HP LaserJet 3100 All-in-One Printer series - Manual (Page 232)

EN 9 Troubleshooting and Maintenance 231
6 Scrub the exposed area (top and
front) of the light gray roller using a
side-to-side motion. Do not rotate
the roller to clean the non-exposed
sides.
7 Using a dry, lint-free cloth, wipe the
exposed area of the light gray roller
in a side-to-side motion to remove
loosened dirt.
8 After the alcohol inside the printer
has dried completely, replace the
toner cartridge and close the printer
door.
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