IBM 3000 manual Ordering and Replacing Supplies

7.Locate the Developer Mix Inlet (1), the Developer Drain Lever B (2), and the Developer Run Pushbutton A (3) in the developer area.

Important

a.Never open the developer drain unless the developer drain hose is inserted into an empty developer mix bottle.

b.After you have opened and closed the developer drain, you must replace the developer mix. Opening the drain resets the developer mix usage timer. Resetting the timer without changing the developer mix could result in severe print quality problems that are caused by the developer mix being used beyond its normal life.

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