Envelope construction is critical. Envelope fold lines can vary considerably, not only between
manufacturers, but also within a box from the same manufacturer. Successful printing on
envelopes depends on the quality of the envelopes. When selecting envelopes, consider the
Weight: The weight of the envelope paper should not exceed 105 g/m
jamming might result.
Construction: Prior to printing, envelopes should lie flat with less than 6 mm (0.25 inch) curl
and should not contain air. Envelopes that trap air may cause problems.
Condition: Make sure that the envelopes are not wrinkled, nicked, or otherwise damaged.
Sizes: From 90 x 160 mm (3.5 x 6.3 inches) to 178 x 254 mm (7 x 10 inches).