Press and hold down the FEED button (located on top of the printer).
While still holding the FEED button, turn the printer back ON.
Release the FEED button when the status light starts flashing red.
The printer will calibrate (it usually flashes red several times during the process).
This matches what you wrote. The printer is entering media sensor calibration mode, which helps it properly detect gaps between labels or black marks on continuous media.
Important Notes:
Timing matters: You must release the FEED button while the light is flashing red. If you release it too early or too late, calibration may not start.
After releasing the button, do not press anything — let the printer finish calibrating on its own.
Once calibration is complete, the printer should return to a solid green or blue light (depending on the model variant).
When Should You Calibrate?
You should calibrate the TSC Alpha 30 when:
You're getting "Paper out" or "Media not found" errors even though media is loaded.
Labels are not feeding correctly or are skipping.
You changed to a different label size or type.
Print quality is inconsistent (especially with gap or black mark media).
Press and hold down the FEED button (located on top of the printer).
While still holding the FEED button, turn the printer back ON.
Release the FEED button when the status light starts flashing red.
The printer will calibrate (it usually flashes red several times during the process).
This matches what you wrote. The printer is entering media sensor calibration mode, which helps it properly detect gaps between labels or black marks on continuous media.
Important Notes:
Timing matters: You must release the FEED button while the light is flashing red. If you release it too early or too late, calibration may not start.
After releasing the button, do not press anything — let the printer finish calibrating on its own.
Once calibration is complete, the printer should return to a solid green or blue light (depending on the model variant).
When Should You Calibrate?
You should calibrate the TSC Alpha 30 when:
You're getting "Paper out" or "Media not found" errors even though media is loaded.
Labels are not feeding correctly or are skipping.
You changed to a different label size or type.
Print quality is inconsistent (especially with gap or black mark media).
