Patent ID: 11872822
Assignee: SEIKO EPSON CORPORATION
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 26:
27. A liquid accommodation container that is configured to be mounted at an accommodation section of a printing apparatus, the printing apparatus including a printing head, the accommodation section including (i) a liquid introduction portion that introduces a liquid to the printing head, and (ii) a plurality of apparatus-side terminals, the liquid accommodation container comprising:
a liquid accommodation body configured to accommodate a liquid;
a liquid supply portion that includes a liquid supply port that is configured to supply a liquid from the liquid accommodation body to the liquid introduction port when the liquid accommodation container is mounted at the accommodation section;
a device; and
a plurality of terminals that are each provided at a surface of liquid accommodation body and electrically coupled to the device, each of the plurality of terminals including a contact portion, wherein the plurality of terminals includes:
a data terminal with a data contact portion that is arranged to contact a corresponding apparatus-side data terminal among the plurality of apparatus-side terminals when the liquid accommodation container is mounted at the accommodation section,
a clock terminal with a clock contact portion that is arranged to contact a corresponding apparatus-side clock terminal among the plurality of apparatus-side terminals when the liquid accommodation container is mounted at the accommodation section,
a reset terminal with a reset contact portion that is arranged to contact a corresponding apparatus-side reset terminal among the plurality of apparatus-side terminals when the liquid accommodation container is mounted at the accommodation section,
a power-source terminal with a power-source contact portion that is arranged to contact a corresponding apparatus-side power-source terminal among the plurality of apparatus-side terminals when the liquid accommodation container is mounted at the accommodation section, and
a ground terminal with a ground contact portion that is arranged to contact a corresponding apparatus-side ground terminal among the plurality of apparatus-side terminals when the liquid accommodation container is mounted at the accommodation section,
wherein the data terminal is configured such that the data terminal can be used to detect whether or not the data terminal has a short circuit with at least one of the clock terminal, the reset terminal, and the power-source terminal, and
wherein in a plan view of the surface,
when (i) two orthogonal straight lines are set as a first virtual line and a second virtual line, and (ii) a position of each contact portion on the surface is projected in a direction perpendicular to the second virtual line onto the second virtual line as a projection position, including projection positions of the data contact portion, the clock contact portion, the reset contact portion, the power-source contact portion, and the ground contact portion,
(a) the projection positions of all contact portions on the surface are different from each other, and the first virtual line passes through a middle between two projection positions that are farthest from each other among the projection positions of all of the contact portions,
(b) the first virtual line defines a first region of the surface on one side of the first virtual line and a second region of the surface on the other side of the first virtual line, and some contact portions are arranged in the first region including at least the data contact portion, the clock contact portion, the reset contact portion, and the power-source contact portion, and remaining contact portions are arranged in the second region including at least the ground contact portion, and
(c) the some contact portions are arranged in a first pattern in the first region and the remaining contact portions are arranged in a second pattern in the second region, and the first pattern and the second pattern are asymmetrical to each other with respect to the first virtual line.