SATO CT4i Series Operator's Manual page 61

NO PRINTED IMAGE
Print head is disconnected.
No voltage output
Defective print head
Damaged electronics
Interface problems
Data input error
PRINTER CREATES A BLANK LABEL
Data input error
Incorrect label sensor selection
Disconnected print head
Defective print head
Defective main circuit board
INCORRECT LABEL POSITIONING
Incorrect label sensor selection
Improper sensor adjustment
Data input error
Incorrect offset settings
SMEARED PRINT IMAGES
Poor media quality
Foreign material on print head and platen roller
Foreign material on labels
Excessive print head energy
Excessive print speed
CT4i Series Operator Manual
Unit 5: Troubleshooting
Ensure print head wiring harness is connected on each end.
Replace fuse. Test power supply and replace as required
Replace print head and reset counter
Replace circuit board
Troubleshoot interface - refer to the next chapter
Ensure correct data stream
Ensure correct data stream
Ensure correct printer configuration
Power off the printer and ensure a proper connection
Replace print head as required
Replace main board as required
Ensure correct printer configuration
Adjust sensor sensitivity as required
Ensure correct data stream
Adjust settings as required
Use higher quality media
Clean print head and rollers
Use higher quality media
Adjust darkness setting
Adjust print speed as required
5-5