Chapter 4 Disassembly / Assembly and Adjustment
4.2 Removal / Replacement
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9 Release the harness from the harness guide installed on the HOUSING MCU (PL18.1.8).
10 Remove the two screws (silver, M3, 6mm) that fix the HOUSING MCU (PL18.1.8), release the
hook, and then remove the HOUSING MCU from the printer.