Zebra Technologies ZM400201101L0T Manuale Utente

Routine Maintenance
Cleaning Procedures

79695L-001 Rev. A

ZM400/ZM600 User Guide

3/27/07

You can minimize printhead wear and maintain print quality with regular preventive measures. 
Over time, the movement of media or ribbon across the printhead wears through the protective 
ceramic coating, exposing and eventually damaging the print elements (dots). To avoid 
abrasion:

• Clean the printhead frequently, and use well-lubricated thermal transfer ribbons with 

backings optimized to reduce friction.

• Minimize printhead pressure and burn temperature settings by optimizing the balance 

between the two.

• Ensure that the thermal transfer ribbon is as wide or wider than the label media to prevent 

exposing the elements to the more abrasive label material.

For best results, clean the printhead after changing every roll of ribbon. Inconsistent print 
quality, such as voids in the bar code or graphics, may indicate a dirty printhead.

While performing any tasks near an open printhead, remove all rings, watches, 

hanging necklaces, identification badges, or other metallic objects that could touch the 
printhead. You are not required to turn off the printer power when working near an open 
printhead, but Zebra recommends it as a precaution. If you turn off the power, you will lose 
all temporary settings, such as label formats, and you must reload them before you resume 
printing.

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For printers with a peel assembly, keep the peel assembly closed while cleaning the 

platen roller to reduce the risk of bending the tear-off/peel-off bar.

Printhead assembly

Platen roller