Registration Sensor (PS1) 1 Remove the following components in the order listed: • Toner Cartridge • Trays 2 and 3 • Transfer Roller (see figure 6-62 on page 337) • Registration Assembly (see figure 6-54 on page 326) • Front Cover (see figure 6-7 on page 274) • Tray 1 Assembly (see figure 6-26 on page 295) • Right Lower Door Assembly (see figure 6-16 on page 285) • Paper Input Unit (see figure 6-42 on page 314) 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. 334 Chapter 6 Removal and Replacement C4265-90907