9-11Troubleshooting9Repeated paper jams occur.Q Is the proper paper loaded?A Check that the size, thickness and type of the paper you are using. (See "Print MediaRequirements," on p. 2-1.)Q Is the proper paper loaded correctly?A Be sure to fan the paper stack before loading it in the cassette. This keeps the sheets of paper fromsticking together.Q Is the output tray free of obstructions?A Do not place the delivered paper back on the output tray. (See "Face Down Paper Output Area," onp. 2-11.)A Do not place objects other than paper on the output tray. (See "Face Down Paper Output Area," on p.2-11.)Q Is the machine installed in a proper location?A Check that the machine is installed in the proper location. (For information about specifications of themachine, see "Specifications," on p. 11-1. For safety warnings and cautions, see Chapter 1, "SafetyInstructions," in the Quick Reference Guide.)Envelopes do not feed correctly.Q Are the envelopes loaded correctly?A Make sure the envelopes are loaded correctly. (See "Loading an Envelope in the Multi-PurposeFeeder," on p. 2-7.) Load an envelope one by one in the multi-purpose feeder.Q Is the proper envelope loaded?A Load the recommended envelopes (COM10, MONARCH, DL, or ISO-C5) in the multi-purposefeeder. (See "Loading an Envelope in the Multi-Purpose Feeder," on p. 2-7.)