SATO ct4i manual Image Voids, Ribbon Wrinkling, Light Print Images, Uneven Print Darkness

	Unit 5: Troubleshooting
TROUBLESHOOTING TABLE
IMAGE VOIDS
Dirty print head		Clean print head
Damaged print head		Replace print head
Damaged electronics		Replace circuit board
Damaged or worn roller		Replace rollers
Poor label quality		Use higher quality media
Ribbon stock and media are mismatched		Consult with media supplier. Use only SATO-certified media
RIBBON WRINKLING
Poor head alignment		Adjust head balance and alignment
Excessive temperature setting		Adjust temperature
Poor ribbon tension		Adjust tension as required
Worn roller		Replace as necessary
Foreign material on print head and/or rollers		Clean as required
Foreign material on labels		Use higher quality media
Damaged print head		Replace print head as required
LIGHT PRINT IMAGES
Low print head energy/darkness		Adjust darkness level
Low print head pressure		Adjust head pressure and/or balance
Foreign material on print head		Clean print head and rollers
Improper head alignment		Align print head as required
Excessive print speed		Reduce print speed setting
UNEVEN PRINT DARKNESS
Unbalanced print head		Adjust head balance
Worn rollers		Replace rollers as required
Dirty print head		Clean print head
MEANDERING MEDIA
Incorrectly loaded media		Ensure correct loading
Improperly adjusted media guides		Adjust as required
Unbalanced print head		Adjust as required
Worn rollers		Replace as required
NO LABEL MOVEMENT
Loose or broken timing belt		Replace or adjust as required
Incorrect label sensor selected		Check printer configuration for proper sensor selection
No voltage output		Replace fuse. Test power supply and replace as required
Drive motor not operating		Ensure wiring harness connection. Replace as necessary
LED FIELD ILLUMINATED BUT NO DISPLAY AT ALL
Power supply issues		Ensure cable properly connected. Check/replace power supply
Incorrectly positioned display potentiometer.		Adjust as required

CT4i Series Operator Manual 5-4