Rear cover 1 For HP Color LaserJet 8550 MFP printer models, complete the following steps before continuing to step 2 on the following page: a Release two thumb screws (callout 1) to disconnect the video I/O connector. b Remove three screws (callout 2) from inside the opening; the plate remains attached to the rear cover. 1 2 2 2 Figure 95. Plate, HP Color LaserJet 8550 MFP printer EN Doors and covers 243