Zebra Technologies ZT400 manual 150

150

Troubleshooting

Printing Issues

Table 2 • Printing Issues (Continued)

Issue	Possible Cause	Recommended Solution
Vertical image or	The printer is using	Set the printer for the correct media type
label drift	non-continuous labels but is	(gap/notch, continuous, or mark—see Media
	configured in continuous mode.	Type on page 67) and calibrate the printer, if
		necessary (see Calibrate the Ribbon and Media
		Sensors on page 119).
	The media sensor is calibrated	Calibrate the printer. See Calibrate the Ribbon
	improperly.	and Media Sensors on page 119.
	The platen roller is dirty.	Clean the printhead and platen roller. See Clean
		the Printhead and Platen Roller on page 132.
	Improper printhead pressure	Adjust the printhead pressure to ensure proper
	settings (toggles).	functionality. See Adjust the Printhead Pressure
		on page 124.
	The media or ribbon is loaded	Ensure that the media and ribbon are loaded
	incorrectly.	correctly. See Load the Ribbon on page 60 and
		Load the Media on page 34.
	Incompatible media.	You must use media that meets the printer
		specifications. Ensure that the interlabel gaps or
		notches are 2 to 4 mm and consistently placed
		(see Media Specifications on page 176).
The bar code printed	The bar code is not within	Perform the FEED Self Test on page 165. Adjust
on a label does not	specifications because the print	the darkness or print speed settings as necessary.
scan.	is too light or too dark.
	There is not enough blank	Leave at least 1/8 in. (3.2 mm) between the bar
	space around the bar code.	code and other printed areas on the label and
		between the bar code and the edge of the label.
Auto Calibrate failed.	The media or ribbon is loaded	Ensure that the media and ribbon are loaded
	incorrectly.	correctly. See Load the Ribbon on page 60 and
		Load the Media on page 34.
	The sensors could not detect the	Calibrate the printer. See Calibrate the Ribbon
	media or ribbon.	and Media Sensors on page 119.
	The sensors are dirty or	Ensure that the sensors are clean and properly
	positioned improperly.	positioned.
	The media type is set	Set the printer for the correct media type
	incorrectly.	(gap/notch, continuous, or mark). See Media
		Type on page 67.

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