Datamax Allegro 2 manual Fine Printhead Alignment

Troubleshooting

b.To adjust the Ribbon Shield (see Figure 5-2), temporarily move the ribbon and loosen the screw located on the left end of the Head-Support Plate, (do not remove the screws). This end of the shield can be adjusted up or down in order to even out the ribbon tension across the full width of the ribbon.

Note: The mount screws that secure the Ribbon Shield also secure the Head Support Plate. When loosening these screws, be aware that both the shield and the plate may be effected.

c.Position the shield so that there is no rippling or bagging in the ribbon as it travels from the Ribbon Supply Hub. The ribbon should also be adjusted so that tension is even across the entire width of the ribbon.

d.Once the Ribbon Shield is properly positioned, tighten the left screw that supports the Ribbon Shield to the Printhead Mount Assembly. Re-check the ribbon travel to make certain that the ribbon tension is even across the entire width of the ribbon.

d.Feed three or four labels and observe the ribbon as it travels from the Ribbon Supply Hub.

f.Feed the ribbon and paper out the front of the Printer together and check the ribbon for drifting. If the ribbon overlaps one edge of the paper stock, the ribbon and paper are not following the same path. In this case, the paper tracking may need to be re-adjusted. If there is no ribbon overlap, then continue.

3.Fine Printhead Alignment

Print a few rotated bars and inspect the print quality. With a 1/16" (1.59mm) hex key, turn the left and right Head Adjustment Screws counter-clockwise approximately 1/4− 1/2 turn until the desired print quality is achieved. Set the Media Adjust Cam so that the number in the top right corner matches the width (in inches) of the stock being used. Finally, turn the left Head Adjustment Screw 1/4 turn counter-clockwise.

64 Allegro2