Xerox 6120 用户手册

Take off the top and bottom sheets of a ream of paper. Holding a stack of 
approximately 200 sheets at a time, fan the stack to prevent static buildup 
before inserting it in a tray.

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Although this printer was designed for printing on a wide range of media 
types, it is not intended to print exclusively on a single media type except 
plain paper. Continuous printing on media other than plain paper (such as 
envelopes, labels, thick stock, or transparencies) may adversely affect print 
quality or reduce engine life.

When refilling media, first remove any media remaining in the tray. Stack it 
with the new media, even the edges, then reload it. 
Do not mix media of different types and sizes, as this will cause 
media misfeeds.