 As mail travels through the DPRCS, large items, such as packages and mail bundles, are removed from the stream.As the remaining mail enters the first machine for processing standard mail, the Advanced Facer-Canceler System (AFCS), pieces that passed through the DPRCS but do not conform to physical dimensions for processing in the AFCS (e.g., large envelopes or overstuffed standard envelopes) are automatically diverted from the stream.Mail removed from the DPRCS and AFCS is manually processed or sent to parcel sorting machines.