Problem/Question
Communication errors occur during printing tasks.
Applicable To
CG408TT, CG412TT, CG408DT, CG412DT.
Resolution/Answer
1. Ensure that all cables are securely connected.
2. Perform factory test print mode.
This mode produces test labels for diagnostic purposes.
Preparation:
Make sure the media or ribbon (if required) are properly loaded in the printer.
Notes:
• If you missed the chance to release the FEED/LINE button in step 2 above, just keep holding the FEED/
LINE button and wait for the next cycle.
• If you released the FEED/LINE button at the wrong ON LINE (POWER) or ERROR indicators, just turn off
the power and restart the procedure.
• The printer will continuously print the Factory test labels until the FEED/LINE button is pressed. The printing is paused and will resume printing if the FEED/LINE button is press again.
To terminate the Factory Test Print mode
First, ensure that you have pressed the FEED/LINE button to pause the test printing, then press POWER to
turn off the printer
03-80140-EN