6-5 
 
6.6.7 Recorder Failures 
Symptoms  Possible Cause  Corrective Action 
No printout  Recorder module 
disabled 
1. Check if the recorder status indicator lights. 
2. If yes, enable the module in the [Factory Maintenance] menu. 
Otherwise, check for other possible causes. 
Paper reversed  Re-install the paper roll. 
Cable defective  Check that the cable between the recorder and main board is correctly 
connected. 
Recorder defective  Replace the recorder. 
Poor print quality or 
paper not feeding 
properly 
Paper roll not properly 
installed 
Stop the recorder and re-install the paper roll. 
Print head dirty  1. Check the thermal print head and the paper roller for foreign matter.
2. Clean the thermal print head with an appropriate clean solution. 
Recorder defective  Replace the recorder. 
 
 
6.6.8 Output Interface Failure 
Symptoms  Possible Cause  Corrective Action 
No analog out signal 
Cable defective 
1. Check that the cable between the multi-parameter board and 
power management board is correctly connected. 
2. Check that the cable between power management board and 
interface board is correctly connected. 
Multi-parameter board failure  Replace the multi-parameter board 
Power management board 
defective 
Replace the power management board. 
The connector board failed.  Replace the connector board . 
Unable to use the 
USB devices 
USB drive data 
transfer failure 
Cable defective 
1. Check that the cable between the power management board 
and main board is correctly connected. 
2. Check that the cable between power management board and 
interface board is correctly connected. 
The connector board failed.  Replace the connector board. 
Power management board 
defective 
Replace the power management board. 
The main board failed.  Replace the main board. 
Improper setup 
Select [Main Menu]→[Maintenance >>]→[User 
Maintenance >>]→enter the required password→ [Others >>] 
and set [Data Transfer Method] to [USB Device].