Xerox 7750DXF - Phaser Color Laser Printer Service Manual page 237

Developer Housing Assembly
Note
Complete removal of the imaging unit plate assembly is not required for
removal of the developer(s). Tilt the imaging unit plate assembly forward
enough to allow the developer(s) to be removed. Do not disconnect the
imaging unit plate harnesses.
1.
Partially remove the imaging unit plate assembly.
2. A locating pin is at the back of each developer housing assembly that matches a
hole in the frame when positioned and seated correctly. A slight rotating back and
forth of the assembly will help find the locating pin hole in the printer frame.
Service Parts Disassembly
7750-020
8-25