Zebra Technologies GC420d Benutzerhandbuch

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Feed Button Modes
70
P1052685-001
GC420d™ User Guide
5/23/2012
Feed Button Modes
Power Off Modes
With the printer power off, press and hold the Feed button while you turn on the power. 
Flash Sequence
Action
Amber - Red 
Flashing
Firmware Download Mode - The printer starts rapidly flashing red to denote entry into 
the Firmware Download mode. Releasing the Feed button here will start initializing the 
printer for download. The printer is ready to start downloading firmware when the status 
light begins to slowly flash between red and green. 
See Sending Files to the Printer
www.zebra.com
Amber
Normal Operations Mode - The printer continues into a normal printer initialization. 
Releasing the Feed button here will allow the printer to start normally without firmware 
download or operating in communications diagnostics mode.
Green
Communications Diagnostic (Dump) Mode - Release the Feed button immediately after 
the printer status light turns green. The printer will print ‘Now in DUMP’ at the top of the 
label and then advance to the next label.  After printing the first label, the printer will 
automatically enter into diagnostic mode in which the printer prints out a literal 
representation of all data subsequently received.  
To exit the diagnostic mode and resume printing, turn off and then turn on the printer. An 
alternate method for exiting the diagnostic mode is to press the Feed button as many times 
as it takes to clear the printer’s command buffer and print ‘Out of DUMP’ on the label.