SATO CL412E service manual Troubleshooting Tables, Print Quality Problems

Section 8. Troubleshooting

8.8 Troubleshooting Tables

The troubleshooting table below includes the following general symptoms descriptions:

•	Image Voids	•	No Ribbon Movement	• POWER LED not on
•	Ribbon Wrinkle	•	No Label Movement	•	ERROR LED on
•	Light Images	•	No Printed Image	• ON LINE LED not on
•	Smearing	•	Display Problem	•	No Label Drive

Print Quality Problems

Symtom	Probable Cause	Suggested Corrective Action
Image Voids	Poor quality labels	Use thermal transfer compatible stock
	Poor quality ribbons	Use genuine SATO ribbons
	Ribbon not matched to label stock	Check with media suppliers
	Damaged electronics	Replace circuit board (Sec. 6.2)
	Damaged platen	Replace platen
Ribbon		Adjust head balance (Sec. 5.6)
	Poor head alignment	Adjust ribbon roller
Wrinkle
		Adjust head alignment
	Poor ribbon tension	Adjust ribbon tension (Sec. 5.2)
	Worn platen	Replace platen (Sec. 6.8)
	Foreign material on head/platen	Clean head and platen
	Foreign material on labels	Use high quality label stock
	Damaged print head	Replace print head (Sec. 6.7)
Light Images	Poor quality labels	Use thermal transfer compatible stock
	Poor quality ribbons	Use genuine SATO ribbons
	Low print head energy/darkness	Adjust darkness control
		(See Operator Manual)

PN 9001078	SATO CL408e/CL412e Service Manual	Page 8-11
Rev. B