Solution for Chromebooks Unable to Print via Flashlabel Plugin
Your printer must be in ChromeOS mode to work with your Chromebook. Please follow these steps:
Step 1: Check printer mode:
Print the self-test page:
1. Ensure the printer is powered on and label paper is loaded (matching the correct paper type).
2. Press and hold the Feeder button for about 5 seconds until you hear two beeps, then release it immediately.
Locate “U-Disk Mode” on the printed test page:
“OFF” = Correct mode (Enable ChromeOS mode).
“ON” = Error mode → Proceed to step two.
Step 2: Switch to ChromeOS mode
(Required if U-Disk mode is “ON”)
1. Ensure the printer is:
Powered on
Loaded with the correct label paper
Press and hold the function key (top button) for approximately 9 seconds.
Release immediately after hearing three beeps.
Step 3: Configure the Flashlabel plugin
1. Install/reinstall the Flashlabel plugin
2. Key points:
If you previously added a printer in a non-ChromeOS mode, remove it and then add it again after switching modes.
Do not close the interface shown in the screenshot below (the interface after clicking Add) — closing it will cause printing to fail.

Still not working?
1. Restart your Chromebook and printer.
2. Ensure the USB cable is securely connected.
3. Update ChromeOS: Settings → About ChromeOS → Check for updates
Note: Before printing, please make sure “U-Disk Mode: Off” is enabled.
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