Printing-fluid container

1. A printing-fluid container, comprising:

an off-axis printing-fluid reservoir configured to hold printing fluid;

a printing-fluid interface configured to output printing fluid from the printing-fluid reservoir; and

an air-interface configured to regulate pressure within the printing-fluid reservoir,

wherein the printing-fluid reservoir includes a leading surface configured for lateral insertion into a printing system, and wherein entry points to the printing-fluid interface and the air-interface are positioned substantially coplanar with the leading surface,

wherein the leading surface includes an alignment interface to position the printing-fluid container in a desired location with a desired orientation, a keying interface to position the printing-fluid container in a proper printing-fluid container bay, and an electrical interface to electrically communicate with the printing-fluid container,

wherein the printing-fluid interface, the alignment interface, and the air-interface are aligned along a common vertical axis, and the electrical interface, the alignment interface, and the keying interface are aligned along a common horizontal axis.

2. The printing-fluid container of claim 1 , wherein the printing-fluid interface is configured to laterally input and output the printing fluid.

3. The printing-fluid container of claim 1 , wherein the air-interface is configured to laterally input and output the air.

4. The printing-fluid container of claim 1 , wherein the printing-fluid interface includes a ball and septum assembly.

5. The printing-fluid container of claim 1 , wherein the air-interface includes a ball and septum assembly.

6. The printing-fluid container of claim 1 , wherein the printing-fluid interface is communicated with the printing-fluid reservoir to provide bi-directional flow of printing fluid, air, and a combination of printing fluid and air into and out of the printing-fluid reservoir, and the air-interface is communicated with the printing-fluid reservoir to provide bi-directional flow of printing fluid, air, and a combination of printing fluid and air into and out of the printing-fluid reservoir.

7. The printing-fluid container of claim 1 , wherein the printing-fluid reservoir includes a well to which the printing fluid drains, wherein a surface area of printing fluid within the well is less than a surface area of additional printing fluid within the printing-fluid reservoir, wherein the printing-fluid interface communicates with the well and the air-interface is positioned gravitationally above the printing-fluid interface.

8. A printing-fluid container, comprising:

an off-axis printing-fluid reservoir configured to hold a free volume of printing fluid and air mixed together therein, the printing-fluid reservoir having a substantially planar leading surface;

a first fluidic interface on the leading surface and extending into the printing-fluid reservoir;

a second fluidic interface on the leading surface and extending into the printing-fluid reservoir;

an alignment interface on the leading surface to position the printing-fluid container in a desired location with a desired orientation;

a keying interface on the leading surface to position the printing-fluid container in a proper printing-fluid container bay; and

an electrical interface on the leading surface to electrically communicate with the printing-fluid container,

wherein the leading surface of the printing-fluid reservoir is configured for lateral insertion into a printing system, and wherein entry points to the first fluidic interface and the second fluidic interface are positioned substantially coplanar with the leading surface,

wherein the first fluidic interface, the alignment interface, and the second fluidic interface are aligned along a common vertical axis, and wherein the electrical interface, the alignment interface, and the keying interface are aligned along a common horizontal axis.

9. The printing-fluid container of claim 8 , wherein one bi-directional connection is established with the first fluidic interface to provide bi-directional flow of printing fluid, air, and a combination of printing fluid and air into and out of the printing-fluid reservoir through the first fluidic interface, and one bi-directional connection is established with the second fluidic interface to provide bi-directional flow of printing fluid, air, and a combination of printing fluid and air into and out of the printing-fluid reservoir through the second fluidic interface.

10. The printing-fluid container of claim 8 , wherein the first fluidic interface and the second fluidic interface are both configured to laterally input and output printing fluid, air, and a combination of printing fluid and air into and out of the printing-fluid reservoir.

11. The printing-fluid container of claim 8 , wherein the first fluidic interface includes a ball and septum assembly.

12. The printing-fluid container of claim 8 , wherein the second fluidic interface includes a ball and septum assembly.

13. The printing-fluid container of claim 8 , wherein the first fluidic interface and the second fluidic interface are both configured to provide bi-directional flow while the printing-fluid container is seated in a printing-fluid container bay of the printing system.

14. The printing-fluid container of claim 8 , wherein the printing-fluid reservoir includes a well to which the printing fluid drains, wherein a surface area of printing fluid within the well is less than a surface area of additional printing fluid within the printing-fluid reservoir, wherein the first fluidic interface communicates with the well and the second fluidic interface is positioned gravitationally above the first fluidic interface.