HP color laserjet 2550 series サービスマニュアル
3. Remove one screw (callout 2) from the grounding wire.
1
2
Figure 5-54.
Removing the ECU pan (1 of 2)
4. Turn the printer over so that it rests on its top.
5. Remove one screw from the left side of the printer (callout 3)
6. Remove eight screws (callout 4) from the bottom of the ECU pan.
ENWW
Removal and replacement
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