Zebra Technologies ZT210, ZT220, ZT230 Communications Problems

138Troubleshooting Communications Problems

Communications Problems

Table 18 identifies problems with communications, the possible causes, and the recommended solutions.

Table 18 • Communications Problems

Problem	Possible Cause	Recommended Solution
A label format was sent to	The communication	Check the printer driver or software
the printer but was not	parameters are incorrect.	communications settings (if applicable).
recognized. The DATA
		If you are using serial communication, check
light does not flash.
		the serial port settings. See PORTS Menu
		on page 36.
		If you are using serial communication, make
		sure that you are using a null modem cable or a
		null modem adapter.
		Check the printer’s handshake protocol setting.
		The setting used must match the one being
		used by the host computer. See Set the Host
		Handshake Protocol Value on page 97.
		If a driver is used, check the driver
		communication settings for your connection.
A label format was sent to	The serial communication	Ensure that the flow control settings match.
the printer. Several labels	settings are incorrect.
		Check the communication cable length. See
print, then the printer
		Table 5 on page 47 for requirements.
skips, misplaces, misses, or
		Check the printer driver or software
distorts the image on the
label.		communications settings (if applicable).
A label format was sent to	The prefix and delimiter	Verify the prefix and delimiter characters. See
the printer but was not	characters set in the printer	Set the Control Prefix Character Value
recognized. The DATA	do not match the ones in the	on page 93 and Set the Delimiter Character
light flashes but no	label format.	Value on page 93.
printing occurs.
	Incorrect data is being sent	Check the communication settings on the
	to the printer.	computer. Ensure that they match the printer
		settings.
		If the problem continues, check the label
		format.

P1048261-004 8/22/12