Zebra Technologies Corporation MD-QL3021 Benutzerhandbuch
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QL 420 User’s Guide
IR Communications
Printers equipped for infrared (IR) communications are identi-
fied by a small “IR” logo on the unit’s label. IR allows wireless
communications between the printer and the host terminal. IR
units can also communicate with a cable as detailed above, how-
ever, IR functions are disabled when the cable is plugged in. QL
420 units with the IR option can be configured to conform to the
standard IrDA communications protocol
communications between the printer and the host terminal. IR
units can also communicate with a cable as detailed above, how-
ever, IR functions are disabled when the cable is plugged in. QL
420 units with the IR option can be configured to conform to the
standard IrDA communications protocol
Linking a Printer to an IrDA Host
IrDA compliant terminals will automatically initiate communica-
tions to the printer. First ensure that there is a direct line of sight
between the printer and the terminal that will be sending data.
The IR window on the front of the QL 420 must face the corre-
sponding window on the terminal to properly send and receive
signals. An IrDA compliant terminal will seek out any linkable de-
vices and establish communications between them, even turning
the printer on if necessary.
between the printer and the terminal that will be sending data.
The IR window on the front of the QL 420 must face the corre-
sponding window on the terminal to properly send and receive
signals. An IrDA compliant terminal will seek out any linkable de-
vices and establish communications between them, even turning
the printer on if necessary.
F
IGURE
13: IR C
OMMUNICATIONS
Area of IR Window
1M (39”)