Pitney Bowes DI425 FastPac Inserting Systems - Manual (Page 81)

Appendix A —Glossary
SV61656 Rev. A A-3
Term Definitions
DD An abbreviation for Double Detect.
Depth Clearance
(Envelope)
The required clearance between the depth of a
mailing envelope and the depth of its contents (the
assembled collation). Envelope depth is measured
from the flap fold to the bottom of the envelope. If
depth clearance is not adequate, the contents of
the envelope will extend beyond the envelope flap
fold, making the envelope difficult if not impossible
to close and seal.
Document One or more sheets assembled in a defined order
intended for a single addressee. A three-page
invoice where all the sheets come from the same
tray is a document; a two-page letter consisting of
pre-printed sheets, placed in separate trays and
collated by the inserter, is also a document.
Default An “as delivered” machine setting that stays in
effect until changed by an operator or service per-
sonnel. Synonymous with “normal setting,” “fac-
tory setting,” and “standard setting.” The normal
state of a machine or software option.
Double Detect The process of sensing the feed of two or more
sheets when only one should feed.
Double Fold A fold style in which a sheet is folded in half, and
in half again.
Downstream Further along in the direction of feed. Example:
A sealer is typically downstream from sheet and
envelope feeders.
Drop Stacker A type of stacker that uses gravity to stack fin-
ished mail pieces in an orderly fashion.
Duplex Printing Printing on both sides of a sheet of paper.
EMI/EMC Electromagnetic Interference / Electromagnetic
Compliance.
End Clearance (En-
velope)
For mechanical inserting, the required difference
in width between the envelope and its contents.
The clearance is necessary for reliable insertion.
An end clearance specification must also account
for the thickness of the inserted pack; the greater
the thickness, the greater the required end clear-
ance.