2 Paper and Other Media22Envelope TrayThe Envelope Tray allows you to stack up to 43 mm of envelopes.NOTE: Insert the Envelope Tray in the slot for Tray 1 only. Inserting the Envelope Trayin any other slot will damage it.1. Pull out the Envelope Tray.2. Load the envelopes in theEnvelope Tray with the side tobe printed face up and the edgewith the flap against the leftedge of the tray.3. Adjust the paper guides to thesize of the envelopes.Auto Tray SwitchingThe machine automatically switches from one tray to another under the followingconditions.• When an active tray runs out of paper during printing.• When the paper size of the selected tray differs from that detected upon documentscanning.• When the selected tray is open upon paper feeding.• When the selected tray malfunctions upon paper feeding.NOTE: The bypass tray is not subject to Auto Tray Switching.NOTE: The paper tray and paper type priority settings can be programmed in theSystem Administration mode. For more information, refer toPaper Tray Priority in theSetups chapter on page 71 andPaper Size Settings in the Setups chapter onpage 78.When not in use, the paper trays can be opened and loaded with paper while themachine is running. However, do not open an active paper tray. This will cause themachine to stop the job that is being processed.