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EN Envelope specifications 159
5
Envelope sizes
Envelopes to avoid
Do not use the following envelopes:
• with clasps, snaps, or tie strings
• with transparent windows, holes, perforations, or cutouts
• having an open flap with adhesive exposed
• having paper, inks, adhesives, or materials that discolor, melt,
offset, or release hazardous emissions when exposed to
175° to 230° C (347° to 446° F)
• having extremely smooth, shiny, rough, textured, or deeply
embossed surfaces
• damaged, wrinkled, or irregularly shaped
• constructed with encapsulating adhesives that do not require
moistening, but rely instead on pressure to seal them
Preventing jams caused by envelopes
When you are printing on envelopes, use these preventive measures to
avoid printer malfunctions.
• Carefully feed the envelopes into the printer.
• Be aware of the envelope’s construction.
Imperial (U.S.) system
Size U.S. Dimensions Metric Dimensions
Tray 1:
Minimum
Maximum
3 by 5 in
8.5 by 14 in
76 by 127 mm
216 by 356 mm
Optional envelope
feeder:
Minimum
Maximum
3.5 by 6.3 in
7 by 10 in
90 by 160 mm
178 by 254 mm