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Step	Confirmation points and methods	Page	YES	NO
1	Carry out cleaning Clean the CIS Module, White Base Assy and document feed path referring Cleaning the Scanner Unit. Does the product recover from the failure?	---	End	Go to step 2
2	Check the CIS Module related FFC routing Check the connection of CIS Module FFC Correct the problem if there is any. Does the product recover from the failure?	---	End	Go to step 3
3	Check the connection between the printer and the scanner Check the connection between the printer and scanner. Correct the problem if there is any. Does the product recover from the failure?	---	End	Go to step 4
4	Replace the CIS Module Does the product recover from the failure?	CIS Module Full Side CIS Module Home Side CIS Module Center	End	Go to step 5
5	Replace the Scanner Main Board Does the product recover from the failure?	Scanner Main Board	End	Escalate to person in charge

# Part or all of an image cannot be read.