Patent ID: 7931363

Claim:
A drum maintenance system for use in an imaging device, the system comprising: an applicator configured to apply a release agent to a surface of an intermediate transfer drum of an imaging device at a first flow rate; a reservoir spaced from the applicator, the reservoir including a supply of the release agent for the applicator; a trough positioned proximate the applicator and configured to receive release agent from the reservoir; a first fluid path fluidly coupling the reservoir to the trough for delivering release agent from the reservoir to the trough and the applicator; a sump positioned proximate the trough to receive release agent from the trough; a second fluid path fluidly coupling the sump to the reservoir for returning release agent from the sump back to the reservoir; a delivery pump configured to pump release agent from the reservoir through the first fluid path to the trough at a second flow rate; and a recirculation pump configured to pump release agent from the sump through the second fluid path to the reservoir at a third flow rate, the second flow rate being greater than the first flow rate, and the third flow rate being greater than the second flow rate.