1. GK420d Desktop Printer User Guide
  2. Getting Started
  3. Connecting your Printer to a Device
  4. Interface Cable Requirements
  5. Serial Communications
  6. Resetting the Default Serial Port Parameters
  • GK420d Desktop Printer User Guide
Resetting the Default Serial Port Parameters

Resetting the Default Serial Port Parameters

Do the following to reset the communications parameters on the printer to the factory defaults (serial communication settings are:
9600
 baud,
8
-bit word length,
NO
 parity,
1
 stop bit, and
DTR/XON/XOFF
 data flow control).
  1. Press and hold the
    Feed
     button until the green status LED flashes once, after a moment flashes twice, and then waits again before flashing three times. Release immediately.
  2. While the status LED rapidly flashes amber and green, press the
    Feed
     button.
    Serial communications between the printer and the host computer can be set by the ZPL
    ^SC
     command or the EPL
    Y
     command.
    Early models of Zebra printers running the EPL programming language had
    9600
     baud,
    NO
     parity,
    8
     data bits,
    1
     stop bit, and a HARDWARE and SOFTWARE (merged) data control (essentially
    DTR/Xon/Xoff
    ) as the default serial port settings. The Windows operating system Flow Control setting was
    Hardware
     for most applications.
    1
    Serial cable (tighten the screws after plugging in the cable)