Pitney Bowes DM475 Operator's Manual page 41

Processing Lettermail
Automatically Feeding of Envelopes (cont'd)
i
NOTE: For a proper seal, the envelope's minimum flap angle
must meet the following criteria:
• For envelopes with a flap length from 25 to 60mm (1 to 2.36
inches), the minimum flap angle is 18 degrees.
• For envelopes with a flap length greater than 60mm to the
maximum flap length for the particular model, the minimum
flap angle is 21 degrees.
SV62415 Rev. B
3 • Running Mail
3-11