Fujitsu fi-4220C Operator's Manual page 101

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Pad ASY
Clean the Pad ASY (rubber surface) downwards (direction of
arrow). When doing this, take care not to catch the pick
springs to avoid bending.
•
Pick roller
Lightly clean the Pick rollers taking care not to scratch the
roller surfaces and the Mylar sheet. Take particular care when
cleaning these rollers, as black foreign matter on these rollers
affects document pick performance.
72 5.3 Cleaning the ADF
Pick spring
The portion to clean
Mylar sheet (Transparent)