User guide

78 Chapter 4 - Operational overview EN
RAM
 One bank of Non-Volatile RAM (NVRAM) stores parameters.
 Dynamic random access memory (DRAM) provides temporary
storage of the product program code plus copy, scan, and print
data.
Parallel interface or Universal Serial Bus
interface
The formatter receives incoming data through its bidirectional ECP or
USB interface. These interfaces provide high-speed, two-way
communication between the product and the host, allowing you to
change product settings and monitor product status from the host
computer.
Control panel
The control panel configuration varies by model in the HP LaserJet
3300mfp series. For example, only the HP LaserJet 3330mfp has the
fax buttons.
The HP LaserJet 3300mfp series control panel consists of:
 up to six groups of buttons to control fax, copy, scan, and
configuration functionality (with all six on the HP LaserJet 3330).
 a 2 x 16 LCD display for display of status, menus, and messages.
 up to two front panel status lights (one by the cancel button and
one by the
fax/send button on the HP LaserJet 3330).
Draft mode
Depending on which driver is used, selecting draft or EconoMode
from the driver allows the product to use approximately fifty percent
less toner, extending the life of the print cartridge.
MEt
HP MEt effectively doubles the standard memory through a variety of
font and data-compression methods.