Troubleshooting

5.2.3 Mechanical Adjustments

The Printhead is precisely positioned on mount plate locating pins that are adjusted at the factory. Once adjusted, the locating pins will ensure correct alignment of all future replacement heads. It should not be necessary to realign each new Printhead; however, an alignment procedure is required if the Printhead Mount Assembly has been removed or disassembled.

The horizontal placement of the Printhead is adjusted by turning the right and left head-adjustment screws that correspond to the right and left sides of the Printhead. Turning the screws 1/2 turn counter-clockwise will move the Printhead 0.012" (0.305 mm) forward. Likewise, a 1/2 turn clockwise will move the Printhead back 0.012" (0.305 mm). Therefore, only a small adjustment of even a 1/4 turn will cause a big difference in print quality.

 

Do not turn the head-adjustment screws more

 

than 2 complete turns in either direction.

Caution

Damage to the Head Mount Assembly will

result if the adjustment screws are turned too

 

 

far.

The alignment procedure and the sequence that should be followed is described in section 5.3. This procedure should correct poor print quality; however, all adjustments must be performed with label stock that is at least 4" (102 mm) wide. If the final media used is different, then make the specific adjustments necessary after the standard adjustments are completed.

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DMX 400/430 Operator’s Manual