Datamax Allegro 2 manual Adjusting Printhead Pressure and Support, Printhead Mount Assembly

Troubleshooting

4.2.2 Adjusting Printhead Pressure and Support

The Printer's Printhead support plate requires adjustment if media widths of 3.5" (89mm) or less are used. Figure 4-2 shows the Printhead Mount Assembly, Ribbon Shield, Head Support Plate, and Adjustment Screw in an exploded view.

The Head Support Plate supports the outer end of the Printhead when narrow media is used. Without this support, the Printhead would bear down on the drive roller, causing diminished print quality and premature wear. The Head Support Plate needs to be engaged only when the media width is less than 3.5" (89mm).

To make this adjustment, loosen the two mount screws that fasten the Head to the Support Plate, leaving the screw on the left slightly snug. Load the media and engage the Printhead by rotating the Head-Lift Lever to the ‘down’ position. Turn the adjustment screw clockwise until the support plate moves down and contacts the Bearing Plate underneath. Finally, tighten the two mount screws to secure the Support Plate.

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

Figure 4-2 Printhead Mount Assembly

66 Allegro2