Sheet processing systems and methods

A system for processing sheets prior to mailing, comprising:

• a host computer having a circuit coupled to a sheet processing unit, the sheet processing unit comprising:
• a receiver adapted to receive first and second continuous form sheets;
• first, second, third and fourth readers, the first reader adapted to read a first identifier from the first continuous form sheet, the second reader adapted to read a second identifier from the second continuous form sheet, the third reader adapted to read a third identifier from the first continuous form sheet, and a fourth reader adapted to read a fourth identifier from the second continuous form sheet;
• a first separator adapted to separate a received portion of the first and second continuous form sheets from a next portion of the first and second continuous form sheets;
• and
• wherein the circuit is adapted to receive input from the first, second, third and fourth readers related to at least a portion of the first, second, third and fourth identifiers, and to compare the received input to determine if the portion of the first and second identifiers match and the portion of the third and fourth identifiers match.

A method of processing sheets prior to mailing, the method comprising:

• receiving first and second sheets with a receiver, the first sheet originating from a stack of first sheets and the second sheet originating from a stack of second sheets;
• reading a first identifier on the first sheet with a first read head;
• reading a second identifier on the second sheet with a second read head;
• reading a third identifier on the first sheet with a third read head;
• reading a fourth identifier on the second sheet with a fourth read head;
• comparing the first and second identifiers and the third and fourth identifiers to determine whether a match exists;
• and
• signaling an error if the first and second identifiers or the third and fourth identifiers do not match.