Patent ID: 8353566

Claim:
An assembly, comprising: a print bar having a first end and a second end opposite the first end; a lift including first and second guide rods oriented parallel to one another and perpendicular to an axis of the print bar across a print zone, the first end of the print bar slidably connected to the first guide rod and the second end of the print bar slidably connected to the second guide rod, and the lift configured to simultaneously move both ends of the print bar along the guide rods; a motor; and a transmission that includes: a first rack connected to the first end of the print bar; a second rack connected to the second end of the print bar; a single shaft operatively connected to the motor, the shaft oriented parallel to the print bar axis and extending between the first rack and the second rack; a first pinion on the shaft for engaging the first rack; and a second pinion on the shaft for engaging the second rack simultaneously with the first pinion engaging the first rack.