Pitney Bowes Epic, Manual

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Window Requirements
Open window envelopes are not supported. Patched window types cannot have any part of the window
above the "V" in the back panel of the envelope. In these envelopes, the window should be located .75"
(19 mm) minimum from side, top and bottom of the envelope.
Bottom window envelopes are becoming more prevalent due to current US security concerns. The
automated processing requirements for this type of envelope need to be researched.
The patch should be a minimum of .25" (6.4 mm) larger than the opening on all sides.
The glue line should be no more than .125" (3.2 mm) from the inside of the opening on all sides. All
window patches should be flat, ripple free and bonded within .0625" (1.6 mm) of the top edge of the patch
material and top edge of the window cut out(s). If the window patch area is 1/3 or more of the total area of
the envelope's front panel, the envelope must be tested.
For front / back double window envelopes, the window patches cannot be in opposite positions or the
photocells will see through the envelopes,
(see the example here) .
Specifications
Pitney Bowes Epic Select Operator Guide December, 2017 Page 260 of 288