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Make sure print media is not torn, folded, or wrinkled.
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Do not overfill the media cassette: it holds 250 sheets of paper,
50 transparencies, or label stock up to the upper-limit mark on the
cassette.
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Note: If the printer is operating in a low-humidity environment, we
recommend printing fewer than 20 consecutive transparencies to
prevent jamming.
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If you have problems with double feeding, remove the paper from
the cassette and fan the edges. The sheets may be sticking
together. (However, do not fan transparencies; this can create
electrostatic buildup that can cause jamming.)
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Store print media away from moisture and humidity. Moisture and
humidity may cause media to turn up at the edges or wrinkles to
occur. The recommended relative humidity during operation is
60%-70%.
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Load media printing side up, top edge first. The printing side of
media is indicated on the wrapping, so leave it in its wrapping
until you are ready to load it.
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Keep the paper-feed rollers and the manual-feed belts clean.
Dirty rollers and belts can draw media unevenly into the printer.
See "Cleaning the Rollers" in chapter 3, "Maintenance."
Preventing Envelope Jams
To prevent envelope jams
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Keep envelopes in their original box to protect them until they're
used. Don't use damaged envelopes.
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Store envelopes in a low-humidity environment.
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Use only the envelope types specified in "Print Media Types,
Weights, and Recommended Brands" on page 30. Don't use
envelopes with windows.
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If you're using the optional envelope cassette, use it in the stan-
dard cassette slot (not the optional feeder), and don't place more
than 30 envelopes in the cassette at once.
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