Zebra Technologies Z4Mplus - Manual (Page 137)

129 Troubleshooting
Printer Diagnostics
1/18/06 Z4Mplus/Z6Mplus User Guide 13163L-001 Rev. A
Figure 39 • FEED Test Label
4. See Figure 40 and Table 17 . Inspect the test labels and determine which one has the best
print quality for your application. If you have a bar code verifier, use it to measure
bars/spaces and calculate the print contrast. If you do not have a bar code verifier, use your
eyes or the system scanner to choose the optimal darkness setting based on the labels
printed in this self test.