Engine controller assembly (ECU)
CAUTION: PCAs are sensitive to electrostatic discharge (ESD). Look for the ESD reminder
when removing PCAs. Always perform service work at an ESD-protected workstation or mat. If an ESD
workstation or mat is not available, ground yourself by touching the sheet-metal chassis before touching
an ESD-sensitive part.
Protect the ESD-sensitive parts by placing them in ESD pouches when they are out of the product.
CAUTION: Do not bend or fold the flat flexible cables (FFCs) during removal or installation. Also, do
not straighten pre-folds in the FFCs. You must make sure that all FFCs are fully seated in their
connectors. Failure to fully seat an FFC into a connector can cause a short circuit in a PCA.
1. Remove the following components.
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Right cover. See
Right cover on page 100.
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Left cover. See
Left cover on page 102.
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Rear cover. See
Rear cover on page 106.
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Scanner/ADF assembly. See
Scanner/ADF assembly on page 117.
●
Top cover. See
Top cover on page 108.
●
Power-switch PCA and mounting bracket. See
Power-switch PCA on page 130
●
Formatter. See
Formatter on page 132.
●
Duplex assembly. See
Duplex assembly on page 135.
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Fan. See
Fan on page 141.
●
Duplex-drive gears. See
Duplex-drive gears on page 143.
●
Fuser. See
Fuser on page 147.
●
Interlock assembly. See
Interlock assembly on page 152.
ENWW Internal assemblies 153
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