Pitney Bowes DM550 - Manual (Page 185)

SV61436 Rev. B A-7
DM500™ and DM550™ Digital Mailing System Operating Guide
Tyvek® A plastic material used for envelopes.
USPS The Unites States Postal Service.
WEIGH-ON-THE-WAY™ (WOW™) A mail weighing mode that weighs mixed mail as it passes
along the feed deck and applies the appropriate postage.
Wiper Blade Part of the printing assembly that wipes excess ink off the
printhead.
ZIP Code A ZIP Code is a numeric code used by the USPS to identify
general and specific geographic areas in the United States.
ZIP+4 Code A 9-digit numeric code incorporating the original 5-digit ZIP
Code, a hyphen, and 4 additional digits. The first 5 digits
identify the delivery office. The 4-digit add-on identifies
specific delivery segments.