User's Manual

QL 420 User’s Guide 45
Specifications
NOTE.- Printer specifications are subject to change without notice.
Printing Specifications
Print Density 203 dots/inch (8 dots/mm)
Print Width Up to 4.09“ (103.8 mm)
Print Speed 3” per second (76.2 mm per
second)
Print Head Life, 1,964,160” (50 Km) nominal
calculated
Distance from .571” (14.5 mm)
Print Element 116 dots
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Memory/Communications Specifications
Flash Memory 1 MB flash (standard)
SRAM Memory 1MB SRAM (standard)
Standard RS-232 serial port (8 Pin circular DIN connector)
Communications Configurable Baud rate (from 9600 to 57.6 Kbps),
parity and data bits.
Software (X-ON/X-OFF) or hardware (DTR/STR)
communication handshake protocols.
Infrared wireless link (meets IrDA 1.1 communications
specifications) 2,400 to 115,200 Baud rate
Optional Wireless Bluetooth compatible 2.4 GHz SRRF link
Communications
Optional wireless LAN capabilities comply with 802.11
and 802.11b protocols