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3.2.3 Disassembling the Engine
This section describes disassembling the engine, including the high-voltage unit (PWB-F) and power supply
board (PWB-E).
3.2.3.1 Optical Unit Removal
❒ Do not touch the optical unit, except during replacement.
❒ Do not open the unit under any conditions.
❒ Do not remove the circuit board from the optical unit under any conditions.
1. Open the top cover.
2. Remove the right cover, left cover, and front cover. (Refer to Section 3.2.1.1.)
3. Remove the cover shield plate.
4. Disconnect connectors CN205 and CN210 from the C180 MAIN board.
4. Remove the 6 screws from the optical unit.
5. Remove the optical unit.
Figure 3-4. Removing the Optical Unit
Disassembly and Assembly EPL-5500W Service Manual
3-6 Rev. A