Ink-jet printing apparatus

1. An ink-jet printing apparatus comprising:

an ink-cartridge mounting unit to which an ink cartridge having a first ink chamber configured to contain ink is to be mounted; and

a second ink chamber configured to store ink supplied from the first ink chamber,

wherein the ink-jet printing apparatus is configured such that, in a case where the ink cartridge is mounted to the ink-cartridge mounting unit, the second ink chamber can be viewed from outside of the ink-jet printing apparatus, and

wherein 0.5 L≤d≤1.2 L is satisfied, where d is a length of the second ink chamber, and L is a length of the ink cartridge in a direction in which the ink cartridge is inserted into the ink-jet printing apparatus, and

wherein the second ink chamber includes an air communication port connected to a tube having an air-liquid separation film at an opening of the tube that is disposed vertically above the first ink chamber.

2. The ink-jet printing apparatus according to claim 1 , wherein, in the case where the ink cartridge is mounted to the ink-cartridge mounting unit, the second ink chamber can be viewed from the outside of the ink-jet printing apparatus through a transparent member.

3. The ink-jet printing apparatus according to claim 1 , wherein, in the case where the ink cartridge is mounted to the ink-cartridge mounting unit, the second ink chamber is directly exposed to the outside of the ink-jet printing apparatus.

4. The ink-jet printing apparatus according to claim 1 , wherein, in the case where the ink cartridge is mounted to the ink-cartridge mounting unit, the second ink chamber extends vertically below the ink cartridge.

5. The ink-jet printing apparatus according to claim 1 , wherein, in the case where the ink cartridge is mounted to the ink-cartridge mounting unit, the ink cartridge is mounted to the ink-cartridge mounting unit with a colored member opened and is then partially covered by the colored member.

6. The ink-jet printing apparatus according to claim 1 , wherein, in the case where the ink cartridge is mounted to the ink-cartridge mounting unit, the ink cartridge can be viewed from the outside of the ink-jet printing apparatus.

7. The ink-jet printing apparatus according to claim 6 , wherein, in the case where the ink cartridge is mounted to the ink-cartridge mounting unit, the ink cartridge can be viewed from the outside of the ink-jet printing apparatus through a transparent member.

8. The ink-jet printing apparatus according to claim 1 , wherein the second ink chamber includes a rotatable member configured to detect an amount of ink stored in the second ink chamber.

9. The ink-jet printing apparatus according to claim 1 , wherein the ink cartridge is mounted to the ink-cartridge mounting unit along a horizontal direction.

10. The ink-jet printing apparatus according to claim 1 , wherein the ink cartridge is mounted to the ink-cartridge mounting unit along a vertical direction.

11. The ink-jet printing apparatus according to claim 10 , wherein, in the case where the ink cartridge is mounted to the ink-cartridge mounting unit, the second ink chamber is disposed vertically below the ink cartridge.

12. The ink-jet printing apparatus according to claim 1 , wherein, in the case where the ink cartridge is mounted to the ink-cartridge mounting unit, the second ink chamber is disposed horizontally side by side with respect to the ink cartridge.

13. The ink-jet printing apparatus according to claim 1 , wherein 0.5 L≤d≤L is satisfied.

14. The ink-jet printing apparatus according to claim 1 , wherein 0.5 L≤d≤0.9 L is satisfied.

15. The ink-jet printing apparatus according to claim 1 , wherein a bottom of the second ink chamber is inclined.

16. The ink-jet printing apparatus according to claim 1 , wherein the ink-jet printing apparatus is configured such that an ink level in the second ink chamber can be viewed through transparency in the second ink chamber.

17. The ink-jet printing apparatus according to claim 1 ,

wherein the ink-jet printing apparatus is configured such that, in the case where the ink cartridge is mounted to the ink-cartridge mounting unit, the ink stored inside the second ink chamber can be viewed from outside of the ink-jet printing apparatus, and

wherein a condition of the ink stored inside the second ink chamber is one of being filled and the ink-jet printing apparatus is configured such that progress of the second ink chamber being filled with ink can be viewed and be determined, and thereby a correct understanding regarding consumption the ink can be received.