second ink tank for receiving ink supplied from the first tank; a partitioning portion configured to partition the second ink tank to form a first chamber and a second chamber; a first communication port provided in the second ink tank and configured to make the first chamber and the second chamber communicate with each other; a second communication port provided in the second ink tank and configured to make the first chamber and the second chamber communicate with each other; an ink inlet port provided in the first chamber and configured to allow ink to flow from the first ink tank to the second ink tank, and a sensing unit provided in the second chamber and configured to sense the amount of ink in the second ink tank, wherein the ink inlet port is provided at a position such that when a height of the ink surface when a minimum volume of ink is in the second ink tank under normal usage is a first height and a height of the ink inlet port is a second height, a volume in the second ink tank above the second height does not become smaller than an amount of ink volume change in the second chamber when the volume of the ink is changed from the first height to the second height, and the second communication port is arranged above the second height.