SOLID INK STICK WITH REVERSIBLE KEYING AND INTERLOCKING FEATURES

摘要

An ink stick for use in an ink delivery system of a phase change ink imaging device comprises an ink stick body having first and second opposed end surfaces and first and second opposed lateral side surfaces. The ink sti ck body is rotationally symmetric about a vertical central axis of the ink stic k body. The ink stick body includes an interlocking face on the first end surface an d a complementarily shaped interlocking face on the second end surface. A key is on each of the first and second side surfaces. The keys of the first and second side surfaces are similarly shaped. The key on the first side surface and th e key on the second side surface are rotationally symmetrically positioned with respect to each other about the vertical central axis.