Ink-jet printing apparatus and ink cartridge therefor

• US 20050195255A1
• Filed: 04/25/2005
• Published: 09/08/2005
• Est. Priority Date: 05/18/1998
• Status: Active Grant

• Current Assignee: Fujio Akahane, Makoto Matsuzaki, Minoru Usui, Satoshi Shinada, Takao Kobayashi
• Original Assignee: Fujio Akahane, Makoto Matsuzaki, Minoru Usui, Satoshi Shinada, Takao Kobayashi
• Inventors: Akahane, Fujio, Usui, Minoru, Kobayashi, Takao, Shinada, Satoshi, Matsuzaki, Makoto
• Granted Patent: US 7,284,847 B2
• Time in Patent Office: Days
• US Class Current: 347/86
• CPC Class Codes: B41J 2/17503 Ink cartridges
• CPC Class Codes: B41J 2/17513 Inner structure
• CPC Class Codes: B41J 2/1752 Mounting within the printer
• CPC Class Codes: B41J 2/17523 Ink connection
• CPC Class Codes: B41J 2/17526 Electrical contacts to the cartridge
• CPC Class Codes: B41J 2/1753 Details of contacts on the cartridge, e.g. protection of contacts
• CPC Class Codes: B41J 2/17546 electronically
• CPC Class Codes: B41J 2/17553 Outer structure
• CPC Class Codes: B41J 2/17559 Cartridge manufacturing
• CPC Class Codes: B41J 25/304 Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
• CPC Class Codes: D06M 11/44 Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
• CPC Class Codes: D06M 13/44 containing nitrogen and phosphorus
• CPC Class Codes: D06M 15/667 containing phosphorus in the main chain inorganic polyphosphates D06M11/72

Abstract

An ink jet type printing apparatus in which an ink supply needle is located near one side in a direction perpendicular to the reciprocated directions of a carriage, a circuit board is mounted on a wall of an ink cartridge in the vicinity of the side on which an ink supply port is formed and plural contacts for connecting to external control means are formed on the exposed surface of the circuit board.

Claims

1. An ink cartridge for mounting on an ink jet printing apparatus having a plurality of contact members and a printhead which ejects ink droplets onto a recording medium, the ink cartridge comprising:

a housing containing ink therein and having an exterior;

an ink supply port formed on a wall of said housing for directing ink in said housing to the printhead;

a semiconductor storage device storing information of ink disposed on said housing; and

a plurality of terminals provided on the exterior of said housing, including a terminal for electrically connecting said semiconductor storage device to the ink jet printing apparatus and a terminal for electrically connecting to at least two of the contact members of the printing apparatus.

2. The ink cartridge according to claim 1, wherein said at least one terminal which contacts to at least two contact members of the printing apparatus has an area larger than that of the other terminals.

3. The ink cartridge according to claim 1, wherein said terminal which electrically connects to at least two contact members of the printing apparatus is grounded when the ink cartridge is mounted on the ink jet printing apparatus.

4. The ink cartridge according to claim 1, wherein, viewing the ink cartridge in a direction perpendicular to a plane of said at least one terminal which contacts to at least two contact members of the printing apparatus, said at least one terminal which contacts to at least two contact members of the printing apparatus is intersected by a plane passing through the centerline of the ink supply port.

5. The ink cartridge according to claim 1, wherein said at least one terminal which contacts to at least two contact members of the printing apparatus is located in the vicinity of said ink supply port.

6. An ink cartridge according to claim 1, wherein said terminal for electrically connecting to at least two of the contact members includes a first terminal region and a second terminal region in electrical communication with the first terminal region.

7. The ink cartridge according to claim 1, further comprising a substrate on which said semiconductor storage device is disposed on one surface thereof and said plurality of terminals are arranged on an other surface thereof.

8. The ink cartridge according to claim 1, further comprising a substrate on which said semiconductor storage device is disposed on a surface thereof, and said plurality of terminals also are arranged on the surface of said substrate.

9. The ink cartridge according to claim 1, wherein said semiconductor storage device is covered with an ink-resistant material.

10. The ink cartridge according to claim 1, wherein said plurality of terminals are grouped into at least a first group and a second group.

11. The ink cartridge according to claim 1, wherein said terminal which contacts to at least two contact members of the printing apparatus is a detection terminal which represents an existence of the ink cartridge mounted on the printing apparatus.

12. The ink cartridge according to claim 11, wherein said terminal which contacts to at least two contact members of the printing apparatus is located at substantially a center of the ink cartridge in the widthwise direction thereof.

13. The ink cartridge according to claim 11, wherein, viewing the ink cartridge in a direction perpendicular to a plane of said terminal which contacts to at least two contact members of the printing apparatus, said terminal which contacts to at least two contact members of the printing apparatus is intersected by a plane passing through a centerline of the ink supply port.

14. The ink cartridge according to claim 11, wherein said terminal which contacts to at least two contact members of the printing apparatus has an area larger than that of the other terminal.

15. The ink cartridge according to claim 11, wherein said terminal which contacts to at least two contact members of the printing apparatus is a ground electrode.

16. The ink cartridge according to claim 1, wherein said plurality of terminals come into engagement with an external control device at a time interval when the ink cartridge is mounted on the printing apparatus.

17. The ink cartridge according to claim 10, wherein said first group and said second group of terminals are arranged at an interval in a direction in which the ink cartridge is mounted on the printing apparatus.

18. The ink cartridge according to claim 10, wherein said first group and said second group of terminals have different heights with respect to a direction in which the ink cartridge is mounted on the printing apparatus.

19. The ink cartridge according to claim 1, wherein said terminals comprise six terminals each having a different function.

20. The ink cartridge according to claim 10, further comprising a conducting member which connects said first group to said second group of terminals when ink adheres across the two groups of terminals.

21. The ink cartridge according to claim 1, wherein at least one of said plurality of terminals is vertically rectangular in a direction in which the ink cartridge is mounted on the printing apparatus.

22. The ink cartridge according to claim 1, wherein one of the terminals is used for checking a content of said semiconductor storage device.

23. The ink cartridge according to claim 7, wherein said plurality of terminals are separated from an edge of said substrate.

24. The ink cartridge according to claim 8, wherein said plurality of terminals are separated from an edge of said substrate.

25. The ink cartridge according to claim 1, wherein said plurality of terminals are separated from a position where a contact member of the printing apparatus first comes into abutment when the ink cartridge is mounted on the printing apparatus.

26. The ink cartridge according to claim 1, wherein at least one of said terminals physically contacts a contact member of the printing apparatus.

27. The ink cartridge according to claim 1, wherein, viewing the ink cartridge in a direction perpendicular to a plane of the terminals, the terminals are symmetrically disposed about a centerline of the ink supply port.

28. The ink cartridge according to claim 1, wherein at least some of the terminals are symmetrically disposed about a centerline of the ink supply port.

29. The ink cartridge according to claim 1, wherein said semiconductor storage device is detachably mounted on said housing.

30. The ink cartridge according to claim 1, wherein said semiconductor storage device is mounted on said housing by a spring and a mounting plate.