Printer Configuration and Adjustment
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Adjust the Printhead Pressure
You may need to adjust printhead pressure if printing is too light on one side, if you use thick media, or if
the media drifts from side to side during printing. Use the lowest printhead pressure necessary to produce
good print quality.
See Figure 2. The printhead pressure adjustment dials have setting marks from 1 to 4.
Figure 2 Printhead Pressure Adjustment Dials
See Table 3. Begin with the following pressure settings, based on your printer and media width, and make
adjustments as necessary.
1
Inside dial
2
Outside dial
Table 3 Pressure Setting Starting Points
Printer Media Width Inside Dial Setting Outside Dial Setting
ZT411 1 in. (25 mm) 4 1
2 in. (51 mm) 3 1
3 in. (76 mm) 2.5 1.5
≥ 3.5 in. (89 mm) 2 2
ZT421 2 in. (51 mm) 4 1
3 in. (76 mm) 3.5 1
4 in. (102 mm) 3 2
≥ 5 in. (127 mm) 2.5 2.5
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