Brother HL-3170CDW - Manual (Page 11)

Printing Methods
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Envelopes
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Most envelopes can be used with your machine. However, some envelopes may have feed and print-quality
problems because of the way they have been made. Envelopes should have edges with straight,
well-creased folds. Envelopes should lie flat and not be of baggy or flimsy construction. Use only quality
envelopes from a supplier who understands that you will be using the envelopes in a laser machine.
We recommend that you print a test envelope to make sure the print results are what you want.
Types of envelopes to avoid
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IMPORTANT
DO NOT use envelopes:
• that are damaged, curled, wrinkled or an unusual shape
• that are extremely shiny or textured
• with clasps, staples, snaps or tie strings
• with self-adhesive closures
• that are of a baggy construction
• that are not sharply creased
• that are embossed (have raised writing on them)
• that were previously printed by a laser/LED printer
• that are pre-printed on the inside
• that cannot be arranged neatly when stacked
• that are made of paper that weighs more than the paper weight specifications for the machine
• with edges that are not straight or consistently square
• with windows, holes, cut-outs or perforations
• with glue on surface as shown in figure below
• with double flaps as shown in figure below
• with sealing flaps that are not folded down when purchased