Repair information 4-91
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8. Carefully slide the scanner unit assembly to the front, and lift up.
Scanner unit assembly removal (model X658)
Warning: When replacing any of the following components:
• Scanner interface card assembly
• System card assembly
• Scanner unit assembly
Only replace one component at a time. replace the required component and perform a POR before replacing a
second component listed above. If this procedure is not followed, the printer will be rendered inoperable. Never
replace two or more of the components listed above without a POR after installing each one or the printer will
be rendered inoperable.
These components can be used as a method of troubleshooting as long as the machine is booted into diagnostic
mode or is operating in diagnostic mode. Once a component has been installed in a machine and powered up
into user mode, it cannot be used in another machine. It must be returned to the manufacturer.
Warning: Be sure to remove the the scanner unit assembly carefully, the operator panel may fall off from its
support.
1. Remove the ADF unit assembly. See “ADF unit assembly removal (model X658)” on page 4-80.
2. Remove the side cover, left. See “Side cover, left removal (model X658)” on page 4-120.
3. Remove the scanner controller card cage cover.
4. Disconnect the CCD and ribbon cable harnesses.
5. Remove the three screws (A) from the right side of the scanner support.
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