MLOCR is a post-process (where you don't know the piece thickness and weight. You print labels without presorting).
The following notes are for the upcoming Manifest Mail Add-On Module for use with AccuZIP6.
Required fields for manifest:
piecelb: 6 characters wide | The weight is a fraction of a pound with leading zeros (ex. 007882 = .7882 lbs)
piecethick: 6 characters wide | Implied decimal is after second character (ex. 025000 = 2.5" thick)
Other, non-required fields:
piecelen 7 characters (implied decimal after 3rd digit)
piecehigh 6 characters
Piece size chosen from Presort Setup window Size pull down menu:
Manifest Parcel, Letter, or Flat:

Prior to Presorting, add a keyline field to your presortout.dbf file, as you'll need to print the keyline field on your mailpiece. Here are the instructions to add the keyline field to the presortout.dbf file (which adds the keyline field to your presort output file):
In AccuZIP6, pull down File to Open Database.
Open the C:\Program Files\AccuZIP6 5.0\iPresort\Templates
Open the presortout.dbf
Pull down the Edit menu to Fields.
Add a field named keyline
Make it a Character type field with a width of 30.
Click OK, then click Yes.
Close the database.
Required Reports:
Mailing Statement
CASS Report
Qualification Report
USPS Manifest Listing (manifest itemized report)
USPS Manifest Summary Report
Each of the above reports are created by the AccuZIP6 Presort.