C5550 MFP User’s Guide
Introduction > 11
The following optional features are available:
> Internal hard disk drive for storage of overlays, macros 
and downloadable fonts, and automatic collation of 
multiple copies of multi page documents.
> Additional memory, to allow printing of more complex 
pages.
> Additional paper tray for loading a further 530 sheets to 
minimise operator intervention, or different paper stocks 
for letterhead stationery, alternative paper sizes or other 
print media.
> Automatic two-sided (duplex) printing for economical use 
of paper and compact printing of larger documents.
> Storage cabinet.
A
BOUT
 
THIS
 
GUIDE
This manual is your user’s guide (check the web site, 
www.okiprintingsolutions.com, for the most up-to-date version) 
for your MFP and forms part of the overall user support listed 
below:
> Safety, Warranty, and Regulatory Information: to 
provide information for safe use of the MFP.
This is a paper document that is packaged with the MFP 
and should be read before setting up your MFP.
> Set-up Guide: to describe how to unpack, connect and 
turn on your MFP.
This is a paper document that is packaged with the MFP.
> This User’s Guide: to help you to become familiar with 
your MFP and make the best use of its many features. 
Also included are guidelines for troubleshooting and 
maintenance to ensure that it performs at its best. 
Additionally, information is provided for adding optional 
accessories as your printing needs evolve.
NOTE
Images used in this manual may include optional features 
that your MFP does not have installed.