
Zebra GK420t User Guide COBISS System Management
8/18 © IZUM, 18. 3. 2013, VIF-NA-20-EN, V1.0
Labels or ribbon cartridge ran out.
The printerhead is overheated.
Flash memory is not programmed, the
printer requires service.
Flashing twice red and
then once green
The printhead or motor has a failure, the
printer requires service.
Table 1: Status light
3 Installing driver
If the original or the latest version of the driver for Zebra GK420t is not installed on your local
computer, which is connected to the printer, install the driver or upgrade it. Drivers are available
on Zebra’s official web page
http://www.zebra.com/id/zebra/na/en/index/drivers_downloads.html or on the user’s CD
supplied with your printer.
When the downloading web page opens, select GK420t Desktop Printer from the Printer Support
drop-down list (see Figure 14).
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