Ricoh IM 550F

4.Replacement and Adjustment
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1. Remove the controller box (IM 550F/600F/600SRF: Controller Box (IM 550F/600F/600SRF), P
800/801: Controller Box (P 800/801))
2. Remove the PSU fan. (PSU Fan (FAN3))
3. Remove the ground screw [A] and release the three connectors.