Registration Sensor (PS1) 1 Remove the following components in the order listed: • Toner Cartridge • Trays 2 and 3 • Transfer Roller (see figure 6-60 on page 228) • Registration Assembly (see figure 6-52 on page 218) • Front Cover (see figure 6-7 on page 168) • Tray 1 Assembly (see figure 6-24 on page 187) • Right Lower Door Assembly (see figure 6-16 on page 179) • Paper Input Unit (see figure 6-40 on page 206) Note The sensor retaining tabs are released from above, and the sensor is removed and replaced from inside the Paper Input Unit cavity. 2 Follow the procedure on the following page to remove and reinstall the PS1 sensor. C4085-91087 Engine Removal and Replacement 225