Chapter 2 — Configuring the PB21 and PB31
50 PB21 and PB31 Mobile Receipt Printer User Guide
4 Type this command:
run “su -p pass admin”
5 Type this command:
run “dlk -z”
The printer indicates that it is “Upgrading.”
6 In the communications program window, click Transfer > Send
File. A dialog box appears.
7 In the protocol drop-down box, select Zmodem.
8 Browse to the firmware upgrade file (.bin) and select it.
Wait approximately 5 minutes for the firmware upgrade to finish.
When the upgrade is complete, the communications program
window displays the message “kernal flashing ok.” The printer
automatically reboots.
To upgrade the printer firmware using the communications program
window and ESC/P
1 Connect your printer to your PC using a serial cable. For help, see
“Connecting the Printer Through the Serial Port” on page 29.
2 Download the firmware upgrade file (.bin) to your PC:
a Go to www.intermec.com.
b Click Support > Downloads.
c Use the Product Category, Product Family, and Product
fields, to select the printer model.
d Click Submit. The available software appears on the page.
e Download the latest firmware version to your PC.
f Extract the .zip file to a folder on your PC.
3 Start a communications program, like HyperTerminal.
4 Reboot the printer.
5 Press Esc.
6 Type this command:
{SYS:USH}