Sealing envelopes when you print postage on the SendPro CX Series

You can seal envelopes and print postage at the same time with your SendPro CX Series.

Products affected: SendPro® CX 100, SendPro® CX 200, SendPro® CX 300 and SendPro® CX 500

You can seal envelopes and print postage at the same time with your SendPro CX Series.

  1. Check the level of sealing solution in the moistener tank. Add more if required.
  2. Tap Print Postage on the Home screen.
  3. Tap Account and select an account if accounting is enabled on your device.
  4. Tap Weight.
    Weight button
  5. Tap Scale.
  6. Place the envelope on the scale. Tap Apply You must do this before the next step or else Apply remains inactive.
  7. Tap Class and select the class of mail you want and tap Apply.
  8. Tap Graphic and select a graphic, if necessary.
  9. Tap Apply to continue.
  10. Slide the envelope flap under the edge of the feed deck so the moistener can wet the flap.
    Envelope flap fed underneath the feed deck
    Envelope feeding through the device
  11. Insert the envelope into the device. The device prints the postage.

Important: If the moistener tank is full and your envelopes do not seal correctly, clean or replace the moistener brush and wick.

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UPDATED: October 06, 2026