HP Color LaserJet 9500 Printer series - Manual (Page 194)

http://www.hp.com/support/lj9500
192 Chapter 7 – Supplies Rev. 1.0
13 Swing the green lever up. Close all of the doors.
Note
If the lever does not move freely, make sure that the transfer roller and the
transfer belt are pushed into the printer completely.
14 On the right side of the printer, pull the blue tab to remove the old filter from
the slot.
15 Remove the new filter from its packaging and insert the filter into the slot.
CAUTION
Do not print without a filter installed.
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