Brother DCP-J774DW Online User's Manual page 43

When using envelopes, load the envelopes with the printing surface face up and the flap on the left as
shown in the illustration.
See Related Information.
IMPORTANT
• DO NOT load more than one sheet of paper in the manual feed slot at any time. Doing this may cause
a paper jam. When printing multiple pages, do not feed the next sheet of paper until the LCD displays
a message instructing you to feed the next sheet.
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