SATO CL412E service manual Error LED

		Section 8. Troubleshooting
Print Quality Problems
Symtom	Probable Cause	Suggested Corrective Action
No Label	Loose/broken platen drive belt	Adjust/replace belt Sec. 6.6)
Movement
	Incorrect label pitch sensor selected	Select correct label sensor type
		(DSW2-2)
		Replace fuse on main PCB (Sec. 6.3)
	No +24 volt output	Test power supply and replace if
		necessary (Sec. 6.4)
	Loose set screw on platen	Tighten set screws
	pulley/stepper motor
No Printed	Print head not connected	Verify print head connector fully seated
Image		at head and main PCB (Sec. 6.7)
	Ribbon upside down	Use genuine SATO ribbons
	No + 24 volt output	Test power supply and replace if
		necessary (Sec. 6.4)
	Damaged print head	Replace print head (Sec. 6.7)
	Damaged electronics	Replace circuit board (Sec. 6.2)
Back light but	The most likely cause is the ribbon	Verify that the cable and connector are
no words on
	cable has fallen out or not seated fully	properly seated.
display or no
display	into connector.	Display POT not positioned properly.
POWER LED	AC power cable not connected	Verify that the cable is connected to
not on		the printer and the AC outlet
	Main power fuse defective	Replace fuse (Sec. 6.3)
	Defective power supply	Test power supply and replace if
		defective (Sec. 6.4)
ERROR LED	Head not locked	Close and latch head release
on
LABEL LED	Label supply roll empty	Replenish label supply
on
	Label stock not routed through sensor	Reload labels
	Label sensor not positioned correctly	Adjust sensor position

PN 9001078	SATO CL408e/CL412e Service Manual	Page 8-13
Rev. B