This self test can be used to provide the test printouts required when making adjustments to the printer’s mechanical assemblies. See the sample printout in Figure 3.3.
FEED Key Self Test
The CANCEL Key Self Test should be performed before this self test. Information on the “Configuration” printout (CANCEL Key Self Test) can be used with the results of this self test to determine the best Darkness setting for a specific media/ribbon combination.
The FEED Key Self Test will print out at various Darkness settings above and below that of the Darkness value shown on the Configuration Label. Inspect these labels and determine which one has the best darkness setting for the application. This value can be entered into the printer by setting the Darkness during the configuration procedure.
The value printed on that label is added to (plus) or subtracted from (minus) the “Darkness” value specified on the Configuration Label. The resulting numeric value (0 to 30) is the best darkness value for that specific media/ribbon combination.
Optionally, the Darkness value can be programmed into the ZPL II formats sent to the printer.
Figure 3.4 FEED Key Test Sample Printout
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