4  Checking and Performing Printer Adjustments
52
CL4NX/CL6NX Service Manual
8 Press the   button to enter offline mode.
9 Remove the ribbon if you have loaded in 
the printer.
10
In offline mode, press the right soft button 
to feed the media.
Make sure that the printer shows a Ribbon End 
error message, and along with the buzzer sounds.
11
If no error occurs, check the connection of 
the ribbon sensor connector. 
If there is no problem, replace the sensor. Refer to 
Section 5.12 Replacing the Ribbon Sensor for 
details.
4.7
Checking the Head Open Error
1 Press the   power button on the 
operator panel for more than one second 
to power on the printer.
2 Open the top cover.
CAUTION
Open the top cover fully to prevent accidental drop of 
the cover.
3 When the printer is in online mode, push 
the head lock lever towards the rear to 
unlock the print head.
Make sure that the printer shows a Head Open 
error message, and along with the buzzer sounds.
4 If no error occurs, check the connection of 
the head open sensor connector.
If there is no problem, replace the sensor. Refer to 
Section 5.11 Replacing the Head Open Sensor 
for details.