How to seal envelopes on the DM800, DM900 and more

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Products affected:  DM800™, DM800i™, DM825™, DM875™, DM900™, DM925™
Follow these steps to seal envelopes:
  1. Place the stack of envelopes on the feed deck
    • Make sure the open flaps are in the slot
    • Shingle the envelopes
Note: DM900 series:  if AutoStart is enabled, select all options before you place envelopes on the feed deck.
  1. Move the side guide close to the edge of the envelopes, leaving about 1/16 inch clearance  (DM900 series: The side guide is optional and not required)
  2. Position the backstop:
    • Up for letter size
    • Down for larger size
  3. Move the thickness adjustment knob to accommodate the envelope thickness:
    • Setting 1 is for thick envelopes
    • Setting 3 is good for most standard business envelopes
  4. Move the seal lever to the right to activate sealing
Seal Lever

UPDATED: April 08, 2021