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Serial interface
USB interface
Specification Description
Standard Based on RS-423
Synchronization Synchronous
Bit rate Approximately 1.8 Mbps
Handshaking X-ON/X-OFF and DTR protocol
Word format Data bit: 8 bits
Parity bit: None
Start bit: 1 bit
Stop bit: 1 bit
Connector 8-pin mini-DIN
Recommended 
cable
ImageWriter II serial cable (preferably Belkin 
brand)
Specification Description
Standard Based on Universal Serial Bus Specifications 
Revision 1.0, Universal Serial Bus Device Class 
Definition for Printing Devices Version 1.0
Bit rate 12 Mbps (full speed device)
Data encoding NRZI
Adaptable 
connector
USB Series B
Recommended 
cable length
6.5 feet (2 meters) or less