Patent ID: 8777386

Claim:
A solid ink stick comprising: a solid ink body having a length, a width, a height, and two ends; a first surface having a shape of a polygon, each end edge of the polygon of the first surface including a first identifier and a second identifier, each of the first identifiers on the edges of the first surface being identical to one another and the first identifiers on opposite edges of the polygon being on opposite portions of the opposite edges, and each of the second identifiers on the edges of the first surface being identical to one another and the second identifiers on opposite edges of the polygon being on opposite portions of the opposite edges; a second surface having a shape that is the shape of the polygon of the first surface and is located on a side of the solid ink body that is opposite the first surface, each edge of the polygon of the second surface including the first identifier and the second identifier, each of the first identifiers on the edges of the second surface being identical to one another and the first identifiers on opposite edges of the polygon of the second surface being on opposite portions of the opposite edges of the polygon of the second surface and being on opposite portions of edges of the polygon of the first surface that are opposite the edges of the second surface on the solid ink body, and each of the second identifiers on the edges of the second surface being identical to one another and the second identifiers on opposite edges of the polygon of the second surface being on opposite portions of the opposite edges of the polygon of the second surface and being on opposite portions of edges of the polygon of the first surface that are opposite the edges of the second surface on the solid ink body.