Zebra Technologies R-140 - Manual (Page 86)

Printhead Pressure Adjustment
This adjustment may be necessary if printing is too light on one side or if
thick media is used. Refer to Figure 30 .
1. Perform the toggle positioning procedure. If the problem is solved, you
may stop here; otherwise, continue with the rest of this procedure.
2. Print some labels at 2.4"/61 mm per second by running the PAUSE key
self test (see page 89 ).
3. While printing labels, lower the darkness setting until a gray level of
printing is seen.
4. Loosen the knurled (upper) locking nuts at the top of the toggle
assembly/assemblies.
5. Increase or decrease spring pressure using the knurled (lower) adjusting
nuts on the shafts of the toggle(s) until the left and right edges of
printed area are equally dark.
NOTE: Printhead life can be maximized by using the lowest pressure that
produces the desired print quality.
6. Increase darkness to the optimum level for the media being used.
7. Retighten locking nuts.
Media Sensor Position Adjustment
See “Positioning the Media Sensors” on page 14.
Zebra R-140 User’s Guide 77