1. GK420d Desktop Printer User Guide
  2. Print Operations
  3. Standalone Printing
  • GK420d Desktop Printer User Guide
Standalone Printing

Standalone Printing

Your printer can be configured to work without being attached to a computer.
The printer has the ability to automatically run a single label form. One or more downloaded label forms can be accessed and run with a terminal or wedge device or a Zebra KDU (keyboard display unit) to call a label form. These methods allow the developer to incorporate data input devices, such as scanners or weight scales, to the printer via the serial port.
Label formats can be developed and stored in the printer to support labels that have:
  • No data entry required and print when the
    Feed
     button is pressed.
  • No data entry required and print when a label is removed from the printer’s optional label dispenser.
  • One or more data variables to be entered via the terminal or wedge device. The label will print after the last variable data field has been input.
  • One or more label formats that are called by scanning bar codes containing programming to run a label form.
  • Label forms designed to work as a process chain with each label including a bar code containing the programming to run the next label in the process sequence.
Both printer programming languages support special label forms that will automatically run after a power cycle or reset. The ZPL looks for a file named
AUTOEXEC.ZPL
 and EPL looks for a label form named
AUTOFR
. If both files are loaded in the G-Series printer, then only the AUTOEXEC.ZPL will run. The EPL AUTOFR form runs until it is disabled. Both files must be deleted from the printer followed by a reset or a power cycle to completely remove the files.
The G-Series EPL
AUTOFR
 command can only be disabled with
NULL
 character (00 hex or ASCII 0). The G-Series printer will ignore the other character that normally disables the AUTOFFR form operation in most other EPL printers, the XOFF character (13 hex or ASCII 19).
The G-Series printer can source up to 750mA through the serial port’s 5-volt line; see Interface Wiring for more information on the printer’s serial port interface.