Dual RFID modules in an RFID printer/encoder/verification system

A radio frequency identification (RFID) printer device for electronically encoding and verifying radio frequency identification (RFID) labels, tags, or other construction media, comprising:

• a print head capable of printing on the RFID tags, the print head is a thermal print head that automatically detects dot density;
• and
• wherein each of the RFID tags comprises an RFID transponder;
• a first RFID reader/writer module that electronically encodes data to an RFID transponder when the RFID transponder reaches an encoding location;
• a second RFID reader/writer module that reads the RFID transponder and compares the read data with data provided by a printer controller;
• and
• a processor for communicating individually with the first and the second RFID reader/writer modules;
• and
• wherein the first and the second RFID reader/writer modules cooperate with each other such that the printer device can encode a first RFID tag and simultaneously or substantially simultaneously verify a second RFID tag;
• and
• wherein the RFID tags are arranged in a continuous web so that the RFID tags can be printed or encoded as part of a continuous process as the RFID tags are moving in the web.