LIQUID CARTRIDGE DETERMINATION SYSTEMS AND LIQUID CARTRIDGE DETERMINATION METHODS

• US 20080291251A1
• Filed: 05/23/2008
• Published: 11/27/2008
• Est. Priority Date: 05/25/2007
• Status: Active Grant

• Current Assignee: Brother Kogyo Kabushiki Kaisha (Brother Industries Limited)
• Original Assignee: Brother Kogyo Kabushiki Kaisha (Brother Industries Limited)
• Inventors: Hattori, Shingo
• Granted Patent: US 8,317,306 B2
• Time in Patent Office: Days
• US Class Current: 347/86
• CPC Class Codes: B41J 2/17513 Inner structure
• CPC Class Codes: B41J 2/1752 Mounting within the printer
• CPC Class Codes: B41J 2/17546 electronically
• CPC Class Codes: B41J 2/17553 Outer structure
• CPC Class Codes: B41J 2/17566 Ink level or ink residue control

Abstract

A liquid cartridge determination system includes a liquid cartridge including a main body including a first detect portion. The system also includes a movable member positioned outside the liquid chamber and configured to move relative to the main body in a particular direction. The movable member includes a second detect portion. Moreover, the system includes a resilient member having a first end which is coupled to the main body and a second end which is coupled to the movable member, and a mounting portion configured to receive the liquid cartridge thereon. The system further includes a first detector configured to detect the first detect portion when the liquid cartridge is positioned in a first position relative to the mounting portion, a second detector configured to detect the second detect portion when the liquid cartridge is positioned in a second position relative to the mounting portion, and a determiner configured to determine whether the liquid cartridge has a predetermined characteristic associated therewith based on the detection of the first detect portion and the detection of the second detect portion.

Claims

1. A liquid cartridge determination system, comprising:

a liquid cartridge comprising;

a main body having a liquid chamber defined therein, wherein the liquid chamber is configured to store liquid therein, and the main body comprises a first detect portion;

a movable member positioned outside the liquid chamber and configured to move relative to the main body in a particular direction, wherein the movable member comprises a second detect portion; and

a resilient member having a first end which is coupled to the main body and a second end which is coupled to the movable member;

a mounting portion configured to receive the liquid cartridge thereon, wherein the liquid cartridge is configured to be inserted into the mounting portion in the particular direction;

a first detector configured to detect the first detect portion when the liquid cartridge is positioned in a first position relative to the mounting portion;

a second detector configured to detect the second detect portion when the liquid cartridge is positioned in a second position relative to the mounting portion, wherein the first position is different than the second position; and

a determiner configured to determine whether the liquid cartridge has at least one predetermined characteristic associated therewith based on the detection of the first detect portion by the first detector and the detection of the second detect portion by the second detector.

2. The liquid cartridge determination system of claim 1, wherein the determiner is further configured to determine whether the liquid cartridge has the at least one predetermined characteristic associated therewith based on a time difference between a first time when the first detect portion is detected by the first detector and a second time when the second detect portion is detected by the second detector.

3. The liquid cartridge determination system of claim 2, wherein the liquid cartridge has the at least one predetermined characteristic associated therewith when the time difference is outside a predetermined range of time.

4. The liquid cartridge determination system of claim 2, wherein the liquid cartridge has the at least one predetermined characteristic associated therewith when the time difference is less than a predetermined value.

5. The liquid cartridge determination system of claim 1, wherein the main body further comprises:

a front face, wherein the first detect portion is positioned at the front face; and

a rear face opposite the front face, wherein the first end of the resilient member is coupled to the rear face, and the movable member further comprises;

a rear wall covering the rear face, wherein the second end of the resilient member is coupled to the rear wall; and

a particular wall having a first end which is connected to the rear wall and a second end opposite the first end of the particular wall, wherein the particular wall extends from the first end of the particular wall to the second end of the particular wall in the particular direction, and the second detect portion is positioned at the second end of the particular wall.

6. The liquid cartridge determination system of claim 5, wherein the main body further comprises:

a top face connected to the front face and the rear face;

a bottom face opposite the top face, wherein the bottom face is connected to the front face and the rear face; and

a pair of side faces, each connected to the front face, the rear face, the top face, and the bottom face, and the movable member further comprises;

a further wall opposite the particular wall, wherein the further wall is connected to the rear wall, one of the particular wall and the further wall covers at least a portion of the top face, and the other of the particular wall and the further wall covers at least a portion of the bottom face; and

a pair of side walls each connected to the rear wall, the particular wall, and the further wall, wherein the pair of side walls covers at least a portion of the pair of side faces, respectively.

7. The liquid cartridge determination system of claim 1, wherein the resilient member is configured to selectively contract and expand to move the movable member relative to the case in the particular direction and in a further direction opposite the particular direction, respectively.

8. The liquid cartridge system of claim 1, wherein the at least one predetermined characteristic comprises at least one defect associated with the liquid cartridge.

9. A liquid cartridge determination method, comprising the steps of:

detecting a first detect portion of a main body of an liquid cartridge when the liquid cartridge is positioned in a first position relative to a mounting portion to which the liquid cartridge is mounted, wherein the main body has a liquid chamber defined therein, and the liquid chamber is configured to store liquid therein;

detecting a second detect portion of a movable member of the liquid cartridge when the liquid cartridge is positioned in a second position relative to the mounting portion, wherein the movable member is coupled to the main body via a resilient member, and the first position is different than the second position; and

determining whether the liquid cartridge has at least one predetermined characteristic associated therewith based on the detection of the first detect portion and the detection of the second detect portion.

10. The liquid cartridge determination method of claim 9, wherein the step of determining further comprises determining whether the liquid cartridge has the at least one predetermined characteristic associated therewith based on a time difference between a first time when the first detect portion is detected and a second time when the second detect portion is detected.

11. The liquid cartridge determination method of claim 10, wherein the liquid cartridge has the at least one predetermined characteristic associated therewith when the time difference is outside a predetermined range of time.

12. The liquid cartridge determination method of claim 10, wherein the liquid cartridge has the at least one predetermined characteristic associated therewith when the time difference is less than a predetermined value.

13. The liquid cartridge determination method of claim 9, wherein the at least one predetermined characteristic comprises at least one defect associated with the liquid cartridge.