A semi-active retard feeder employs a hysteresis clutch to provide the resisting torque to a retard roll. A low cost Hall Effect sensor is added to the clutch assembly to provide a feedback signal during the feeding cycle in order to detect the onset of degraded feeding performance. This signal can be used to instruct a user to order and replace the retard roll.

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> Fluid ejector including a drop size symbol, a method of disposing a drop size symbol in a fluid ejector, and an image forming device including a marking fluid ejector with a drop size symbol

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