An ink jet printer includes a printer housing, an imaging drum, a drum frame connected to the printer housing and the imaging drum, a print head frame movably mounted in the printer housing, at least two print heads mounted to the print head frame, a first alignment pin connected to the print head frame, and a second alignment pin connected to the print head frame. The imaging drum includes first and second ends. The drum frame includes a first support connected to the first end of the imaging drum and a second support connected to the second end of the imaging drum. The first support includes a first docking station and the second support includes a second docking station. The print head is movable between a printing position and a cleaning position. Each alignment pin connects to the print head frame and extends generally towards the drum frame. The first alignment pin is adapted to be received by the first docking station when the print head frame is moved into the printing position. The second alignment pin is adapted to be received by the second docking station when the print head frame is moved into the printing position.