Zebra Technologies ZT400 manual 157, Status light flashing yellow

			Troubleshooting
			Error Messages
Table 5 • Error Messages (Continued)
Display/	Possible Cause		Recommended Solution
Indicator Lights
PRINT HEAD OVERTEMP		Caution • The printhead may be hot enough to cause
PRINTING HALTED		severe burns. Allow the printhead to cool.
STATUS light steady yellow	The printhead is over		Allow the printer to cool.
	temperature.		Printing automatically resumes
			when the printhead elements
			cool to an acceptable operating
			temperature.
			If this error persists, consider
			changing where the printer is
			located or using a slower print
			speed.
HEAD COLD		Caution • An improperly connected printhead data or
PRINTING HALTED		power cable can cause these error messages. The
		printhead may be hot enough to cause severe burns.
		Allow the printhead to cool.
THERMISTOR
REPLACE PRINTHEAD	The printhead data cable is not		Call a service technician to
	properly connected.		hook up the printhead
STATUS light steady yellow			properly.
The printer shows one of these messages	The printhead has a faulty		Call a service technician to
or cycles between them.	thermistor.		replace the printhead.
HEAD COLD		Caution • An improperly connected printhead data or
PRINTING HALTED		power cable can cause this error message. The
		printhead may be hot enough to cause severe burns.
STATUS light flashing yellow		Allow the printhead to cool.
	The printhead temperature is		Continue printing while the
	approaching its lower		printhead reaches the correct
	operating limit.		operating temperature. If the
			error remains, the environment
			may be too cold for proper
			printing. Relocate the printer
			to a warmer area.
	The printhead data cable is not		Call a service technician to
	properly connected.		hook up the printhead
			properly.
	The printhead has a faulty		Call a service technician to
	thermistor.		replace the printhead.

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4/8/14 ZT400 Series™ User Guide P1066582-002