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GT-782
7. Troubleshooting
79
７-１. Solving Printer Problems
Use the table below to help solve printer problems.
Problem Cause Solution
Cannot send print data from the
PC.
You have selected the wrong
printer.
Confirm the selected printer, and select the correct
one.
USB cable not connected Disconnect and re-connect the USB 2.0 cable
Your PC and OS do not satisfy
the requirements of GT-782.
See “1-3-3. Software Information" and check your PC
properties.
Using an USB cable that does
not meet the requirement.
Use the USB cable that meets the requirement.
See “1-3-4. Other requirements".
The USB hub is not working
properly.
Connect GT-782 directly to PC with USB. USB hub is
not operationally approved.
Noise is disturbing the
communication between GT-782
and the PC.
Disconnect the USB 2.0 cable once, and wait for 5
seconds and connect it again.
If this does not solve the problem, turn off GT-782,
wait for 5 seconds and restart.
The PC is not working properly. Restart the PC.
Try another inlet of USB port.
Added USB card in PC and
GT-782 do not match.
Connect GT-782 with the original USB port in PC
Other USB device is connected
with your PC.
Remove the other USB device and restart your PC,
and check if GT-782 works properly.
Something is wrong with the
USB cable.
Try other or shorter USB 2.0 cables.
Display turned OFF but Error
LED ON
Auto Power-off worked. Turn OFF and ON the power switch.
Pressing the Print Button does
not start printing.
GT-782 is indicating an error Solve the cause of the error, and try again.
"Ready" or "Print Ready" is not
indicated on the Display, the
other Control Panel is in the
menu or operating.
Confirm the status of the other Control Panel. Wait till
the operation is over.
Auto Head Cleaning is in
process.
Wait until the Head Cleaning finishes.
The room temperature does not
meet the requirements.
Adjust the room temperature.
See “1-3-1 Environment”.
The printer has not received/
read a data, or is now receiving/
reading the data.
Machine will not print until print job has been received.
The Print Heads are overheated
and the message "Fail: Head
Temp (****)" appears.
Wait until the heads cool down.
GT-782 does not turn on. There is no power. Check the power cable connections.
The Front Cover is open or not
closed properly.
Close the Front Cover properly.