IBM 4332-004 - InfoPrint 40 B/W Laser Printer User Manual page 171

e. Insert the two new upper feed rollers.
f. Re-insert Tray 1.
g. Follow the same procedure to replace the rollers for Tray 2 and Tray 3
(if the 2500-Sheet Input Unit is installed).
13. Replace the Tray 5 feed rollers (if the 2500-Sheet Input Unit is installed).
a. Remove Tray 3.
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Chapter 7. Maintaining the Printer