The Avery Weigh-Tronix Portable Printer ZG110 was an option and Used with the OTC Monitor 4000E scanner to read out ODB 1 and 2 diagnostics codes.  Connects with an RS232 serial connection.  
Also included is the 12V to DC Power Supply. 

FEATURES

  • Compact size (4.1″ x 3.2″ x 6.2″)
  • RS-232 serial as standard
  • 24 column printing capacity
  • Uses standard 2¼” adding machine paper
  • Low paper sensor
  • Easily replaceable ink cartridge
  • comes with the AC & DC power supply. 
  • 1200 or 9600 baud rate versions