Mailing machine transport system with integral scale for weighing mail pieces where the contact force on the take away rollers is reduced to eliminate oscillations of the weighing platform

A mail processing system comprising:

• a transport path for transporting a mail piece through the mail processing system;
• a weighing module for weighing the mail piece being transported along the transport path, the weighing module including a load cell for determining a weight of the mail piece;
• a weighing platform supported by the load cell, the weighing platform for supporting the mail piece being weighed by the load cell;
• at least one first nip located along the weighing platform, each of the at least one first nip formed by a first roller mounted on a respective pivot arm having a first biasing mechanism to bias the pivot arm toward the weighing platform such that the first rollers apply force to the mail piece on the weighing platform to maintain the mail piece in contact with a driving device that moves the mail piece along the transport path through the weighing module, the first biasing mechanism having a first force;
• a take-away nip located in a downstream direction from the at least one first nip along the weighing platform to feed the mail piece from the weighing module to a subsequent module along the transport path of the mail processing system, the take-away nip being formed by a take-away roller and a drive roller mounted in the weighing platform, the take-away roller being mounted on a take-away pivot arm having a second biasing mechanism to bias the pivot arm toward the weighing platform such the take-away roller applies force to the mail piece to maintain the mail piece in contact with the drive roller, the second biasing mechanism having a second force that is less than the first force.