Avoiding envelope sealing issues
Sealing issues can be caused by inadequate sealant in the moistener tank, not placing the envelope
correctly on the feed deck, or problems with the wick or brush in the moistener.
1. Check the level of sealant in the moistener tank and add more if required. Refer to Filling the
moistener tank.
2. When feeding an envelope be sure to slide the envelope flap under the edge of the feed deck.
Otherwise, the moistener cannot wet the flap.
3. If the moistener tank is full and your envelopes are still not sealing correctly, clean or replace the
moistener brush and wick. Refer to Cleaning the moistener brush and wick assembly.
8 • Mail Machine Maintenance
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