FUJITSU fi-4640S - Manual (Page 34)

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Pick Roller
NOTE
The life span of the Pick roller is about 200, 000 sheets or one year.
Use the Abrasion counter on the operator panel to estimate when the Pick roller needs replacement.
The life span may be decreased by as much as half when carbonless sheets are frequently read.
WARNING
Turn off the power before replacing the Pick Rollers.
1
Pull the ADF lever to open the
ADF.
2
Remove the two Thumb
screws.
NOTE
Use a Phillips screwdriver if they are tight.
Pick rollers
(Two rollers are included)
Thumb screws