Zebra Technologies 1050020011570, 105SLTM, ZM40021014100T scan, label drift, Vertical drift in, Vertical image or, top-of-formposition, on a label does not, The bar code printed

124Troubleshooting Print Quality Problems

Table 13 • Print Quality Problems (Continued)

Problem	Possible Cause	Recommended Solution
Vertical drift in	Normal tolerances of	1. Calibrate the printer.
top-of-form position	mechanical parts and printer	2. Adjust the label top position setting. See
	modes.	Adjust Label Top Position on page 93.
	Note • A vertical drift of
	± 4 to 6 dot rows
	(approximately 0.5 mm)
	is within normal
	tolerances.
	The printer is out of calibration.	Recalibrate the printer.
	The platen roller is dirty.	See Clean the Printhead and Platen Roller
		on page 109.
Vertical image or	The printer is using	Configure the printer for non-continuous and run
label drift	noncontinuous labels but is	calibration routine, if necessary.
	configured in continuous mode.
	Incorrectly positioned media	Ensure the media sensor is properly positioned to
	sensor.	read a single/consistent interlabel gap.
	Improperly calibrated media	See Calibrate Media and Ribbon Sensor
	sensor.	Sensitivity on page 88.
	The platen roller is dirty.	Clean the platen roller. See Clean the Printhead
		and Platen Roller on page 109.
	Improper printhead pressure	Adjust the printhead pressure to ensure proper
	settings (toggles).	functionality.
	Improperly loaded ribbon or	Verify that the printer is loaded properly.
	media.
	Incompatible media.	Ensure that the interlabel gaps or notches are 2 to
		4 mm and consistently placed. Media must not
		exceed minimum specifications for mode of
		operation.
The bar code printed	The bar code is not within	Perform the FEED Self Test on page 134. 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.
	Not enough blank space around	Leave at least 1/8 in. (3.2 mm) between the bar
	the bar code.	code and other printed areas on the label and
		between the bar code and the edge of the label.

11342L-001 Rev. A 105SL User Guide 6/30/06