If a blockage occurs in either the upper or lower used toner path, the machine will issue SC488.

  • In this case, the mechanism must be disassembled to determine if the upper duct or lower pipe is jammed with clumped toner.
  • The jammed duct or pipe must be replaced.
  1. Open the controller box. (Opening the Controller Box)
  2. Remove the rear cover (x7).
  3. Remove the front edge cover.
  4. Pull these units out partially, to release pressure on the couplings of the motors that must be removed and re-installed during these procedures:
    PCDU
    ITB cleaning unit
    Drawer
    Paper trays
    Be sure to cover the drum to protect it from light.