SATO GY412 Operator's Manual page 143

4.4 TROUBLESHOOTING TABLE (cont'd)
TROUBLESHOOTING TABLE
LIGHT PRINT IMAGES
Low print head darkness.
Foreign material on print head.
Excessive print speed.
UNEVEN PRINT DARKNESS
Damaged or worn platen roller.
Dirty print head.
Defective print head.
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
MEANDERING MEDIA
Incorrectly loaded media.
Media is not set properly.
Damaged or worn platen roller.
GY412 Operator Manual
Adjust darkness level setting.
Clean print head and platen roller.
Reduce print speed setting.
Replace platen roller.
Clean print head.
Replace print head as required.
Use higher quality media. Use only SATO-certified media.
Clean print head and platen roller.
Use higher quality media. Use only SATO-certified media.
Adjust darkness level setting.
Adjust print speed as required.
Ensure correct loading.
Set media and media guide correctly.
Replace platen roller.
Section 4: Troubleshooting
Page 4-11