Front Panel Password Protection for Link-OS™ Printers
Front Panel Password Protection
The latest release of Link-OS™ adds the ability to protect access to the Front Panel. This new feature requires entering a password before modifying a Front Panel item.
This capability is available to all Link-OS printers with a Front Panel, except for the standard QLn220, QLn320, ZQ510 and ZQ520 printers. To use these new front panel password features on your Link-OS printer, update the printer to one of the following Operating System builds (or later):
Printer Model Type |
Link-OS Build |
QLn Series |
V68.19.13Z or later |
ZT200 Series |
V72.19.13Z or later |
ZD500 Series |
V74.19.13Z or later |
ZT400 Series |
V75.19.13Z or later |
Printers that have this capability have a new item in the “Tools” menu – “Password Protect”, which provides the following three option levels of protection:
- ALL
o All Front Panel Items that can be modified are protected
- SELECTED
o Protects a pre-selected set of items on the Front Panel.
o The pre-selected set of protected items are listed in Appendix 1 in the linked Application Note below
o Which items are protected can be changed by modifying Front Panel WML script files
- NONE
o None of the Front Panel items are protected when this setting is selected.
Password Protection Commands
There are two Set-Get-Do (SGD) commands and one ZPL command that control the Front Panel password system.
- display.password.level
o This SGD sets the password protection level.
o Choices are “all”, “selected”, and “none”. (See above)
- The default value for QLn420 and the Healthcare models of QLn220 and QLn320 is “SELECTED”.
- The default value for ZT230, ZT410, ZT420, ZD500 and ZD500R is “NONE”.
- display.password.current
o Sets the current password.
o For security purposes, when retrieving this value via a getvar, only “*” is returned.
- ^KP
o This is the ZPL command that sets the password. (See the Zebra Programming Guide)
o ^KP and display.password.current are two ways of setting the same password.
Click to read the full Application Note on Front Panel Password Protection for Link-OS Printers
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Daniel Quagliana is the Global Developer Outreach Manager at Zebra. He works with Zebra’s ISV Partners and Developers to build awareness & educate on Zebra’s portfolio and tools to enable the creation of innovative Enterprise Visibility Solutions. Since the founding of Zebra’s ISV & Developer Program he has helped tens of thousands of developers around the world build thousands of industry leading applications. Previously Mr. Quagliana was a software engineer and the project lead, managing product development for Zebra’s strategic accounts. Prior to joining Zebra in 2007, Mr. Quagliana spent 5 years in the software development field. He received a B.S. degree in computer engineering from Northwestern University and is a credentialed Project Management Professional.