HP SP 3300 - Manual (Page 31)

8.5
<Maintenance>
Tabs on the sides of the cartridge and corresponding grooves
within the printer will guide the cartridge into the correct position
until it locks into place completely.
7 Close the front cover. Make sure that the cover is securely closed.
Printing a configuration page
You can print a configuration page to view current printer settings, or to
help troubleshoot printer problems.
Press and hold the Cancel button for about 5 seconds.
A configuration page prints out.
Maintenance parts
To avoid print quality and paper feed problems resulting from worn parts
and to maintain your machine in top working condition the following
items will need to be replaced at the specified number of pages or when
the life span of each item has expired.
We highly recommends that an authorized service provider, dealer or the
retailer where you bought printer performs this maintenance activity. The
warranty does not cover the replacement of the maintenance parts after their
lifespan.
The warranty does not cover the replacement of the maintenance parts
after their lifespan.
Items Yield (Average)
Transfer roller Approx. 50,000 pages
Fuser unit Approx. 50,000 pages
Pick-up roller Approx. 50,000 pages