Ricoh Aficio SP 4310N Hardware Manual page 172

7. Maintaining the Printer
6. Slide the green lock lever to the left ( ), and then remove the paper feed roller ( ).
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7. While sliding the green lock lever is slid to the left ( ),install the new roller ( ). Then, return
the green lock lever to its original position ( ).
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Confirm the green lock lever secures the roller correctly by checking that sure the new roller rotates
smoothly.
8. If the printer is equipped with the optional paper feed unit(s), follow the same procedure to
replace its paper feed roller.
If you installed two paper feed units, also replace both their paper feed rollers.
9. Place paper in the removed paper trays. Lift the front of the tray, and then slide it carefully
into the printer until it stops.
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