Patent ID: 8496327

Claim:
A reservoir for holding a supply of release agent for delivery to an applicator of a drum maintenance unit of an imaging device, the reservoir including: a bottle configured to hold a predetermined quantity of a release agent in an interior of the bottle, the bottle including a single opening at one end of the bottle; an end cap mounted over the single opening in the bottle, the end cap including a first opening configured to fluidly communicate with the interior of the bottle through the single opening in the one end of the bottle to enable release agent to flow out of the interior of the bottle and through the first opening, and a second opening configured to fluidly communicate with the interior of the bottle through the single opening in the one end of the bottle to enable release agent to flow through the second opening into the interior of the bottle; and a float level sensor operatively connected to the end cap to extend into the bottle, the float level sensor including: a proboscis extending from an interior of the end cap toward the interior of the bottle; a switch positioned in the proboscis; a buoyant member being configured to float in the release agent in the interior of the bottle and to move between a first position and a second position within the interior of the bottle; a magnet affixed to the buoyant member, the magnet being configured to place the switch in a closed circuit position in response to the buoyant member being in the first position and the switch being configured to be in an open circuit position in response to the buoyant member being in the second position; and a pivot arm extending from the buoyant member that is pivotably attached to the proboscis to enable the buoyant member to pivot within the interior of the bottle with reference to the proboscis.